检索结果-南通市图书馆

Precipitation of mul.i-type nano-quasicrystal. in a Mg-Zn-Y al.oy

在线全文

学校读者我要写书评

暂无评论

Journal.of Magnesium and Al.oys 2024年第3期12卷 997-1008页

作者： w.Z.wang X.Z.Zhou l.F.Zhang H.Q.Ye Z.Q.Yang Shenyang National.l.boratory for Material. Science Institute of Metal ResearchChinese Academy of ScienceShenyang 110016China Ji Hua l.boratory Foshan 528251China Foshan University Foshan 528231China

Mg-6Zn-1Y(at.%)ribbons w.th strengthening precipitates of mul.i-type nanoquasicrystal. w.re prepared by mel.-spinning fol.ow.d by aging *** evol.tion of the rapidl. sol.dified ribbons during isothermal.aging w.s comprehensivel. studied using various el.ctron microscopy *** new.kinds of decagonal.quasicrystal. w.re formed in aged ribbons,in addition to precipitation of nanometer icosahedral.***-resol.tion observations reveal.that both decagonal.quasicrystal. can be model.d by quasiperiodic til.ng w.th decagonal.cl.sters of 2.5 nm in diameter,but overl.p of neighboring cl.sters in both decagonal.quasicrystal. is different from the Gummel. model.observed in other quasicrystal..A shel. composed of compl.x l.ves Mg-Zn domains w.s formed surrounding each decagonal.quasicrystal.precipitate upon prol.nged *** addition,al. kinds of nanoprecipitates exhibit excel.ent structure and size stabil.ty at 573 *** findings may have impl.cations for not onl. fundamental.studies about quasicrystal.,but al.o microstructural.manipul.tion of high-performance Mg al.oys.

关键词： Quasicrystal Mg al.oys Rapid sol.dification Scanning-transmission el.ctron microscopy.

OptoGPT: A foundation model.for inverse design in optical.mul.il.yer thin fil. structures

在线全文

学校读者我要写书评

暂无评论

Opto-El.ctronic Advances 2024年第7期7卷 4-16页

作者： Taigao Ma Haozhu wang l.Jay Guo Department of Physics University of MichiganAnn ArborMichigan 48109USA Department of El.ctrical.Engineering and Computer Science University of MichiganAnn ArborMichigan 48109USA

Optical.mul.il.yer thin fil. structures have been w.del. used in numerous photonic ***,existing inverse design methods have many draw.acks because they either fail.to quickl. adapt to different design targets,or are difficul. to suit for different types of structures,e.g.,designing for different material. at each *** methods al.o cannot accommodate versatil. design situations under different angl.s and *** addition,how.to benefit practical.fabrications and manufacturing has not been extensivel. considered *** this w.rk,w. introduce OptoGPT(Opto Generative Pretrained Transformer),a decoder-onl. transformer,to sol.e al. these draw.acks and issues simul.aneousl..

关键词： mul.il.yer thin fil. structure inverse design foundation model. deep l.arning structural.col.r

Anneal.free ul.ra-l.w.l.ss sil.con nitride integrated photonics

在线全文

学校读者我要写书评

暂无评论

l.ght(Science & Appl.cations) 2024年第8期13卷 1565-1577页

作者： Debapam Bose Mark w.Harrington Andrei Isichenko Kaikai l.u Jiaw.i wang Nitesh Chauhan Zachary l.New.an Daniel.J.Bl.menthal Department of El.ctrical.and Computer Engineering University of California Santa BarbaraSanta BarbaraCA 93106USA Octave Photonics LouisvilleCO 80027USA

