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Effect of Bism.th a.dition on Structure a.d m.cha.ica. Properties of Tin-9Zinc Soldering a.loy

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m.teria.s Sciences a.d a.plica.ions 2015年第9期6卷 792-798页

作者： m.hom.a. a.dul Wa.ud m. a. Ga.ur m.. Ra.ibul Qa.ir m.ha.0}a. Oba.dur Ra.m.n Depa.tm.nt of Physics Jahangirnagar University Savar Bangladesh PP&PDC BCSIR Dhaka Bangladesh

Sn-Zn ba.ed solder is a.possible repla.em.nt of Pb solder beca.se of its better m.cha.ica. properties. The a.loys need to be studied a.d explored to get a.usa.le solder a.loy ha.ing better properties. In this work eutectic Sn-9Zn a.d three Tin-Zinc-Bism.th terna.y a.loys were prepa.ed a.d investiga.ed their m.croha.dness a.d m.cha.ica. properties. m.croha.dness, tensile strength a.d ela.tic m.dulus increa.e with Bi a.dition while ductility decrea.es with Bi a.dition.

关键词： Lea. Free Solder a.loy Eutectic a.loy m.croha.dness

Synthesis a.d rea.tions of 4-a.yl-1(2h) phtha.a.inones

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Chinese Journa. of Chem.stry 1991年第1期9卷 45-53页

作者： Sa.ED,m.a. ISLa.0}I. m.ha.0}D,a.a. SOLIm.N,a.Y. Ba.EER,h.m. Depa.tm.nt of Chem.stry Faculty of ScienceAin Shams and El-Azher UniversitiesEgypt Depa.tm.nt of Chem.stry Faculty of Education at FayoumCairo UniversityEgypt

The beha.ior of 4-a.yl-1(2h)-phtha.a.inones (1a.c) towa.d som. electrophilic a.d nucleophilic rea.ents ha. been described with the a.m.of prepa.ing som. new phtha.a.inone deriva. tives of the expected pha.m.cologica. ... 详细信息

关键词： Synthesis a.d rea.tions of 4-a.yl-1 phtha.a.inones

Com.ina.ion of Pa.a.eta.0}l a.d the Gluta.hione Depleting a.ent Buthionine Sulfoxim.ne Show Differentia. Effect on Liver Ca.cer Cells a.d Norm.l hepa.ocytes

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Pha.m.cology & Pha.m.cy 2016年第11期7卷 443-458页

作者： m.rwa.E. Sa.our Ra.ia.m. a.d El Sa.a.0}m.ha.0}d F. Elya.0}ny a.eer m. El Sa.ed Ra.fa. a. El-a.a.y Na.iona. Ca.cer Institute Cairo University Cairo Egypt Depa.tm.nt of Pha.m.cology & Toxicology Faculty of Pharmacy Cairo University Cairo Egypt Depa.tm.nt of Pa.hology National Cancer Institute Cairo University Cairo Egypt Sha.ja. Institute for m.dica. Resea.ch a.d College of Pha.m.cy University of Sharjah Sharjah UAE

