检索结果-南通市图书馆

维普期刊数据库

Solvent-Free m.nufacturing.of Lithium.Ion Battery Electrodes via Cold Plasm.

在线全文

学校读者我要写书评

暂无评论

Energ. & Environm.ntal m.terials 2024年第1期7卷 32-37页

作者： Zhim.ng.Liang.Tianyi Li Holden Chi Joseph Zieg.lbauer Kai Sun m.ng.Wang.Wei Zhang.Tuo Liu Yang.Tse Cheng.Zong.ai Chen Xiaohong.g.yden Chunm.i Ban Paul m. Rady Departm.nt of m.chanical Eng.neering University of Colorado Boulder Advanced Photon Source Argonne National Laboratory Intecells inc. Departm.nt of m.terials Science and Eng.neering Michigan Center for Materials Characterization University of Michigan Departm.nt of Chem.cal and m.terials Eng.neering University of Kentucky Departm.nt of Chem.stry University of Kentucky Chem.cal Sciences and Eng.neering.Division Argonne National Laboratory

Slurry casting.has been used to fabricate lithium.ion battery electrodes for decades,which involves toxic and expensive org.nic solvents followed by hig.-cost vacuum.drying.and electrode *** work presents a new m.nufacturing.m.thod using.a nontherm.l plasm. to create interparticle binding.without using.any polym.ric binding.m.terials,enabling.solvent-free m.nufacturing.electrodes with any electrochem.stry of choice.

关键词： cold plasm. deposition lithium.ion battery solvent-free m.nufacturing

Efficiency im.rovem.nt by using.m.tal–insulator‑sem.conductor structure in Ing.N/g.N m.cro‑lig.t‑em.tting.diodes

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2024年第1期17卷 77-84页

作者： Jian Yin David Hwang.Hossein Zam.ni Siboni Ehsanollah Fathi Reza Chaji Dayan Ban Departm.nt of Electrical and Com.uter Eng.neering Waterloo Institute NanotechnologyUniversity of WaterlooWaterlooON N2L 3G1Canada Vuereal inc. 440 Philip StreetUnit 100WaterlooON N2L 5R9Canada

Ing.N/g.N m.cro-lig.t-em.tting.diodes(m.cro-LEDs)with a m.tal–insulator-sem.conductor(m.S)structure on the sidewall are proposed to im.rove *** this m.S structure,a sidewall electrode is deposited on the insulating.layer-coated sidewall of the device m.sa between a cathode on the bottom.and an anode on the ***(EL)m.asurem.nts of fabricated devices with a m.sa diam.ter of 10μm.show that the application of neg.tive biases on the sidewall electrode can inc.ease the device external quantum.efficiency(EQE).In contrast,the application of positive biases can decrease the *** band structure analysis reveals that the EQE is im.acted because the application of sidewall electric fields m.nipulates the local surface electron density along.the m.sa sidewall and thus controls surface Shockley–Read–Hall(SRH)*** sug.ested strateg.es,reducing.insulator layer thickness and exploring.alternative m.terials,can be im.lem.nted to further im.rove the EQE of m.S m.cro-LEDs in future fabrication.

关键词： m.cro-LED g.N EQE im.rovem.nt m.cro-fabrication

维普期刊数据库

An em.rg.ng.terpolym.ric nanoparticle pore form.r as an internal recrystallization inhibitor of celecoxib in controlled release am.rphous solid dispersion beads:Experim.ntal studies and m.lecular dynam.cs analysis

在线全文

学校读者我要写书评

暂无评论

Acta Pharm.ceutica Sinica B 2024年第6期14卷 2669-2684页

作者： Jam.e Anne Lug.u-Pe Xuning.Zhang.Sako m.rzaie Hao Han R.Chang.Nour AL-m.usawi Kuan Chen Yong.iang.Li Anil Kane Daniel Bar-Shalom.Xiao Yu Wu Advanced Pharm.ceutics and Drug.Delivery Laboratory Leslie Dan Faculty of PharmacyUniversity of TorontoToronto M5S 3M2Canada Candoo Pharm.tech Com.any inc. Mississauga L5N 5M1Canada Departm.nt of Pharm.cy University of CopenhagenCopenhagen DK-2100Denmark Patheon by Therm. Fisher Scientific Toronto Region Operations(TRO)Mississauga L5N 3X4Canada

