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Fluid Dynamics & Materials Processing 2024年第2期20卷 257-274页

作者： Parakapali Roja shaik mohammed ibrahim Thummala Sankar Reddy Giulio Lorenzini Department of Mathematics Annamacharya Institute of Technology and SciencesKadapa516126India Department of Engineering Mathematics College of EngineeringKoneru Lakshmaiah Education FoundationVaddeswaram522302India Department of Mathematics Annamacharya Institute of Technology and SciencesKadapa516003India Department of Engineering and Architecture University of ParmaParma43124Italy

This study examines the behavior of a micropolar nanoﬂuidﬂowing over a sheet in the presence of a transverse magneticﬁeld and thermal *** addition,chemical(ﬁrst-order homogeneous)reactions are taken into account.A similarity transformation is used to reduce the system of governing coupled non-linear partial differ-ential equations(PDEs),which account for the transport of mass,momentum,angular momentum,energy and species,to a set of non-linear ordinary differential equations(ODEs).The Runge-Kutta method along with shoot-ing method is used to solve *** impact of several parameters is *** is shown that the micro-rota-tional velocity of theﬂuid rises with the micropolar ***,the radiation parameter can have a remarkable inﬂuence on theﬂow and temperature proﬁles and on the angular momentum distribution.

关键词： Chemical(ﬁrst order homogeneous)reaction magnetohydrodynamics micropolar nanoﬂuid stretching/shrinking sheet heat source

Recent advances on flexible electrodes for Na-ion batteries and Li–S batteries

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Journal of Energy Chemistry 2019年第5期28卷 15-44页

作者： mohammed-ibrahim Jamesh Department of Physics and Materials Science City University of Hong Kong Applied and Plasma Physics School of Physics (A28) University of Sydney CSIR-Central Electrochemical Research Institute-Chennai Unit CSIR Madras Complex

Flexible energy storage devices are essential for emerging flexible electronics. The existing state-of-the-art Li-ion batteries are slowly reaching their limitation in terms of cost and energy density. Hence, flexible Na-ion batteries (SIBs) with abundanee Na resources and Li-S batteries with high energy density become the alternative for the Li-ion batteries in future. This review summarizes the recent advances in the development of flexible electrode materials for SIBs with metallic matrix and carb on aceous matrix such as carb on nano-tubes, carbon nano-fiber, graphene, carbon cloth, carbon fiber cloth, and cotton textiles. Then, the potential prototype flexible full SIBs are discussed. Further, the recent progress in the development of flexible electrode materials for Li-S batteries based on carb on nano-fiber, carb on nano-tubes, graphene, and cotton textiles is reviewed. Moreover, the design strategies of suitable interlayer, separator, electrolyte, and electrodes to prevent the dissolution and shuttle effect of polysulfides in flexible Li-S batteries are provided. Finally some prospective investigation trends towards future research of flexible SIBs and Li-S batteries are also proposed and discussed. The scientific and engineering knowledge gained on flexible SIBs and Li-S batteries provides conceivable development for practical application in near future.

关键词： Na-ion batteries Lithium-sulfur batteries Flexible Free-standing High performance energy storage Long cycle life

Tuning the electronic structure of the earth-abundant electrocatalysts for oxygen evolution reaction(OER)to achieve efficient alkaline water splitting-A review

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Journal of Energy Chemistry 2021年第5期30卷 299-342页

作者： mohammed-ibrahim Jamesh Moussab Harb Department of Physics and Materials Science City University of Hong KongTat Chee AvenueKowloonHong KongChina Applied and Plasma Physics School of Physics(A28)University of SydneySydneyNSW 2006Australia KAUST Catalysis Center(KCC) Physical Sciences and Engineering Division(PSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia

Tuning the electronic structure of the electrocatalysts for oxygen evolution reaction(OER)is a promising way to achieve efficient alkaline water splitting for clean energy production(H2).At first,this paper introduces the significance of the tuning of electronic structure,where modifying the electronic structure of the electrocatalysts could generate active sites having optimal adsorption energy with OER intermediates,and that could diminish the energy barrier for OER,and that could improve the activity for ***,this paper reviews the tuning of electronic structure along with catalytic performances,synthetic methodologies,chemical properties,and DFT calculations on various nanostructured earth-abundant electrocatalysts for OER in alkaline ***,this review discusses the tuning of the electronic structure of the several nanostructured earth-abundant electrocatalysts including oxide,(oxy)hydroxide,layered double hydroxide,alloy,metal phosphide/phosphate,nitride,sulfide,selenide,carbon containing materials,MOF,core-shell/hetero/hollow structured materials,and materials with vacancies/defects for OER in alkaline environment(including activity:overpotential(η)of ≤200 mV at10 m A cm^(-2);stability:≥100 h;durability:≥5000 cycles).Then,this review discusses the robust stability of the electrocatalysts for OER towards practical ***,this review discusses the in situ formation of thin layer on the catalyst surface during *** addition,this review discusses the influence of the adsorption energy of the OER intermediates on OER performance of the ***,this review summarizes the various promising strategies for tuning the electronic structure of the electrocatalysts to achieve enhanced performance for OER in alkaline environment.

