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

 

 
 

TO LIMIT THE FAULT CURRENT USING UNIFIED POWER QUALITY CONDITIONER

 

Authors: Mr. Marshall Arockia Dass .P, Dr. A. Peer Fathima

 

JERS/ Volume II/ Issue IV/October-December, 2011/01-09

 

ABSTRACT
This paper deals with unified power quality conditioners (UPQC’s), which aim at the integration of series-active and shunt-active filters. The main purpose of a UPQC is to compensate for voltage flicker/imbalance, reactive power, negative sequence current, and harmonics. In other words, the UPQC has the capability of improving power quality at the point of installation on power distribution systems or industrial power systems. This paper discusses the control strategy of the UPQC, with a focus on the flow of instantaneous active and reactive powers inside the UPQC. The present work discusses the compensation principle and different control strategies (PI, FUZZY) of the UPQC in detail. The control strategies are modeled using MATLAB/SIMULINK. The performance is also observed under influence of utility side disturbances such as sag, swell, flicker and spikes. The simulation results are listed in comparison of different control strategies and for the verification of results.

DESIGN OF A FUZZY LOGIC CONTROLLER FOR ADAPTIVE EQUALIZATION OF SOUND USING FLETCHER-MUNSON CONTOURS

 

Authors: Anwar Shahzad Siddiqui

 

JERS/ Vol. II/ Issue IV/October-December, 2011/10-14

 

ABSTRACT
This paper proposes a strategy to obtain Equal Loudness Contours using Fuzzy Logic Controller [4][5] for the cases when crisp sound of equal decibels is required at all times. Equal Loudness contours were proposed by Fletcher & Munson [1]. These contours have been used as the base for automatic or adaptive equalization of sound. The main aim of this paper was to obtain Fletcher-Munson Contours [1] through Fuzzy Logic Controller [4] [5]. Simulation was done using MATLAB v6.1. [2]

MANAGEMENT OF INFORMATION LIFE CYCLE

 

Authors: Dr. Priyanka Sharma

 

JERS/ Vol. II/ Issue IV/October-December, 2011/15-16

 

ABSTRACT
Information derived from data is very important for decision making in service and non service sectors . This ultimately leads to customer satisfaction which in turn gives good return in term of profit and goodwill. Thus, managing this information life cycle which forms framework of IT infrastructure is very important which consists of the storage and information policies that drive management processes. In this paper description of life cycle of infareotmion is presented and how it can be made more intelligent for handling decisions at levels : operational, tactical and tragic is given.

REMOVAL OF HEAVY METALS BY BIOSORPTION–AN OVERALL REVIEW

 

Authors: L. Nageswara Raoa , Dr G.Prabhakara

 

JERS/ Vol II/ Issue IV/October-December, 2011/17-22

 

ABSTRACT
Decontamination of heavy metals in the soil and water around industrial plants has been a challenge for a long time. A number of efficient methods have been developed for the removal of heavy metals from liquid wastes such as precipitation, evaporation, electroplating, ion exchange, membrane processes, etc. However, these methods has several disadvantages such as unpredictable metal ion removal, high reagent requirement, generation of toxic sludge, etc. The removal of heavy metals from our environment especially wastewater is now shifting from the use of conventional adsorbents to the use of biosorbents. Biosorption is a process, which represents a biotechnological innovation as well as a cost effective tool for removing heavy metals from aqueous solutions. The pollutants of concern include uranium, selenium, zinc, arsenic, cadmium, lead, chromium, mercury, gold, silver, copper and nickel. These toxic materials may be derived from mining operations, refining ores, sludge disposal, fly ash from incinerators, the processing of radioactive materials, metal plating, or the manufacture of electrical equipment, pesticides or preservatives, paints, alloys, batteries. Hence, easy, effective, economic and ecofriendly techniques are required for fine-tuning of wastewater treatment. In this present review investigates that the bases for the biosorption, mechanism and its necessity for the removal of heavy metals.

A MODULAR APPROACH OF CAN BUS IMPLEMENTATION IN AN EMBEDDED SYSTEM FOR A RESIN COATED SAND PLANT

 

Authors: M. V. Gavade, S. B. Patil

 

JERS/ Vol II/ Issue IV/October-December, 2011/23-26

 

ABSTRACT
CAN, Controller Area Network is widely used in industrial control applications , where robust environment exist ,CAN2.0 is designed by BOSCH and INTEL for automobile communication as a serial bus .It is serial network that efficiently support distributed real time control with very high level of data integrity. Advantages of this bus are - 1.It gives high speed up to 1 Mbps. 2. Low cost, multiplex wiring between nodes. 3. Automatic bus arbitration and error definition. Because of these advantages it is right selection in real time control such as Textile industries Data Monitoring and Logging with cost effective manner. In such applications, this protocol plays an important role can be connected to central monitoring processor (Master Control ) for example different zones of resin coated plant needs different environmental conditions such as temperature and humidity is very vital as proper resin coating to a sand is concerns. These zones connected to central control processor (master) This can be achieve by CAN BUS networking, screen, where graphical user interface(GUI ) is used to get exact status of zone in real time monitoring.. At each zone, separate dedicated processors are used to get information of the zone and these processors are connected through CAN BUS serial interface with master/Main Processor, .Using the parameters of each zone on Central Control( Master Processer) we can store information of respective zone. This information is further used for quality of sand, by interfacing master processor to our main computer. Due to the Implementation of this system, large amount of time & information is easily accessed at remote place.

AMALGAM VERSION OF ITINERANT AUGMENTED REALITY

 

Authors: Akhil Khare, Shashank Sharma, Dr. Umesh Kumar Singh

 

JERS/ Vol II/ Issue IV/October-December, 2011/27-30

 

ABSTRACT
Augmented reality is a powerful user interface technology that augments the user’s environment with computer generated entities In this venture we investigate building indoor location based applications for a mobile augmented reality system. Augmented reality is a natural interface to visualize special information such as position or direction of locations and objects for location based applications that process and present information based on the user’s position in the real world. To enable such applications we construct an indoor tracking system that covers a substantial part of a building. It is based on visual tracking of fiducial markers enhanced with an inertial sensor for fast rotational updates This is especially problematic for mobile augmented reality systems, which ideally require extremely precise position tracking for the user’s head, but which may not always be able to achieve the necessary level of accuracy. While it is possible to ignore variable positional accuracy in an augmented reality user interface, this can make for a confusing system; for example, when accuracy is low, virtual objects that are nominally registered with real ones may be too far off to be of use. Our system uses inferencing and path planning to guide users toward targets that they choose.

