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

                                                        -An Open Access Peer Reviewed e-Journal

 
 
 

OPTIMIZATION OF RICE FLOUR (ORYZA SATIVA L) AND LALI (METAPENAEOPSIS STRIDULANS) EXTRUSION BY RESPONSE SURFACE METHODOLOGY

Authors: Mahuya Hom Choudhury*, Runu. Chakrabarty, Utpal Raychaudhuri

IJAET/Vol. II/ Issue I/January-March, 2011/01-11

ABSTRACT
Lali (Metapenaeopsis stridulans) powder and rice flour mixture was used as base material for extrusion process. The process was optimized using response surface methodology (RSM). Response (dependent)variables were: expansion ratio, density, shearing strength and sensory texture acceptability. Independent variables were processing temperature and feed moisture. All other process variables (screw speed, feed speed and die diameter) were kept constant (475 r.p.m, 28 g/min and 3 mm respectively). The most expanded products had the best texture and which were obtained at 150 °C and 15% moisture containing of feed material. This study showed that under condition that induced the maximum expansion produce best texture and highest acceptable snack product based on rice and lali flour.

ANALYSIS OF RECTANGULAR MICROSTRIP ANTENNA SYMMETRICALLY LOADED WITH GUNN DIODES

Authors: Verma Alka* , Shrivastava Neelam, Verma Doshant

IJAET/Vol. II/ Issue I/January-March, 2011/12-24

ABSTRACT
Analysis on rectangular microstrip antenna with symmetrically loaded Gunn diodes using equivalent circuit concept reveals that the bandwidth is increased to 12.49% over the 2.9% of patch alone. It is observed that the rectangular microstrip antenna symmetrically loaded with Gunn diode offers wider tunability (9.254GHz-9.134GHz) for bias voltage from 8-15V for a given threshold voltage of 4.4V. It is also observed that theradiated power is enhanced by 0.13dB as compared to patch alone.

ENERGY-AWARE PACKET SCHEDULING WITH QoS CONTROL IN WIRELESS AD HOC NETWORK

Authors: C. Annadurai

IJAET/Vol. II/ Issue I/January-March, 2011/25-32

ABSTRACT
In this paper, we are going to minimize the average transmission energy expenditure in ad hoc network with overload probability. Ad hoc network has no several infrastructures like wireless sensor network, where adhoc network is the distributed services. The each node in ad hoc network is willing to forward data to other nodes. Wireless networks can have a common base station and nodes. Through that base station only we can send the packets to each node and we can’t able to directly communicate between the nodes. We model a packet scheduling and queuing system for a general input process in linear time- invariant systems. Traffic from a real source having has strong time correlation. We propose energy-efficient and energy aware packet scheduling policy that takes the correlation in to account. A slower transmission rate implies that packets stay in the transmitter for a long time, which may result in unexpected transmitter overload and buffer overflow. We derive an upper bounds of maximum transmission rate under an overload probability and upper bounds of the required buffer size under a packet drop rate. Simulation result will show that the scheduler improves up to 15 percent in energy savings with QoS control.

SIMULATION STUDY OF INTERFERENCE IMPACT BASED ON NUMBER OF CHANNELS ALLOCATED PER SECTOR IN WIMAX NETWORKS

Authors:  Parvesh, Kiran Ahuja

IJAET/Vol. II/ Issue I/January-March, 2011/33-39

ABSTRACT
WiMAX (Worldwide Interoperability for Worldwide Microwave Access) is based on the IEEE 802.16 standard for Metropolitan Area Networks (MAN). There are several ways of quantifying the performance of a broadband system.This paper will address pressing issues of WiMAX system, which is interference. The manuscript focuses on the effect of number of channels per sector. We derive simulation results for the interference taking into account the number of channels per sector. Different channels allocation strategies are analyzed and their performances are compared. Finally, EDX simulations based on the WiMAX 802.16e specifications illustrate the results.

INFLUENCE OF POLARIZER DETUNING ON PERFORMANCE OF OTDM SYSTEMS EMPLOYING SMZ INTERFEROMETER BASED DEMULTIPLEXING

Authors: Jaswinder Singh

IJAET/Vol. II/ Issue I/January-March, 2011/40-42

ABSTRACT
The influence of polarizer de-tuning on the recovery of desired channel from 4-channel optical TDM (OTDM) signal that uses symmetrical Mach-Zehnder Interferometer (SMZ) with two SOAs and a polarizer to demultiplexing, is studied. Since the SOA affects the signal polarization, performance of the optical TDM system is degraded because of the de-tuning of the polarizer caused by the SOA medium nonlinearity.

EFFICIENT WORD SENSE DISAMBIGUATION WITH CONTEXT BASED SEARCHING

Authors: Mr. Vinay Hegde, Mr.Krishnan, Dr.Rangaswamy.T

IJAET/Vol. II/ Issue I/January-March, 2011/43-46

ABSTRACT
This paper highlights the method of context based searching and how it is carried out. The area of context based searching encompasses the broad area of information retrieval and its techniques. Here the emphasis is placed on the context of the search query and search results are gathered.

