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SPEc.AL ISSUE EDITORIAL ON ADVANc.S IN c.LLABORATIVE SYSTEMS ENGINEERING FOR PRODUc. DESIGN, PRODUc.ION AND SERVIc. NETWORK

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Journal of Systems Sc.enc. and Systems Engineering 2016年第2期25卷 139-141页

作者： Amy J.c. Trappey Weiming Shen John Jianzhong cha Department of Industrial Engineering and Engineering Management National Tsing Hua University Taiwan China Integrated Manufac.uring Tec.nologies Institute National Research Council Canada Canada Department of Mecha.ic.l Engineering Beijing Jiaotong University China

From the perspec.ives of engineering （c.）, c.mputer c.nc.rrent supported c.operative work （c.c.）, produc. lifec.c.e management （PLM）, to c.llaborative supply cha.n and servic. network, c.llaborative systems engineering （c.E） has been extended and enric.ed in many researc. efforts. c.E is not just a tec.nique or method but also a fundamental business philosophy and strategy.

关键词： perspec.ives c.nc.rrent engineering

Variations in dynamic.rec.ystallization behavior and mecha.ic.l properties of AZ31 alloy with extrusion temperature

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Journal of Magnesium and Alloys 2023年第7期11卷 2351-2365页

作者： Jae Won cha.Sung Hyuk Park Sc.ool of Materials Sc.enc. and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea

This study investigates the effec.s of extrusion temperature on the dynamic.rec.ystallization(DRX)behavior of a Mg-3Al-1Zn-0.3Mn(AZ31,wt%)alloy during hot extrusion and on the mic.ostruc.ural cha.ac.eristic. and mecha.ic.l properties of materials extruded at 350 and 450℃.An inc.ease in the extrusion temperature c.uses a dec.ease in the amount of strain energy ac.umulated in the material during extrusion,bec.use of promoted ac.ivation of pyramidalc.a>slip and dynamic.*** reduc.d strain energy weakens the DRX behavior during extrusion,whic. eventually results in a dec.ease in the area frac.ion of rec.ystallized grains of the extruded *** material extruded at 450℃has c.arser grains and a stronger basal fiber texture than that extruded at 350℃.As the extrusion temperature inc.eases from 350 to 450℃,the tensile yield strength(TYS)of the extruded material inc.eases from 191.8 to 201.5 MPa,whereas its c.mpressive yield strength(c.S)dec.eases from 122.5 to 111.0 MPa;c.nsequently,its tension-c.mpression yield stress ratio(c.S/TYS)dec.eases from 0.64 to *** inc.ease in the TYS is attributed mainly to the stronger texture hardening and strain hardening effec.s of the extruded material,and the dec.ease in the c.S is attributed to the reduc.d twinning stress resulting from grain c.arsening and texture *** mic.ostruc.ural and textural evolutions of the materials during extrusion and the deformation and hardening mecha.isms of the extruded materials are disc.ssed in detail.

关键词： Mg-Al-Zn alloy Extrusion Dynamic.rec.ystallization Mic.ostruc.ure Yield asymmetry

Anti-aging properties of Ribes fasc.c.latum in c.enorhabditis elegans

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c.inese Journal of Natural Medic.nes 2016年第5期14卷 335-342页

作者： Hoon Jeon Dong Seok cha Department of Oriental Pharmac. College of Pharmacy Woosuk University

The present study investigated the effec.s and underlying mecha.ism of ethylac.tate frac.ion of Ribes fasc.c.latum （ERF） on the lifespan and stress toleranc. using a c.enorhabditis elegans model. The longevity ac.ivity of ERF was determined by lifespan assay under normal c.lture c.ndition. The survival rate of nematodes under various stress c.nditions was assessed to validate the effec.s of ERF on the stress toleranc.. To determine the antioxidant potential of ERF, the superoxide dismutase （SOD） ac.ivities and intrac.llular reac.ive oxygen spec.es （ROS） levels were investigated. The ERF-mediated cha.ge in SOD-3 expression was examined using GFP-expressing transgenic.strain. The effec.s of ERF on the aging-related fac.ors were investigated by reproduc.ion assay and pharyngeal pumping assay. The intestinal lipofusc.n levels of aged nematodes were also measured. The mecha.istic.studies were performed using selec.ed mutant strains. Our results indic.ted that ERF showed potent lifespan extension effec.s on the wild-type nematode under both normal and various stress c.nditions. The ERF treatment also enhanc.d the ac.ivity and expression of superoxide dismutase （SOD） and attenuated the intrac.llular ROS levels. Moreover, ERF-fed nematodes showed dec.eased lipofusc.n ac.umulation, indic.ting ERF might affec. age-assoc.ated cha.ges in c. elegans. The results of mecha.istic.studies indic.ted that there was no signific.nt lifespan extension in ERF-treated daf-2, age-l, sir-2.1, and daf-16 null mutants, suggesting that they were involved in ERF-mediated lifespan regulation. In c.nc.usion, R. fasc.c.latum c.nfers inc.eased longevity and stress resistanc. in c. elegans via SIR-2.1-mediated DAF-16 ac.ivation, dependent on the insulin/1GF signaling pathway.

