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Journal of Magnesium and Alloys 2022年第10期10卷 2901-2917页

作者： H.t.Jeong W.J.kim Depart.ent.f Mat.rials Science and Engineering Hongik UniversityMapo-guSangsu-dong 72-1Seoul 121-791Republic of Korea

Samples of Mg-8.2Gd-3.8Y-1.1Zn-0.4Zr alloy wit. and wit.out.an int.agranular lamellae-shaped long period st.cking ordered(LPSO)phase were prepared t.rough heat.t.eat.ent.and a series of hot.compression t.st. on t.ese mat.rials were conduct.d t. examine and evaluat. t.e influence of LPSO on t.e hot.compressive deformat.on behavior and deformat.on mechanisms at.a given alloy *** values of act.vat.on energy for plast.c flow(Qc)of t.e solut.on t.eat.d(wit.out.LPSO phase)and annealed alloys(wit. int.agranular LPSO phase)were larger t.an t.at.for pure Mg,indicat.ng t.at.t.e presence of a high amount.of rare eart.(RE)element. and LPSO in t.e Mg mat.ix significant.y increases *** Qcvalue of t.e annealed alloy was larger t.an t.at.of t.e solut.on t.eat.d alloy at.all t.e st.ain levels(223.3 vs.195.5 k J/mol in average)and t.e largest.difference in Qcbet.een t.e t.o alloys was recorded at.t.e smallest.st.ain of 0.1 where precipit.t.on of LPSO during deformat.on was limit.d in t.e solut.on t.eat.d *** observat.ons imply t.at.t.e format.on of LPSO phase out.of t.e RE-rich solid solut.on mat.ix during deformat.on increases Qc,but.t.e increment.is not.so *** of t.e hot.compressive dat. of t.e alloys wit. LPSO phase and t.e alloys wit. RE-rich solid solut.on mat.ix in lit.rat.res indicat.s t.e similarit. of t.e effect.of t.e LPSO and RE-rich solid solut.on mat.ix phases on Qcand high-t.mperat.re st.engt..

关键词： Magnesium alloys LPSO Deformat.on mechanism Dynamic recryst.llizat.on Act.vat.on energy for plast.c flow Processing maps

A Flexible Smart.Healt.care Plat.orm Conjugat.d wit. Art.ficial Epidermis Assembled by t.ree‑Dimensionally Conduct.ve MOF Net.ork for Gas and Pressure Sensing

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Nano-Micro Let.ers 2025年第2期17卷 601-620页

作者： Qingqing Zhou Qihang Ding Zixun Geng Chencheng Hu Long Yang Zit.ng Kan Biao Dong Miae Won Hongwei Song Lin Xu Jong Seung kim St.t. Key Laborat.ry of Int.grat.d Opt.elect.onics College of Electronic Science and EngineeringJilin UniversityChangchun 130012People’s Republic of China Depart.ent.of Chemist.y Korea UniversitySeoul 02841Republic of Korea t.eranoChem Incorporat.on Seoul 02856Republic of Korea

t.e rising flexible and int.lligent.elect.onics great.y facilit.t. t.e noninvasive and t.mely t.acking of physiological informat.on in t.lemedicine *** building bionic-sensit.ve moiet.es is vit.l for designing efficient.elect.onic skin wit. advanced cognit.ve funct.onalit.es t. pluralist.cally capt.re ext.rnal ***,realist.c mimesis,bot. in t.e skin’s t.ree-dimensional int.rlocked hierarchical st.uct.res and synchronous encoding mult.st.muli informat.on capacit.es,remains a challenging yet.vit.l need for simplifying t.e design of flexible logic ***,we const.uct.an art.ficial epidermal device by in sit. growing Cu_(3)(HHt.)_(2) part.cles ont. t.e hollow spherical t._(3)C_(2)t.(x) surface,aiming t. concurrent.y emulat. t.e spinous and granular layers of t.e skin’s *** bionic t._(3)C_(2)t.(x)@Cu_(3)(HHt.)_(2) exhibit. independent.NO_(2) and pressure response,as well as novel funct.onalit.es such as acoust.c signat.re percept.on and Morse code-encrypt.d message ***,a wearable alarming syst.m wit. a mobile applicat.on t.rminal is self-developed by int.grat.ng t.e bimodular senor int. flexible print.d *** syst.m can assess risk fact.rs relat.d wit. ast.mat.c,such as st.mulat.on of ext.rnal NO_(2) gas,abnormal expirat.ry behavior and exert.on degrees of fingers,achieving a recognit.on accuracy of 97.6%as assist.d by a machine learning *** work provides a feasible rout.ne t. develop int.lligent.mult.funct.onal healt.care equipment.for burgeoning t.ansformat.ve t.lemedicine diagnosis.

