E-ISSN 0976-3945
  International Journal of Advanced Engineering Technology

                                                        -An Open Access Peer Reviewed e-Journal

 

 
 

HYBRID PRODUCTION SYSTEMS: A NEW APPROACH

Authors: Ravindra Pathak, Dr. Sunil K. Somani

IJAET/ Volume III/ Issue I/ January-March'2012/01-03

ABSTRACT
The Main objective of this paper to present unified combined view of some shop floor control policies like KANBAN & CONWIP for repetitive manufacturing. By combining the information flow of these two control systems, We developed several new Hybrid Control systems namely Hybrid Common CONWIP With Single Card-KANBAN Control System (HCCSCKCS), Hybrid Common CONWIP With Multi Card-KANBAN Control System (HCCMCKCS),Hybrid Individual CONWIP With Single Card -KANBAN Control System (HICSCKCS), Hybrid Individual CONWIP With Multi Card -KANBAN Control System (HICMCKCS). These policies can attain the same throughput and service levels even high with significantly reduced inventory level. In paper main emphasis will be on the pattern of information flow in new proposed hybrid Production Control Systems.

WIND INTERFERENCE ON SINGLE SIMILAR GABLE ROOF BUILDING WITH OVERHANGS

 

Authors: Narayan K*, Gairola A

 

IJAET/ Volume III/ Issue I/ January-March'2012/04-12

ABSTRACT
The building model with extended overhang having 25 º roofs slope which is widely used in coastal zones in India has been selected to carry out the study on interference effect. An interference effect due to the presence of single similar building has been studied. The design pressure coefficients obtained for the interfering cases are normalized by those for the isolated case thus obtaining the Interference Factor (IF). The observed values of area averaged design pressure coefficients obtained in the presence of interfering building(s) have been compared with those for the isolated one for the respective zones of the building roof. Maximum increase in the design wind pressure coefficients for interference with a single similar building is observed as 48% and occurs at the corner zones.

PERFORMANCE EVALUATION OF ROUTING PROTOCOLS FOR WIRELESS ADHOC NETWORK

 

Authors: Sujata Agrawal, Dr. M. B. Daigavane Dr. K. D. Kulat

IJAET/ Volume III/ Issue I/ January-March'2012/13-17

ABSTRACT
In wireless network, comparison of the routing protocols for different network topologies plays very important role for evaluation of its performance .Performance is calculated by Quality of service(QoS) parameters. In this paper parameters like throughput, delay and fairness are studied with the help of NS2.34 network simulator software. Comparative evaluation of adhoc routing protocols like Adhoc on demand distance vector (AODV),dynamic source routing (DSR),DSDV and Adhoc on demand multipath distance vector (AOMDV) is done in different scenarios, ie one hop and two hops. It is observed that in 2 hops the throughput of AODV protocol is good but its delay is poor, throughput and delay of DSDV protocol is poor and throughput and delay for DSR is balanced one. In single hop fairness of AODV and AOMDV protocol is good, it is balanced in DSR and it is worst in DSDV.

GMC ALGORITHM WITH IMC AND OTHER CONTROLLERS FOR A CHEMICAL PROCESS

 

Authors: Ms. D. Subbulekshmi, Dr. J. Kanakaraj

 

IJAET/ Volume III/ Issue I/ January-March'2012/18-21

ABSTRACT
This article presents Generic Model Control (GMC) algorithms for a approximated model of interacting thermal process. Control laws obtained are relatively simple with good results. The algorithm makes the closed loop system linear in an input-output sense. Simulation results are verified. A MIMO process with IMC and PI, PI with set point weighting, Fuzzy Logic Controller was designed and implemented and their responses compared.

IMPROVEMENT IN QUALITY DIMENSIONS OF SHELL AND TUBE TYPE HEAT EXCHANGER BY USING DESIGN SOFTWARE

 

Authors: V.N.Mane, Prof. J.S. Bagi

 

IJAET/ Volume III/ Issue I/ January-March'2012/22-24

ABSTRACT
Mechanical industries have gone through the significant changes in last decade. Customers focus on product quality, product delivery time and cost of product. Because of these, a company has to develop design software to meet the requirement of the customers. Normally, the heat exchanger design calculations are required iterative procedure to optimum solution. But it requires lot of calculation work which is time consuming. The computer software will play important role to eliminate the problem of iterative calculations. To design for better quality , it is necessary first what quality means. A product or process that is reliable, and that performs its intended function is said to be a quality product. The degree to which something meets or exceeds the expectations of its consumers. This paper describes how improvement in quality dimensions of Heat Exchangers takes place by using design software.

32*32 BIT MATRIX COPROCESSOR DESIGN USING VHDL-FPGA DEVICE FOR ADVANCED RISC MACHINE OPERATIONS

 

Authors: Viral Makwana ,Vandana Shah, Roma Patel

 

IJAET/ Volume III/ Issue I/ January-March'2012/25-28

ABSTRACT
There are a number of physical features that have driven the ARM processor design. First, Portable embedded system require some form of battery power. The ARM processor has been specifically designed to be small to reduced power consumption and extended battery operation-essential for applications such as mobile phones and personal digital assistants (PDAs). It is used for 32-bit embedded processor cores. Many of the top semiconductor companies around the world produce products based around the ARM processor. The main idea of this paper is to make such a 32 bit operated RISC machine using FPGA. This will help designer to increase the core density and to make the less power consumption device for the 32 bit ARM coprocessor. In this paper 32*32 matrix coprocessor is developed which is used for different applications like image processing, satellite communication etc.

INTEGRATION OF SIX SIGMA WITH PROJECT MANAGEMENT

 

Authors: Shah Manit Vijay*

 

IJAET/ Volume III/ Issue I/ January-March'2012/29-32

ABSTRACT
Competition is increasing rapidly and it is not good enough to complete the projects within time and budget, but the aim is to understand the Voice of Customers (VOC). In the last few decades, the project management concept and its techniques have established proven practices and demonstrated their worth within several organizations. But the continuing dramatic failures in projects have highlighted the disadvantages in traditional methods of project management and in particular, the ways in which projects are formulated and executed through them, leaves many opportunities for further development in the project management process.

INTERACTIVE VOICE RESPONSE SYSTEM FOR EDUCATIONAL INSTITUTION

 

Authors: Ms Seema P Mishra, Ms Apeksha S.Chavan, Swapnil S. Gourkar

 

IJAET/ Volume III/ Issue I/ January-March'2012/33-38

ABSTRACT:
The Interactive Voice Response (IVR) System serves as a bridge between people and computer databases by connecting the telephone network with the database. The telephone user can access the information from anywhere at anytime simply by dialing a specified number and following an on-line instruction when a connection has been established. The IVR system uses pre-recorded or computer generated voice responses to provide information in response to an input from a telephone caller. The input may be given by means of touch-tone or Dual Tone Multi-Frequency (DTMF) signal, which is generated when a caller presses a key of his/her telephone set, and the sequence of messages to be played is determined dynamically according to an internal menu structure (maintained within the IVR application program) and the user input. The IVRS system which will be designed will provide an ideal platform for the operation of start-ups and existing small concerns. It will be a highly economical and efficient way to replace the Dialogic card which is very costly and requires a high maintenance and regular up gradation. The IVRS system which will be designed will consist of simple components like microcontroller and some basic application chips interfaced to a PC which will have small software running in the backend while the other jobs are performed on the front end.

INTERNET CONNECTIVITY BETWEEN MOBILE ADHOC NETWORK USING MOBILE IP

Authors: Prof. (Mrs) Sayali N. Mane, Prof. (Mr.) A. R. Nigvekar

 

IJAET/ Volume III/ Issue I/ January-March'2012/39-41

 

ABSTRACT
Mobile ad hoc networking allows nodes to form temporary networks and communicate beyond transmitter range by supporting multihop communication through IP routing. Routing in such networks is often reactive, i.e., performed on-demand, as opposed to Internet routing that is proactive. As ad hoc networks are formed on a temporary basis, any IP address should be allowed to appear in an ad hoc network. MlPMANET, a solution for connecting an ad hoc network, in which on-demand routing is used, to the Internet. MIPMANET, provides Internet access by using Mobile IP with foreign agent care-of addresses and reverse tunneling. This allows nodes to enjoy the mobility services of Mobile IP while at the same time the requirements on the ad hoc routing protocol are kept to a minimum. Simulations of MIPMANET have been performed in Network Simulator 2. The Ad hoc On-demand Distance Vector (AODV) routing protocol has been used for routing within the ad hoc network. These simulations show that the ability to choose the closest access point to the Internet is worth extra work, as less traffic is generated in the network resulting in lower delays and fewer dropped packets. This paper again tries to calculate nodal energy when packets are travel from source to destination under different conditions.

EVALUATION OF ENGINEERING PROPERTIES FOR POLYPROPYLENE FIBRE REINFORCED CONCRETE

 

Authors: Priti A. Patel, Dr. Atul K. Desai and Dr. Jatin A. Desai

 

IJAET/ Volume III/ Issue I/ January-March'2012/42-45

ABSTRACT
As concrete is the most commonly used material in construction, improvement of cementitious material become more and more essential. Conventional concrete has two major drawbacks: low tensile strength and a destructive and brittle failure. In an attempt to increase concrete ductility and energy absorption, polypropylene fibre reinforced concrete (PFRC) has been introduced. This study is part of a research program on evaluating the performance of polypropylene fibre reinforced concrete. An experimental investigation explored properties such as compressive strength, flexural strength, split tensile strength and shear strength of polypropylene fibre reinforced concrete. The fibre volume fraction Vf ranges from 0 to 2%. No significant change is found for compressive strength but flexural, split tensile and shear strength improves greatly, when compared to the plain concrete.

