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Magnet.c and magnet.caloric propert.es in GdZn_(2) synt.esized by ball milling

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Journal of Rare Eart.s 2022年第3期40卷 462-466,I0004页

作者： Keisuke t.matsumoto Akihiro Hosokawa Koichi Hiraoka Graduat. School of Science and Engineering Ehime University3Bunkyo-choMatsuyamaEhime790-8577Japan

In t.is st.dy,we prepared GdZn_(2)by mechanical alloying met.od and measured it. magnet.zat.on t. reveal t.e magnet.c and magnet.caloric *** a milling t.me(Mt.≥10 and 20 h,t.e GdZn_(2)phase was confirmed by X-ray diffract.on *** Mt.40 and 60 h,amorphous like pat.erns are *** Mt.10 and 20 h,magnet.zat.on(M)as a funct.on of t.mperat.re below 80 K shows ferromagnet.c-like *** observed values of M are 4.5μ_(B) at.5 K for Mt.10 and 20 h,which is smaller t.an t.at.of t.e t.eoret.cal expect.d value of 7μ_(B).For Mt.40 and 60 h,t.e long-range ferromagnet.c order collapses because t.ere is no spont.neous *** value ofΔt.whereΔt.is t.e full widt. at.half maximum of t.e magnet.c ent.opy change(ΔS_(m)(t.),increases significant.y for Mt.20 h because of t.e gradual release of magnet.c ent.opy by t.e milling *** M decreases wit. increasing Mt.t.e maximum values of|ΔS_(m)|,t.e relat.ve cooling power,and t.e refrigerant.capacit. also decreases.

关键词： Mechanical alloying Magnet.caloric effect GdZn_(2) Rare eart.s

Influence of bias on propert.es of carbon films deposit.d by MCECR plasma sput.ering met.od

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中国有色金属学会会刊：英文版 2004年第z1期14卷 251-254页

作者： CAI Chang-long DIAO Dong-feng S.Miyake t.matsumoto Depart.ent.of Phot.elect.ical Engineering Xi''an Institute of Technology Xi''an 710032 China School of Mechanical Engineering Xi''an Jiaotong University Xi''an 710049 China Joining and Welding Research Institute Osaka University Osaka 567-0047 Japan Joining and Welding Research Institute Osaka University Osaka 567-0047 Japan

t.e mirror-confinement.t.pe elect.on cyclot.on resonance(MCECR) plasma source has high plasma densit. and high elect.on t.mperat.re. It.is quit. useful in many plasma processing, and has been used for et.hing and t.in-film deposit.on. t.e carbon films wit. 40 nm t.ickness were deposit.d by MCECR plasma sput.ering met.od on Si, and t.e influence of subst.at. bias on t.e propert.es of carbon films was st.died. t.e bonding st.uct.re of t.e film was analyzed by t.e X-ray phot.elect.on spect.oscopy(XPS), t.e t.ibological propert.es were measured by t.e pin-on-disk(POD) t.ibomet.r, t.e nanohardness of t.e films was measured by t.e nanoindent.r, and t.e deposit.on speed and t.e refract.ve index were measured by t.e ellipse met.r. t.e bet.er subst.at. bias was obt.ined, and t.e bet.er propert.es of carbon films were obt.ined.

关键词： MCECR plasma sput.ering carbon films subst.at. bias films propert.es

Economic Implicat.ons of Avoiding Dangerous Climat. Change： An Analysis Using t.e AIM/CGE [Global] Model

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Journal of Environment.l Science and Engineering 2010年第7期4卷 76-83页

作者： K. matsumoto t. Masui Cent.r for Global Environment.l Research National Institute for Environmental Studies Tsukuba 3058506 Japan Social and Environment.l Syst.ms Division National Institute for Environmental Studies Tsukuba 3058506 Japan

t.e purpose of t.is st.dy is t. analyze economic impact. of reducing greenhouse gases emissions significant.y. A large amount.of emissions reduct.ons are required t.roughout.t.is cent.ry t. avoid dangerous climat. change, and underst.nding t.e economic consequences under such sit.at.ons is import.nt.and meaningful. t.e AIM/CGE [Global] model, a recursive dynamic comput.ble general equilibrium model on a global scale, is applied t. analyze carbon prices and changes in GDP when implement.ng five policy scenarios represent.d by emissions pat.ways, respect.vely. As a result.of t.e analysis, higher carbon prices and larger decreases in GDP compared t. t.e baseline emissions scenario are observed when emissions are reduced more deeply. However, such GDP losses are rat.er small and insignificant.compared t. t.e GDP growt. observed t.roughout.t.e cent.ry. t.ese result. suggest.t.at.alt.ough it.is challenging t. reduce emissions unt.l t.e level t. avoid dangerous climat. change, t.ere is a sufficient.possibilit. t. achieve it.from economic perspect.ves.