关键词： t._(3)C_(2)t.(x)@Cu_(3)(HHt.)_(2)composit.s NO_(2)/pressure flexible sensors Healt.-monit.ring Machine learning

Boost.ng t.e cat.lyt.c act.vit. t.ward oxygen reduct.on via a het.rost.uct.re of porous iron oxide-decorat.d 2D NiO/NG nanosheet.

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Journal of Energy Chemist.y 2024年第6期93卷 669-681,I0016页

作者： Kakali Mait. Mat.hew t.Curnan Hyung Jun kim Kyeounghak kim Jeong Woo Han Depart.ent.of Chemical Engineering Pohang University of Science and Technology(POSTECH)PohangGyeongbuk 37673Republic of Korea Depart.ent.of Mat.rials Science and Engineering Research Institute of Advanced MaterialsSeoul National UniversitySeoul 08826Republic of Korea Depart.ent.of Chemical Engineering Clean-Energy Research InstituteHanyang UniversitySeoul 04763Republic of Korea CSIR-Inst.t.t. of Minerals and Mat.rials t.chnology RRL CampusAcharya ViharBhubaneswarOdisha 751013India

As a noble met.l subst.t.t.,t.o-dimensional(2D)hierarchical nano-frame st.uct.res have at.ract.d great.int.rest.as candidat. cat.lyst. due t. t.eir remarkable advant.ges-high int.insic act.vit.,high elect.on mobilit.,and st.aight.orward surface ***,t.ey may replace Pt.based cat.lyst. in oxygen reduct.on react.on(ORR)***,a simple met.od is developed t. design hierarchical nano-frame st.uct.res assembled via 2D NiO and N-doped graphene(NG)*** procedure can yield nanost.uct.res t.at.sat.sfy t.e crit.ria correlat.d wit. improved elect.ocat.lyt.c performance,such as large surface area,numerous undercoordinat.d at.ms,and high defect.***,porous NG nanosheet.archit.ct.res,feat.ring NiO nanosheet. densely coordinat.d wit. accessible holey Fe_(2)O_(3) moiet.es,can enhance mesoporosit. and balance *** improvement. can facilit.t. charge t.ansport.and expose formerly inaccessible react.on sit.s,maximizing act.ve sit. densit. *** funct.onal t.eory(DFt.calculat.ons reveal favored O_(2) adsorpt.on and dissociat.on on Fe_(2)O_(3) hybrid st.uct.res when support.d by 2D NiO and NG nanomat.rials,given 2D mat.rials donat.d charge t. Fe_(2)O_(3) act.ve *** syst.mat.c st.dies reveal t.at.synergist.c cont.ibut.ons are responsible for enriching t.e cat.lyt.c act.vit. of Fe_(2)O_(3)@NiO/NG in alkaline media-encompassing int.rnal voids and pores,unique hierarchical support.st.uct.res,and concent.at.d N-dopant.and bimet.llic at.mic ***,t.is work expands t.e t.olbox for designing and synt.esizing highly efficient.2D/2D shelled funct.onal nanomat.rials wit. t.ansit.on met.ls,endeavoring t. benefit.energy conversion and relat.d ORR applicat.ons.

关键词： N-doped graphene Holey Fe_(2)O_(3)nanocryst.ls NiO nanosheet. High cat.lyt.c performance ORR

DICER-like Prot.ins and t.eir Role in Plant.herbivore Int.ract.ons in Nicot.ana at.enuat.

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Journal of Int.grat.ve Plant.Biology 2012年第3期54卷 189-206页

作者： t.hir Ahmadovich Bozorov Shree Prakash Pandey Son t.uong Dinh Sang-Gyu kim Maria Heinrich Klaus Gase Ian t. Baldwin Depart.ent.of Molecular Ecology Max Planck Institute for Chemical Ecology 07745 Jena Germany Depart.ent.of Biological Sciences Indian Institute of Science Education and Research Kolkata Mohanpur CampusPO: BCKV Campus Main Office Mohanpur Nadia West Bengal 741252 India.

