Thesis

DESIGN OF PHOTONIC CRYSTAL FIBER SENSOR

The present work aims to employ the photonic crystal fiber (PCF) for designing temperature and electric field sensors with intended manufacturing characteristics including: high sensitivity, repeatability and low cost by infiltrated with Nematic N-(4`-ethoxybenzylidene)-4-n-butylaniline liquid crystal(EBBA) liquid crystal. The novelty in this work is the use of EBBA that characterized by its ability to align by an external electric field.

إنجليزية

Surface Modification of Titanium and Titanium Alloy Using Ceramic Biomaterials by RF Sputtering

The current in this thesis research deals with the plasma sputtering which was used to deposit single and triple layers ceramics on (cpTi) and ( Ti-6Al-4V) alloy. Also ,in this work the in vitro electrochemical tests  , formation of HAp by biomimetic process on the coated layers by the immersion in Simulated Body Fluid(SBF) at PH equal to 7.4 and room temperature was done . The single layer TiO 2and HAp , multi-layer consist of TiO2 and Al were deposited on cpTi and Ti-6Al-4Valloy, followed by the deposition of  third layer of HAp.

إنجليزية

Supervised and Unsupervised Classification Performance Satellite Images

One of the main purposes of remote sensing satellite images is to interpret the observed data and classify features. Satellite image classification plays a major role in the extraction and interpretation of valuable information from massive satellite images.The primary purpose of this research is to classify multi-spectral Thematic Mapper satellite images using supervised classification. Unsupervised (RGB color model) and supervised classification (maximum likelihood method) is adopted to achieve the classification purpose.

إنجليزية

Evaluation of the Intermediate Layer of Graphite Bonded Metal

           This work investigates the joining between graphite and stainless steel grade (410), by using active filler metal paste. Brazing technique was chosen because it is efficient, verstile, fast and economical.High purity of metal powder of  silver, copper  and titanium in different concentrations were mixed carefully to prepare a filler paste.

إنجليزية

Relativistic Hartree-Fock Computations of Group15 Atoms and Some Diatomic Molecules

Atoms and molecules are the fundamental constituents of materials and they are the main key that can open the door to understand the materials’ structures and dynamics. The goal of a computational atomic and molecular physics is to determine numerical solutions of approximate equations. All measurable properties of the atoms and molecules can be obtained by these solutions.In the present work, accurate treatments for both non-relativistic quantum mechanics and relativistic quantum mechanics have been presented.

إنجليزية

The Effects of Electrodes Separation and Target Material by DC Discharge Magnetron Sputtering

     In this work,  a DC planner  magnetron  sputtering  system used.  Which  consists  of  a cylindrical  chamber, made from (Borosilicate). It contains two circular  electrodes  made  from  stainless  steel. The  cathode  electrode  is  carried  the  target  material  and  permanent  magnet  while a glass  sample, which  must coat, is  placed  on  the  anode  electrode.  In  this  works,  gold  and  silver used as a target  materials.

إنجليزية

Study of Spectroscopic Properties in Isotopic Chain of Hf and W Nuclei Using IBM and IBFM.

          The interacting boson model (IBM) has been used to make a schematic study of (172-180Hf and 180-190W) isotopes. For each isotope of Hafnium and Tungsten determined the values of the parameters in the Hamiltonian of IBM-1 and IBM-2, which satisfied the best fit to the experimental data for energy levels. Beside on these values, can extrapolate to isotopes are extrapolated for which no experimental data founded and can make predictions for future experiments.

إنجليزية

Restoration of Digital Images Using an Iterative Tikhonov-Miller Filter

Digital images are applied in various fields such us:  physics, computer, engineering, chemistry, biology and medication sciences. It have been known that any images acquired by optical or electronic means is likely to be degraded by the sensing environment. Image restoration, is one  of digital image processing field, which is care about improving the degraded image. Image restoration may be linear or non-linear and blind or non-blind.

إنجليزية

Structure Evolution in the even-even Ba nuclei with IBM

 The nuclear structure  and electromagnetic transitions of even–even neutronrich 120–148Ba isotopes was studied in the framework of the collective models Interacting Boson Model (IBM-1 and IBM-2) and Dynamic Deformation Model (DDM). The reduced transition probabilities B(E2), B(M1), monopole matrix element )0(E , mixing ratio )1/2( ME  and )2/0( EEX  of these isotopes was calculated. A set of parameters was used in the calculation to approach the values with the measured data.

إنجليزية

Digital Processing and Analysis for the Tracks Produced From the Irradiation with Neutrons Source 241 Am- 9 Be on Some of Solid State Nuclear Track Detectors

   Image processing technique was used  in a lot of studies and research and it concluded , including a number of mathematical relations . In this study  , two programs were used , the first one; MATLAB

إنجليزية