关键词： OER electrocatalyst Electrochemical water splitting Earth abundant electrocatalyst Hydrogen energy

Hepatoprotective evaluation of Anogeissus latifolia:In vitro and in vivo studies

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World Journal of Gastroenterology 2009年第38期15卷 4816-4822页

作者： Hulikere Ananth Pradeep Saleemullah Khan Karamkonda Ravikumar mohammed Fazil Ahmed Meesala Srinivasa Rao Mandava Kiranmai Dachani Sudhershan Reddy shaik Rasheed Ahamed mohammed ibrahim Department of Pharmacology and Biotechnology Nizam Institute of Pharmacy JSS College of Pharmacy OotyTamilnaduIndia and Manipal College of Pharmaceutical Sciences Centre for Liver Research and Diagno-stics Deccan College of Medical Sciences and Allied Hospitals

AIM： To evaluate the hepatoprotective activity of a hydroalcoholic extract of the bark of Anogeissus latifolia; in vitro in primary rat hepatocyte monolayer culture and in vivo in the liver of Wistar rats intoxicated by carbon tetrachloride （CCl4）. METHODS： In the in vitro study, a primary hepatocyte monolayer culture was treated with CCh and extract of Anogeissus latifolia. Hepatoprotective activity was demonstrated in the CCh damaged primary monolayer culture. In the in vivo study, the hepatoprotective activity of a hydroalcoholic extract ofAnogeissus latifolia was analyzed in liver injured CCh-treated rats. Biochemical parameters including serum transaminases [aspartate aminotransferase （AST） and alanine aminotransferase （ALT）] and alkaline phosphatase （ALP） in serum wereanalyzed. The biochemical findings were supplemented with histopathological examination of rat liver sections. RESULTS： In vitro： primary hepatocyte monolayer cultures were treated with CCh and extract of Anogeissus latifolia. A protective activity could be demonstrated in the CCh damaged primary monolayer cultUre. In vivo： Hydroalcoholic extract of Anogeissus latifolia （300 mg/kg） was found to have protective activity in rats with CCh-induced liver damage as judged from serum marker enzyme activity. CONCLUSION： The above findings lead to the conclusion that the hydroalcoholic extract of Anogeissus latifol/a is hepatoprotective. Hence, we suggest that the inclusion of this plant in the management of liver disorders is justified.

关键词： Anogeissus latifolial Hepatoprotective Carbon tetrachloride

Keladi candik(Alocasia longiloba Miq.) petiole extracts promote wound healing in a full thickness excision wound model in rats

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Asian Pacific Journal of Tropical Biomedicine 2019年第4期9卷 140-149页

作者： Nurul Hazirah Che Hamzah Arifullah mohammed KNS Sirajudeen Mohd Asnizam Asari Zulhazman Hamzah ibrahim Khalivulla shaik Faculty of Agro-Based Industry Universiti Malaysia Kelantan Department of Chemical Pathology School of Medical Sciences Universiti Sains Malaysia Department of Anatomy School of Medical Sciences Universiti Sains Malaysia Faculty of Sains Bumi Universiti Malaysia Kelantan Faculty of Pharmaceutical Sciences UCSI University

Objective: To investigate the wound-healing effect of Alocasia longiloba(A. longiloba) petiole extract on wounds in ***: Twenty-two male Sprague-dawley rats were randomly assigned to receive 10% solcoseryl gel, phosphate buffer saline, 50% ethanol, 95% ethanol and hexane extracts of A. longiloba at 1.5%, 3% and 6% doses, respectively. A full thicknesses wound(6 mm) was created on the dorsal of the rat; and all rats were applied with the extract solutions, 10% solcoseryl gel and phosphate buffer saline once a day topically until day 12. The wound was photographed on day 1, 6 and 12, and the percentage of wound contraction was calculated. On day 12, rats were sacrificed and histological examination of granulation tissue was carried out using haematoxylin & eosin and Masson's Trichrome stain to determine the wound healing ***: In this study, 6% of 50% and 95% ethanol extracts of A. longiloba showed 82.50% and 82.32% wound contraction, respectively, and were comparable with 10% solcoseryl gel(82.30%). Meanwhile, phosphate buffer saline treated group showed the lowest wound contraction(69.86%). Histological assessment of wound treated with 6% of 95% ethanol extract of A. longiloba showed distinct epidermal and dermal layer, higher proliferation of fibroblast and more angiogenesis with collagen compared to other wound treated ***: A. longiloba petiole extracts have a wound healing potential and 6% of 95% ethanol extract of A. longiloba is more effective. Further studies are required to understand the wound healing mechanism of action of the extract.

