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Ca.a.ytic effect of SrTiO_3 on the hydrogen stora.e beha.iour of m.H_2

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Journa. of Energy Chem.stry 2019年第1期28卷 46-53页

作者： m.S.Ya.ya.m.ismail School of Ocea. Engineering University Malaysia Terengganu

The effects of Sr TiO_3 on the hydrogen stora.e properties of m.H_2 ha.e been studied for the first *** onset dehydrogena.ion tem.era.ure of the m.H_2-10 wt% SrTiO_3 is found to be 275 ℃, which is 55 ℃ lower a. com.a.ed to the a.-m.lled m.H_2. The com.osite is a.le to a.sorb 4.3 wt% of hydrogen in 60 m.n instea. of 1.1 wt% for the a.-m.lled m. H_2. m.a.while, the com.osite is a.le to relea.e 5.3 wt% of hydrogen in 17 m.n com.a.ed to 1.9 wt% by the a.-m.lled m. H_2 a. 320 ℃. The ca.cula.ed Ea.f the m. H_2-10 wt% SrTiO_3 is 109 k J/m.l, which is 26.3 kJ/m.l lower tha. the ca.cula.ed Ea.f the a.-m.lled m.H_2. The Sr TiO_3 is not decom.osed during the ba.l m.lling a.d the re/dehydrogena.ion processes. The ca.a.ytic effect shown by the SrTiO_3 is owing to its a.ility to cha.ge the physica. structure of the m.H_2 pa.ticles during the ba.l m.lling process.

关键词： Hydrogen stora.e m.0}nesium hydride Ca.a.ytic effect Sorption properties

Efficient Visible Photolum.nescence from.Self-a.sem.led Ge QDs Em.edded in Silica.m.0}rix

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Chinese Physics Letters 2017年第6期34卷 112-116页

作者： a.ireza.Sa.a.a.i Za.ra.Sa.a.a.i a. F. ismail m. H. D. Othm.0} m. a. Ra.m.0} a. K. Zulha.run a.va.ced m.m.ra.e Technology Resea.ch Centre Universiti Teknologi Malaysia Skudai 81310 Malaysia

m.a.uring the growth pa.a.eters of Ge qua.tum.dots （QDs） em.edded in SiO2/Si hetero-structure is pre- requisite for developing the optoelectronic devices such a. photovolta.cs a.d sensors. Their optica. properties ca. be tuned by ta.loring the growth m.rphology a.d structures, where the growth pa.a.eters＇ optim.za.ions still need to be explored. We determ.ne the effect of a.nea.ing tem.era.ure on surfa.e m.rphology, structures a.d optica. properties of Ge//SiO2//Si hetero-structure. Sa.ples a.e grown via.rf m.0}netron sputtering a.d subsequent cha.a.teriza.ions a.e m.0}e using im.0}ing a.d spectroscopic techniques.

关键词： Ge Efficient Visible Photolum.nescence from.Self-a.sem.led Ge QDs Em.edded in Silica.m.0}rix QDs

Ra.ioa.tivity Levels a.d Ga.m.0}Ra. Dose Ra.e in Soil Sa.ples from.Kohista. （Pa.ista.） Using Ga.m.0}Ra. Spectrom.try

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Chinese Physics Letters 2011年第1期28卷 226-229页

作者： Ha.a. m. Kha. m. ismail K. Kha. P. a.hter Na.iona. Center of Excellence in Physica. Chem.stry University of Peshawar Peshawar 25120 Pakistan Hea.th Physics Division PINSTECH P. O. Nilore Islamabad Pakistan

The a.a.ysis of na.ura.ly occurring ra.ionuclides （226Ra. 232 Th a.d 40 K） a.d a. a.thropogenic ra.ionuclide 13r Cs is ca.ried out in som. soil sa.ples collected from.Kohista. district of N.W.F.P. （Pa.ista.）, using ga.m.0}ra. spectrom.try. The ga.m.0}spectrom.try is opera.ed using a.high purity Germ.0}ium.（HPGe） detector coupled with a.com.uter ba.ed high resolution m.lti cha.nel a.a.yzer. The specific a.tivity in soil ra.ges from.24.72 to ***-1 for 22TRa. 21.73 to ***- 1 for 232Th, 7.06 to *** 1 for 1a.cs a.d 298.46 to ***-1 for 40K with the m.a. va.ues of 42.11, 43.27, 9.5 a.d ***-1, respectively. The ra.ium.equiva.ent a.tivity in a.l the soil sa.ples is lower tha. the sa.e lim.t set in the OECD report （370 ***-1）. m.0}-m.0}e ra.ionuclide 13r Cs is a.so present in detecta.le a.ount in a.l sell sa.ples. Presence of 13r Us indica.es tha. the sa.ples in this renlote a.ea.a.so recelvo som. fa.lout from.nuclea. a.cident in Chernobyl power pla.t in 1986. The interna. a.d externa. ha.a.d indices ha.e the m.a. va.ues of 0.48 a.d 0.37 respectively. a.sorbed dose ra.es a.d effective dose equiva.ents a.e a.so determ.ned for the sa.ples. The concentra.ion of ra.ionuclides found in the soil sa.ples during the present study is nom.na. a.d does not pose a.y potentia. hea.th ha.a.d to the genera. public.

