Secure information transmission has always been of immense importance in all sorts of communication systems. In this area, cryptographic algorithms have been evolved and employed over decades. After the release of Advanced Encryption Standard (AES) most of the people have made its animations in 128-bit, which is very difficult to understand by the beginners. This paper is about complete structure of Simplified Advanced Encryption Standard (SAES) and its step by step implementation in graphics form using Flash. Aim of this paper is to represent SAES in such an easy way that it helps beginners to understand each step of key [...]

The term machinability of workpiece materials relates to the easiness of a metal to be machined to an adequate surface finish. This paper clarified the analysis of laser sintered material machinability with mean of predicted cutting force and temperature distribution. 2D orthogonal cutting was employed on edge design tools with updated Lagrangian coupled thermo mechanical plane strain model. Adaptive meshing, tool edge radius and various types of friction models were assigned to obtain precise cutting results. Cutting force and cutting-edge temperature estimated by FE analysis are validated against corresponding experimental values by previous researchers. From the study, cutting force increases [...]

A graph G is said to be domination dot stable ( DDS ) if ? ( G uv ) = ? ( G ), for all u, v ? V ( G ), u adjacent to v. In this paper we show that every graph is an induced subgraph of a DDS graph and we discuss few methods of generating new DDS graphs from existing DDS graphs using various graph operations. [...]

The success of an organization during New Product Development activities in the long run depends on the ability to base its strategies and processes on the products it makes. This scientific paper presents green design product lifecycle management for incorporating green engineering concepts into new product design. The proposed Product Lifecycle Management tool begins at DEFINE / PLANNING phase and ends at MANAGEMENT REVIEW phase. Developing a process in green engineering is very important. Poor process would results in ineffectiveness for contributing green design into the society. The result of this paper is any organization can implement this proposed green [...]

The health effects of noise among residents of Obantoko, Ogun State, Nigeria was assessed using 43- item questionnaire. A sample size of 262 persons was randomly selected which cut across different age groups and sex. Results showed that Obantoko residents are in constant exposure of generator noise which results in adverse health effect of the habitants which includeshearing impairment, interference with spoken communication, sleep disturbances, cardiovascular disturbances, impaired task performance and negative social behavior and annoyance reactions. The negative health effects of noise noted among residents of Obantoko deserves urgent attention. [...]

This research is conducted to examine the performance of concrete where bio-materials like rattan, wood and bamboo are used as coarse aggregate (CA). Related comparison is made with the concrete where conventional stone is used. Three mixing ratios -1:2:2, 1:2:2 and 1:2:4, having the same water to cement ratio were considered in this research. Full study was conducted by Ordinary Portland Cement (OPC) and sand of a constant FM. The maximum size of any coarse aggregate was kept below 19 mm. Curing of all samples was done for 28 days and crushing was performed after 56 days. Within this time [...]

In the present paper, a study has been conducted to investigate the shock induced turbulent flow fields and shock/turbulent-boundary layer interaction at the nozzle divergent. Experimental photographs and numerical images are used to investigate on laminar flow structures, transition phenomena, flow separation line as well as viscous boundary layer separation, turbulence structure development and shock/turbulent-boundary layer interaction. It is observed that transition from laminar to turbulent flow separation is shown earlier at the nozzle divergent for the weaker shock wave propagation and the fully developed turbulence is appeared with unsteady flow fluctuations at the end of the nozzle divergent. It [...]

A Mobile AdHoc Network (MANET) is a network of nodes that communicating with each other without help from a fixed network infrastructure. Securing MANETS is an important part of deploying and utilizing them, since they are often used in critical applications like Commercial, Military, and Private sector where data and communications integrity in important. To obtain an acceptable level of security, conventional security solutions are supposed to be attached with an intrusion detection mechanism. In this thesis, we analyze few wireless Adhoc security attacks and vulnerabilities relative to topology control schemes and evaluate their performance under hostile environments. We propose [...]

In this paper, a 4x4 half-wavelength open Dipole multi-input multi-output (MIMO) measurements campaign at a frequency of 5.2 GHz is presented. Channel transfer function of the system is measured within 400MHz for different antenna polarization and displacement. Channel capacity, Correlation Coefficient, Ricean K-factor, as well as the channel delay spread are investigated in order to estimate the performance of a real MIMO dipole in an indoor environment. It is observed that with a fixed SNR, the capacities of VV and HV configuration increases with distance whereas HH and VH decreases with distance. Furthermore, it was realized that a set [...]

In this paper a complete system of recognition and controlling of any vicinity security parameter is proposed based on the neural network architecture for automation and self decision making for the vehicle authentication and permission for entering into the premises of Iqra University Main Campus .This Implemented Process is based on the Segmentation of the characters from the Number Plate Of the Vehicles entering into the premises, by using the well known method of projection method and recognition of the characters is done by using the BPNN based algorithm designed for the said problem. [...]

This paper presents a very interactive, innovative and rarely used multi touch surface. The most attractive factor in this surface is that it can sense more than one contact at a time. Different techniques are being used for the construction of this IR touch surface. The technique which we have used to build multi touch is LED-LP (LED Light Plane) technique. A very useful and cost efficient technique as compared to other techniques. All the techniques are based on IR source. Calibration factor is the most important factor for sensing. The details of the implementation phase and the initial prototype [...]

Sand, an important refractory material in founding, significantly influences the properties of the mould and quality of the cast. This work investigates the qualities of sand and clay from Eagle Island (behind Rivers State University of Science and Technology, Port Harcourt, Nigeria). The physical and chemical properties of the sand were examined using sieves, mortar and piston, compaction loading machine, electron meter, ph meter, etc. The test was in accordance with American Foundry Man’s Society specification. Results show the sand and clay to be good for foundry industries. [...]

This paper investigates the influence of the design parameters of the upper ferromagnetic shunt, namely the value of the holding area H S , that creates a holding force H F , equal to that in breakaway stage in magnitude of this holding force at the breakaway stage. The design of an integrated circuit and the equivalent magnetic circuit of the integrated LEMM on breakaway stage was built, mathematical models of system were laid out. The resulting holding force will vary in range of (0.05...0.15) to (0.2...0.55). [...]

Choice of travel modes for school trip are modeled in this paper using discrete choice analysis to identify the most influential factors that induces people to use school bus. A Multinomial Logit (MNL) mode choice model was developed in this regard using Stated Preference (SP) surveys. Model was generalized using two case studies; Blue Bird School & College and Scholarshome. Both of the schools are located in Sylhet City Corporation (SCC) area, one of the major city of Bangladesh located north east part of the country. Attributes and their levels for SP survey were taken from preliminary survey conducted on [...]