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01. Arab Journal of Basic and Applied Sciences
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Browsing 01. Arab Journal of Basic and Applied Sciences by Issue Date

Browsing 01. Arab Journal of Basic and Applied Sciences by Issue Date

Now showing items 21-40 of 228

Designing a Heat Pipe to Improve the Exhaust Emissions from Petrol Engines

Elmabrouk, Ali. M.; Gashoot, Saleh R. (2007-01-01)

The national engineering Laboratory and the Shell research Laboratory have co-operated in applying the heat pipe to the problem of exhaust emission .from petrol engine. In this paper, a complete design of heat pipe is ...
Environmentally Friendly and Sustainable Source of Energy from Photovoltaics and Fuel Cells

Stamouli, A. Boudghene; Larbi, N.; Traversa, E. (2007-01-01)

Several definitions of sustainable development have been put forth, including the following common one: development that meets the needs of the present without compromising the ability of future generations to meet their ...
Effect of Temperature on the Solar Module Performances

Benatiallah, A.; Kadi, L.; Dakyo, B. (2007-01-01)

Photovoltaic system is established as a reliable and economical source of electricity in rural and Sahara areas, especially in developing countries where the population is dispersed, therefore requiring low energy consumption. ...
Investigation on the Removal of Chromium (III) from Tannery Wastewater by Cement Kiln Dust

Ibrahim, Hesham G. M.; Abushina, Elmakey A. (2008)

Tannery effluent is characterized not only by heavy loads an organic sludge but also with toxic heavy metals especially chromium ions. Chromium is considered an important source of contamination due to large volume of ...
New World Record for Observing New Moon in The Kingdom of Saudi Arabia

Al-Mostafa, Zaki A. (2008)

Observing the new Moon is of vital importance for Muslims, Jews and Hindus. In previous work we were able to observe the crescent at about 4th above the horizon at the time of sunset,Herein. We are reporting the success ...
Orbit Determination Method Using Thorne's Series Solution of Lambert Problem

Sharaf, M.A.; Alshaary, A. A. (2008-01-01)

In the present paper, use will be made of Thorne's series solution of Lambert problem to develop an orbit determination method valid for hyperbolic and elliptical orbits. Numerical illustrations are given.
Effect of Blade Surface R4oughness on the Wind Turbine Performance

Kullab, Abielyazied M.; Khalfalla, M. G. (2008-01-01)

Suggestions for improving the efficiency and power production of a horizontal axis, stall-regulated wind turbine is proposed in this paper. Changing the local roughness on the blade surface to improve the wind turbine ...
Investigation on the Relation Between the Isolation and Cosmic Radiation and Their effect on Global Warming

Alnaser, W. E.; Al-buflasa, H.; Isa, A. M. (2008-01-01)

The amount of heat received on 21 different cities from different countries in Northern and Southern hemisphere were analyzed and modeled .This was made by taking the annual average of temperature from 1998 to 2005 for ...
Development of a Novel Strategy to Improve the Operation of an Environmentally Friendly Energy System Based on Photovoltaics and Fuel Cells

Unknown author (2008-12-01)

In this present work, a hybrid system, particularly a photovoltaic fuel cell one, in Algeria, is studied. Thefuel cell power supply is a very attractive option to be used with an intermittent power generation source like ...
Quantification and Analysis of Domestic Water Demands and Losses inthe Algerian South

Masmoudi, R.; Kettab, A. (2008-12-01)

Demand for drinking domestic water is continuously increasing specially in urban centres which experience high demographic expansion. The decrease of water losses in water supply networks can help preserve such a rare ...
Potential of Photovoltaic Power Technology for Water Pumping in Hot Climatic Regions

Shaahid, S.M. (2008-12-01)

In the present paper, the potential of solar photovoltaic (PV) technology for water pumping in the K.S.A has been studied by analyzing long-term solar radiation data. To achieve this task, five geographically distinct sites ...
Impact of Biochemical and Calorific Contents on the Reproductive Activity of the Marine Edible Snail Turbo coronatus Gmelin 1791

Freiji, A.; Al-Sayed, H. (2008-12-01)

The edible marine snail Turbo coronatu.s from Shaikh Ebrahim Island spawns mainly in the spring, with a spawning peak in May in which all reserves studied (total proteins, carbohydrates, and total lipids) declined to a ...
Novel Acetylenic Tricyclic Derivatives with Potential Monoam.inooxidase Inhibitory Activity

Muhi-eldeen, Z.; Finjan, S.; Al-Jubori, I.; Numan, N; Al-kaissi, E. (2008-12-01)

A new series of novel N- (4-tert-amino-2-butynyl) dibenzazepine were prepared and characterized by elemental analysis and spectroscopic techniques. Their effect on pentobarbitone sleeping-time in mice was investigated. All ...
Calculation of dynamic stresses acting on wind turbine blades using finite element method

Mahri, Z.L.; Rouabah, M.S. (2008-12-01)

The aim of this work is the calculation of dynamic loads and stresses acting on wind turbine blades. Theprediction of the dynamic behaviour of the blades constitutes is one of the most important processes in the design of ...
Harmonic Oscillator In An Infinite N·Dimensional Spherical well

Al-Jaber, Sami A. (2008-12-01)

The boundary effects on a quantum system are discussed by examining an N-dimensional harmonic oscillator confined in an impenetrable sperical well. The corrections, due to the boundary and the space dimension, to the ...
Maximum Principles for Second Order Elliptic Systems

Almahameed, Mohammad (2009)

In this paper we discuss a classical maximum principle for weakly coupled second order homogeneous elliptic systems. We find a sufficient condition for the classical maximum principle which extend the result of Winter and ...
A linear weighted estimator for estimating population total or mean of the study variable

Al Mannai, Mariam; Agarwal, Satish K. (2009)

In this paper we have extended the expressions of Bias and Mean square error of the estimators of Agarwal and Al-Mannai (2008) from first order of approximation to the second order of approximation. This helps further to ...
Algorithm for quantum simulation

Sanders, Barry C. (2009)

We summarize our algorithm for simulating Hamiltonian evolution and show that the cost of the simulation, in terms of black-box calls to the Hamiltonian oracle, is nearly linear in time and the space complexity for given ...
Numerically solving the Schr?dinger Equation for SQUID rings

Everitt, Mark J. (2009)

Here we present some mathematical and computational tools for the numerical analysis of SQUID rings. Much of this text is taken from my own thesis based on work done by many others and as such this does not comprise original ...
Four-level atom via intensity dependent atom-field coupling

Zidan , Nour A. (2009)

We study the interaction of a four level-atom with a single mode in a cavity, involving intensity dependent coupling with additional a kirr-like medium. The wave function is obtained when the atom is initially in superposition ...

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