Solid oral controlled release form.lations feature num.rous clinical advantag.s for drug.candidates with adequate solubility and dissolution ***,m.st new chem.cal entities exhibit poor water solubility,and hence are exem.t from.such *** com.ining.drug.am.rphization with controlled release form.lation is prom.sing.to elevate drug.solubility,like other supersaturating.system.,the problem.of drug.recrystallization has yet to be resolved,particularly within the dosag. ***,we explored the potential of an em.rg.ng.non-leachable terpolym.r nanoparticle(TPN)pore form.r as an internal recrystallization inhibitor within controlled release am.rphous solid dispersion(CRASD)beads com.rising.a poorly soluble drug.celecoxib)reservoir and insoluble polym.r(ethylcellulose)*** to conventional pore form.r,polyvinylpyrrolidone(PVP),TPN-containing.m.m.ranes exhibited superior structural integ.ity,less crystal form.tion at the CRASD bead surface,and g.eater extent of celecoxib ***-atom.m.lecular dynam.cs analyses revealed that in the presence of TPN,intra-m.lecular bonding.crystal form.tion tendency,diffusion coefficient,and m.lecular flexibility of celecoxib were reduced,while interm.lecular H-bonding.was inc.eased as com.ared to *** work sug.ests that selection of a pore form.r that prom.tes prolong.d m.lecular separation within a nanoporous controlled release m.m.rane structure m.y serve as an effective strateg. to enhance am.rphicity preservation inside CRASD.

关键词： Controlled release am.rphous solid dispersion Poorly soluble drug Internal recrystallization m.m.rane-reservoir coated beads m.lecular dynam.cs sim.lation Effect of pore form.rs Terpolym.r nanog.l Drug.polym.r interactions

m.chine learning.noise exposure detection of rail transit drivers using.heart rate variability

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Transportation Safety and Environm.nt 2024年第2期6卷 122-132页

作者： Zhiqiang.Sun Haiyue Liu Yubo Jiao Chenyang.Zhang.Fang.Xu Chaozhe Jiang.Xiaozhuo Yu g.ng.Wu School of Transportation and Log.stics Southwest Jiaotong UniversityChengdu 611756China Lanzhou Rail Transit Co. Ltd.Lanzhou 730000China Sichuan Tourism.University Chengdu 610100China Pag.rDuty Inc.905 King StWTorontoON M6K 3G9Canada

Previous studies have found that drivers’physiolog.cal conditions can deteriorate under noise conditions,which poses a potential hazard when *** a result,it is crucial to identify the status of drivers when exposed to different ***,such explo-rations are rarely discussed with short-term.physiolog.cal indicators,especially for rail transit *** this study,an experim.nt involving.42 railway transit drivers was conducted with a driving.sim.lator to assess the im.act of noise on drivers’physiolog.cal *** the individuals’heterog.neity,this study introduced drivers’noise annoyance to m.asure their *** variances of drivers’heart rate variability(HRV)along.with different noise adaptions are explored when exposed to different noise *** m.chine learning.approaches(support vector m.chine,K-nearest neig.bour and random.forest)were then used to classify their physiolog.cal status under different noise conditions according.to the HRV and drivers’self-noise *** indicate that the volum. of traffic noise neg.tively affects drivers’perform.nce in their *** with different noise adaptions but exposed to a fixed noise were found with discrepant HRV,dem.nstrating.that noise adaption is hig.ly associated with drivers’physiolog.cal status under *** is also found that noise adaption inc.usion could raise the accuracy of ***,the random.forests classifier perform.d the best in identifying.the physiolog.cal status when exposed to noise conditions for drivers with different noise adaptions.

关键词： noise exposure detection noise adaption heart rate variability(HRV) m.chining.learning sim.lator experim.nt

维普期刊数据库

DEm.analysis of the influence of stirrer desig. on die filling.with forced powder feeding

在线全文

学校读者我要写书评

暂无评论

Particuolog. 2024年第5期88卷 107-115页

作者： Chao Zheng.Edward Yost Ariel R.m.liadi Nicolin g.vender Ling.Zhang.Chuan-Yu Wu School of Chem.stry and Chem.cal Eng.neering University of SurreyGuildfordGU2 7XHUnited Kingdom Sm.ll m.lecule Pharm.ceutics GenentechInc.One DNA WaySouth San FranciscoCA94080USA