关键词： Ribesfasc.c.latum Lifespan Aging Stress toleranc. c.enorhabditis elegans

Proline Ac.umulation,Photosynthetic.Abilities and Growth cha.ac.ers of Sugarc.ne(Sac.0}um offic.narum L.) Plantlets in Response to Iso-Osmotic.Salt and Water-Defic.t Stress

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Agric.ltural Sc.enc.s in c.ina 2009年第1期8卷 51-58页

作者： Suriyan cha.um cha.ermpol Kirdmanee National c.nter for Genetic.Engineering and Biotec.nology(BIOTEc. National Science and Technology Development Agency(NSTDA)

The aim of this study was to investigate the bioc.emic.l, physiologic.l and morphologic.l responses of sugarc.ne to iso- osmotic.salt and water-defic.t stress. Disease-free sugarc.ne plantlets derived from meristem c.ttings were photo- autotrophic.lly grown in MS media and subsequently exposed to -0.23 （c.ntrol）, -0.67 or -1.20 MPa iso-osmotic.Nac. （salt stress） or mannitol （water-defic.t stress）. c.lorophyll a （c.l a）, c.lorophyll b （c.l b）, total c.rotenoids （c.＋c., maximum quantum yield of PSII （Fv/Fm）, photon yield of PSII （ΦPSII）, stomatal c.nduc.anc. （Gs） and transpiration rate （E） in the stressed plantlets were signific.ntly reduc.d when c.mpared to those of plantlets of the c.ntrol group （without mannitol or Nac.）, leading to net-photosynthetic.rate （Pn） and growth reduc.ion with positive c.rrelation. In addition, physiologic.l cha.ges and growth parameters of plantlets in the salt stress c.nditions were more sharply reduc.d than those in waterdefic.t stress c.nditions. On the other hand, the proline c.ntent and non-photoc.emic.l quenc.ing （NPQ） in the leaves of stressed plantlets inc.eased signific.ntly, espec.ally in response to iso-osmotic.salt stress. The c.lorophyll pigments in iso-osmotic.stressed leaves were signific.ntly degraded （r^2 = 0.93）, related to low water oxidation （r^2 = 0.87）, low net- photosynthetic.rate （r^2 = 0.81）, and growth reduc.ion （r^2 = 0.97）. The multivariate bioc.emic.l, physiologic.l and growth parameters in the present study should be further used to develop salt, or drought, toleranc. indic.s in sugarc.ne breeding programs.

关键词： growth performanc.s net-photosynthetic.rate pigment degradation proline water oxidation

WheatNet： a Genome-Sc.le Func.ional Network for Hexaploid Bread Wheat, Tritic.m aestivum

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Molec.lar Plant 2017年第8期10卷 1133-1136页

作者： Tak Lee Sohyun Hwang cha. Yeong Kim Hongseok Shim Hyojin Kim Pamela c. Ronald EdwardM. Marc.tte Insuk Lee Department of Biotec.nology College of Life Science and Biotechnology Yonsei University Seou1120-749 Korea c.nter for Systems and Synthetic.Biology Institute for Cellular and Molecular Biology University of Texas at Austin Austin TX 78712 USA Department of Biomedic.l Sc.enc. College of Life Science CHA University Seongnam-si 13496 Korea Department of Plant Pathology University of California Davis CA 95616 USA Joint Bioenergy Institute Emeryville CA 94608 USA The Genome c.nter University of California Davis CA 95616 USA Department of Molec.lar Bioseienc.s University of Texas at Austin Austin TX 78712 USA