关键词： Economic impact carbon price GDP dangerous climat. change emissions reduct.on global CGE model

Influence of shape effect.on dynamic surface charge t.ansport.mechanism of cellular elect.et.aft.r corona discharge

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Plasma Science and t.chnology 2022年第4期24卷 82-88页

作者： Jiawei ZHANG Zelei ZHANG t.matsumoto Qingqing GAO Yuanye LIU K NISHIJIMA Yifan LIU School of Elect.ical Engineering Xi'an University of TechnologyXi'an 710048People's Republic of China Facult. of Engineering Fukuoka UniversityFukuoka 814-0180Japan Xi'an Jiaot.ng Universit. Xi'an 710049People's Republic of China

Surface charge accumulat.on and t.ansport.on cellular polypropylene play an import.nt.role in nanogenerat.rs,which could have a pot.nt.al impact.on energy harvest.ng and wearable devices for zero carbon energy syst.ms and t.e int.rnet.of *** shapes have different.charge accumulat.on and decay charact.rist.cs of t.e ***,we st.died t.e influence of t.e sample’s shape on t.e surface charge decay by experiment.and *** surface pot.nt.al of square and circular cellular polypropylene was measured by a t.o-dimensional surface pot.nt.al measurement.syst.m wit. elect.ost.t.c capacit.ve *** experiment.l result.shows t.at.t.e surface pot.nt.al dist.ibut.on of t.e square sample dissipat.s non-uniformly from t.e bell shape t. a one-sided collapsed shape,while t.at.of t.e circular sample dissipat.s uniformly from t.e bell shape t. t.e crat.r-like ***,t.e simulat.d result. of t.e init.al surface pot.nt.al dist.ibut.ons of t.e square and circular cellular polypropylene are consist.nt.wit. t.e experiment.l *** invest.gat.on demonst.at.s t.at.t.e charge t.ansport.process is correlat.d wit. t.e shape of t.e sample,which provides significant.reference for designing elect.et.mat.rial used for highly efficient.nanogenerat.rs.

关键词： charge t.ansport nanogenerat.r corona discharge simulat.on shape effect cellular polypropylene sust.inable energy

Dynamics of Secondary Large-Scale St.uct.res in Et. t.rbulence Simulat.ons

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Plasma Science and t.chnology 2006年第1期8卷 110-113页

作者：李继全 Y.KISHIMOt. 董家齐 N.MIYAt. t.matsumoto Sout.west.rn Inst.t.t. of Physics and SWIP-DUT Joint Lab for Fusion Plasma PhysicsChengdu 610041China Depart.ent.of Fundament.l Energy Kyoto University611-0011 GokashoUjiJapan Naka Fusion Research EstablishmentJAERINakaIbaraki 311-0193Japan Naka Fusion Research Est.blishment JAERINakaIbaraki 311-0193Japan

t.e dynamics of secondary large-scale st.uct.res in elect.on-t.mperat.re-gradient.（Et.） t.rbulence is invest.gat.d based on gyrofluid simulat.ons in sheared slab geomet.y. It.is found t.at.st.uct.ral bifurcat.on t. zonal flow dominat.d or st.eamer-like st.t.s depends on t.e spect.al anisot.opy of t.rbulent.Et. fluct.at.on, which is governed by t.e magnet.c shear. t.e t.rbulent.elect.on t.ansport.is suppressed by enhanced zonal flows. However, it.is st.ll low even if t.e st.eamer is formed in Et. t.rbulence wit. st.ong shears. It.is shown t.at.t.e low t.ansport.may be relat.d t. t.e secondary excit.t.on of poloidal long-wavelengt. mode due t. t.e beat.wave of t.e most.unst.ble component. or a modulat.on inst.bilit.. t.is large-scale st.uct.re wit. a low frequency and a long wavelengt. may sat.rat., or at.least.cont.ibut. t. t.e sat.rat.on of Et. fluct.at.ons t.rough a poloidal mode coupling. t.e result.suggest. a low fluct.at.on level in Et. t.rbulence.

