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

                                                        -An Open Access Peer Reviewed e-Journal

 

 
 

UTILIZATION OF ENERGY FROM SEA WAVES-A REVIEW OF TECHNOLOGIES AND PROSPECTUS IN INDIA

 

Authors: S.B.Taware, P.B.Pawar, S.M.Dhumal

 

IJAET/Vol. I/ Issue II/July-September, 2010/01-09

ABSTRACT
Current Energy resources are having limitations on their use. These continuously reducing resources have increased importance of sustainable energy resources. Generating electricity from sea waves is one of the alternatives available and significant studies have been carried out on various technologies for the same. This paper takes review of technologies which are used to utilize the tremendous amount of energy available in sea waves as well as equipments which are used in wave energy utilization plant. Wave energy is available for India with vast coast line. This is going to be an alternative to meet increasing power demand and also for remote islands.

INTRODUCTION TO NEW FEATURES OF VISUAL BASIC 2010

 

Authors: Mayur Patel, Neha Patel, Nirmit Shah

 

IJAET/Vol. I/ Issue II/July-September, 2010/10-15

ABSTRACT
The Visual Basic language has always been an exceptional production tool for building applications. It continues to provide easy access to the Microsoft.Net Framework, allowing developers to write applications that extent desktop, phone, browsers and even the cloud. This paper reviews examines the new features added to Visual Basic 2010 like Statement Lambdas, Line Continuation, Auto Implemented Properties, Dynamic Language Runtime, Multi Targeting .

SOME STUDIES ON ELECTRIC DISCHARGE MACHINING OF HASTELLOY USING POWDER METALLURGY ELECTRODE

 

Authors: *1Vijay Kumar, Naveen Beri, Anil Kumar, Paramjit Singh

 

IJAET/Vol. I/ Issue II/July-September, 2010/16-27

ABSTRACT
In this paper, an attempt has been made to study the process performance of electrical discharge machining with powder metallurgy tool electrode during the machining of hastelloy using positive polarity. Where current and voltage are taken as process input parameters and material removal rate, tool wear rate, percentage wear rate, surface roughness are taken as output parameters. A set of ten experiments were performed on electronica make smart ZNC electric discharge machine and relationships were developed between input and output parameters. The study indicates that, the maximum material removal rate is at the average value of current and above average value of voltage within selected range of process input parameters, the minimum tool wear rate is with the minimum value of current and voltage, the minimum Percentage wear rate for below average value of current and minimum voltage, the minimum average surface roughness for average value of current and voltage.

SOME EXPERIMENTAL INVESTIGATION ON ALUMINUM POWDER MIXED EDM ON MACHINING PERFORMANCE OF HASTELLOY STEEL

 

Authors:Paramjit Singh, Anil Kumar*, Naveen Beri, Vijay Kumar

 

IJAET/Vol. I/ Issue II/July-September, 2010/28-45

ABSTRACT
In this paper, an attempt has been made to study the effect of aluminium powder mixed in the dielectric fluid of Electric Discharge Machining on the machining characteristics of Hastelloy. Concentrations of aluminium powder and grain size of powder are taken as process input parameters. Material removal rate, tool wear rate, %age Wear Rate, surface roughness are taken as output parameters to measure process performance. The experimental investigations are carried out using copper electrode. Nine experiments are performed on Hastelloy using Electronica make smart ZNC EDM machine. Relationships are developed between various input and output parameters. The study indicates that both the input parameters strongly affect the machining performance of Hastelloy. The addition of aluminium powder in dielectric fluid increases MRR, decreases TWR and improves surface finish of Hastelloy.

DESIGN OF AN ECO-FRIENDLY COOLANT FOR GRINDING APPLICATIONS

 

Authors: T. D. Lavanya, V. E. Annamalai*

IJAET/Vol. I/ Issue II/July-September, 2010/46-54

ABSTRACT
Synthetic coolants are important to meet required productivities in grinding. The disposal of synthetic coolants is a difficult issue since it poses environmental hazards. There have been many attempts to either minimize the use of coolants or to develop new compositions for eco-friendly coolants. The present paper discusses the possibility of using anti bacterial additives to develop eco friendly coolants based on water. The performance of the new coolant is studied in cylindrical grinding application and shown to be on par or better with that of synthetic coolants.

