E-ISSN 0976-3945  
  International Journal of Advanced Engineering Technology
                                                                    -An Open Access Peer Reviewed e-Journal

 

 
 

THERMODYNAMIC ANALYSIS OF GANDHINAGAR THERMAL POWER STATION

 

Authors: Prof. Alpesh V. Mehta*, Mr.Manish Maisuria, Mr.Mahashi Patel

 

IJAET/Vol. I/ Issue III/October-November, 2010/01-12

ABSTRACT
Energy and environment both are core for human comfort and peripheral for global survival now-a-days. Modern economic pressure demands re-examination of the existing power generating plants for various options for their techno-economical and efficient operations. This paper presents a detailed energy study based on the first law analysis of the coal fired thermal power station namely Gandhinagar Thermal Power Station (GTPS). In this paper, a detailed energy study is shown for 210MW, Unit-4 of coal fired thermal power plant at Gandhinagar Thermal Power Station (GTPS) to evaluate the plant and subsystem{feed water heaters(high pressure and low pressure),etc}efficiencies. The boiler efficiency is calculated using indirect method after estimating the various heat losses in the boilers. It highlights the positive features of this power plant as well as brings out areas where further detailing and corrective measures are required for efficient utilization of the sources available in the plant. Energy analysis is used to evaluate the overall thermal efficiency of the plant by computing the individual efficiency of the boiler (86.84%), steam turbine (43.5%), and generator (98%). The overall efficiency of the plant (Unit-4) appears to be 37.01%.

EFFECT OF ALUMINIUM POWDER ADDITION IN DIELECTRIC DURING ELECTRIC DISCHARGE MACHINING OF HASTELLOY ON MACHINING PERFORMANCE USING REVERSE POLARITY

 

Authors: Saurabh Sharma, *Anil Kumar, Naveen Beri, Dinesh Kumar

 

IJAET/Vol. I/ Issue III/October-November, 2010/13-24

ABSTRACT
The addition of powder particles suspended in dielectric fluid of electrical discharge machining (EDM) modifies some process characteristics and creates the condition to achieve higher machining performance. In this paper attempt has been made to study the effect of aluminium powder on the machining performance of conventional EDM withreverse polarity. The machining performance is evaluated in terms of material removal rate, tool wear rate, percentage wear rate, surface roughness. Concentration and grain size of aluminium powder are taken as the input powder parameters and its effect are presented on machining performance. It is found experimentally that powder characteristics significantly affect machining characteristics.

DEVELOPMENT OF ACCIDENT PREDICTION MODEL

 

Authors: Rokade S., Singh K., Katiyar S.K. and Gupta S.*

 

IJAET/Vol. I/ Issue III/October-November, 2010/25-40

ABSTRACT
“An Accident Model” is generally an algorithm pitting a dependent variable against several independent variables, each of which is assigned a constant. The dependent variable in an accident prediction model is the number of accidents, while the independent variables may be quantitative variables such as road cross-section dimensions, horizontal curvature, traffic volume, speed and qualitative variables such as type of terrain, road shoulder and median. Through this research, an attempt has been made to develop Accident Prediction Model to take remedial measures in advance by studying future trends, to take mitigation measures to minimize the accident rates to certain extent and to take other safety measures. The model is developed using Multiple Linear Regression Analysis as a modelling technique. The dependent variable used in the model is number of accidents, while independent variables used are road cross-section dimensions, traffic volume, speed, road shoulder width, lighting conditions, traffic signs and traffic signals. The errors are also calculated and the validity of the model is checked by finding the coefficient of determination and comparing the results with the help of graph. The results show that the coefficient of determination lies between 0 and 1 and therefore the model holds good fit.

ANALYSIS & DESIGN OF 44 METER M.S.E. (MECHANICALLY STABILIZED EARTH) WALL BY USING PLAXIS 8.2

 

Authors: D. Kishan, Dr. N. Dindorkar, Dr. R. Srivastava, *Ankesh Shrivastava

 

IJAET/Vol. I/ Issue III/October-November, 2010/41-49

ABSTRACT
Mechanically Stabilized Earth (MSE) Wall has been increasingly used in many Central, state and private projects over the last 20 years. MSE walls are reliable, constructible, and cost effective. However,designing and analysis of MSE all has become a problem for many agencies using them. In this paper a Finite-Element Program PLAXIS is used to analysis and designing of 44 meter 4 tiered MSE wall. Based on the parametric studies it is observed that the top 1st tiered wall shows the deflection of about 130mm, the total displacement of wall is about 132mm, extreme stresses on to the wall are about 29.69%, and total extreme stresses are about 973. 06 kN/m2 to the downward direction from the top of the wall. This paper presents the results of investigations to design and analysis of 44 meter MSE wall.

