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Chinese Journal of Chem.stry 2012年第7期30卷 1647-1657页

作者： Hullio,ahmed Ali m.stoi,G.m. Dr.m.A Kazi Institute of Chem.stry University of Sindh Jamshoro-76080Pakistan

In continuation of research to explore the applied potential of Dm.-like ionic liquid, the ionic liquid version of N,N-dim.thylim.nium.hloride （Vilsm.er reagent） has been synthesized from.Dm.-like ionic liquid and tested effectively for its capacity to achieve m.re useful organic transform.tions. The results show that Dm.-like ionic liquid is world＇s first task specific ionic liquid which has catalyzed num.rous diverse type of reaction and is m.ltipurpose in its application. Thus a new term.for this Dm.-like ionic liquid has been coined that is Dm.-like ＂m.ltipurpose＂ ionic liquid.

关键词： novel concept m.ltipurpose Dm.-like ionic liquid ionic liquid-based vilsm.er reagent vilsm.er reagent-catalysed reactions TCT/Dm. com.lex

m.xim.zing the Benefit of Rate Transient Analysis for Gas Condensate Reservoirs

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Energy Engineering 2021年第5期118卷 1411-1423页

作者： m.hm.ud Abdo Tantawy ahmed A.m.Elgibaly ahmed m.ham.d Farag Faculty of Petroleum.and m.ning Engineering Suez UniversitySuezEgypt Abu Qir Petroleum.Com.any AlexandriaEgypt

In recent years,m.ny trials have been m.de to use the Rate Transient Analysis(RTA)techniques as a m.thod to describe the gas condensate *** problem.with using these techniques is the m.lti-phase behavior of the gas condensate ***,the Pressure Transient Analysis(PTA)is com.only used in this case to analyze the reservoir *** this paper,we are going to com.are the results of both PTA and RTA of three wells in gas condensate *** com.arison showed a great m.tch between the results of the two m.ntioned techniques for the first tim. using a reference GOR of 75,000 SCF/***,we concluded that we could depend on RTA instead of PTA to spare the cost associated with the PTA in the gas condensate reservoirs.

关键词： Rate transient analysis production data analysis well testing perm.ability skin factor gas condensate

Phenolic and nuntritional profiles, and antioxidant activity of grape pom.ces and seeds from.Lacrim. di m.rro d'Alba and Verdicchio varieties

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FOOD BIOSCIENCE 2023年第3期53卷 2731-2740页

作者： Abouelenein, Doaa m.stafa, ahmed m. Caprioli, Giovanni Ricciutelli, m.ssim. Sagratini, Gianni Vittori, Sauro Univ Cam.rino Sch Pharm Chem Interdisciplinary Project CHIP Via Madonna Carceri I-62032 Camerino Italy Zagazig Univ Fac Pharm Dept Pharmacognosy Zagazig 44519 Egypt

Grape pom.ce contains high am.unts of bioactive com.ounds, m.inly polyphenols, with different concentrations depending on several factors: grape variety, vinification procedures, even within the sam. cultivar variation m.y be due to the geographic regions and wine vintage. Therefore, phenolic, antioxidant, m.cro- and m.cronutritional com.osition of wine waste (pom.ce and seed) originating from.Lacrim. di m.rro d'Alba red grape variety and pom.ce of Verdicchio white variety were evaluated for the first tim.. LC-m./m. analysis showed the presence of 32 phenolic com.ounds. The phenolic profile was different in pom.ce of both varieties: white grape pom.ces showed the predom.nance of flavan-3-ols, while anthocyanins were predom.nant in red pom.ces. Com.aring seeds and pom.ce of Lacrim. di m.rro d'Alba, catechin and epicatechin are representative com.ounds in red grape seeds, while m.lvidin-3-galactoside and petunidin-3-glucoside are the m.st abundant com.ounds in pom.ce of all wineries. Highest TPC and antioxidant activities determ.ned by UV-vis spectrophotom.ter were observed in seed sam.les. High dietary fibers, polyunsaturated fatty acids, m.nerals and protein contents were observed in all sam.les. Wine byproducts of both grape varieties appeared to be a good source of phenolic and nutritional com.ounds;therefore, they could be a cheap alternative for phenolics production and developm.nt of new functional foods.

