Physical and chemical adsorption analyses were carried out by nitrogen gas using ASTM apparatus at 77 K
and hydrogen gas using volumetric apparatus at room temperature respectively. These analyses were used for
determination the effect of coke deposition and poisoning metal on surface area, pore size distribution and
metal surface area of fresh and spent hydrodesulphurization catalyst Co-Mo\Al2O3 .
Samples of catalyst (fresh and spent) used in this study are taken from AL-Dura refinery.
The results of physical adsorption shows that surface area of spent catalyst reduced to third compare with
fresh catalyst and these catalysts exhibit behavior of type four according to BET classification ,so, the pores
of these sample

The Esterification kinetics of acetic acid with ethanol in the presence of sulfuric acid as a homogenous catalyst was studied with isothermal batch experiments at 50-60°C and at a different molar ratio of ethanol to acetic acid [EtOH/Ac]. Investigation of kinetics of the reaction indicated that the low of [EtOH/Ac] molar ratio is favored for esterification reaction, this is due to the reaction is catalyzed by acid. The maximum conversion, approximately 80% was obtained at 60°C for molar ratio of 10 EtOH/Ac. It was found that increasing temperature of the reaction, increases the rate constant and conversion at a certain mole ratio, that is due to the esterification is exothermic. Activity coefficients were calculated using UNIFAC progra

The ultimate goal of any sale contract is to maximize the combined returns of the parties, knowing that these returns are not realized (in long-term contracts) except in the final stages of the contract. Therefore, this requires the parties to the contract to leave some elements open, including the price, because the adoption of a fixed price and inflexible will not be appropriate to meet their desires when contracting, especially with ignorance of matters beyond their will and may affect the market conditions, and the possibility of modifying the fixed price through The elimination is very limited, especially when the parties to the contract are equally in terms of economic strength. Hence, in order to respond to market uncertainties, the

The most influential theory of ‘Politeness’ was formulated in 1978 and revised in 1987 by Brown and Levinson. ‘Politeness’, which represents the interlocutors’ desire to be pleasant to each other through a positive manner of addressing, was claimed to be a universal phenomenon. The gist of the theory is the intention to mitigate ‘Face’ threats carried by certain ‘Face’ threatening acts towards others.

            ‘Politeness Theory’ is based on the concept that interlocutors have ‘Face’ (i.e., self and public – image) which they consciously project, try to protect and to preserve. The theory holds that various politeness strategies are used to prot

This research paper aims to unveil a fertile and vivid aspect, which is one of the many aspects of the multiple linguistic concern of the deceased professor Ahmed Matloob, mercy be upon him; that is the terminological study aspect. For in spite of the abundance of literature written about various directions of  his rhetorical, literary, critical, and linguistic activities, and in spite of the illumination, variation, and abundance of his terminological study, I could not find a research study that includes or investigates all his theoretical and applied efforts in this field. Therefore, I decided to achieve this task, first for the sake of knowledge, and second to return back to the deceased s

The research aimed to identify the effects of the modern of technology on translating the media term from English language to Arabic. and try to identify the use of the impact of foreign media terminologies on the Arabic media term, and to know the effect of the translation process on Arabic media terminologies.

This research is considered an analytical study by using survey study for 111 items and the results for the study as following:

1.High percentage of the (use of foreign terms work to low the level of production) was (68.13%) and average 3.55

2.The percentage of (The multiplicity of translation of the foreign term into Arabic effects on the opinions and cognitive ideas of the Arab researcher and affects the

Physical and chemical adsorption analyses were carried out by nitrogen gas using ASTM apparatus at 77 K and hydrogen gas using volumetric apparatus at room temperature, respectively. These analyses were used to determine the effect of coke deposition and poisoning metal on surface area, pore size distribution, and metal surface area of fresh and spent hydrodesulphurization catalyst Co-Mo\Al2O3 . Samples of catalyst (fresh and spent) used in this study are taken from AL-Dura refinery. The results of physical adsorption shows that surface area of spent catalyst reduced to third compare with fresh catalyst and these catalysts exhibit behavior of type four according to BET classification ,so, the pores of these samples are cylindrical, an

Humility is assign of the Purity of the soul and safety of the heart from the disease of pride and arrogance. It represents an important side of the formation of man's character and his behavior since it calls for love, intimacy and connection and a means to free the heart from the chains of envy and grudge. The word Humility (humbleness) appeared in the holy bible in many places. A accordingly, Christianity urged for sticking to it by its followers. The study aims at showing the meaning of humbleness, its importance and example of the humbleness of Jesus Christ (Peace be upon him) under the title (humbleness in Christianity/A Descriptions study). The paper falls into an introduction and three sections. The introduction talks about the mean

In the name of God the Merciful
After .....
This is discussed in the hadeeth of Shaaban's speech, in which there is much talk in modern terms about the ruling
It has to be corrected, improved, weakened or denied, and it has a title (modern)
Shaaban's sermon is a modern study). It is an attempt to judge me after I come
In the text and then came out of the books and works that mentioned the sermon in its verses and then a statement of the ruling
And then I studied the rules and ruled them according to the rules
Followed by the scientists wound and amendment, and then the conclusion and deposited the most important results that came out
He accepts this purely for his generous consideration of this humble research, an

The energy level scheme of ¹⁸⁸Os has been established on the basis of
y-y coincidence measurements. Ge (Li) and HPGe detectors were
employed to study the gamma spectra produced in the -decay of ¹⁸⁸Re to
¹⁸⁸Os. Fourteen new transitions and four new levels at 1660, 1871, 1948
188and 2034 keV are suggested. Relative intensities from singles
measurements, branching ratios  and loft values were calculated and
multipolarities, spins and parities deduced