E-ISSN 0976-7916
  Journal of Engineering Research and Studies
                                                           -An Open Access Peer Reviewed e-Journal

 

 
 

METHODOLOGIES FOR INTRUSION DETECTION & PREVENTION

 

Authors: Kamini Nalavade, B.B.Meshram*

 

JERS/Vol. III/ Issue I/January-March, 2012/01-08

ABSTRACT
Internet provides huge information and value to the users but at the same time access to the internet is prone to increasing number of attacks. Tracing the source of the attacking packet is very difficult because of stateless and destination based routing infrastructure of Internet. If the attacks are detected successfully, then preventive measures for attacks can be taken. Host based and network based intrusion prevention systems are available in the market. Host based Intrusion Prevention Systems are designed to protect information systems from unauthorized access, damage or disruption. To counteract the rapidly evolving threats presented by the latest generation of worms, software and network exploits knowledge of intrusion detection and prevention is very much important. This paper provides the in depth study of methodologies and models used for intrusion-detection. Details about prevention technologies are also stated. Attacks on intrusion prevention systems and counter measure is also described. We propose our approach for intrusion detection and prevention in the networks.

STUDIES ON GENERATION OF POWER ALCOHOL AS A NON-CONVENTIONAL ENERGY SOURCE FROM AQUATIC MACROPHYTES- A CRITICAL REVIEW

 

Authors: A. D. Bhetalu*, Dr. S. S. Patil, Dr. N. W. Ingole

 

JERS/Vol. III/ Issue I/January-March, 2012/9-17

ABSTRACT
This paper presents a critical review of need for utilization of biomass, social, economical and environmental point of views and impacts of utilization of biomass in Indian context. Due to the huge population in India, the consumption of fuel is also massive which is creating a lasting impact on our National economy. However, there are certain possibilities which could well present the opportunities of creating National Energy security through the proper use of what is known as noxious weed. However, the large scale production still needs to be scaled down to cost effectiveness.

EFFECT OF ALKALINE ACTIVATOR ON THE STRENGTH AND DURABILITY OF GEOPOLYMER CONCRETE

 

Authors: D B Raijiwala, H S Patil, I U Kundan

 

JERS/Vol. III/ Issue I/January-March, 2012/18-21

ABSTRACT
Geopolymer concrete technology has the potential to reduce globally the carbon emission and lead to a sustainable development and growth of the concrete industry. The influence of alkaline activators on the strength and durability properties has been studied. Sodium Hydroxide is available in plenty and Potassium hydroxide is more alkaline than NaOH, both were added by the same amount (50% NaOH+50%KOH) as alkaline activators alongwith sodium silicate at varying temperatures in the preparation of geopolymer concrete. Fly ash was procured from a local thermal power station. Compression test, Split tensile test, Flexure test, Pull out test and durability test were performed. The results indicate that the combination of the above constituents at 800C has a positive impact on the strength and durability properties of geopolymer concrete.

PERFORMANCE AND EMISSION CHARACTERISTICS OF COMPRESSION IGNITION ENGINE WITH PUMPKIN (CURCURBITA  PEPO L) SEED OIL

 

Authors: P. Chandrasekar, R. Prakash and S. Murugan

 

JERS/Vol. III/ Issue I/January-March, 2012/22-25

ABSTRACT
Vegetable oil is one of the most attractive alternatives for diesel engine. The present work is focused on evaluation of the performance and emission of parameters of a diesel engine fuelled with a pumpkin oil diesel blends. Pumpkin seed oil was extracted from the pumpkin seeds and tested for the physical and chemical properties. The results are compared with that of diesel. By analyzing the graphs, it was observed that the brake thermal efficiency was increased by 5.5% and NO, HC emissions were found to be increased compared to those of diesel at full load. From the experimental results, it can be observed that 10% of pumpkin seed oil mixture mixed with 90% of diesel is the best suited blend for Diesel engine without heating and without any engine modifications.

