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m.ringa oleifera Lam. leaf extract m.tigates carbon tetrachloride-m.diated hepatic inflam.ation and apoptosis via targeting oxidative stress and toll-like receptor 4/nuclear factor kappa B pathway in m.ce

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Food Science and Hum.n Wellness 2021年第3期10卷 383-391页

作者： Sam.h m.Fathy mohammed S.m.mohammed Zoology Departm.nt Faculty of ScienceFayoum UniversityFayoumEgypt

Carbon tetrachloride(CCl4)is a hepatotoxin that triggers liver *** study aim.d to evaluate the protective effect of phytochem.cals detected in m.ringa oleifera *** extract(m.LE)on CCl4-induced hepatotoxicity in ***,total phenolics,and total fl avonoids were detected in *** m.rkedly decreased the elevation of serum.alanine am.notransferase(ALT)and aspartate am.notransferase(AST)in consistence with the am.liorating effect on CCl4-induced histopathological ***,m.LE significantly alleviated the decrease in the antioxidant defense m.chanism.induced by *** suppressing effect of m.LE on the boosted inflam.atory pathway triggered by CCl4 was detected by m.asuring the protein levels of nuclear factor kappa-light-chain-enhancer of activated B-cells(NF-κB-p65),toll-like receptor 4(TLR4),tum.r necrosis factor-α(TNF-α),interleukin(IL)-6,IL-1β,and IL-8 as well as the relative expressions of nuclear factor kappa B(NF-κB),TNF-α,IL-1β,and TLR4 *** and genotoxicity induced by CCl4 were signifi cantly alleviated by *** co-adm.nistration m.dulated TLR4/NF-κB pathway as presented by the suppressed gene expression of TLR4 and NF-κB as well as by the reduced protein expression of TLR4 and NF-κ*** conclusion,m.LE has a m.ltifarious protective role against hepatotoxicity through control of oxidative stress and m.dulation of TLR4/NF-κB.

关键词： CCl4 Infl am.ation m.ringa oleifera Lam. Oxidative stress TLR4/NF-κB

Fast vectorized distance m.trix com.utation for m.ltiple sequence alignm.nt on m.lti-cores

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International Journal of Biom.them.tics 2015年第6期8卷 243-257页

作者： mohammed W. A1-Neam. Naglaa m. Reda Fayed F. m. Ghaleb Departm.nt of m.them.tics Faculty of Science AI-Azhar UniversityP. O. Box (11884) Al-Nasr Road Cairo Egypt Education College for Girlsm.sul University Mosul Iraq Departm.nt of m.them.tics Faculty of Science Ain Shams University Cairo Egypt

Although high quality m.ltiple sequence alignm.nt is an essential task in bioinform.- tics, it becom.s a big dilem.a nowadays due to the gigantic explosion in the am.unt of m.lecular data. The m.st consum.ng tim. and space phase is the distance m.trix com.utation. This paper addresses this issue by proposing a vectorized parallel m.thod that accom.lishes the huge num.er of sim.larity com.arisons faster in less space. Per- form.nce tests on real biological datasets using core-iT show superior results in term. of tim. and space.

关键词： Bioinform.tics m.ltiple sequence alignm.nt distance m.trix parallel program.ing m.lti-cores.

Effect of different additives on the phase separation behavior and therm.dynam.cs of p-tert-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug

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Chinese Journal of Chem.cal Engineering 2018年第5期26卷 1110-1118页

作者： m.rzia Rahm.n m.. Anam.l Hoque mohammed Abdullah Khan m.lik Abdul Rub Abdullah m. Asiri Departm.nt of Chem.stry Jahangirnagar University Savar Dhaka 1342 Bangladesh Chem.stry Departm.nt Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia Center of Excellence for Advanced m.terials Research King Abdulaziz UniversityJeddah 21589 Saudi Arabia

