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

                                                         -An Open Access Peer Reviewed e-Journal

 

 
 

TYPE OF FREEDOM OF SIMPLE JOINTED PLANAR KINEMATIC CHAINS USING C++

 

Authors: Chaudhari Ashok R.

 

IJAET/Vol. I/ Issue I/April-June, 2010/01-08

ABSTRACT
The work presented here is focused on the type of freedom of simple jointed planar Kinematic chains. The type of freedom of forty 9 links, 2-dof SJPKC are found from the Hamming method. The Hamming Number is computed by using the direct method of writing the hamming matrix, which save time and effort. Link Hamming string which is defined as the string obtained by concatenating the link Hamming number and the frequency of individual Hamming numbers in that row is then formed. Finally, chain Hamming string defined as the string obtained by the concatenation of the chain Hamming number and the link Hamming strings in descending order is formed. Type of freedom of multi-d.o.f. chain can be found by using hamming matrix. A multi-d.o.f. can posse’s full, partial or fractionated freedom. Full freedom and Partial freedom matrix are also derived to find out the type of freedom. Type of freedom will be help full during the synthesis of multi degree of freedom kinematic chains. C++ program is prepared to find out full freedom matrix, partial freedom matrix and type of freedom of the chains.

DRUG DELIVERY STUDIES OF GOLD NANOPARTICLES  DECORATED POLYLACTIC ACID-CO-ETHYL CELLULOSE NANOCAPSULES

 

Authors: K. Sathish kumar*, P.Senthil Kumar, V.Selvaraj,  M.Alagar

 

IJAET/Vol. I/ Issue I/April-June, 2010/09-16

ABSTRACT
The present work describes the synthesis and characterization of PLA-co-EC copolymer from lactic acid and ethyl cellulose by azeotropic dehydration, under reduced pressure, at 140ºC for 8 hours. The prepared PLA-co-EC copolymer was used for controlled drug release for an anticancer drug namely 6-Thioguanine with gold nanoparticles. Anticancer drug containing PLA-co-EC copolymer nanocapsules were prepared by solvent evaporation method in the presence and absence of gold nanoparticles. The drug entrapped nanocapsules were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The controlled drug release of anticancer drugs entrapped nanocapsules were carried out in 0.1M HCl and 0.1M phosphate buffer (pH-7.4). The results indicated that the drug release for gold nanoparticles/anticancer drug (Au@Drug) incorporated PLA-co-EC nanocapsules was controlled and slow compared to drug incorporated PLA-co-EC nanocapsules. This may be due to the strong interaction between the gold nanoparticles and anticancer drug in PLA-co-EC nanocapsules. However the drug release was found to be slow in 0.1M HCl compared to 0.1M PBS which may be due to the solubility characteristics of both the nanoparticles and the copolymer. Hence, gold nanoparticles act as good trapping agents which slow down the rate of drug release from nanocapsules.

MODELING A SMOOTH WALL CIRCULAR WAVEGUIDE MITER BEND USING WAVEGUIDE GAP THEORY

 

Authors: Kaushal Patel, Ved Vyas Dwivedi, Y. P. Kosta, H. B. Pandya

 

IJAET/Vol. I/ Issue I/April-June, 2010/17-26

ABSTRACT
This paper presents the analysis, design, and modeling of smooth wall miter-bend for a circular waveguide operating at 70 GHz. The approximate method theory is used for determining and numerically analyzing various losses in miter bend. It focuses on the technical-design issues related to the losses across a diameter-length gap between two aperture-coupled waveguide sections. The overall loss contributed due to the mode conversion and power loss into the air gap region has been considered. Through iterative 1st order finite element method simulations, the results are verified with the existing analytical theory for this gap loss. One way to obtain a proper loss estimate for International Thermonuclear Experimental Rector (ITER) miter bends is to validate the gap theory itself. Two main tasks are involved for validating the gap theory. First one verifies that the analytical expression for loss across a waveguide gap is correct and the other one verifies that the results in this gap relating to the loss in a miter bend is correct. The miter-bend loss is approximately half of the loss in this gap between two circular waveguides that meets the standard criteria very closely.