STUDY OF DIFFERENT HERBS FOR ANTIBACTERIAL ACTIVITY IN WATER PURIFICATION

 

Authors: S. B. Somani, Dr. N. W. Ingole, Dr. N. S. Kulkarni

 

JERS/ Vol II/ Issue IV/October-December, 2011/31-34

 

ABSTRACT
The study uses the concept of water purification by herbs, and was inspired by ancient Indian literature. The antimicrobial activity of Anjan (Hardwickia Binata), Mutha (Cyperus Rotundus), Ushir (Andropogon Muricatus), and Rajkashtaka (Luffa Cyllindrica) were tested by Disc Diffusion Method (Kirby –Bauer Method) after extracting the dried material powder of natural herbs in 50% alcohol (ethanol). An antibacterial activity was observed in all herbs used. Most effective an antibacterial activity was observed in Anjan. In all herbs maximum removal of E.coli was found at 30 minutes contact time onwards. The maximum percentage removal of E.coli were found 82.05% , 48.72% , 41.03% & 41.03% by using Anjan, Mutha, Rajkashtaka and Ushir herbs extract respectively , at 30 minute optimum contact time. The optimum removal of E.coli was observed at 1% concentration of extract of different herbs used in this study.

LABORATORY SCALE STUDIES ON DOMESTIC GREY WATER THROUGH VERMIFILTER AND NON-VERMIFILTER

 

Authors: A. M. Kharwadea,  Isha. P. Khedikarb

 

JERS/ Vol II/ Issue IV/October-December, 2011/35-39

 

ABSTRACT
Water scarcity is worldwide problem. Water is vital for survival of living being. Greywater reuse is an attractive option. The reuse of grey water for non-potable water application is a potential solution for water deprived region world- wide .Therefore an attempt is made to reuse greywater, so as to reduce demand of fresh water. In present study, laboratory scale single stage filters were designed. Domestic grey water was passed through vermifilter and non-vermifilter. Domestic grey water was collected from the two storied building (house-1) and four storied building (house-2). Study is aimed to test the suitability of vermifilter and non-vermifilter for parameters viz. pH, efficiency removal of BOD and COD as well as Suspended solids in effluent grey water. From the experiment data it was found that percentage reduction in concentration of BOD and COD in vermifilter was more efficient than non-vermifilter. In vermifilter suspended solid are trapped on the top of the vermifilter and proceed by earthworm and fed to the soil microbes immobilized in the vermifilter. pH was changed from acidic to neutral by earthworm in vermifilter while pH remain same in effluent as in influent in non-vermifilter.

DISINFECTION OF WATER BY USING SODIUM CHLORIDE (NaCl) AND SODIUM HYPOCHLORITE (NaOCl)

 

Authors: S. B. Somani, Dr. N. W. Ingole, Dr. N. S. Kulkarni

 

JERS/ Vol II/ Issue IV/October-December, 2011/40-43

 

ABSTRACT
Safe water is vital for improving the health and quality of life and for alleviating poverty. Non–availability of safe and inadequate water in human settlements affects physical well being of the people especially living in rural / tribal area. Disinfection of water is the most essential single step which can prevent epidemics of water borne diseases. In the present research work use of Sodium Chloride (NaCl) and Sodium Hypochlorite (NaOCl) is made for the disinfection of water. It is observed that for 30 min. contact time percentage reduction in bacterial population was found 82.05 % by using Sodium Chloride (NaCl) and 89.74% by using Sodium Hypochlorite (NaOCl).

EXPERIMENTAL INVESTIGATIONS OF DIESEL ENGINE USING NEEMOIL
 

Authors: A. Swarna Kumari, Ch.Penchalayya, A. V. Sitarama Raju,Ravikumar Puli

 

JERS/ Vol II/ Issue IV/October-December, 2011/44-47

 

ABSTRACT
Diesel engines are the major source of transportation, power generation, marine applications etc. Hence diesel is being used extensively, but due to gradual depletion of world petroleum reserves and the impact of environmental pollution of increasing exhaust emissions, there is an urgent need for suitable alternative fuels for use in diesel engines. Intensive research is required to be carried out to find a viable and economical alternative to diesel oil which could be directly used in a conventional C.I. engine. In this direction vegetable oils are best suited for its immediate use in conventional diesel engine. But the biggest hindrance to the easily adaptation of these vegetable oils is high viscosity and low volatility. Physical properties of vegetable oils are very close to that of diesel fuel. Methods such as blending with diesel fuel, microemulsification, pyrolysis/cracking, heating of oil and transesterification are known to improve the combustion characteristics of vegetable oils by lowering its viscosity.
The objective of this paper is to evaluate the performance and emission characteristics of Neem oil blends with diesel Engine.

EFFECT OF SHAPE AND SIZE OF AGGREGATE ON THE PROPERTIES OF PERVIOUS CONCRETE

 

Authors: A.K. Jain, Dr. J.S. Chouhan,  S.S. Goliya

 

JERS/ Vol II/ Issue IV/October-December, 2011/48-51

 

ABSTRACT
This paper presents the laboratory results of the study undertaken to determine the effect of shapes and size of aggregates on porosity, unit weight, strength and permeability of pervious concrete. Shape of aggregate is measured in terms of their angularity number. Angularity or absence of rounding of the particles of an aggregate is a property which is of importance because it affects the porosity, surface area in contact with each other in the matrix of ingradients and ease of handling of a mixture of aggregate and binder. It is a laboratory method intended for comparing the properties of different aggregates for mix design purposes. The result indicates that various properties of pervious concrete vary as a function of angularity number of aggregates used. It is found that for all sizes of course aggregates used in the study, aggregate with less angularity number produce mix with average compressive strength greater then the aggregate with higher angularity number. The study suggest that angularity number of aggregates may be considered as an important parameter in deciding the suitability of course aggregate to prepare pervious concrete mix in order to achieve better strength and permeability.

ANALYSIS OF A PSPICE SIMULATED TWO-STAGE POWER CONVERTER FOR SWITCHED RELUCTANCE MOTOR DRIVES

 

Authors:Souvik Ganguli*

 

JERS/ Vol II/ Issue IV/October-December, 2011/57-62

 

ABSTRACT
This paper presents the PSPICE simulation of a two stage power converter topology used for switched reluctance motor drives. A general introduction of this converter, its operating principle as well as its merits, demerits and applications are briefed in this article. The simulation for finding out the phase current rise and fall time and to perform the Fourier analysis is carried out using PSPICE at an operating temperature of 27 C. The total harmonic distortion is also calculated for this drive converter. The voltages across the different nodes and the currents across the different voltage sources have been found out from the SPICE representation of the power converter circuit. The operating point information is also obtained for the different diodes and the BJTs used as per the SPICE circuit of the converter.

