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Full-Text Articles in Physics

Digital Computer Calculation Of Potential And Potential Gradient Around Bundled Three Phase Lines, Adel Lamei Stefanos Jan 2022

Digital Computer Calculation Of Potential And Potential Gradient Around Bundled Three Phase Lines, Adel Lamei Stefanos

Archived Theses and Dissertations

No abstract provided.


Some Optical And Electrical Properties Of Cadmium Sulfide And Lead Sulfide Thin Films Prepared By Electron Beam Deposition, Achiri Celestine Tange Dec 2021

Some Optical And Electrical Properties Of Cadmium Sulfide And Lead Sulfide Thin Films Prepared By Electron Beam Deposition, Achiri Celestine Tange

Archived Theses and Dissertations

No abstract provided.


Evidence For Quasi-Periodic Oscillations In The Recurrent Emission From Magnetars And Their Implications On The Neutron Star Properties And Equation Of State, Ahmed Monzer El Mezeini Dec 2021

Evidence For Quasi-Periodic Oscillations In The Recurrent Emission From Magnetars And Their Implications On The Neutron Star Properties And Equation Of State, Ahmed Monzer El Mezeini

Archived Theses and Dissertations

In this thesis, we present an analysis of highly magnetized neutron stars â magnetarsâ , in search for high frequency oscillations in the recurrent emission from the soft gamma repeater SGR 1806-20, and we discuss the physical interpretation of these oscillations and its implications on the neutron star properties and structure. We present evidence for Quasi-Periodic Oscillations (QPOs) in the recurrent outburst activity from the soft gamma repeater SGR 1806-20 using Rossi X-ray Timing Explorer (RXTE) observations. By searching a large sample of bursts for timing signals at the frequencies of the QPOs discovered in the 2004 December 27 giant …


Effect Of Pressure On The Electrical Transport And Structural Properties Of Ybnio3, Mostafa Gala El Dine Zeama Nov 2021

Effect Of Pressure On The Electrical Transport And Structural Properties Of Ybnio3, Mostafa Gala El Dine Zeama

Archived Theses and Dissertations

No abstract provided.


Diffraction Of X-Waves From Multiple Rectangular Slits In An Opaque Screen, Ahmed El Saeed El Halawani Feb 2009

Diffraction Of X-Waves From Multiple Rectangular Slits In An Opaque Screen, Ahmed El Saeed El Halawani

Archived Theses and Dissertations

No abstract provided.


Ab Initio Techniques For Methane, Nora Mohamed Hassan Mohamed Jun 2008

Ab Initio Techniques For Methane, Nora Mohamed Hassan Mohamed

Archived Theses and Dissertations

No abstract provided.


Pulsed Laser Deposition Of Bismuth Telluride Compounds For Human Body Energy Scavengers, Ahmed Abdel Aziz Jan 2008

Pulsed Laser Deposition Of Bismuth Telluride Compounds For Human Body Energy Scavengers, Ahmed Abdel Aziz

Archived Theses and Dissertations

No abstract provided.


Modeling And Design Of High Force Rfmems Contact Switches, Joseph Eid Estefanous Zekry Jun 2007

Modeling And Design Of High Force Rfmems Contact Switches, Joseph Eid Estefanous Zekry

Archived Theses and Dissertations

This thesis describes the modeling and design issues of high force electrostatically actuated RFMEMS contact switches. Various reliability issues and challenges are associated with the design of RFMEMS contact switches. The reliability of microcontacts is of major importance in increasing the lifetime of such devices. A semi-analytical model based on the beam deflection theory is developed to calculate the contact force delivered by parallel-plate electrostatically actuated switch structures. The model is capable of fast and accurate static solution for complicated switch structures which are normally analyzed using finite element analysis techniques. High force designs are presented together with finite element …


Investigation Of Auni5 Films Deposited By Laser Ablation For Rf Mems Switches, Noha Sameh Ahmed Farghal Feb 2007

Investigation Of Auni5 Films Deposited By Laser Ablation For Rf Mems Switches, Noha Sameh Ahmed Farghal

Archived Theses and Dissertations

No abstract provided.


An Experimental Study Of Single Mode Fiber-Optic Sensors, Joumana Mohamed Taysir El-Rifai Feb 2006

An Experimental Study Of Single Mode Fiber-Optic Sensors, Joumana Mohamed Taysir El-Rifai

Archived Theses and Dissertations

This thesis is intended to investigate and study various types of single-mode fiber optic sensors. Single-mode fibers will be first defined and understood in order to proceed. We will provide a description of their geometry, the method by which they propagate light and how they can be utilized as sensors. Attention will also be paid to the nature of the optical components used with single-mode fibers, such as: optical sensors and detectors. Since single-mode fiber sensors depend essentially on the interference and the coherence of light, they will also be discussed. Finally, three different single-mode fiber sensor setups will be …


Scattering Of Ultra Wide Band X-Wave Pulses By A Sphere, Maged Fayez Moawad Feb 2003

Scattering Of Ultra Wide Band X-Wave Pulses By A Sphere, Maged Fayez Moawad

Archived Theses and Dissertations

No abstract provided.


Suitability Of Egyptian Raw Materials For The Production Of Cement Clinker Using The Dry Process, Lamia Rifaat Ismail Dec 1981

Suitability Of Egyptian Raw Materials For The Production Of Cement Clinker Using The Dry Process, Lamia Rifaat Ismail

Archived Theses and Dissertations

No abstract provided.