DEVELOPMENT OF LOW COST SHAKE TABLES AND INSTRUMENTATION SETUP FOR EARTHQUAKE ENGINEERING LABORATORY

 

Authors: C. S. Sanghvi, H S Patil and B J Shah

 

IJAET/ Volume III/ Issue I/ January-March'2012/46-49

ABSTRACT
For the development in the field of earthquake engineering, experimental study is required. To study the effects of earthquake, laboratory facilities are needed. The development has reached to a stage where earthquake simulation is achieved in laboratory. Shake table is used to provide earthquake simulation and to test the prototype and scaled model of the structure. In order to reproduce actual earthquake data, a six-degree of freedom electro-hydraulic shaking table is essential. They are very expensive and require high maintenance and operational costs. There exists a need to develop suitable teaching and learning aids to augment the classroom teaching. One of the most effective ways to achieve this is to develop simple experimental setup with suitable shake table. Development of shake table for the Earthquake Engineering laboratory to test models is a challenge. Single translation (horizontal) degree of freedom shaking tables is useful for laboratory testing to study behavior of structures. From this perspective, low cost uni-axial shaking tables were designed & fabricated at L.D College of Engineering. These low cost shake tables will be used to study behavior of structure through models under harmonic as well as random excitation. The cost of shake table is very high and it is difficult for the institutes to acquire such facilities. Based on this fact, an effort has been made to fabricate two low cost shake tables with required specifications to test models in Earthquake Engineering Laboratory along with a LVDT based instrumentation setup. The instrumentation setup comprises of LVDT and Data Acquisition System. Response of models studied through shake table testing. Shake table with servo motor control & shake table with 1.0 HP motor is costing around Rs 3,50,000/- & 80,000/- respectively. The cost of instrumentation for such set up is only Rs 20,000/-. This effort will fulfill the basic need of the Earthquake Engineering laboratory in form of low cost shake table & required instrumentation, to study behavior of structure through models by shake table testing.

SANITATION IN INDIAN RAILWAY PREMISES: A GREAT CAUSE OF CONCERN

 

Authors: Dr. Manoj Hedaoo, Dr. Suchita Hirde , Ms. Arshi Khan

 

IJAET/ Volume III/ Issue I/ January-March'2012/50-55

ABSTRACT
Sanitation is always regarded as a key of development intervention. Sanitation generally refers to the provision of facilities for disposal of human urine and faeces. It deals with maintenance of hygienic conditions through services such as collection and disposal of solid and liquid waste. Several deadly diseases because of lack of sanitation like diarrhea, dysentery, typhoid, malaria, filariasis dengue and schistosomasis are the outcome of improper or lack of sanitation. Indian Railways has always been a possession which has made us proud as an Indian. Railways cover length and breadth of country through its rails. It has 1,14,500 km of total track and 7083 stations. It has come up as a fast growing and profit making organization. However it has been striving since many years to achieve complete sanitation in railways. Open defecation through railways, unclean toilets, choked basins, litters in bogeys and along tracks are the causes that has compelled the environmental engineers to put a thought over sanitation in railways. This study aims to bring the topic in to focus so as to create the awareness that how important it is to maintain sanitation in railway premises and how environmental pollution can be controlled through railways. We have celebrated ‘2008’ as International Year of Sanitation. Similarly one of the targets set for the millennium development goal (MDG) by the members of United Nations is to ‘halve, by 2015, the proportion of the population without sustainable access to safe drinking water and basic sanitation’. In view of this target, we can contribute our big share by achieving complete sanitation in railways which is one of the most successful and largest organizations of India.

MANUFACTURING AND FORM POSTPONEMENT

 

Authors: P. Atmaram, Dr. G. Mohan Kumar

 

IJAET/ Volume III/ Issue I/ January-March'2012/56-63

ABSTRACT

Postponement is a growing trend in manufacturing. It can lead to superior supply chains. Form postponement (FP) involves the delay of final manufacturing until a customer order is received and is commonly regarded as an approach to mass customisation. Mass customisation is a trend towards the production and distribution of individually customised goods and services for a mass market. It is providing numerous customer chosen variations on every order with little lead-time or cost penalty. This research project aims to address how FP is applied within the manufacturing facility.

OPTIMIZATION OF INCUBATION TIME, FERMENTATION TEMPERATURE & O2 FLOW RATE IN CITRIC ACID FERMENTATION USING RESPONSE SURFACE METHODOLOGY (RSM)

 

Authors: K. Anand Kishore and G. Venkat Reddy

 

IJAET/ Volume III/ Issue I/ January-March'2012/64-67

ABSTRACT
Citric acid is an important commercial product and it is produced mainly by submerged aerobic fermentation. The large scale use of this organic acid requires development of effective and efficient production process. The yield of Citric acid can be enhanced if the main operating variables: Initial sucrose concentration, Initial pH, Stirrer speed, Incubation time, Fermentation temperature and O2 flow rate are properly optimized. The present investigation involves batch fermentation of Citric acid from sucrose with Aspergillus Niger NCIM 705 and optimization of three variables: Incubation time, Fermentation temperature and O2 flow rate out of the said variables. Response Surface Methodology (RSM) has been employed to optimize the variables and to study their effects on the yields of citric acid. For the three optimizable variables, fifteen different combinations of experiments were designed using Central Composite Design (CCD).The experiments were conducted accordingly and the concentrations of resulting citric acid were measured. The experimental results obtained were used to produce a second order equation with the yield of citric acid as a function of Incubation time, Fermentation temperature and O2 flow rate. Different levels of the three variables were found to have a significant positive effect on citric acid production. A maximum concentration of 52.49 g/l for citric acid was found at Initial sucrose concentration of 155g/l, Initial medium pH of 6.0 and stirrer speed of 240 rpm with the RSM optimized variables: 5 days of fermentation time, 300 C of fermentation temperature and 1.0 lpm of O2 flow rate.

PERFORMANCE ENHANCEMENT OF AIR FILTER BY DESIGN OPTIMIZATION

 

Authors: M. R. Chopade, A.P.Valavade, S. H. Barhatte

 

IJAET/ Volume III/ Issue I/ January-March'2012/68-70

ABSTRACT
Air intake system and filter play a major role in getting good quality air in automobile engines. It improves the combustion efficiency and also reduces air pollution. The work of an air filter is to filter the dirt particles from the intake air and supply cleaner air to the automobile engines. Optimum utilization of filter can significantly reduce the cost of filter replacements frequently and keep the filter in use for longer time. Computational Fluid Dynamics (CFD) is considered to be the most cost effective solution for flow analysis of intake system along with filter media. This paper focuses on optimizing the geometry of an intake system in automobile industry to reduce the pressure drop and enhance the filter utilization area. A 3-D viscous CFD analysis is carried for an existing model. Based on CFD results, geometrical changes like introduction of eccentricity of filter element in casing to improve the flow characteristics can be done. The CFD analysis of optimized model is again carried out and the results showed good improvement in flow behavior.

SOFTWARE ARCHITECTURE & ARCHITECTURAL DESIGN DECISION: IMPACT OF ARCHITECTURAL VAPORIZATION

 

Authors: Dr. K. C. Joshi, Himanshu Hora

 

IJAET/ Volume III/ Issue I/ January-March'2012/71-74

ABSTRACT
The discipline of software engineering is concerned with the development, operation, and maintenance of software [1]. Software engineering research is all about making bigger, better, and faster software. Bigger, as in creating ever more complex and bigger software systems to deal with even more complex problems. Software architecture can be considered as the collection of key decisions concerning the design of the software of a system. Knowledge about this design, i.e. architectural knowledge, is the key for understanding software architecture and thus the software itself. Architectural knowledge is mostly tacit; it only exists in the heads of the creators. A problem is that this type of knowledge is easily lost. This phenomenon is called architectural knowledge vaporization and contributes to a number of problems that the industry is struggling with: expensive system evolution, difficult stakeholder communication, and limited reusability. The central theme of this study and research is how to reduce this vaporization of architectural knowledge. The focus is on one important form of architectural knowledge: architectural design decisions.

ENVIRONMENTAL CORROSION STUDIES OF COLD ROLLED AUSTENITIC STAINLESS STEEL

 

Authors:Manoranjan Kumar Singh and Anil Kumar*

 

IJAET/ Volume III/ Issue I/ January-March'2012/75-79

ABSTRACT
 

HIGH–SPEED CHAOTIC OPTICAL COMMUNICATION REQUIRES DYNAMIC KEY

 

Authors:  Saha Panthaeb*, Sarkar Anindita

 

IJAET/ Volume III/ Issue I/ January-March'2012/80-81

ABSTRACT
Here we have placed the need of a dynamic key for semiconductor laser based cryptographic system (for digital data transmission). This makes such systems more secure and reliable compared to other existing cryptographic systems based on fixed key.

COMPARATIVE STUDY OF THEORETICAL AND PRACTICAL SURFACE ROUGHNESS PROFILES PRODUCED IN TURNING

 

Authors: M. Ramalinga Reddy, Late V.S.R. Murthy, P.Ravi Kumar, G.Krishna Mohan Rao*

 

IJAET/ Volume III/ Issue I/ January-March'2012/89-99

ABSTRACT
An ideal surface produced in machining has typical roughness due to these feed marks which can be modeled and quantitatively predicted from the geometry of the cutting tool and its relative path or feed rate. The associated mechanism of surface generation can be termed as deterministic and intrinsic to the process. However the real or practical surface has considerable variation from the ideal theoretical surface which can be visualized but cannot be mathematically modeled. The basic geometry of roughness profile consists of ridges and furrows, which follow the angles of side cutting edge, end cutting edge and their intersection which may be sharp pointed or radiused. The plastic flow due to ploughing action of the cutting tool results in the swelling at the flanks which can be radially upward or axially backward or side flow. The factors which can affect cutting forces and plastic flow have therefore been selected for study viz. depth of cut, rake angle, work material properties, cutting fluid and cutting speed. The response parameters are surface roughness profile and its characteristics . In this paper , relative characteristics of theoretical and practical surface roughness profiles are compared and the corresponding Fourier spectra is presented.

EFFECT OF HEATING PRESSURE ON MECHANICAL PROPERTIES OF NYLON-6 JOINTS PRODUCED BY CONTINUOUS DRIVE FRICTION WELDING

 

Authors: Jatinder Gill , Jagdev Singh

 

IJAET/ Volume III/ Issue I/ January-March'2012/100-103

ABSTRACT
In this paper an attempt has been made to study the effect of Heating Pressure on the Tensile strength, Axial shortening and Flash width of Nylon-6 weld joints produced by continous drive friction welding.The Heating Pressure, Heating Time,Heating pressure ,Spindle Rotation Speed were the process parameters used in this study. various experiments were conducted by varring the Heating Presssure and keeping the other parameters fixed on the modified capstan lathe as a friction welding machine. Nylon-6 rods of 20 mm diameter were used to fabricate the joint. The study indicates that the Tensile Strength, Axial Shortening and Flash Width get affected with change in the Heating Pressure. This study shows that, with the increase in the Heating Pressure the tensile strength of the welded specimens was first increases and after reaches the maximum value it again start decreases, whereas axial shortening and flash width increases

RENEWABLE ENERGY IN ELECTRIC POWER SYSTEM

 

Authors: Dr. S. M. Ali, Er. Mir Manjur Elahi

 

IJAET/ Volume III/ Issue I/ January-March'2012/104-107

ABSTRACT
This paper presents technological solutions that intend to contribute both for the efficient production of electric energy from renewable non-pollutant sources (namely Wind and Sun) and to the improvement of power quality in the electrical systems. It proposes the development of low-cost and high-efficiency power controllers that optimize energy extraction from hybrid systems, constituted by photovoltaic solar panels and wind power turbines, in small renewable energy power plants. Main innovations are the use of a single microcontroller for both sources’ power control and the development of an interface between the DC link and the AC electrical system. This interface uses a control system based in the p-q theory that takes into account power quality issues. The paper also presents a cost study regarding products for renewable systems available in the market.