EXTRACTION OF PROPOLIS FROM BEEHIVES AND CHARACTERIZATION OF ITS CONSTITUENTS AND MEDICINAL PROPERTIES :A REVIEW

 

Authors: Arul Selvan. K, Dr. Prabhu T

IJAET/Vol. I/ Issue III/October-November, 2010/50-53

ABSTRACT
Propolis is a resinous substance collected by honeybees from various plant sources. The honeybees use this substance to seal their honeycombs and protect it from the invasion of microorganisms. The beehive is believed to be the most sterile natural environment. Pure honey has been used in folk medicine for ages and possesses a miraculous 100 years shelf life. The medicinal properties of Propolis have been extensively studied. Propolis possesses hepato-protective, anti-tumor, anti-oxidative, anti-microbial, and anti-inflammatory properties. The chemical composition of Propolis varies in different regions of the world since it is related to the species of honeybees and also the type of vegetation prevalent in that geographical region. Propolis usually comprises of flavonoids and terpenoids, which possess many medicinal properties. Different extraction methods and purification processes have been adopted in various studies. Ethanol extract of Propolis has been observed to possess several biological properties. In many in-vitro studies Propolis has been found to inhibit the growth of many pathogenic microorganisms, thus substantiating the view that it has enormous medicinal scope.

FORWARD KINEMATICS AND DIMENSIONAL SYNTHESIS OF TRIPOD AND TRIGLIDE PARALLEL MANIPULATOR

 

Authors: Arockia Selvakumar.A, R.Sivaramakrishnan and K.Kalaichelvan

 

IJAET/Vol. I/ Issue III/October-November, 2010/54-64

ABSTRACT
Two 3 - RPS Parallel Manipulator is proposed in this paper. The aim of this paper is to design suitable parallel manipulator for angular drilling applications. The proposed two 3-RPS parallel manipulator have two orientation freedom and one translation freedom. The forward kinematic problems and synthesis are carried out by considering geometrical parameters of the mechanism. First, the dimensional synthesis is carried out to get maximum angle of tilt of the moving platform by kinematic equations by simple approach. Secondly, the parallel manipulators are modeled and simulated by using ADAMS® Package. The simulated results are compared with the derived kinematic equations. The simulation results are matched with the derived kinematic equations with minimal error. From this study, the selection of the parallel manipulator for angular machining application is given in detail.

EXPERIMENTAL INVESTIGATION ON VARYING ENGINE TORQUE OF SI ENGINE WORKING UNDER GASOLINE BLENDED WITH OXYGENATED ORGANIC COMPOUNDS

 

Authors: D.Balaji*, Dr.P.Govindarajan, J.Venkatesan

 

IJAET/Vol. I/ Issue III/October-November, 2010/65-73

ABSTRACT
This paper investigates the effect of using unleaded gasoline and additives blends on spark ignition engine (SI engine) performance, combustion and exhaust emission. A four stroke, single cylinder SI engine was used for conducting this study. Performance tests were conducted for fuel consumption, volumetric efficiency, brake thermal efficiency, brake power, engine torque and brake specific fuel consumption, while exhaust emissions were analysed for carbon monoxide (CO), Hydrocarbon (HC), and Oxides of nitrogen (NOx) using unleaded gasoline and additives blends with different percentages of fuel at varying engine torque condition and constant engine speed. The result showed that blending unleaded gasoline with additives increases the brake power, volumetric and brake thermal efficiencies and fuel consumption. The CO and HC emissions concentrations in the engine exhaust decreases while the NOx concentration increases.

SOME STUDIES ON ELECTRIC DISCHARGE MACHINING OF HASTELLOY USING COPPER -CHROMIUM POWDER METALLURGY ELECTRODE USING REVERSE POLARITY

Authors: *Dinesh Kumar, Naveen Beri, Anil Kumar, Saurabh Sharma

 

IJAET/Vol. I/ Issue III/October-November, 2010/74-84

 

ABSTRACT
Electric discharge machining (EDM) has been used mostly in the tool and die industry and the material normally used as electrode are copper, tungsten, graphite, brass, silver, copper tungsten and copper chromium alloys. In the present work, hatselloy steel is used as a work piece for investigating using partially sintered electrode of copper chromium (Cu-Cr) with reverse polarity setup in standard EDM oil. The input parameters selected in the study are current, voltage, duty cycle, pulse on time and flushing pressure, in which current and voltage are varied and other input parameters are kept constant on average value. The output parameters are material removal rate, tool wear rate, percentage wear rate and surface roughness. Experiments were performed on smart ZNC pulse generated type EDM of Electronica make. Material removal rate (MRR) and tool wear rate (TWR) increases with increase in current and voltage and surface roughness (SR) and percentage wear ratio decreases with increase in current at low value of voltage.