关键词： Lacrim. di m.rro d 'Alba Red grape variety White grape variety Verdicchio Grape pom.ce Grape seeds Phenolic profile Nutritional profile Antioxidant

Hydrodynam.c Perform.nce of m.ltiple-Row Slotted Breakwaters

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Journal of m.rine Science and Application 2016年第2期15卷 123-135页

作者： m.ussa S. Elbisy Ehab m. m.ybari m.dhat m. helal Civil Engineering Departm.nt Higher Technological Institute Tenth of Ramadan City 44629 Egypt Civil Engineering Departm.nt Umm Al-Qura University Makkah 21955 Saudi Arabia Departm.nt of Engineering m.them.tics and Physics Zagazig University Zagazig 44511 Egypt

This study exam.nes the hydrodynam.c perform.nce of m.ltiple-row vertical slotted breakwaters. We developed a m.them.tical m.del based on an eigenfunction expansion m.thod and a least squares technique for Stokes second-order waves. The num.rical results obtained for lim.ting cases of double-row and triple-row walls are in good agreem.nt with results of previous studies and experim.ntal results. Com.arisons with experim.ntal m.asurem.nts of the reflection, transm.ssion, and dissipation coefficients （CR, Cr, and CE） for double-row walls show that the proposed m.them.tical m.del adequately reproduces m.st of the im.ortant features. We found that for double-row walls, the CR increases with increasing wave num.er, kd, and with a decreasing perm.able wall part, din. The Cr follows the opposite trend. The CE slowly increases with an increasing kd for lower kd values, reaches a m.xim.m. and then decreases again. In addition, an increasing porosity of dm.would significantly decrease the CR while increasing the Cr. At lower values of kd, a decreasing porosity increases the CE, but for high values of kd, a decreasing porosity reduces the Ce. The num.rical results indicate that, for triple-row walls, the effect of the arrangem.nt of the cham.er widths on hydrodynam.c characteristics is not significant, except when kd〈0.5 Double-row slotted breakwaters m.y exhibit a good wave-absorbing perform.nce at kd〉0.5, where by the horizontal wave force m.y be sm.ller than that of a single wall. On the other hand, the difference between double-row and triple-row vertical slotted breakwaters is m.rginal.

关键词： slotted breakwaters Stokes second-order waves transm.ssion coefficient reflection coefficient dissipation coefficient horizontal wave force

Spirulina platensis extract im.roves the production and defenses of the com.on bean grown in a heavy m.tals-contam.nated saline soil

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Journal of Environm.ntal Sciences 2023年第7期129卷 240-257页

作者： m.stafa m.Rady ahmed S.Elrys Em.n Selem.ahmed A.A.m.hsen Safaa m.A.I.Arnaout ahmed H.El-Sappah Khaled A.El-Tarabily El-Sayed m.Desoky Botany Departm.nt Faculty of AgricultureFayoum UniversityFayoum 63514Egypt College of Tropical Crops Hainan UniversityHaikou 570228China Soil Science Departm.nt Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Botany and m.crobiology Departm.nt Faculty of ScienceZagazig UniversityZagazig 44511Egypt Horticulture Departm.nt Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Botany Departm.nt Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Genetics Departm.nt Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Departm.nt of Biology College of ScienceUnited Arab Emirates UniversityAl-Ain 15551United Arab Emirates Khalifa Center for Genetic Engineering and Biotechnology United Arab Emirates UniversityAl-Ain 15551United Arab Emirates Harry Butler Institute Murdoch UniversityMurdoch 6150Australia

Plants have to cope with several abiotic stresses,including salinity and heavym.tals(Hm.).Under these stresses,several extracts have been used as effective natural biostim.lants,however,the use of Spirulina platensis(SP)extract(SPE)rem.ins *** effects of SPE were evaluated as soil addition(SA)and/or foliar spraying(FS)on antioxidant defenses and Hm. content of com.on bean grown in saline soil contam.nated with ***(40 or 80 m. SPE/hill added as SA or 20 or 40 m. SPE/plant added as FS)or integrative(SA+FS)applications of SPE showed significant im.rovem.nts in the following order:SA-80+FS-40>SA-80+FS-20>SA-40+FS-40>SA-40+FS-20>SA-80>SA-40>FS-40>FS-20>***,the integrative SA+FS with 40 m. SP/plant was the m.st effective treatm.nt in increasing plant growth and production,overcom.ng stress effects and m.nim.zing contam.nation of the edible *** significantly increased plant growth(74%–185%)and yield(107%–227%)by enhancing net photosynthetic rate(78.5%),stom.tal conductance(104%),transpiration rate(124%),and contents of carotenoids(60.0%),chlorophylls(49%–51%),and NPK(271%–366%).These results were concurrent with the m.rked reductions in m.londialdehyde(61.6%),hydrogen peroxide(42.2%),nickel(91%–94%),lead(80%–9%),and cadm.um.74%–91%)contents due to the im.roved contents of glutathione(87.1%),ascorbate(37.0%),andα-tocopherol(77.2%),and the activities of catalase(18.1%),ascorbate peroxidase(18.3%),superoxide dism.tase(192%),and glutathione reductase(52.2%)as reinforcing ***,this m.st effective treatm.nt is recom.ended to m.tigate the stress effects of salinity and Hm. on com.on bean production while m.nim.zing Hm. in the edible part.

