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Aqueous-Phase Sorption Behaviors of Cs+, Co2+, Sr2+and Cd2+ions on some Composite Ion Exchangers

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Advances in Chemical Engineering and Science 2012年第1期2卷 180-186页

作者： ibrahim mohammed El-Naggar Gehan mohammed ibrahim Eman Ahmed El-Kady 不详

A two new hybrid “organic-inorganic” composite ion exchangers (SAM and FAM), was synthesized by the combination of inorganic ion exchanger tin (IV) silicate and tin (IV) antimonate respectively with organic polymer polyacrylamide (PAm). The sorption isotherms for Cs+, Co2+, Sr2+ and Cd2+ ions on composite ion exchanger were investigated in the range (0.0005 - 0.01M) at different reaction temperature (30℃, 45℃ and 60℃ ± 1℃). The sorption data were subjected to different sorption isotherms and the results verified that Langmuir isotherm is the best model to be applied, and the monolayer sorption capacity were calculated and was found to increase as the reaction temperature increases.

关键词： Organic-Inorganic Composite Polyacrylamide Tin (IV) Silicate Tin (IV) Antimonate Radioactive Waste Heavy Metals Sorption Isotherm Capacity

Microscopic Anterior Callosotomy for Management of Intractable Epilepsy (Al-Azhar Experience)

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Open Journal of Modern Neurosurgery 2021年第3期11卷 180-193页

作者： Alaa Rashad ibrahim mohammed Attia Neurosurgery Department Faculty of Medicine Al-Azhar University Cairo Egypt

Background: Anterior Corpus Callosotomy is a palliative treatment for drug-resistant generalized or multifocal epilepsy patients where focus excision is not an option for management. Callosotomy prevents propagation of epileptic discharge from one cerebral hemisphere to the other. Objective: To describe Al-Azhar University Hospitals experience and clinical outcome of Anterior Corpus Callosotomy for management of drug-resistant generalized epilepsy patients as an inexpensive palliative method. Patients and Methods: In this study, there are 15 patients admitted to Neurosurgery Department in Al-Azhar University Hospitals with drug-resistant generalized epilepsy. These patients were not candidates for lesionectomy. They were managed by anterior two thirds Corpus Callosotomy between February 2017 and December 2019. They were followed at outpatient clinic for at least 14 months. Clinical outcome regarding seizure control was assessed using Engel classification. Results: All 15 patients in this study underwent anterior two thirds corpus callosotomy and followed for at least 14 months. The post-operative improvement of seizure frequency has been evaluated using Engel outcome scale with 12 patients (80%) of the patients becoming Engel class II and 3 patients (20%) becoming Engel class III. Only 3 patients (20%) had minor transient postoperative complications;one patient (6.67%) had contra-lateral lower limb heaviness Grade 4 which was transient, one patient (6.67%) had contra-lateral lower limb Jacksonian focal fits and one patient (6.67%) had behavioral changes for one month. Conclusion: Corpus callosotomy is a palliative procedure and inexpensive method for management of patients with intractable focal with generalization and generalized drug-resistant epilepsy who are not suitable for resective surgery and with good outcome.

关键词： Drug-Resistant Epilepsy Palliative Treatment Corpus Callosotomy Engel Surgery Outcome Scale

A non-conventional hybrid numerical approach with multi-dimensional random sampling for cocaine abuse in Spain

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International Journal of Biomathematics 2018年第8期11卷 289-305页

作者： Maha A. mohammed N. F. M. Noor A. I. N. ibrahim Z. Sir Department of Mathematics Ibn-Al-Haitham College of Education University of Baghdad 477146 Baghdad Iraq Institute of Mathematical Sciences Faculty of Science University of Malaya 50603 Kuala Lumpur Malaysia