QUANTUM DOTS AND NANOWIRES: FABRICATION AND CHARACTERIZATION

Authors: Virk H. S.*

 

IJAET/Vol. I/ Issue II/July-September, 2010/55-60

ABSTRACT
Quantum Dots and Nanowires have emerged as backbone of 21st century industry based on nanotechnology. A variety of nanofabrication techniques have emerged during the last two decades like atomic deposition, chemical methods, chemical self assembly, cluster methods and lithographic techniques. However, the electrochemical method involving the electro-deposition of metals/semiconductors into etched pores of Ion Track filters/membranes is a simple and convenient technique. Template synthesis of Quantum Dots and Nanowires has been achieved by using anodic alumina membranes and polymer membranes of pore diameter varying from 20-200 nm. The copper nanowire micrographs show non-uniformities in growth. Using Reverse Micelle technique, nanorods of Barium carbonate and Barium oxalate were synthesized along with nanocrystals of Iron oxalate. Cadmium sulphide nanocrystals and needles have been grown using micro-emulsion technique with different co-surfactants. Characterization of grown nanostructures has been done by using SEM, TEM and XRD.

PERFORMANCE OF LOW LIME STABILIZED FLY ASH

Authors: Kishan Dharavath* Ankur Gupta Tikaram Kafley

 

IJAET/Vol. I/ Issue II/July-September, 2010/80-89

 

ABSTRACT
This paper present the effect of lime and gypsum on liquid limit, specific gravity, optimum moisture content (OMC) and maximum dry density (MDD)upon stabilization with low lime fly ash. An extensive series of test were conducted on low lime fly ash adding varying percentage of lime and gypsum (lime: 5%, 8%, 12% and gypsum: 0.4% and 0.8%). From the test result it is observed that the increase in the percentage of lime results in the increase in the liquid limit, up to 8% and the rise between 5% to 8% of lime is not remarkable. The similar pattern was observed with the sample stabilized by gypsum. Specific gravity of fly ash first decreases up to 8% of lime with raw fly ash and then it increases with further increase of lime in fly ash. Liquid limit characteristic of stabilized fly ash improved by addition of lime,gypsum and by both. This paper discusses the effects, reasons and advantages of improved properties of fly ash stabilized with different percentages of lime and gypsum.

SENSITIVITY OF Ft TO VARIOUS GEOMETRICAL PARAMETERS IN 30 nm GATE LENGTH FinFETs

 

Authors: K R VishnuPriya, B.Lakshmi, R Srinivasan*

 

IJAET/Vol. I/ Issue II/July-September, 2010/90-97

ABSTRACT
This paper investigates the effect of device geometry variations on unity gain frequency (ft) in 30 nm gate length FinFETs by performing extensive TCAD simulations. Simulations are performed at 2D level. At 2D level, we have the opportunity to change gate length, fin width, gate oxide thickness, underlap, source/drain width, and source/drain length of the device. It is found that ft is more sensitive to gate length, underlap and gate oxide thickness and less sensitive to source/drain width and length variations.

EFFICIENT FIRST ORDER SIGMA DELTA MODULATORS

 

Authors: Yogesh Shrivastava, Lalita Gupta, J. S. Yadav

IJAET/Vol. I/ Issue II/July-September, 2010/99-105

ABSTRACT
In communication systems the present trend is to move the border between the analog and digital interface as close as possible to the point where information is received or emitted, in this way most of SoC functionalities are implemented in the digital domain. in this work an efficient first order sigma delta modulator has been designed in circuit level, considering the possible non-idealities in 65nm CMOS technology .this study at first determines the of sigma delta modulator. The non idealities investigated here are clock jitter noise that affects the input signal and increases total error power; then the thermal noise of switches caused by random fluctuation of carrier that increases the total noise power thereafter, circuit leakage causes the limited DC gain and affects signal to noise ratio sum distortion ratio. The non idealities are reduced by using folded cascade op-amp at the integrator stage designed using Pspice simulation tool which can be implemented for practical usage.