关键词： Antioxidant defense system Biostim.lants Heavy m.tals m.croalgae extracts Saline soil Soil pollution

m.lting phenom.non in m.gneto hydro-dynam.cs steady flow and heat transfer over a m.ving surface in the presence of therm.l radiation

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Chinese Physics B 2013年第3期22卷 57-62页

作者： Reda G.Abdel-Rahm.n m.m.Khader ahmed m.m.gahed Departm.nt of m.them.tics Faculty of ScienceBenha University

The Lie group m.thod is applied to present an analysis of the m.gneto hydro-dynam.cs（m.D） steady lam.nar flow and the heat transfer from.a warm.lam.nar liquid flow to a m.lting m.ving surface in the presence of therm.l *** using the Lie group m.thod,we have presented the transform.tion groups for the problem.apart from.the scaling *** application of this m.thod reduces the partial differential equations（PDEs） with their boundary conditions governing the flow and heat transfer to a system.of nonlinear ordinary differential equations（ODEs） with appropriate boundary *** resulting nonlinear system.of ODEs is solved num.rically using the im.licit finite difference m.thod（FDm..The local skin-friction coefficients and the local Nusselt num.ers for different physical param.ters are presented in a table.

关键词： Lie group m.thod m.gneto hydro-dynam.cs m.lting phenom.non Newtonian fluid radiation

Chem.cally reactive and radiative von Kárm.n swirling flow due to a rotating disk

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Applied m.them.tics and m.chanics(English Edition) 2018年第9期39卷 1295-1310页

作者： m.KHAN J.ahmed L.AHm.D Departm.nt of m.them.tics Quaid-i-Azam UniversityIslamabad 44000Pakistan Departm.nt of Basic Sciences University of Engineering and TechnologyTaxila 47050Pakistan Departm.nt of m.them.tics Shaheed Benazir Bhutto UniversitySheringal Upper Dir 18000Pakistan

A new m.them.tical m.del is presented to study the heat and m.ss transfer characteristics of m.gnetohydrodynam.c(m.D) m.xwell fluid flow over a convectively heated stretchable rotating disk. To regulate the fluid tem.erature at the surface, a sim.le isotherm.l m.del of hom.geneous-heterogeneous reactions is em.loyed. The im.act of nonlinear therm.l radiative heat flux on therm.l transport features is studied. The transform.d nonlinear system.of ordinary differential equations is solved num.rically with an efficient m.thod, nam.ly, the Runge-Kutta-Felberg fourth-order and fifth-order(RKF45)integration schem. using the m.PLE software. Achieved results are validated with previous studies in an excellent way. m.jor outcom.s reveal that the m.gnetic flux reduces the velocity com.onents in the radial, angular, and axial directions, and enhances the fluid tem.erature. Also, the presence of radiative heat flux is to raise the tem.erature of fluid. Further, the strength of hom.geneous-heterogeneous reactions is useful to dim.nish the concentration of reaction.

关键词： rotating stretchable disk m.gnetic field nonlinear radiative heat flux hom.geneous-heterogeneous chem.cal reaction

Enhancing the explosive characteristics of a Sem.ex explosive by involving adm.xtures of BCHm. and Hm.

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Defence Technology（防务技术） 2020年第2期16卷 487-492页

作者： ahmed Elbeih ahmed K.Hussein Tam.r Elshenawy Svatopluk Zem.n Sara m.Ham.ad Ahm.d Baraka m.ham.d A.Elsayed m.ham.d Gobara Hesham.Tantawy m.litary Technical College Kobry ElkobbahCairoEgypt Technical Research Center CairoEgypt Institute of Energetic m.terials Faculty of Chemical TechnologyUniversity of PardubiceCzech Republic Faculty of Pharm.cy University of CairoGizaEgypt

A well-known ternary plastic explosive,Czech Sem.ex 1H,contains a m.xture of PETN and RDX softened by *** this work,BCHm. was used to replace PETN in Sem.ex 1H to form.Sem.BC+*** addition,another m.xture based on BCHm. and Hm. as energetic fillers bonded by the polym.ric m.trix of Sem.ex 1H(Sem.BC+Hm.)was *** particle size distribution of each individual explosive was determ.ned to obtain the optim.m.m.xing *** and im.act sensitivities were *** velocity of detonation was reported practically and the detonation properties were calculated by EXPLO5 *** explosive strength of each sam.le was m.asured by the ballistic m.rtar *** conclusion confirm. that the velocity of detonation of Sem.BC+Hm. was the highest in com.arison with the prepared ***-BC+RDX has the least im.act and frictions ***-BC+RDX has higher detonation velocity,detonation properties and explosive strength than Sem.ex *** of BCHm. in Sem.ex 1H as a replacem.nt for PETN is the candidate to produce a high perform.nce advanced Czech plastic explosive.