DENTAL BIOMETRICS USED IN FORENSIC SCIENCE

 

Authors: Shubhangi Jadhav, Revati Shriram

JERS/Vol. III/ Issue I/January-March, 2012/26-29

ABSTRACT
Dental biometrics used in forensic science for human identification. It utilizes dental radiographs. This radiograph provides information related to teeth shape, teeth contour and relative position of neighboring teeth, also it gives shapes of dental work like crowns, filling & bridges etc. This paper includes different method used for dental biometrics and related information. Dental biometrics requires antemortem (AM) and postmortem (PM) radiographs for finding unidentified subject. Dental biometrics having three stages: Preprocessing and segmentation of radiographs, Contour extraction or dental work extraction, Atlas registration and matching. Segmentation can be done by various methods that are mentioned in this paper. Contour or shape of teeth and dental work can be extracted by using active contour model (ACM) or active shape model (ASM) methods. Atlas registration is the method used for labeling to teeth, which will help in the matching stage. Matching of AM radiograph with PM radiograph can be done by using algorithms.

ENERGY CONSERVATION AND EFFICIENCY CALCULATION CHEMICAL PROCESS PLANT

 

Authors: S.K. Saini ,V.A.Shinde

 

JERS/Vol. III/ Issue I/January-March, 2012/30-33

ABSTRACT
Energy conservation has become crucial to the process industry. Rising material and fuel costs coupled with increased global competition is forcing process plant to slash energy costs. Utility management therefore assumes significant importance in a process plant. The manufacturing process involves use of utilities like steam, compressed air, electrical power and large quantity of water to a varying degree depending upon the raw material used. mass and Energy Balances for a process Relative magnitudes-quantification of energy flows Design Balance /Operating Balance Energy conservation and Energy efficiency calculations has been performed on fuel oil boiler operating at 9.5-8 kg/cm2g at a unit of Beverages plant .The losses such as due to sensible heat in dry flue gases due to enthalpy in water vapour in flue gases due to unburnt gases in flue gases due to combustible matter in ash due to moisture in air due to blowdown.

EMISSION AND PERFORMANCE OF DIESEL ENGINE USING WASTE COOKING OIL BIO DIESEL BLENDS-A REVIEW

 

Authors: Parekh P R*, Goswami J

 

JERS/Vol. III/ Issue I/January-March, 2012/34-39

ABSTRACT
Now the environment down at an alarming rate, there have been steady calls by most governments following international energy policies for the use of bio fuels. One of the bio fuels whose use is rapidly growing is biodiesel. One of the economical sources for biodiesel production which doubles in the reduction of liquid waste and the subsequent burden of sewage treatment is waste cooking oil (WCO). However, the products formed during frying process, such as free fatty acid and some polymerized triglycerides, can affect the transesterification reaction and the biodiesel properties. This works about the engine performance and emissions characteristics of WCO biodiesel on diesel engine. Overall, the engine performance of the WCO biodiesel and its blends was only little poorer than diesel. From the view of emissions, NOx emissions were slightly higher in WCO than diesel while un-burnt hydrocarbon (UBHC) emissions were lower for WCO than diesel fuel. There were no noticeable differences between WCO biodiesel and fresh oil biodiesel as their engine performances and emissions characteristics.

REVERSE ENGINEERING OF BRAKE ROD OF BAJAJ PULSAR 150CC MOTOR BIKE USING SOLIDWORKS AND AUTODESK INVENTOR

Authors: Niranjan Singh, Dr. Jagdev Singh

 

JERS/Vol. III/ Issue I/January-March, 2012/40-48

 

ABSTRACT
Reverse Engineering is a general process of analysing a technology specially to ascertain how it was designed or how it operates. This kind of inquiry engages in a constructive learning process about the operation of system of products. In this paper an attempt has been made to find out the persisting problem associated with the Brake Rod of Bajaj Pulsar 150cc Motor Bike using Reverse Engineering. Brake Rod is an essential component which establishes a link between the Brake pedal and Brake shoe assembly. The geometric data of undertaken component has been obtained by photogrammetry technique. The 3D model of Brake Rod has been created by SolidWorks and Autodesk Inventor using FEA/FEM technique. The analysis of existing and modified Brake Rod has been performed at various loads ranging from minimum value to maximum value in order to study the behavior of Brake Rod. The analysis involved the study of stress distribution, determination of Factor of Safety and displacement. The results obtained by SolidWorks are then compared with the results of Autodesk Inventor. And then the final modifications have been proposed in the existing Brake Rod.