A MULTIPLE SCALING SOLUTION OF THE SEEPAGE OF GROUNDWATER FLOW DOWN SLOPING BEDROCK IN HETROGENEOUS SOIL IN THE VERTICAL DIRECTION

 

Authors: N.B.Desai, M.S.Joshi, M.N.Mehta

 

IJAET/Vol. I/ Issue III/October-November, 2010/85-92

ABSTRACT
In the present case the free surface has been obtained here by using Multiple Scaling Method, considering as perturbation parameter. In case of homogeneous soil with small slope the free surface is concave downwards and the pressure head at head reservoir is greater than that of the tail reservoir. It is observed here that both cases the free surface found a falling surface.

FLY ASH CONCRETE FOR ROAD PAVEMENT: A TECHNO-ECONOMIC ANALYSIS

 

Authors: S L Patil, Dr M V Baride, Dr M Husain*, B V Mahajan

IJAET/Vol. I/ Issue III/October-November, 2010/93-100

ABSTRACT
Fly ash, a waste generated by thermal power plants is as such a big environmental concern. However its utilization in cement concrete as a partial replacement of cement as well as an additive provides an environmentally consistent way of its disposal and reuse. In the present work, fly ash is used in the design of cement concrete road pavement. Pavement is a specific application of concrete designed which uses its flexural tensile strength. This work is a case study for Deep Nagar thermal power plant of Jalgaon District in MS. The cement in concrete matrix is replaced from 10% to 50% by step in steps of 10%. It is observed that replacement of cement in any proportion lowers the flexural tensile strength of concrete as well as delays its hardening. Using the characteristic flexural strengths of various cement-fly ash blend concretes a section of road pavement is designed. Cost of sections is estimated. The economic analysis shows that replacement up to certain proportion makes the overall design economical. This provides a environmental friendly method of Deep Nagar fly ash disposal.

DIGITAL ROBUST VIDEO WATERMARKING USING 4-LEVEL DWT

 

Authors: Hitesh Patel, Jignesh Patoliya, Pradip Panchal,R. N. Patel

 

IJAET/Vol. I/ Issue III/October-November, 2010/101-113

ABSTRACT
Recently, digital watermarking algorithms are widely applied to digital image, audio or video for ownership protection and tampering detection. Digital watermarking is the process of reversibly or irreversibly embedding information into a digital signal. In this paper, Video watermarking algorithm based on discrete wavelet transform scheme is proposed. In which, the video is firstly divided into frames and each frames are divided in to three images of red, blue and green, then 4-level DWT (Discrete Wavelet Transform) is performed on each digital image. Here watermarking data is also color binary video, which is also first divided into frames and then three images are taken from each frame. Watermark frames are embedded into the original video frames according to the attribute of the sub-band (LH, HL) of every wavelet images. The interesting point and usefulness of the algorithm lies in that watermark video can be exactly embedded into the original video, and the watermarking is robust to all video attacks because we do not require original video and watermarked video for extracting original video and watermark video. The simulation results show the effectiveness of the scheme.

CHEMICAL ROUTE TO NANOTECHNOLOGY

 

Authors: Virk H. S.* and Poonam Sharma

 

IJAET/Vol. I/ Issue III/October-November, 2010/114-129

ABSTRACT
There are various routes to nanotechnology, namely, physical, chemical, biological and nature’s self assembly. Chemical route to nanotechnology is simpler, cheaper and allows fabrication of nanomaterials at bench top conditions. We followed chemical route of reverse micelles, co-precipitation, solvo-thermal, sol-gel and seed growth technique to prepare quantum dots, nanorods and nanoneedles of Barium Carbonate, Barium Oxalate, Iron Oxalate, Barium hexaferrite, Zinc Oxide, Cadmium Sulphide, Cadmium Oxide and Silver. All these nanomaterials were characterized by using XRD, SEM/TEM, FTIR and UV-Vis spectroscopy. In this review, synthesis of nanomaterials by chemical route will be described briefly.