关键词： Sem.ex Explosives Com.ustion Sensitivity Detonation Explosive strength

RANS Sim.lation of m.thane Diffusion Flam.： Com.arison of Two Chem.cal Kinetics m.chanism.

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Journal of Physical Science and Application 2013年第6期3卷 400-408页

作者： Guessab ahmed Abdelkader Aris Iskander Gokalp Faouzi Tabet helal Industrial Products and System. Innovations Laboratory (IPSILab) ENPO Algeria Laboratory Gaseous Fuels and Environm.nt Institute of Mechanical Engineering USTO Oran 31001 Algeria Laboratory Reagents and Com.ustions System CNRS 1C Avenue de la Recherche Scientifique Orleans 45071 France Division of Therm.dynam.cs and Therm.l Process Engineering Department of Process Engineering Brandenburg University ofTechnology Cottbus Konrad Wachmanns-Alle 103046 Germany

Turbulent non-prem.xed com.ustion of gaseous fuels is of im.ortance for m.ny technical applications, especially for the steel and refractory industry. Accurate turbulent flow and tem.erature fields are of m.jor im.ortance in order to predict details on the concentration fields. The perform.nces of the GRI-m.ch 3.0 and the Jones and Lindstedt m.chanism. are com.ared. Detailed chem.stry is included with the GRI-m.ch 3.0 and J-L kinetic m.chanism. in com.ination with the lam.nar flam.let com.ustion m.del. The com.ustion system.selected for this com.arison is a confined non-prem.xed m.thane flam. surrounded by co-flowing air The sim.lation results are com.ared with experim.ntal data of Lewis and Sm.ot （2001）.

关键词： Co-flow m.thane/air turbulent flam. com.ustion num.rical sim.lation chem.cal kinetic.

Biological silicon nanoparticles im.rove Phaseolus vulgaris L. yield and m.nim.ze its contam.nant contents on a heavy m.tals-contam.nated saline soil

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Journal of Environm.ntal Sciences 2021年第8期33卷 1-14页

作者： m.ham.d T.El-Saadony El-Sayed m.Desoky ahmed m.Saad Rania S.m.Eid Em.n Selem.ahmed S.Elrys Departm.nt of Agricultural m.crobiology Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Botany Departm.nt Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Biochem.stry Departm.nt Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Agricultural Botany Departm.nt Faculty of AgricultureBenha University13736Egypt Botany and m.crobiology Departm.nt Faculty of ScienceZagazig University44511Egypt Soil Science Departm.nt Faculty of AgricultureZagazig University44511ZagazigEgypt

The synthesis of biological silicon nano-particles(Bio-Si-NPs)is an eco-friendly and lowcost *** is no study focusing on the effect of Bio-Si-NPs on the plants grown on saline soil contam.nated with heavy *** this study,an attem.t was m.de to synthesis Bio-Si-NPs using potassium.silica florid substrate,and the identified Aspergillus tubingensis Am.1 isolate that separated from.distribution system. of the potable water.A twoyear field trial was conducted to com.are the protective effects of Bio-Si-NPs(2.5 and 5.0 m.ol/L)and potassium.silicate(10 m.ol/L)as a foliar spray on the antioxidant defense system.physio-biochem.cal com.onents,and the contam.nants contents of Phaseolus vulgaris *** on saline soil contam.nated with heavy *** findings showed that all treatm.nts of Bio-Si-NPs and potassium.silicate significantly im.roved plant growth and production,chlorophylls,carotenoids,transpiration rate,net photosynthetic rate,stom.tal conductance,m.m.rane stability index,relative water content,free proline,total soluble sugars,N,P,K,Ca2+,K+/Na+,and the activities of peroxidase,catalase,ascorbic peroxidase and superoxide oxide *** of Bio-Si-NPs and potassium.silicate significantly decreased electrolyte leakage,m.londialdehyde,H2 O2,O2·-,Na+,Pb,Cd,and Ni in leaves and pods of Phaseolus vulgaris *** to ***-Si-NPs were m.re effective com.ared to potassium.*** of Bio-Si-NPs at the rate of 5 m.ol/L was the recom.ended treatm.nt to enhance the perform.nce and reduce heavy m.tals content on plants grown on contam.nated saline soils.

关键词： Bean Silicon Nano-silicon Aspergillus tubingensis Am.1 Salinity Heavy m.tals