A Review on Wireless Transport Layer Security
Wireless Application Protocol (WAP) is one of the technical standards for information over a mobile wireless network. Mobile devices such as mobile phones that use the protocol have a WAP browser as a web browser. WTLS (wireless transport layer security) inherited from TLS (Transport Layer Security). WTLS uses similar semantics adapted for a low bandwidth mobile device. As compared to TLS main changes are compressed data structures where possible packet sizes are reduced by using bit-fields, discarding redundancy and truncating some cryptographic elements. WTLS defines a compressed certificate format. This broadly follows the X.509 v3 certificate structure, but uses smaller data structures. Packet based design TLS is designed for use over a data stream. WTLS adapts that design to be more appropriate on a packet based network. WTLS design is based on a requirement that it be possible to use a packet network such as SMS as a data transport. There are number of WTLS security issues. WTLS processing more is fast as compared to using SSL. So it is suitable for wireless system. WTLS uses modern cryptography tools to enhance security. WTLS can provide different level of security for privacy, data integrity and authentications.
Published by: Chandan Sharma
Author: Chandan Sharma
Paper ID: V2I6-1254
Paper Status: published
Published: December 22, 2016
Antibacterial and Antifungal Activity from Seed Extracts Of Peganum Harmala
The aim of the study was to determine the strong antimicrobial and antifungal activity from the extracts of Peganum Harmala plant species by solvent extraction procedure. P. harmala seeds extract contains several important alkaloids such an important Oxamide compound was used for this study. Extracted product was isolated, purified and identified by Thin Layer Chromatography, UV-VIS Spectroscopy, FT-IR Spectroscopy and 1H-NMR, 13C-NMR Spectroscopy. Finally, the isolated compound Oxamide activity was checked and proved through the Candida albicans, Klebsiella pneumonia and Pseudomonas aeruginosa with MIC studies.
Published by: Jayaprakash Chinnappan, Veeran Mohanraj
Author: Jayaprakash Chinnappan
Paper ID: V2I6-1252
Paper Status: published
Published: December 21, 2016
An Approach for Reduction in Power Consumption in Low Voltage Dropout Regulator
A low-dropout or LDO regulator is a DC linear voltage regulator which can control the output voltage even when the supply voltage is very close to the output voltage. The advantages of a low dropout voltage regulator include the absence of switching noise ( as no switching takes place), smaller device size ( as neither large inductors nor transformers are needed), and greater design simplicity (usually consists of a reference, an amplifier and a pass element). A significant adiabatic logic with 180 nm CMOS technology is proposed to reduce impact of power supply reductions well as a simple symmetric operational transconductance amplifier is used as the error amplifier (EA), with a current splitting method adopted to increase the gain and also improves the bandwidth of the LDO regulator.
Published by: Shivani. S. Tantarpale, Ms. Archana O. Vyas
Author: Shivani. S. Tantarpale
Paper ID: V2I6-1251
Paper Status: published
Published: December 21, 2016
Optimization of Cycle Time through Mastercam Virtual Simulation and Four Axis CNC Milling Machining Of Camshaft
In olden days, the complexity of fabricating the mechanical components is higher and time consuming. Manufacturing industries normally use conventional methods like casting and forging process to shape components and use CNC machines to achieve final dimensions within the required tolerance. The difficulty in making components can be minimized by introducing the techniques for reduced setup time reduced machining time for increase in productivity and increase in accuracy and surface finish as a result of using 5- axis CNC VMC milling machining setup. But prior to start machining, a virtual simulation of the entire operations is to be carried out to check, verify and rectify the occurrence of collision, and the application of suitable parameters to achieve reduced cycle time. And this virtual simulation can be carried out through Mastercam software. This paper is focused on 4-axis finishing process of camshaft using 5-axis CNC VMC milling machine. This work involves geometric modeling of camshaft using Solid Works software. The model is then imported to Mastercam software for applying different methods and parameters to simulate the tool. Then the suitable parameters having collision free and reduced cycle time is taken into account. Then, the NC program is generated using the required post processor and program is entered to the 5- axis CNC milling machine to perform both roughing process and finishing process. Material used is Aluminum Alloy 6061. As per the experimental results, it has been observed that constant overlap spiral tool path for top part machining is selected and high speed tool path is selected for bottom part 3- axis rough machining and rotary 4 axis tool path for final finishing ensuring collision free and reduced cycle time. The cycle time resulted by Mastercam software is less than the cycle time resulted by the 5 axis CNC VMC milling machine. Then, the total machining time of camshaft as per the profile were found to be 5.83 hours and 52 seconds.
Published by: Prasanth Navaneetham, V. G. Umasekar, Bibin Baby
Author: Prasanth Navaneetham
Paper ID: V2I6-1250
Paper Status: published
Published: December 21, 2016
Risk Analysis in Construction Scheduling
Large and complex construction projects always face an uncertainty that leads to risks of delaying the project. Construction projects are of different sizes and of different nature and risk associated with them also vary. Schedules are very essential to the successful execution of projects. Without a schedule, it is difficult to coordinate the various activities found in a construction project. Most schedules are developed in a deterministic manner using Critical Path Method. Unfortunately, construction schedules are affected by various uncertainties. As a result, schedule delays are common in various construction projects. Therefore, it is important to find out probabilities of schedule delays. To evaluate the probability of construction time-overruns and Forecasting of appx. Accurate project completion date is a challenge to construction schedulers. Management of risks and uncertainties in construction projects is possible if risks have been identified and the potential impacts have been analyzed. The Critical Path Method (CPM), which is used to schedule construction activities, is deterministic with regard to the duration assigned to the execution of the activities and the results produced in certain values. Unfortunately, construction activities are performed under uncertain conditions. Project risks cause variations in activity duration, and in turn the entire network is affected by uncertainty. To evaluate construction networks by considering risk factors, nondeterministic scheduling methods such as the program evaluation and review technique (PERT), the probabilistic network evaluation technique (PNET), Critical Chain Scheduling (CCS), and Monte Carlo simulation (MCS) have been developed. In the present work, an attempt is made to study the effect of uncertainties in the project on the total duration of the project in an Indian context. For this, Monte Carlo simulation (MCS) technique is used. Effect of different distributions for different activities and the number of simulations on the total project duration are determined and compared with the CPM and PERT. Finally, sensitivity analysis is carried out to show the influence of each uncertain activity on the total project duration.
Published by: Musale Kunal Rajendra, Aher M. C.
Author: Musale Kunal Rajendra
Paper ID: V2I6-1246
Paper Status: published
Published: December 20, 2016
Review of VANET Routing in Opportunistic Environment
Vehicular Ad hoc Network (VANET) is based on principles of Mobile Ad hoc networks (MANET). It is a spontaneous process of data exchange from one node to another node. Vehicular networks comes with new promising field in wireless technology which is used to deploy a vehicle to vehicle communication (V2V) and vehicle to infrastructure (V2I) communication between nodes. In VANET routing main drawback is packet dropping, but it will be reduced by intelligent routing which can be optimized by met heuristics. In this thesis we proposed VANET based routing which depend on shortest path and social information, optimize by met heuristics.
Published by: Dhanveer Kaur, Harwant Singh Arri
Author: Dhanveer Kaur
Paper ID: V2I6-1242
Paper Status: published
Published: December 19, 2016