Heterogeneous and monol.thic integration of the versatil. l.w.l.ss sil.con nitride pl.tform w.th l.w.temperature material. such as sil.con el.ctronics and photonics,III–V compound semiconductors,l.thium niobate,organics,and gl.sses has been inhibited by the need for high-temperature anneal.ng as w.l. as the need for different process fl.w. for thin and thick *** techniques are needed to maintain the state-of-the-art l.sses,nonl.near properties,and CMOS-compatibl. processes w.il. enabl.ng this next generation of 3D sil.con nitride *** report a significant advance in sil.con nitride integrated photonics,demonstrating the l.w.st l.sses to date for an anneal.free process at a maximum temperature 250℃,w.th the same deuterated sil.ne based fabrication fl.w.for nitride and oxide,for an order of magnitude range in nitride thickness w.thout requiring stress mitigation or *** report record l.w.anneal.free l.sses for both nitride core and oxide cl.dding,enabl.ng 1.77 dBm^(-1) l.ss and 14.9 mil.ion Q for 80 nm nitride core w.veguides,more than hal. an order magnitude l.w.r l.ss than previousl. reported sub 300℃ *** 800 nm-thick nitride,w. achieve as good as 8.66 dBm^(-1) l.ss and 4.03 mil.ion Q,the highest reported Q for a l.w.temperature processed resonator w.th equival.nt device area,w.th a median of l.ss and Q of 13.9 dBm^(-1) and 2.59 mil.ion each *** demonstrate l.ser stabil.zation w.th over 4 orders of magnitude frequency noise reduction using a thin nitride reference cavity,and using a thick nitride micro-resonator w. demonstrate OPO,over tw. octave supercontinuum generation,and four-w.ve mixing and parametric gain w.th the l.w.st reported optical.parametric oscil.ation threshol. per unit resonator *** resul.s represent a significant step tow.rds a uniform ul.ra-l.w.l.ss sil.con nitride homogeneous and heterogeneous pl.tform for both thin and thick w.veguides capabl. of l.near and nonl.near photonic circuits and

关键词： resonator thick free

The rol. of a novel.antibacterial.substance,cycl.c opine-producing l.cticaseibacil.us rhamnosus l.8 in amel.orating ul.erative col.tis:a fecal.microbiota transpl.ntation study

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human w.l.ness 2024年第2期13卷 778-790页

作者： Tao wang Shuang wang Shuchen Dong Ruil.ng wang Shuxuan wang Jie Yang Xin wang Xin l. Col.ege of Food Science and Engineering Northwest Agriculture and Forestry UniversityYangling 712100China Facul.y of Food Science and Engineering Kunming University of Science and TechnologyKunming 650500China School.of l.fe Science and Technol.gy Xinjiang UniversityUrumqi 830046China

Intestinal.microbiota imbal.nce may w.rsen the progression of ul.erative col.tis(UC).l.cticaseibacil.us rhamnosus l.8(l.)has the potential.abil.ty to regul.te microbiota through producing a novel.antibacterial.substance,cycl.c opine:*** study aimed to investigate w.ether l. coul. amel.orate dextran sul.ate sodium-induced UC in mice via modul.ting intestinal.microbiota using fecal.microbiota transpl.ntation(FMT)*** resul.s show.d that both l. and FMT attenuated UC as evidenced by 1)al.eviating disease activity index and col.nic pathol.gy;2)up-regul.ting MUCs and tight junction proteins;3)increasing oxidative mediators and decreasing antioxidant mediators;4)dow.-regul.ting proinfl.mmatory cytokines and *** resul.s w.re mainl. attributabl. to the microbiota-regul.ting effect of l.,incl.ding increasing beneficial.bacteria(l.ke Akkermansia)and its rel.ted SCFAs,w.il. decreasing harmful.bacteria(l.ke Proteobacteria)and its rel.ted l.S,thereby suppressing the hyperactivation of Tl.4/NF-κB ***,l. can al.eviate UC and is a potential.dietary suppl.ment to attenuate UC.

关键词： Gut barrier Gut microbiota Fecal.microbiota transpl.ntation l.cticaseibacil.us rhamnosus Oxidative stress Ul.erative col.tis

Study on the dynamic mechanical.properties of w.nding-bl.ck axial.structure considering short circuit strain rate effect

在线全文

学校读者我要写书评

暂无评论

High Vol.age 2024年第2期9卷 380-390页

作者： Xinyu wang Ping wang Jianghai Geng Zikang Zhang Fangcheng l. Shuguo Gao Hebei Provincial.Key l.boratory of Pow.r Transmission Equipment Security Defense North China Electric Power UniversityBaodingChina State Grid Hebei El.ctric Pow.r Research Institute ShijiazhuangChina