ANALYSIS AND ASSESSMENT OF FLOW BEHAVIOUR OF CLSM WITH LYSE RULE AS BASIS

 

Authors: Dr. Udayashankar, B. C, Dr. M. V. Renukadevi and Dr. Radhakrishna

 

JERS/ Vol II/ Issue IV/October-December, 2011/63-68

 

ABSTRACT
Strength is not the only property for which cement based composites are processed. There are many practical situations where enhanced workability is required for placement with the requirements of strength being far lower than normal for which cement mortars and concretes are processed. These are Controlled Low Strength Materials (CLSM) with required flow characteristics such as self-leveling ability, free from settlement after hardening with potential to develop low strength in the range of 1 to 10 MPa. Presently the use of CLSM in practice is ahead of development of appropriate technology to handle a very wide spectrum of practical needs of flow characteristics and to handle combinations with a wide spectrum of materials. In this investigation it is attempted to develop a phenomenological model within the basic framework of Lyse Rule, already explored in concrete technology. The basic tenet of this law is that the basic property of preset mix is in a particulate state similar to saturated clays. In this fresh state, shearing resistance of the mix is a function of total water content similar to saturated clays. Spread flow test on mixes with low cement content and high volume fly ash and GGBFS combinations with rock dust as fine aggregate as well as with only cement and fly ash pastes are conducted. Thus generated data is analyzed to advance a phenomenological model. The validity of this model is verified with an independent set of data generated for this purpose.

COMPARISON OF THE VARIOUS CONVERTER TOPOLOGIES FOR A THREE PHASE SWITCHED RELUCTANCE MOTOR DRIVE

 

Authors: Souvik Ganguli*

 

JERS/ Vol II/ Issue IV/October-December, 2011/69-71

 

ABSTRACT
The paper presents the comparison of the four topologies of the power converter main circuit for a three-phase 12/8 structure switched reluctance motor drive, such as the asymmetric bridge circuit, the bifilar winding circuit, the resistance commutation circuit and the common switch circuit. The comparison of the four topologies are made in the rated voltage of the switches, the rated voltage of the flywheel diodes, the average supplied voltage of the phase winding, the average commutated voltage of the phase winding, the numbers of the switches and the independence of the circuit. In this paper it is also explained how the fault tolerant control of switched reluctance motor drive is possible. It is also explained why asymmetric bridge converter is preferable over the other topologies for higher speeds.

AN OVERVIEW OF METAL MATRIX COMPOSITE: PROCESSING AND SIC BASED MECHANICAL PROPERTIES

 

Authors: Hartaz Singh, Sarabjit, Nrip Jit, Anand K Tyagi

 

JERS/ Volume II/ Issue IV/October-December, 2011/72-79

 

Abtract

In view of large interest in the improve of Al/Al alloy based Metal matrix Composite and high-temperature ceramics on the base of silicon carbide, a comprehensive review of the data on structure, properties and the known methods of processing of silicon carbide seems timely. The most striking feature of silicon carbide is its polytypism, i.e. formation of a great number of structural changes without any change in composition. Although this feature of silicon carbide was extensively studied, no systematic up to date analysis was done. The widely used reinforcing materials for these composites are silicon carbide, aluminum oxide and graphite in the form of particles or whiskers. The ceramic particles reinforced aluminum composites termed as new generation material and these tailored and engineered with specific required properties for specific application requirements. However, Al-SiC alloys based MMC provides significantly enhanced mechanical properties, high wearing resistance of the SiC/Al alloy composite is due to added SiC whiskers to the aluminum matrix and the aluminum diffuses into the SiC whisker, which leads to a high bonding strength between the whisker and matrix. The aim of this paper is to review the current research and development of Al-SiC based alloy MMC and highlighted the basic properties of silicon carbide and the advantages of using SiC over other Al/Al alloy based Metal Matrix by scrupulously choosing, balance of reinforcing phases and particularly focusing on SiC content, together with some technological reason of the manufacturing process, it is possible to optimize the properties of metal matrix composites.

COMPARATIVE STUDY OF DIFFERENT SWITCHING CIRCUIT TOPOLOGIES FOR LINEAR SWITCHED RELUCTANCE MOTORS

 

Authors: Souvik Ganguli*

 

JERS/ Vol II/ Issue IV/October-December, 2011/80-83

 

ABSTRACT
The Linear Switched Reluctance Motor (LSRM) has never been widely used for direct drive motion control applications partly due to its highly non-linear characteristics and non standard drive configuration. In order to obtain the optimum converter configuration, five topologies are analysed here in detail and compared based on their overall performance. The best converter has to be chosen there from based on the applications for which LSRM is chosen.

COMPUTATIONAL TOOL FOR WIND PRESSURE AND FORCES ON A MULTISTORY COMMERCIAL COMPLEX

 

Authors: N G Shilu, Dr. H S Patel

 

JERS/ Vol II/ Issue IV/October-December, 2011/84-87

 

ABSTRACT
Indian standard was first published in 1957 for the guidance of civil engineers, designers and architects associated with the planning and design of buildings. It included the provisions for the basic design loads (dead loads, live loads, wind loads and seismic loads) to be assumed in the design of the buildings. In its first revision in 1964, the wind pressure provisions were modified on the basis of studies of wind phenomenon and its effect on structures. The latest rivision of code pertaining to wind loads was published in 1987. To eleminate some limitation of prevailing code, GSDMA has proposed draft code for IS:875(part-III). Here in this paper a typical example of multistoreyed building is presented for application of GSDMA proposed draft code. The computational tool is developed for the purpose using MS Excel. The outcome obtained from tool are validated with solved problem from explanatory of GSDMA draft code.

PSPICE ANALYSIS OF A VARIABLE DC-LINK VOLTAGE WITH BUCK-BOOST CONVERTER TOPOLOGY FOR SWITCHED RELUCTANCE MOTOR DRIVE

 

Authors: Souvik Ganguli*

 

JERS/ Vol II/ Issue IV/October-December, 2011/88-92

 

ABSTRACT
This paper addresses the PSPICE analysis of a variable dc link voltage with buck-boost converter topology used for a switched reluctance motor drive. A general introduction of this converter, its operating principle as well as its merits and demerits are discussed in this article. The simulation for finding out the phase current rise and fall time and to perform the Fourier analysis is carried out using PSPICE at an operating temperature of 27 C. The total harmonic distortion is also calculated for this drive converter. The voltages across the different nodes and the currents across the different voltage sources have been found out from the SPICE circuit. The operating point information is also obtained for the different diodes and the BJTs used as per the SPICE circuit of the converter.

COOPERATIVE COMMUNICATION IN COGNITIVE RADIO NETWORKS

 

Authors: Ms Seema Mishra, Ms Sonali Kathare, Ms Swati Patil

 

JERS/ Vol II/ Issue IV/October-December, 2011/93-97

 

ABSTRACT
Transmit diversity generally requires more than one antenna at the transmitter. However, many wireless devices are limited by size or hardware complexity to one antenna. Cooperative communications have been proposed to exploit spatial diversity gains inherent in multi-user wireless systems without the need of multiple antennas at each node. Cognitive radio (CR) is a form of wireless communication in which a transceiver can intelligently detect which communication channels are in use and which are not, and instantly move into vacant channels while avoiding occupied ones. This optimizes the use of available radio-frequency (RF) spectrum while minimizing interference to other users. In its most basic form, CR is a hybrid technology involving software defined radio (SDR) as applied to spread spectrum communications.

