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Publication Date
Sun Sep 01 2019
Journal Name
Baghdad Science Journal
Volume
16
Issue Number
3
DOI
10.21123/bsj.2019.16.3.0639
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Scopus (8)
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bsj-3945
An Analysis of a Partial Temporary Immunity SIR Epidemic Model with Nonlinear Treatment Rate
Nonlinear treatment rate
Partial temporary immunity
SIR epidemic model.
Majeed et al.
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     A partial temporary immunity SIR epidemic model involv nonlinear treatment rate is proposed and studied. The basic reproduction number  is determined. The local and global stability of all equilibria of the model are analyzed. The conditions for occurrence of local bifurcation in the proposed epidemic model are established. Finally, numerical simulation is used to confirm our obtained analytical results and specify the control set of parameters that affect the dynamics of the model.

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Publication Date
Tue Jan 18 2022
Journal Name
Materials Science Forum
The Effect of Gamma Radiation on the Manufactured HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>2.4</sub>Ag<sub>0.6</sub>O<sub>8+δ</sub> Compound
Gamma doses radiation
crystal size
strain
degree of crystallinity
Scherrer
crystallinity and Williamson equations.
zainab j
Balqees A.
Mohammed A.
Kareem A.
Auday H.
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In this article four samples of HgBa2Ca2Cu2.4Ag0.6O8+δ were prepared and irradiated with different doses of gamma radiation 6, 8 and 10 Mrad. The effects of gamma irradiation on structure of HgBa2Ca2Cu2.4Ag0.6O8+δ samples were characterized using X-ray diffraction. It was concluded that there effect on structure by gamma irradiation. Scherrer, crystallization, and Williamson equations were applied based on the X-ray diffraction diagram and for all gamma doses, to calculate crystal size, strain, and degree of crystallinity. I

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Scopus (2)
Crossref (2)
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Publication Date
Sun Oct 01 2023
Journal Name
مجلة دراسات دولية
الذكاء الاصطناعي والوجود الإنساني: قراءة فكرية في الابعاد الاجتماعية
تُعد فكرة الذكاء الاصطناعي من العلوم الحديثة
التي ارتبطت بالإنسان في العقود الخمسة الأخيرة
وأصبحت السياسة الرقمية جزءاً لا يتجزأ من المجتمع
لكونها تُستخدم في أغلب مجالات حياة الانسان. وهذا ما شجع صانعوا السياسات التكنولوجية الجديدة
في التفكير بكيفية توظيفه لخدمة مصالحهم العليا
بغض النظر عن بذل الجهود للتفكير في تنظيمه
ووضع قيود تراعي التشريعات الدينية
والقوانين
ودساتير الدول
والتقاليد والأعراف الاجتماعية. وبدأت بعض برامج الذكاء الاصطناعي تُستخدم كمنصة لمحتوى غير قانوني
وتخترق سلباً خصوصية الانسان
دون أن تحرص وتفكر الشركات في خطوات لمنع إساءة استخدام منصاتها.
ليث عصام مجيد
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Publication Date
Mon Nov 01 2010
Journal Name
Al-nahrain Journal Of Science
Chemical Elements Diffusion in the Solar Interior
The standard solar model and equation of state have been used to study relative diffusion of Hydrogen and Helium in the present time for solar interior
as a function of distance and depth from the center of the star. The effects of temperature and density on diffusion velocity for these chemical elements have been explaned. It is found that heat flow which is arising from these reactions leads to an increase in helium diffusion velocity
while the temperature and density leading to a decrease in Hydrogen diffusion velocity. This means that Hydrogen behaves inversely with that for helium does through these reactions. Accordingly
diffusion percentages for Hydrogen
Helium and other Heavy Elements could be determined for the main sequence stars and white dwarf stars.
H.
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