Preferred Language
Articles
/
bsj-6046
Synthesis and Characterization of New nano catalyst Mo-Ni /TiO2- γAl2O3 for Hydrodesulphurization of Iraqi Gas Oil
...Show More Authors

   A new nano-sized NiMo/TiO2-γ-Al2O3 was prepared as a Hydrodesulphurization catalyst for Iraqi gas oil with sulfur content of 8980 ppm, supplied from Al-Dura Refinery. Sol-gel method was used to prepare TiO2- γ-Al2O3 nano catalyst support with 64% TiO2, 32% Al2O3, Ni-Mo/TiO-γ-Al2O3 catalyst was prepared under vacuum impregnation conditions to loading metals with percentage 3.8 wt.% and 14 wt.% for nickel and molybdenum respectively while the percentage for alumina, and titanium became 21.7, and 58.61 respectively. The synthesized TiO2- γ-Al2O3 nanocomposites and Ni-Mo /TiO2- γ-Al2O3 Nano catalyst were then characterized by XRD, AFM, and BET surface area, SEM, XRF, and FTIR. The performance of the synthesized catalyst for removing sulfur compounds was conducted through the pilot HDS laboratory unit, various temperatures range 275oC to 375°C, LHSV 1 h-1 were studied; moreover, the effect of LHSV 1 to 4 h-1 on the percentage of sulfur removal was also studied at the temperature of the best removal with constant pressure 35 bar and H2/HC ratio 200cm3/200cm3. The sulfur content results generally revealed that there was a substantial decrease at all operating conditions used, while the maximum sulfur removal was 87.75% in gas oil on Ni-Mo/TiO2-γ-Al2O3 catalyst at temperature 375˚C and LHSV 1h-1.

Scopus Clarivate Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Fri Sep 21 2018
Journal Name
Materials Research Express
Geometries, electronic properties and stability of molybdenum and tungsten nitrides low-index surfaces
...Show More Authors

Motivated by the vital role played by transition metal nitride (TMN) composites in various industrial applications, the current study reports electronic properties, thermodynamic stability phase diagram, and vacancy formation energies of the plausible surfaces of NiAs and WC-type structures of δ3-MoN and δ-WN hexagonal phases, respectively. Low miller indices of various surface terminations of δ3-MoN and δ-WN namely, (100), (110), (111), and (001) have been considered. Initial cleaving of δ3-MoN bulk unit cell offers separate Mo and N terminations signified as δ3-MoN (100): Mo, δ3-MoN(100):N, δ3-MoN(111):Mo, δ3-MoN(111):Mo, and δ3-MoN(001):Mo. However, the (110) plane reveals mix-truncated with both molybdenum and nitrogen atoms i

... Show More
View Publication
Scopus (14)
Crossref (12)
Scopus Clarivate Crossref
Publication Date
Sat Oct 31 2020
Journal Name
The Egyptian Journal Of Otolaryngology
Incidence and recovery of smell and taste dysfunction in COVID-19 positive patients
...Show More Authors
Abstract<sec> <title>Background

This study aims to find the chemosensitive dysfunction incidence in COVID-19-positive patients and its recovery.

We collected the data from sixty-five patients, all COVID-19 positive, quarantined in-hospital between 5 April 2020 and 17 May 2020, by a questionnaire distributed in the quarantine ward.

Results

Smell dysfunction appeared in 89.23% with or without other symptoms of COVID-19. 39.66% of them recovered the sense of smell. Taste dysfunction found in 83.08% patients with other COVID-19 symptoms. Only 29.63% of them recovered. The recovery took 1–3 weeks, and most

... Show More
View Publication
Scopus (14)
Crossref (11)
Scopus Clarivate Crossref
Publication Date
Fri Mar 01 2024
Journal Name
Al-khwarizmi Engineering Journal
Quantitative Analysis of Isometric Ankle Torque and Muscle Activity during Dorsiflexion and Plantarflexion
...Show More Authors

  Foot and ankle movements are essential in various activities like walking, running, and balance, where the mechanics of these movements are affected by the muscles around the ankle joint [1,2]. In this study, the correlations between isometric ankle torque and muscle activity of the tibialis anterior (TA) and gastrocnemius (GAS) in the course of dorsiflexion and plantarflexion was investigated. Eight healthy participants were enrolled for the study, where the ankle torque and surface Electromyography (sEMG) of the main flexors were measured and analyzed. The results showed that ankle torque is higher in plantarflexion than dorsiflexion. In addition, the TA has greater muscle activity during dorsiflexion, while the GAS presents higher ac

... Show More
View Publication
Scopus (1)
Crossref (1)
Scopus Crossref
Publication Date
Fri Jun 29 2018
Journal Name
Journal Of Engineering
Experimental Study and Analysis on Degradation of Oily Sludge from Process Equipment by Continuous Hybrid Treatment
...Show More Authors

