Investigation of Alumina Nano Fluid Thermal Conductivity

The paper studies experimentally the enhancement in thermal conductivity of Nano fluid 3 2O Al / distilled water (10 nm particle size) at four different volume fractions (0.13, 0.24, 1 and 1.7%). The Alumina powder posses the following specifications: spherical, 99% purity, white appearance, 3700 bulk density, 160m/g specific surface area, 880J/kg.K specific heat, 46W/m.K thermal conductivity. The tests performed at average temperatures (37.9 C and 44.23 C ). The effect of both temperature and Nano fluid volume fraction on its thermal conductivity is investigated. The fluid is allowed to flow in annulus cooling channel subjected to constant heat fluxes (20693W/m and 27752W/m) which corresponds to Nano fluid temperature, Tnf (37.9 C and 44.23C). Thermal conductivity of the fluid is measured using Decagon KD2-senser. The experimental results showed an enhancement in the ratio of Nano fluid thermal conductivity to distilled water thermal conductivity, bf nf k k of about (0.34.5%). The experimental results are then compared with those related to other results obtained using correlations elaborated from previous works.

A Novel Approach of Designing Cryptographic Algorithm with High Confidentiality

Today’s in modern world security is the main issue while communication. Internet is main source for communication but also it is not as much secure as it assume. For secure transmission of data many algorithms have been developed. Steganography and encryption/decryption algorithms are used for confidentiality. Some times to improve the security both the algorithms are combined. There is always a trade to develop an algorithm which provides high security in less time than the existing one. This paper proposed a new structure called HCCA (High Confidentiality Cryptography Algorithm) which is a combination of encryption/decryption and steganography algorithm. The key feature of this algorithm is that it is highly secure, time efficient and required small cover file.

Neural Network based Face Recognition System using Discrete Cosine Transform and Principal Component Analysis

Forward Engineering based Implementation of TOS in Social Networking

Optimal QoS based Web Service Choreography using Ant Colony Optimization

Survey of Number Plate Recognition for Use in Different Countries using an Improved Segmentation

Analysis of Cognitive Radio Spectrum Sensing Techniques

In wireless communication, signal in its propagation path always gets affected by noise signal. The radio link between transmitter and receiver varies randomly during signal propagation. This radio link may offer simple line-of-sight or multipath propagation of communication signal depending on channel condition and channel type. Sensing performance of cognitive radio network may also gets affected over various channels and requires to be calculated. This paper enlightens the implementation and analysis through simulation of Matched filtering, Energy detection and Cyclostationary feature detection cognitive radio spectrum sensing techniques over AWGN, Rician and Rayleigh fading channels. It also contains combined analysis of the three techniques in terms of the SNR vs decision accuracy plots over AWGN, Rician fading and Rayleigh fading channels.

Generate Optimized GUI Test Sequence using GA and Fuzzy Logic

Localizing Optic Disk using LBP, SIFT and ICA

Implementation of Model-View-Controller Architecture Pattern for Business Intelligence Architecture

This paper presents a new approach to develop the strategy of Model–View–Controller architecture pattern in Business Intelligence (BI) architecture. The Business Intelligence architecture consists of the ETL tools and processes, the data warehouse, the technical infrastructure, and the user-interface tools. The major issue related to Business Intelligence architecture is to store the data from heterogeneous sources. The heterogeneous sources might lead to inconsistencies in storage and retrieval of data. Another issue related to Business Intelligence architecture is to provide multiple and synchronized views. The Business information must be presentable in various formats with ‘look and feel’ approach. Model-View-Controller provides independent approach to the components of Business Intelligence architecture. Model provides guideline for storing the heterogeneous data in one format and implements core functionality of the system. View provides multiple and synchronized views so that information can be available in presentable format. Controller handles user’s input. All the three independent components are tightly coupled which ensures consistent and flexible Business Intelligence architecture. General Terms Software architecture, Business Intelligence