PERFORMANCE OF OFDM MULTIPLEXING TRANSMISSION USING DIFFERENT DIGITAL MODULATION SCHEMES

Authors:  R Bhagya, Dr. A G Ananth

IJAET/Vol. II/ Issue I/January-March, 2011/47-52

ABSTRACT
A detail analysis of the performance of an orthogonal frequency division multiplexing (OFDM) transmission with different digital modulation techniques such as BPSK, QPSK and QAM has been carried out. BER performance has been determined for Additive white Gaussian Noise (AWGN) channel. The simulation results for the performance of OFDM using different digital modulation schemes BPSK, QPSK and QAM are determined for comparing their performances. It is observed that the OFDM multiplexing shows 4dB improvement in BER performance for QAM modulation compared to that of QPSK modulation. Similarly QPSK modulation techniques exhibits 2dB improvement in the performance compared to BPSK modulation. It is observed that OFDM multiplexing indicates a gradual improvement in BER performance with higher digital modulation techniques. The simulation results are presented and discussed in the paper.

EVALUATION OF TCP VARIANTS – ‘RENO’ AND ‘SACK’ ON ‘REAL TEST BED’ USING EMULATOR – ‘NISTNET’

Authors: R. D. Mehta, Dr. C. H. Vithalani, Dr. N. N. Jani

IJAET/Vol. II/ Issue I/January-March, 2011/53-57

ABSTRACT
In increasing heterogeneous networks, reliability is an important issue. It can be assured by providing end to end data delivery by process to process communication. Transport layer in TCP/IP model takes the responsibility using TCP (Transmission Control Protocol) which provides reliability by means of process to process communication and connection oriented acknowledged service. This paper attempts to study and compare revisions done in TCP over a long period of research. Two most important, fully implemented and currently used TCP variant named RENO and SACK are taken into an account. NISTNet is an emulator tool used for the real time packet capturing on real network and performance comparison. The results of the above emulation process show that SACK is performing better compare to RENO in case of high delay and higher percentage of losses. On low delay links and with very less number of losses RENO and SACK perform in almost similar manner.

USE OF TAGUCHI METHOD FOR FINDING THE SIGNIFICANCE OF ALLOYING ELEMENTS ON CAST IRON- A CASE STUDY

Authors: Dr. P.V.R.Ravindra Reddy, Dr. G.Chandra Mohan Reddy, G.Haragopal, P.Radhakrihsna Prasad

IJAET/Vol. II/ Issue I/January-March, 2011/58-62

ABSTRACT
The experimental designs and subsequent analyses are intrinsically tied to one another. Taguchi method is a scientifically disciplined mechanism for evaluating and implementing improvements in products, processes, materials, equipment, and facilities. Orthogonal arrays are used to design the full factorial and partial factorial experiments to establish the effect of any input parameter on the output parameter chosen with a lesser number of experiments. ANOVA (Analysis of variance) is a statistical analysis tool that can be applied in conjunction with Taguchi method to experimental situations and may be used with any set of data that has some structure. Cast iron can be used to produce varied products ranging from basic components in daily life to complex engine blocks of automobiles. This flexibility is achieved in cast iron by process of alloying, where the properties of cast iron changes tremendously with addition of alloys. As, the effect of alloying elements on cast iron is well established, in this work the suitability of L-4 orthogonal array with two way ANOVA is investigated taking the effect of Silicon and Manganese on a cast iron as a case study.

EFFECT OF AGING ON THE MECHANICAL PROPERTIES OF AL-SI-SIC PARTICULATE COMPOSITE

Authors: Sanjay Soni,*, S.Das, G.Dixit

IJAET/Vol. II/ Issue I/January-March, 2011/63-72

ABSTRACT
The present work deals with Al-Si-SiC particulate composite developed by reinforcing 10 wt% SiC particles in the Al matrix. The effect of heat treatment has been studied on the mechanical properties of the composites. The mechanical properties such as tensile strength, 0.2% proof stress, hardness and impact strength of the composites in as cast and heat treated condition were studied in order to achieve the maximum properties. Microstructural examination of the composite in as cast and heat treated condition was carried out paying special emphasis to the distribution of SiC particle in Al matrix and interface bonding between SiC and Al matrix. Fracture surface study was also done to see the type of fracture occurring in the tensile test. It is observed that there is a substantial improvement in the mechanical properties of the composite due to heat treatment as compared to the as cast composite. The microstructural study of the cast composite shows aluminum dendrites with dendretic arm spacing in the range of 25 microns. The eutectic silicon solidifies in the inter-dendretic region and around the dendrites. On heat treatment the plate shaped eutectic silicon is fragmentated into spherical shape and there is a good interface bonding between the SiC particle and Al matrix. The tensile fracture study shows inter-granular fracture and SiC particle embedded on the surface. By careful observation of fracture surface it is depicted that particle decohesion and fracture both are occurring simultaneously in tensile fracture. In some instances the segregation of particle in aluminum matrix is also observed.