RURAL ELECTRIFICATION WITH LOSS MINIMIZATION THROUGH DIFFERENT STRATEGIES FOR SUSTAINABLE INFRASTRUCTURE DEVELOPMENT

 

Authors: Krishnakant Gautam, Vijay Bhuria

 

JERS/Vol. III/ Issue I/January-March, 2012/49-51

ABSTRACT
The problem of electricity supply with minimum possible losses is the challenge to countries like India where 72% of human resources inhabited in 600 villages. Electricity on one hand is identified as key component of socio economic development, at the same time it is also identified as a commodity to be traded and large scale restructuring of power system is being taken up with vertical unbundling. Rural electrification is an important component of Integrated Rural Development. Rural electricity distribution is costly due to dispersed distribution of loads in spread over areas. The problem needs to be addressed from several view points as social, economic, and technological advancements. This paper emphasizes on development of new techniques for minimal power loss in electricity distribution system .The proposed high voltage distribution system being cost effective on one hand is equally applicable to urban areas as well.

TIME TO INTRODUCE INTEGRATED COURSES IN ENGINEERING

 

Authors: Pawar Avinash Shivajirao

JERS/Vol. III/ Issue I/January-March, 2012/52-57

ABSTRACT
“It is not the strongest of the species that survive, not the most intelligent, but the one most responsive to change” Charles Darwin
Just as the Industrial Revolution transformed the world two centuries ago, the Information Revolution will transform our lives in the next millennium. The challenge for us in Engineering education is to exploit the exciting possibilities that Information Technology offers to prepare our people for this information revolution. We need to provide an environment for students to use information effectively as well as to transform information into knowledge.
The paper describes why there will be need to introduce new integrated courses in Engineering education in India, and also suggests appropriate approaches for technological innovation of higher education in India. Engineering field becomes Mass Education in Educationally developed states like Maharashtra, Karnataka, Tamilnadu, West Bengal, Andhra Pradesh, Delhi, etc. It is true that current Indian Industrial Sector unable to provide Job for each Engineer. There will be massive competition in each field as we see in recent years.
Economic liberalization has forced the industries to adopt to new technologies, management techniques, retrain personal to enhance overall capability to face new challenges. Consequently, engineering education has also taken important initiatives to fine-tune its activities to suit the changing needs of the world of work. Change and quality have become the watchwords in a world shaped by globalization and information revolution.

DUNE SAND STABILIZATION USING BENTONITE AND LIME

 

Authors: Dr. A. S. Wayal, Dr. N.K. Ameta, Dr. D.G. M. Purohit

 

JERS/Vol. III/ Issue I/January-March, 2012/58-60

ABSTRACT
This paper presents experimental results on the use of bentonite and lime in stabilizing dune sands for possible uses in geotechnical engineering. The addition of lime help in the immediate amelioration effects caused by base exchange and flocculation. The tangible effect of lime soil stabilization in increasing the strength of mixture begins to be felt as lime content further increased due to pozzolanic reactions resulting in the production of cementious compounds. The bentonite added to the mix was helping in making cohesive bond in the mix. The various mix prepared for the tests were addition of 5%, 10% and 15% bentonite with lime 1%, 2% and 3%. Laboratory tests such as compaction and unconfined compression test were performed to measure the engineering characteristics of stabilized materials. The results showed substantial improvements in unconfined compression strength with addition of 15% bentonite and 3% lime. Thus bentonite and lime can be used to improve the strength characteristics of dune sand.

STUDIES ON Al384.1-MgO BASED METAL MATRIX COMPOSITES AND OPTIMIZATION OF TENSILE STRENGTH USING TAGUCHI TECHNIQUE

 

Authors: Hartaj Singh*, Sarabjeet, Nrip jit

 

JERS/Vol. III/ Issue I/January-March, 2012/61-64

ABSTRACT
The present work represents evaluate the fabricated Al-384.1 as metal matrix composite (MMC) with percentage of increased MgO at 0.05%, 0.10, and 0.20%. The relative particle size and mechanical behavior under tensile strength can be accomplished. By using Taguchi technique, an orthogonal array and the analysis of variance were employed to analyze the influence of process parameters was performed to acquire data in control and optimized way. Finally, confirmation tests were conducted to verify the results obtain experimentally.