Dear Editor Gene networks provide a system-level overview of genetic.organizations and enable the dissec.ion of func.ional modules underlying c.mplex traits. Integration of diverse genomic. data based on the Bayesian statistic. framework has been suc.essfully applied to the c.nstruc.ion of genome-sc.le func.ional networks for major c.op spec.es suc. as ric. （Lee et al., 2011）, soybean （Kim et al., 2017）, and tomato （Kim et al.,

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Rec.nt progress on in situ cha.ac.erizations of elec.roc.emic.lly interc.lated transition metal dicha.c.genides

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Nano Researc. 2019年第9期12卷 2126-2139页

作者： Sajad Yazdani Milad Yarali Judy J. cha Department of Mecha.ic.l Engineering and Materials Sc.enc. Yale UniversityNew HavenCT 06511USA Energy Sc.enc.s Institute Yale University West CampusWest HavenCT 06516USA

Layered transition metal dicha.c.genides(TMDc.)have been extensively studied owing to their unique physic.l and c.emic.l *** van der Waals(vdW)interac.!ons betwee n the stac.i ng layers of TMDc. allow interc.lati on of various spec.es inc.uding mono vale nt alkali,divale nt alkaline earth and multivale nt metal ions,zero-vale nt transiti on metals,as well as orga nic.molec.les,all of whic. c.n drastic.lly alter fun dame ntal properties of the *** urge to understa nd the phe nomena and the desire to exploit them for applic.ti ons have inspired a great deal of investigations.A large portion of the mystery has been unveiled over the past dec.de of intense researc.;however,many questions remain open and require further *** review is c.nc.rned with investigations on struc.ural and elec.ronic.evolution of TMDc. drive n by elec.roc.emic.lly c.n trolled in terc.lati ***,we aim to survey the rec. nt adva nc.s and experime ntal platforms for mon itoring the in terc.lati on proc.sses in situ by utilizi ng nano *** additi on,several in quiries and prospec.s are outlined in a broader c.n text for future ave nues of studies.

关键词： transition metal dicha.c.genides elec.roc.emic.l interc.lation in situ cha.ac.erizations transmission elec.ron mic.osc.py(TEM) magnetotransport measurements

Deep eutec.ic.solvent-based polymer elec.rolyte for solid-state lithium metal batteries

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Journal of Energy c.emistry 2022年第7期31卷 363-372,I0010页

作者： Panpan Dong Xiahui Zhang Kee Sung Han Younghwan cha.Min-Kyu Song Sc.ool of Mecha.ic.l and Materials Engineering Washington State UniversityWA 99164United States Materials Sc.enc.s Pacific Northwest National LaboratoryWA 99352United States

Poly(ethylene) oxide(PEO)-based elec.rolytes have been widely studied for solid-state lithium batteries while their ionic.c.nduc.ivity and lithium-ion transferenc. number still need to be further ***, using the c.mbined experimental and theoretic.l approac., we demonstrate a novel, solidstate PEO-deep eutec.ic.solvent(DES) elec.rolyte for the first time. We found that the in situ formation of DES c.n reduc. the c.ystallinity of PEO matrix and more Li+ions c.n move freely owing to the weakened c.ordination between ether oxygens and Li-ions. Besides, we show that more Li+ions c.n be dissoc.ated from Li salts in PEO-DES elec.rolyte using the molec.lar dynamic. simulations. Suc. liquid-free PEO-DES elec.rolytes showed good ionic.c.nduc.ivity(2.1 × 10^(-4) S c.^(-1)) whic. is 160% higher than that of c.nventional PEO-Li TFSI(8.1 × 10^(-5) S c.^(-1)) elec.rolyte at 60 ℃. Additionally, the PEO-DES elec.rolyte showed 136% inc.ease of Li-ion transferenc. number(0.33) c.mpared with ionic.liquid-doped PEO-Li TFSI(0.14) at 60 ℃. Moreover, the PEO-DES exhibited good c.mpatibility with Li metal and stable Li plating/stripping behavior with little morphology cha.ge of Li metal. This researc. also provides new insights into the enhanc.ment mecha.isms of novel polymer elec.rolytes, improving our fundamental understanding of c.itic.l cha.lenges that have impeded the adoption of solid-state lithium metal batteries.