MULTIPLE REGRESSION MODEL FOR CUTTING FORCE IN TURNING UD-GFRP USING POLYCRYSTALLINE DIAMOND CUTTING TOOL

 

Authors: Surinder Kumar, Meenu, P.S. Satsangic, H.K. Sardanad

 

IJAET/ Volume III/ Issue I/ January-March'2012/108-115

ABSTRACT
In this paper, Taguchi method is applied to find optimum process parameters for turning UD-GFRP rod using polycrystalline diamond cutting tool. The process parameters considered include cutting speed, depth of cut and feed rate. The experiments are conducted by L8 orthogonal array as suggested by Taguchi. Signal to Noise ratio and ANOVA are employed to analyse the effect of turning process parameter on the radial force. The results from confirmation runs indicate that the determined optimal combination of machining parameters improve the performance of the machining process.

PERFORMANCE, VIBRATION AND EMISSION ANALYSIS OF DIESEL ENGINE FUELLED WITH FISH OIL BIO DIESEL BLENDS

 

Authors: Dr. G.R.K. Sastry*, K.Venkateswarlu, Dr. Syed Yousufuddin, Dr.B.S.R Murthy

 

IJAET/ Volume III/ Issue I/ January-March'2012/116-120

ABSTRACT
This paper presents the Performance, emission and vibration evaluation of four stroke single cylinder diesel engine fuelled with three fish oil biodiesel (FME) blends. FME in three different proportions viz.20%, 30% and 40% by volume is mixed with diesel to form bio diesel blends (B20, B30 and B40). Performance Parameters like fuel consumption, torque and brake thermal efficiency were measured at different loads for pure diesel and various blends of FME. Emission studies were also carried out to study the CO, NOx and smoke emissions. The results demonstrate that the smoke and CO emissions from FME blends operated engine are comparatively less with that of pure diesel operation which is accompanied by an increase in NOx emissions.

WORK-RELATED MUSCULOSKELETAL DISORDERS OF WORKERS IN BRICK MAKING FACTORIES OF UTTAR PRADESH-AN ERGONOMIC APPROACH

Authors: Kumkum Pandey, Aditi Vats

 

IJAET/ Volume III/ Issue I/ January-March'2012/121-125

ABSTRACT
India has a largely labour-intensive economy and peoples are primarily associated with industrial work like in Brick factories. Owning to poor socioeconomic conditions they are compel to carryout a considerable number of manual, rigorous tasks in brick factories. The main aim of this study was to investigate the self reported Work-related Musculoskeletal Disorders by male and female workers during individual raw brick making activities and to analyze the causes of discomfort related to various postures adopted by the workers. Twenty male and 20 female workers from raw brick making unit were randomly selected and a detailed work related musculoskeletal pain/discomfort were analyzed in different activities with the revised Nordic Questionnaire. All the selected workers had given their responses, which were analyzed. Total 20 percent respondents were having knowledge about the musculoskeletal pain/discomfort. Nearly 78 percent reported that they prevented themselves from normal activities and more than 50 percent were stayed away from normal work activities because of the pain/discomfort. It was reported that 100 percent of the respondents complained pain in digging and crushing clay activities. Thirty percent of males and nearly 38 percent females i.e. approx 68 percent respondents said that the activity of wetting clay caused the pain. All the respondents suffered from pain and discomfort due to mixing clay, carrying clay, loading and pushing wheelbarrow caused to almost all the workers of the brick making unit. On the other hand nearly 33 percent of males and 40 percent of females felt the pain while shaping the bricks. Majority of the respondents were feeling pain and discomfort in different body parts. It was also observed that those workers worked continuously in awkward postures during certain raw brick making activities. Consequently they may suffer from discomfort in different parts of the body. Even mostly they were from middle generation and were felt the musculoskeletal pain/discomfort in different body parts

SIGNIFICANCE OF WEB SERVICES IN WEB APPLICATIONS

 

Authors: Prof. (Dr.) Khanna SamratVivekanand Omprakash
Asst. Prof Mijal Mistry

 

IJAET/ Volume III/ Issue I/ January-March'2012/131-132

 

ABSTRACT
Now a days the importance of using web services have been increase widely as it provides a more procedural way for communication. It provides a common way for communication and easiness of programming. It also runs faster on server.

A COMPACT MAXIMUM POWER POINT TRACKING DC-DC CONVERTER FOR SOLAR PHOTOVOLTAIC SYSTEM

 

Authors: Dr. R.Ramaprabha, Dr.B.L.Mathur

 

IJAET/ Volume III/ Issue I/ January-March'2012/133-140

ABSTRACT
Partial Shading is one of the major causes of power reduction in Solar Photovoltaic (SPV) Systems. Under partial shaded conditions the non-linear Power-Voltage characteristics of SPV system gets more complex with multiple peaks. This paper describes a design and validation of a Maximum Power Point Tracking (MPPT) capable of tracking the true Global Maximum Power Point (GMPP) in the presence of other local maxima. The proposed system tracks Maximum Power Point (MPP) without the use of costly components such as signal converters and microprocessors thereby increasing the compactness of the system. It significantly increases the efficiency of power conversion by allowing solar panels to operate at their ideal operating point apart from of changes in load and illumination. The converter switches between an algorithm which tracks the local maximum and a global search algorithm for ensuring that the converter is operating at the proper global maximum. Simulation studies have been carried out using LTspice.

DESIGN AND PROTOTYPING OF CAM BASED POWER PRESS

 

Authors: Mr. Prabhavalkar M.S., Prof. Ghewade D.V., Mr. Raut A.S., Mr. Dhole N.S.

 

IJAET/ Volume III/ Issue I/ January-March'2012/141-143

ABSTRACT
Presses are generally employed in mass production of identical components. Basically, the process of press working consists of shearing out and then plastically working the metal to the desired finished shape and size through a few quick strokes under heavy loads. It is therefore, a metal working process, and differs from the metal cutting process in the machine tools employed in metal cutting work may be used for producing different shapes and sizes of articles by the same set of tools, whereas in press working each new dissimilar component requires a new set of tool. Out of large number of industries, involving the use of presses, the telephone industry, automobile industry, aircraft industry, electrical goods manufacturing and radio industry may be cited as a few examples.
At present, the power press tools consist of drive mechanisms like: crank, eccentric shaft, rack and gear, screw, toggle drive, knuckle joint etc. But, it has been observed that cam as a drive mechanism has not been implemented in power press in industries till date. So keeping in view the various applications of power press with cam as a drive mechanism we have carried out the design of double cam operated power press. The work have expected results like, the multiple strokes in one revolution of electric motor, low power consumption because of multiple strokes in one revolution of electric motor, high production rate and low maintenance.

IMPACT OF AJAX IN WEB APPLICATIONS

 

Authors: Dr. SamratVivekanand Omprakash Khanna, Mr Mijal Mistry

 

IJAET/ Volume III/ Issue I/ January-March'2012/144-145

ABSTRACT
This paper represents how to reduce the traffic in web applications and to make high interactive web applications with rich client interface. There are several highly interactive web applications and web sites. Those sites faced a common problem of page refreshing and data trafficking. Sometimes user has to wait for long time to reload the page. This paper also presents the interactive responsiveness from the server as well as from user’s perspective. To avoid such kind of situation AJAX came to a rescue. AJAX has several advantages and impact of web applications compares to standard web applications and it also has several features which overpass the normal web applications. It also saves the round trip to the server.

METHANOLYSIS OF CASTOR OIL FOR PRODUCTION OF BIODIESEL

 

Authors: Penugonda Suresh Babu, Venkata Ramesh Mamilla

 

IJAET/ Volume III/ Issue I/ January-March'2012/146-148

ABSTRACT
This paper represents method of producing biodiesel from castor oil (treated with mineral turpentine oil) by transesterification of the crude oil with methanol in the presence of NaOH as catalyst. Important fuel properties of methyl esters of biodiesel produced from castor oil like viscosity, flash point, fire point, calorific value etc., was found out and compared to the properties of Indian standard biodiesel.

CONCEPT OF INDEPENDENT INSTALLER

 

Authors: Dr. Khanna SamratVivekanand Omprakash, Mrs Kunjal Dutta

 

IJAET/ Volume III/ Issue I/ January-March'2012/149-152

ABSTRACT
The paper represents how the concept of Independent Installer used in the Industry. The fundamental structure of the system is evident from its design, installation and management of the system. The systems have to be designed and installed in such a way to fulfill the needs of the particular customer’s environment, while ensuring that the full performance of the products is realized. There are many stories from the industry about poor installation. Customers therefore need to consider the installer tool when selecting the installed solution that they will use day by day. A key benefit of the PIIX (Platform Independent Installer in XML) is the consistency and less overhead on the system. This enables enterprises towards saving costs and overheads. As the software market continues to mature throughout the world two trends are apparent relating to installation. Firstly end user customers, consultants are increasingly mindful of the demands made on installers for increased quality in the field. Secondly, installation companies in an over populated market need to be able to differentiate themselves and demonstrate to customers their experience and expertise. These together with the challenge of offering increasingly higher quality to customers are the basis behind this concept in this paper presentation.

SHALE GAS: FUEL OF THE FUTURE-A REVIEW

 

Authors: P.B.Pawar, S.B.Taware, A.A.Ranaware, S.M.Taware

 

IJAET/ Volume III/ Issue I/ January-March'2012/153-155

ABSTRACT
Shale gas is form of natural gas and it is found in shales i.e.fine grained sedimentory rocks. Around 32,500 trillion cubic ft (tcf) of shale gas reserves have been identified globally. According to oilfield services provider Schlumberger, India has shale gas reserves of between 300 and 2,100 trillion cubic feet (tcf). Shale formations have been observed in the Damodar basin, Jharkhand and West Bengal. India will have shale gas policy in place by next year and the blocks are expected to be allocated in 2012. Technological advancements on horizontal drilling and hydraulic fracturing (hydro fraccing) have made it possible to exploit these unconventional gas deposits.