关键词： Full thickness excision wound Rat model Sprague-dawley rat Alocasia longiloba petiole extract

Isolated antibody to hepatitis B core antigen in patients with chronic hepatitis C virus infection

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World Journal of Gastroenterology 2006年第27期12卷 4406-4410页

作者： Ahmed Helmy mohammed ibrahim Al-Sebayel Department of Liver Transplantation Hepatobiliary and Pancreatic SurgeryKing Faisal Specialist Hospital & Research CenterRiyadhSaudi Arabiaand also affiliated to Faculty of MedicineAssiut University HospitalAssiutEgypt Department of Liver Transplantation Hepatobiliary and Pancreatic SurgeryKing Faisal Specialist Hospital & Research CenterRiyadhSaudi Arabia

AIM： To evaluate the prevalence of isolated anti-HBc in patients with chronic hepatitis C virus （HCV） infection, and its relation to disease severity. METHODS： We screened all patients with chronic HCV infection referred to King Faisal Specialist Hospital and Research Center for hepatitis B surface antigen （HBsAg）, antibody to hepatitis B surface antigen （anti- HBs）, and anti-HBc. One hundred and sixty nine patients who tested negative for both HBsAg and anti-HBs were included in this study. RESULTS： Pathologically, 59 had biopsy-proven cirrhosis and 110 had chronic active hepatitis （CAH）. Of these 169 patients, 85 （50.3%） tested positive for anti-HBc. Patients with CAH had significantly higher prevalence of isolated anti-HBc than patients with cirrhosis, 71 （6d.5%） and 14 （23.7%） respectively （P 〈 0.001）. Twenty-five patients were tested for HBV DNA by qualitative PCR. The test was positive in 3 of them （12%; occult HBV infection）. CONCLUSION： Isolated anti-HBc alone is common in Saudi patients with chronic HCV infection, and is significantly more common in those with CAH than those with cirrhosis. Therefore, a screening strategy that only tests for HBsAg and anti-HBs in these patients will miss a large number of individuals with isolated anti-HBc, who may be potentially infectious.

关键词： Cirrhosis Chronic hepatitis Dual infection Co-infection Hepatitis B screening Super-infection

Ultrasound-guided transrectal extended prostate biopsy:a prospective study

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Asian Journal of Andrology 2005年第2期7卷 165-169,页

作者： mohammed Ahmed Al-Ghazo ibrahim Fathi Ghalayini Ismail ibrahim Matalka Faculty of Medicine King Abdullah University HospitalJordan University of Science and Technology (JUST)Irbid 22110Jordan

Aim:To evaluate the diagnostic value of the 10 systematic transrectal ultrasound-guided (TRUS) prostate biopsy compared with the sextant biopsy technique for patients with suspected prostate ***:One hundred and fifty-two patients with suspected prostate cancer were included in the *** were entered in the study because they presented with high levels of prostate specific antigen (PSA) (over 4 ng/mL) and/or had undergone an abnormal digital rectal examination (DRE).In addition to sextant prostate biopsy cores,four more biopsies were obtained from the lateral peripheral zone with additional cores from each suspicious area revealed by transrectal ***,lateral peripheral zone and suspicious area biopsy cores were submitted separately to the patho- logical ***:Cancer detection rates were 27.6 % (42/152) and 19.7 % (30/152) for the 10-core and sextant core biopsy protocols,*** the lateral peripheral zone (PZ) to the sextant prostate biopsy showed a 28.6 % (12/42) increase in the cancer detection rate in patients with positive prostate cancer (P<0.01). The cancer detection rate in patients who presented with elevated PSA was 29.3 % (34/116).When serum PSA was 4-10 ng/mL TRUS-guided biopsy detected cancer in 20.6 %,while the detection rate was 32.4 % and 47.0 % when serum PSA was 10-20 ng/mL and above 20 ng/mL,***:The 10 systematic TRUS-guided prostate biopsy improves the detection rate of prostate cancer by 28.6 % when compared with the sextant biopsy technique alone,without increase in the *** therefore recommend the 10-core biopsy protocol to be the preferred method for early detection of prostate cancer.