TECHNIQUES AND THEORIES OF SELF-OPTIMIZATION IN AUTONOMIC SYSTEMS

Authors: Shanta Rangaswamy, Dr. Shobha G

IJAET/Vol. II/ Issue I/January-March, 2011/73-80

ABSTRACT
Information infrastructure is witnessing an evolution with the advent of autonomic computing paradigm. Autonomic Computing Systems (ACS) is becoming more real and visible in present-day computing world, thus creating a context-aware ubiquitous computing environment. Established IT industry leaders have accepted this approach and a great deal of research and development is happening upon this area. Today, systems have grown large accommodating interconnecting complex technologies and practices. This has given rise to the demand of enormous human-skills in low-level-guidance area, engaged in IT support and system maintenance related tasks. Autonomic Systems have the capability of configuring, healing, optimizing and protecting themselves. These Self-managed systems have started becoming part of large enterprises, exhibiting autonomic behavior and tendency for self adaptability. Such systems could be part of a heterogonous – enterprise environment and capable of serving at any level ranging from a simple autonomic component to an enterprise-wide application. Autonomic systems, with the support of more open industry standards can change the way systems behave and respond today. .

EXPERIMENTAL STUDY OF VARIOUS TECHNOLOGIES FOR CUTTING POLYMER MATRIX COMPOSITES

Authors: A.A.Shaikh, P. S. Jain

IJAET/Vol. II/ Issue I/January-March, 2011/81-88

ABSTRACT
The application of polymer matrix composites has increased considerably over the last few years. Composite materials making inroads into general engineering markets besides high end applications like aerospace, automotive etc.   In order to build assemblies, cutting/machining is essential. The machining of polymer matrix composite is an interesting area because of variety of reinforcement from high strength fiber to natural fibers.  This paper deals with comparative study of various processes for cutting cotton fiber polyester composite by maintaining unidirectional reinforcement. The cutting processes employed are CO2 laser, water jet and diamond saw cutting.  Cut quality is evaluated through scanning electron microscopy which shows that cutting technologies has considerable influence on mechanical properties of polymer matrix composites.

 

 

STEEL FIBRE BASED CONCRETE IN COMPRESSION

Authors:M.A. Tantary, A.Upadhyay, J.Prasad

IJAET/Vol. II/ Issue I/January-March, 2011/96-111

ABSTRACT
Of all the strengths, compressive strength is the most important property in concrete because of the qualitative relation of compressive strength with other types of strengths. Moreover, it is easy to determine and has got intrinsic importance in construction. But the fact can not be denied that as yet no exact quantitative relationship between compressive strength of cube and cylinder has been established nor is it likely to be. This is because of the variability in the constituents of concrete from place to place and even from batch to batch in a given concrete mix. Approximate or stastical relationships, in many cases, have been established and certainly provide very useful information. This approximation gets magnified, when fibres are used in concrete and hence demands a comprehensive know-how of compression behavior of the concrete being used in any construction project or research program. In this study, complete compression behavior of fibre based concrete, including strength, toughness and failure modes, have been thoroughly studied to provide an adequate know-how about the behavior of the material. Though the increase in compressive strength of concrete was found marginal, yet the increase in toughness was found significantly large, resulting in the failure of concrete in ductile mode, which otherwise is brittle in nature.

REMOVAL OF SPECKLE NOISE FROM EYE IMAGES THROUGH BACTERIAL FORAGING OPTIMIZATION

Authors: Mathur U*, Gill Sandeep S., Dr. Rattan Munish

IJAET/Vol. II/ Issue I/January-March, 2011/112-119

ABSTRACT

Eye images are often deteriorated by noise due to various sources of interferences. Low quality eye images are acquired due to noise such as Speckle Noise which is introduced during nonuniform illumination caused by the position of the light source, lack of focus and motion blur. Speckle noise occurrence is often undesirable, since it affects the tasks of human interpretation and diagnosis. Removal of speckle noise from eye images is a critical issue in the field of eye recognition and diagnosis.  Several speckle reduction techniques are available for application to eye images in order to reduce the noise level and improve the visual quality for better recognition and medical diagnosis. Homomorphic Wiener filtering is the best choice for removal of speckle noise. In this paper, a soft computing technique Bacterial Foraging Optimization (BFO) is applied on filtered eye images to enhance the quality of eye images. The BFO technique minimizes mean square errors between filter output image and original image, The Peak Signal to Noise Ratio (PSNR) of the restored image using the proposed technique is much higher than that of the filtered images obtained by the existing Homomorphic Wiener filtering techniques.

MODAL COUPLING EFFECT FROM MODAL ALIGNMENT PERSPECTIVE FOR LIGHT COMMERCIAL VEHICLE

Authors: Chavan U. S.*, Sandanshiv S. R., Joshi S.V.

IJAET/Vol. II/ Issue I/January-March, 2011/120-130

ABSTRACT
This paper presents the effect of each sub-system on overall vehicle from modal alignment perspective. In this work light commercial vehicle is considered for a case study. Modal analysis of all the aggregates like chassis frame, load body, cab, front and rear axle, propeller shaft and exhaust system are carried out on basis of rigid body and flexible body model. Finally, Modal alignment charts are prepared which shows the resonant points and coupling present in vehicle aggregates. These charts are very useful tool in dynamic analysis of whole vehicle. Results are validated in both rigid and flexible body models.