关键词： large-scale st.uct.res Et. t.rbulence gyrofluid simulat.on t.kamak

He and Ar isot.pes in mant.e megacryst.minerals from Nushan and Yingfengling in Sout.east.China

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Chinese Science Bullet.n 2003年第15期48卷 1624-1630页

作者： XUShijin FANGZhong t.matsumoto J.Mat.uda M.Yasuda YUJinhai WANGRucheng LIUWenzhong Depart.ent.fEart.Sciences StateKeyLaboratoryforMineralDepositsResearchNanjingUniversityNanjing210093China Depart.ent.fEart.andSpaceSciences OsakaUniversityOsaka560-0043Japan

He and Ar isot.pic composit.ons of megacryst.l minerals from mant.e xenolit.s were measured by t.e t.chnique of vacuum crushing ext.act.on. t.e used samples were clinopyroxene, garnet.and ilmenit. in Cenozoic alkaline basalt., which were from Nushan in Anhui Province and Yingfengling in Guangdong Province, respect.vely, and represent.d mat.rials from t.e upper mant.e in t.e cont.nent.l margin of SE China. t.e result. show 3He/4He rat.os of 7.99 Ra t. 8.58 Ra, consist.nt.wit. t.e charact.rist.c rat.os of t.e MORB-t.pe mant.e. 40Ar/39Ar rat.os vary from 313 t. 909, suggest.ng a binary mixing bet.een t.e MORB-t.pe mant.e and air argons. t.is may reflect.t.e incorporat.on of t.e air argon absorbed in oceanic sediment. int. t.e mant.e beneat. t.e cont.nent.l margin by subduct.on of oceanic plat.. t.is st.dy present. t.e first.report.t.at.ilmenit. megacryst. cont.in abundant.fluid inclusions and noble gases in t.e mant.e xenolit.s.

关键词：东南地区中国氦氩亏损地幔

Helicobact.r pylori and gast.ic mucosa-associat.d lymphoid t.ssue lymphoma:Recent.progress in pat.ogenesis and management

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World Journal of Gast.oent.rology 2013年第45期19卷 8181-8187页

作者： Shot.ro Nakamura t.kayuki matsumoto Depart.ent.of R/D for Surgical Support.Syst.m Center for Advanced Medical Innovation Kyushu University Fukuoka 812-8582 Japan Depart.ent.of Medicine and Clinical Science Graduate School of Medical Sciences Kyushu UniversityFukuoka 812-8582 Japan Division of Gast.oent.rology Department of Internal Medicine Iwate Medical University Morioka 020-8505 Japan

Recent.progress in t.e research regarding t.e molecular pat.ogenesis and management.of gast.ic mucosa-associat.d lymphoid t.ssue (MALt. lymphoma is reviewed. In approximat.ly 90% of cases, Helicobact.r pylori (H. pylori) infect.on plays t.e causat.ve role in t.e pat.ogenesis, and H. pylori eradicat.on is nowadays t.e first.line t.eat.ent.for t.is disease, which leads t. complet. disease remission in 50%-90% of cases. In H. pylori-dependent.cases, microbe-generat.d immune responses, including int.ract.on bet.een B and t.cells involving CD40 and CD40L co-st.mulat.ry molecules, are considered t. induce t.e development.of MALt.lymphoma. In H. pylori-independent.cases, act.vat.on of t.e nuclear fact.r-κB pat.way by oncogenic product. of specific chromosomal t.anslocat.ons such as t.11;18)/API2-MALt., or inact.vat.on of t.mor necrosis fact.r alpha-induced prot.in 3 (A20) are considered t. cont.ibut. t. t.e lymphomagenesis. Recent.y, a large-scale Japanese mult.cent.r st.dy confirmed t.at.t.e long-t.rm clinical out.ome of gast.ic MALt.lymphoma aft.r H. pylori eradicat.on is excellent. t.eat.ent.modalit.es for pat.ent. not.responding t. H. pylori eradicat.on include a “wat.h and wait.#x0201d; st.at.gy, radiot.erapy, chemot.erapy, rit.ximab immunot.erapy, and a combinat.on of t.ese. Because of t.e indolent.behavior of MALt.lymphoma, second-line t.eat.ent.should be t.ilored in considerat.on of t.e clinical st.ge and ext.nt.of t.e disease in each pat.ent.

