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All published articles 983

Irradiation Enhancement of Electrical Properties of Passive Impurities in Silicon Crystals

H. N. Yeritsyan, A. A. Sahakyan, V. V. Harutyunyan, N. E. Grigoryan & V. A. Sahakyan · Physical Science International Journal · 2014

Radiation defect formation processes in silicon crystals for the cases when concentrations of electrical non-active impurities (oxygen, carbon) prevail over main impurities determining silicon conductivity, are being covered in this paper. The role of interstitial atoms and vacan...

Open access Research Article 10.9734/PSIJ/2014/11458

Investigation of the Absorption Lines of a Kr - Ne - Mixture as Wavelength Standards for Optical Communication Systems in the Range of 1270 nm - 1640 nm

M. Schröder & U. H. P. Fischer · Physical Science International Journal · 2014

Optical communication systems are since the last 25 years the backbone of all international data and telecom communications. Up to now, more than 10 TBit/s can be distributed via one optical fiber in long-haul systems. This was realized by the use of highly parallel multi-channel...

Open access Research Article 10.9734/PSIJ/2014/10978

A Review of the Construction of Particular Measures

Yao Elikem Ayekple, William Obeng-Denteh & Joshua Amevialor · Physical Science International Journal · 2014

The first measure one usually comes into contact with in undergraduate mathematical studies is the Lebesgue measure and seeing how it is applied to the Lebesgue integral to extend considerably the Riemann integral, it doesn’t take very much else to arouse one’s interest in the st...

Open access Research Article 10.9734/PSIJ/2014/10668

Urban Sprawl Analysis and Transportation Using Cellular Automata and Markov Chain

J. O. Olusina, E. O. Abiodun & J. I. Oseke · Physical Science International Journal · 2014

The uncontrolled urban spread (urban sprawl) has both positive and negative implications. The adverse effects are more pronounced than its gains. Among others adverse effects is infrastructure provision (such as roads, etc.) which usually becomes a problem. This work examines the...

Open access Research Article 10.9734/PSIJ/2014/9211

Electro-gravitational Technology via Chronon Field

Eytan H. Suchard · Physical Science International Journal · 2014

Aim: To develop a model of matter that will account for electro-gravity. Matter is characterized by force fields and in non-inertial and non-geodesic motion as a result of interactions. The measurement of how non geodesic a test particle is can be done by non-geodesic acceleratio...

Open access Research Article 10.9734/PSIJ/2014/11129

Multidimensional Treatment of the Expanding Universe

I. A. Urusovskii · Physical Science International Journal · 2014

The simplest six-dimensional treatment of the expanding Universe in the form a three-dimensional sphere appeared as a result of the intersection of three simplest geometrical objects of finite sizes in the six-dimensional Euclidean space – of three uniformly expanding five-dimens...

Open access Research Article 10.9734/PSIJ/2014/10270

D-optimal Exact Design: Weighted Variance Approach and a Continuous Search Technique

Otaru O. Paul & Enegesele Dennis · Physical Science International Journal · 2014

In design of experiment, researchers have formulated various methods for obtaining D-optimal design. The aim of this study therefore is to obtain an N-point exact D-optimal design for a feasibleregion defined on a polynomial model. The weighted variance approach and a continuous...

Open access Research Article 10.9734/PSIJ/2014/9141

Analytical Investigation of Electrons Capture Time Effect on the Threshold Current Density Reduction in QD Spin-Lasers

S. N. Hosseinimotlagh, H. Ghavidelfard & A. Shakeri · Physical Science International Journal · 2014

In this paper, we solve numerically the rate equations governing the  semiconductor spin with un-polarized and polarized laser field based on quantum dot active region in which Schottky tunnel barrier treats as the spin injector. We demonstrate simultaneously the effects of elect...

Open access Research Article 10.9734/PSIJ/2014/9676

Effect of Annealing Process on Porous Aluminium Filled with Graphite

Amel Lafi Al-Otaibi, Muneera Abdullah Al-messiere & Taher Ghrib · Physical Science International Journal · 2014

Thermal properties of porous thin films formed by anodization of thin aluminum films in sulfuric acid. The obtained pores at the surface are filled by sprayed graphite which the role is to improving its optical and thermal absorption giving a structure of an assembly of three dif...

Open access Research Article 10.9734/PSIJ/2014/9648

Entropy and Temperature from Entangled Space and Time

Young S. Kim & Marilyn E. Noz · Physical Science International Journal · 2014

Two coupled oscillators provide a mathematical instrument for solving many problems in modern physics, including squeezed states of light and Lorentz transformations of quantum bound states. The concept of entanglement can also be studied within this mathematical framework. For t...

Open access Research Article 10.9734/PSIJ/2014/10336