APPLICATION OF GOOGLE API AND KML TO DRAW PATH FROM SOURCE TO DESTINATION ON ANDROID PHONE

 

Authors: Dr. Khanna SamratVivekanand Omprakash, Mr Pritesh Patel

 

IJAET/ Volume III/ Issue I/ January-March'2012/141-143

ABSTRACT
A study was conducted to find the effect of composite edible coating on the physicochemical properties of tomatoes stored at ambient conditions. The parameters evaluated were titratable acidity, pH, vitamin C content, TSS and total and reducing sugars. The effect of coating was found statistically significant for all parameters except pH for coated samples as compared to control sample. The effect of storage period was also evaluated for same parameters and it was observed that the storage period affects significantly on quality parameters of tomatoes.

EMERGING APPLICATIONS OF FUZZY LOGIC IN CHEMICAL PROCESS SYSTEMS

 

Authors: G. Vijayaraghavan, M. Jayalakshmi

 

IJAET/ Volume III/ Issue I/ January-March'2012/159-163

ABSTRACT
Fuzzy logic is a modeling method intended to formalize a mathematical approach to deal with these complex or ill-defined systems and is, therefore, a relatively new mathematical paradigm. Its basis is a consideration of overlapping sets and the definition of operators to manipulate these sets. According to Zadeh and Mamdani, fuzzy logic could be used to develop operational automatic control systems. The application of fuzzy logic techniques has been increasing rapidly in the last few years. Fuzzy logic is used in target tracking, pattern recognition, robotics, power systems, controller design, chemical engineering, biomedical engineering, vehicular technology, economy management and decision making, aerospace applications, communications and networking, electronic engineering, and civil engineering. Chemical engineering has employed fuzzy logic in the detection of chemical agents as well as gas recognition. It has also been applied to processes control, batch distillation column, separation process, and kinetics. In this paper, we discuss how the development of intelligent systems can be done. Also, how the fuzzy set theory and fuzzy logic can be used to develop knowledge – based expert systems in Chemical Engineering.

ACCESSING INFORMATION ON MOBILE CLIENT FROM MOBILE & WEB SERVER WITH INTERNET FROM REMOTE PLACE

 

Authors: Dr. Khanna SamratVivekanand Omprakash

 

IJAET/ Volume III/ Issue I/ January-March'2012/164-166

ABSTRACT
This paper represents how different mobile client users can access information from mobile server and web server through internet. To access a web application running on a mobile server phone, equipped with a standard operator SIM, from any browser on the Internet, at any time User may capture data from mobile and can sent information to the Internet. On other end by connecting on dynamic website online user can connect to the mobile server & operates the features of mobile from Internet via web application. Developing mobile server application for a particular mobile operating system like symbion or windows operating system. Installation of a particular client/server application on mobile can be done. The concept of client/server 3 Tier application is used. Client applications can be installed on the different mobile , so client can connect to the mobile server application with the help of internet. Client can access the features of mobile server phone and access the central database server with the desired rights. Client can receive & send information to the web and mobile server. Fetching information for particular client for doing operation from web server. A central database server is hosted on the real IP with particular domain name. A web hosting server is based on windows with IIS and apache. It supports web applications with database for storing the web pages. An information can be easily access from the webpage to the mobile server by connecting through internet using authentication and authorization. Mobile client can easily access the information from web page and connects to mobile server for doing certain operation relating to mobile device. Capturing & transferring images, video and messages currently on web server by just taking from mobile to the web and can send information to the other users with mobile server. Mobile client gets both the benefits of web server as well as mobile server for exchanging the information. The concept of operating certain functions on web and mobile can be done with this type of facility with Internet by providing real IP on net with ISP for web hosting server. The concept of two server 1.Mobile and 2.Web Server is used for the clients to access the functionality of mobile and web. Attempt of failure of any server due to internet connection or simcard will restricts its operations on mobile but not on web server. Mobile applications retrieves the required data information in certain time interval by connecting with the web server.

HIERARCHICAL MPLS TO ENHANCE SPEED

 

Authors: Ankur Dumka

 

IJAET/ Volume III/ Issue I/ January-March'2012/167-169

ABSTRACT
Multiprtocol label switching (MPLS) uses label table to solve the routing table lookup at each instance or at each hop of the MPLS network, it uses its own table known as label table for forwarding of packets according to label rather than IP address. Label table is smaller than IP table so forwarding of packets is done faster as compared to routing table lookup.
Here a more novel approach is used in a MPLS network by using a hierarchical MPLS network which further shortens the label table and make the packet forwarding more faster than the available algorithm. In hierarchical approach the table become shorter and to find a path will become easier and faster.

AN INVESTIGATION INTO THE MACHINING CHARACTERISTICS OF NIMONIC 80A USING CNC WIRE-EDM

 

Authors: Goswami Amitesh, Kumar Jatinder

 

IJAET/ Volume III/ Issue I/ January-March'2012/170-174

ABSTRACT
Wire Electrical Discharge machining process is extensively used in industry to manufacture geometrically complex, hard material parts that are extremely difficult to machine by conventional machining process. The present work investigates the influence of machining parameters on cutting speed and material removal rate for machining of Nimonic 80A with brass wire as tool electrode during wire electrical discharge machining process. Investigation indicated that cutting speed (CS) increases with increase in pulse on time (Ton) and peak current (IP) decreases with increase in pulse off time (Toff) and spark gap set voltage (SV) and metal removal rate (MRR) increases with increase in pulse on time (Ton) and IP while decreases with increase in pulse off time (Toff) and spark gap set voltage (SV).

COMPENSATION BY TCSC IN OPEN LOOP TRANSMISSION SYSTEM

 

Authors: Sunita Tiwari, S.P. Shukla

 

IJAET/ Volume III/ Issue I/ January-March'2012/175-179

ABSTRACT
The FACTS controllers clearly enhance power system performance, improve quality of supply and also provide an optimal utilization of the existing resources. TCSC has been proposed to enhance the power transfer capability by changing the reactive power distribution in the power system. This paper discusses the TCSC’s power enhancement capability. Authors have also discussed the effect of TCSC on steady state and transient stability. A transmission line model equipped with TCSC that is suitable for power transfer capability and transient stability analysis is proposed. This model is tested in a simple transmission system for open loop control system including all the key elements relevant to system performance. Thyristor controlled series capacitors (TCSC) in closed loop system have been widely studied by many researchers but in this model the effect of TCSC in open loop control system is discussed. The simulation result shows that TCSC is capable of increasing power level and improving transient stability.

IMAGE WATERMARKING FOR IMAGES CAPTURED BY DIGITAL CAMERA

Authors: Poonam N. Mahamuni, Prof. R.T. Patil, Mr. S. P. Adure

 

IJAET/ Volume III/ Issue I/ January-March'2012/180-182

ABSTRACT
The growth of computer networks has boosted the growth of the information technology sector to a greater extent. Thus the digital information which includes images, videos, text etc is readily available to anyone. At the same time care is taken to prevent the unauthorized use of the images commercially. To satisfy these need owners moved towards watermarking. In his paper the embedding technique for watermarking is presented based on LSB & DCT transforms. Here we classify the techniques based on different domains in which data is embedded. The survey is limited to images only.  process parameters of abrasive jet machining is presented

IMPROVEMENT IN QUALITY DIMENSIONS OF SHELL AND TUBE TYPE HEAT EXCHANGER BY USING DESIGN SOFTWARE

 

Authors: Prof. J.S. Bagi, Prof. V.N.Mane, Dr. Arvind B. Datye

 

IJAET/ Volume III/ Issue I/ January-March'2012/183-188

ABSTRACT
Mechanical industries have gone through the significant changes in last decade. Competition has increased dramatically. Customers focus on product quality, product delivery time and cost of product. Because of these, a company has to develop design and 3D modeling software to meet the requirement of the customers. Normally, the heat exchanger design calculations are required with assumed data. Iterative procedure is used to correct the assumed data to optimum solution. But it requires lot of calculation work which is time consuming. The computer software will play important role to eliminate the problem of iterative calculations and 3D modeling of heat exchangers. To design for better quality , it is necessary first what quality means and how it is measured. A product or process that is reliable, and that performs its intended function is said to be a quality product. The degree to which something meets or exceeds the expectations of its consumers.
This paper describes how improvement in quality dimensions of Heat Exchangers takes place by using design software.

THE MOST EFFICIENT WASTE HEAT RECOVERY DEVICE: A GAMMA TYPE STIRLING ENGINE

 

Authors: Mohsin J Dadi*, Imran M Molvi, Prof. Alpesh V Mehta

 

IJAET/ Volume III/ Issue I/ January-March'2012/189-195

ABSTRACT
Recent trend concerns about the best ways of using the deployable sources of energy in to useful work in order to reduce the rate of consumption of fissile fuel as well as pollution. There are different ways to recover the heat available with the waste or rejected heat from different sources. Out of all the available sources, Gamma type Stirling engine is one of the most efficient devices to convert waste heat in to useful work.
This review paper includes history, applications and use of Gamma type Stirling engine in brief. The ultimate aim is to design and develop the Gamma type Stirling engine with the material available easily and it should run at lowest temperature difference with highest efficiency.

A GLOBAL PROBLEM OF ARSENIC IN DRINKING WATER & ITS MITIGATION- A REVIEW

 

Authors: Manoranjan Kumar Singh & Anil Kumar

 

IJAET/ Volume III/ Issue I/ January-March'2012/196-203

ABSTRACT
Heavy metals contamination in drinking water is a serious problem throughout the world. Especially, arsenic is a global problem in drinking water affecting countries of all five continents. The most serious damage to health has been reported from Bangladesh and West Bengal, India. UNICEF estimated that 12 million people in Bangladesh were drinking arsenic contaminated water in 2006, and the number of people showing symptoms of arsenicosis was 40,000, but could rise to one million (UNICEF 2006). Arsenic contaminated groundwater is used in many countries on all continents as drinking water. Hundreds of millions of people, mostly in developing countries, daily use drinking water with arsenic concentrations several times higher than the World Health Organization recommended limit of 10μg/ L. The world water resource is diminishing, and one in every five persons does not have access to clean drinking water (BBC News, 2009).Arsenic contamination is largely a natural phenomenon and their preventive measures may be public awareness campaigns, Mass media for publicizing the problem, identifying the arsenic contaminated sources, sharing arsenic free point sources and removal of arsenic at house hold level and treatment plant installed at community level. This paper highlights the effect of arsenicosis on human health and its ways of mitigation.