MEASUREMENTS AND SIMULATION FOR POWER QUALITY OF A WIND FARM

 

Authors: S.P. Shukla, Sushil Kumar

 

IJAET/Vol. I/ Issue I/April-June, 2010/27-36

ABSTRACT
This work investigates the impact of windfarm on the distribution network power quality. The quality of wind power is decided by IEEE Standard 519-1992 and IEEE Standard 1547. The experiments were carried out at the Vankuswade wind power project, Satara, (M.S.), India. The results are then compared by MATLAB simulation software (Version R2008a). The system is also simulated for system stability considering various faults on the simulated model. The field measurement results give important indications about the real effects of the integration of large interruptible renewable energy sources within the power system. The simulation results show an agreement with the measured response.

A COMPARATIVE STUDY ON STABILITY OF OHMIC CONTACTS TO MOLYBDENUM DISELENIDE SEMICONDUCTORS

 

Authors: Sumesh C. K.*, Patel K.D, Pathak V. M , Srivastav R.

IJAET/Vol. I/ Issue I/April-June, 2010/37-45

ABSTRACT
We tested various ohmic contact metallization schemes on n-MoSe2 semiconducting layered material to achieve low contact resistance, acceptable electronic characterization results and good device performance. The paper reports on the stability of three such ohmic contact formations such as Ag-painted contacts, indium-evaporated, and fused indium contact on molybdenum diselenide single crystals. The Ag-painted contacts show a leaky Schottky behavior and the contacts subjected to thermal annealing improves the Ohmic nature. This contact was found to be less reliable for any characterization purpose or device fabrication because of its high contact resistance and low stability against time. The indium-evaporated, Ag-painted contact shows considerably acceptable Ohmic behaviour. But these contacts are also less susceptible for conducting low temperature experiments and are not stable for longer period of time. The fused indium contacts in comparison with other two types of contacts, gives reliable Ohmic behaviour and is stable up to a temperature of 10K. This contact also found to be long-lasting. Hall parameters were evaluated for all the prepared contacts. Fused indium contacts are proved to be of sufficient quality to provide accurate resistivity and Hall Effect measurements pan.

ANALYTICAL MODEL OF REINFORCED CEMENT CONCRETE BEAM USING GLASS FIBRE REINFORCED POLYMER

 

Authors: *Prof. Parikh Kaushal. B. , Dr. Modhera Chetan. D.

 

IJAET/Vol. I/ Issue I/April-June, 2010/46-58

ABSTRACT
World wide, a great deal of research is currently being conducted concerning the use of fiber reinforced laminates/sheets in the repair and strengthening of reinforced concrete members. Fiber reinforced polymer (FRP) application is a very effective way to repair and strengthen structures that have become structurally weak over their life span. FRP repair systems provide an economically viable alternative to traditional repair system and materials. Analytical investigations on the flexural behaviour of RC beams strengthened using continuous glass fiber reinforced polymer sheets are carried out by using ATENA software. The effect of number of layers of sheet on ultimate load carrying capacity and failure mode of the beams are investigated.

METHOD DEVELOPMENT FOR SEPARATION AND ANALYSIS OF PR-2 ANTIFUNGAL PROTEIN FROM PUMPKIN RINDS USING REVERSE PHASE CHROMATOGRAPHY

 

Authors: Shrikant R. Kulkarni

 

IJAET/Vol. I/ Issue I/April-June, 2010/59-63

ABSTRACT
A novel antifungal protein (Pr-2) was separated from Pumpkin (Cucurbita pepo L.) rinds using Methanol soluble extraction, ultra filtration , and followed by separation of protein (Pr-2) using Reverse Phase Chromatography technique (RP-HPLC). Further characterization and thereby identification is done by using Mass Spectrometry (MS) and is found to be having molecular mass of the order of 14865.57 Da. Pr-2 is considered as good candidate for use as a natural antifungal agent.