PSPICE ANALYSIS OF R-DUMP CONVERTER FOR SWITCHED RELUCTANCE MOTOR DRIVES

 

Authors: Souvik Ganguli*

 

JERS/ Volume II/ Issue IV/October-December, 2011/98-102

 

ABSTRACT
This paper presents the PSPICE analysis of a R-Dump converter used for switched reluctance motor drive. A general introduction of a R-Dump converter and its operation are discussed in this article. The paper also highlights the various advantages, disadvantages and applications of this converter topology. The PSPICE simulation is carried out for the analysis of the phase current, Fast Fourier Transform of the phase winding and calculation of the total harmonic distortion for the input current at an operating temperature of 27 C. The voltages across the different nodes and the currents across the different voltage sources have been found out from the SPICE circuit. The operating point information is also obtained for the different diodes and the BJTs used as per the SPICE circuit of the converter.

INFLUENCE OF CURING CONDITIONS ON COMPRESSIVE STRENGTH OF CEMENT ADDED LOW LIME FLY ASH BASED GEOPOLYMER CONCRETE

 

Authors: B. Siva Konda Reddy, K. Naveen Kumar Reddy

 

JERS/ Vol II/ Issue IV/October-December, 2011/103-109

 

ABSTRACT
In order to address environmental effects associated with Portland cement, there is need to develop alternative binders to make concrete. An effort in this regard is the development of geopolymer concrete, synthesized from the materials of geological origin or by product materials such as fly ash, which are rich in silicon and aluminum. This paper presents the influence of curing conditions on compressive strength of Cement added geopolymer concrete prepared from low lime based fly ash and a mixed alkali activator of sodium hydroxide and sodium silicate solution. An increase in compressive strength of the concrete samples is observed when fly ash is replaced with the cement and when the samples are cured in water.

COMPARISON OF SINGLE-SWITCH PER PHASE CONVERTER TOPOLOGIES FOR SWITCHED RELUCTANCE MOTOR DRIVES

 

Authors: Souvik Ganguli*

 

JERS/ Vol II/ Issue IV/October-December, 2011/110-112

 

ABSTRACT
This paper addresses the main considerations in the single-switch-per-phase converter for a switched reluctance motor (SRM) drive with particular attention to the choice of converter topology and the type of switching devices. A single-switch per phase converter is the most appropriate converter configuration for low cost applications due to its relatively low component count and simplicity of the drive circuits when compared with the two-switch per phase configuration. Various types of single-switch per phase converter topologies have been proposed till date. These include the bifilar winding unipolar converter, the C-Dump converter, the single-switch dual supply converter and the single-switch suppression resistor converter.

MICROCONTROLLER BASED GESTURE RECOGNITION SYSTEM FOR THE HANDICAP PEOPLE

 

Authors:  Bhavina Patel, Vandana Shah, Ravindra Kshirsagar

 

JERS/ Vol II/ Issue IV/October-December, 2011/113-115

 

ABSTRACT
“Speech” and “gestures” are the expressions, which are mostly used in communication between human beings. Learning of their use begins with the first years of life. In human communication, the use of speech and gestures is completely coordinated. Machine gesture and sign language recognition is about recognition of gestures and sign language using gloves. A number of hardware techniques are used for gathering information about body positioning; typically either image-based (using cameras, moving lights etc) or device-based (using instrumented gloves, position trackers etc.), although hybrids are beginning to come about. However, getting the data is only the first step. The second step, that of recognizing the sign or gesture once it has been captured is much more challenging, especially in a continuous stream. In fact currently, this is the focus of the research.

ART OF MAKING AND MANAGING VIRTUAL TEAMS

 

Authors: Dr. T. Munirathnam Naidu, Dr. G. Ramesh

 

JERS/ Vol II/ Issue IV/October-December, 2011/116-119

 

ABSTRACT
For attracting best talent in time and sustain it, organizations need to apply emerging trends among the International workforce. Virtual Teaming is one of the current, most important techniques in this direction. As technology grows by leaps and bounds, it will be wise for enterprises to operate in a virtual environment to become global and meet cut – throat competition. Business constraints dictate that virtual teams are viable to reap the benefits of increased, globalized scale of operations. People with role-specific competencies will know more than managers and play critical roles in almost every organization. Admittedly, these highly skilled techies are the brains behind the amazing software and accompanying hardware that run many companies and teams. Employees and leaders have typically viewed dispersion as a liability than an opportunity. Hence Virtual team management becomes a real challenge to organizations. Building and maintaining successful Virtual Teams require a powerful structure, comprehensive organizational policies and dynamic strategies. In the present scenario, as the technology moves fast due to global innovation, employers are changing plans and processes in quicker cycles than before.

BLOOD PRESSURE AND ECG MONITORING SYSTEM BASED ON INTERNET

 

Authors:  Swati Y.Gaikwad, Prof. Ms. Revati Shriram

 

JERS/ Vol II/ Issue IV/October-December, 2011/120-125

 

ABSTRACT
The objective of the work is to make a simple wireless ECG and BP transmission system for ambulance use. A Wireless electrocardiogram (ECG) / blood pressure (BP) telemonitor system focused on integration of biopotential amplifiers, oscillometric measurement of blood pressure, microcontroller devices, programming methods, wireless transmission, signal filtering and analysis, interfacing, and long term memory devices (24 hours) to develop a ECG/BP telemonitor. A long-term monitoring facilitates the capturing of sporadic events and therefore is an important contribution for the improvement of the therapy and, consequently, for the health of the patients. The task has been accomplished by Internet technology, ECG detector, NIBP module and personal computer as monitor. The specific objective of this device is to facilitate the long term continuous monitoring and recording of ECG and blood pressure signals. This device is able to acquire ECG/BP, transmit them wirelessly to a PC. It is also capable of calculating the heart rate (HR) in beats per minute, and providing systolic, diastolic and mean blood pressure values. Incorporation of GPRS technology allows wireless transmission to health or control centers.

LEACHATE RECIRCULATION TECHNIQUE FOR TREATMENT OF LEACHATE

 

Authors:  Mayur A. Jirapurea, Isha. P. Khedikarb,  Pankaj Suresh Wadhwani

 

JERS/ Vol II/ Issue IV/October-December, 2011/126-131

 

ABSTRACT
The aim of this project was to conduct a study on leachate characterization and to treat it by leachate recycling or recirculation to achieve the highest MSW biodegradation rate and to observe the BOD, COD levels. To this end the various chemical characteristics of the waste were studied. Initially tests were carried out on Municipal solid waste. The tests were conducted in order to check the pH, volatile solids. Next, soil analysis was done to check the type of soil. Tests were conducted like pH, moisture content, permeability, density and specific gravity. The resulting soil was found to be the Black Cotton soil. Lastly the significant parameters (via, pH, BOD, COD, Alkalinity, hardness, TS and TDS ) were analyzed to check the effects of recirculation on leachate. .This was carried out over a period of 110 days. The experiment to generate leachate artificially and recirculation was conducted in a lab scale model. The generated leachate parameters were analyzed. All the tests were carried out at GHRC Laboratory. These tests showed a significant change in the levels of pH, BOD,COD, hardness, TDS. A few of tests on the leachate were carried out at the Water Quality Lab level 2, Hydrology Department, Irrigation Department Laboratory.