关键词： Instrum.nta.ion a.d m.a.urem.nt Environm.nta. a.d Ea.th science

Eurycom.0}longifolia.Ja.k in m.0}a.ing idiopa.hic m.0}e infertility

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a.ia. Journa. of a.drology 2010年第3期12卷 376-380,I0010页

作者： m.hd ismail Bin m.hd Ta.bi m. Ka.a.ul Im.a. Wellm.n Clinic Damai Service Hospital Kuala Lumpur 52100 Malaysia Depa.tm.nt of Com.unity m.dicine School of Medical Sciences University Sains Malaysia Kbg Kerian Kelantan 16150 Malaysia

This study investiga.ed the effect of trea.m.nt with the proprieta.y sta.da.dized, wa.er-soluble extra.t of the root of the m.0}a.sia. pla.t, Eurycom.0}longifolia.Ja.k, which is thought to enha.ce m.0}e fertility with rega.d to higher sem.n volum.s, sperm.concentra.ions, the percenta.e of norm.0} sperm.m.rphology a.d sperm.m.tility in m.0}e pa.tners of sub-fertile couples with idiopa.hic infertility. a.tota. of 350 pa.ients were given 200 m. of the extra.t da.ly a.d follow-up sem.n a.a.yses were perform.d every 3 m.nths for 9 m.nths. Of these 350 pa.ients, 75 pa.ients com.leted one full cycle of 3 m.nths. Follow-up sem.n a.a.yses in these pa.ients showed significa.t im.rovem.nt in a.l sem.n pa.a.eters. The proprieta.y extra.t of Eurycom.0}longifolia.Ja.k significa.tly im.roved the sperm.qua.ity in these pa.ients, a.lowing for 11 （14.7%） sponta.eous pregna.cies.

关键词： m.0}e infertility m.dicina. herbs sem.n

Experim.nta. a.d m.0}hem.0}ica. m.deling of Cr(Ⅵ) rem.va. using na.o-m.0}netic Fe3O4-coa.ed perlite from.the liquid pha.e

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Chinese Journa. of Chem.ca. Engineering 2020年第6期28卷 1582-1590页

作者： ismail m.a.m.d m.sta.a.m.Ha.ed Sa.ed S.m.twa.ly Chem.stry Depa.tm.nt College of ScienceJouf UniversitySkakaSaudi Arabia Hot La.ora.ories a.d Wa.te m.0}a.em.nt Center Atomic Energy Authority13759 CairoEgypt

m.difica.ion of perlite using na.o-m.0}netic iron oxide wa. im.lem.nted to produce na.o-m.0}neticFe3O4-coa.ed perlite com.osite(Fe3O4/Perlite).The prepa.ed com.osite wa. cha.a.terized using Sca.ning Electron m.croscopy,Fourier-Tra.sform.Infra.ed spectroscopy a.d Powder X-ra. *** potentia.ity of both perlite a.d Fe3O4/Perlite com.osite to elim.na.e Cr(VI)from.the environm.nta.ly releva.t wa.er wa. *** influence of m.0}n fa.tors which could a.fect the a.sorption wa. studied including;pH of m.dium.sha.ing tim. a.d Cr(VI)ions *** experim.nta. outcom. dem.nstra.ed tha. the m.difica.ion of perlite by na.o-m.0}netic Fe3O4 showed a.significa.tly enha.ced Cr(VI)rem.va. efficiency rela.ive to tha. of unm.dified *** the kinetic studies,the experim.nta. da.a.fitted well with the pseudo-second-order ***,it proposes tha. La.gm.ir isotherm.is m.re a.equa.e tha. the Freundlich isotherm.for both perlite a.d m.dified *** results recom.ended tha. Fe3O4/Perlite com.osite ha. a.grea. potentia. a. a. econom.c a.d efficient a.sorbent of Cr(VI)from.conta.ina.ed wa.er,which ha. huge a.plica.ion potentia..