Kinetics Of Oxidation Of Bismuth And Bismuth Based Alloys In Air Between 500 And 530 (Degree) K, Magda Ishak Ahmed Waly El-Guindy Jun 1978

Kinetics Of Oxidation Of Bismuth And Bismuth Based Alloys In Air Between 500 And 530 (Degree) K, Magda Ishak Ahmed Waly El-Guindy

Archived Theses and Dissertations

No abstract provided.


Some Bonding Aspects Of Cobalt Ions In Phosphate Glasses, Tewfik Boutros Absi Jan 1972

Some Bonding Aspects Of Cobalt Ions In Phosphate Glasses, Tewfik Boutros Absi

Archived Theses and Dissertations

No abstract provided.


Radiation Induced Color Centers In Potassium Silicate Glasses Containing Lead, Ibrahim Abou-Seif Henry May 1971

Radiation Induced Color Centers In Potassium Silicate Glasses Containing Lead, Ibrahim Abou-Seif Henry

Archived Theses and Dissertations

No abstract provided.


Some A. C. Properties Of Lead-Borate Glasses, Salah El-Din El-Nahwy May 1971

Some A. C. Properties Of Lead-Borate Glasses, Salah El-Din El-Nahwy

Archived Theses and Dissertations

No abstract provided.


Radiation Induced Color Centers In Alkali Silicate Glasses, Ramez Morgan Louca May 1971

Radiation Induced Color Centers In Alkali Silicate Glasses, Ramez Morgan Louca

Archived Theses and Dissertations

No abstract provided.


On The Interaction Of Aluminium And Iron Calcium Borate Glasses And Its Effect On The Properties Of Their Composites, Sherif K. Arif May 1971

On The Interaction Of Aluminium And Iron Calcium Borate Glasses And Its Effect On The Properties Of Their Composites, Sherif K. Arif

Archived Theses and Dissertations

No abstract provided.


Interplanar Force Constants Of Symmetry Planes In Close-Packed Structures, Paul G Khoury Jan 1971

Interplanar Force Constants Of Symmetry Planes In Close-Packed Structures, Paul G Khoury

Archived Theses and Dissertations

No abstract provided.


On The Physical Properties Associated With Omega Phase In Titanium-Chromium Alloys, Serag El Din El Sayed Habib Jan 1970

On The Physical Properties Associated With Omega Phase In Titanium-Chromium Alloys, Serag El Din El Sayed Habib

Archived Theses and Dissertations

No abstract provided.


L And M Auger Spectra For Silver, Samaa Naga El Ibyari May 1969

L And M Auger Spectra For Silver, Samaa Naga El Ibyari

Archived Theses and Dissertations

No abstract provided.


Analysis Of The Vibrational Modes Of The Triborate Anion, Panayiotis Th. D. Sphicas May 1969

Analysis Of The Vibrational Modes Of The Triborate Anion, Panayiotis Th. D. Sphicas

Archived Theses and Dissertations

No abstract provided.


Theoretical Investigations Of The Vibrational Spectra Of Boron Oxide Glass, Zaven K. Altounian May 1969

Theoretical Investigations Of The Vibrational Spectra Of Boron Oxide Glass, Zaven K. Altounian

Archived Theses and Dissertations

No abstract provided.


A Generalized Analytical Theory Of The Response Of The Photoconductor, M Sameh Said Nov 1968

A Generalized Analytical Theory Of The Response Of The Photoconductor, M Sameh Said

Archived Theses and Dissertations

No abstract provided.


X-Ray Irradiation Studies Of Lybian Desert Glass And Sand, Magdi M. Nasrallah Jun 1968

X-Ray Irradiation Studies Of Lybian Desert Glass And Sand, Magdi M. Nasrallah

Archived Theses and Dissertations

No abstract provided.


Properties And Structure Of Some Chalcogenide Glasses, Amin Ismail Amin Abdel-Latif Jan 1968

Properties And Structure Of Some Chalcogenide Glasses, Amin Ismail Amin Abdel-Latif

Archived Theses and Dissertations

No abstract provided.


Catalytic Decomposition Of Hydrogen Peroxide By Manganese-Doped Magnesium Hydroxide, Nabih Philobbos Kelada Jan 1968

Catalytic Decomposition Of Hydrogen Peroxide By Manganese-Doped Magnesium Hydroxide, Nabih Philobbos Kelada

Archived Theses and Dissertations

No abstract provided.


A Study Of Chromium-Doped High Lead Containing Silicate Glasses For Possible Laser Action, Mervet Maurice Saleh Jun 1967

A Study Of Chromium-Doped High Lead Containing Silicate Glasses For Possible Laser Action, Mervet Maurice Saleh

Archived Theses and Dissertations

No abstract provided.


Molecular Vibrations Of Tetrahedral Systems With Application To Fused Silica, Leila Sado Balloomal May 1967

Molecular Vibrations Of Tetrahedral Systems With Application To Fused Silica, Leila Sado Balloomal

Archived Theses and Dissertations

No abstract provided.


Conductivity And Photoconductivity Of As-S-I Glasses, Ahmed Abdel-Hamid El-Difrawi May 1967

Conductivity And Photoconductivity Of As-S-I Glasses, Ahmed Abdel-Hamid El-Difrawi

Archived Theses and Dissertations

No abstract provided.