Die filling.is a critical stag. during.powder com.action,which can sig.ificantly affect the product quality and *** this paper,a forced feeder is introduced attem.ting.to im.rove the filling.perform.nce of a lab-scale die filling.*** die filling.process is analysed with a g.aphics processing.units(g.U)enhanced discrete elem.nt m.thod(DEm..Various stirrer desig.s are assessed for a wide rang. of process setting.(i.e.,stirrer speed,filling.speed)to explore their influence on the die filling.perform.nce of free-flowing.*** results show that die filing.with the novel helical-ribbon(i.e.,type D)stirrer desig. exhibits the hig.est filling.ratio,im.lying.that it is the m.st robust stirrer desig. for the feeder config.ration ***,die filling.perform.nce with the type D stirrer desig. is a function of the stirrer speed and the filling.speed.A positive variation of filling.ratio(ηf>0%)can be ensured over the whole rang. of filling.speed by adjusting.the stirrer speed(i.e.,inc.easing.the stirrer speed).The approach used in this study can not only help understand how the stirrer desig. affects the die filling.perform.nce but also g.ide the optim.zation of feeder system.and process setting..

关键词： Discrete elem.nt m.thod Die filling Forced feeding Stirrer desig. g.U com.uting

The g.ldbach Conjecture Is True

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Discrete m.them.tics 2024年第3期14卷 29-41页

作者： Jie Hou HQ Building.Desig. inc. Oshawa Canada

Let 2m.2, m.ℤ, be the g.ven even num.er of the Strong.g.ldbach Conjecture Problem. Then, m.can be called the m.dian of the problem. So, all g.ldbach partitions (p,q)exist a relationship, p=m.dand q=m.d, where p≤qand d is the distance from.m.to either p or q. Now we denote the finite feasible solutions of the problem.as S(2m.={ (2,2m.2),(3,2m.3),⋅⋅⋅,(m.m. }. If we utilize the Eratosthenes sieve princ.ple to efface those false objects from.set S(2m.in pistag.s, where pi∈P, pi≤2m. then all optim.l solutions should be found. The Strong.g.ldbach Conjecture is true sinc. we proved that at least one optim.l solution m.st exist to the problem. The Weak g.ldbach Conjecture is true sinc. it is a special case of the Strong.g.ldbach Conjecture. Therefore, the g.ldbach Conjecture is true.

关键词： m.dian The Feasible g.ldbach Partitions The Optim.l g.ldbach Partitions Cong.uences Effacem.nt

Derivation of a Revised Tsiolkovsky Rocket Equation That Predicts Com.ustion Oscillations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Aerospace Science and Technolog. 2024年第1期9卷 10-27页

作者： Zaki Harari Novelant Scientific Research inc. Toronto Canada

Our study identifies a subtle deviation from.Newton’s third law in the derivation of the ideal rocket equation, also known as the Tsiolkovsky Rocket Equation (TRE). TRE can be derived using.a 1D elastic collision m.del of the m.m.ntum.exchang. between the differential propellant m.ss elem.nt (dm. and the rocket final m.ss (m.), in which dm.initially travels forward to collide with m. and rebounds to exit throug. the exhaust nozzle with a velocity that is known as the effective exhaust velocity ve. We observe that such a m.del does not explain how dm.was able to acquire its initial forward velocity without the support of a reactive m.ss traveling.in the opposite direction. We show instead that the initial kinetic energ. of dm.is g.nerated from.dm.itself by a process of self-com.ustion and expansion. In our ideal rocket with a sing.e particle dm.confined inside a hollow tube with one closed end, we show that the process of self-com.ustion and expansion of dm.will result in a pair of differential particles each with a m.ss dm.2, and each traveling.away from.one another along.the tube axis, from.the center of com.ustion. These two identical particles represent the active and reactive sub-com.onents of dm. co-g.nerated in com.liance with Newton’s third law of equal action and reaction. Building.on this m.del, we derive a linear m.m.ntum.ODE of the system. the solution of which yields what we call the Revised Tsiolkovsky Rocket Equation (RTRE). We show that RTRE has a m.them.tical form.that is sim.lar to TRE, with the exception of the effective exhaust velocity (ve) term. The ve term.in TRE is replaced in RTRE by the averag. of two distinc. exhaust velocities that we refer to as fast-jet, vx1, and slow-jet, vx2. These two velocities correspond, respectively, to the velocities of the detonation pressure wave that is vectored directly towards the exhaust nozzle, and the retonation wave that is initially vectored in the direction of rocket propag.tion,

关键词： Tsiolkovsky Rocket Equation Ideal Rocket Equation Rocket Propulsion Newton’s Third Law Com.ustion Oscillations Com.ustion Instability

Einstein’s Concept of Clock Synchronization Conflicts with the Second Relativity Postulate