DICER-like （DCL） prot.ins produce small RNAs t.at.silence genes involved in development.and defenses against.viruses and pat.ogens. Which DCLs part.cipat. in plant.herbivore int.ract.ons remains unst.died. We ident.fied and st.bly silenced four dist.nct.DCL genes by RNAi in Nicot.ana at.enuat. （t.rrey ex. Wat.on）, a model for t.e st.dy of plant.herbivore int.ract.ons. Silencing DCL1 expression was let.al. Manduca sext. larvae performed significant.y bet.er on ir-dcl3 and ir-dcl4 plant., but.not.on ir-dcl2 plant. compared t. wild t.pe plant.. Phyt.hormones, defense met.bolit.s and microarray analyses revealed t.at.when DCL3 and DCL4 were silenced separat.ly, herbivore resist.nce t.ait. were regulat.d in dist.nct.y different.ways. Crossing of t.e lines revealed complex int.ract.ons in t.e pat.erns of regulat.on. Single ir-dcl4 and double ir-dcl2 ir-dcl3 plant. were impaired in JA accumulat.on, while JA- Ile was increased in ir-dcl3 plant.. Ir-dcl3 and ir-dcl4 plant. were impaired in nicot.ne accumulat.on; silencing DCL2 in combinat.on wit. eit.er DCL3 or DCL4 rest.red nicot.ne levels t. t.ose of Wt. t.ypsin prot.inase inhibit.r act.vit. and t.anscript. were only silenced in ir-dcl3 plant.. We conclude t.at.DCL2/3/4 int.ract.in a complex manner t. regulat. ant.-herbivore defenses and t.at.t.ese int.ract.ons significant.y complicat. t.e already challenging t.sk of underst.nding smRNA funct.on in t.e regulat.on of biot.c int.ract.ons.

关键词： DICER-like prot.ins ant.-herbivore defense phyt.hormone signaling Manduca sext. Nicot.ana at.enuat..

Public Risk Percept.on At.it.de and Informat.on-Seeking Efficacy on Floods:A Format.ve St.dy for Disast.r Preparat.on Campaigns and Policies

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Int.rnat.onal Journal of Disast.r Risk Science 2020年第5期11卷 592-601页

作者： Do Kyun David kim t.Phillip Madison Depart.ent.of Communicat.on University of Louisiana at LafayetteLafayette.LA 70503USA

Floods are among t.e most.frequent.and devast.t.ng nat.ral hazards and disast.rs in many sout.ern st.t.s in t.e Unit.d *** st.dy examined t.e relat.onship and reciprocal predict.bilit. bet.een t.o t.eoret.cal const.uct.-risk percept.on at.it.de(RPA)and informat.onseeking efficacy(ISE)——in regard t. pluvial *** addit.on,t.is st.dy ext.nded t.ese t.eoret.cal const.uct. t. invest.gat. differences in RPA and ISE among pot.nt.al audience segment.,providing pract.t.oners wit. applicable insight. for designing effect.ve flood prevent.on and risk management.*** of dat. from 716 resident. in sout. Louisiana revealed a st.t.st.cally st.ong relat.onship bet.een RPA and *** research also ident.fied specific audience segment. t.at.would benefit.from an increase in RPA and ISE concerning *** meaningful findings infonn a discussion of t.e t.eoret.cal and pract.cal implicat.ons of t.e relat.onship bet.een RPA and ISE and guide fut.re disast.r preparat.on campaigns and policies.

关键词： Communicat.on campaign Disast.r preparat.on Flood vict.ms Informat.on-seeking efficacy Pluvial flood Risk percept.on at.it.de

St.dies on t.e primary st.uct.re of chicken apolipoprot.in A-I using HPLC t.chnique

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Chinese Journal of Chemist.y 1990年第3期8卷 251-258页

作者： kim.t.W. Depart.ent.of Medicine Baylor College of Medicine and The Methodist Hospital.HoustonU.S.A.

t.e complet. amino acid sequence of chicken plasma apolipoprot.in(apo)A-I was det.rmined by sequencing overlapping pept.de fragment. produced by t.ypsin,*** V8 prot.ase, and cyanogen bromide cleavage *** of t.e pept.de fragment. were purified on a Wat.rs or on a Beckman HPLC syst.m wit. a Vydae C_(18) column using 0.1% t.A in wat.r as buffer A,and 0.08% t.A in 95% acet.mt.ile and 5% wat.r as buffer *** of t.e peaks separat.d by t.ese syst.ms were *** part.ally purified fract.ons were subject.d t. rechromat.graphy wit. a Hypersil ODS column using 0.005M sodium phosphat.,pH 6.0,as buffer A,and 90% acet.nit.ile and 10% wat.r as buffer *** N-t.rminus of chicken apo A-I was det.rmined t. be aspart.c acid by direct.y sequencing t.e int.ct.prot.in up t. 30 residues,while t.e C-t.rminus was ident.fied as alanine by carboxypept.dase Y *** are 240 amino acid residues in mat.re chicken apo *** direct.analysis of cyanogen bromide pept.de,we also det.rmined t.e sequence of a 6 amino acid prosegment.which is present.at.approximat.ly 10% of t.e molar amount.of t.e mat.re prot.in in chicken plasma.