EFFECT OF CUSHION ON COMPOSITE PILED –RAFT FOUNDATION

 

Authors:  V. J. Sharma*, S. A. Vasanvala,  C. H. Solanki

 

JERS/ Vol II/ Issue IV/October-December, 2011/132-135

 

ABSTRACT
In order to mobilize shallow soil to participate in the interaction of piled raft foundation sufficiently, the concept of piled raft has been modified to new type of foundation named composite piled raft. In the system of composite piled raft, the short piles made of flexible materials were used to strengthen the shallow soft soil, while the long piles made of relatively rigid materials were used to reduce the settlements and the cushion beneath the raft was used to redistribute and adjust the stress ratio of piles to subsoil. Finite element method was applied to study the behavior of this new type of foundation subjected to vertical load. This paper focuses on general effect of cushion on properties of composite piled raft foundation system such as axial stresses on piles, superimposed stress on subsoil and settlements of piles and subsoil.

STUDY OF LAND USE CHANGES THROUGH STOCHASTIC PROCESS- A CASE STUDY IN PLATEAU REGION OF MAYURBHANJ DISTRICT, ORISSA

 

Authors: Uttam Ghosh and Prof Dilip Kumar Khan

 

JERS/ Vol II/ Issue IV/October-December, 2011/136-138

 

ABSTRACT
Nature is full of mosaic. Landscape is not exceptional to this order. Different land use pattern have evolved due to variations in anthropogenic activities. This has created environmental complexity. The societal demand in many cases is responsible for change in land use pattern which leads to changes in landscape. Since the change is time dependent mathematical methods are used to predict such changes. The study undertaken in undulating plateau region of Mayurbhanj district, Orissa indicates that settlement area has increased at the cost of farmland. The environmental complexity arises out of this change has brought a negative impact on forested land.

EMAIL SCRIPTING LANGUAGE WITH MAIL MERGE

 

Authors: Prof. (Dr.) Khanna SamratVivekanand Omprakash

 

JERS/ Vol II/ Issue IV/October-December, 2011/139-140

 

ABSTRACT
This paper represents how email can be send by storing into files and configure with SMTP like mail merge of the MS-Word. Our software supports scripting language and database also. Here we will write the content into the body and also the fields in between <<>>. Here it will take automatically the record as per the requirements and condition. Scripting language supports DSN-less connection. In the background the script will take care of database connection. The output of the program will be stored into a file and then it will be send to the different users with different records. By configuring with scripting language and SMTP, we can easily send all the emails to different users with different contents. It creates a new concept in the field of electronic email system. Here we can manage the emails by putting restrictions on a computer due to memory for sending bulk mails

CREEP COMPATIBILITY STUDY FOR GEOSYNTHETICS IN COMPACTED FILL

 

Authors: Jigisha M. Vashi, A. K. Desai, C. H. Solanki

 

JERS/ Vol II/ Issue IV/October-December, 2011/141-147

 

ABSTRACT
In the last twenty five years, the use of geosynthetics, has been continuously increasing in different geotechnical engineering applications such as reinforced slopes, retaining walls, embankments etc. In many of these applications, geosynthetics are subjected to either tensile or compressive load throughout their service life. Geosynthetics are polymeric materials which comprise of viscoelastic properties. Under constant loading, geosynthetics would exhibit creep strain which may potentially cause damage to the corresponding structural system. The extent of the creep strain over years depends on the magnitude of the loading as well as the type of polymer and manufacturing process of the geosynthetics. Geosynthetics are commonly made from polypropylene (PP), high density polyethylene (HDPE) and polyester (polyethylene terephthalate - PET). Geosynthetics are susceptible to creep, which leads to time-dependent strains and potentially induces deformation of the structural systems. In the design of geosynthetics, one of the major issues is to apply the appropriate creep reduction factor. Contrary, higher activation energies were resulted from the short-term accelerated tests in comparison to the long-term tests for geosynthetics. The reduction factors and the creep strains of the PET geosynthetics are much lower than those of HDPE and PP geosynthetics at the same ultimate tensile strength. As a result, the HDPE and PP geosynthetics is more sensitive to creep than the pet geosynthetics. Also, the PP and HDPE geosynthetics went through the primary, secondary and tertiary creep prior to the rupture, whereas only primary creep and rupture were detected in the PET geosynthetics. Advantages and disadvantages of different creep test methods are also discussed. The need to evaluate the creep compatibility and life time of geosynthetic materials made of polyester, other than polypropylene has been evident in recent years. Geosynthetics have no standardized technology for predicting their long term durability or creep compatibility. This paper will discuss physical methods best suited to evaluate the creep compatibility of geotextile materials. The objective of this paper is to review current progress and evolve revised criteria for permissible creep in design of reinforced earth fill.

DYNAMIC STABILITY OF A TIMOSHENKO BEAM WITH LOCALISED DAMAGE DUE TO PARAMETRIC EXCITATION AND TO BOUNDARY CONDITIONS

 

Authors: S. C. Mohanty

 

JERS/ Vol II/ Issue IV/October-December, 2011/148-165

 

ABSTRACT
This work is an attempt to study the dynamic stability of a uniform Timoshenko beam with localized damage subjected to parametric excitation under various boundary conditions. Finite element method along with Floquet’s theory has been used to carry out the analysis. Instability zones for different locations of the damage and for various boundary conditions of the beam have been established to study the effects of different parameters namely extent of damage, damage location, boundary conditions and static load factor. Presence of damage always increases the instability of the beam. Increase in static load component has a destabilizing effect for all boundary conditions considered. It is observed that the dynamic stability behavior of the beam depends not only upon the boundary conditions but also on the location of the damage.

PERFORMANCE EVALUATION OF M-ary PSK BY SEMIANALYTIC TECHNIQUE

 

Authors: Abhay Upadhyay, Mohan Narbariya, Durgesh Pansary, Apurva Choubey, Lalita Gupta, J.S. Yadav

 

JERS/ Vol II/ Issue IV/October-December, 2011/166-1725-162

 

ABSTRACT
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.
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. 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.

A STUDY ON EFFECT OF FIBER ON CEMENT KILN DUST (CKD) STABILIZED SOIL

 

Authors: M. Heeralal, G.V. Praveen

 

JERS/ Vol II/ Issue IV/October-December, 2011/173-177

 

ABSTRACT
An experimental program was conducted to investigate the effects of discrete short polypropylene fiber (PP-fiber) on the strength and mechanical behavior of soil and soil+ CKD mix. In the present investigation the soil samples were prepared at three different percentages of PP-fiber content (i.e. 0.25%,0.5%,1.0% by weight of the soil) and three different percentages of cement kiln dust content ( i.e. 3%,5%,8% by weight of the soil) and unconfined compressive strength, direct shear test and C.B.R tests were carried out. U.C.C tests were carried out after a curing period of 28 days. The test results indicated that the inclusion of fiber reinforcement within soil and soil-CKD mix caused an increase in the unconfined compressive strength (UCS), shear strength, axial strain at failure, decreased the stiffness, and changed the elemented soil’s brittle behavior to a more ductile one and C.B.R value increased even for unsoaked condition.