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of m.dern Physics 2024年第7期15卷 985-1000页

作者： Steven D. Deines Donatech Corporation Inc. Fairfield Iowa USA

Einstein defined clock synchronization whenever photon pulses with tim.tag. traverse a fixed distance between two clocks with equal tim. spans ineither direction. Using.the second relativity postulate, he found clocksm.unted on a rod uniform.y m.ving.parallel with the rod’s leng.h cannot besynchronized, but clocks attached to a stationary rod can. He dism.ssed thisdiscrepancy by claim.ng.sim.ltaneity and clock synchronization were not com.onbetween inertial fram.s, but this paper proves with both g.lilean and Lorentztransform.tions that sim.ltaneity and clock synchronization are preservedbetween inertial fram.s. His derivation m.ans m.ving.clocks can never besynchronized in a “resting. inertial fram.. Ultraprecise atom.c clocks intim.keeping.labs daily contradict his results. No alg.braic error occurred inEinstein’s derivations. The two cases of clocksattached to a rod reveal three m.jor conflicts with the currentsecond postulate. The net velocity between a photon source and detector plusthe “universal” velocity c is m.them.tically equivalent toEinstein’s clock synchronization m.thod. As the ultraprecise tim.keeping.om.unity daily synchronizes atom.c clocks on the m.ving.Earth withultraprecise tim. uncertainty well below Einstein’s lowest lim.t ofsynchronization, the theoretical resolution of the apparent conflict isaccom.lished by expanding.the second relativity postulate to inc.rporate thenet velocity between the photon source and detector with the em.tted velocity c as com.onents of the total velocity c. This m.ans the m.g.itudeof the total photon velocity can exceed the speed lim.t (299792458 m.s) set by the standard velocity c. .

关键词： Special Relativity Sim.ltaneity Clock Synchronization Photon Speed Lorentz Transform.tion g.lilean Transform.tion

A novel alternative for pyrog.n detection based on a transg.nic cell line

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Sig.al Transduction and Targ.ted Therapy 2024年第3期9卷 1221-1229页

作者： Qing.He Chuan-Fei Yu g.ng.Wu Kai-Qin Wang.Yong.Bo Ni Xiao g.o Zhi-Hao Fu Lan Wang.De-Jiang.Tan Hua g.o Can Wang.g.ng.Chen Xu-Hong.Chen Bo Chen Jun-Zhi Wang National Institutes for Food and Drug.Control BeijingChina School of Life Science and Biopharm.ceutics Shenyang Pharmaceutical UniversityShenyangChina Shang.ai Institute for Food and Drug.Control ShanghaiChina Keym.d Biosciences inc. ChengduChina

Pyrog.n,often as a contam.nant,is a key indicator affecting.the safety of alm.st all parenteral drug.(inc.uding.biolog.cals,chem.cals,traditional Chinese m.dicines and m.dical devices).It has becom. a g.al to com.letely replace the in vivo rabbit pyrog.n test by using.the in vitro pyrog.n test based on the prom.ted‘reduction,replacem.nt and refinem.nt’princ.ple,which has been hig.ly considered by reg.latory ag.ncies from.different *** used NF-κB,a central sig.alling.m.lecule m.diating.inflam.atory responses,as a pyrog.nic m.rker and the m.nocyte line THP-1 transfected with a luciferase reporter g.ne reg.lated by NF-κB as an in vitro m.del to detect pyrog.ns by m.asuring.the intensity of a fluorescence ***,we show that this test can quantitatively and sensitively detect endotoxin(lipopolysaccharide from.different strains)and nonendotoxin(lipoteichoic acid,zym.san,peptidog.ycan,lectin and g.ucan),has g.od stability in term. of NF-κB activity and cell phenotypes at 39 cell passag.s and can be applied to detect pyrog.ns in biolog.cals(g.oup A&C m.ning.coccal polysaccharide vaccine;basilixim.b;rabies vaccine(Vero cells)for hum.n use,freeze-dried;Japanese encephalitis vaccine(Vero cells),inactivated;insulin aspart injection;hum.n album.n;recom.inant hum.n erythropoietin injection(CHO Cell)).The within-laboratory reproducibility of the test in three independent laboratories was 85%,80%and 80%and the interlaboratory reproducibility am.ng.laboratories was 83.3%,95.6%and 86.7%.The sensitivity(true positive rate)and specificity(true neg.tive rate)of the test were 89.9%and 90.9%,*** sum.ary,the test provides a novel alternative for pyrog.n detection.

关键词： pyrog.n rabbit replace