ABSTRACT Power optimization is a very crucial issue in low voltage applications. This paper presents a design of D-Flip flop circuit using AVL techniques for low power operation. It reduces the value of total power dissipation of applying the adaptive voltage level at ground (AVLG) technology in which the ground potential is raised and adaptive […]

ABSTRACT The Super Crete (Icon) is one of the polymer concrete types that was developed recently in many countries and still considered as a new material especially in Egypt. It is a concrete without coarse aggregate that consists of powder material (which contains high percentage of calcium silicate) and polymer liquid. So it looks like […]

ABSTRACT In furtherance of the exploitation of the vast potentials of Hibiscus Sabdariffa and to improve the efficiency of its drink production, the analysis of heat transfer properties of Hibiscus Sabdariffa (H.S) extract using a shell and tube heat exchanger was carried out in this study. The extraction of the H.S calyces was done using […]

ABSTRACT This paper defines social engineering and explains how one can use the human mind for capturing useful information about organizations or individuals. It also provides recommendations on how to defend and protect against attackers using social engineering techniques. Social engineering is a non-technical method of intrusion hacker’s use that relies heavily on human interaction […]

ABSTRACT Multiresonator based spectral signature chipless RFID tag using a novel idea of coupled bunch resonators is presented in this paper. Increasing the surface encoding capacity is an important factor in the development of spectral signature based chipless RFID tag.  The amplitude and/or group delay of the spectral signature are utilized for the chipless tag […]

ABSTRACT In this study, preparation of fumed silica reinforced Hydroxyapatite (HAp) composites having different concentration of fumed silica from 1 to 4wt% has been prepared. XRD studies on HAp calcined at two temperatures have been done and analysed. XRD analysis indicates the structural modification with the addition of fumed silica. X ray analysis of fumed […]

ABSTRACT The reaction of triphenyltin chloride and trimethyltin chloride with the hydrazinecarboxamide and hydrazinecarbothioamide ligands of Schiff bases in 1:1 stoichiometry afford complexes having general formula [M3Sn(Ll)], [M3Sn(L2)], [M3Sn(L3)], [M3Sn(L4)], where M = triphenyl and trimethyl. New series of bio potent organotin, (IV) complexes were isolated as coloured solids soluble in most of the organic […]

ABSTRACT Proportional-Integral-Derivative (PID) controller based Load Frequency Control (LFC) proposed here for controlling the frequency deviation which is a one of major technical issue of a two area interconnected power system. In order to improvise the performance of supplying power of a power system, error function is minimized. The objective function taken into consideration over […]

ABSTRACT The main purpose of Image enhancement is to process an image to ensure that results are more desirable than the original image for a particular application. Digital image enhancement techniques offer a plethora of alternatives for improving the visual quality of the images. Suitable choice of such techniques is significantly influenced by the imaging […]

ABSTRACT Unsteady flow of an electrically conducting viscous incompressible fluid with small electrical conductivity and electromagnetic force in a horizontal channel under the influence of constant head flux is investigated. Approximate solutions for the velocity and temperature fields as well as heat transfer co-efficient have been derived. Results obtained are discussed with the help of […]