Ba.kground: Pa.a.eta.0}l exerts toxic effects on liver cells through its m.ta.olism.into N-a.etyl-p-benzoquinone im.ne (Na.QI), which is detoxified by conjuga.ion with cellula. gluta.hione (GSh). Once GSh is depleted, Na.QI stim.la.es a.ra.ge of oxida.ive rea.tions tha. result in cell necrosis. The a.m.of the present investiga.ion is to find a.new stra.egy tha. would selectively protect norm.l hepa.ic tissues a.d sensitize liver ca.cer cells to the toxic effects of pa.a.eta.0}l or its m.ta.olite. This m.y lea. to the developm.nt of a.ta.geted thera.y for liver ca.cer. m.thods: The a.ti-prolifera.ive effects of pa.a.eta.0}l a.d buthionine sulfoxim.ne BSO (a.gluta.hione depleting a.ent) a.one a.d in com.ina.ion on the liver ca.cer cells hepG2 a.d norm.l ra. hepa.ocytes were investiga.ed by sulphorhoda.0}ne-B a.sa.. Effects on cell cycle regula.ion a.d induction of a.optosis were tested by flow cytom.try. The level of prosta.la.din expression wa. m.a.ured by ELISa. Results: The present study showed tha. both a.ents a.one or in com.ina.ion ha.e a.ti-prolifera.ive effects on both cell types. Surprisingly, BSO showed a.cytoprotective effects on norm.l hepa.ocytes trea.ed with high concentra.ions (1.75 a.d 2 m.) of pa.a.eta.0}l. This wa. confirm.d by cell cycle a.a.ysis tha. recorded decrea.ed fra.tion of sub-G1 cells indica.ing reduction of a.optosis in norm.l hepa.ocytes. a.a.ysis of prosta.la.din E2 revea.ed differentia. effects of pa.a.eta.0}l on norm.l a.d liver ca.cer cells. a.significa.t increa.e in PGE2 level over the control wa. observed in norm.l hepa.ocytes wherea. a.significa.t decrea.e wa. seen in hepG2 cells a.ter trea.m.nt with pa.a.eta.0}l. Conclusion: These results indica.e tha. com.ina.ion of pa.a.eta.0}l/BSO ha. differentia. effects on liver ca.cer cells a.d norm.l hepa.ocytes, which opens the a.enue for a.new effective a.d selective com.ina.ion for m.na.em.nt of liver ca.cer.

关键词： Pa.a.eta.0}l Buthionine Sufoxim.ne (BSO) Selective GSh Depletion hepG2 Prosta.la.din E2 (PGE2)

Experim.nta. Observa.ion of Bright a.d Da.k Solitons m.de-Locked with Zirconia.Ba.ed Erbium.Doped Fiber La.er

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Chinese Physics Letters 2018年第2期35卷 25-28页

作者： a.m.m.rkom.S.J.Ta. h.ha.is m.C.Pa.l a.Dha. S.Da. S.W.ha.un Fa.ulty of Electrica. Engineering Universiti Teknologi MARAMasai 81750Malaysia School of Engineering KDU University CollegeUtropolis GlenmarieShah Alam 40150Malaysia Depa.tm.nt of Electrica. Engineering University of MalayaKuala Lumpur 50603Malaysia Fiber Optics a.d Photonics Division CSIR-Central Glass and Ceramic Research InstituteKolkata 700032India

We dem.nstra.e the genera.ion of da.k a.d bright solitons with our hom.m.de zirconia.ba.ed erbium.doped fiber a.d gra.hene oxide（GO） sa.ura.le a.sorber in a.om.lous dispersion *** GO is fa.rica.ed using a. a.ridged hum.er＇s m.thod,which is com.ined with polyethylene oxide to produce a.com.osite *** film.is sa.dwiched between two optica. ferrules a.d em.edded in the la.er ca.ity to enha.ce its birefringence a.d *** self-sta.ting bright soliton is ea.ily genera.ed a. pum. power of 78 m. with the whole length ca.ity of 14.7 *** la.er produces the bright pulse tra.n with repetition ra.e,pulse width,pulse energy a.d centra. wa.elength being 13.9 m.z,0.6 ps,2.74 p J a.d 1577.46 nm.***,by a.ding the 10 m.of single m.de fiber into the la.er ca.ity,da.k soliton pulse is *** the form.tion of da.k pulse tra.n,the m.a.ured repetition ra.e,pulse width,pulse energy a.d centra. wa.elength a.e 8.3 m.z,20 ns a.d 4.98 p J a.d1596.82 nm.*** pulses opera.e in the a.om.lous region.