GENETIC ALGORITHMIC OPTIMIZATION OF PHYSICAL OPERATING CONDITIONS IN CITRIC ACID FERMENTATION

 

Authors: K. Anand Kishore and G. Venkat Reddy

 

JERS/Vol. III/ Issue I/January-March, 2012/65-69

ABSTRACT
The Present work reports an economic and higher yield production of Citric acid by aerobic submerged fermentation of sucrose using Aspergillus Niger-NCIM 705. Regression analysis was carried out for the Univariate search experimental data using DATAFIT software to evaluate the degree of effect of each of the variables: Initial sucrose Concentration, Fermentation Temperature, Stirrer speed, oxygen flow rate, and pH on the amount of Citric acid produced, biomass generated and Sucrose consumed. The results of regression analysis reported that the physical operating conditions: fermentation temperature and oxygen flow rate were enormously influencing the yield of citric acid and hence the two are dominant variables. Univariate search experiments for the two parameters were again conducted. The yield of Citric acid obtained from experiments was developed as a function of fermentation temperature and oxygen flow rate and the same variables were optimized using evolutionary Genetic algorithms. The optimum values from experimental studies were found to be 31oC and 0.5 lpm whereas by Genetic algorithms to be 28.95oC and 0.55 lpm respectively producing maximum citric acid of 56.70 g/l. The genetic algorithmic results were compared with the literature values and found to be in good agreement.

 

OPTIMIZATION OF MILLING PROCESS PARAMETERS OF EN33 USING TAGUCHI PARAMETER DESIGN APPROACH

 

Authors:Mr. Dhole N. S., Prof. Naik G. R, Mr. Prabhawalkar M. S.

 

JERS/Vol. III/ Issue I/January-March, 2012/65-69

 

ABSTRACT
To remain competitive in the today’s competitive market the manufacturers rely on their engineers and production personnel to quickly and effectively set up manufacturing processes for new products to achieve good quality. Due to this surface finish & dimensional accuracy becomes very important. The knowledge of cutting forces developing in the various machining processes under given cutting factors is of great importance, being a dominating criterion of material machinability, to both: the designer-manufacturer of machine tools, as well as to user. Furthermore, their prediction helps in the analysis of optimization.
This paper discusses about Taguchi method which involves reducing the variation in a process through robust design of experiments. The overall objective of the method is to produce high quality product at low cost to the manufacturer. Taguchi developed a method for designing experiments to investigate how different parameters affect the mean and variance of a process performance characteristic that defines how well the process is functioning. The experimental design proposed by Taguchi involves using orthogonal arrays to organize the parameters affecting the process and their appropriate levels.
The experiments are conducted using L-18 orthogonal array on EN 33 material as suggested by Taguchi. Signal-to-Noise (S/N) ratio and Pareto Analysis of Variance (ANOVA) will be employed to analyze the effect of milling parameters on cutting force. Main effects of process parameters on the quality characteristics can be analyzed.

A REVIEW ON MECHANICAL CHARACTERIZATION OF NATURAL FIBER REINFORCED POLYMER COMPOSITES

 

Authors: Dr. Navdeep Malhotra, Khalid Sheikh and Dr. Sona Rani

 

JERS/Vol. III/ Issue I/January-March, 2012/75-80

ABSTRACT

Natural fibers have been used to reinforcing materials for over 2,000 years. The necessity for renewable fiber reinforced composites has not been as prevalent as it currently is. Natural fibers are emerging as cost effective and apparently ecologically superior substitutes to glass fibers in composites. In this review a comparative life cycle valuation of Natural fiber reinforced polymer matrix composite materials has been accounted. The methodology and findings of mechanical and fracture surface characterization of various natural fiber composites has been summarized.

GANESHOTASV-A FESTIVAL OF NOISE

 

Authors: Mrs P. Saler, Mr. Satyasheel Vibhute

 

JERS/Vol. III/ Issue I/January-March, 2012/81-83

ABSTRACT
Sound is a form of energy emitted by a vibrating body causing change in pressure of the surrounding elastic medium through which energy is transmitted. Noise has been defined as unwanted sound. Noise is a disturbance to the human environment which is escalating at a high rate. There are numerous effects of noise on human and environment due to the increase in noise pollution slowly, insensibly; we seem to accept noise and the physiological and psychological deterioration that accompanies it as an inevitable part of our lives. Although attempts have been made to regulate noise pollution by setting standards for some of the major sources of noise, we often are unable to monitor them. One such source of noise in India is celebration of festival and especially in Maharashtra, the biggest festival- Ganeshostav. The way noise levels are increasing year by year during this festival, it seems we enjoy these sounds, though it has harmful effects on Human Health and Environment. This paper focuses on study of noise pollution during Ganesh Festival and also its other causes and effects.