COMPARATIVE STUDY OF Ba-M HEXAFERRITE PARTICLES PREPARED USING MICROEMULSION PROCESSING AND CO-PRECIPITATION TECHNIQUES

Authors: Virk H. S.*, Poonam Sharma and Rajshree Jotania

IJAET/Vol. II/ Issue I/January-March, 2011/131-143

ABSTRACT
BaFe12O19 hexaferrite precursors containing cetyltrimethyl ammonium bromide (CTAB) were synthesized using two different routes, namely, microemulsion processing and chemical co-precipitation techniques. The prepared barium hexaferrite precursors were calcinated at 950°C for 4 hours in a furnace, then slowly cooled to room temperature. The effect of synthesis techniques on structural and magnetic properties of BaFe12O19 hexaferrites has been studied. Decomposition behaviour is investigated by means of thermal analysis (TGA). Fourier Transform Infrared (FTIR) and X-ray diffraction (XRD) techniques have been used for characterization of barium hexaferrite particles. The X-ray diffractogram of the sample prepared by using a co-precipitation technique and microemulsion process show only single M-phase. Surface morphology of nonporous particles was examined using SEM and TEM. Magnetic measurements were carried out at room temperature using a Vibration Sample Magnetometer (VSM). The maximum coercivity and saturation magnetisation of prepared BaFe12O19 hexaferrite samples were determined by a VSM. The value of saturation magnetisation depends on the type of synthesis technique used. The sample prepared by a microemulsion route shows high saturation magnetisation    (~71emu/g), where as the sample prepared by a co-precipitation route exhibits low saturation magnetisation (~65emu/g). Magnetic study reveals that prepared BaFe12O19 hexaferrite particles using both techniques possess single magnetic domain.

ANALYTICAL STUDY OF HELICALLY CLADDED OPTICAL WAVEGUIDE WITH DIFFERENT PITCH ANGLES

Authors: Mishra V.* Gautam A. K.,Taunk B. R.

IJAET/Vol. II/ Issue I/January-March, 2011/143-153

ABSTRACT
This article includes dispersion characteristics of optical waveguide with helical winding, and compression of dispersion characteristics of optical waveguide with helical winding at core-cladding interface for five different pitch angles. In this article dispersion characteristic of conventional optical waveguide with helical winding at core–cladding interface has been obtained. The model dispersion characteristics of optical waveguide with helical winding at core-cladding interface have been obtained for five different pitch angles. Boundary conditions have been used to obtain the dispersion characteristics and these conditions have been utilized to get the model Eigen values equation. From these Eigen value equations dispersion curve are obtained and plotted for modified optical waveguide for particular values of the pitch angle of the winding and the effect of this winding has been discussed. The article also shows the effect in the Dispersion Curve with changing the Pitch Angle.

A 16-BIT RISC MICROPROCESSOR USING DCPAL CIRCUITS

Authors: V. B. Saambhavi* and V. S. Kanchana Bhaaskaran

IJAET/Vol. II/ Issue I/January-March, 2011/154-162

ABSTRACT
This paper presents the design of a 16-bit RISC processor core. The quasi-adiabatic DCPAL circuit design style is employed in the designs. The major blocks constituting the processor core are the Arithmetic and Logical Unit (ALU), Program Counter, Adiabatic Register file and Control Unit housing the instruction decoders. The schematic designs are drawn using the schematic edit tool and the extracted netlists are used in the simulations. The design is validated by developing and testing the equivalent CMOS circuit counterparts for the processor core design. 250nm Technology model library from TSMC are used in the designs. Use of the identical design environment for the adiabatic and CMOS logic circuits ensures justifiable comparison among the circuits. The schematic design and HSPICE simulations are realized using the industry standard tool flow. Adiabatic gain values of up to 10 are realized in the circuits.

A COMPLEX CASE IN THREE SPECIES AMMENSAL ECOSYSTEM

Authors:  K.V.L.N.Acharyulu* & N.Ch. Pattabhi Ramacharyulu

IJAET/Vol. II/ Issue I/January-March, 2011/163-168

ABSTRACT
The paper intends to discuss a complex case in three species Ammensal ecosystem consisting of a prey (S1), a predator (S2) and an enemy (S3) Ammensal to the prey in which the mortality rate is described for predator. The mathematical model consists a set of three first order non-linear simultaneous equations and the equation for the enemy is non-linear but de-coupled with the prey-predator pair. All the six equilibrium points of the model are derived. More over the criteria for the stability of co-existent state in complex case is examined.

TOLERANCE STACK UP ANALYSIS AND SIMULATION USING VISUALIZATION VSA

Authors:  Prof. Suyash Y. Pawar *, Prof. Harshal A.Chavan, Prof.Santosh P. Chavan

IJAET/Vol. II/ Issue I/January-March, 2011/169-175

ABSTRACT
Tolerance analysis is used to predict the effects of manufacturing variation on finished products. Either design tolerances or manufacturing process data may be used to define the variation. Tolerances stack up in machining results from using operational datum that are different from design datum. It is inevitable due to economic considerations of the machining process. Conventional methods used for tolerance stack up analysis include worst-case and statistical analysis. These methods are based on strong assumptions and have certain drawbacks.
VIS-VSA is a powerful dimensional analysis tool used to simulate manufacturing and assembly processes and predict the amounts and causes of variation VIS-VSA can help reduce the negative impact of variation on product dimensional quality, cost and time to market.

