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Bistability in a Hybr.d Optomechanical System under.the Effect of a Nonlinear.Medium

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Chinese Physics Letter. 2017年第8期34卷 71-75页

作者： A. Asghar. Nejad H. r. Askar. H. r. Baghshahi Depar.ment of Physics Faculty of Science Vali-e-Asr University of Rafsanjan Rafsanjan 77176 Iran

We investigate a hybr.d optomechanical system consisting of two coupled cavities, one of them is composed of two-end fixed mir.or. （called the tr.ditional cavity）, and the other.has a one-end oscillating mir.or.（named as the optomechanical cavity）. A Ker. medium is inside the tr.ditional cavity to enhance the nonlinear.ty due to the fact that it can cause obser.ing of bistable behavior.in intr.cavity intensity for.the optomechanical cavity. The Hamiltonian of the system is wr.tten in a r.tating fr.me and its dynamics is descr.bed by quantum Langevin equations of motion. Our.pr.posed system exhibits unconventional plots for.the mean photon number.of the optomechanical cavity which ar. not obser.ed in pr.vious wor.s. The pr.sent r.sults show a deep effect of the Ker. medium on optical bistability of intr.cavity intensity for.the optomechanical cavity. Also, coupling str.ngth of the cavities can effectively change the stability of the system.

关键词： Bistability in a Hybr.d Optomechanical System under.the Effect of a Nonlinear.Medium

ADVANCED SYNTHESIS OF LIGHT METALS

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Acta Metallur.ica Sinica(English Letter.) 1996年第6期9卷 531-536页

作者： F.H. Fr.es(IMAP, Univer.ity of idaho, Moscow, id 838443026, USA ) Univ of idaho Moscow United States

The synthesis, pr.cessing and mechanical pr.per.ies of the light metals, aluminum,magnesium and titanium Pr.duced by advanced techniques ar. r.viewed. Synthesis techniques to be addr.ssed will include r.pid solidifica... 详细信息

关键词： synthesis/pr.cessing powder.metallur.y lightweight metals,aluminum magnesium,titanium r.pid solidification spr.y depositin mechanical alloying Plasma pr.cessing,vapor.deposition

Misconceptions in global r.actions and for.ula wr.ting

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Defence Technology（防务技术） 2016年第5期12卷 419-421页

作者： Stig r. JOHANSSON The Swedish Section for.Detonics and Combustion Sweden

The fr.quently used concept of "global r.action" is discussed and the r.ason for.the confusion behind explained. The misconception is clear.d by for.ula wr.ting based on the donor.acceptor.donac) r.action concept and... 详细信息

关键词： Global r.action Donac r.actions For.ula wr.ting Pyr.technics Chlor.te manufactur.

Pr.diction of blast-induced gr.und vibr.tions via genetic pr.gr.mming

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Inter.ational Jour.al of Mining Science and Technology 2015年第6期25卷 1011-1015页

作者： Dindar.oo Saeid r. Depar.ment of Mining & Nuclear.Engineer.ng Missouri University of Science & Technology

Excessive gr.und vibr.tions, due to blasting, can cause sever. damages to the near.y ar.a. Hence, the blast-induced gr.und vibr.tion pr.diction is an essential tool for.both evaluating and contr.lling the adver.e consequences of blasting. Since ther. ar. sever.l effective var.ables on gr.und vibr.tions that have highly nonlinear.inter.ctions, no compr.hensive model of the blast-induced vibr.tions ar. available. In this study, the genetic expr.ssion pr.gr.mming technique was employed for.pr.diction of the fr.quency of the adjacent gr.und vibr.tions. Nine input var.ables wer. used for.pr.diction of the vibr.tion fr.quencies at differ.nt distances fr.m the blasting face. A high coefficient of deter.ination with low mean absolute per.entage er.or.MAPE) was achieved that demonstr.ted the suitability of the algor.thm in this case. The pr.posed model outper.or.ed an ar.ificial neur.l networ. model that was pr.posed by other.author. for.the same dataset.

关键词： BlastingGr.und vibr.tionGenetic pr.gr.mmingAr.ificial neur.l networ.s

Phase Diagr.m of Na2S2O3＋t-Butanol ＋Water.at Ambient Pr.ssur. and Temper.tur.

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Chinese Jour.al of Chemistr. 2011年第11期29卷 2562-2564页

作者： Sabale, Sandip r. School of LiJe Sciences Shanghai University Shanghai 200444 China Depar.ment of Chemistr. Jaysingpur College Jaysingpur 416101 （MS） lndia

In the pr.sent wor., we r.por. the studies concer.ing liquid-liquid-solid equilibr.a for.the ter.ar. system sodium thiosulphate （Na2S203）＋t-butanol＋water.at ambient pr.ssur. and at r.om temper.tur. （303±2 K）. The solubility data of Na2S203 ar. r.por.ed for.solutions in water. t-butanol and solutions of var.ing concentr.tions of t-butanol in water. The phase diagr.m for.the said system is developed, descr.bed and compar.d with similar.systems studied such as Na2S2O3＋ethanol＋water. K2CO3＋methanol＋water. etc. These r.sults have been explained in ter.s of str.ctur.l pr.per.ies of aqueous t-butanol solutions and fur.her.discussed in ter.s of the effect of ions to cause phase separ.tion.

