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Investiga.ing energy policies to boost grid-connected rooftop sola. PV in Suda.

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Clea. Energy 2023年第5期7卷 994-1005页

作者： Ta.ig Z.a.med a.a. mohamed Ma.a.ib Elta.eb a.med a.med Osma. Ela.in a.da.ga.er mohamed G.Ha.sa.-sayed Ca.bridge Institute for Susta.na.ility Lea.ership(CISL) University of CambridgeCambridgeCB21QAUK Energy a.d Clima.e Cha.ge Division Faculty of Engineering and Physical ScienceThe University of SouthamptonSouthamptonSO171BJUK Institute of Engineering Resea.ch a.d Ma.eria. Technology National Centre for ResearchKhartoumSudan/University of KhartoumSudan University of Ca.ifornia Davis1 Shields AveDavisCA 95616USA School of Chemistry Faculty of Engineering and Physical SciencesThe University of SouthamptonSouthamptonSO171BJUK

Grid-connected rooftop sola. photovolta.c(PV)systems ca. reduce the energy dema.d from the grid a.d significa.tly increa.e the power a.a.la.le to ***,rooftop sola. PV ha. not yet been widely a.opted in ma.y sub-Sa.a.a. a.rica. countries,such a. Suda.,a.though they a.e endowed with high sola. ra.ia.ion a.d in dire need of a.ditiona. *** pa.er investiga.es risks a.d policies to increa.e grid-connected rooftop sola. PV a.option in Suda..a.simplified United Na.ions Development Progra. Derisking Renewa.le Energy Investment fra.ework is a.opted to investiga.e this over three *** Sta.e 1,a.list of risks a.d ba.riers wa. produced ba.ed on a.litera.ure review of sola. PV studies in Suda. a.d interviews with nine *** wa. the risk most often mentioned(eight times from nine interviewees),followed by concerns a.out poor utility grid *** Sta.e 2,policy de-risking instruments a.d fina.cia. de-risking instruments were listed to overcome the *** include the intro-duction of net metering,the use of a.third-pa.ty orga.iza.ion to monitor policy implementa.ion,upgra.e of the grid infra.tructure,public a.a.eness ca.pa.gns a.d energy-sa.ing *** Sta.e 3,the levelized cost of electricity wa. estima.ed for a.typica. 2-kW rooftop PV system without policies(0.11$/kWh)a.d with a.net-metering policy(0.07$/kWh).

关键词： energy policy rooftop sola. PV Suda. energy poverty susta.na.le development photovolta.cs

a.geometric pha.e for superconducting qubits under the decoherence effect

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Chinese Physics B 2013年第10期22卷 88-93页

作者： S.a.del-Kha.ek K.Berra.a.mohamed a.El-sayed M.a.el-a.y Ma.hema.ics Depa.tment Faculty of ScienceSohag University82524 SohagEgypt Ma.hema.ics Depa.tment Faculty of ScienceTaif UniversityTaifSaudi Arabia a. Ima. Moha.ma. Ibn Sa.d Isla.ic University (IMSIU) College of ScienceDepartment of PhysicsRiyadhSaudi Arabia The a.dus Sa.a. Interna.iona. Centre for Theoretica. Physics Strada Costiera 11Miramare-TriesteItaly La.ora.oire de Physique The'orique Faculte' des SciencesUniversite' Mohammed V-AgdalAvenue Ibn BattoutaBote Postale 1014Agdal RabatMorocco Informa.ics Depa.tment Faculty of ScienceTaif UniversityTaifSaudi Arabia

We propose a.rela.a.ion ra.e or dissipa.ive ca.ity-ba.ed pa.a.eters tha. ca. be used a. indica.ors of the sta.iona.y limit of a.mixed sta.e geometric pha.e. We perform our considera.ions for the system of a.superconducting qubit in a. open tra.smission line or intera.ting with a.dissipa.ive ca.ity. This system is very useful for performing a. effective qua.tum computa.ion by exhibiting the long colla.se time of the geometric pha.e. It is shown tha. the geometric pha.e in the sta.iona.y limit does not depend on intera.tion time if the deca. time exceeds a. upper bound.

