Misan Journal of Academic Studies

In this ork a theoretical investigation for studding the resonate tunneling in multibarrier semiconductor heterostructures(AlGaN/GaN) superlattice nanostructure has been presented. The behavior of wave function intensity has been studied for superlattice structures, by solving SchrÖdinger time independent equation using Transfer Matrix Method (TMM). TMM was used to find the eigen states. The transmission coefficient was estimated in the case of resonant tunneling of electrons through the barriers in heterostructures. From the obtained results it was found that the factors that affecting on the eigen states are barrier effective mass, barrier height and number of wells. The results of the wave function intensity obtained in the present work are compared with Ref.[1].

Abstract:Magnesium Phthalocyanine (abbreviated MgPc) like other methallophthalocyanines have limited solubility in most solvents this behaviour prevented complete spectroscopic studies. In this paper MgPc was prepared and Infra-red peaks were characterized, and MgPc has been found to be soluble in several solvent (DMF, DMSO, THE, Pyridine and Chlorobenzene). The study show that tlie position of Q-band show very small change in non aromatic solvent DMF, DMSO and THF. The blue shift was observed in aromatic solvent (chlorobenzene, this is because of the aggregation of MgPc molecules and the aggregation increase as the concentration increase. In pyridine a red shift of Q-band was observed.

In this paper, we describe several finite element methods for solving the Convection-Diffusion-Reaction problem(CDR)and study two important properties for the approximate solution, the convergent and the discrete maximum principle.
For convergence we considered two cases, semi-discrete and discrete methods, for semi-discrete, we prove that all scheme are converge withO(hr ), where h refers to the discretization parameter, 1r s 1 and s is a degree of polynomials of finite element space and for discrete we proved that all schemes converge withO (hr ). Finally, the discrete maximum principle andL- stable are proved.

This study was conducted on chicken and geese meat. Birds were purchast from local market and slaughtered, Breast and thigh were taken and minced. Burgers were made with different percentages from these parts (chicken breast 100% , chicken breast 50% and geese thigh 50% , geese thigh 100%). Salt, spices and garlic were added. The chemical, physical and panel test were done. The results showed that:
1-There was a significant differences in chemical composition in all treat ments for (water content, protein and fats). While the ash percent didn’t show such significant differences in all treatments.
2-There were a significant differences in pH values in all treatments .
There were a significant differences in panel evaluation grades (flavor, tenderness, colour and general acceptance) for all treatments, while there were no significant differences in Jnciness were noticed.

Akhaseeb reagent--This study was carried out in private orchard at Abo Basra. To investigate the causes of pollen metaxenic effects for some pollen date palm male by relationship to endogenous hormones and some physical fruit characteristics. The date palm cv. Hillawi was pollinated by tow pollen source (Hukri Adi and Ghannami Akder) , the fruit had spread by water extracted of pollen (Hukri Adi and Ghannami Akder) at concretion (2 gm/L) and NAA (25 ppm) at 30 and 45 days after pollinated. The result showed the pollen Hukri Adi was a significant effect in fruit sizes and endogenous hormone levels(IAA ,GA3.
Cytokinin) comparison with fruit result from Ghanami Akdar pollen, the treatment of NAA was a significant effect in fruit sizes and endogenous hormone levels(IAA ,GA3. Cytokinin), whereas NAA gave a lowest levels in ABA but the pollen extraction of Hukri Adi had no significant effect with fruit produced by Ghannami

The present study was carried in a private orchard in Abu-Alkhaseeb region -Basrah.To investigate certain physical and chemical during repining of seeded cultivars of date palm (Phoenix dactylifera L.) .The result indicated that the significant different in all characteristics ,the cultivar number (22) high in length , diameter of fruit and weight pulp (9.240,24.34)mm and (35.75)gm respectively ,reducing sugars and total sugars of all stages ,the cultivar(12) significant superiority in fruit size .While the cultivar(18) showed significant superiority in seed weight and total soluble solids .The cultivar(20) significant superiority in both seed size (0.893)cm3 and reducing sugars of all stages study.

Search includes Technology for the production of high-density fiber board
made of reeds which grow in the marshes of iraq which can be used in the manufacture of low cost housing unit and finding the best conditions for the manufacture of the fiber board and the required specifications. was reached methods produced industrially.
The research aims to study the effect of cement Portland and Resol-novolack polymer as material association of particles reeds on the properties of the product where it was observed that increasing the proportion of cement leads to increase the compressive strength and density and the low percentage of water absorption ,was observed the addition of polymer to cement lead to improved mechanical properties as the lead Add polymer to cement ratio lower (water \ cement) used and this in turn leads to increased density and compressive strength . It was also study the effect of the gradient of the volumetric particle reeds on the properties of panels produced the observed increase of the compressive strength and density and the low percentage of moisture absorption if used low gradient of the volumetric particle reeds .

Is a local development strategy for the province of Basra is part of the policies that have been received in the national development strategy in Iraq for years (2005-2007), and one of the substances listed in the new Iraqi constitution a paragraph "the development of regions" in order to promote the governorates destructive, as well as it was the first strategy was set by the Provincial Council and in cooperation with officials of government departments and in line with the decentralized system of management, but it is in spite of name strategy of local development, but that the concept of strategy was not specific "and clear" where even there was a compilation of a number of proposals for a number of projects without link between them, so the aim of the research is to study and evaluate the strategy for the period (2005-2007) in order to diagnose the pros and cons of enhancing diagnosis and elimination and try to make proposals on this

The Rayleigh distribution has been widely used especially in the modeling of the life time event data. It provides a statistical model which has a wide variety of application in many areas and such as accurate analysis and failure forecasts and reliability estimate. In this research we explore and compare the performance of many estimators for the parameters and for reliability function approach used are Maximum Likelihood and, Moments and Bayesian using Jeffrey Prior and Proposed from Extension of Jeffery Prior methods.
Simulation experiments are performed to compare between estimators using MSE, and all the results are explained by table.