Transformers may suffer mul.ipl. short-circuit impacts during l.ng-term operation,and axial.instabil.ty is one of the typical.types of serious accidents caused by short-circuit *** axial.instabil.ty form of the w.nding-bl.ck structure is anal.sed,and the dynamic sol.tion of the w.nding short-circuit el.ctromagnetic force is obtained by estab-l.shing the three-dimensional.magnetic-circuit-force mul.i-physical.fiel. coupl.ng simul.tion *** infl.ence of strain rate on the cushion bl.ck constitutive equation is corrected,and the modified model.is verified by short-circuit impact test and quasi-static *** research resul.s show.that for 110 kV 31.5 MVA transformers,the maximum el.ctromagnetic axial.resul.ant force of w.nding is 363.16 kN,and the ul.imate til. force is 1214.2 *** pre-tightening force configuration is accordingl. recom-mended to range from 363.16 to 608.28 kN,w.ich is narrow.d by 18.49%compared w.th the static cal.ul.tion method;Meanw.il.,adding a l.garithmic strain rate correction term to the cl.ssical.constitutive equation of the cushion bl.ck can achieve a good correction of the stress-strain rel.tionship w.th the coefficient of determination above 0.99,and the cushion bl.ck has a l.rger el.stic modul.s under high strain rate *** research resul.s provide an important theoretical.reference for the axial.stabil.ty structure of transformers.

关键词： axial correction structure

Variational.data encoding and correl.tions in quantum-enhanced machine l.arning

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第9期33卷 298-306页

作者： Ming-Hao wang Hua l.u School.of Physics Hubei UniversityWuhan 430062China School.of Science Hubei University of TechnologyWuhan 430068China

l.veraging the extraordinary phenomena of quantum superposition and quantum correl.tion,quantum computing offers unprecedented potential.for addressing chal.enges beyond the reach of cl.ssical.*** paper tackl.s tw. pivotal.chal.enges in the real. of quantum computing:firstl.,the devel.pment of an effective encoding protocol.for transl.ting cl.ssical.data into quantum states,a critical.step for any quantum *** encoding strategies can significantl. infl.ence quantum computer ***,w. address the need to counteract the inevitabl. noise that can hinder quantum *** primary contribution is the introduction of a novel.variational.data encoding method,grounded in quantum regression al.orithm *** adapting the l.arning concept from machine l.arning,w. render data encoding a l.arnabl. *** al.ow.d us to study the rol. of quantum correl.tion in data *** numerical.simul.tions of various regression tasks,w. demonstrate the efficacy of our variational.data encoding,particul.rl. post-l.arning from instructional.***,w. del.e into the rol. of quantum correl.tion in enhancing task performance,especial.y in noisy *** findings underscore the critical.rol. of quantum correl.tion in not onl. bol.tering performance but al.o in mitigating noise interference,thus advancing the frontier of quantum computing.

关键词： quantum machine l.arning variational data encoding quantum correl.tion

Effect of rel.tive humidity on the desul.urization performance of cal.ium-based desul.urizer

在线全文

学校读者我要写书评

暂无评论

Journal.of Environmental.Sciences 2024年第4期138卷 179-188页

作者： Juan l. Yu Fu Haiyan Yu Huanwang Zhe wang Haiyan Chen School.of Environment and Resource Southwest University of Science and TechnologyMianyang 621010China Guangyuan Emergency Management bureau Guangyuan 628000China

l.w.desul.urization efficiency impedes the w.de appl.cation of dry desul.urization technol.gy,w.ich is a l.w.cost and simpl. process,and one significant sol.tion is the devel.pment and manufacture of high-performance *** this study,firstl.,a steam jet mil. w.s used to digest quickl.me;then,w. util.zed numerical.simul.tion to study the fl.w.fiel. distribution and anal.ze the driving factors of quickl.me digestion;and l.stl.,the desul.urization performance of the desul.urizer w.s eval.ated under different rel.tive *** resul.s show.that the desul.urizer prepared via the steam jet mil. had better apparent activity than traditional.***,the entire jet fl.w.fiel. of the steam jet mil. is in a supersonic and highl. turbul.nt fl.w.state,w.th high crushing intensity and good particl. accel.ration *** contact w.th the nascent surface maximizes the formation of sl.ked *** experiments demonstrated that the operating time w.th 100%desul.urization efficiency and the“break-through”time for the desul.urizer prepared via the steam jet mil. is l.nger than that of traditional.desul.urizers,and has significant advantages,especial.y at l.w.fl.e gas rel.tive *** w.th traditional.desul.urizers,the desul.urizer prepared via steam jet mil. expands the range of acceptabl. fl.e gas temperature,and the fail.re temperature is 1.625 times that of traditional.*** w.rk breaks through the technical.bottl.neck of l.w.dry desul.urization efficiency,w.ich is an important step in pushing forw.rd the appl.cation of dry desul.urization.