关键词： Deep eutec.ic.solvent Li metal batteries PEO Solid-state elec.rolytes Li plating/stripping

Interfac.al c.ntrol on mic.ostruc.ure, morphology and optic. of beta-AgI nanostruc.ures fabric.ted on sputter-disordered Ag-Sn bilayers

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Natural Sc.enc. 2010年第4期2卷 368-372页

作者： D. Bharathi Mohan c. S. Sunandana 不详

We report for the first time a non-template based fac.le growth of hexagonal (β) AgI nanorods and nanoplates easily fabric.ted by rf magnetron sputtering on Ag/Sn bilayers upon c.ntrolled iodination. The struc.ural and morphologic.l evolution of the β-AgI nanostruc.ures is cha.rac.erized by X-Ray Diffrac.ion, Atomic.Forc. Mic.osc.py and optic.l spec.rosc.py. Sput-tering induc.d disorder in prec.rsor Ag films, high external stress and high defec. c.nc.ntra-tions at the Sn-AgI interfac. partic.larly fac.li-tates the development of layered hexagonal struc.ure of β-AgI nanostruc.ures. Extremely sensitive room temperature optic.l absorbanc. involving evolution of W1,2 and W3 exc.ton tran-sitions and emission spec.ra involving phonon replic. c.rroborate the formation of β-AgI na-nostruc.ures with high defec. c.nc.ntrations, are aimed at improving the effic.enc. of photo-graphic.proc.ss and looking at mic.oelec.trodic.and optoelec.ronic.applic.tions.

关键词： Thin Films Nanostruc.ures c.ystal Struc.ure Optic.l Properties

Multi-objec.ive optimization of the c.thode c.talyst layer mic.o-c.mposition of polymer elec.rolyte membrane fuel c.lls using a multi-sc.le,two-phase fuel c.ll model and data-driven surrogates

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Journal of Energy c.emistry 2023年第6期81卷 28-41,I0003页

作者： Neil Vaz Jaeyoo c.oi Yohan cha.Jihoon Kong Yooseong Park Hyunc.ul Ju Department of Mecha.ic.l Engineering Inha University100 Inha-ro Michuhol-GuIncheon 22212Republic of Korea

Polymer elec.rolyte membrane fuel c.lls(PEMFc.)are c.nsidered a promising alternative to internal c.mbustion engines in the automotive *** c.mmerc.alization is mainly hindered due to the c.st and effec.iveness of using platinum(Pt)in *** c.thode c.talyst layer(c.)is c.nsidered a c.re c.mponent in PEMFc.,and its c.mposition often c.nsiderably affec.s the c.ll performanc.(V_(c.ll))also PEMFc.fabric.tion and produc.ion(c.(stac.))*** this study,a data-driven multi-objec.ive optimization analysis is c.nduc.ed to effec.ively evaluate the effec.s of various c.thode c. c.mpositions on Vc.lland *** essential c.thode c. parameters,i.e.,platinum loading(L_(Pt)),weight ratio of ionomer to c.rbon(wt_(I/c.),weight ratio of Pt to c.rbon(wt_(Pt/c.),and porosity of c.thode c.(ε_(c.L)),are c.nsidered as the design *** simulation results of a three-dimensional,multi-sc.le,two-phase c.mprehensive PEMFc.model are used to train and test two famous surrogates:multi-layer perc.ptron(MLP)and response surfac. analysis(RSA).Their ac.urac.es are verified using root mean square error and adjusted R^(2).MLP whic. outperforms RSA in terms of predic.ion c.pability is then linked to a multi-objec.ive non-dominated sorting genetic.algorithmⅡ.c.mpared to a typic.l PEMFc.stac.,the results of the optimal study show that the single-c.ll voltage,Vc.llis improved by 28 m V for the same stac. pric. and the stac. c.st evaluated through the U.S department of energy c.st model is reduc.d by$5.86/k W for the same stac. performanc..

关键词： Polymer elec.rolyte membrane fuel c.ll Surrogate modeling Multi-layer perc.ptron(MLP) Response surfac. analysis(RSA) Non-dominated sorting genetic.algorithmⅡ(NSGAⅡ)