A REVIEW OF RECENT RESEARCH ON NON EDIBLE VEGETABLE OIL AS FUEL FOR CI ENGINE

 

Authors: Oza Nityam P.*, Dr. Rathod Pravin P.b Prof. Patel Nikul K.C

 

JERS/Vol. III/ Issue I/January-March, 2012/84-86

ABSTRACT
In India, Around 32 million hectare of waste land suitable for production of non edible vegetable oil and comparable property of this oil to diesel compelled many researchers to investigate potential and performance of this oil using Compression Ignition engine [3]. Performance of single and multi cylinder CI engine using neat vegetable oil, blending oil with diesel, methyl ester of oil, blending bio-diesel with diesel is measured and compared to diesel. In the present review paper attempt is made to overview the research work done on non edible oil obtained from Karanj, Jatropha and Neem and its performance in CI engine. Moreover, remarkable research work had been done to optimize the yield of bio-diesel by varying critical parameter of esterification process. Recently some researchers carried out experiments with addition of some gaseous fuel like CNG and hydrogen to intake air. In this study, the effect of addition of gaseous fuel to induction air is and optimization of esterification is also reviewed.

GREEN BUILDINGS

 

Authors: Avinash Shivajirao Pawar

 

JERS/Vol. III/ Issue I/January-March, 2012/87-90

ABSTRACT
The Kyoto protocol binded the developed countries to reduce the greenhouse gas emissions at least by 5% by 2008–2012 in order to tackle global warming and climate change. Some of the measures of the governments to achieve this goal are to promote new buildings construction and to retrofit existing buildings while satisfying low energy criteria. This means improving energy efficiency of buildings and energy systems, developing sustainable building concepts and promoting renewable energy sources.
“Green” or “sustainable” buildings use key resources like energy, water, materials, and land more efficiently than buildings that are just built to code. With more natural light and better air quality, green buildings typically contribute to improved employee and student health, comfort, and productivity. A green building depletes the natural resources to the minimum during its construction and operation.
The aim of a green building design is to minimize the demand on non-renewable resources, maximize the utilization efficiency of these resources, when in use, and maximize the reuse, recycling, and utilization of renewable resources. It maximizes the use of efficient building materials and construction practices; optimizes the use of on-site sources and sinks by bio-climatic architectural practices; uses minimum energy to power itself; uses efficient equipment to meet its lighting, air-conditioning, and other needs; maximizes the use of renewable sources of energy; uses efficient waste and water management practices; and provides comfortable and hygienic indoor working conditions. In sum, the following aspects of the building design are looked into in an integrated way in a green building.

AERODYNAMIC PERFORMANCE ASSESSMENT OF SEDAN AND HATCHBACK CAR BY EXPERIMENTAL METHOD AND SIMULATION BY COMPUTATIONAL FLUID DYNAMICS-
A REVIEW

 

Authors: Bhagirath Zala, Dr. Pravin P.Rathod, Prof. Sorathiya Arvind S.

 

JERS/Vol. III/ Issue I/January-March, 2012/91-95

ABSTRACT
The paper will describe comparative assessment of aerodynamic performance of two different popular hatchback and sedan car model by two distinct experimental strategies of aerodynamic predictions by conventional wind tunnel approach and its subsequent validation with advanced computational procedures, carried out on two popular model of sedan and hatchback car model. the experimental investigations will be performed on an open circuit suction type wind tunnel having a 30 cm x 30 cm x 100 cm test section, on a geometrically similar, reduced scale (1:20) aluminium car models, while the three dimensional computational analysis was carried out using with the help of software tools like ANSYS-CFX to simulate the flow of air around the automobiles and results like drag force, lift force, pressure and velocity distribution, wake region, turbulence kinetic energy etc will investigated for aerodynamic analysis.

COMPUTATIONAL FLUID DYNAMICS: AN EMERGING FIELD IN ENGINEERING

 

Authors: Avinash Shivajirao Pawar

 