This paper introduces a non-conventional approach with multi-dimensional random sampling to solve a cocaine abuse model with statistical probability. The mean Latin hypercube finite difference (MLHFD) method is proposed for the first time via hybrid integration of the classical numerical finite difference (FD) formula with Latin hypercube sampling (LHS) technique to create a random distribution for the model parameters which are dependent on time t. The LHS technique gives advantage to MLHFD method to produce fast variation of the parameters' values via number of multidimensional simulations (100, 1000 and 5000). The generated Latin hypercube sample which is random or non-deterministic in nature is further integrated with the FD method to complete one cycle of LHS-FD simulation iteration. This process is repeated until n final iterations of LHS-FD are obtained. The means of these n final solutions (MLHFD solutions) are tabulated, graphed and analyzed. The numerical simulation results of MLHFD for the SEIR model are presented side-by-side with deterministic solutions obtained from the classical FD scheme and homotopy analysis method with Pade approximation (HAM-Pade). The present MLHFD results are also compared with the previous non-deterministic statistical estimations from 1995 to 2015. Good agreement between the two is perceived with small errors. MLHFD method can be used to predict future behavior, range and prediction interval for the epidemic model solutions. The expected profiles of the cocaine abuse subpopulations are projected until the year 2045. Both the statistical estimations and the deterministic results of FD and HAM-Pade are found to be within the MLHFD prediction intervals for all the years and for all the subpopulations considered.

关键词： Epidemic model finite difference method Latin hypercube sampling ordinarydifferential equation prediction interval random distribution SEIR

Modified Harris Hawks Optimization Based Test Case Prioritization for Software Testing

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Computers, Materials & Continua 2022年第7期72卷 1951-1965页

作者： Manar Ahmed Hamza Abdelzahir Abdelmaboud Souad Larabi-Marie-Sainte Haya Mesfer Alshahrani Mesfer Al Duhayyim Hamza Awad ibrahim mohammed Rizwanullah Ishfaq Yaseen Department of Computer and Self Development Preparatory Year DeanshipPrince Sattam bin Abdulaziz UniversityAlKharj16278Saudi Arabia Department of Information Systems College of Science and ArtsKing Khalid UniversityMahayil Asir62529Saudi Arabia Department of Computer Science College of Computer and Information SciencesPrince Sultan UniversityP.O.Box No.66833Rafha StreetRiyadh11586Saudi Arabia Department of Information Systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Natural and Applied Sciences College of Community-AflajPrince Sattam bin Abdulaziz University16278Saudi Arabia College of Computer at Al-Gunfudah Umm Al-Qura UniversityAl-Gunfudah24382Saudi Arabia

Generally,software testing is considered as a proficient technique to achieve improvement in quality and reliability of the ***,the quality of test cases has a considerable influence on fault revealing capability of software testing *** Case Prioritization(TCP)remains a challenging issue since prioritizing test cases is unsatisfactory in terms of Average Percentage of Faults Detected(APFD)and time spent upon execution *** ismainly intended to design a collection of test cases that can accomplish early optimization using preferred *** studies conducted earlier focused on prioritizing the available test cases in accelerating fault detection rate during software *** this aspect,the current study designs aModified Harris Hawks Optimization based TCP(MHHO-TCP)technique for software *** aim of the proposed MHHO-TCP technique is to maximize APFD and minimize the overall execution *** addition,MHHO algorithm is designed to boost the exploration and exploitation abilities of conventional HHO *** order to validate the enhanced efficiency of MHHO-TCP technique,a wide range of simulations was conducted on different benchmark programs and the results were examined under several *** experimental outcomes highlight the improved efficiency of MHHO-TCP technique over recent approaches under different measures.