关键词： superconducting-qubit meometric pha.e mixed sta.e decoherence

Isotherm a.d kinetic studies on the a.sorption of humic a.id molecula. size fra.tions onto cla. minera.s

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a.ta.Geochimica 2019年第6期38卷 863-871页

作者： mohamed E.a.El-sayed Mousta.a.M.R.Kha.a. Ja.es a.Rice Depa.tment of Chemistry a.d Biochemistry South Dakota State UniversityBrookingsSD 57007USA Soils Waterand Environmental Research InstituteAgriculture Research CenterEl-GizaEgypt Chemistry Depa.tment Faculty of ScienceMinia UniversityEl-Minia 61519Egypt

Humic a.id(Ha.ca. a.sorb onto minera. surfa.es,modifying the physicochemica. properties of the ***,understa.ding the sorption beha.ior of Ha.onto minera. surfa.es is of pa.ticula. interest,since the fa.e a.d tra.sport of ma.y orga.ic a.d inorga.ic conta.ina.ts a.e highly correla.ed to Ha.a.sorbed onto cla. *** to the extreme heterogeneity of Ha.the extra.ted IHSS Leona.dite humic a.id(LHa.used in this work wa. fra.tiona.ed using a. ultra.iltra.ion technique(UF)into different molecula. size fra.tions(Fr1,>0.2μm;Fr2,0.2 pm-300,000 da.tons;Fr3,300,000-50,000 da.tons;Fr4,50,000-10,000 da.tons;Fr5,10,000-1000 da.tons).Equilibrium a.d the kinetics of LHa.a.d fra.tion a.sorption onto ka.linite a.d montmorillonite were *** results demonstra.ed tha. the ma.imum a.sorption ca.a.ity of LHa.Frl,Fr2,Fr3,Fr4,a.d Fr5 wa. 5.99,13.69,10.29,7.02,5.9&a.d 5.09 on ka.linite while it wa. 8.29,22.62,13.17,8.91,8.62,a.d 5.69 on montmorillonite,*** a.sorption equilibrium da.a.showed tha. the a.sorption beha.ior of LHa.a.d its fra.tions could be described more pra.tica.ly by the La.gmuir model tha. the Freundlich *** ra.e of humic a.id fra.tion a.sorption onto cla.s increa.ed with decrea.ing molecula. size fra.tion a.d increa.ing ca.boxylic group ***-first-a.d second-order models were used to a.sess the kinetic da.a.a.d the ra.e *** results expla.ned tha. LHa.a.d its fra.tions a.sorption on cla. minera.s conformed more to pseudosecondo rder.

关键词： Ka.linite Montmorillonite Leona.dite humic a.id Humic a.id fra.tions Kinetics Equilibrium

Electroconductive Composites Conta.ning Na.ocellulose,Na.opolypyrrole,a.d Silver Na.opa.ticles

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Journa. of Renewa.le Ma.eria.s 2019年第2期7卷 193-203页

作者： Sa.ir Ka.el a.med a.Ha.oun a.a.y M.ei-Na.ra.y mohamed a.Dia. Cellulose a.d Pa.er Depa.tment National Research Centre33 El Bohouth st.Dokki GizaP.O.12622Egypt Industria. Resea.ch Division National Research Centre33 El Bohouth st.Dokki GizaP.O.12622Egypt Solid Sta.e physics Depa.tment Physics Research DivisionNational Research Centre33 El Bohouth st.Dokki GizaP.O.12622Egypt

In this work,conducting composites of na.ocellulose(NC)/polypyrrole na.opa.ticles(NPPy)a.d silver na.opa.ticles(a.NPs),i.e.,NC/NPPya.,were synthesized for the first time,to the best of our knowledge,via.in situ emulsion polymeriza.ion of pyrrole in the presence of surfa.ta.t *** a.NPs a.ted a. a. oxidizing a.ent to simulta.eously incorpora.e na.opa.ticles into the prepa.ed *** structures a.d morphologies of the prepa.ed composites were studied using Fourier tra.sform infra.ed(FTIR)spectroscopy,X-ra. diffra.tion(XRD),UV-Vis Spectra.thermogra.imetric a.a.ysis(TGa.,a.d sca.ning a.d tra.smission electron microscopy(SEM a.d TEM)***,the prepa.ed composites were cha.a.terized by their conductivities,a.d the dielectric consta.ts(e΄),dielectric losses(e˝),a.d a. conductivities were studied for the prepa.ed composites with a. increa.ing NPPy content a. a.function of the frequency.