VERIFICATION OF I2C DUT USING SYSTEM VERILOG

 

Authors: Purvi Mulani, Jignesh Patoliya, Hitesh Patel, Dharmendra Chauhan

 

IJAET/Vol. I/ Issue III/October-November, 2010/130-134

ABSTRACT
Verification is the process used to demonstrate the functional correctness of a design prior to its fabrication. The lack of flexible verification environments that allow verification components reuse across ASIC design projects keep the verification cost very high. Design engineers have made design reuse central in bringing the design effort’s complexity back to a manageable size and to reduce development time and effort. Considering the fact that verification consumes more resources than design does in a typical design project, it would be of great value to build verification components that are modular and reusable. This paper describes the verification of I2C DUT using System Verilog. The DUT has been verified for all four possible configurations, which are: Master TX, Master Rx, Slave TX, and Slave Rx. The verification environment is designed in System Verilog for verifying the DUT which acts as master if DUT is configured as slave and acts as slave if DUT is configured as master. The verification environment designed is reusable for any I2C DUT.

MODEL ORDER REDUCTION AND CONTROLLER DESIGN OF DISCRETE SYSTEM EMPLOYING REAL CODED GENETIC ALGORITHM

 

Authors: J. S. Yadav, N. P. Patidar, J. Singhai

 

IJAET/Vol. I/ Issue III/October-November, 2010/134-144

 

ABSTRACT
One of the main objectives of order reduction is to design a controller of lower order which can effectively control the original high order system so that the overall system is of lower order and easy to understand. In this paper, a simple method is presented for controller design of a higher order discrete system. First the original higher order discrete system in reduced to a lower order model. Then a Proportional Integral Derivative (PID) controller is designed for lower order model. An error minimization technique is employed for both order reduction and controller design. For the error minimization purpose, Real-Coded Genetic Algorithm (RCGA) has been employed. RCGA method is based on the minimization of the Integral Squared Error (ISE) between the desired response and actual response pertaining to a unit step input. Finally the designed PID controller is connected to the original higher order discrete system to get the desired specification. The validity of the proposed method is illustrated through a numerical example.

MATHEMATICAL MODELING OF PROCESS PARAMETERS IN FRICTION STIR WELDING OF ALUMINIUM

 

Authors: Singh Gurmeet *, Goyal Navneet, Singh Kulwant, Singh Jagtar

 

IJAET/Vol. I/ Issue III/October-November, 2010/145-159

ABSTRACT

Friction stir welding is considered to be the most significant development in metal joining in the last decade. This joining technique is energy efficient, environment friendly and versatile. In the present work an effort has been made to study the influence of the welding parameters on mechanical properties in friction stir welding of aluminum. Three process parameters i.e tool rotation speed, welding speed, and pin diameter were considered. Two level factorial designs of eight runs were selected for conducting the experiments. The mathematical models were developed from the data generated. The significance of coefficients and adequacy of developed models were tested by Student’s ‘t’ test and ‘F’ test respectively. The effects of process parameters on mechanical properties have been represented in the graphical form for better understanding.

A SCHEME FOR SIMULTANEOUS ACTUATOR AND SYSTEM FAULT DETECTION

 

Authors: Kanthalakshmi.S*, Manikandan.V

 

IJAET/Vol. I/ Issue III/October-November, 2010/160-174

ABSTRACT
The main focus of this work is to detect fault based on Markov parameter for residual generation and classify fault using Fuzzy classifier. In the first step, from the input-output data, the system is identified using stochastic system identification algorithm. The random system faults and actuator faults are introduced at arbitrary time instants. In the next step, the fault is diagnosed by comparing the Markov parameters of the healthy and faulty systems. Using the residue generated, the fuzzy classifier classifies the fault. The proposed approach is illustrated with a benchmark example and encouraging results are obtained.

HISTORY BASED DYNAMIC SPECTRUM ALLOCATION TECHNIQUE WITH NOISE ABRIDGED IN COGNITIVE RADIO NETWORKS

 

Authors: Dr. Shashikala Tapaswi, Dr. R.S.Jadon, *Prabhakar Sharma

 

IJAET/Vol. I/ Issue III/October-November, 2010/175-184

ABSTRACT
We propose a novel algorithm to model the dynamic channel allocation problem in cognitive radio networks using past history of usage. In the proposed work, we define a unique model to assign priorities to the secondary users based on the required Quality of Service and on the interference delay to minimize the switching and hence to mitigates the delay of the secondary users. In this paper, we also discuss the techniques used to deal with the issues related to spectrum sensing and interference avoidance for cognitive radio systems.