THE EFFECT OF FILLER ON THE FRICTION PERFORMANCE OF AUTOMOTIVE BRAKE FRICTION MATERIALS

 

Authors: S. Manjunath Yadav, S. Basavarajappa, Chakrasali Chandrakumar, K.V.Arun

 

JERS/ Vol II/ Issue IV/October-December, 2011/178-182

 

ABSTRACT
The need for the use of newer materials to combat wear situations has resulted in the emergence of polymer based systems. The polymers and their composites are being increasingly employed in view of their possessing good strengths and low densities. Besides, wider choice of material and ease of manufacturing make them an ideal case for engineering applications. Despite the number of research studies completed on the mechanism of friction in automotive brake lining materials, the phenomenon is still not fully understood. Complex mechano-chemical processes occurring on the friction interface of a composite friction material make it difficult to understand the correlation between the formulation of brake lining and the frictional performance. This paper concentrates on the comparative frictional performance of glass-epoxy composite with influence of silicon carbide particles (SiCp) and graphite (Gr) filler are experimentally investigated under varying applied load, sliding distance and sliding velocity using a pin-on-disc apparatus. For increased applied load situation, higher co-efficient of friction was recorded.

CPLD BASED STEPPER MOTOR CONTROL APPLICATION

 

Authors: Vandana Shah, Bhavina Patel, Ravindra Kshirsagar

 

JERS/ Vol II/ Issue IV/October-December, 2011/183-185

 

ABSTRACT
The use of microcontroller and CPLD is getting more and more wide spread in electronic designs. For most practical purposes, CPLDs can be thought of as multiple PLDs (plus some programmable interconnect) in a single chip. Complex Programmable Logic Devices (CPLDs) are exactly what they claim to be. Essentially they are designed to appear just like a large number of PALs in a single chip, connected to each other through a cross point switch They use the same development tools and programmers, and are based on the same technologies, but they can handle much more complex logic and more of it. Ideally, though, the hardware designer wanted something that gave him or her flexibility and complexity of an ASIC but with the shorter turn-around time of a programmable device. The solution came in the form of two new devices - the Complex Programmable Logic Device (CPLD) and the Field Programmable Gate Array. As can be seen in Figure 1, CPLDs and FPGAs bridge the gap between PALs and Gate Arrays. CPLDs are as fast as PALs but more complexes. FPGAs approach the complexity of Gate Arrays but are still programmable

VLAN IMPLEMENTATION USING IP OVER ATM

 

Authors: Pankaj D. Khambre, Amit Kumar and M.D. Gayakwad

 

JERS/ Vol II/ Issue IV/October-December, 2011/186-192

 

ABSTRACT
The purpose of this document is to provide a better understanding of Virtual Local Area Networks (VLANs) and their use in the Network architecture. In the following sections, we will define a VLAN and VLAN Implementation Using IP over ATM describe its benefits as well as some limitations. We will explain why it is important for a LAN administrator to understand VLANs, and give some basic instructions to determine how many VLANs a department would typically need. Lastly, contact information will be provided for any additional questions you might have.

EMERGING EMERGENCY DUE TO DUST EXPLOSIONS IN PROCESS INDUSTRY

 

Authors: G. Vijayaraghavan

 

JERS/ Vol II/ Issue IV/October-December, 2011/193-198

 

ABSTRACT
The paper describes, with the help of several representative case studies, how ‘dust’ explosions commonly occur in process industry all over the world and the devastation they cause to life and property. Dust explosions also pose serious risk of environmental contamination. The near-total lack of documentation vis a vis dust explosions in India is highlighted. The paper also describes the materials involved, the initiating factors, and the fatalities typically associated with dust explosions. It makes out a case for generating awareness towards the dust explosion hazard in India.

MANDAL LEVEL INFORMATION SYSTEM USING ARCGIS – A CASE STUDY OF ADDANKI MANDAL, PRAKASAM DISTRICT, ANDHRA PRADESH, INDIA

 

Authors: V. Hema Sailaja , K. Santosh Kumar , M. Anji Reddy

 

JERS/ Vol II/ Issue IV/October-December, 2011/199-203

 

ABSTRACT
The effective information system is necessary to make available all kinds of data related to the Mandal, easily and concisely for planning at regional level. It helps in regular updation of database over the years to ensure better availability of Mandal information. The main objective of the study is to develop a Mandal information system providing complete information for decision-making based on their existing resources and capabilities. Hence, an attempt has been made to assess the standard of each infrastructure facility in Addanki mandal, Prakasham district. For this purpose, type of housing, roads, water supply and sanitation, electricity, telephone, transportation facilities have been identified as the major fields of the basic infrastructure. Detailed information about the infrastructure in Addanki mandal has been used for the development of the information system in ARCGIS environment. High-resolution satellite data from IRS-P6, LISS-IV –MX Resolution of 5.8m satellite has been used for the preparation of large scale base, drainage, transportation and land use/land Cover maps (1:10,000 Scale) supported with extensive field survey

DISPUTE REVIEW BOARD IN CONSTRUCTION INDUSTRY, A NECESSITY

 

Authors:Mrs. Shruti L. Gore and Mrs. Pramila .R. Adavi

 

JERS/ Vol II/ Issue IV/October-December, 2011/204-207

 

ABSTRACT
A DRB is a three-member panel jointly chosen by the contractor and owner that is present throughout the course of the contract, and whose responsibility is, to hear disputes contemporaneously with their occurrence. This paper reviews the necessity of the DRB on the various projects. It also reviews the efficacy of the projects, concluding that whether or not, there was any discernable bid savings between DRB and non-DRB contracts; the DRB was successful in resolving all disputes prior to contract completion; were there any barriers to the DRB’s effectiveness, concerning bid savings; and the DRB reduced the costs of resolving disputes.