It is well known that petroleum refineries are considered the largest generator of oily sludge which may cause serious threats to the environment if disposed of without treatment. Throughout the present research, it can be said that a hybrid process including ultrasonic treatment coupled with froth floatation has been shown as a green efficient treatment of oily sludge waste from the bottom of crude oil tanks in Al-Daura refinery and able to get high yield of base oil recovery which is 65% at the optimum operating conditions (treatment time = 30 min, ultrasonic wave amplitude = 60 micron, and (solvent: oily sludge) ratio = 4). Experimental results showed that 83% of the solvent used was recovered meanwhile the main water

... Show More
View Publication Preview PDF
Crossref (1)
Crossref
Publication Date
Thu Sep 18 2025
Journal Name
Journal Of Baghdad College Of Dentistry
The Effect of LED Light on Depth of Cure and Microhardness of Three Types of Bulkfill Composite
...Show More Authors

Background: To evaluate the ISO depth of cure of bulkfill composites and depth of cure which determined by Vickers microhardness test. Materials and Methods: Bulkfill resin composite specimens (n=150) were prepared of three bulkfill composite materials (TetricEvo Ceram, Quixfil and SDR) and light cured by Flash max p3 for 3, 10, 20 seconds and by wood pecker for 10, 20 seconds respectively, a mold was filled with one of the three bulkfill composites and light cured. The specimens removed from the mold and scraped by plastic spatula and the remaining length (absolute length) was measured which represent the ISO depth of cure. After that the specimens were returned into the mold and a microhardness indentation device applied on the specimen

... Show More
View Publication Preview PDF
Crossref
Publication Date
Fri Jan 01 2016
Journal Name
Ibn Al-haitham Journal For Pure And Applied Science
تحضير ودراسة طيفية وأمتزاز معقد الكوبالت (II(Co لليكاند enaminone -β المشتق من السلفاميثوكسازول
...Show More Authors

يهتم هذا البحث بتحضير وتشخيص ليكاند ثنائي السن -: [4-(5,5-dimethyl-3-oxocyclohex-1-enylamino)-N-(5-methylisoxazol-3-yl)benzene sulfonamide] [H2L] وذلك من صهر السلفاميثوكسازول مع الدايميدون بدرجة ºC)140 (ُ ولمدة نصف ساعة , حظر معقد الكوبالت مѧن تفاعѧل هѧذا الليكاند مع ايون الكوبالѧت الثنѧائي وبطريقѧة التصѧعيد الا ُ رجѧاعي باسѧتعمال الايثѧانول وسѧطا للتفاعѧل . شѧخص الليكانѧد والمعقѧد المحضر باستعمال الطرائق الطيفية التي اثبتت ان المعقد ذات شكل هندسѧي ر

... Show More
Publication Date
Sun Jul 01 2012
Journal Name
Journal Of Educational And Psychological Researches
المحددات الاجتماعية لمهنــة المرأة دراسة ميدانية من وجهة نظر أساتذة جامعة بغداد مجمع الجادريـــة
...Show More Authors

The conventional view to women is still in society due to the male domination on society and the social values. Since women and the costumes and women. Since women is not half the society, but half of its potential energy that is capable of working. Giving her the chance to work according to her efficiency and ability and academic achievement is a justice in the distribution of professions between the sexes without discrimination. Women bear the responsibility of correcting the view created by men.

The importance of this study comes from knowing the most important social limitations of women work in society which effect on many aspects in her life like choosing a career suiting hers and the range of women working in the universit

... Show More
View Publication Preview PDF
Publication Date
Sun Jan 04 2015
Journal Name
Journal Of Educational And Psychological Researches
مهمات مديري المدارس في ضوء نظام المدارس الثانوية في العراق من وجهة نظر المدرسين
...Show More Authors

The current research aims know:

1.-level application managers secondary schools and junior high for the tasks set by the high school system in Iraq, from the standpoint of teachers.

  1. statistically significant differences in the extent of the application of secondary school principals and junior high for the tasks set by the high school system from the viewpoint of teachers depending on the variable (sex, specialty, number of years of service).

The researcher used the descriptive analytical method being considered best suited to such studies, for the purpose of achieving the goals of research, the researcher using the questionnai

... Show More
View Publication Preview PDF
Publication Date
Sun Mar 26 2023
Journal Name
Arab Science Heritage Journal
غسل الحيض من خلال كتاب شرح ابن كمال باشا على أول الهداية ( دراسة وتحقيق )
...Show More Authors

This study deals with the field of acieving the manuscripts of Islamic sciences by the great Imam ibn Kamal Pasha, but the mentioned book requires a great effort to explain what it contains of sciences, and to appear what it has contained

View Publication Preview PDF
Publication Date
Wed Mar 30 2022
Journal Name
حوليات أداب عين شمس
الاعلال في الجزء الثلاثين من القرآن الكريم في كتاب الجدول في إعراب القرآن الكريم
...Show More Authors

View Publication Preview PDF