JERS/Vol. III/ Issue I/January-March, 2012/96-100

ABSTRACT
With the advent and rapid development of high performance computing and numerical algorithms, computational fluid dynamics (CFD) has emerged as an essential tool for engineering and scientific analyses and design. Along with the growth of computational resources, the complexity of problems that need to be modeled has also increased. The simulation of aerodynamically driven, moving-body problems, such as store separation, maneuvering aircraft, and flapping-wing flight are important goals for CFD practitioners.
In recent years, modelling and simulation have been used to reduce certification cost and increase the margin of safety of flight tests for developmental weapons programs. Computational fluid dynamics (CFD) approaches to simulating separation events began with steady-state solutions combined with semi-empirical approaches. CFD truly became an invaluable asset with the introduction of Chimera overset grid approach. Using these methods, unsteady full field simulations can be performed with or without viscous effects.
The challenge with using CFD is to provide accurate data in a timely manner. Computational cost is often high because fine grids and small time steps may be required for accuracy and stability of some codes. Often, the most costly aspect of CFD, both in terms of time and money, is grid generation and assembly. This is especially true for complex store geometries and in the case of stores released from weapons bays. These bays often contain intricate geometric features that affect the flow field.

CRYPTOGRAPHIC MODEL FOR SECURE COMMUNICATION ON FPGA USING 32-BIT ARITHMETIC LOGIC UNIT AND MINIMIZED HARDWARE REQUIREMENT IN COMPLEX DATA ENCRYPTION ALGORITHM

 

Authors: Ms. Padvi Ritaben R, Ms .Vandana Shah, Mrs. Heena Patel

 

JERS/Vol. III/ Issue I/January-March, 2012/101-104

ABSTRACT
Security in networking is based on cryptography, the science and art of transforming messages to make them secure and immune to attack. Cryptography can provide confidentiality, integrity, authentication of message. Cryptography can also provide entity authentication. However, cryptographic algorithms impose tremendous processing power demands that can be a bottleneck in high-speed networks. The implementation of a cryptographic algorithm must achieve high processing rate to fully utilize the available network bandwidth. To follow the variety and the rapid changes in algorithms and standards, a cryptographic implementation must also support different algorithms and be upgradeable in field. Otherwise, interoperability among different systems is prohibited and any upgrade results in excessive cost. The ultimate solution for the problem would be an adaptive processor that can provide software-like flexibility with hardware-like performance. Efficient hardware design is essentially a resource allocation problem. When the key is generated in DES, the goal is, given the constraints, to find the optimal balance between required silicon area, operation throughput, energy consumption and design time to implement a system.

EFFECT OF CRYOGENIC TREATMENT ON MICROSTRUCTURE AND MICROHARDNESS OF AL6061-AL2O3 METAL MATRIX COMPOSITES

 

Authors:Panchakshari H.V., Dr. Girish D.P.

 

JERS/Vol. III/ Issue I/January-March, 2012/105-107

ABSTRACT
Cryogenically treated nonferrous metals will exhibit longer wear and more durability. During the metal-making process, when solidification takes place, some molecules get caught in a random pattern. But molecules do move about at subzero and deep cryogenic temperature slowly. This research is focused on the effect of cryogenic treatment on the microstructure changes and hardness properties of Al 6061 alloy and Al-AL2O3 metal matrix composites (MMCs) at -196°C for different duration. The execution of cryogenic treatment on both alloy and MMCs changed the distribution of b precipitates. The XRD crystallograms reveals that the cryogenic treatment can change the diffraction peak intensity of some crystal planes in MMCs. The influences of different process parameters on micro-hardness of Al alloy were compared and the results showed that cryogenic treatment could improve hardness of Al/AL2O3 composites.

EFFECT OF OXYGENATED FUEL ADDITIVES ON PERFORMANCE AND EMISSION CHARACTERISTICS OF CI ENGINES- A REVIEW STUDY

 

Authors:  Prajapati Simit B.*, Dr. Rathod Pravin P., Prof. Patel Nikul K.

 

JERS/Vol. III/ Issue I/January-March, 2012/108-110

 

ABSTRACT
One of the major sources of air pollution is constituents emitted from CI engines. So, the emissions from CI engines are serious concern on the ecological environment. It has occurred problems such as the ozone layer destruction, enhancement of the greenhouse effect and acid rain etc. It is mainly because of the obvious fuel-oil constituent effects on engine emission characteristics. The addition of oxygenated additives into fuel oil is one of the possible approaches for reducing this problem. Investigations have been carried out on reducing pollutants, in particular particulate matter and nitrogen oxides are critical to human health and welfare. Diethyl carbonate (DMC) and ethylene glycol monoacetate (EGM) are two hopeful alternative fuels as well as fuel additives to reduce smoke emission in normal CI engine, due to their high oxygen content. Previous experimental results shows that the reduction of power outputs for the DMC-EGM-diesel blends are smaller than that of the diesel. This paper describes review on oxygenated additive properties and their effects on exhaust emissions from CI engines. According to the results of previous investigations, oxygenated additives are an effective method for obtaining the reduction in the CO and HC emissions without a significant increase in the NOx emission.