FUZZY LOGIC AND NEURAL NETWORK APPROACH TO SHORT TERM THERMAL UNIT COMMITMENT

 

Authors: Maninder Kaur, Rajdeep Kaur Dhaliwal

 

IJAET/ Volume III/ Issue I/ January-March'2012/204-207

ABSTRACT
A work on neural network and fuzzy logic based technique for solving the problem of unit commitment in any electric utility is presented in this paper. The effectiveness of economic dispatch is well understood when the objective is to schedule the committed generators to meet the load, maintain voltages and frequency within prescribed tolerances and minimize operating cost without unduly stressing the equipment. The objective of this paper is to commit the units with the AI techniques back propagation neural network and Fuzzy logic without violating the constraints and to compare the results in order to find the best suitable method. A three-unit system is considered as an example and the above mentioned values were computed.

ARGON IMPLANTATION EFFECTS IN CdS THIN FILM

Authors: Prof. M. N. Parmar, Mr. C. D. Patel,    Prof. Abhijit Kulshrestha        

 

IJAET/ Volume III/ Issue I/ January-March'2012/208-212

ABSTRACT
Argon ion implantation effects on the films prepared by vacuum evaporation were studied using different techniques like optical absorption, X-ray diffraction, Raman spectroscopy and positron annihilation spectroscopy. Some of the salient features discussed in detail include the reduction in the optical band gap due to implantation, variation in the intensity of the Raman peak during irradiation and post irradiation annealing, positron beam studies on irradiated CdS films etc.

HYBRID (BONDED/BOLTED) COMPOSITE SINGLE-LAP JOINTS AND ITS LOAD TRANSFER ANALYSIS

 

Authors: Noah M. Salih, Mahesh J. Patil

 

IJAET/ Volume III/ Issue I/ January-March'2012/213-216

ABSTRACT
The mechanism of load transfer in hybrid joints is complicated because of differences among alternate load paths stiffness. The load distribution in hybrid composite single-lap joints has been predicted through use of a three-dimensional finite element model including the effects of bolt–hole contact and non-linear material behavior. The effect of relevant joint design parameters on the load transferred by the bolt have been investigated through a finite element parameter study. Joint configurations where hybrid joining can provide improved structural performance in comparison to adhesive bonding have been identified. In this project we focus on the load transfer in hybrid (bonded/bolted) joint single lap and also investigate the effects of material properties, tensile load , adhesive thickness, bolt diameter and overlap region.

ELECTROCHEMICAL CHARACTERIZATION OF BIOMEDICAL TITANIUM ALLOY Ti-35Nb-7Zr-5Ta

 

Authors: G. V. S. Nageswara Rao, M. Hanumantha Rao, B. V. Appa Rao, P. K. Sagar

 

IJAET/ Volume III/ Issue I/ January-March'2012/217-222

ABSTRACT
The β titanium alloy Ti-35Nb-7Zr-5Ta (TNZT) has been recently developed as a new implant material. This alloy is composed of non-toxic elements with low modulus of elasticity and is ideal for implant applications. The aim of present study was to evaluate the corrosion resistance of this alloy in an artificial physiological solution. In the present work, the electrochemical behavior of TNZT alloy has been studied using simulated human body environment. Hank’s solution was used for simulating body fluid conditions. This evaluation was carried out through potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) tests, which were conducted at 2520C. The electrochemical behaviour of commercially pure titanium (CPT) was also evaluated for comparison purpose. The results indicated stable passive polarization behaviour for TNZT alloy. Corrosion rates were determined by Tafel extrapolation method. The corrosion rate of TNZT alloy was comparable but lower than that of CPT. However, TNZT alloy exhibited less noble breakdown potential and passive range compared to CPT. The passive current density of TNZT alloy is also observed to be lower than that of CPT.

ANALYSIS AND DESIGN OF E SHAPED PATCH ANTENNA IN X BAND

 

Authors: Alka Verma

 

IJAET/ Volume III/ Issue I/ January-March'2012/223-224

ABSTRACT
In this paper we have analyzed and designed a E shaped microstrip antenna in X band The proposed antenna designed is able to operate at 8.6 Ghz and thus the antenna becomes a necessity for many applications in recent wireless communications, such as Radar, Microwave and space communication .The E shaped patch antenna offers a increased bandwidth of 13 % as compared to rectangular patch antenna (3.6%) operating in the range of 8-9 GHz .The design of E- Shape patch antenna has been completed using IE3D software. The return loss are observed followed by the radiation pattern. These results are obtained through MATLAB which are later on verified using IE3D software v 14.4.

BUBBLE COLUMN REACTOR-A PATHBREAKING AND EFFECTIVE TOOL FOR TREATING DYE EFFLUENTS FROM TEXTILE INDUSTRIES BY OZONATION AND NANOFILTRATION

 

Authors: Sukanchan Palit

 

IJAET/ Volume III/ Issue I/ January-March'2012/225-229

ABSTRACT
Bubble column reactors are extensively used as multiphase flow reactors and reactors in chemical, biochemical and petrochemical industries. Till recently its extraordinary potential is exploited in a far-reaching, efficient and effective manner in treating textile dye effluents, thus opening the window of knowledge, erudition and innovation in the field of application of environmental engineering technology and science. These reactors provide several advantages and disadvantages during operation and maintenance such as high heat and mass transfer rates, compactness and low operating and maintenance costs. Textile waste effluents are one of the wastewaters that are difficult to degrade by primary and secondary treatment procedures and they contain recalcitrant compounds. So the need of an effective tool as a tertiary treatment process-ozone-oxidation or advanced oxidation process for treating textile dye effluents in a bubble column reactor. The aim of our study is to gain understanding and unfold the hidden secrets of the tool of bubble column reactor in degrading textile dye effluents with the help of ozonation and nanofiltration. In this sense, advanced oxidation processes are possibly one of the most effective methods for treating wastewater containing organic products(effluents from chemical and agrochemical industries, the textile industries , paints etc.).Nanofiltration is a next generation science and next generation technology. So our aim is to analyse both ozonation and nanofiltration.
Research work will be done on the dependence of pH and oxidation-reduction potential on the dye degradation and dye conversion with the help of ozonation. Our aim will be towards the degradation of different dyes- azo or anthraquinone dyes. A design of a unique bubble column reactor will be our unfinished vision. It will open up a new era and a wide domain of environmental engineering science.

DEEPER AND EXTENDED VOLTAGE SAG MITIGATION BY DYNAMIC VOLTAGE RESTORER INTERFACED WITH ULTRACAPACITOR

 

Authors: Sachin V. Rajani, Dr. R.C. Jha, Prem Prakash

 

IJAET/ Volume III/ Issue I/ January-March'2012/230-233

ABSTRACT
Power quality is one of major concerns in the present era. It has become important, especially, with the introduction of sophisticated devices, whose performance is very sensitive to the quality of power supply. Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure of end use equipments. One of the major problems dealt here is the Voltage sag. To solve this problem, custom power devices are used. One of those devices is the Dynamic Voltage Restorer (DVR), which is the most efficient and effective modern custom power device used in power distribution networks. Its appeal includes lower cost, smaller size, and its fast dynamic response to the disturbance. This paper is focused on integration of DVR with Ultracapacitor (UC). The paper highlights the limitations of conventional DVR which can be rectified with DVR+UC implementation. MATLAB/Simulink model of DVR with UC is done and the simulation results also verify its superiority over conventional DVR. The detail modeling of Ultracapacitor is also shown and the experimental and simulation results are found identical.

OPTIMUM PARAMETERS FOR REACTIVE EXTRACTION OF LACTIC ACID BY USING DIETHYL ETHER AS A DILUENT

 

Authors: Hussein Salih Hussein, S.N.Shinde

 

IJAET/ Volume III/ Issue I/ January-March'2012/234-236

ABSTRACT
The reactive extraction of Lactic acid is carried out by using tri-n-butyl phosphate (TBP) as an extractant dissolved in diethyl ether and the PH of the aqueous solution can be adjusted by using NaOH . The extraction efficiency is calculated in terms of distribution coefficient (KD) and degree of extraction (E). Where the distribution coefficient and degree of extraction maximize by adjusting the pH of aqueous phase at range between 2–4. Chemical equilibrium experiments have been carried out to investigate the effect of temperature on the extraction efficiency of tri-n-butyl phosphate (TBP) dissolved in di ethyl ether as well as on the equilibrium extraction constant. It was found that distribution coefficient, KD, decreased with increasing the temperature from 25–60°C . Where the optimum temperature and pH is found 25°C temperature and pH range is 2 – 4.

INFORMATION TECHNOLOGY TOOLS IMPROVING SUPPLY CHAIN MANAGEMENT PRODUCTIVITY IN FOOD PROCESSING INDUSTRIES

 

Authors: Dr. A. G. Matani, M. S. Tripathi, Pallavi Matani

 

IJAET/ Volume III/ Issue I/ January-March'2012/237-238

ABSTRACT
Inventory reduction is a vital part of becoming a lean organization. Newer technologies such as wireless communication systems and radio frequency identification (RFID) chips are improving the efficiency and effectiveness of inventory management in supply chains. Better communications allows the company to schedule its production and supplier order more efficiently, thus, maintaining lower number of parts. This paper highlights the impact of efficient and effective SCM towards improved inventory management in SMEs towards productivity enhancement.

FACE RECOGNITION USING DISCRETE WAVELET TRANSFORMS

 

Authors: Pallavi D.Wadkar, Megha Wankhade

IJAET/ Volume III/ Issue I/ January-March'2012/239-242

ABSTRACT
Face recognition is emerging as an active research area spanning several disciplines such as image processing, pattern recognition, computer vision and neural networks. Face recognition technology has numerous commercial and law enforcement applications. This paper presents face recognition using discrete wavelet transforms. A range of wavelet decompositions have been implemented in order to investigate the best performances. Haar, 9/7 wavelet filters have been implemented as a part of the proposed algorithms due to their simplicity, suitability and regularity for face recognition using multiresolution approaches.

DIAMETRICAL MESH OF TREE (D2D-MoT) ARCHITECTURE:  A NOVEL ROUTING SOLUTION FOR NoC

 

Authors: Prasun Ghosal*, Sankar Karmakar

 

IJAET/ Volume III/ Issue I/ January-March'2012/243-247

ABSTRACT
Network-on-chip (NoC) is a new aspect for designing of future System-On-Chips (SoC) where a vast number of IP cores are connected through interconnection network. The communication between the nodes occurred by routing packets rather than wires. It supports high degree of scalability, reusability and parallelism in communication. In this paper, we present a Mesh routing architecture, which is called Diametrical 2D Mesh of Tree, based on Mesh-of-Tree (MoT) routing and Diametrical 2D Mesh. It has the advantage of having small diameter as well as large bisection width and small node degree clubbed with being the fastest network in terms of speed. The routing algorithm ensures that the packets will always reach from source to sink through shortest path and is deadlock free.