关键词： Software testing harris hawks optimization test case prioritization apfd execution time metaheuristics

A Novel Metadata Based Multi-Label Document Classification Technique

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Computer Systems Science & Engineering 2023年第8期46卷 2195-2214页

作者： Naseer Ahmed Sajid Munir Ahmad Atta-ur Rahman Gohar Zaman mohammed Salih Ahmed Nehad ibrahim mohammed Imran BAhmed Gomathi Krishnasamy Reem Alzaher Mariam Alkharraa Dania AlKhulaifi Maryam AlQahtani Asiya A.Salam Linah Saraireh mohammed Gollapalli Rashad Ahmed Barani Institute of Information Technology(BIIT) PMAS Arid Agriculture UniversityRawalpindi46000PunjabPakistan Department of Computer Science(CS) College of Computer Science and Information Technology(CCSIT)Imam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Faculty Computer Science and Information Technology Universiti Tun Hussein Onn MalaysiaBatu PahatMalaysia Department of Computer Engineering(CE) College of Computer Science and Information Technology(CCSIT)Imam Abdulrahman bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia College of Business Administration Imam Abdulrahman bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department of Computer Information System(CIS) College of Computer Science and Information Technology(CCSIT)Imam Abdulrahman bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia ICS Department King Fahd University of Petroleum and MineralsDhahran31261Saudi Arabia

From the beginning,the process of research and its publication is an ever-growing phenomenon and with the emergence of web technologies,its growth rate is *** a rough estimate,more than thirty thousand research journals have been issuing around four million papers annually on *** engines,indexing services,and digital libraries have been searching for such publications over the ***,getting the most relevant articles against the user requests is yet a *** is mainly because the articles are not appropriately indexed based on the hierarchies of granular subject *** overcome this issue,researchers are striving to investigate new techniques for the classification of the research articles especially,when the complete article text is not available(a case of nonopen access articles).The proposed study aims to investigate the multilabel classification over the available metadata in the best possible way and to assess,“to what extent metadata-based features can perform in contrast to content-based approaches.”In this regard,novel techniques for investigating multilabel classification have been proposed,developed,and evaluated on metadata such as the Title and Keywords of the *** proposed technique has been assessed for two diverse datasets,namely,from the Journal of universal computer science(***)and the benchmark dataset comprises of the articles published by the Association for computing machinery(ACM).The proposed technique yields encouraging results in contrast to the state-ofthe-art techniques in the literature.

关键词： Multilabel classification indexing metadata content/data mining

Sex Determination Using Mandibular Canine among Northeastern Nigerian Population

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Journal of Forensic Science and Medicine 2019年第3期5卷 151-155页

作者： Saleh Nuhu Babagana mohammed Dalori Lawan Hassan Adamu Isyaku ibrahim Maryam Nasir Aliyu Department of Human Anatomy Faculty of Basic Medical SciencesNorthwest UniversityKano StateNigeria Department of Human Anatomy College of Medical SciencesUniversity of MaiduguriMaiduguriBorno StateNigeria Department of Anatomy Faculty of Basic Medical SciencesBayero UniversityKano StateNigeria

Establishing a person’s identity is important for both legal and humanitarian *** determination is a key characteristic used in the identification of a deceased *** aim of this study was to determine sex by using mandibular canines among individuals in the Northeastern Nigerian *** hundred and eight individuals(102 men and 106 women)participated in this *** mesiodistal widths of the mandibular canines and intercanine distances were measured using a vernier caliper and a ***‑wise logistic regression analyses were used to determine sex based on mandibular *** participants had significantly higher mandibular mesiodistal width than female ***,the canine index was significantly higher in male participants than in female *** mesiodistal width of the left mandibular canine exhibited the highest sexual dimorphism(9.78%)and was the best characteristic for use in determining sex,with an accuracy of 75%.Among the Northwestern Nigerian population,sex can be most accurately determined using the mesiodistal width of the left mandibular canine.