ANALYSIS OF AMBIENT AIR QUALITY USING AIR QUALITY INDEX – A CASE STUDY

 

Authors: Prakash Mamta*, Bassin J.K.

 

IJAET/Vol. I/ Issue II/July-September, 2010/106-114

ABSTRACT
This study reports the analysis of the ambient air in Delhi city employing air quality index (AQI). The 24-hourly average concentrations of four major criteria pollutants, viz. Suspended particulate matter (SPM), Respirable suspended particulate matter (RSPM), Sulphur Dioxide (SO2), and Nitrogen Dioxide (NO2) for the year2009 at three different locations in Delhi city (industrial at Mayapuri, commercial at Town Hall and residential at Sarojini Nagar) have been considered for this analysis. The AQIs were calculated using IND-AQI procedure. It has been observed that the calculated AQIs values SO2 and NO2 fall under ‘good’ and ‘good-to-moderate’ categories. The calculated AQIs values of SPM and RSPM fall under all the four categories with varying percentages. The overall AQI was found to fall under the category ‘poor’ and ‘very poor’ owing to RSPM and SPM, respectively. Thus it is observed that SPM is critical pollutant at these three sites in Delhi.

DESIGNING OF DATA EXCHANGE PROTOCOL BY INTEGRATING DICOM USING HL7 STANDARD TO DEVELOP DATA EXCHANGE GATEWAY TO SUPPORT SECURES DATA FLOW

 

Authors: Prof Kulvinder Singh Mann, Dr Harsh Sadawarti, Rupinder Kaur and Ramandeep Kaur

 

IJAET/Vol. I/ Issue II/July-September, 2010/115-122

ABSTRACT
Health care has become one of the most important services. Hospitals, physicians, insurers, and managed-care firms are networking, merging, and forming integrated organizations to finance and deliver health care. This paper mainly does some research on the problem of secure data flow. Data access is enabled via internet browser technology. Relevant patient and image acquisition information is extracted from the DICOM images and stored into a relational database. Patient information such as radiological findings are transferred from the Radiological Information System (RIS) into the database. Image data is accessed viewer. Since data security mechanisms either by a fast preview tool , a DICOM encryption of sensitive patient data is implemented. The method allows a dynamic selection of the data to be encrypted.

INFLUENCE OF TYPE OF SUPERPALSTICIZERS ON WORKABILITY AND COMPRESSIVE STRENGTH OF REACTIVE POWDER CONCRETE

 

Authors: M K Maroliya*,C D Modhera

 

IJAET/Vol. I/ Issue II/July-September, 2010/123-130

ABSTRACT
Reactive powder concrete is a special concrete having ultra high strength and ductility. It is an engineered cementitious composite where the microstructure is optimized by precise gradation of all particles in the mix to yield the maximum density. It uses extensively the pozzolanic properties of highly reactive silica fume and optimization of Portland cement to produce the highest strength hydrates. Potential application of reactive powder concrete (RPC) include, prestress structures without passive reinforcement, pressure precast pipe, impermeable container for hazardous fluids of nuclear waste. RPC is a cold cast cementitious material, in which the mechanical properties of the composite matrix are improved by,   Suppression of the weak interfacial transition Zone normally developed around the aggregates through improved particle packing and,Refinement of the hydrated paste microstructure by extensive use of pozzolanic silica and elevated temperature curing. RPC is unique in attempting to optimize the entire grain size distribution of the composite matrix in particular; there are five central design tenets for RPC Enhancement of homogeneity by the elimination of coarse aggregate Enhancement of the compacted density by optimizing the granular mixture and optionally applying pressure before and during setting.Enhancement of the microstructure by heat treatment after hardening Improved ductility through the incorporation of steel fibers.Maintaining mixing and casting procedure as close as to existing concrete industries practice.This paper reports the influence of the type of superplasticizers (SNF, SMF, Polycarboxylic ether) on strength and workability of reactive powder concrete.