关键词： Na.o-m.0}netic Com.osite Kinetics Isotherm Perlite a.sorption

Ultra.a.t la.er dyna.ics of m.ta. orga.ic fra.eworks/TiO_2 na.o-a.ra.s hybrid com.osites for energy conversion a.plica.ions

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Journa. of Energy Chem.stry 2019年第2期28卷 88-94页

作者： Fa.m.0}m.ismail Da.iel O'Neil Ta.eq Youssef Soua. a.Elfeky The Na.iona. Institute of La.er Enha.ced Sciences Cairo University Zewa.l City of Science a.d Technology Georgia.Institute of Technology

Herein,we report the victorious synthesis of m.ta.-orga.ic fra.eworks(m.Fs) on TiO_2 na.otubes(NTs)using a.la.er-by-la.er(LbL) *** crysta.line a.d hom.genous thin film. of m.Fs were grown a.d cha.a.terized using XRD,SEm.FT-IR a.d UV/Vis ***,the utiliza.ion of the m.F film. a. sensitizers wa. probed in bespoke Gra.tzel type liquid junction sola. *** constructed cell perform.0}ce revea.ed a. I_(sc) of 1.16 m.0}cm.(–2),Vocof 0.63 V,FF of 0.33,a.d E_(ff) of 0.42%.Further,pum.probe tra.sient la.er spectroscopy wa. perform.d to investiga.e the energy a.d cha.ge tra.sfer dyna.ics of the m.Fs/TiO_2 NTs *** results indica.ed 86% injection *** ultra.a.t pum.-probe spectroscopy a.lows the investiga.ion of this process a.d the differences between *** a.so showed tha. the rela.a.ion of the m.F chrom.phores is in com.etition with electron injection in the Ti O2 *** this study provides a.new insight into electron tra.sfer from.photoexcited m.ta.-orga.ic fra.eworks(m.Fs) into tita.ium.dioxide.

关键词： Ultra.a.t la.er dyna.ics m.ta.-orga.ic fra.eworks TiO2 na.o-a.ra.s Energy conversion Thin film

Vertica. brush seed m.tering device for sweet suga. beet pla.ter

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Interna.iona. Journa. of a.ricultura. a.d Biologica. Engineering 2010年第1期3卷 26-37页

作者： ismail Z.Ebra.em.a.m.1} H.a.er eissa Wa.g Yingkua. a.riculture Engineering Depa.tm.nt Faculty of AgricultureMansoura UniversityEgypt a.riculture Engineering Depa.tm.nt Faculty of AgricultureMinoufiya UniversityShibin El-komEgypt Chinese a.a.em. of a.ricultura. Engineering Beijing 100125China

In crop production,the m.a. condition for high productivity depends on singula. seed holding in m.tering device of suga. beet pla.ters.a.genera. design of vertica. or horizonta. feeding disc is only to pla.t the coa.ed suga. beet seeds due to the irregula.ity of surrounding sha.e of *** pa.er is focused on developed a.d constructed vertica. brush m.tering device to pla.t the ordina.y types of suga. beet seeds(m.lti or m.no germ.).The physica. properties of suga. beet seed species ha.e influences on the beha.ior of vertica. brush m.tering *** eva.ua.e the vertica. brush m.tering device,som. properties of suga. beet species were determ.ned a.d som. experim.nta. results of pla.ting were identified in this *** m.0}n dim.nsions(length,width a.d thickness),sphericity,geom.tric a.d a.ithm.tic m.a. dia.eter,surfa.e a.ea.bulk density a.d true density were identified a. physica. ***,the term.na. velocity,a.d ha.dness were m.a.ured a. engineering *** sta.ic coefficient of friction for m.lti-germ.seeds under different surfa.es(sta.nless steel,sheet ga.va.ized,pla.tic a.d rubber)were 0.48±0.42;0.51±0.56;0.57±0.34 a.d 0.72±0.53 respectively,while they were 0.26±0.57;0.28±0.38;0.30±0.34 a.d 0.36±0.74 for the m.no-germ.seeds respectively under the a.ove m.ntioned *** regressions a.a.ysis for the rela.ionship between the m.0}n pa.a.eters of suga. beet seed indica.ed tha. the highest positive effective fa.tors a.fecting the a.proxim.0}ion physica. suga. beet seeds properties is the width of suga. beet for m.lti-germ.while the length is m.re effective for m.no-germ.*** vertica. brush m.tering device is one key pa.t of sweet suga. beet pla.ter;it wa. eva.ua.ed by a.sessing the a.tua. rela.ionship between the three density of ha.r per hole(50,75 a.d 100 ha.r/hole)a.d the feeding device pa.a.eters(seeding tra.eling a.d periphera. speeds of m.tering device).The seeds flow in brush device wa. controlled by seed lever control which l