BIOMETRIC AUTHENTICATION USING INVARIANT FILTER BANK

 

Authors: P.Rega, K.Manokaran

 

IJAET/Vol. I/ Issue III/October-November, 2010/184-193

ABSTRACT
This paper presents a new filter bank based fingerprint feature extraction and matching method without needing to detect minutiae. The proposed method decomposes a fingerprint image into eight directional sub band outputs using an invariant filter bank [IFB] and then obtains directional energy distributions for each block from the decomposed sub band outputs. Only dominant directional energy components are employed elements of the input feature vector, which serves to reduce noise and improve efficiency. For the rotational alignment additional input feature vectors in which various rotations are considered are extracted, and these input feature vectors are compared with the enrolled template feature vector. The proposed method significantly reduced the memory cost and processing time associated with verification, primarily because of the efficient IFB structure and the exploitation of directional specific information. Experimental results validate the effectiveness of the proposed method in extracting fingerprint features and achieving good performance.

ESTIMATION AND ANALYSIS OF OCEAN WAVE PARAMETERS BASED ON BUOY MOTION

 

Authors: S.Sakthivel Murugan, Dr.V.Natarajan, Jagadeesh Adapa

 

IJAET/Vol. I/ Issue III/October-November, 2010/194-200

ABSTRACT
Hull slopes resulting from wave motion are needed to estimate directional wave spectra from the motions of a buoy. In this paper in-order to obtain non-directional wave parameters, spectra are calculated directly from measured acceleration time series. A real time algorithm is developed for estimation of azimuth, pitch, and roll angles using buoy motion. Measured time series of heave (elevation), pitch, roll and magnetic azimuth are derived as the output of Motion Reference Unit (MRU) which is a sensor. Parameters derived from the spectra and cross-spectra provide non-directional (significant wave height) and directional wave information (mean wave direction, principle wave direction), including directional spectra.

EFFECT OF SOLID LOADING AND BINDER ADDITION ON PREPARATION AND PROPERTIES OF CERIA STABILIZED ZIRCONIA MINISPHERES

 

Authors: J. Judes* and V. Kamaraj

 

IJAET/Vol. I/ Issue III/October-November, 2010/201-212

ABSTRACT
In order to reduce shrinkage and to improve sintered density of the zirconia minispheres, solid loading has been performed by adding t-zirconia powder. The effect of solid loading on the density, transformation temperature, shrinkage, microstructure and mechanical properties of zirconia minispheres are observed. When the solid loading is increased, variation in the density is observed, however the shrinkage is optimized for better dimension control. Variation in binder concentration has been made to study its effect on final product. A maximum sintered density of 98% TD has been obtained for the samples prepared with 30% of solid loading and 35 wt% of PVA. Solid loaded zirconia minispheres have been extensively characterized to establish a correlation between structural, physical and mechanical properties. Solid loading on ceria stabilized zirconia minispheres improves the properties such as density, porosity, shrinkage, weight loss, crystallization temperature, crystallite size, phase, grain size and mechanical properties.

AN INNOVATIVE APPROACH TO TREATMENT OF HIGH BOD WASTE WATER

 

Authors: Anil W Kharche, Shrikant R. Kulkarni

 

IJAET/Vol. I/ Issue III/October-November, 2010/213-224

ABSTRACT
Water pollution has been a cause of concern due to anthropological reasons. Further, there has been continuous upsurge in water pollution and thereby posing a threat to ecological balance. This rise in pollution continues to be responsible for destroying many plant and animal species, making them extinct as well as polluting rivers, beaches and other water-ways. Water bodies are getting burdened with high degree of Organic and Inorganic waste which demand novel approaches to rid off high BOD and COD. The present study is an innovative approach which deals with the treatment of high BOD waste water generated after the anaerobic treatment from distilleries. High BOD waste water is treated first to recover the best from waste and treat it in second stage. Liquid waste water from distilleries, based on fermentation of alcohol from molasses, is rich in high organic and in organic substances. It was concluded that for a properly operating aerobic system treating high BOD wastewater, further neutralization is not required as biodegradation of nitrogen containing compounds and reduction of sulfate to sulfides would generate sufficient alkalinity to buffer the system. Further, the high MLSS concentration for treatment of high BOD waste water is suitable for reduction of all pollution parameters. These include conservation of fresh water and preservation of the environment, imparting greater efficiency and stability to the reactor, and allowing the system to handle higher organic loads. The organic loading rate, ratio of Kg BOD5 applied per day which represents the microbial feed to Kg MLSS in reactor module (aeration tank) representing micro- organism i.e. F/M is the main factor controlling the BOD removal. Lower the F/M value, higher will be the BOD removal in the system observed, at 40,000mg/L MLSS concentration.