A NEW APPROACH FOR SOLVING A CLASS OF PURE INTEGER LINEAR PROGRAMMING PROBLEMS

 

Authors: P.PANDIAN AND M.JAYALAKSHM

 

IJAET/ Volume III/ Issue I/ January-March'2012/248-251

ABSTRACT
A new method called variable reduction method for a classes of pure integer linear programming problems in single stage, is introduced which is better than the cutting plane method and the branch bound method. Both easy to understand and to apply, the variable reduction method can serve as an effective tool for solving integer linear programming problems while making the method accessible to managers. The proposed method is illustrated with numerical examples.

MATHEMATICAL MODEL OF OPEN CHANNEL FLOW FOR ESTIMATING VELOCITY DISTRIBUTION THROUGH DIFFERENT SURFACE ROUGHNESS AND DISCHARGE

 

Authors: Kaushal Patel

 

IJAET/ Volume III/ Issue I/ January-March'2012/252-253

ABSTRACT
The present paper describe the hydraulic model, testing of various important structure of open channel as well as river flow with analytical solution of the flow distribution along the open channel. We have to consider different roughness constant and different flow rate to examine the flow pattern in channel. The modeling approach presented in the paper is motivated from the concept of open channel. This work also help us to predict the velocity profile of open channel flow, this would be applicable for a wide range of Reynolds number by changing the discharge flow rate.

COMPARISON OF NODAL ADMITTANCE AND LOOP IMPEDANCE METHODS FOR SELF EXCITED INDUCTION GENERATOR

 

Authors: Vineet P. Chandran and Shelly Vadhera

 

IJAET/ Volume III/ Issue I/ January-March'2012/254-258

ABSTRACT
The steady-state analysis of self-excited induction generator (SEIG) is done by either of the two methods i.e. nodal admittance and loop impedance. In this paper the mathematical modeling and iterative processes of the two methods have been compared in order to predict the values of the capacitive reactance required for a self-excitation at different operating conditions of load, speed, and frequency. The performance characteristics of SEIG have been studied in Matlab environment.

A SIMULATION STUDY AND ANALYSIS OF JOB RELEASE POLICIES IN SCHEDULING A DYNAMIC FLEXIBLE JOB SHOP PRODUCTION SYSTEM

 

Authors: Karuna Kumar. G, Dr. Y.V.S.S.S.V. Prasada Rao

 

IJAET/ Volume III/ Issue I/ January-March'2012/259-263

ABSTRACT
This paper presents the analysis of job release policies in scheduling a typical dynamic flexible job shop system. The case of partial flexibility is considered wherein an operation can be executed on three different machines. Each operation can be performed efficiently on the primary machine. The other two alternative machines are also capable of performing the same operation through less efficiently. The job release policies evaluated are immediate release and flow allowance based release. A discrete- event simulation model is developed for describing the working of the system. Scheduling rules are used for machine selection and job scheduling decisions. The performance measures evaluated are mean flow time, standard deviation of flow time, mean tardiness, standard deviation of tardiness, and percentage of tardy jobs. Analysis of simulation results reveal that for the system considered, immediate job release policy provides better overall performance than flow allowance based job release policy.

ANALYSIS OF VARIANCE AND OPTIMIZATION OF SURFACE ROUGHNESS IN CNC TURNING OF EN-8 STEEL BY TAGUCHI METHOD

 

Authors: Sahil Pahda*, Sanjay Mohan Sharma & Navdeep Malhotra

 

IJAET/ Volume III/ Issue I/ January-March'2012/264-267

ABSTRACT
In this paper an optimization for surface roughness has been done by considering the cutting parameters like cutting speed, feed rate and depth of cut. The CNC turning machine is used to conduct experiments and the material being used for experimentation is EN-8 steel with 150 mm length and 35 mm diameter. Taguchi technique has been used for designing and optimization of the experiment. Besides, Minitab 16 software is also being used to conduct ANOVA test to predict the significance level for individual parameter and it has been found that the cutting speed is most significant parameter contributing towards surface roughness followed by depth of cut. Further the results obtained from Taguchi indicated the optimized values contributing as cutting speed 103 m/min, feed 0.06 mm/rev and depth of cut 0.8 mm respectively. The relevance of these results was finally checked by performing confirmatory experiment as suggested by the Taguchi technique.

 

TAGUCHI LOSS FUNCTION AS OPTIMISED MODEL FOR SUPPLIER SELECTION AND EVALUATION

 

Authors: Rajesh Kumar, Rituraj Chandrakar, Anil Kumar, Haldhar Ram Chandrakar

 

IJAET/ Volume III/ Issue I/ January-March'2012/268-270

ABSTRACT
A survey of the literature reveals the fact that there have been continuous efforts to evaluate suppliers by devising numerous methodologies. Some of the literature suggests techniques to combine both cardinal and ordinal preferences during the selection of suppliers. Many of the cases, wherein the fuzzified techniques and ANN methods are used, need to be tested before applying those in real-world supplier selection decisions. Sometimes, use of a cumbersome technique may frustrate the DM as well as managers to adopt the methodology wherein the decision does not seek such complex techniques. So, Taguchi Loss Function has been proposed as a model for supplier selection.

STUDY AND DEVELOPMENT OF COMPRESSED AIR ENGINE-SINGLE CYLINDER: A REVIEW STUDY

 

Authors: Mistry Manish K., *Dr.Pravin P.Rathod, *Prof. Sorathiya Arvind S.

 

IJAET/ Volume III/ Issue I/ January-March'2012/271-274

ABSTRACT
This paper is reports on the review of compressed air engine for the design and development of single cylinder engine which can be run by the compressed air. Current four strokes single cylinder engine (bikes/moped) can be run on the compressed air with a few modifications that are the main objective of the study. Compressed air filled by electricity using a compressor. The electricity requirement for compressing air has to be considered while computing overall efficiency. Nevertheless the compressed air vehicle will contribute to reducing a air pollution and tend to zero pollution level and promoting great environment. Main advantage of this engine is that no hydrocarbon fuel required means no combustion process is take place

STANDARDIZATION OF VENDOR PERFORMANCE INDEX USING ANALYTICAL HIERARCHY PROCESS

 

Authors: Saravanan, B. A., Jayabalan, V., Moshe. J.Aaron, Jesu Antony Xavier, P.

 

IJAET/ Volume III/ Issue I/ January-March'2012/275-279

ABSTRACT
Increase in demanding customers, globalization, accelerated competition, technological advances in the communication of information are leading the firms toward adoption of supply chain management. As purchasing is being a starting point of five echelons in supply chain, more emphasize should be given on supplier evaluation and selection. Moreover purchased parts, components and supplies typically represent 40 to 60 percentages of the sales of its end products. Therefore analysis of the supplier selection process is getting more attention to enhance the SCM concepts. In practice, Vendor Performance Index (VPI), used in supplier evaluation is not found to be with strong technical background. In order to strengthen the technical evaluation, a survey has been carried out in automobile industries of South India, especially in Chennai hub. With this survey, the relative importance and weights of vendor selection criteria were found out using Analytic Hierarchy Process (AHP) and subsequently Vendor Performance Index is standardized. Software has been developed for the purchase managers to evaluate the vendors based on their requirements.

ASSESSMENT OF AMBIENT AIR QUALITY STATUS IN URBAN RESIDENTIAL AREAS OF JHANSI CITY AND RURAL RESIDENTIAL AREAS OF ADJOINING VILLAGES OF JHANSI CITY

 

Authors: Saurabh Kumar Yadav, Vinit Kumar, M M Singh

 

IJAET/ Volume III/ Issue I/ January-March'2012/280-285

ABSTRACT
Urban activities create more pollution in comparison to rural activities. This paper assesses the ambient air quality status in urban residential area of Jhansi city and rural residential area of adjoining village of Jhansi city. Two sites under urban residential area and two cites under rural residential area were selected purposively to spotlight an overview of the total air quality of this region. The air quality was assessed based on measuring four air pollutants namely Suspended Particulate Matter (SPM), Respirable Suspended Particulate Matter (RSPM), Oxides of Nitrogen (NOx) and Sulphur di oxide (SO2). In both the areas viz. urban residential and rural residential, the average concentrations of SPM and RSPM exceeded the prescribed limits of Central Pollution Control Board (CPCB) New Delhi. In the urban residential areas the average concentrations of SPM and RSPM were higher than the rural residential areas. Apart from this the SO2 and NOx levels in urban residential areas and rural residential areas remain under prescribed limits of CPCB, New Delhi. The average AQI value of urban residential areas was found higher than the rural residential areas. The urban residential area viz. Shivaji nagar and Veerangana nagar were heavily polluted whereas the rural residential area viz. Kochha Bhavar and Lakara were moderately polluted.

REVIEW OF FINANCIAL CRYPTOGRAPHY

 

Authors:Rani Srivastava

 

IJAET/ Volume III/ Issue I/ January-March'2012/286-289

ABSTRACT
In this paper we propose a financial cryptography as a subset of financial transaction which plays a crucial role in business for privacy and trust management. Trapped between essential banking and cryptography or linking accountant and programmer, there is a serious threat that would result to create Financial Cryptography systems will make simpler or exclude significant disciplines. Financial cryptography is a composite expression for finance and cryptography which funds the use of cryptographic techniques to defend finance related data’s. An anonymous communication is required for financial transaction. The primary use of cryptography for this is to assure privacy and allow anonymous electronic cash. For this, we believe that strong cryptography is legal and readily available. Still in that event, we state that strong cryptography will be used to maintain anonymity only in an extremely restricted subset of financial transactions. In this paper we propose some of the security flaws which are present in internet related business and in 7 layer financial cryptography model. We also explore the some of the properties of transaction system like anonymity, trust, reversibility of original entities, authentication and authorization related issues and how to maintain these properties in scenario of real time system transaction. Finally we will try to provide some practical solutions for a more secure financial cryptography model.

EXPERIMENTAL ANALYSIS OF CRYOGENIC TREATMENT ON COATED TUNGSTEN CARBIDE INSERTS IN TURNING

 

Authors: Shivdev Singh, Dilbag Singh, Nirmal S Kalsi

 

IJAET/ Volume III/ Issue I/ January-March'2012/290-294

ABSTRACT
This research work presents the results of an experimental investigation of cryogenically treated, coated and uncoated tungsten carbide cutting tool inserts in turning of AISI 1040 steel. Three different tungsten carbide inserts coated with aluminum chromium nitride (AlCrN), titanium nitride (TiN) and uncoated WC were taken and treated cryogenically. Experiments were performed to evaluate the cutting forces and tool wear at different machining conditions. ANOVA was performed to identify the effect of the input parameters on response variables. Results indicated that treated TiN coated tools have lower tool wear and cutting forces followed by treated AlCrN coated and treated uncoated tools. It has been observed that cutting forces increased with the increase in feed, depth of cut and decreased with increase of cutting speed in all cases. However Flank wear increased with the increase in depth of cut, cutting speed and feed.