TCAD SIMULATION STUDY OF FINFET BASED LNA

 

Authors: K K Nagarajan*, N Vinodh Kumar and R Srinivasan

 

IJAET/Vol. I/ Issue II/July-September, 2010/131-140

 

ABSTRACT
The effect of gate – drain/source underlap (Lun) on a narrow band LNA performance has been studied in 30 nm FinFET using device and mixed mode simulations. In order to have a fair comparison, the threshold voltage (Vth) of the FinFETs is kept constant for different Lun devices. LNA circuit with two transistors in a cascode arrangement is constructed and the input impedance, gain and noise-figure have been used as performance metrics. To get the better noise performance and gain, Lun in the range of 3-5nm is recommended.

DEVELOPMENT OF SEMANTIC BASED INFORMATION RETRIEVAL USING WORD-NET APPROACH

 

Authors:  Ms. P. Nithiya, Ms. V. Vidhya, Dr. L. Ganesan

 

IJAET/Vol. I/ Issue II/July-September, 2010/141-149

ABSTRACT

Semantic-based information retrieval mechanism that handles the processing, recognition, extraction, extensions and matching of content semantics to achieve the following objectives: i) to analyze and determine the semantic feature of the content and to develop a semantic pattern that represent the semantic features of the content. ii) to analyze user’s query and extend its implied semantics through semantic extension to identify more semantic features for matching. iii) to generate contents with approximate semantics by matching against the extended query to provide correct contents to the querist.

ARTIFICIAL GROUND WATER RECHARGE FIELD STUDY : SITE CHARACTERIZATION AND TEST RESULTS

 

Authors:Prof. Pratima Patel, Dr. M. D. Desai

 

IJAET/Vol. I/ Issue II/July-September, 2010/150-164

ABSTRACT
Over-exploitation of local ground-water resources can be prevented by inducing ground-water mounding through artificial recharge using rain water stored in specially constructed basins. In order to maintain the regional water balance and to assure optimal use of available water, knowledge of the water-table fluctuation in response to the proposed recharged scheme is essential. In this paper suitability of the site criteria for recharge bore well is discussed. Also focused on collection of surrounding site geotechnical data, topography of the site, geometrical parameters, evaluation of aquifer, and mathematics of ground water. Mathematical modelling of ground water flow related to unconfined aquifer with a change in saturated thickness with variation in Piezometric level, permeability, radius of influences or distance between two recharge well and presence of recharge by rainfall is discussed here. By using quadratic mathematical expression some significant relationship can be established. Drawdown and detention time of water storage can also be determined. The technique is implemented to an unconfined aquifer with horizontal impervious base receiving vertical recharge using rain water stored in specially designed basin. Authors have set up precast octagonal recharge well system at proposed site and suggested design parameters for roof top rain water recharge system. Recharging capacity of well can be evaluated by field test and confirmed with analytical solution. Authors have established correlations between radius of bore well r and depth of pervious strata h with capacity of borehole Qr which are adopted at site and gives satisfactory results, few are highlighted.

EFFECT OF LIFTING AID ON RECOMMENDED WEIGHT LOAD AND LIFTING INDEX IN SINGLE TASK LIFTING USING REVISED NIOSH LIFTING EQUATION

 

Authors:  *Sarbjeet Singh., Sunand Kumar

 

IJAET/Vol. I/ Issue II/July-September, 2010/165-172

ABSTRACT
The National Institute for Occupational Safety and Health (NIOSH) developed a lifting equation in 1981 and was revised in 1991 to indicate safe occupational lifting limits. The equation uses a series of lifting multipliers (parameters) to calculate corresponding recommended task weight limits and lifting index. This case study investigated the effectiveness of mechanical lifting aid in single task lifting. Thirty industrial plant workers participated in the sagitally bi-symmetric single task lifting in three field sessions with 10, 15 and 20 kg. Manual and mechanical lifting is done and RWL and LI is calculated using revised NIOSH lifting equation. In mechanically assisted lifting it is observed that for 10 and 15 kg there is decrease in task time and physical stress associated with lifting. In 20 kg lifting it is recommended that the load should be shared between two workers.