A MIGRATED AMMENSAL AND AN IMMIGRATED ENEMY ECOLOGICAL MODEL WITH LIMITED RESOURCES

Authors:  K.V.L.N.Acharyulu* & N.Ch. Pattabhi Ramacharyulu

IJAET/Vol. II/ Issue I/January-March, 2011/176-184

ABSTRACT
The main aim of this paper is to investigate a mathematical model of  Immigrated Enemy and Migrated Ammensalism where the enemy species is immigrated at a constant rate and the Ammensal species is migrated at a constant rate in which both the species are with limited resources. One and only one equilibrium point of the model is identified and its stability criteria are elicited. Solutions for the linearised perturbed equations are derived and the results are explained.

PRODUCTION OF HYDROGEN AS A FUEL

Authors:  Venkata Ramesh Mamilla, M.V. Mallikarjun, C.V.Subba Rao, Dr.G.Lakshmi Narayana Rao

IJAET/Vol. II/ Issue I/January-March, 2011/185-189

ABSTRACT
Information infrastructure is witnessing an evolution with the advent of autonomic computing paradigm. Autonomic Computing Systems (ACS) is becoming more real and visible in present-day computing world, thus creating a context-aware ubiquitous computing environment. Established IT industry leaders have accepted this approach and a great deal of research and development is happening upon this area. Today, systems have grown large accommodating interconnecting complex technologies and practices. This has given rise to the demand of enormous human-skills in low-level-guidance area, engaged in IT support and system maintenance related tasks. Autonomic Systems have the capability of configuring, healing, optimizing and protecting themselves. These Self-managed systems have started becoming part of large enterprises, exhibiting autonomic behavior and tendency for self adaptability. Such systems could be part of a heterogonous – enterprise environment and capable of serving at any level ranging from a simple autonomic component to an enterprise-wide application. Autonomic systems, with the support of more open industry standards can change the way systems behave and respond today

INVESTIGATION ON BEHAVIOUR OF HIGH PERFORMANCE REINFORCED CONCRETE COLUMNS WITH METAKAOLIN AND FLY ASH AS ADMIXTURE

Authors: P.Muthupriya*, Dr.K.Subramanian, Dr.B.G.Vishnuram

IJAET/Vol. II/ Issue I/January-March, 2011/190-203

ABSTRACT
An experimental investigation was carried out to study the behaviour of High Performance Reinforced Concrete column (HPRC) to assess the suitability of HPRC columns for the structural applications. High Performance Concrete used (HPC) in this study was produced by partial replacement of Ordinary Portland Cement (OPC) with metakaolin and Fly ash. As many as six mixes of HPC were considered with three mixes viz. M2,M3 M4 for the replacement of cement with metakaolin by mass equal to 5%,7.5% and 10%. Whereas for other three mixes such as M5,M6,M7 the replacement for OPC was done by metakaolin and flyash keeping a constant value of 10% fly ash in addition to 5%,7.5% and 10% of metakaolin respectively. Besides the concrete mix M1 made of normal concrete was also adopted for comparison purpose. Seven each for long and short columns were cast and tested in the structural engineering laboratory in the loading frame of 1000kN capacity. The size of short columns was 100x100x1000mm and for these long columns the size adopted was 100x100x1500mm. Short columns were tested under concentric axial load and the long columns were tested under compression and uniaxial bending with minimum eccentricity. The failure of short columns were prematured and showed high brittleness whereas in the case of long columns there were good buckling effect but the failure concentrated either at column head portion or at the base due to spalling of concrete accompanied with heavy cracks. The performance of short columns was studied by evaluation of ductility index and stiffness whereas for long columns ductility was obtained from load versus deflection curves and moment curvature curves. It was observed that the behaviour of HPRC columns was marginally better than those of normal concrete. Of course, from the literature survey it was learnt that high performance reinforced concrete columns require closer spacing of lateral ties or else confinement externally for enhanced performance. Besides the companion specimens such as cubes, cylinders and prism beams were also cast and tested to study the strength characteristics such as compressive strength, split tensile strength and flexural strength of HPC mixes adopted in this study. There is a good increase for all the above mentioned strength for HPC mixes adopted in this study.

GLOBAL STABILITY ANALYSIS ON ECOLOGICAL IMMIGRATED AMMENSALISM

Authors: K. V. L. N. Acharyulu

IJAET/Vol. II/ Issue I/January-March, 2011/203-208

ABSTRACT
The present paper enlightens the global stability of a two species ecological immigrated Ammensalism in which both the species have limited resources. It is constituted by Liapunov’s stability criteria. It is elicited by constructing a proper Liapunov’s function for evaluating the global stability of the model at co-existence state.