AN OVERVIEW OF HANDOFF TECHNIQUES IN CELLULAR NETWORKS

 

Authors: Amit Singhai, Abhay Upadhyay, Mohan Narbariya, Durgesh Pansary

 

IJAET/ Volume III/ Issue I/ January-March'2012/295-299

ABSTRACT
The continuation of an active call is one of the most important quality measurements in cellular systems. Handoff process enables a cellular system to provide such a facility by transferring an active call from one cell to another. Different approaches are proposed and applied in order to achieve better handoff service. The principal parameters used to evaluate handoff techniques are: Forced termination probability and call blocking probability. Mechanisms such as guard channels and queuing handoff calls decrease the forced termination probability while increasing the call blocking probability. In this paper we present an overview about the issues related to handoff initiation and decision and discuss about different types of handoff techniques available in the literature.

TAGUCHI ANALYSIS OF REPETITIVE CORRUGATION AND STRAIGHTENING FACTORS ON GRAIN SIZE, TENSILE AND HARDNESS BEHAVIOR OF Al SUBJECTED TO SEVERE PLASTIC DEFORMATION

 

Authors: H.S. Siddesha, M. Shantharaja, Suresh R.

 

IJAET/ Volume III/ Issue I/ January-March'2012/300-304

ABSTRACT
Repetitive corrugation and straightening processes are widely used in industries to compensate the high strength metal plates components used in automobiles. The microstructures and mechanical properties in nanostructured Al processed by a new technique, repetitive corrugation and straightening (RCS), were studied using optical microscopy, microhardness tester and tensile machine. Taguchi technique and the analysis of variance (ANOVA) techniques were carried out to investigate the degree of importance of strain rate, number of passes and Al plate thickness. The results indicated that the number of passes has a major influence on the fine-grain refinement, followed by Al plate thickness and strain rate. The combination of the experimental, the Taguchi method, and the ANOVA technique was an effective tool to predict the degree of importance of the RCS parameters on grain size, microhardness and tensile strength of RCS specimens.

WASTE HEAT RECOVERY USING STIRLING ENGINE

 

Authors: Prof. Alpesh V. Mehta*, Rajdevsinh K. Gohil, Jaydeepkumar P. Bavarva, Biren J. Saradava

 

IJAET/ Volume III/ Issue I/ January-March'2012/305-310

 

ABSTRACT
Waste heat is that heat which is generated in a process by way of fuel combustion or chemical reaction, and then dumped into the environment even though it could still be reused for some useful and economic purpose. There exist today worldwide concerns about the best ways of using the deployable sources of energy, and of developing techniques to reduce pollution. This interest has encouraged research and development for re-use of the usually wasted forms of energy.
There are many methods through which waste heat energy can be recovered and utilized. Stirling engines are mechanical devices working theoretically on the Stirling cycle. It uses air, hydrogen, helium, nitrogen or even vapors as working fluids. The Stirling engine offers possibility for having high efficiency engine with less exhaust emissions in comparison with the internal combustion engine. We had manufactured a gamma type sterling engine which operates at high temperature difference. Our ultimate aim is to develop Low Temperature Difference (LTD) Stirling engine and for that modification in existing design is going on.

LOW PRESSURE SEPARATION TECHNIQUE OF BIOGAS INTO CH4 AND CO2 EMPLOYING PDMS MEMBRANE

 

Authors: Swanand Kalambe, Dr. R. S. Sapkal, Dr. V S Sapkal

 

IJAET/ Volume III/ Issue I/ January-March'2012/311-315

 

ABSTRACT
Continuous research has been going on to find out easy and cheap technique for separation of biogas employing membrane technology. Work has been carried out to find the best suited membrane for gas separation with low operational pressure and cost. Membrane gas separation technique is very advantageous as it doesn’t require huge infrastructure for plant set up due to low pressure requirement for the process and availability of membrane at a reasonable cost. This technique has generated immense commercial interest. This paper deals with an advanced separation technique employing poly dimethylsiloxane (PDMS) hollow fiber membrane module. The results clearly show that, PDMS double membrane module in series gave the upgraded methane with 93 % purity and carbon dioxide with 96% purity.

SYNTHESIS OF NEEM BIODIESEL

 

Authors: Sri HarshaTirumala, A.V.Rohit, SivaKrishna.M, Sudipta Saha

 

IJAET/ Volume III/ Issue I/ January-March'2012/316-318

 

ABSTRACT
The increasing industrialization and motorization of the world has led to a steep rise for the demand of petroleum products. Hence, it is necessary to look for alternative fuels, which can be produced from materials available within the country. In this paper, biodiesel performance testing is done in C.I. engine. Biodiesel has been prepared from NEEM oil by mechanical stirring method and comparison also has been made with diesel. The performances of this biodiesels have been tested by the performance parameters like torque, brake power, brake thermal efficiency and brake specific fuel consumption, brake specific energy consumption, exhaust gas temperature, air fuel ratio and emission characteristics like smoke opacity. Performance testing has been performed on 4-stroke, single cylinder, water cooled Kirloskar C.I. engine which is attached by eddy current dynamometer for loading purpose. The results obtained are in favor of biodiesel over diesel oil.

MOBILE BASED INSTITUTE SYSTEM WITH ASSIGNMENT MODULE

 

Authors: Mijal Mistry, Mr. Swapnil Patel, Dr. Dipti Shah

 

IJAET/ Volume III/ Issue I/ January-March'2012/319-320

 

ABSTRACT
In Modern day scenario pointing towards the mobile development and its usage. Mobile usage for institute development is the new scenario for developing countries. It also opens the door for new rooms and new possibilities which can be tackled by using new technologies. .Net technology provides us to develop the application based on mobile, web, windows etc. We here demonstrate the institute based system with assignment submission module for faculty and students. This paper also shows the importance of the mobile development into modern era.

FACE RECOGNITION SYSTEM USING BACK PROPAGATION ARTIFICIAL NEURAL NETWORKS

 

Authors: N. Revathy, T. Guhan

 

IJAET/ Volume III/ Issue I/ January-March'2012/321-324

 

ABSTRACT
The problem in face recognition is to find the best match of an unknown image against a database of face models or to determine whether it does not match any of them well.
In this method, we use back propagation neural network for implementation. It is an information processing system that has been developed as a generalization of the mathematical model of human recognition.
The function of a neural network is to produce an output pattern when presented with an input pattern. The back propagation type of neural network is a feed forward system with training input pattern and weight adjustment with the associated error. The input neurons receive input signal and propagates into each hidden neuron, which again computes the activation to obtain the net output. This face recognition system is implemented using a MATLAB software package. In this we used the neural networks tool box in matlab. We found the transformation for different inputs and compared with unknown face that the given face is in database or not.

FACTORS OF PATHFINDING FOR IMPROVING PERFORMANCE

 

Authors: Mr. Pranavkumar Pathak, Mijal Mistry, Dr. Dipthi Shah, Ms. Vaishalibahen Pathak, Abu Sarwar Zamani

 

IJAET/ Volume III/ Issue I/ January-March'2012/325-326

 

ABSTRACT
This paper presents a classification of the factors that influences the performance of path finding techniques. This includes the dynamics of the game, the geometry of the players and the environment, the (un) predictability of movement, kinematic and temporal restrictions, interaction rules, and real-time performance. The purpose of this classification is the help developers identify the complexity of the task before choosing a certain approach.

ANALYZING AND DETECTING PHISHING WEBPAGES WITH VISUAL SIMILARITY ASSESSMENT BASED ON EARTH MOVER’S DISTANCE WITH LINEAR PROGRAMMING MODEL

 

Authors: N. Revathy, T.Guhan

 

IJAET/ Volume III/ Issue I/ January-March'2012/327-330

 

ABSTRACT
Phishing is an emerging type of social engineering crime on the Web. Most phishers initiates attacks by sending emails to potential victims. These emails lure users to access fake websites, and induce them to expose sensitive and/or private information. The rapid development and evolution of phishing techniques pose a big challenge in Web identity security for computer science researchers in both academia and industry. Advanced counter measures are required in urgency. All phishing attacks spoof users from the visual level and semantic level, i.e., they make the appearances of web pages look similar to the real ones and make the web links and web page contents semantically related to the real ones. In this work, Earth Mover’s Distance (EMD), is used with linear programming model to assess the visual features’ similarity. The retrieved web pages are converted into images and EMD is used to calculate their similarities to the protected web pages.

AN ONTOLOGICAL REPRESENTATION IN HEALTHCARE DOMAIN

 

Authors: Mr. Mijal Mistry, Mr. Pritesh Patel, Dr. Dipti Shah

 

IJAET/ Volume III/ Issue I/ January-March'2012/331-333

 

ABSTRACT
This paper presents semantic web importance and how it useful into healthcare domain. Sometimes it happens that we can not able to retrieve the desired search result from the values we have passed. This paper gives the idea about how we can make the search efficiency using the semantic web. When any search is performed there are some unwanted results also appear, for eliminating these unwanted results semantic web is useful. Ontological representation of semantic web is useful for solving this problem. This paper shows the different classes and properties have been created using protégé tool and how it can be used as semantic web. Information into web represents into the meta text or meta data form which is used for indexing and retrieving information when any query supplied. This paper also represents the information into XML and RDF form which is used into web for query and retrieval purpose in HealthCare. It is one of the important domains where resourceful and faster retrieval of data is required and this paper shows how to achieve it.

STUDY ON DRAINAGE RELATED PERFORMANCE OF FLEXIBLE HIGHWAY PAVEMENTS

 

Authors: Rokade S, Agarwal P.K. and Shrivastava R

 

IJAET/ Volume III/ Issue I/ January-March'2012/334-337

 

ABSTRACT
Water in the pavement system can lead to moisture damage, modulus reduction, and loss of strength. In the past, the approach taken by state agencies has focused on preventing water from entering the pavement, providing adequate drainage to remove it quickly, or building the pavement strong enough to resist the combined effect of vehicle loads and water, thus presumably reducing the detrimental effects of water on pavements. The drainage design criteria used in the past have been based on the assumption that both the flow of water through pavements and the drainage of pavement layers can be represented with saturated flow assumptions. However, full saturation of pavement systems can occur only under very specific circumstances, when positive total heads are present (e.g., surface ponding, etc.) and distributed in such a manner that saturation of the pavement system is reached. These detrimental effects can be reduced by preventing water from entering the pavement, providing adequate drainage to remove infiltration, or building the pavement strong enough to resist the combined effect of load and water. Pavement service life can be increased by 50% if infiltrated water can be drained without delay. Similarly, pavement systems incorporating good drainage can be expected to have a design life of two to three times that of undrained pavement sections. This paper gives an analysis of drainage related performance of flexible pavements.