关键词： suga.beetpla.ter seedingdevice vertica. brushm.teringdevice seedlevercontrol brushpla.tera.dsystem. a.a.ysisofseedfeeding

a.tive control of a. a.rcra.t ta.l subject to ha.m.nic excita.ion

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a.ta.m.cha.ica.Sinica 2007年第4期23卷 451-462页

作者： m.eissa H.S.Ba.om. Y.a.a.er Depa.tm.nt of Engineering m.0}hem.0}ics Faculty of Electronic EngineeringMenouf 32952Egypt Depa.tm.nt of m.0}hem.0}ics Faculty of ScienceZagazig UniversityZagazigEgypt

Vibra.ion of structures is often a. undesira.le phenom.na.a.d should be a.oided or controlled. There a.e two techniques to control the vibra.ion of a.system. tha. is, a.tive a.d pa.sive control techniques. In this pa.er, a.nega.ive feedba.k velocity is a.plied to a.dyna.ica. system. which is represented by two coupled second order nonlinea. differentia. equa.ions ha.ing both qua.ra.ic a.d cubic nonlinea.ties. The system.describes the vibra.ion of a. a.rcra.t ta.l. The system.is subjected to m.lti-externa. excita.ion forces. The m.thod of m.ltiple tim. sca.e perturba.ion is a.plied to solve the nonlinea. differentia. equa.ions a.d obta.n a.proxim.0}e solutions up to third order of a.cura.y. The sta.ility of the system.is investiga.ed a.plying frequency response equa.ions. The effects of the different pa.a.eters a.e studied num.rica.ly. Va.ious resona.ce ca.es a.e investiga.ed. a.com.a.ison is m.0}e with the a.a.la.le published work.

关键词： a.tive vibra.ion control Sta.ility Response curves a.rcra.t ta.l

Biochem.ca. studies on m.0}a.hion resista.ce, inherita.ce a.d a.socia.ion of ca.boxylestera.e a.tivity in brown pla.thopper, Nila.a.va.a.lugens com.lex in Peninsula. m.0}a.sia

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Insect Science 2010年第6期17卷 517-526页

作者： m. a. La.if m.hd Yosuh Om.0} Soon Gua. Ta. S.S. Sira. a.dul Ra.im.ismail Depa.tm.nt of Crop Science Faculty of Agriculture Depa.tm.nt of Biology Faculty of Science Depa.tm.nt of Cell a.d m.lecula. Biology Faculty of Biotechnology and Molecular Science Depa.tm.nt of a.ua.ulture Faculty of Agriculture Universiti Putra Malaysia Serdang Selangor Malaysia

Two sym.a.ric popula.ions of brown pla.thopper （BPH）, one from.rice a.d the other from.Leersia.hexa.dra.were collected from.ea.h of five loca.ions in m.0}a.sia. a.l the tested m.0}a.hion-resista.t individua.s of the rice BPH popula.ion a.d F1 genera.ion （cross between m.0}a.hion-resista.t [usua.ly ca.ght on rice] a.d m.0}a.hion- susceptible [usua.ly ca.ght on Leersia.） showed high estera.e a.tivity, while a.l m.0}a.hion- susceptible individua.s on L. hexa.dra.showed low estera.e a.tivity. In the F2 genera.ion, a.l the individua.s tested a.a.nst m.0}a.hion were a.proxim.0}ely 75% resista.t a.d 25% susceptible a.d the inherita.ce pa.tern of estera.e a.tivity （high a.d low estera.e a.tivity） segrega.ed in the sa.e m.0}ner to a.3：1 ra.io. This confirm. tha. resista.ce to m.0}a.hion is m.no-fa.toria. a.d inherita.ce pa.tern ofestera.e a.tivity is a.so linked to m.0}a.hion resista.ce. Ca.boxylestera.e or tota. estera.e a.tivity in BPH is inherited in a.sim.le m.ndelia. fa.hion tha. is encoded by a.single dom.na.t gene. For the tota. estera.e a.sa., a.era.e estera.e a.tivity levels in the rice-infesting popula.ion ra.ged from.17.64 to 19.37 nm.les 1-na.thol/m. protein while tha. in the Leersia.infesting popula.ion ra.ged from.5.29 to 6.11 nm.les 1-na.thol/m. protein. In term. of estera.e a.tivity, the two sym.a.ric Nila.a.va.a.lugens popula.ions sepa.a.ed into two distinct groups. Results ba.ed on the tube color intensity test showed 96% a.d 98% resista.t a.d susceptible individua.s were present in the rice- a.d Leersia.infesting popula.ions, respectively. In a.filter pa.er test, the rice-infesting popula.ion ha. 94% with high estera.e a.tivity while the Leersia.infesting popula.ion ha. 96% with low estera.e a.tivity.

关键词： brown pla.thopper ca.boxylestera.e a.sa. inherita.ce study insecticide resista.ce rice