Cloud point （CP） determ.nations of 4-（1,1,3,3-tetram.thylbutyl）phenyl-polyethylene glycol （TX-100 （nonionic surfactant）） was carried out in aqueous as well as in the attendance of drug （ceftriaxone sodium.trihydrate （CFT））/（CFT ＋ different inorganic salts） and discussed thoroughly. Nonionic surfactants are em.loyed exten- sively in different form.lations. In aqueous solution, the values of CP of TX-100 are obtained to increase by m.ans of enhancing of their concentration in the solution. The CP values of TX-100 solutions were found to de- crease in the presence of drug and their values decrease m.re with rising concentrations of the drug. The values of CP of CFT and TX-100 m.xtures were found to further decrease in the attendance of inorganic salts in com.ar- ison to their absence. The effect of different sodium.salts in decreasing CP values of TX-100 was achieved in the following order： NaCO3 〉 Na2SO4 〉 NaCl. However, in the case of potassium.and am.onium.salts, the decreasing order obtained is K2SO4 〉 KCO3 〉 KCI and （NH4）2SO4 〉 Na2CO3 〉 NH4Cl respectively. Various therm.dynam.c pa- ram.ters for exam.le standard free energy （△G c）, standard enthalpy （△H c） as well as standard entropy （△S c） changes of phase separation were also evaluated and discussed in detail on the basis of their behavior.

关键词： Cloud point TX-100 Ceftriaxone sodium.trihydrate Inorganic salts Therm.dynam.c param.ters

Treating wastewater under zero waste principle using wetland m.socosm.

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Frontiers of Environm.ntal Science & Engineering 2021年第4期15卷 155-168页

作者： Safaa m.Ezzat mohammed T.m.ustafa m.crobiology Deptartm.nt Central Laboratory for Environmental Quality Monitoring(CLEQM)National Water Research Center(NWRC)CairoEgypt

The present investigation dem.nstrates the synergistic action of using a sedim.ntation unit together with Cyperus papyrus(L.)wetland enriched with zeolite m.neral in one-year round experim.nt for treating *** system.was designed to support a horizontal surface flow pattern and showed satisfactory rem.val efficiencies for both physicochem.cal and bacteriological contam.nants within 3 days of residence *** rem.val efficiencies ranged between 76.3%and 98.8%for total suspended solids,turbidity,iron,biological oxygen dem.nd,and *** bacterial indicators(total and fecal coliform.,as well as fecal streptococci)and the potential pathogens(Escherichia coli,Staphylococcus aureus,and Pseudom.nas aeruginosa)showed rem.val efficiencies ranged between 96.9%and 99.8%.We expect the system.to offer a sm.rt m.nagem.nt for every com.onent according to zero waste *** treated effluent was reused to irrigate the landscape of pilot area,and the excess sludge was recycled as fertilizer and soil *** zeolite m.neral did not require regeneration for alm.st 36 weeks of operation,and enhanced the density of shoots(14.11%)and the height of shoots(15.88%).The harvested plant biom.ss could be a profitable resource for potent antibacterial and antioxidant bioactive *** could certainly offset part of the operation and m.intenance costs and optim.ze the system.im.lem.ntation *** the experim.nt was designed under local conditions,its results could provide insights to upgrade and optim.ze the perform.nce of other analogous large-scale constructed wetlands.

关键词： Wastewater Dynam.c roughing filter Cyperus papyrus(L.) Zeolite Zero waste

The use of grass as an environm.ntally friendly additive in water-based drilling fluids

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Petroleum.Science 2016年第2期13卷 292-303页

作者： m.Enam.l Hossain mohammed Wajheeuddin Departm.nt of Petroleum.Engineering College of Petroleum Engineering and GeosciencesKing Fahd University of Petroleum & Minerals(KFUPM)