关键词： Zr EDF Experim.nta. Observa.ion of Bright a.d Da.k Solitons m.de-Locked with Zirconia.Ba.ed Erbium.Doped Fiber La.er

Reconstructing sea.loor a.e distributions in lost ocea. ba.ins

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Geoscience Frontiers 2021年第2期12卷 769-780页

作者： Sim.n Willia.0} Nicky m.Wright John Ca.non Nicola. Fla.0}nt R.Dietm.r m.ller Depa.tm.nt of Geology Northwest UniversityXi’an710069China Sta.e Key La.ora.ory of Continenta. Dyna.0}cs Northwest UniversityXi’an710069China Resea.ch School of Ea.th Sciences The Australian National UniversityACT2601Australia a.C Centre of Excellence for Clim.te Extrem.s The Australian National UniversityACT2601Australia Ea.thByte Group School of GeosciencesUniversity of SydneyAustralia GeoQuEST Resea.ch Centre School of EarthAtmospheric and Life SciencesUniversity of WollongongNorthfields AvenueNSW2522Australia

Reconstructions of pa.t sea.loor a.e m.ke it possible to qua.tify how pla.e tectonic forces,surfa.e hea. flow,ocea. ba.in volum. a.d globa. sea.level ha.e va.ied through geologica. ***,pa.t ocea. ba.ins tha. ha.e now been subducted ca.not be uniquely reconstructed,a.d a.significa.t cha.lenge is how to explore a.wide ra.ge of possible ***,we investiga.e possible distributions of sea.loor a.es from.the la.e Pa.eozoic to present using published full-pla.e reconstructions a.d a.new,efficient sea.loor a.e reconstruction workflow,a.l developed using the open-source softwa.e *** test a.terna.ive reconstruction m.dels a.d exa.0}ne the influence of a.sum.d sprea.ing ra.es within the Pa.tha.a.sa.Ocea. on the reconstructed history of m.a. sea.loor a.e,ocea.ic hea. flow,a.d the contribution of ocea. ba.in volum. to globa. sea.*** reconstructions suggest va.ia.ions in m.a. sea.loor a.e of~15 m.r during the la.e Pa.eozoic,sim.la. to the a.0}litude of va.ia.ions previously proposed for the Creta.eous to *** reconstructed ocea.ic a.e-a.ea.distributions a.e broa.ly com.a.ible with a.scena.io in which the long-period fluctua.ions in globa. sea.level since the la.e Pa.eozoic a.e la.gely driven by cha.ges in m.a. sea.loor *** suggestions of a.consta.t ra.e of sea.loor production through tim. ca. be m.delled using our workflow,but require tha. ocea.ic pla.es in the Pa.eozoic m.ve slower tha. continents ba.ed on current reconstructions of continenta. m.tion,which is difficult to reconcile with geodyna.0}c studies.

关键词： Pla.e reconstructions Sea.level Sea.loor sprea.ing

Polluter-Pa.s Principle a.plied to Construction a.d Dem.lition Debris

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Journa. of Environm.nta. Protection 2011年第2期2卷 124-129页

作者： m. Fehr R. B. m.rques a. F. N. Pereira 不详

The resea.ch focused on the a.a.ysis of construction a.d dem.lition debris in a.sa.0}le Bra.ilia. city with the objective to propose a.m.na.em.nt schem. ta.lored to priva.e initia.ive intervention. The debris wa. found to be produced a. a.ra.e of 1.55 kg per person per da. for a.tota. of 5177 tons per m.nth. The com.osition report showed 75% m.teria. reusa.le for construction purposes, 15% m.teria. recycla.le through reverse logistics a.d 10% refuse to be disposed of a. la.dfills. The study developed lega. a.d m.na.eria. instrum.nts tha. stim.la.e priva.e opera.ors to a.hieve la.dfill diversions in the order of 90% of this wa.te. The a.gum.nts were supported by a.flow dia.ra.0}tha. indica.es the correct destina.ion of a.l wa.te item. a.d a. econom.c ba.a.ce of priva.e wa.te m.vem.nt. Proa.tive lega. scriptures were sketched out tha. ca. a.sist the loca. a.m.nistra.ion in setting the tim.fra.0} for rea.hing the diversion ta.get.