STUDIES ON DEFLUORIDATION- A CRITICAL REVIEW

 

Authors:  Dr. Shrikant S. Patil, DR. Nitin W. Ingole

 

JERS/Vol. III/ Issue I/January-March, 2012/111-119

 

ABSTRACT
Several materials including aluminium salts, calcined alumina, magnesia, lime, activated carbon sulphonated carbonaceous materials and ion exchange resins have been screened for their utility in defluoridation of water. Aluminium impregnated cation exchange resin and sulphonated carbonaceous materials prepared from coconut shell, paddy husk have been found to have a significant defluoridation capacity. Aluminium sulphate (Filter alum) solution is also found efficacious. On the basis of results extensive investigations, different researchers have developed a simple and economical domestic defluoridation processes. This paper represents the critical review of the past work on defluoridation studies by using conventional and unconventional materials and different methodologies such as ion exchange, precipitation, adsorption etc.

BIT ERROR RATE IN THE SIMULATION OF DIGITAL COMMUNICATION SYSTEMS

 

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

 

JERS/Vol. III/ Issue I/January-March, 2012/120-126

 

ABSTRACT
The robustness of the proposed methods is illustrated by comparing the BER. Numerical simulations revealed good system performance. Finally, we consider experimental feasibility with both methods. Semianalytic defines an efficient procedure for computing exact semianalytic BER for modulation formats with circular constellations when the noise component of the decision variable has a circularly symmetric Gaussian distribution. The technique is demonstrated for 8PSK over the Digital Video Broadcasting-Satellite-Second Generation (DVB-S2) channel Semianalytic bit error rate (BER) estimation is a well-known method for evaluating the BER of a digital communication system. The main utility of the method is the significant time savings in computation relative to Monte Carlo simulation. Despite this advantage, no known reference defines the procedure for computing exact BER for M-ary phase shift keying (PSK) with ISI and AWGN using the semianalytic method. This letter defines an efficient procedure for computing exact semianalytic BER for modulation formats with circular constellations when the noise component of the decision variable has a circularly symmetric Gaussian distribution. In this thesis we do Comparative study of BER by both techniques and analysis the result by simulations. Also study of Monte Carlo simulation for digital modulation scheme and compare with Semianalytic technique. . We concentrate our effort on semi-analytical error rate evaluation for digital transmission. Also study of delay for BPSK and QPSK due to ISI & AWGN environment through Monte Carlo simulation. Also do study of sensitivity of QPSK to phase jitter and impact of symbol jitter. Analysis of semianalytic techniques for M-ary PSK with Rayleigh channel, Rician channel.

ASSESSMENT OF WATER QUALITY AND FEASIBILITY STUDIES ON WQI BY MATHEMATICAL MODELLING OF SHAHANUR RIVER OF ANJANGAON SURJI REGION (MAHARASHTRA STATE)

Authors:  Ms. Vandana Zombade Dr. Shrikant S. Patil Dr. Nitin W. Ingole

 

JERS/Vol. III/ Issue I/January-March, 2012/126-132

 

ABSTRACT
River Shahanur is one of important river of Vidarbha Region in Maharashtra state. Shahanur River, which is a right bank tributary of Purna River in main Tapi valley. River Shahanur originates near the village Vairat in the proximity of Chikhaldara, Amravati district in Maharashtra. According Water Quality Index model water quality of Shahanur River is fair for all sites selected for study by aggregative method and as per multiplicative method it medium for all the sites. According to the water quality index of water, quality of water of site 1, 2, 3,4,5,6,7,8,9 are fair, which is not fit for drinking without treatment. By providing the proper treatment, water can be made fit for drinking purposes.In this study attempts are made to carry out the physico-chemical assessment of river water at different location and to check the feasibility of water for drinking purpose.

 

THE OPTIMUM TIME-COST TRADE-OFF IN A pth DEGREE FIXED-CHARGE BI-CRITERION TRANSPORTATION PROBLEM.