SOLVENT EFFECT ON THE NUCLEOPHILIC DEBENZOYLATION OF P- NITROPHENYL BENZOATE WITH HYDROXAMATE IONS

 

Authors: Santosh K. Sar*, Nutan Rathod, Piyush Kant Pandey

 

IJAET/Vol. I/ Issue II/July-September, 2010/173-183

ABSTRACT
Rate constant have been measured kinetically for the reaction of p-nitrophenyl benzoate with some α-effect nucleophiles, i.e acetohydroxamate benzohydroxamate and salicylhydroxamate ions in dimethyl sulfoxide, dimethylformamide, 1,4 dioxane and acetonitrile water mixture of varying compositions 10-60% at 27şC. The reactivity of hydroxamate ions towards p-nitrophenyl benzoate depends upon the nature of substrate and solvents. The kinetic results have been explained on the basicities, solvation effect , α-effect and ground state stabilisation.

INTERPRETATION OF UNDERWATER NOISE SPECTRA AT DIFFERENT RAINFALL AND WIND SPEED CONDITIONS BASED ON TIME SERIES HYDROPHONE VOLTAGE SIGNAL PROCESSING

 

Authors: S. Sakthivel Murugan, Dr.V.Natarajan, Lenin Joseph

 

IJAET/Vol. I/ Issue II/July-September, 2010/184-194

ABSTRACT
Underwater sound produced by rainfall has unique characteristics. The measurement of such a sound signal can be used for the prediction and measurement of rainfall. This paper estimates and analyses the ocean ambient noise spectra to identify the noise band of underwater sound due to rainfall. In this work, spectral estimation of the underwater rain noise is performed using real time ocean ambient noise measurements taken from offshore Chennai. The paper simulates the underwater rain noise spectra in order to identify the two possible sources of underwater noise produced by rainfall as impact sound and pulsations of entrained bubbles. The simulation results show that small raindrops which are present in most types of rain are responsible for a unique 15 kHz sound in the spectra. The spectral interpretation is done depending on the measured rainfall rate from satellite data. It is observed that the sound produced by large raindrops is highly correlated with rainfall rate. The estimated spectrum is analyzed under different rainfall rates and varying wind speed conditions.

DIRECTION OF ARRIVAL ESTIMATION

 

Authors: Lalita Gupta, R P Singh

 

IJAET/Vol. I/ Issue II/July-September, 2010/195-199

ABSTRACT
Array Signal Processing (ASP) is a relatively new technique in Digital Signal Processing (DSP) with many potential applications in communication and speech processing. Direction of arrival (DOA) can be estimated using different techniques evolved with ASP. It is observed that subspace method provides superior performance in resolving closely spaced source.

EXPERIMENTAL INVESTIGATIONS ON PULSED TIG WELDING OF ALUMINIUM PLATE

 

Authors: Sanjeev Kumar

 

IJAET/Vol. I/ Issue II/July-September, 2010/200-211

ABSTRACT
Aluminium Plates (3-5mm thickness) are being commercially welded by Pulsed Tungsten Inert Gas Welding Process (PTIGW). In the present work, an attempt has been made to explore the possibility for welding of higher thickness plates. An aluminium plate of 6mm thickness has been selected as specimen. Input process parameters (Mean Welding Current, Pulsed Current, and Gas Flow Rate) were varied according to full factorial experimental design. The output parameters were (Tensile Strength and Shear Strength). Photomicrographs of welded Specimens were taken and analyzed. The results of the study will be useful for enhancing commercial application of PTIGW on higher thickness aluminum plates. Also the study highlight reasons for not using DC power source for welding of aluminum plates.