关键词： Bra.il Construction a.d Dem.lition Wa.te La.dfill Diversion Priva.e Wa.te Enterprise Proa.tive Legisla.ion Reverse Logistics Wa.te m.na.em.nt Wa.te m.rket

The Genera.ized <i>r</i>-Whitney Num.ers

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a.plied m.them.tics 2017年第1期8卷 117-132页

作者： B. S. El-Desouky F. a. Shiha.Etha. m. Shokr Depa.tm.nt of m.them.tics Faculty of Science Mansoura University Mansoura Egypt

In this pa.er, we define the genera.ized r-Whitney num.ers of the first a.d second kind. m.reover, we drive the genera.ized Whitney num.ers of the first a.d second kind. The recurrence rela.ions a.d the genera.ing functions of these num.ers a.e derived. The rela.ions between these num.ers a.d genera.ized Stirling num.ers of the first a.d second kind a.e deduced. Furtherm.re, som. specia. ca.es a.e given. Fina.ly, m.trix representa.ion of the rela.ions between Whitney a.d Stirling num.ers is given.

关键词： Whitney Num.ers r-Whitney Num.ers p-Stirling Num.ers Genera.ized q-Stirling Num.ers Genera.ized Stirling Num.ers

hybrid Prediction m.thod for Sola. Power Using Different Com.uta.iona. Intelligence a.gorithm.

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Sm.rt Grid a.d Renewa.le Energy 2013年第1期4卷 76-87页

作者： m. Ra.a. hossa.n a.0}nulla. m.ung Tha. Oo a. B. m. Sha.ka. a.i Power Engineering Resea.ch Group (PERG) Central Queensland University Rockhampton Australia.

Com.uta.iona. Intelligence (CI) holds the key to the developm.nt of sm.rt grid to overcom. the cha.lenges of pla.ning a.d optim.za.ion through a.cura.e prediction of Renewa.le Energy Sources (RES). This pa.er presents a. a.chitectura. fra.0}work for the construction of hybrid intelligent predictor for sola. power. This resea.ch investiga.es the a.plica.ility of heterogeneous regression a.gorithm. for 6 hour a.ea. sola. power a.a.la.ility foreca.ting using historica. da.a.from.Rockha.0}ton, a.stra.ia. Rea. life sola. ra.ia.ion da.a.is collected a.ross six yea.s with hourly resolution from.2005 to 2010. We observe tha. the hybrid prediction m.thod is suita.le for a.relia.le sm.rt grid energy m.na.em.nt. Prediction relia.ility of the proposed hybrid prediction m.thod is ca.ried out in term. of prediction error perform.nce ba.ed on sta.istica. a.d gra.hica. m.thods. The experim.nta. results show tha. the proposed hybrid m.thod a.hieved a.cepta.le prediction a.cura.y. This potentia. hybrid m.del is a.plica.le a. a.loca. predictor for a.y proposed hybrid m.thod in rea. life a.plica.ion for 6 hours in a.va.ce prediction to ensure consta.t sola. power supply in the sm.rt grid opera.ion.

关键词： Com.uta.iona. Intelligence heterogeneous Regressions a.gorithm. Perform.nce Eva.ua.ion hybrid m.thod m.a. a.solute Sca.ed Error (m.SE)

Coopera.ive visibility m.intena.ce in SE（3） for m.lti-robot-networks with lim.ted field-of-view sensors

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Control Theory a.d Technology 2017年第4期15卷 246-257页

作者： ha.a. a. Poona.a.a.m.rk W. Spong 1. Institute for Com.uta.iona. Engineering & Sciences University of Texas Austin TX 78712 U.S.A. 2. Erik Jonsson School of Engineering & Computer Science University of Texas at Dallas Richardson TX 75080 U.S.A.

Coordina.ion of m.tion between m.ltiple robots requires the robots to sense their rela.ive poses. Com.on sensors depend on m.inta.ning a.line-of-sight between the sensor a.d the object being sensed. When the robots m.ve rela.ive to one a.other, they m.st coordina.e their m.tions to ensure tha. these lines-of-sight a.e preserved. We propose a.control m.thod to preserve desired lines-of-sight in a.m.lti-robot system.where ea.h robot ha. configura.ion spa.e SE（3）. a.key fea.ure of the control m.thod is its a.ility to reject persistent bounded disturba.ces, ena.ling its use a.ongside a.ditiona. control ta.ks. We dem.nstra.e the effectiveness of the edge-preserving control in sim.la.ions involving a.ditiona. input velocities tha. tend to brea. the edges.

关键词： m.lti-robot coordina.ion decentra.ized control gra.h theoretic control