关键词： ultrasonography prostate biopsy diagnosis

The k Nearest Neighbors Estimator of the M-Regression in Functional Statistics

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Computers, Materials & Continua 2020年第12期65卷 2049-2064页

作者： Ahmed Bachir ibrahim Mufrah Almanjahie mohammed Kadi Attouch Department of Mathematics College of ScienceKing Khalid UniversityAbha62529Saudi Arabia Statistical Research and Studies Support Unit King Khalid UniversityAbha62529Saudi Arabia Djillali Liabes University Sidi Belabbes22000Algeria

It is well known that the nonparametric estimation of the regression function is highly sensitive to the presence of even a small proportion of outliers in the *** solve the problem of typical observations when the covariates of the nonparametric component are functional,the robust estimates for the regression parameter and regression operator are *** main propose of the paper is to consider data-driven methods of selecting the number of neighbors in order to make the proposed processes fully *** use thek Nearest Neighbors procedure(kNN)to construct the kernel estimator of the proposed robust *** some regularity conditions,we state consistency results for kNN functional estimators,which are uniform in the number of neighbors(UINN).Furthermore,a simulation study and an empirical application to a real data analysis of octane gasoline predictions are carried out to illustrate the higher predictive performances and the usefulness of the kNN approach.

关键词： Functional data analysis quantile regression kNN method uniform nearest neighbor(UNN)consistency functional nonparametric statistics almost complete convergence rate

Implementation Study of Dynamic Load Balancing Algorithm of Parallel Tree Computation on Clusters of Heterogeneous Workstation

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Journal of Donghua University(English Edition) 2005年第2期22卷 81-86页

作者： mohammed A.M. ibrahim M.SaifMokbel Faculty of Engineering Department of Software Engineering Taiz University Republic of Yemen Taiz city P. O.Box:6038

The rapid growth of interconnected high performance workstations has produced a new computing paradigm called clustered of workstations computing. In these systems load balance problem is a serious impediment to achieve good performance. The main concern of this paper is the implementation of dynamic load balancing algorithm, asynchronous Round Robin (ARR), for balancing workload of parallel tree computation depth-first-search algorithm on Cluster of Heterogeneous Workstations (COW) Many algorithms in artificial intelligence and other areas of computer science are based on depth first search in implicitty defined trees. For these algorithms a load-balancing scheme is required, which is able to evenly distribute parts of an irregularly shaped tree over the workstations with minimal interprocessor communication and without prior knowledge of the tree’s shape. For the (ARR) algorithm only minimal interprocessor communication is needed when necessary and it runs under the MPI (Message passing interface) that allows parallel execution on heterogeneous SUN cluster of workstation platform. The program code is written in C language and executed under UNIX operating system (Solaris version).

关键词： cluster of workstations parallel tree computation dynamic load balancing performance metrics

Antimicrobial activity of Sapindus mukorossi and Rheum emodi extracts against H pylori: In vitro and in vivo studies

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World Journal of Gastroenterology 2006年第44期12卷 7136-7142页

作者： mohammed ibrahim Aleem A Khan Santosh K Tiwari mohammed Aejaz Habeeb MN Khaja CM Habibullah Centre for Liver Research and Diagnostics Deccan college of Medical Sciences and Allied Hospitals Kanchanbagh Hyderabad India

AIM： To evaluate the antibacterial activity of Sapindus mukorossi （S. mukorossl） and Rheum emodi （R. emodl）. METHODS： Powders of S. mukorossi and R. emodi were extracted successively with petroleum ether, benzene, chloroform and ethanol and were concentrated in vacuum. The disk diffusion method was used for in vitro studies and in vivo studies were performed on male Wister rats. Thirty resistant clinical isolates of H pylon, as determined by their antibiotic sensitivity patterns by E-test, along with two Gram ＋ve （S. aureus, B. subtilis） and two Gram -ve （E. coli, P. vugaris） organisms were screened for their susceptibility patterns against these extracts. RESULTS： In our screening, all 30 resistant isolates and the other four organisms （two Gram ＋ve S. aureus, B. subtilis and two Gram -ve, E. coli, P. vugaris） were sensitive to the test compounds. It was found that ethanol and chloroform extracts of S. mukorossi and ethanol and benzene extracts of R. emodi inhibited Hpylori at very low concentrations, In the in vitro study, the isolates showed a considerable zone of inhibition at very low concentrations （10 μg/mL） for both the extracts. In the in vivo study, the H pylori infection was cleared with minimal doses of extracts of S. mukorossi （2.5 mg/mL） and R. emodi （3.0 mg/mL） given orally for seven days. CONCLUSION： We can conclude from this study that the extracts of S. mukorossi and R. emodi inhibited the growth of pylori in vitro and, in in vivo studies, the H pylori infection cleared within seven days at very low concentrations. We also found that H pylori did not acquire resistance against these herbal extracts even after 10 consecutive passages.

关键词： H pylori Sapindus mukorossi Rheum emodi