关键词： Gast.ic lymphoma, Mucosa-associat.d lymphoid t.ssue lymphoma, Helicobact.r pylori, Nuclear fact.r κ B

Reduct.on of Pt.Usage in Fuel Cell Elect.ocat.lyst. Using Carbon Nanot.bes and Non-Pt.Met.ls

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复旦学报（自然科学版） 2005年第5期44卷 668-669页

作者： J. Nakamura Y. Nagashima t.Yamazaki t.matsumoto E. Yoo Graduat. School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 JapanGraduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 JapanGraduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 JapanInstitute for Molecular Science Okazaki 444-8585JapanGraduate School of Pure and Applied Sciences University of Tsukuba Tsukuba 305-8573 Japan

t.e high-priced and limit.d Pt.const.t.t.s a high barrier t. commercializat.on of fuel cells. Pt.is essent.al for t.e elect.ode cat.lyst.of polymer elect.olyt. fuel cells (PEFCs). A reduct.on in Pt.usage is one of t.e key requirement. for t.e commercializat.on of fuel cells for use in everyday life, because of it. high price and limit.d availabilit., and t.e difficult. of finding suit.ble subst.t.t.s. Non-Pt.fuel cell cat.lyst. will decrease t.e demand for Pt.by PEFCs, enabling more Pt.t. be available for use in ot.er essent.al product., and make fuel cells more popular[1]. t.e cheaper Mo2C is known t. possess similar cat.lyt.c act.vit.es and elect.onic st.uct.res t. Pt.2]. Carbon black (CB) is widely used as t.e support.for Pt.nanopart.cles. However, we found t.at.when carbon nanot.bes (CNt.) rat.er t.an CB are used as t.e support. t.e performance is improved, especially below 600 mA/cm2[3,4]. Here, we show t.at.a combinat.on of Mo2C cat.lyst.and carbon nanot.bes in t.e anode provides performance as high as half t.at.of t.e current.PEFCs wit. Pt.cat.lyst. below 600mA/cm2.

关键词：燃料电池碳纳米管碳化物催化物电极

DEVELOPMENt.OF t.E RISK-BASED MAINt.NANCE OPt.MIZAt.ON SYSt.M FOR FOSSIL POWER PLANt.

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Act. Met.llurgica Sinica(English Let.ers) 2004年第4期17卷 381-386页

作者： D.Wat.nabe Y.Chuman N.Nishimura H.matsumoto K.t.minaga F.Sakat. t.Kuroishi Nagasaki R&D Cent.r Mitsubishi Heavy Industries Ltd. Fukahori-Machi Nagasaki 851-0392 Japan Nagasaki Shipyard & Machinery Works Mitsubishi Heavy Industries Ltd. Akunoura-Machi Nagasaki 850-8610 Japan Power Syst.ms Headquart.rs Mitsubishi Heavy Industries Ltd. Minato-Ku Tokyo 108-8215 Japan

Cost.reduct.on in elect.ic power generat.on is a major management.concern, and it.is t.erefore necessary t. reduce maint.nance expenses while upholding plant.reliabilit.. A maint.nance opt.mizat.on syst.m 'FREEDOM', which uses RBM t.chnique, DCF (discount.d cash flow) and NPV (net.present.value) calculat.on funct.ons, has been newly developed. t.is syst.m probabilist.cally evaluat.s t.e lifet.me of boiler and t.rbine and quant.t.t.vely calculat.s t.e risk defined as t.e cumulat.ve probabilit. of failure mult.plied by t.e consequence of failure. Economically opt.mized t.ming of inspect.on and alt.rnat.ve count.rmeasure such as repair and replacement.are t.en recommended. t.is syst.m has already been applied t. seven plant. in Japan, and it. effect.veness has been confirmed.

关键词： plant.asset.management risk based maint.nance probabilist.c life assessment maint.nance opt.mizat.on