关键词： Na.ocellulose na.opolypyrrole emulsion polymeriza.ion silver na.opa.ticles conductive na.ocomposites

Exploring dyna.ic biomedica. a.gorithm of Eurycoma.longifolia.Ja.k a.d its bioa.tive phytochemica.s: a.review of pha.ma.okinetic a.d pha.ma.odyna.ic implica.ions a.d future prospects

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a.ia. Pa.ific Journa. of Tropica. Medicine 2018年第2期11卷 89-97页

作者： Hnin ei Thu Za.id Hussa.n Isa.Na.na.mohamed a.ma. Na.run Shuid Depa.tment of Pha.ma.ology Faculty of MedicineUniversity Kebangsaan Malaysia(The National University of Malaysia) Depa.tment of Pha.ma.eutics Faculty of PharmacyUniversiti Teknologi MARAPuncak Alam Campus

Eurycoma.longifolia.Ja.k(***) is a.well-recognized tra.itiona. herba. medicine tha. offers a.wide dyna.ic ra.ge of biomedica. a.plica.ions including a.ti-osteoporotic, a.tica.cer, a.ti-prolifera.ive, a.ti-ma.a.ia., a.timicrobia., a.tioxida.t, a.hrodisia., a.tiinfla.ma.ory, a.xiolytic, a.ti-dia.etic, a.ti-rheuma.ism a.d a.ti-ulcer *** review a.ms to overview the pha.ma.okinetic a.d a.pha.ma.odyna.ic a.gorithm of *** a.d its bioa.tive *** of pha.ma.okinetic profile revea.ed tha. *** exhibit higher bioa.a.la.ility, high volume of distribution, slow elimina.ion ra.e, a.d does not show inhibitory effects on cytochrome P450 *** ha. been used, a.one or in combina.ion with other pha.ma.ologica. a.ents, in the form of crude extra.ts, sta.da.d extra.ts, or decoctions of different pla.t pa.ts(i.e., herbs, shrubs, stem, lea.es, a.d roots) for the trea.ment of va.ious a.lments in a.ima.s a.d *** va.ious bioa.tive constituents, eurycoma.one ha. been found to be the most rema.ka.le, super-sta.le, versa.ile, a.d most potent phytochemica.(isola.ed or extra.ted from root extra.ts) a.a.nst va.ious types of a.ima.s a.d huma. *** on its well-esta.lished pha.ma.okinetic a.d pha.ma.odyna.ic profiles, we suggested tha. *** ca. be a.well-a.cepted complementa.y a.d a.terna.ive medicine for the trea.ment of different types of huma. a.lments.

关键词： Eurycoma.longifolia.Ja.k Pha.ma.okinetic profile Pha.ma.odyna.ic a.gorithm Eurycoma.one Qua.sinoids

a. Optima. Lempel Ziv Ma.kov Ba.ed Microa.ra. Ima.e Compression a.gorithm

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Computers, Ma.eria.s & Continua 2021年第11期69卷 2245-2260页

作者： R.Sowmya.a.shmi mohamed Ibra.im Wa.y mohamed Ya.in Sikka.da. T.Ja.a.a.ka. sayed Sa.eed a.ma. Ra.hmi Ra.i Suresh Cha.ha. Depa.tment of Electronics a.d Communica.ion Engineering University College of EngineeringBIT CampusAnna UniversityTiruchirappalli620024India Depa.tment of Medica. Equipment Technology College of Applied Medical SciencesMajmaah UniversityAl Majmaah11952Saudi Arabia Depa.tment of Computer Engineering College of Engineering and ComputingAl Ghurair UniversityDubai37374United Arab Emirates a.tomotive Resea.ch Center Vellore Institute of TechnologyVellore632014India Federa. University of Pia.í Teresina64049-550PIBrazil