PERFORMANCE AND EMISSION CHARACTERISTICS OF 4 STROKE PETROL ENGINE FUELED WITH BIOGAS / L.P.G BLENDS

Authors: Venkata Ramesh Mamilla, V.Gopinath, C.V.Subba Rao, Dr.G.Lakshmi Narayana Rao

IJAET/Vol. II/ Issue I/January-March, 2011/209-213

ABSTRACT
This paper deals with the study and performance of 4-stroke petrol engine fueled with Bio gas /L.P.G blends. The various blends of L.P.G and Biogas are used and conducted the tests on 4-stroke, single cylinder, air cooled SI engine. The experimental results were analyzed for the selection of better blend of L.P.G and Biogas suitable for SI engine for better performance with reduced pollution.

ADAPTIVE WEIGHTED MULTIUSER INTERFERENCE CANCELLATION IN OFDMA SYSTEMS

Authors: A. Rajeswari

IJAET/Vol. II/ Issue I/January-March, 2011/214-220

ABSTRACT
Information infrastructure is witnessing an evolution with the advent of autonomic computing paradigm. Autonomic Computing Systems (ACS) is becoming more real and visible in present-day computing world, thus creating a context-aware ubiquitous computing environment. Established IT industry leaders have accepted this approach and a great deal of research and development is happening upon this area. Today, systems have grown large accommodating interconnecting complex technologies and practices. This has given rise to the demand of enormous human-skills in low-level-guidance area, engaged in IT support and system maintenance related tasks. Autonomic Systems have the capability of configuring, healing, optimizing and protecting themselves. These Self-managed systems have started becoming part of large enterprises, exhibiting autonomic behavior and tendency for self adaptability. Such systems could be part of a heterogonous – enterprise environment and capable of serving at any level ranging from a simple autonomic component to an enterprise-wide application. Autonomic systems, with the support of more open industry standards can change the way systems behave and respond today.

A NUMERICAL SOLUTION OF NONLINEAR EQUATION REPRESENTING ONE DIMENSIONAL INSTABILITY PHENOMENA IN POROUS MEDIA BY FINITE ELEMENT TECHNIQUE

Authors:V.H.Pradhan*, M.N.Mehta, Twinkle Patel

IJAET/Vol. II/ Issue I/January-March, 2011/221-227

ABSTRACT
In the present paper, we have obtained a numerical solution of one – dimensional nonlinear equation arising in oil-water displacement process (instability) in a homogeneous porous medium. The Galerkin Finite Element Method was applied to solve the equation and the numerical results have been obtained and compared with the numerical values of the exact solutions. It was seen that they were significant with each other.

EVALUATION OF LOGISTIC REGRESSION MODEL WITH FEATURE SELECTION METHODS ON MEDICAL DATASET

Authors: Raghavendra B.K., Dr. Jay B. Simha

IJAET/Vol. II/ Issue I/January-March, 2011/228-233

ABSTRACT
Logistic regression is a well known classification method in the field of statistical learning. It allows probabilistic classification and shows promising results on several benchmark problems. Logistic regression enables us to investigate the relationship between a categorical outcome and a set of explanatory variables. The outcome or response can be either dichotomous (yes, no) or ordinal (low, medium, high). During dichotomous response, we are performing standard logistic regression and for ordinal response, we are fitting a proportional odds model. In this research work an attempt has been made to introduce model that uses standard logistic regression formula with feature selection using forward selection and backward elimination methods and has been evaluated for the effectiveness of the results on publicly available medical datasets. The process of evaluation is as follows. The feature selection algorithm using forward selection and backward elimination method is applied on the dataset and the selected features from these algorithms are used to develop a predictive model for classification using logistic regression. The classification accuracy, root mean square error, and mean absolute error are used to measure the performance of the predictive model. From the experimental results it is observed that logistic regression model with feature selection using forward selection and backward elimination methods gives more reliable result than the logistic regression model.

CFD BASED INVESTIGATION ON EFFECT OF ROUGHNESS ELEMENT PITCH ON PERFORMANCE OF ARTIFICIALLY ROUGHENED DUCT USED IN SOLAR AIR HEATERS

Authors: Sanjay Sharma*, Ranjit Singh and Brij Bhushan

IJAET/Vol. II/ Issue I/January-March, 2011/234-241

ABSTRACT
CFD based performance analysis of solar air heater duct provided with artificial roughness in the form of square type protrusion shape geometry has been reported in the present paper. Effect of square type protrusions on heat transfer and friction has been investigated for Reynolds number range of 4000-20000 and relative roughness pitch of 38.8-61.1 at fixed relative roughness height of 0.016. Nusselt number and friction friction factor correlations have been developed by utilizing the data generated under present CFD based investigation.

OPTIMIZING DUTY CYCLE OF RZ TRANSMISSION FOR OPTICAL TDM COMMUNICATIONS

Authors: Jaswinder Singh

IJAET/Vol. II/ Issue I/January-March, 2011/242-245

ABSTRACT
The return-to-zero format is more resilient towards the optical fiber non-linearities compared to the non-return-to-zero format. The duty cycle in the return-to-zero format is an important parameter in determining the performance of optical TDM systems. In this paper, the dependence of system performance on duty cycle RZ format is studied so that optimized optical TDM systems can be designed.