ENERGY EFFICIENT MULTICAST ROUTING PROTOCOL FOR MANET

Authors: T.Sukumar

 

IJAET/Vol. I/ Issue I/April-June, 2010/64-73

 

ABSTRACT
Ad hoc network is a collection of wireless, mobile, dynamic, and arbitrarily located nodes. The nodes cooperate with each other to create an infra structure less temporary low cost network. The high mobility of nodes results in rapid changes in the routes, thus requiring some mechanism for determining new routes with minimum overheads and bandwidth consumption. Such infrastructure less networks use multicast routing protocols to manage random and uncertain events like rescue missions, disaster recovery, crowd control etc. The typical MANET routing protocols of IETF are shortest routing protocols and do not consider the energy aware problem. Because the ad hoc network is energy constrained system with the portable devices. The energy saving of network is important rather than shortest path. The existing multicast routing protocols suffer from many drawbacks [1, 2]. The shortest path consumes more energy due to repeated usage. This makes network partition and reduce the network lifetime. This paper presents a protocol called “Energy Efficient Multicast Routing Protocol (EEMRP)” which has extended the lifetime of each mobile node by evenly utilization of energy.

BEHAVIOUR OF GLASS FIBER WRAPPED CONCRETE COLUMNS UNDER UNIAXIAL COMPRESSION

 

Authors: P.Sangeetha, R.Sumathi

 

IJAET/Vol. I/ Issue I/April-June, 2010/74-83

ABSTRACT
Fiber – Wrapping using Fibre – Reinforced Plastic (FRP) shells is one of effective methods, significantly enhances the strength and ductility of concrete columns. The paper reports the behaviour of the GFRP wrapped concrete columns under uniaxial compression. The cross section of the concrete columns considered in the work is circular with diameter of 150mm and height 300mm. The Parameters that are varied in the investigation are wrapping shell materials, (which includes GFRP Materials Surface Mat(SM), Chopped Strand Mat (CSM) and Woven Roving Mat (WRM)), Number of Plies (1Ply and 3plies) and Period of Curing (7 & 28 Days). Results from a series of the experimental study were reported and discussed. The study on small – scale specimens showed that confinement increased the strength of the concrete columns loaded axially.

TIME TO ANALYSIS OF LONG SPAN SUSPENSION BRIDGES USING SERIES METHOD

 

Authors: N D Shah, D A Shah, Dr J A Desai, H S Patil

IJAET/Vol. I/ Issue I/April-June, 2010/84-94

ABSTRACT
Deflection theory is the basic theory of cable and stiffening girder suspension bridges. Geometric nonlinearity of suspension bridges due to dead load is taken in to account in this theory. Geometrical changes are having significant effects in suspension bridges, so it cannot be neglected in preliminary analysis of suspension bridges. Series method is a new method for the deterministic aerostatic stability analysis of suspension bridges. The geometric nonlinearity in the deflection theory and the three components of displacement-dependent wind loads are taken into account in the method. A computer program for calculating change in various geometric parameters of stiffened suspension bridges is developed using HTML. Again another computer program for finding a critical wind velocity of suspension bridges was developed using MATLAB.

A FORMAL APPROACH FOR AGENT BASED LARGE CONCURRENT INTELLIGENT SYSTEMS

 

Authors: Chaudhary Ankit, Raheja J L

 

IJAET/Vol. I/ Issue I/April-June, 2010/95-103

ABSTRACT
Large Intelligent Systems are so complex these days that an urgent need for designing such systems in best available way is evolving. Modeling is the useful technique to show a complex real world system into the form of abstraction, so that analysis and implementation of the intelligent system become easy and is useful in gathering the prior knowledge of system that is not possible to experiment with the real world complex systems. This paper discusses a formal approach of agent-based large systems modeling for intelligent systems, which describes design level precautions, challenges and techniques using autonomous agents, as its fundamental modeling abstraction. We are discussing Ad-Hoc Network System as a case study in which we are using mobile agents where nodes are free to relocate, as they form an Intelligent Systems. The designing is very critical in this scenario and it can reduce the whole cost, time duration and risk involved in the project.