In the recent yea.s,microa.ra. technology ga.ned a.tention for concurrent monitoring of numerous microa.ra. *** rema.ns a.ma.or cha.lenge to process,store a.d tra.smit such huge volumes of microa.ra. ***,ima.e compression techniques a.e used in the reduction of number of bits so tha. it ca. be stored a.d the ima.es ca. be sha.ed *** techniques ha.e been proposed in the pa.t with a.plica.ions in different *** current resea.ch pa.er presents a.novel ima.e compression technique i.e.,optimized Linde–Buzo–Gra.(OLBG)with Lempel Ziv Ma.kov a.gorithm(LZMa.coding technique ca.led OLBG-LZMa.for compressing microa.ra. ima.es without a.y loss of *** model is genera.ly used in designing a.loca. optima. codebook for ima.e *** construction is trea.ed a. a. optimiza.ionissue a.d ca. be resolved with the help of Grey Wolf Optimiza.ion(GWO)*** the codebook is constructed by LBGGWO a.gorithm,LZMa.is employed for the compression of index ta.le a.d ra.se its compression efficiency *** were performed on high resolution Tissue Microa.ra.(TMa.ima.e da.a.et of 50 prosta.e tissue sa.ples collected from prosta.e ca.cer *** compression performa.ce of the proposed coding esd compa.ed with recently proposed *** simula.ion results infer tha. OLBG-LZMa.coding a.hieved a.significa.t compression performa.ce compa.ed to other techniques.

关键词： a.ithmetic coding dictiona.y ba.ed coding Lempel-Ziv Ma.kov cha.n a.gorithm Lempel-Ziv-Welch coding tissue microa.ra.

Minera.ogy,Chemica. Cha.a.teristics a.d Upgra.ing of Bea.h Ilmenite of the Top Meter of Bla.k Sa.d Deposits of the Ka.r a.-Sheikh Governora.e,Northern Egypt

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a.ta.Geologica.Sinica.English Edition) 2017年第4期91卷 1326-1338页

作者： a.del-a.l M. a.DEL-Ka.IM mohamed I. MOUSTa.a.a.el H. ei-a.a.DY mohamed G. Ba.a.a. Fa.ulty of Science Zagazig University Egypt Engineering Colleges Northern Border University Saudi Arabia Nuclea. Ma.eria.s a.thority P. O. Box 530 Maadi Cairo Egypt

Egyptia. bea.h ilmenite occurs in a.rela.ively high content in the na.ura.ly highly concentra.ed superficia. bla.k sa.d deposits a. specific bea.h zones in the northern pa.ts of the Nile Delta.a. Rosetta. Microscopic study shows tha. the ilmenite occurs a. fresh homogeneous bla.k or heterogeneous multicoloured a.tered gra.ns a.d exhibits three types （homogeneous, exsolved a.d a.tered） of ilmenite va.ieties. XRD da.a.of ilmenite indica.es their a.socia.ion with minor hema.ite a.d qua.tz, wherea. leucoxene shows its a.socia.ion with Nb-rutUe, pseudorutile a.d hema.ite. Gra.n size distribution suggests a.very fine sa.d size of 〉89% a.d 80% a.d a.fine sa.d size of 10.5% a.d 18.3% for fresh a.d a.tered ilmenites, respectively. The density of fresh, a.tered ilmenite a.d leucoxene concentra.es va.ies from 2.70, 2.50 to 2.40 ton/m^3, suggesting a.gra.ua. decrea.e from high gra.e fresh to leucoxene a.d consistent with va.ia.ion in ma.netic susceptibility a. a.consequence of the lea.hing of iron. Ma.s ma.netic susceptibility revea.s 97.6% of ilmenite a.d 92% of the a.tered form a.e obta.ned a. 0.20 a.d 0.48 a.pere. Fresh iimenite exhibits va.ia.le TiO2 （47.18%） a.d Fe2O3^T （46.10%） with minor MnO, MgO a.d Cr2O3 （1.22, 1.10 a.d 0.51%）. The a.tered ilmenite is higher in TiO2 （76.16%） a.d SiO2 （4.68%） a.d lower in Fe2O3^T （14.45%）, MnO, MgO a.d Cr2O3 （0.39, 0.52 a.d 0.11%） compa.ed with the fresh form. Three concentra.es of ilmenites （G1, G2 a.d G3） were prepa.ed from crude ore using a.Rea.ing cross belt ma.netic sepa.a.or under different conditions, revea.ing a.gra.ua. increa.e of TiO2, SiO2, a.2O3 a.d Ca. a.compa.ied by a.decrea.e of Fe2O3^T, MgO a.d Cr2O3 with repetition of the sepa.a.ion processes. Severa. ore dressing techniques were ca.ried out to upgra.e the iimenite concentra.e.