OPTICAL CODE DIVISION MULTIPLE ACCESS SYSTEMS

Authors: Jaswinder Singh

IJAET/Vol. II/ Issue I/January-March, 2011/246-250

ABSTRACT
The optical code division multiple access (optical CDMA) systems is a versatile multiple access technique as compared to time division multiple access (TDMA) and wavelength division multiple access (WDMA). In optical CDMA, the users are assigned unique codes whereas the WDMA and TDMA systems users are assigned different wavelengths or time slots so as to distinguish the data recovered at the receiver end. The user codes in optical CDMA are unique in order to reduce the multiple access interference that appears in the user receiver due to many users those may simultaneously access the network. Hence the MAI depends on the code properties. In this paper, the optical CDMA technology is reviewed and some important codes and the results are discussed using these codes.

RESPIRABLE SUSPENDED PARTICULATE MATTER (RSPM) AND RESPIRATORY SYMPTOM AMONG CASTING INDUSTRY WORKERS: AN EXPLORATORY STUDY IN NORTHERN INDIA

Authors: Lakhwinder Pal Singh, Arvind Bhardwaj, KK Deepak

IJAET/Vol. II/ Issue I/January-March, 2011/251-259

ABSTRACT
With the global liberalization industries in India are growing at a very fast pace, especially the small and medium enterprises (SMEs) like; foundries, mining industries, food processing industries etc. But due to lack of use of advanced technologies by SMEs, the labourers are exposed to dusty and hazardous environment and they are getting more prone to lungs related diseases. This problem is more acute in SMEs especially casting industries where either the attention to labour’ safety is much down the priority list or the labour involved is uneducated and are unaware of the health hazards the respirable dust and the importance of the safety equipment in the job. The present study is focused on assessment of respirable suspended particulate matter (RSPM) exposure among workers of small scale casting Industry of Northern India. Qualitative data was collected through a comprehensive questionnaire in various sections like; machining section, grinding section, moulding section. 224 workers were interviewed personally. SKC Leland Legacy pump was used for dust sampling on 2.0 μm pore size PTFE (Teflon®) filter at flow rate of 9.0 liters/min. The grinding section was found with highest dust concentration among all the sections. The study concluded that most of the workers working in SMEs are not wearing proper protective equipment. This is due to two reasons; un- awareness among workers and due to negligence of the management as well as workers. This leads to the respiratory symptoms among the workers. It is therefore recommended that they must be educated regarding health and safety measures at work place.

ROLE OF LOGISTICS AND TRANSPORTATION IN GREEN SUPPLY CHAIN MANAGEMENT: AN EXPLORATORY STUDY OF COURIER SERVICE INDUSTRY IN INDIA

Authors: Lakhwinder Pal Singh, Sarbjit Singh, Arvind Bhardwaj

IJAET/Vol. II/ Issue I/January-March, 2011/260-269

ABSTRACT
The present study is focused on assessing the role of logistics and transportation in green supply chain management (GSCM). To better understand important SCM issues in this key sector of the retail industry economy, the study was conducted through survey (interviews) with several retail supply chain executives in 10 major retailers in Northern India. A comprehensive questionnaire was formulated which covered various parameters like; Means of transportation for material used by retailers, awareness level of executives about Eco friendly Supply Chain, E shopping Facilities in Retail shops, Carbon Emissions of Retailers: (kg of CO2 per year), Average number of customers visiting the store daily, Means of transportation used by customers, Carbon Emissions of customers (kg of CO2 per year). This study identified and revealed the critical strategies, operational issues, and trends in GSCM. The results revealed that technological integration with primary suppliers and with major customers were positively linked to environmental monitoring and environmental collaboration. However, logistical integration only has an impact on GSCM with primary suppliers but not with the major customers. Finally, as the supply base shrinks the degree of environmental collaboration with the primary supplier’s increases. The study concluded that the predominance of the service sector will increase in the twenty-first-century information age. If no attention is given to the environmental consequences and to ways of addressing environmental challenges in that sector, the beautiful promises of a better lifestyle associated with the information age will be tarnished by the poor quality of our essential commodities – clean air, clear water, and pristine soils.

DYNAMICALLY CO-SYNTHESIS OF H/W & S/W AND OPTIMIZATION IN RECONFIGURABLE EMBEDDED SYSTEM

Authors: Sunil Kr. Singh, R. K. Singh, M. P. S. Bhatia

IJAET/Vol. II/ Issue I/January-March, 2011/270-276

ABSTRACT
Field Programming Gate Array (FPGA) play an important role in reconfigurable computing. Reconfigurable computing has been used to build reconfigurable embedded system. Reconfigurable embedded System is dynamically changing in the hardware circuit at runtime with the reconfigurable characteristic of Programmable Logic Devices like FPGA, to give the system advantages in both hardware and software. A general embedded system has high performance with minimum flexibility but due to fast development of technology, embedded system need more performance with more flexibility. Reconfigurable computing devices like FPGA promise to meet both the needs i.e. flexibility and performance. Reconfigurable hardware can provide a flexible and efficient platform for fulfilling the device area, cost, performance, and power requirements of many embedded systems. In this paper, we try to presents an overview of reconfigurable computing in embedded systems in terms of runtime hardware & software optimization, co- synthesis process and its benefits. We also try to solve some of design issue, tool and method for designing of Reconfigurable Embedded System.

