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Volumetric chemisorption studies of reforming catalysts

Volumetric chemical adsorption was done in a volumetric apparatus using hydrogen gas at room temperature on eleven platinum catalyst, commercial catalysts (RG-412,RG-402 ,RG-432, RG-451, RG-482, and PS-10) and prepared platinum catalysts with 0.1, 0.2 , 0.45 , and 0.55% by weight of Pt supported with Y-alumina. The results show that the metal crystallite area increases with increasing platinum content. The dispersion and particle size of metal crystallite located between 48.2-96.1% and 3.85-12.72 nm, respectively. For bimetallic catalysts, the hydrogen intake decrease in the following order : Re < Sn < Ir.

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Publication Date
Mon Jul 01 2019
Journal Name
Journal Of Global Pharma Technology
Synthesis and Characterization of Some New Pyrazole Derivatives‏

This work contain many steps starting from esterification of isophthalic acid to yield diester compound [I] which was converted to their acid hydrazide [II], then the later compound reacted with ethylacetoacetate to yield pyrazol-5-one compound [III]. Afterword added acetyl chloride to give the compound [IV], the reaction of this compound with theiosemicarbazide led to produce a new carbothioamide compound [V], which was reacted with ethyl chloro acetate to yield the thioxoimidazolidin compound [VI]. The condensation reactions of this compound with different substituted aldehyde give new alkene derivatives [VII] ad. The synthesized compounds were characterized by melting points, FT-IR, 1H-NMR and Mass spectroscopy.

Publication Date
Sun Jan 30 2022
Journal Name
Iraqi Journal Of Science
Convergence of Iterative Algorithms in Cat(0) Spaces

     In this article, results have been shown via using a general quasi contraction multi-valued mapping in Cat(0) space. These results are used to prove the convergence of two iteration algorithms to a fixed point and the equivalence of convergence. We also demonstrate an appropriate conditions to ensure that one is faster than others.

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Publication Date
Mon Sep 30 2019
Journal Name
College Of Islamic Sciences
The provisions of the monkey in Islamic jurisprudence

The provisions of the monkey in Islamic jurisprudence

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Publication Date
Tue Sep 19 2017
Journal Name
Al-academy
Directed designs the covers of children's magazines methods

The design processes in general and the design system in particular need to be studied and knowledge. Based on this vision, we find the need for constant research on the design processes, and the subject of the techniques of the designs of the covers of children magazines did not have the view of the researchers to make them the subject of study, For the subject of this research, the problem of research is determined according to the following question:

- What are the methods used in designing children magazine covers in Iraq?

Through this research we seek to find solutions to this question as well as it will serve the cognitive side of a modern study and development of a broader understanding of the subject. Through four

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Publication Date
Sun Jan 03 2010
Journal Name
Journal Of The Faculty Of Medicine Baghdad
Therapeutic study of rosacea by Azithromycin and Metronidazole

Background: Rosacea is a chronic disease that requires long-term systemic and or local therapy, which carries risk for systemic complications and adverse reactions and high recurrence rate. 
Patient and methods: Two groups of rosacea patient with at least 8 inflammatory papules and pustules, moderate to severe facial erythema (22 patient treated with oral azithromycin versus 18 patient treated with oral metronidazole) were studied at single medical center (medical city of Baghdad: department of dermatology and venereology , both for 60 days, Subjects were evaluated monthly for up to three months to determine the relapse rate. Main outcome measures: Inflammatory papules and pustules were counted at ea

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Publication Date
Wed Nov 24 2021
Journal Name
Iraqi Journal Of Science
Surface Plasmon Resonance study of Ag nanoparticles colloidal

Silver nanoparticles (Ag-NPs) have been prepared using the electro-chemical
method. The experimental setup of this technique consist of two electrodes of pure
silver (99.2 %), the applied voltage on the electrodes is 20 V and the current through
the colloidal was about 0.4 Amp. The silver nanoparticles crystallization has been
studied; the crystalline structure appears Face center Cubic. The optical properties of
silver nanoparticles are strongly affected by the Local Surface Plasmon Resonance
(LSPR). The wavelength of maximum absorption band for an Ag NPs have a range
(~350nm-550nm).

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Publication Date
Sat Oct 20 2018
Journal Name
Journal Of Economics And Administrative Sciences
Measurement and analysis of financial liberalization in Iraq

Abstract :                                                                                                            

In light of the trend of the countries of t

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Publication Date
Sat Feb 02 2019
Journal Name
Journal Of The College Of Education For Women
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Publication Date
Thu Dec 23 2021
Journal Name
Iraqi Journal Of Science
Effect Of Nd:YAG Laser On Ants (Camponotus consobrinus)

     The subject of biophysics is interdisciplinary and covers various fields of biology and physics. In this research the effect of some parameters of Nd:YAG laser on ants (Camponotus consobrinus) has been studied    . This includes the effect on its external shape, as well as the percentage of the killing rate obtained. A laser radiation  of  a wavelength (1.064 µm) with different  energies: (300, 320, 340, 360, 380 and 480 mJ) was used to irradiate ants  placed at a distance  of (10 cm) distance  from the laser source . The irradiation times were (15 and 20 sec) for each energy. The obtained results showed an increase in the rate of ant  mortality, as well

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Publication Date
Fri Jun 30 2023
Journal Name
Iraqi Journal Of Science
Statistical Analysis of COVID-19 Data in Iraq

The analysis of COVID-19 data in Iraq is carried out. Data includes daily cases and deaths since the outbreak of the pandemic in Iraq on February 2020 until the 28th of June 2022. This is done by fitting some distributions to the data in order to find out the most appropriate distribution fit to both daily cases and deaths due to the COVID-19 pandemic. The statistical analysis includes estimation of the parameters, the goodness of fit tests and illustrative probability plots. It was found that the generalized extreme value and the generalized Pareto distributions may provide a good fit for the data for both daily cases and deaths. However, they were rejected by the goodness of fit test statistics due to the high variability of the data.<

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