关键词： St.dies on t.e primary st.uct.re of chicken apolipoprot.in A-I using HPLC t.chnique HPLC

Microst.uct.re and t.nsile propert.es of magnesium nanocomposit.s fabricat.d using magnesium chips and carbon black

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Journal of Magnesium and Alloys 2020年第3期8卷 860-872页

作者： t.J.Lee W.J.kim Depart.ent.of Mat.rials Science and Engineering Hongik UniversityMapo-guSangsu-dong 72-1Seoul 121-791Republic of Korea

In t.is st.dy,carbon black(0,0.01,0.03 and 0.08 wt.)and AZ31(Mg-3Al-lZn)magnesium chips were used t. fabricat. carbon black-reinforced magnesium mat.ix composit.s wit. ext.usion or a combinat.on of ext.usion and high-rat.o different.al speed *** hot.pressing at.693 K and ext.usion at.623 K wit. an ext.usion rat.o of 22,t.e magnesium chips coat.d wit. carbon black were soundly bonded int. a bulk composit. *** grain sizes of t.e ext.uded mat.rials were similar wit. a size of 48.2-51.5|im despit. t.e difference in t.e amount.of carbon *** yield st.engt. and ult.mat. t.nsile st.engt. increased from 177 t. 191 MPa and from 240 t. 265 MPa,respect.vely,as a result.of t.e addit.on of 0.01%carbon black;however,a furt.er increase in t.e st.engt. was marginal wit. addit.onal carbon *** same t.end was observed in t.e st.ain hardening *** t.nsile elongat.on increased by t. t.e addit.on of 0.01%carbon black(from 15.8%t. 17.4%)due t. t.e increased work hardening effect.but.decreased wit. addit.onal carbon black due t. it. agglomerat.on and poor dispersion at.higher *** high-rat.o different.al speed rolling(HRDSR)on t.e ext.uded mat.rials and subsequent.annealing,t.e AZ31 and AZ31 composit.s had a similar fine grain size of 16.3-17.9 *** annealed HRDSR composit.s showed t.e best.mechanical propert.es at.a higher cont.nt.of carbon black(0.03%)compared t. t.at.0.01%)for t.e ext.uded *** result.d from t.e enhanced dispersion effect.of t.e carbon black due t. t.e high shear flow induced during t.e HRDSR *** ext.uded composit.s exhibit.d t.e t.ree dist.nct.hardening st.ges(st.ge II,st.ge III and st.ge IV),while t.e annealed HRDSR composit.s mainly displayed t.e st.ge III *** addit.on of carbon black increased t.e st.ain hardening rat. at.all t.e st.ain hardening st.ges in bot. of t.e ext.uded and annealed HRDSR *** t.e init.al hardening st.ge,t.e st.ain hardening rat.s of t.e ext.uded comp

关键词： Recycling Magnesium alloys chips Carbon black Nanocomposit.s Ext.usion Different.al speed rolling

Power management.unit.chip design for aut.mobile act.ve-mat.ix organic light.emit.ing diode display module

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Journal of Cent.al Sout. Universit. 2009年第4期16卷 621-628页

作者： kim J H PARK J H kim J H CAO t.V LEE t.Y BAN H J YANG K kim H G HA P B kim Y H Depart.ent.of Elect.onic Engineering Changwon National University 9 Sarim-Dong Changwon 641-773 Korea Denso PS Elect.onics Corporat.on 47 Seongsan-Dong Changwon 641-315 Korea

A power management.unit.（PMU） chip supplying dual panel supply volt.ge, which has a low elect.o-magnet.c int.rference （EMI） charact.rist.c and is favorable for miniat.rizat.on, is designed. A t.o-phase charge pump circuit.using ext.rnal pumping capacit.r increases it. pumping current.and works out.t.e charge-loss problem by using bulk-pot.nt.al biasing circuit. A low-power st.rt.up circuit.is also proposed t. reduce t.e power consumpt.on of t.e band-gap reference volt.ge generat.r. And t.e ring oscillat.r used in t.e ELVSS power circuit.is designed wit. logic devices by supplying t.e logic power supply t. reduce t.e layout.area. t.e PMU chip is designed wit. MagnaChip＇s 0.25 μ high-volt.ge process. t.e driving current. of ELVDD and ELVSS are more t.an 50 mA when a SPICE simulat.on is done.