DESIGN AND ANALYSIS OF HYBRID GO-KART

Authors: Prof. Alpesh V. Mehta*, Mr.Nikunj Padhiar, Mr.Jaydip Mendapara

IJAET/Vol. II/ Issue I/January-March, 2011/277-287

ABSTRACT
Since last 2-3 decades the average temperature of earth increased by 3-40C because of the green house effect. Due to increase in the fuel prices and continuously depletion of natural recourses for the fuels causes fuel crises in the modern society. Due to which demand of development of newly energy efficient vehicles increases. The hybrid technology fulfils this requirement by incorporating various combinations of bio-fuels and also by combinations of highly efficient electric drive systems. Along with the same it reduces the emission and cut the fuel cost.
This project illustrates an implementation of hybrid technology on a small scale. Project aims at improving the mileage of the car using simple mild parallel hybrid technology with combination of electric motor drive and the petrol engine drive. We have used the straight open kart chassis design. The results show that alone a petrol engine gives best 25Km/lit, alone a electric motor gives 12kms on full battery charge. The combination of above two gives 40Kms.

PERFORMANCE EVALUATION OF LOGISTIC REGRESSION AND NEURAL NETWORK MODEL WITH FEATURE SELECTION METHODS AND SENSITIVITY ANALYSIS ON MEDICAL DATA MINING

Authors: Raghavendra B.K. Jay B. Simha

IJAET/Vol. II/ Issue I/January-March, 2011/288-298

ABSTRACT
Feature selection is an important topic of research in data mining. Feature selection is the process of choosing a small subset of features that optimally is necessary and sufficient to describe the target concept. Sensitivity analysis is the process to calculate changes in the output due to changes in the inputs. Logistic regression has become a widely used and accepted method to analyze binary or multi class variables, since it is a flexible tool that can predict the probability for the state of a dichotomous variable. Artificial neural network has been sufficiently applied to medical problems in recent years. In this research work an attempt has been made to evaluate the performance of logistic regression and neural network model with feature selection method and sensitivity analysis on publicly available medical datasets. The results have been conclusive about the effectiveness of feature selection and sensitivity analysis for neural network model (with and without hidden layer) and validate the hypothesis of the research. The classification accuracy is used to measure the performance of both logistic regression and neural network models. From the experimental results it is observed that the neural network model (without hidden layer) with feature selection (using backward elimination method) and sensitivity analysis gives more efficient result.

STUDY CRUSHING AND FLEXURAL STRENGTH OF FIBER REINFORCED CONCRETE CONTAINING HIGH VOLUME FLY ASH

Authors: Indrajit Patel, C D Modhera

IJAET/Vol. II/ Issue I/January-March, 2011/299-305

ABSTRACT
Concrete is the most consumed material after water on the earth for infrastructure & construction industries, a commendable contribution can be made by optimizing the use of cement and natural resources in concrete manufacturing. High volume Fly Ash concrete is one of the major developments since last three decades leading to utilization of Fly Ash in a bulk quantity and thereby reducing cement consumption and ultimately reducing emulsion of CO2 in order of one ton per a ton of Cement. The past research has been given due consideration for application of HVFA in different sectors like mass concrete, foundation, transportation etc. But the limitations of HVFA like early slower strength development, ductility, poor performance towards expansion and contraction, flexural property, impact and abrasion resistance have made its use limited. Introduction of structural/non structural fiber with HVFA concrete application can overcome these problems and use of HVFA can be increased in developing nation like India for sustainability.

STUDY OF OVERCUT DURING ELECTRIC DISCHARGE MACHINING OF HASTELLOY STEEL WITH DIFFERENT ELECTRODES USING THE TAGUCHI METHOD

Authors: Dinesh Kumar, Naveen Beri, Anil Kumar

IJAET/Vol. II/ Issue I/January-March, 2011/306-312

ABSTRACT
Electric discharge machining (EDM) has been used mostly in the tool and die industry and the material normally used as tool electrode are copper, tungsten, graphite, brass, silver, copper tungsten and copper chromium alloys. In the present work, hastelloy steel is used as a work piece for investigating using sintered tool electrode of copper tungsten (CuW) with straight and reverse polarity setup in standard EDM oil. The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear. In this paper the effects of input parameters i.e. polarity, tool electrode material, peak current, pulse on time, duty cycle and gap voltage on the overcut was analyzed using analysis of variance and scattered graph. It was found that powder metallurgy tool electrode with reverse polarity gives minimum overcut and Best parametric setting for minimum overcut was found at –ve polarity, CuW (Cu 40% W 60%) tool electrode, 4 amp current, 150 µsec pulse on time, 0.83 duty cycle and 60 volts gap voltage i.e A2B2C1D3E2F2 .