MULTIMEDIA STREAMING FOR THE FUTURE GENERATION MOBILE NETWORKS

 

Authors: S. Swarna Parvathi, Dr. K. S. Eswarakumar

 

IJAET/Vol. I/ Issue II/July-September, 2010/212-219

ABSTRACT
The popularity and evolution of mobile devices like laptops, mobile phones and Personal Digital Assistants (PDA), and the evolution of fast mobile networks in the last decade, have made it possible to increase the complexity of mobile applications and services provided to end-users. The evolution of the mobile broadband network to the Fourth Generation (4G) wireless network will provide for the delivery of high-speed video, voice and data services directly to a cellular handset or handheld Internet device. It is expected that end-to-end IP and high-quality streaming video will be among 4G's distinguishing features. This paper deals with understanding the features and challenges, the proposed architectural frameworks, multimedia support especially multimedia streaming services and multiple access schemes for 4G.

A 3.1 – 4.8GHZ LOW POWER DIFFERENTIAL LNA FOR MB-OFDM ULTRA WIDEBAND APPLICATIONS

 

Authors:  Vaithianathan. V, Dr. Raja. J  and Arun. V

 

IJAET/Vol. I/ Issue II/July-September, 2010/220-230

 

ABSTRACT
In this paper, a gain controllable Shunt-Series peaking differential Low Noise Amplifier (LNA) is proposed with common gate core stage and common drain buffer as an output stage. The proposed circuit is designed using 90nm CMOS technology to achieve the target specifications which include a power gain (S21) of 10dB with a noise figure (NF) of less than 4dB over the first 3 bands of MB-OFDM and an in-band IIP3 of -1dBm. The input matching (S11) and output matching (S22) are kept well below -10dB while the reverse isolation (S12) is less than -30dB. The LNA consumes a very little power of less than 12mW while operating at 1V power supply

SLEW-RATE ENHANCEMENT CIRCUIT FOR SINGLE - STAGE FOLDED -CASCODE AMPLIFIERS

 

Authors:   *Vijendra Singh Chandel, Dr. Ajay Somkuwar

 

IJAET/Vol. I/ Issue II/July-September, 2010/231-236

 

ABSTRACT
A slew-rate enhancement circuit using a current comparator and a low-voltage Class-AB output stage is introduced in this paper. By using a single-point-detection (SPD) technique at the active load device of the core amplifier to sense fast signal transient. The idea is applied for a single-stage folded-cascode amplifier. The folded-cascode amplifier with SRE circuit achieves 3.33V/µs slew-rate with 500pF capacitive load while only dissipating 100µA total static current.

A 3.1 – 4.8GHZ LOW POWER DIFFERENTIAL LNA FOR MB-OFDM ULTRA WIDEBAND APPLICATIONS

 

Authors:  Vaithianathan. V, Dr. Raja. J,and Arun. V

 

IJAET/Vol. I/ Issue II/July-September, 2010/237-247

 

ABSTRACT
In this paper, a gain controllable Shunt-Series peaking differential Low Noise Amplifier (LNA) is proposed with common gate core stage and common drain buffer as an output stage. The proposed circuit is designed using 90nm CMOS technology to achieve the target specifications which include a power gain (S 21 ) of 10dB with a noise figure (NF) of less than 4dB over the first 3 bands of MB-OFDM and an in-band IIP 3 of -1dBm. The input matching (S 11 ) and output matching (S 22 ) are kept well below -10dB while the reverse isolation (S 12 ) is less than -30dB. The LNA consumes a very little power of less than 12mW while operating at 1V power supply.