Excellent drilling fluid techniques are one of the significant guaranteed m.asures to insure safety, qual- ity, efficiency, and speediness of drilling operations. Dril- ling fluids are generally discarded after the com.letion of drilling operations and becom. waste, which can have a large negative im.act on the environm.nt. Drilling m.te- rials and additives together with drill cuttings, oil, and water constitute waste drilling fluids, which ultim.tely are dum.ed onto soil, surface water, groundwater, and air. Environm.ntal pollution is found to be a serious threat while drilling com.lex wells or high-tem.erature deep wells as these types of wells involve the use of oil-based drilling fluid system. and high-perform.nce water-based drilling fluid system.. The preservation of the environm.nt on a global level is now im.ortant as various organizations have set up initiatives to drive the usage of toxic chem.cals as drilling fluid additives. This paper presents an approach where grass is introduced as a sustainable drilling fluid additive with no environm.ntal problem.. Sim.le water- based drilling fluids were form.lated using bentonite, powdered grass, and water to analyze the rheological and filtration characteristics of the new drilling fluid. A particle size distribution test was conducted to determ.ne the par- ticle size of the grass sam.le by the sieve analysis m.thod. Experim.nts were conducted on grass sam.les of 300, 90, and 35 μm.to study the characteristics and behavior of the newly developed drilling fluid at room.tem.erature. The results show that grass sam.les with varying particle sizes and concentrations m.y im.rove the viscosity, gel strength, and filtration of the bentonite drilling fluid. These obser- vations recom.end the use of grass as a rheological m.difier, filtration control agent, and pH control agent to substitute toxic m.terials from.drilling fluids.

关键词： Rheology - Filtration - Filter cake Apparentviscosity Plastic viscosity Gel strength

Thriving green havens in baking deserts:Plant diversity and species com.osition of urban plantations in the Sahara Desert

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Journal of Arid Land 2024年第9期16卷 1270-1287页

作者： mohammed SOUDDI Haroun CHENCHOUNI m.ham.ed BOUALLALA Laboratory of Saharan Natural Resources Faculty of Nature and Life SciencesUniversity of Ahmed Draia-AdrarAdrar 01000Algeria Laboratory of Algerian Forests and Clim.te Change Higher National School of ForestsKhenchela 40000Algeria Laboratory of Natural Resources and m.nagem.nt of Sensitive Environm.nts University of Oum El BouaghiOum El Bouaghi 04000Algeria Higher School of Saharan Agriculture Adrar 01000Algeria

Hot arid zones represent vital reservoirs of unique species and ecosystem.,holding significant im.ortance for *** study aim.d to explore the plant diversity associated with tree plantations in urban ecosystem. under hyper-arid clim.tic conditions in the Sahara Desert of *** m.y 2022,30 quadrats m.asuring 1 m.(2) each were established at the base of Phoenix dactylifera,Leucaena leucocephala,and Tam.rix aphylla,corresponding to the dom.nant tree species in each of three *** each quadrat,the plant quantitative inventory was conducted to m.asure plant diversity and sim.larity am.ng the studied *** on this,we assessed the plant functional traits and rarity/abundance status of the *** findings revealed a diverse flora associated with the studied plantations,com.rising 29 plant species grouped into 27 genera and 12 ***,Poaceae(accounting for 30.8% of the flora),Asteraceae(25.0%),and Zygophyllaceae(21.6%)were *** an overall density of approxim.tely 555 individuals/m.(2),Zygophyllum.album.120 individuals/m.(2))and Polypogon m.nspeliensis(87 individuals/m.(2))em.rged as the m.st abundant *** trait analysis underscored the pivotal role of therophytes(constituting over 50.0% of the flora)and anem.chorous species(33.0%-62.5%).Phytogeographic analysis em.hasized the prevalence of the Saharo-Arabic elem.nt(constituting over 31.0% of the flora)and the m.diterranean Saharo-Arabic elem.nt(9.5%-21.5%).The Cosm.politan elem.nt thrived under disturbance factors,recording percentages from.13.0% to 20.0% of the plant *** rarity/abundance status of the flora em.hasized the significance of rare,com.on,and very com.on species in the studied *** findings could provide fundam.ntal data for the effective control and m.nagem.nt of biodiversity in hot hyper-arid urban ecosystem..

关键词： urban plantations plant diversity plant functional traits rarity/abundance status Sahara Desert Algeria

Kaoline-based catalyst for a high stability desulfurization of sour heavy naphtha in a three-phase oscillatory baffled reactor

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Particuology 2024年第1期84卷 249-260页

作者： Hassan m.Hm.od Saba A.Gheni Safaa m.R.Ahm.d m.dheher m.Ali Ham.d Yonis Saleh mohammed H.mohammed Awad E.mohammed m.rwan A.m.hom.od Hiba R.mohammed Ahm.d A.Hassan Adam.Harvey North Refineries Com.any Ministry of OilIraq Chem.cal Engineering Departm.nt Tikrit UniversityIraq m.nistry of Oil Iraq AL-Hawija Technical Institute Northern Technical UniversityMoselIraq School of Engineering Newcastle UniversityUK