 

Authors:  Samiran Senapati, Manjusri Basu

 

JERS/Vol. III/ Issue I/January-March, 2012/133-138

 

ABSTRACT
pth degree transportation problem is defined by transportation problem where the cost function is the product of p linear function. The pth degree fixed-charge bi-criterion transportation problem is an extension of the classical transportation problem in which a fixed cost is incurred, independent of the amount transported, along with p variable costs that are proportional to the amount shipped. Here the cost function is the product of p-linear functions along with fixed charge, so we termed this problem as pth degree fixed charge bi-criterion transportation problem. In this paper, an algorithm is presented to find the optimum time–cost trade-off pair in a pth degree fixed charge transportation problem giving same priority to both time and cost. The algorithm identifies efficient time cost trade-off pairs and thereby arrives at the conclusion that among the trade-off pairs, the optimum trade-off pair has the minimum D1-distance from the ideal point. A numerical example is given to illustrate the developed algorithm.

 

STUDIES ON DRYING AND SHRINKAGE OF DIFFERENT SHAPED FOOD PARTICLES IN A FLUIDIZED BED DRYER: EMPIRICAL MODELS AND STATISTICAL ANALYSIS

 

Authors: A. Sahoo *, S. Pandey and R. Tripathy

 

JERS/Vol. III/ Issue I/January-March, 2012/139-143

 

ABSTRACT
Drying constant and shrinkage constant of different shaped food particulates have been studied during fluidized bed drying. Three different geometrical shapes namely conical, rectangular, cylindrical and pentagonal were selected from different vegetables viz. Radish, Cut beans, Coccina grandis (Kundru) and Lady’s finger respectively. Attempt has been made to develop empirical for shrinkage ratio of feed sample from which the volumetric shrinkage coefficient was calculated. The results thus developed were finally compared with the reported literature (W. Senadeera, 2008). Attempt has also been made to develop expressions for drying efficiency by varying different system parameters (viz aspect ratio of feed sample, velocity of fluidizing medium, time and temperature of drying) on the basis of dimensional analysis which has been validated by statistical analysis. Again the observed shrinkage (reduction in volume) was compared with the shrinkage constant. Finally the results of drying and shrinkage were compared with the correlation and models available as per literature. The correlation coefficient shows the goodness of the fit and the comparison has been discussed by means of chi square test and standard deviations.

 

METHANOLYSIS OF HIGH FFA KARANJA OIL IN AN OSCILLATORY BAFFLED REACTOR

 

Authors: Y.C.Bhattacharyulu*, V.N.Ganvir, S.A.Bahegankar, Pankaj Nikhare

 

JERS/Vol. III/ Issue I/January-March, 2012/144-148

 

ABSTRACT
India currently imports about 70% of its petroleum requirements, spending more on foreign exchange. Vegetable oils have the potential to be considered as an appropriate alternative fuel as their properties are similar to that of diesel. The major problem associated with the direct use of vegetable oils is its high viscosity. One possible method to overcome this problem is transesterification of potential oils to produce esters i.e. biodiesel. Biodiesel is an alternative diesel fuel that is produced from vegetable oils and animal fats. It consists of the monoalkyl esters formed by a catalyzed reaction of the triglycerides in the oil or fat with a simple monohydric alcohol. Oscillatory baffled reactors are a novel type of reactor, it consisting of tube containing equally spaced orifice plate baffles. An oscillatory motion is superimposed upon the net flow of the process fluid, creating flow patterns conducive to efficient heat and mass transfer. That’s why in oscillatory flow reactor the reaction time is less that is 10 minutes at temperature in range of 20oC-25oC compared to batch reactor. Batch reactor takes minimum 1 hr and at temperature of about 50oC -55oC for reaction under similar conditions.

 

INVESTIGATION OF TENSILE STRENGTH OF Al 384.1 BASED SiCp REINFORCED METAL MATRIX COMPOSITE (MMC)

 

Authors: Harinder Pal Singh, Nripjit, Sarabjeet,  A.K.Tayagi

 

JERS/Vol. III/ Issue I/January-March, 2012/148-151

 

ABSTRACT
The present investigation has been made on MMC based Al 384.1 alloy using design of experiment by Taguchi technique. The test samples were taken by varying the particle size of reinforced SiC as 0.22µm, 0.106µm, 0.053µm, with percentage by weight 5%, 10% and 20%. An orthogonal array and the analysis of variance were employed to investigate the influence of process parameters on tensile strength. The observed results of orthogonal array, Analysis of Variance (ANOVA), interaction can be verified by confirmation test.