STUDY OF TRANSMISSION CHARACTERISTICS OF 2X2 MIMO SYSTEM FOR DIFFERENT MODULATION TECHNIQUES USING ALAMOUTI STBC CODING AND ZF, MMSE EQUALIZER RECEIVERS

 

Authors: R Bhagya, Dr. A G Ananth

 

JERS/ Vol II/ Issue IV/October-December, 2011/208-212

 

ABSTRACT
A detailed analysis of the performance of 22 Multiple Input Multiple Output (MIMO) antenna systems has been carried out by determining the transmit diversity using Alamouti Space Time Block Coding (STBC) techniques. The transmission characteristics are determined for BPSK, QPSK and 16-QAM modulation. Additive White Gaussian Noise (AWGN) has been used presuming flat fading Rayleigh channel. On the receiver side, linear equalization techniques such as Zero Forcing (ZF) and Minimum Mean Square Error (MMSE) were employed for computing BER. It is found that to achieve BER values of 10-4, for BPSK modulation the required SNR ~11dB, for QPSK modulation the SNR ~15dB and for 16-QAM modulation the SNR ~27dB for STBC transmission. The results indicate that the STBC multiplexing schemes show an overall improvement of ~12dB between 16-QAM and QPSK modulation. and 16dB improvement between 16-QAM modulation and BPSK modulation for the same BER values of 10-4. The STBC multiplexing for digital transmission shows significant improvement in BER performance with higher levels of digital modulation. The results derived from MATLAB simulations are presented and discussed in the paper.

SELF COMPACTING CONCRETE: A CONCRETE OF NEXT DECADE

 

Authors: N R Gaywala D B Raijiwala

 

JERS/ Vol II/ Issue IV/October-December, 2011/213-218

 

ABSTRACT
Self-compacting concrete (SCC) is an innovative concrete that does not require vibration for placing and compaction. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. The hardened concrete is dense, homogeneous and has the same engineering properties and durability as traditional vibrated concrete. Complex shape of concrete structures and densely arranged bars make it more difficult to use a vibrator. Vibratory compaction is noisy and deleterious to the health of construction workers, as well as an annoyance to people in the neighborhood. In remote areas it is difficult to find skilled workers to carry out the compacting work at construction sites. This paper presents the progress of the research on different harden properties of Self Compacting Concrete using the Ordinary Portland Cement “Ultratek” made and low-calcium fly ash from Birala Glass, Kosamba, Gujarat, as binder materials in making the concrete mixes along with other ingredients locally available in Gujarat. the hardened properties like compressive strength, split tensile strength, flexural strength and impact strength are found in experimental work and are compared with M25 grade of concrete. In the present context the Self Compacting Concrete can be proved as boon to construction industry.

REVIEW OF PUBLIC KEY CRYPTOGRAPHY ON Wimax USING Rsa ALGORITHM

 

Authors: Monika Rani, Anil Rose and Mridul Chawla

 

JERS/ Volume II/ Issue IV/Oct-Dec, 2011/219-222

 

ABSTRACT
New technologies are evolving each day to facilitate human beings. From analog communication to 2G, 2G TO 3G and now we are heading towards Wimax (Worldwide Interoperability for Microwave Access), a telecommunications protocol that provides fixed and fully mobile internet access. The name "Wimax" was created by the Wimax Forum, which was formed in June 2001 to promote conformity and interoperability of the standard. Due to increased number of eavesdroppers in Wimax technology, the concern is now focused towards Wimax security. Though incorporating some security methods, IEEE 802.16e is still vulnerable to malicious attacks. In this paper, we point out several potential security threats and vulnerabilities. We propose some possible security improvements and solutions to eliminate the vulnerabilities using public key cryptography [1] in RSA.

SPINTRONICS

 

Authors: Prof.M.V.Patel,Dr.M.N.Parmar Prof.J.M.Chaudhari Prof.C.D.Patel

 

JERS/ Volume II/ Issue IV/Oct-Dec, 2011/223-227

 

ABork in state with case study of 2010 disaster.

OPTIMIZATION OF CONTROL PARAMETERS FOR SURFACE ROUGHNESS IN SIDE FLUSHING FORM OF DIE SINK EDM

 

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

 

JERS/ Volume II/ Issue IV/Oct-Dec, 2011/228-233

 

ABSTRACT
Electrical discharge machining (EDM) is extensively used in machining of conductive materials when precision is of prime importance. EDM researchers and scientists have explored a number of ways to improve the efficiency including some unique experimental concepts. The operating performance measures of side flushing type of electrical discharge machining process on EN-31 die steel using copper electrode are being optimized according to one of its effective machining parameter i.e. Surface roughness (SR). An L27 orthogonal array of Taguchi methodology has been used to recognize the effect of process input factors (viz. voltage, current, spark gap, pulse on time, duty cycle and flushing pressure) on surface roughness. Hence, the quality characteristic for SR is set to lower-the-better to attain the optimum dimensional precision. Using Taguchi’s parameter design, significant machining parameters affecting the performance measures are identified as discharge current, pulse duration, pulse frequency and dielectric flow. The results are further verified by conducting confirmation experiments.

DIFFERENTIAL FORMS AND NEWMEN-PENROSE FORMALISM

 

Authors: S. J. Patel

 

JERS/ Volume II/ Issue IV/Oct-Dec, 2011/234-241

 

A

MASS CUSTOMISATION

 

Authors: Atmaram P.

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/242-246

 

ABSTRACT
Consumers are increasingly demanding customized goods and services in order to meet their individual needs. Companies are responding to this development by offering mass customized products, as the needs of modern customers are often not met by mass produced goods. Mass customization aims to combine the provision of customized products and services on a mass scale with operational performance similar to mass production systems. This implies rapid response to customer requests while maintaining high levels of efficiency and productivity. This work will refer to companies applying the mass customization concept which gives us an indication of the relevance of mass customization. This paper represents an exploratory study, conducted to find out the relevance of mass customization by employing case studies.

APPLICATION OF DILUTE PHASE PULL PUSH TYPE PNEUMATIC CONVEYING SYSTEM FOR CONVENING OF POWDERED AND GRANULAR MATERIAL

 

Authors: L.P. Dhole*, Dr. L.B. Bhuyar, Dr. G.K. Awari

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/247-251

 

ABSTRACT
Pneumatic conveying is a material transportation process, in which bulk particulate materials are moved over horizontal and vertical distances within a piping system with the help of a compressed air stream. Pneumatic conveying is a very practical method for in-plant distribution of large amounts of dry powdered, granular, and pelletized materials. Using either positive or negative pressure of air or other gases, the material to be transported is forced through pipes and finally separated from the carrier gas and deposited at the desired destination. The main advantage of pneumatic conveying system is that material is transferred in close loop, thereby preventing the environmental effect on the material and vice versa. No standard procedure is available for the design of pneumatic conveying system. As the configuration of the system changes, variable involved also changes, and one has to change the design considerations based on the applications. So there is wide scope for experimentation and analysis in the field of pneumatic conveying system. In this paper experimental analysis of pull push type of pneumatic system using reciprocating compressor and centrifugal blower is presented.

APPLICATION OF CAD IN RAPID PROTOTYPING TECHNOLOGY

 

Authors: Mr. Sanjay C. Kumawat, Mrs. A. L. Gawali

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/252-257

 

ABSTRACT
Now a day, one of the critical factors in competitive technology is “time to market” along with foolproof design. This critical factor indicates the entire product design cycle from concept to product design to prototype to manufacturing process design to actual implementation. To have command over this critical factor Computer aided designing (CAD) and manufacturing (CAM) is taking hold as a mean of speeding the time to market for new product development. This paper described how CAD approach is used in Rapid Prototyping techniques (RPT) for design and development of new products. Use of this CAD techniques in RPT techniques shorten the time to market and further for research and development of time of new products.