EFFECT OF TEMPERATURE ON THE HYGROTHERMAL AND MECHANICAL BEHAVIOR OF GLASS-EPOXY LAMINATES

 

Authors: Shivakumar S, Dr.Shivarudraiahb

 

IJAET/Vol. I/ Issue III/October-November, 2010/225-231

ABSTRACT
The aim of the work was to study the effects of temperature on hygrothermal and flexural behavior of glass/epoxy composites exposed for 200 days at different temperature, 30, 50 and 70ºC. The failure mechanisms associated with fractured damage were investigated under three-point bending loading. The flexural moduli, mass uptake, internal laminar shear strength [ILSS] and flexural strength of glass-fiber reinforced epoxy matrix interface weakening and debonding due to different hygrothermal ageing stages have been measured. These results showed that the combined effect of the hygrothermal with the high temperature test, decrease the flexural and ILSS strength of the composite materials but the thickness increased. Micro structural analysis was done for hygrothermally treated samples by Scanning Electron Microscope.

SOFTWARE ARCHITECTURE AND SOFTWARE PROJECT MANAGEMENT: A MOTIVATIONAL STUDY

 

Authors:  L.S.Maurya, Himanshu Hora

 

IJAET/Vol. I/ Issue III/October-November, 2010/232-239

 

ABSTRACT
Software architecture (SA) is considered an dynamic research area nowadays, although it is not a new activity while developing software. Software architecture is a structure symbolized using Architecture Description Languages (ADLs) and graphical diagrams of the system, showing different components and relationships among them. Software Project Management (SPM) pertains to the management and controlling activities involved in Software Development Life Cycle (SDLC) and includes planning, organizing, staffing, leading and controlling the software processes. This paper objective is to identify the motivational factors affecting software architects and software project managers using the survey technique. We have collected results from questionnaire surveys technique which will help software project managers and software architects to understand the factors that can affect the overall quality of the software and its architecture. The last step will be to propose an updated framework for Systematic Literature Review (SLR). This new concept of using Clustering, Genetic Algorithm and Agents in SLR was proposed to produce an effective and optimized query search strings and searches for search engines.

RELIABILITY MANAGEMENT AND FAILURE MAINTENANCE OF COMPONENT BASED SOFTWARE SYSTEMS

 

Authors:  R.Chinnaiyan , Dr.S.Somasundaram

 

IJAET/Vol. I/ Issue III/October-November, 2010/240-250

 

ABSTRACT
The software industry has expanded during the past few years and the growth has mainly focused on a growing market and the development of component based software systems. Different designs have emerged and the technical knowledge makes it possible to put component based software off shore. The fast expansion of the software market has also come with some problems. The new designs are not always fully tested, and the designed lifetime of 20 years is typically never achieved until the next generation of software is erected. The extreme conditions and the high loads that software is exposed to makes the coordination of maintenance an interesting issue. How much maintenance is needed? Are there any ways of minimizing the maintenance and yet have a good availability for the software? The technical availability of software is high, around 98%, but this is due to fast and frequent service and not just because of good reliability or maintenance management. The problem area for the proposed work, is focused on the reliability for the components of the component based software system. If the most critical software components for the software system can be identified, it will show in what areas to focus when planning the maintenance for the software system. If the condition of these critical software components can be supervised, the maintenance can be planned even further. Investigations of failure statistics from different sources reveal the reliability performance of the different software components within the software. The failed component is found to be the the most critical as the downtime per failure is high in comparison to the other components in the software. To reduce the risk of a failure, the monitoring of the software component is required. One way of monitoring the performance of the software component is by using a State Monitoring System (SMS). The presented method uses a State Monitoring System for managing reliability and failure maintenance of component based software systems.

CHALLENGES AND CURRENT TRENDS IN KNOWLEDGE BASED SYSTEM

 

Authors:  Dr. Priyanka Sharma

 

IJAET/Vol. I/ Issue III/October-November, 2010/251-255

ABSTRACT
 

SOCIO-ECONOMIC DEVELOPMENT INDICATORS: A CRITICAL APPRAISAL OF GWALIOR REGION

Authors:  Anjali S. Patil, Dr. R. K. Pandit

 

IJAET/Vol. I/ Issue III/October-November, 2010/256-265

 

ABSTRACT
 

PARAMETRIC STUDY OF FLANGE JOINT AND WEIGHT OPTIMIZATION FOR SAFE DESIGN AND SEALABILITY- FEA APPROACH

 

Authors:  Chavan U. S.* Dharkunde R. B. Dr. Joshi S.V.