关键词： Forensic sciences mandibular canine Northeastern Nigeria sex determination

Performance Evaluation of Spark Ignited Engine Fueled with Gasoline-Ethanol-Methanol Blends

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Journal of Energy and Power Engineering 2016年第6期10卷 343-351页

作者： mohammed Kamil ibrahim Thamer Nazzal Mechanical Engineering Department University of Sharjah Sharjah 27272 UAE Mechanical Engineering Department Graduate School of Engineering Ozyegin University Istanbu10090 Turkey

In this paper, experimental investigations are presented to assess the performance variations in a single cylinder spark ignited engine when run with three different gasoline-alcohol blends：（88% gasoline-12% methanol, 88% gasoline-12% ethanol and 88% gasoline-6% methanol-6% ethanol）. Additional tests are carried out with the basic gasoline fuel for comparison analysis and performance assessment. Engine performance is investigated under a variety of engine operating conditions. The results are presented in the domain of engine speed. In particular, the brake power of the engine is shown to be slightly increased. The brake thermal efficiency showed an increase compared with the basic gasoline engine. Similarly, it is shown that brake specific fuel consumption is enhanced compared with basic gasoline engine. The exhaust gas temperature showed a decrease compared with gasoline fuel which is preferable to reduce emissions. The alcohol additives are strongly recommended to enhance performance, increasing the mileage and reducing the emissions.

关键词： Gasoline performance ethanol methanol SI engine blends.

ESP Needs Analysis： A Case Study of PEH Students, University of Khartoum

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Sino-US English Teaching 2016年第12期13卷 905-923页

作者： Abuelgasim Sabah Elsaid mohammed ibrahim University of Khartoum Sudan

Needs analysis is considered a necessary first step in designing ESP courses. This study, therefore, aims at analysing students at the Faculty of Public and Environmental Health （PEH） at the University of Khartoum （U of K）, Sudan, needs for English language. The study adopted the needs analysis framework suggested by Dudley-Evans and St John （1998） focusing on target needs analysis, present situation analysis, and learning means needs analysis. The study used a questionnaire, a proficiency test, and an interview to collect data. The participants were 490 students at PEH （390 participated in the questionnaire and 100 in the proficiency test） and two professors at the Faculty. The study found that PEH students need English language for academic study. The students rated their proficiency as good, but the test revealed that they were of weak proficiency. All the four skills in addition to vocabulary, grammar, and pronunciation are regarded as important to the students. Similarly, almost all the sub-skills are found to be important. The students have a variety of leaming needs such as learning in pairs, groups, and through ICT. The study recommends that PEH students＇ proficiency should be raised and a course that meets the students＇ needs is needed.

关键词： English for Specific Purposes needs analysis present situation target situation

Comparison of transvaginal cervical length and modified Bishop's score as predictors for labor induction in nulliparous women

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Asian pacific Journal of Reproduction 2019年第1期8卷 34-38页

作者： El Mekkawi SF Hanafi S Khalaf-Allah AE ibrahim A.Abdelazim mohammed EK Department of Obstetrics and Gynecology Ain Shams UniversityCairoEgypt Department of Obstetrics and Gynecology Ahmadi HospitalKuwait Oil CompanyAhmadiKuwait Department of Obstetrics and Gynaecology Ministry of Health and PopulationCairoEgypt

Objective: To compare the transvaginal cervical length (TVCL) to the modified Bishop's score for prediction of successful labor induction in nulliparous women. Methods: A total of 210 nulliparous women who were diagnosed as premature rupture of membranes were recruited in this comparative prospective study, which was carried out in the Obstetrics and Gynecology Department of Ain Shams University, Egypt over two years for labor induction. The studied women were examined by trans-vaginal ultrasound for measurement of the cervical length (CL) and vaginally to calculate the modified Bishop's score, followed by induction of labor. Collected data were analyzed to compare the TVCL to the modified Bishop's score for prediction of successful labor induction in nulliparous women. The success of induction process was defined as vaginal birth after the induction of labor. Results: One hundred and forty-three women of studied women had CL 4;128 of them delivered vaginally (P=0.006). The CL 4 than women with Bishop's score of 曑4 (P=0.01;95% confidence interval: 1.6-4.5). Conclusions: Both TVCL and the modified Bishop's score are complementary tools in pre-induction cervical assessment before induction of labor, while the TVCL at <28 mm is significantly more specific with more positive predictive value as predictor of successful induction than the modified Bishop's score.

关键词： Cervical length Labor induction Modified Bishop's score