关键词： DC-DC convert.r AMOLED charge pumping power management.unit.(PMU) dual panel supply volt.ge

Fast.reconst.uct.on of digit.l holograms for ext.nded dept.s of field

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Chinese Opt.cs Let.ers 2016年第7期14卷 34-37页

作者： P.W.M.t.ang t.-C.Poon t.kim Y.S.kim Depart.ent.of Elect.onic Engineering City University of Hong Kong Bradley Depart.ent.of Elect.ical and Comput.r Engineering Virginia Tech Dept.of Opt.cal Engineering Sejong University

Past.research has demonst.at.d t.at.a st.t.c, t.ree-dimensional （3D） object.scene can be direct.y recorded as a complex digit.l hologram. However, numerical reconst.uct.on of t.e object.scene, which may comprise mult.ple sect.ons locat.d at.unknown dist.nces from t.e hologram, is a complicat.d and comput.t.on-int.nsive process. t. t.e best.of our knowledge, we propose, for t.e first.t.me, a low complexit. met.od t.at.is capable of recon- st.uct.ng a complex hologram, such t.at.sect.ons at.different.dept.s in t.e 3D object.scene can be aut.mat.cally reconst.uct.d at.t.e correct.focal dist.nces and merged int. a single image for an ext.nded dept. of field. We demonst.at. an order of magnit.de increase of t.e dept. of field for binary object.. Wit. t.e use of a graphical processing unit. t.e reconst.uct.on of a 512 × 512 complex hologram can be accomplished in about.100 ms, equivalent.t. around 10 frames per second.

关键词： Lit.ography

Phase Format.on and Magnet.c Propert.es of Nanocomposit. Nd-Fe-B Adjust.d by Small Amount.of Dy and Co

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Journal of Rare Eart.s 2004年第z2期22卷 89-94页

作者： t.S Jang t.W Lim H S Aum D H Lee M B kim Division of Mat.rials and Chemical Engineering Sun Moon UniversityKorea Division of Materials and Chemical EngineeringSun Moon UniversityKorea Division of Mechanical EngineeringSun Moon University 100 Kalsan LiTangjung MyonAsan CityChoongnam 336-708Korea Division of Materials and Chemical EngineeringSun Moon UniversityKorea Division of Materials and Chemical EngineeringSun Moon UniversityKorea

In order t. improve and st.bilize t.e magnet.c propert.es of nanocomposit. Nd2Fe14B/α-Fe magnet.c alloys by a composit.onal adjust.ent. small amount.of Dy and/or Co was added t. Nd9Fe84B7 alloys. Dt. analysis on t.e amorphous of t.e alloys t.ok place as t.e soft.magnet.c phases were cryst.llized, and t.en t.e hard magnet.c Nd2Fe14B was precipit.t.d from t.em. While α-Fe and a met.st.ble 1:7 (t.Cu7-t.pe) phase were formed simult.neously in Dy and Co-free alloys, t.ey were cryst.llized separat.ly at.different.t.mperat.res aft.r Dy or Co was added. t.is phase separat.on occurred more clearly in t.e Dy-t.eat.d alloys and t.e ot.er soft.magnet.c phase Fe3B was also st.bilized by Dy and/or Co. t.e 1: 7 phase t.at.was st.bilized by Dy and/or Co was not.eliminat.d at.700 ℃, decreasing magnet.c propert.es of t.e alloys. It.was event.ally disappeared above 725 ℃, but.Fe3B was not.eliminat.d even at.750 ℃ when Dy was added more t.an 0.5 at. or Co was added more t.an 2.0 at.. Amount.of Nd2Fe14B in t.e alloys t.nded t. increase as Dy addit.on increased,whereas Co addit.on did not.lead t. any appreciable change in t.e rat.o of α-Fe and Nd2Fe14B. Moreover, Dy addit.on apparent.y increased coercivit. of an alloy while Co addit.on had a beneficial effect.on remanence. t.e grains in t.e Dyt.eat.d alloys were usually finer t.an t.ose in t.e Co-t.eat.d alloys. t.e grain size of bot. α-Fe and Nd2Fe14B in t.e alloys exhibit.ng mr ≥ 0.72 was in t.e range of 20 ～ 40 nm or even larger 50 nm, which is larger t.an t.e t.eoret.cal opt.mum size ( ～ 10 nm). t.pical magnet.c propert.es obt.ined from a Nd7.5Dy1.5Fe82.5Co1.5B7 alloy annealed for 12 min at.725 ℃were iHc=4.85 kOe, Br= 11.32 kG, (BH)max = 15.73 MGOe, and mr=0.73.

关键词： nanocomposit. Nd-Fe-B magnet.c propert.es remanence coercivit.