A STUDY OF FLUID FLOW THROUGH A POROUS MEDIUM

 

Authors: Shameena Ahmed

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/258-261

 

ABSTRACT
In this paper, free convection flow of an incompressible, viscous, electrically conducting fluid through a porous medium in a rotating system past an infinite vertical porous plate with time dependent suction and constant heat flux in the presence of transversely applied uniform magnetic field has been studied. Solutions for the velocity field and temperature field have been obtained using perturbation technique. Expressions for the skin friction and the heat transfer have also been derived.

A MULTI-SENSORY APPROACH FOR GEOMETRY CLASSIFICATION AND AUTOMATED HANDLING BASED ON IMAGE SILHOUETTES

 

Authors: R. Senthilnathan, S. Shankar Bharathi, R. Sivaramakrishnan

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/262-267

 

ABSTRACT
The knowledge of the environment in which a robot is performing its assigned tasks is obtained from a class of sensors called external state sensors in which vision is most widely used. Vision assisted robots are employed for a variety of part handling tasks. Pick and place is one of the well-established tasks utilizing vision for part geometry identification. The perception of depth is a major task to be accomplished in any picking application involving inconsistent parts to be handled. Since a single camera gives only 2D information of the 3D world, the third dimension perception is often achieved using multiple cameras, range sensors and other single camera depth perception techniques with the help of special optical arrangements and methods. The paper proposes a low cost time of flight technique assisting the vision data for depth perception and later for the robot to pick the part. The components considered for the experimentation of the idea are cubical and cylindrical, which are totally inconsistent as for as the vision computing is considered, because they are indistinguishable in an image (silhouette). The paper demonstrates the use of an ultrasonic range sensor to estimate the third dimension which is mounted in the vicinity of the robot's end effector. Once the depth is perceived the position and orientation of the end effector to pick the desired component can be estimated. For a given material the weight of the part is computed from which the gripping force is calculated. A strain gauge is used as a force sensor in the closed loop gripping force control system. The multisensory approach for robot motion control and part handling is proved to be effective for the components considered. The paper also demonstrates a number of algorithms for detecting the orientation of the components.

MICROCONTROLLER BASED CONTROL OF THREE PHASE BLDC MOTOR

 

Authors: P. Devendra,Madhavi TVVS*,K Alice Mary,Ch. Saibabu

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/268-271

 

ABSTRACT
This paper introduces a novel method which is intended to assist in the design and control of cost effective, efficient Brushless Direct Current (BLDC) motors with additional features like auto restart and auto power down while maintaining constant speed. Speed Control of BLDC motor using 8051 micro controller requires more hardware, and with the availability of PIC microcontrollers with versatile features motivated to develop a cost effective and reliable control with variable speed range. In the present paper, an algorithm which uses the Hall sensor signals acquired from the motor is developed and the program has been written using MPLABIDE v 7.52. This program generates the firing pulses required to drive the MOSFETs of three phase fully controlled bridge converter driven by IR2101 FET drivers. Later the program has been dumped on the PIC16F series device and tested on the 24V, 80 W, 1500 rpm BLDC motor which can make the motor run at constant speed ranging from 6 to 1500 rpm. The proposed hardware and the program are found to be efficient and the
results are promising.

IMPACT OF ZEOLITES IN PETROLEUM INDUSTRIES

 

Authors: *Ismaeel Ahmed Nagim, K. S. Kulkarni, A. D. Kulkarni

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/272-275

 

ABSTRACT
The general features of zeolites that led to their widespread use in oil refining and petrochemistry are highlighted as well as the details of their impact on selected processes. The analysis of the catalyst market and the position of zeolites there in is a good indication of their strategic importance. Zeolites have brought many disruptive changes to these fields (e.g. FCC). They impacted also these industries in an equally important way, although more subtle, by incremental improvement of processes. The new and vast challenges facing oil refining and petrochemical as well as the managed transition to sustainable environmental benign transport fuel industries and chemical industries will require creative science and technologies. Zeolites offer the basis of many of these technological solutions provided efficient and balanced cooperations between industry and academia are further developed.

Online Off-Campus Counseling Process for Engineering College of Madhya Pradesh

 

Authors: Vijay Bhuria*, R.K Dixit

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/276-280

 

ABSTRACT
Online Off campus counseling was started by government of Madhya Pradesh, Department of technical education in the year of 2009 for admission purpose of various courses. The online counseling process has great advantage to the students as compared to the face to face counseling in terms of saving in time & money. This paper analyzes systematic procedure & provides guideline to the students for admission process & carrier guidance. In our analysis the online counseling process for admission of various courses in engineering college gives more satisfaction & system has good reliability

CRITICAL STUDIES ON THE INFLUENCE OF SILICA FUME AND STEEL FIBERS IN ENHANCING PROPERTIES OF CONCRETE

 

Authors: Er. Prashant Y.Pawade, Dr. P.B. Nagarnaik, Dr. A.M.Pande

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/281-286

 

ABSTRACT
This paper presents results of concrete containing Portland Pozzolona cement (PPC) containing fly ash with silica fume (SF) and steel fibers. The tests are carried out in laboratory on M30 grade of concrete at 28 and 90 days of age. Mathematical models are proposed to define the cube as well as cylinder compressive strength, dynamic modulus of elasticity, ultrasonic pulse velocity, stress-strain behavior and static modulus of elasticity in compression. As far as the compressive strength is concerned, the replacement of cement by 12% of SF improved performance of concrete. The most significant contribution due to the addition of fibers is to enhance the post peak behavior of concrete and it also resists crack propagation after the first crack, and allow concrete to sustain very high strains than concrete without fibres.

A COMPARISON OF HOMOGENEOUS AND DRIFT FLUX MODEL FOR CAPILLARY TUBE

 

Authors: Hirendra Kumar Paliwal, Keshav Kant

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/287-292

 

ABSTRACT
Theoretical work on capillary tube started with homogeneous flow models assuming the effect of slip between the two phases to be negligible as the diameter of such capillary tubes is very small. In the recent years the work on separated flow model considering the slip between the liquid and vapour phases have started picking up. In the present paper an attempt is made to consider the slip between the phases and apply ‘drift flux model’ to simulate the flow of refrigerant through adiabatic capillary tube and compare it with the homogeneous model. The models use well established empirical correlations for friction factor for single phase flow and two phase flow. Comparison of the models with the experimental values available in the literature is made.

PTT BASED CUFF-LESS BLOOD PRESSURE MEASUREMENT

 

Authors: Bijal Vasant, Snehal More, Neha Kulkarni, Revati Shriram, Nivedita Daimiwal

 

JERS/ Volume II/ Issue IV/Oct -Dec, 2011/293-

 

ABSTRACT