STUDY ON PROPERTIES IMPROVEMENT AND PERFORMANCE BENEFIT OF DIESEL-ETHANOL-BIODIESEL BLENDS WITH HIGHER PERCENTAGE OF ETHANOL IN A MULTICYLINDER IDI DIESEL ENGINE

 

Authors:   D.B. Hulwan*, S.V. Joshi  Y.V. Aghav

 

IJAET/Vol. I/ Issue II/July-September, 2010/248-273

 

ABSTRACT
The ability of biodiesel to act as a co solvent and properties improver for the Diesel-Ethanol blends has been tested to make the blends of Diesel-Ethanol with higher percentage of ethanol in the blends. The different blends prepared on volume basis have the Diesel Ethanol and Biodiesel percentage as 80:10:10(blend A), 70:20:10(blend B), 60:25:15(blend C), 50:30:20(blend D), 50:40:10(blend E) respectively. The blends are prepared to have density, viscosity, Cetane index, within the acceptable limits and maximum oxygen contents. The blends were tested on a four cylinder IDI, naturally aspirated diesel engine for variable loads at 1200, 1600 and 2000 RPM and results compared with diesel fuel performance as a baseline. The results showed that oxygen content is increased 14.55% by weight at the expense of 19% reduction in calorific value, 24% reduction in Cetane index and viscosity reduction to minimum acceptable limit for blend E. The brake thermal efficiency is improved slightly; however increase in specific fuel consumption is also observed at all the speeds and loads. The smoke is reduced remarkably for the blends at all speeds and loads. The NO emissions are increased at 1200 RPM but not affected at 1600 and 2000 RPM except for blend E. The carbon monoxide emissions are reduced but HC and CO2 emissions increased slightly. The peak firing pressure and the ignition delay are found to be increased. The drastic change in the combustion characteristics of the blend E is observed due to its lower Cetane index.

DESIGN GUIDELINES FOR FLEXURAL STRENGTH OF SINGLY REINFORCED CONCRETE BEAM STRENGTHENED WITH FIBRE REINFORCED POLYMER LAMINATE AT BOTTOM

Authors:  K. B. Parikh and Dr. C. D. Modhera

 

IJAET/Vol. I/ Issue II/July-September, 2010/274-282

 

ABSTRACT
The design guidelines for the determination of limiting moment capacity of reinforced concrete beam strengthened with fiber reinforced polymer laminate at bottom is presented. The results derived from this design oriented model compared with analytical finite element model and others available researchers’ experimental data. This study also presents the design of laminate thickness to attain a specified limiting moment capacity in a given beam. The results show that the design guidelines presented in this study, performed well in the prediction of experimental results.

REAL TIME APPLICATION TO GENERATE THE DIFFERENTIAL TIME LAPSE VIDEO

 

Authors:  Dipesh G. Kamdar*, Dr. C. H. Vithlani

 

IJAET/Vol. I/ Issue II/July-September, 2010/283-291

 

ABSTRACT
Differential Time Lapse video is non periodic time lapse technique. It is important for the documentary particularly which are not natural. The disadvantage of the differential time lapse video is that it does not provide the information about at which time the event is recorded. In order to overcome this limitation of the differential time lapse video, the visual watermarking is used in real time application. The visual watermarking used here is loss less. MATLAB based algorithm is used for generating the differential time lapse video along with the date and time stamping using the visual watermarking.

EVALUATION OF SHEAR STRENGTH OF SELF - COMPACTING CONCRETE DEEP BEAM

Authors: Shah D.L. and Modhera C.D.

 

IJAET/Vol. I/ Issue II/July-September, 2010/292-305

 

ABSTRACT
Self-Compacting Concrete (SCC) is a new generation high performance concrete known for its excellent deformability and high resistance to segregation and bleeding. There is some concern among researchers and designers for SCC, that it may not be strong enough in shear because of lesser amount, smaller size and the weak interlock mechanism of coarse aggregate. The use of concrete deep beams is gaining rapid popularity in modern construction industry due to space required free from columns. In case of deep beam, shear failure is prominent and aim of the research is to investigate experimentally the effect of crack and deformation characteristics of SCC with and without inclusion of steel fibers for various span-to-depth ratios of deep beams .The obtained test results are compared with empirical formulas provide in the current ACI 318-2008 code, CIRIA Guide 2 code and Strut –and –Tie Model of ACI 318-08. A comparison shows that the shear capacities of SCC deep beams predicted from empirical formulas provided in codes are unconservative. In addition, a higher unconservatism appears as length/depth increases, while Strut-and-Tie Model predicts fairly satisfactory.