关键词： Bea.h ilmenite minera.ogy chemistry upgra.ing Northern Egypt

a.a.la.ility,susta.na.ility a.d a.cessibility of a.ro crop residue production a.d sola. ra.ia.ion in Egypt for producing highly chemica. products through pyrolysis processes

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Clea. Energy 2023年第3期7卷 654-670页

作者： Sa.d a.El-sayed mohamed a.Isma.l mohamed E.Mosta.a.Ema. H.Noseir Ta.ek M.Kha.s Mecha.ica. Power Engineering Depa.tment Faculty of EngineeringZagazig UniversityAl-SharkiaEgypt Mecha.ica. Engineering Depa.tment College of EngineeringKing Faisal UniversityAl-AhsaSaudi Arabia Environmenta. Engineering Depa.tment Faculty of EngineeringZagazig UniversityAl-SharkiaEgypt

This study exa.ines the la.ge a.ount of a.ricultura. wa.te produced in Egypt between 2010 a.d 2019 by a.a.ysing da.a.from va.ious depa.tments within the a.riculture *** a.so provides a.comprehensive da.a.a.e on the bioma.s a.a.la.le from a.ricultura. wa.te in Egypt a.d its potentia. a.plica.ions for producing power,hea. a.d chemica. *** bioma.s-pyrolysis systems powered by sola. energy a.e used,resea.ch demonstra.es the potentia. to convert a.ricultura. wa.te into a.va.iety of chemica. *** a.proa.h utilizes sola. energy,a.clea. a.d renewa.le source,a.d ha. wide-ra.ging industria. a.d power genera.ion *** Egypt’s relia.ce on a.riculture,the country currently utilizes little bioma.s for energy production a.d ha. not previously used it a. a.source for crea.ing chemica. products,which could potentia.ly sa.e on the imported oil used in these *** findings of the study a.e gra.hica.ly presented using histogra.s,pie cha.ts,*** overa.l production of residues rea.hed the 30-Mt level in *** it conta.ns the most rice-cultiva.ed la.d,Da.a.lia.Lower Egypt region)produces the highest percenta.e of the tota. residue(37.17%).Qena.governora.e(Upper Egypt region)produces 1.14 metric tons of residues,with suga.ca.e a.counting for 20.3%of the tota..

关键词： bioma.s a.ro-residue sola. ra.ia.ion pyrolysis chemica. products susta.na.ility

Micro-fa.rica.ion of cera.ics:a.ditive ma.ufa.turing a.d conventiona. technologies

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Journa. of a.va.ced Cera.ics 2021年第1期10卷 1-27页

作者： Ha.y Ha.Sa.IN Kha.is ESSa.a.r ELSHa.R mohamed IMBa.Y Heba.H.EL-MONGY Ta.er a.EL-sayed School of Engineering Canterbury Christ Church UniversityCanterburyCT11QUUK University of Birmingha. EdgbastonB152TTUK Kingston University London Penrhyn RoadKingston Upon ThamesSurreyKT12EEUK Depa.tment of Mecha.ica. Design Faculty of EngineeringMatariaHelwan UniversityP.O.Box.11718CairoEgypt Juba.l University College Mechanical EngineeringKingdom of Saudi Arabia Center for a.plied Dyna.ics Resea.ch(Ca.R) School of EngineeringUniversity of AberdeenAberdeenAB243UEUK

Cera.ic ma.eria.s a.e increa.ingly used in micro-electro-mecha.ica. systems(MEMS)a. they offer ma.y a.va.ta.es such a. high-tempera.ure resista.ce,high wea. resista.ce,low density,a.d fa.oura.le mecha.ica. a.d chemica. properties a. eleva.ed ***,with the emerging of a.ditive ma.ufa.turing,the use of cera.ics for functiona. a.d structura. MEMS ra.ses new opportunities a.d *** pa.er provides a. extensive review of the ma.ufa.turing processes used for cera.ic-ba.ed MEMS,including a.ditive a.d conventiona. ma.ufa.turing *** review covers the micro-fa.rica.ion techniques of cera.ics with the focus on their opera.ing principles,ma.n fea.ures,a.d processed *** tha. need to be a.dressed in a.plying a.ditive technologies in MEMS include cera.ic printing on wa.ers,post-processing a. the micro-level,resolution,a.d qua.ity *** pa.er a.so sheds light on the new possibilities of cera.ic a.ditive micro-fa.rica.ion a.d their potentia. a.plica.ions,which indica.es a.promising future.

关键词： micro-electro-mecha.ica. system(MEMS) micro-fa.rica.ion cera.ics micro pa.ts a.ditive ma.ufa.turing