SHEAR STRENGTHENING OF RC BEAMS USING CFRP

 

Authors: Patel Mitali R, Dr. R.K. Gajjar

 

IJAET/ Volume III/ Issue I/ January-March'2012/338-342

 

ABSTRACT
CFRP and steel plates are adopted since years as some of the popular materials for strengthening of structural elements such as beams and columns. There have been a series of studies carried out in past for shear strengthening of reinforced concrete beams using various mechanisms. The response of such strengthened structural elements is found to be quite satisfactory as compared to non-strengthened structural elements. De-lamination is a major issue faced while strengthening any structural member using CFRP. De-bonding occurs in regions of high stress concentration which are often associated with material discontinuities and with presence of cracks. However, this can be avoided, if strengthening is done after proper understanding and analysis of the problem. This paper aims at highlighting the method for strengthening of reinforced concrete beam in flexure, shear and overcome CFRP de-bonding problem in order to achieve enhanced performance in flexure and shear along with preventing the failure of member against de-lamination.

DESIGN MODIFICATION FOR FILLET STRESSES IN STEAM TURBINE BLADE

 

Authors: Tulsidas. D*, Dr. Shantharaja. M, Dr. Kumar. K

 

IJAET/ Volume III/ Issue I/ January-March'2012/343-346

 

ABSTRACT
The large variety of turbo-machinery blade root geometries used in industry prompted the question if an optimum geometry could be found. An optimum blade root was defined, as a root with practical geometry which, when loaded returns the minimum fillet stress concentration factor. The present paper outlines the design modification for fillet stresses and a special attention is made on SCF of the blade root (T-root) which fails and to guarantee for safe and reliable operation under all possible service conditions. Finite Element Analysis is used to determine the fillet stresses and Peterson’s Stress Concentration Factor chart is effectively utilized to modify the blade root. The root is modified due to the difficulty in manufacturing the butting surface of the tang which grips the blade to the disk crowns having small contact area.

COMBINE EFFECT OF SILICA FUME AND STEEL FIBER ON MECHANICAL PROPERTIES ON STANDARD GRADE OF CONCRETE AND THEIR INTERRELATIONS

 

Authors: Dasari Venkateswara Reddy* Prashant Y.Pawade**

IJAET/ Volume III/ Issue I/ January-March'2012/361-366

 

ABSTRACT
The present investigation carried out on concrete due to the effect of silica fume with and without steel fibers on Portland Pozzolona cement. In this study we used concrete mixes with Silica Fume of 0%, 4%, 8%and 12%, with addition of crimped steel fibers of diameter 0.5 mm Ø with a aspect ratio of 60, at various percentages as 0%, 0.5 %, 1.0 % and 1.5 % by the volume of concrete on M35 grade of concrete. The effect of mineral admixture (silica fume) as cement replacement material with and without steel fibers on mechanical properties were analyzed and compared with normal concrete. In comparison, with normal concrete the replacement of 4%, 8% and12% cement by silica fume showed 6.26%, 15.84% and 11.45% increase in compressive strength at 28 days of curing. The proposed model was found to have good accuracy in estimating relationship at 28 days and 90 days Compressive strength with Flexural Strength of concrete.

APPLICATION OF ROSGEN CLASSIFICATION OF RIVERS TO AN INDIAN RIVER – A CASE STUDY

 

Authors: Rafid Zainel Ezzat, Ravindra A. Oak

 

IJAET/ Volume III/ Issue I/ January-March'2012/367-370

 

ABSTRACT
Studies were carried out to investigate the classification system for the natural rivers. ROSGEN channel classification system was adopted for the studies. According to ROSGEN classification system, the morphologically similar streams for the given reaches are divided into seven main stream categories, like the entrenchment ratio, gradient of the stream, width/depth ratio, and sinuosity, etc. Within each of the main category, six additional types are delineated by the bed and bank material, starting from bedrock to silt/clay. Rosgen system of analysis was used to decide the classification of river Krishna in the reach downstream of Dhom Dam to Khodshi weir, located near Karad town (Maharashtra). Four cross sections, located within this reach, were analysed to evaluate this reach of river according to Rosgen classification system.
Inquiries indicated that fundamental characteristics of Krishna River found in this reach matched very well with those analysed according to ROSGEN system of analysis. However, the effects of construction of dam in the upstream were not sensed in the analysis. It is felt that further studies would be required before applying ROSGEN method of analysis to Indian Rivers.

VIBRATION ANALYSIS OF CRACKED BEAM

 

Authors: S.P. Mogal, Dr. R.K. Behera, S.Y. Pawar

 

IJAET/ Volume III/ Issue I/ January-March'2012/371-377

 

ABSTRACT
In the present study, vibration analysis is carried out on a cantilever beam with two open transverse cracks, to study the response characteristics. In first phase local compliance matrices of different degree of freedom have been used model transverse cracks in beam on available expression of stress intensity factors and the associated expressions for strain energy release rates. Suitable boundary conditions are used to find out natural frequency and mode shapes. The results obtained numerically are validated with the results obtained from the simulation. The simulations have done with the help of ANSYS software. It is verified from both computational and simulation analysis that the presence of crack decreases the natural frequency of vibration. The mode shapes also changes considerably due to the presence of crack.
Feed-forward multi-layer neural networks trained by back-propagation are used to learn the input (the location and depth of a crack)-output (the structural eigenfrequencies) relation of the structural system.

STUDIES ON SHAPE MEMORY ALLOYS –A REVIEW

 

Authors: Gupta, Parbin K, P Seena, Dr. Rai, R. N.*

 

IJAET/ Volume III/ Issue I/ January-March'2012/378-382

 

ABSTRACT
Shape memory alloys (SMAs) are metallic systems that "remember" their original shapes. These alloys undergo martensitic phase transformations because of applied thermo mechanical loads and are capable of recovering permanent strains when heated above a certain temperature. What makes SMAs remarkably different from other materials are primarily the shape memory effect (SME) and pseudo elasticity, which are associated with the specific way the phase transformation occurs. SMAs are useful for such things as actuators, which are materials that "change shape, stiffness, position, natural frequency, and other mechanical characteristics in response to temperature or electromagnetic fields”. This paper on “shape memory alloys” carries out simplified study of the crystallographic structures/ transformation of SMAs, general characteristics, working principles, commonly used alloys, and applications. The potential uses for SMAs have broadened the spectrum of many scientific fields and the study of the history and development of SMAs can provide an insight into a material involved in cutting-edge technology.

STUDY OF DIFFERENT ATTACKS IN MANET WITH ITS DETECTION & MITIGATION SCHEMES

 

Authors: Himadri Nath Saha, Dr. Debika Bhattacharyya, Dr. P. K.Banerjee, Aniruddha Bhattacharyya, Arnab Banerjee, Dipayan Bose

 

IJAET/ Volume III/ Issue I/ January-March'2012/383-388

 

ABSTRACT
In mobile ad-hoc network (MANET) security is a challenging issue due to its open nature, infrastructure less property and mobility of nodes. In designing a new security mechanism for mobile ad hoc networks, one must consider the attacks variations as well as the characteristics of the attacks that could be launched against the ad hoc networks and existing detection and mitigation schemes.. The discussions of these four aspects are summarized in this paper. This paper also classifies several common attacks against the ad hoc networks routing protocols based upon the techniques that could be used by attackers to exploit routing messages.

DISCRETE WAVELET TRANSFORM BASED SPECTRUM SENSING IN COGNITIVE RADIOS USING EIGEN FILTER

 

Authors: Varadharajan. E, Rajkumari. M

 

IJAET/ Volume III/ Issue I/ January-March'2012/389-391

 

ABSTRACT
In the developing world, the usage of Mobile phones and other data communication devices are unavoidable which results in the congestion of Spectrum. Recent studies have showed that nearly 70% of spectrum was unused most of the time. The band width becomes expensive due to shortage of frequencies. Therefore to use the spectrum effectively, we need to identify whether the spectrum is occupied or not. Cognitive Radio is a technology which helps us to use the spectrum effectively. Spectrum Sensing is one of the techniques in cognitive radio. Energy detection, Feature detection and Matched Filter detection are methods used for spectrum sensing. In the proposed method, Discrete Wavelet Transform (DWT) is used to identify the unused spectrum band in the RF spectrum. This will yield better results and fast sensing than the conventional method. Moreover, Eigen filter is used in the filter banks of wavelet to give high resolution outputs.

DESIGN AND MODELING OF SPRING BY DESIGN KNOWLEDGE REUSE

 

Authors: Sachin N Waghmare, V B Suryawanshi, S G Jadhav

 

IJAET/ Volume III/ Issue I/ January-March'2012/392-397

 

ABSTRACT
Engineering design is the most important activity of the product development process. In order to cope up with the frequently changing demands of the customers the companies are forced to modify or change the products. Development of any product consists of number of processes & these processes demand thorough knowledge of the particular process. Adapting the changes as per the new design demands is most challenging & requires strong knowledge base. For this, the reuse of the knowledge is the key. The spring is important component in any application. The aim of paper is to create a knowledge database for design of spring for every application and type, by design knowledge reuse with 3-D model.

BEHAVIOR OF NANO LUBRICANT OPERATED HYDRO-DYNAMIC SOLID JOURNAL BEARING

 

Authors: T.R.Sriharsha*, Sudipta Saha, K.Sujith Kumar, D.Harish Kumar

 

IJAET/ Volume III/ Issue I/ January-March'2012/398-401

 

ABSTRACT
The dynamic analysis of hydrodynamic solid journal bearing operating under nano lubricants is presented in this paper. The load carrying capacity of solid journal bearing mainly depends upon the viscosity of the Lubricant being used. The addition of nano particles on commercial lubricants may enhance the viscosity of lubricant and in turn changes the performance characteristics. In the proposed work, to obtain pressure distribution in the clearance space of the solid journal bearing, modified Reynolds equation is used. The film extent of the bearing is established by iterative procedure dynamic characteristics in terms of stiffness coefficients, threshold speed, damping coefficients are evaluated for different eccentricity ratios.