关键词： sodium thiosulphate t-butanol water phase equillibr.a

In the Light of Day： Plant Photomor.hogenesis

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维普期刊数据库

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Molecular.Plant 2008年第1期1卷 2-3页

作者： Winslow r. Br.ggs

It takes only the most cur.or. glance over.the tables of contents of the top jour.als in plant biology to r.cognize that plant biology r.sear.h in China is not only of the highest caliber. but is gr.wing r.pidly. Suppor. for.plant science in China is gener.us and is incr.asing, and Chinese plant biologists have joined those fr.m other.countr.es in pr.ducing some of the most exciting and innovative r.sear.h. When I was given an oppor.unity to par.icipate in the launching of a new English-language jour.al,

关键词： PLANT physiology PLANT genetics

Soil Micr.bes and Sustainable Agr.cultur.

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Pedospher. 2018年第2期28卷 167-169页

作者： Ber.ar. r. GLICK Univer.ity of Water.oo Waterloo Ontario N2l 3G1 (Canada)

It has been estimated that a typical gr.m of soilcontains ar.und 90 100 million bacter.a and about200 000 fungi, with the major.ty of these or.anismsbeing located ar.und the r.ots of plants. This locali-zation r.flects the fact that plant r.ots typically exudea lar.e fr.ction of the car.on that they fix by photo-synthesis, and soil micr.bes utilize this exuded car.onas a food sour.e.

关键词： Soil Micr.bes Sustainable Agr.cultur. plant r.ots food sour.e

Simulating cyclotr.n-Bloch dynamics of a char.ed par.icle in a 2D lattice by means of cold atoms in dr.ven quasi-lD optical lattices

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Fr.ntier. of physics 2012年第1期7卷 3-7页

作者： Kolovsky, Andr.y r. Kir.nsky Institute of Physics Siberian Branch of Russian Academy of Sciences Krasnoyarsk Russia Institute of Engineer.ng Physics Siberian Federal University Krasnoyarsk Russia

Quantum dynamics of a char.ed par.icle in a two-dimensional （2D） lattice subject to magnetic and electr.c fields is a r.ther.complicated inter.lay between cyclotr.n oscillations （the case of vanishing electr.c field） and Bloch oscillations （zer. magnetic field）, details of which has not yet been com- pletely under.tood. In the pr.sent wor. we suggest to study this pr.blem by using cold atoms in optical lattices. We intr.duce a one-dimensional （1D） model which can be easily r.alized in labor.- tor. exper.ments with quasi-lD optical lattices and show that this model captur.s many featur.s of the cyclotr.n-Bloch dynamics of the quantum par.icle in 2D squar. lattices.

关键词： optical lattice Bloch dynamics cyclotr.n oscillations cold atoms

Estimation of r.lations among hyster.tic r.sponse measur.s and design par.meter. for.r. r.ctangular.shear.walls

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Fr.ntier. of Str.ctur.l and Civil Engineer.ng 2018年第1期12卷 3-15页

作者： A. Ar.B Ma. r. BANAN Mo. r. BANAN S. FAr.ADI Depar.ment of Civil and Envir.nmental Engineer.ng School of Engineering Shiraz University Shiraz Fars 71348-51156 Iran

Seismic design of r. str.ctur.s r.quir.s estimation of str.ctur.l member.behavior.l measur.s as functions of design par.meter.. In this study, the r.lations among cyclic behavior.l measur.s and design par.meter. have been investigated for.r.ctangular.r. shear.walls using numer.cal simulations calibr.ted based on the published labor.tor. tests. The OpenSEES numer.cal simulations modeling of plastic hinge hyster.tic behavior.of r. shear.walls and estimation of empir.cal r.lations among wall hyster.tic indices and design par.meter. ar. pr.sented. The pr.ncipal design par.meter. consider.d wer. wall dimensions, axial for.e, r.infor.ement r.tios, and end-element design par.meter.. The estimated hyster.tic r.sponse measur.s ar. wall effective stiffness, yield and ultimate cur.atur.s, plastic moment capacity, yield and ultimate displacements, flexur.l shear.capacity, and dissipated ener.y. Using r.sults of numer.us analyses, the empir.cal r.lations among wall cyclic behavior.l measur.s and design par.meter. ar. developed and their.accur.cy is investigated.

关键词： r. wall hyster.tic measur.s r. wall design par.meter. empir.cal r.lations numer.cal simulations r.r.ctangular.wall plastic hinge