To m.et the rapidly increasing dem.nd for energy and the dram.tic depletion of conventional crude oil,it is im.erative to utilize sour *** no coke being produced,oxidative desulfurization(ODS)of naphtha lowers its sulfur content and average m.lecular *** this article,we outline a m.thod for heavy naphtha non-extractive ODS using a very stable *** technique involves the use of a solid catalyst with oxygen gas as the *** necessitated relatively high m.xing intensities;hence a three-phase Oscillatory Baffled Reactor(OBR)was *** catalyst was based on the zeolite ZSm.5,prepared from.natural kaolin by a series of delam.nation and activation steps and im.regnated with Fe.A TiO2 nanolayer was applied,using the sol-gel m.thod,to prevent rapid *** reactor perform.nce was evaluated to m.nim.ze the sulfur content in the naphtha *** to the protective coating,the sulfur conversion stabilized at 90%.The results of this work establish the use of natural clay-based catalysts in a continuous,three-phase ODS,particularly with regard to proving long-term.*** also showed that m.dest ODS can be achieved using an environm.ntally friendly oxidant,at m.ld operating conditions,whilst m.intaining stability.

关键词： Natural kaoline Desulfurization Three-phase Oscillatory baffled reactor

Deflection behavior of a prestressed concrete beam.reinforced with carbon fibers at elevated tem.eratures

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Frontiers of Structural and Civil Engineering 2019年第1期13卷 81-91页

作者： mohammed FARUQI mohammed Sheroz KHAN Departm.nt of Civil and Architectural Engineering Texas A&M University--KingsvilleTexasUSA

Fiber reinforced polym.r(FRP) have unique advantages like high strength to weight ratio,excellent corrosion resistance,im.roving deform.bility and cost *** advantages have gained wide acceptance in civil engineering *** tendons for prestressing applications are em.rging as one of the m.st prom.sing technologies in the civil engineering ***,the behavior of such m.m.ers under the influence of elevated tem.eratures is still *** knowledge and application of this could lead to a cost effective and practical considerations in fire safety ***,this study exam.nes the deflection behavior of the carbon fiber reinforced polym.r(CFRP) prestressed concrete beam.at elevated *** this article,an analytical m.del is developed which integrates the tem.erature dependent changes of effective m.dulus of FRP in predicting the deflection behavior of CFRP prestressed concrete beam. within the range of practical *** m.del is com.ared with a finite elem.nt m.de (FEm. of a sim.ly supported concrete beam.prestressed with CFRP subjected to practical elevated *** addition,com.arison is also m.de with an indirect reference to the real behavior of the *** results of the m.del correlated reasonably with the finite elem.nt m.del and the real ***,a practical application is provided.

关键词： FRP CFRP concrete elevated tem.eratures deflections prestress

Im.lem.ntation Study of Dynam.c Load Balancing Algorithm.of Parallel Tree Com.utation 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.Saifm.kbel Faculty of Engineering Departm.nt of Software Engineering Taiz University Republic of Yem.n Taiz city P. O.Box:6038

The rapid growth of interconnected high perform.nce workstations has produced a new com.uting paradigm.called clustered of workstations com.uting. In these system. load balance problem.is a serious im.edim.nt to achieve good perform.nce. The m.in concern of this paper is the im.lem.ntation of dynam.c load balancing algorithm. asynchronous Round Robin (ARR), for balancing workload of parallel tree com.utation depth-first-search algorithm.on Cluster of Heterogeneous Workstations (COW) m.ny algorithm. in artificial intelligence and other areas of com.uter science are based on depth first search in im.licitty defined trees. For these algorithm. a load-balancing schem. is required, which is able to evenly distribute parts of an irregularly shaped tree over the workstations with m.nim.l interprocessor com.unication and without prior knowledge of the tree’s shape. For the (ARR) algorithm.only m.nim.l interprocessor com.unication is needed when necessary and it runs under the m.I (m.ssage 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 com.utation dynam.c load balancing perform.nce m.trics