 

IJAET/Vol. I/ Issue III/October-November, 2010/266-276

 

ABSTRACT
The present work utilized finite element analysis (FEA) to investigate the mechanics of the bolted flange joint and effect of the flange thickness on working stresses of the components of the flange assembly and gasket performance. The nonstandard flange design case is considered for study purpose. The FE model is formulated using structured mesh considering gasket behavior and preloaded fasteners. The customized parametric module is developed using ANSYS Parametric Design Language (APDL) to automate the nonstandard flange analysis tasks. Optimization is done using subproblem approximation method to obtain minimum weight of flange such that all components of the flange joint are exhibiting fundamental joint characteristics i.e. safe design and sealability

DESIGNING OF DROOP COMPENSATION BASED DECIMATOR FOR SIGMA-DELTA ADC

Authors:  *Lalita Yadav, Manoj Duhan

 

IJAET/Vol. I/ Issue III/October-November, 2010/277-283

 

ABSTRACT
In this paper, the designing of decimation filter for sigma-delta (?-?) ADC having different oversampling ratio (OSR) is described. The decimation filter perform the operation of down sampling of a high frequency, low resolution signal to Nyquist rate, high resolution digital output. The design of a decimation filter is projected that employs two stages- Cascaded Integrator Comb (CIC) filters and droop compensation filter. The overall objective is to optimize the decimator in terms of performance and reliability.

SOLAR ADSORPTION TECHNOLOGIES FOR ICE – MAKING AND RECENT DEVELOPMENTS IN SOLAR TECHNOLOGIES: A REVIEW

 

Authors: Odesola, Isaac F. and Adebayo James

 

IJAET/Vol. I/ Issue III/October-November, 2010/284-303

 

ABSTRACT
Solar adsorption refrigeration devices are significant to meet the needs for cooling requirements such as air – conditioning, ice – making and medical or food preservation in remote areas. They are also noiseless, non – corrosive and environmentally friendly. Various solar powered cooling systems have been tested extensively; these systems are not yet ready to compete with the well – known vapor compression systems. For these reasons, research activities in this sector are still on to solve the technical, economical and environmental problems. So, the primary objective of this work is to provide fundamental understandings of the solar adsorption systems and to give useful guidelines regarding the working principles of the various intermittent adsorption systems and their applications in ice – making with the aim of improving Coefficient of Performance (COP) . Also, in this work, a review of the research state of art of the solar sorption (absorption and adsorption) refrigeration technologies is presented. After an explanation of the systems working principles, recent progress in solar sorption refrigeration technologies are also reported. It shows that solar – powered sorption systems refrigeration technologies are attractive alternatives that not only can serve the needs for air – conditioning, refrigeration, ice – making and cooling purposes , but also can meet demands for energy conservation and environmental protection.

SOME STRATEGIES FOR SUSTAINABLE MAINTENANCE OF RURAL ROADS IN INDIA

 

Authors: Agarwal, P. K* , Singh, A. P

 

IJAET/Vol. I/ Issue III/October-November, 2010/304-311

 

ABSTRACT
Vast rural road network created recently in India has resulted in increased social and economic benefits all around. However, these benefits would reduce substantially due to poor maintenance of these created assets. Thus, in order to reap the benefits of created assets it is essential to maintain the rural road network in India. Therefore, this study highlights some basic issues for sustainable maintenance of rural roads. This study also identifies some strategies for rational uses of limited resources available for maintenance, strategies to provide required level of funding, strategies to strengthen the institutional measures and strategies for developing data base for sustainable maintenance of rural road network in India. A basic framework is also presented that can be used for developing a maintenance management system for rural roads in India. It is expected that the finding of this study will be useful to preserve the benefits of huge rural road assets created recently in India.

STUDY ON PERFORMANCE OF FLEXIBLE HIGHWAY PAVEMENTS

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

 

IJAET/Vol. I/ Issue III/October-November, 2010/312-338

 