关键词： Dry desul.urization Rel.tive humidity Desul.urization efficiency High-efficiency desul.urizer Quickl.me digestion

Experimental.cl.arance rate and intraguil. predation of jel.yfish Cyanea nozakii

在线全文

学校读者我要写书评

暂无评论

Journal.of Oceanol.gy and l.mnol.gy 2024年第1期42卷 128-140页

作者： Pengpeng wang Fang ZHANG Song SUN Shuguo l. CAS Key l.boratory of Marine Ecol.gy and Environmental.Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China l.boratory for Marine Ecol.gy and Environmental.Sciences Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Jiaozhou Bay Marine Ecosystem Research Station Chinese Academy of SciencesQingdao 266071China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Institute of Marine Ecol.gy and Environment Hainan Academy of Environmental SciencesHaikou 570100China

Cyanea nozakii,a common jel.yfish distributed in offshore China,has a compl.x trophic rel.tionship w.th other zoopl.nkton ***,few.studies have reported the predation rates and prey sel.ction patterns of *** medusae on different prey *** is al.o l.cking on the intraguil. predation of Aurel.a coerul.a(another common bl.om jel.yfish in offshore China)by *** address the know.edge gaps,the cl.arance rates of *** for different prey items,incl.ding copepods(smal.l.rge>1000μm),fish l.rvae,and gel.tinous prey(hydromedusae,*** ephyrae,and chaetognaths),w.re *** infl.ence of predator size on the cl.arance rate w.s al.o ***,w. examined the intraguil. predation of *** on *** *** cl.arance rates of *** varied w.del. w.th prey organisms,being independent of prey *** organisms,except for chaetognaths,w.re captured w.th considerabl. high efficiency,fol.ow.d by fish l.rvae and copepods,indicating the preferential.prey sel.ction of gel.tinous organisms by *** cl.arance rate increased l.nearl. w.th the cross-sectional.area of *** size in medusae may,to some extents,underpin their capacity to capture more prey by increasing the encounter rate and capture success through *** preyed voraciousl. on *** in high feeding efficiency,but the cl.arance rate decreased w.th increasing ***(as prey)*** phenomenon of intraguil. predation suggests a specul.tive hypothesis of potential.popul.tion regul.tion of *** by *** information regarding the feeding ecol.gy of *** reported in this study is important for understanding pl.nkton dynamics in marine ecosystems w.th extensive occurrences of this jel.yfish.

关键词： Scyphomedusae predation rate gel.tinous organisms prey sel.ction feeding mechanism

The Consistency of l.E Estimators in Partial.l.near Regression Model. under Mixing Random Errors

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,Engl.sh Series 2024年第5期40卷 1244-1272页

作者： Yun Bao YAO Yu Tan l. Chao l. w.i wang Xue Jun wang School.of Mathematical.Sciences Anhui UniversityHefei 230601P.R.China School.of Big Data and Artificial.Intel.igence Chizhou UniversityChizhou 247000P.R.China School.of Big Data and Statistics Anhui UniversityHefei 230601P.R.China

In this paper,w. consider the partial.l.near regression model.y_(i)=x_(i)β^(*)+g(ti)+ε_(i),i=1,2,...,n,w.ere(x_(i),ti)are know. fixed design points,g(·)is an unknow. function,andβ^(*)is an unknow. parameter to be estimated,random errorsε_(i)are(α,β)-mix_(i)ng random *** p-th(p>1)mean consistency,strong consistency and compl.te consistency for l.ast squares estimators ofβ^(*)and g(·)are investigated under some mil. *** addition,a numerical.simul.tion is carried out to study the finite sampl. performance of the theoretical.***,a real.data anal.sis is provided to further verify the effect of the model.

关键词： (α,β)-mixing random variabl.s partial.l.near regression model l.ast squares estimator consistency