ABSTRACT
The evaluation of riding quality of pavement involves a study of the functional behaviour of a stretch of road pavement in its entirety. For a functional behaviour or performance analysis, information is needed on the history of riding quality of the pavement stretch. In condition survey, pavement surface condition is measured at a given time. The riding quality of a pavement can be measured by a Bump Integrator which qualifies in to physical terms, the overall surface condition of the pavement. It is necessary for the pavement maintenance engineer to evaluate functional condition of a pavement surface from time to time. Unevenness is normally measured with response type measuring equipment, which is relatively fast and inexpensive. The towed fifth wheel Bump Integrator is one such instrument. The unevenness measured by these devices is generally expressed in terms of cumulative humps and depressions (mm/km) or slope variance. In the structural evaluation of flexible pavement the pavement deflection is measured by the Benkelman Beam. It is possible to measure the rebound and residual deflections of the pavement structure. While the rebound deflection is one related to pavement performance, the residual deflection may be due to non recoverable deflection of the pavement or because of the influence of the deflection bowl on the front legs of the beam. Rebound deflection is used for overlay design. The objective of the present study is to carry out the various studies to evaluate the performance (in service behavior) of flexible National Highways and State Highway near Bhopal. A detailed pavement condition survey is done on 4 National Highways and 1 State Highway and the road condition is evaluated both functionally and structurally.

EFFECT OF ROUGHNESS ELEMENT PITCH ON HEAT TRANSFER AND FRICTION CHARACTERISTICS OF ARTIFICIALLY ROUGHENED SOLAR AIR HEATER DUCT

 

Authors: Aman Soi*, Ranjit Singh, Brij Bhushan

 

IJAET/Vol. I/ Issue III/October-November, 2010/339-346

 

ABSTRACT
In the present paper CFD based investigation has been reported in order to study effect of roughness element pitch on heat transfer and friction characteristics of solar air heater duct for a range of system and operating parameters. It has been observed that roughened absorber plate results augmented heat transfer coefficient at the cost of frictional penalty. In order to predict performance of the system, Nusselt number and friction factor correlations have been developed by using the data generated under CFD based investigation.

RISK ASSESSMENT OF DISTAL UPPER EXTREMITY DISORDERS IN SMES V/S LARGE SCALE AUTOMOTIVE INDUSTRY USING STRAIN INDEX METHOD

 

Authors: L P Singh

 

IJAET/Vol. I/ Issue III/October-November, 2010/347-357

 

ABSTRACT
Musculoskeletal disorders (MSDs) of upper extremities are associated with highly repetitive occupational activities, especially those involving high force, extreme joint postures and exposure to vibration. Strain index (SI) is a semi-quantitative job analysis methodology based upon principles of physiology, biomechanics and epidemiology for exposure assessment of musculoskeletal stressors of distal upper extremity (DUE). Its purpose is the identification of jobs that place workers at increased risk of developing disorders in the DUE. The present study finds the DUE disorders in workers of small scale forging unit verses a small scale automated casting and large automotive industry of northern India. The average stain Index was found very high (avg=15.35, SD=7.74) in forging unit as compare to automated casting unit and automotive car assembly plant. The workers of small scale units are working > 8 hrs (average 10 hrs/ day). The study concluded that worker of small scale forging units are more prone DUE disorders as compare to an automated casting unit and large automotive industry. It also emphasized on introducing job rotations and low cost automation for material handling devices for higher SI

WORK POSTURE ASSESSMENT IN FORGING INDUSTRY: AN EXPLORATORY STUDY IN INDIA

 

Authors: L P Singh

 

IJAET/Vol. I/ Issue III/October-November, 2010/358-366

 

ABSTRACT
Musculoskeletal disorders (MSDs) are common health problem throughout the world. Assessment of exposure levels to MSD risk factors can be an appropriate base for planning and implementing interventional ergonomics programs in the workplace. The presents study is focused on posture analysis of the workers working in forging industry. The study was conducted on 130 workers engaged in various process of small scale forging firms of northern India. Video recording on different activities of the workers was done and then images were cropped from it for the analysis. Posture analysis tools RULA, REBA and OWAS were used. The results of REBA showed that about 10.65% of the workers were under very high risk level and needed a necessary action immediately. About 30% of the workers were under high risk levels and about 10% of the workers were at lower risk levels. The study also showed that about 46% of the workers were at medium risk levels and required a necessary action. The results of RULA showed that about 30% of the workers were under high risk levels and required immediate change. About 33-38% of the workers were at lower risk levels and 32- 33% of the workers were at medium risk levels. According to the OWAS method of analysis, the study showed that 56.15% of the workers were fine and needed no corrective measures. About 23.85% of the workers needed corrective measures in the near future and 19.23% of the workers required corrective measures as soon as possible. Whereas a few worker had a very bad posture and required immediate corrective measures. It was concluded that; there is a lack of ergonomics planning and methods in small scale forging industry. A significant proportion of the workers are working in very bad postures. Thus the workers are under moderate to high risk of Musculoskeletal disorders (MSDs). The study recommended proposed that there is dire need of implementation of ergonomics interventions with proper awareness among workers.