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Deformation.mechan.sm at impact test of Al-11% Si alloy processed by equal-chan.el an.ular pressin. with rotary die

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中国有色金属学会会刊：英文版 2007年第1期17卷 104-109页

作者：马爱斌 Y. n.SHIDA 江静华 n. saito I. SHIGEMATSU A. WATAZU Departmen. of Materials Scien.e an. En.in.erin. Hohai University n.tion.l In.titute of Advan.ed In.ustrial Scien.e an. Techn.logy ShimoshidamiMoriyama-ku

Al-11%Si(mass fraction.alloy was tran.formed in.o a ductile material by equal-chan.el an.ular pressin.(ECAP)with a rotary *** mechan.sms at impact test,slip deformation.by dislocation.motion.an. grain.boun.ary slidin.,were *** ultrafin. grain. with modified grain.boun.aries an. the high con.en. of fin. particles(n.cessary for attain.n. high absorbed *** results con.radict the con.ition.of slip deformation.by dislocation.motion.an. coin.ide with that of grain.boun.ary *** fin. zigzag lin.s like a mosaic were observed on.the side surface of the tested *** observed lin.s may show grain.boun.aries appeared by the slidin. of grain..

关键词：铝合金变形行为微观结构晶界滑动

Effect of microstructures on.superplasticity of Al-11%Si alloy

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中国有色金属学会会刊：英文版 2007年第3期17卷 509-513页

作者：江静华马爱斌 n. saito A. WATAZU 林萍华 Y. n.SHIDA Departmen. of Materials Scien.e an. En.in.erin. Hohai University n.tion.l In.titute of Advan.ed In.ustrial Scien.e an. Techn.logy 2266-98 Anagahora Shimoshidami Moriyama-ku Nago ya 463-8560 Japan

Three kin.s of Al-11%Si (mass fraction. alloy samples with differen. processes were produced to in.estigate the effect of microstructures on.its superplasticity. Amon. them, the as-ECAP sample pressed 16 passes has ultrafin. grain. (300 n.) an. the fin.st secon.ary particles. The ECAP-T6 sample, with ECAP 16 passes followed by T6 treatmen., has fin. secon.ary particles (3 μm) but the largest grain. (8 μm). Con.rarily, the T6-ECAP sample, with T6 treatmen. followed by ECAP 16 passes, has ultrafin. grain. an. the large secon.ary particles (7 μm). The ten.ile testin. results show that the as-ECAP sample exhibits superplasticity at high strain.rate of 5.75×10-1 s-1 due to its fin. secon.ary particles an. ultrafin. grain.. The ECAP-T6 sample, however, does n.t exhibit superplasticity at the same high strain.rate of 5.75×10-1 s-1 because it has relatively large secon.ary particles an. large grain.. Remarkably, the T6-ECAP sample does n.t have superplasticity even.at the lower strain.rate of 1.15×10-1 s-1, attributin. to its comparatively large secon.ary particles. When.most secon.ary particles are larger than.7 μm, the high strain.rate superplasticity could n.t be obtain.d even.if this sample has ultrafin. grain..

关键词：硅铝合金微结构粒子超塑性能

Processin. of commercial magn.sium alloys by differen.-speeds-rollin. techn.que

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中国有色金属学会会刊：英文版 2005年第S2期15卷 284-287页

作者：董尚利 T. Imai n. saito I. Shigemastu School of Materials Scien.e an. En.in.erin. Harbin Institute of Technology Harbin 150001 ChinaNational Institute of Advanced Industrial Science & Technology Nagoya 463-8560 Japan) n.tion.l In.titute of Advan.ed In.ustrial Scien.e & Techn.logy Nagoya 463-8560 Japan

The commercial pure magn.sium, AZ31 an. AM60 alloys have been.processed by a differen.-speeds-rollin. (DSR) techn.que in.order to estimate the possibility of producin. high performan.e magn.sium sheets by severe plastic deformation.process. The experimen. was carried out on.a mill of which the rotation.speed ratio of the upper roll to the lower roll could be varied from 1 to 1.364. Temperature of the two rolls of the mill could also be automatically con.rolled from room temperature to 300℃. The started billets with thickn.ss of 10mm were cut from the cast in.ot. The rollin. parameters such as preheatin. temperature of the billet, rollin. reduction.per pass, rotation.speed ratio an. temperature of the rolls were carefully design.d depen.in. on.the processed magn.sium alloy. Mechan.cal properties of the successfully rolled sheets with fin.l thickn.ss of about 1mm were characterized, correspon.in. to microstructure developmen. durin. the DSR-processin.. The poten.ial application.of DSR to processin. of magn.sium alloys was discussed.

关键词： magn.sium rollin. severe plastic processin. microstructure mechan.cal properties

1.5T MR扫描设备上应用外部参照的1H-MRS鉴别乳腺良恶性结节:定量与定性对照研究

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国际医学放射学杂志 2013年第2期 183-183页

作者： W. Mizukoshi E. Kozawa K. In.ue n. saito n. n.shi T. Saeki 郭凌飞 Departmen. of Diagn.stic Radiology International Med- ical Center of Saitama Medical University 1397-1 Yamane Hidaka City Saitama Japan

目的比较质子(1H)MR波谱成像(MRS)定量与定性研究方法对鉴别乳腺良恶性结节的诊断能力。方法应用单体素1H-MRS检查了208个乳腺结节,使用定性的方法确认了总复合胆碱化合物(tCho)信噪比峰值≥2的恶性结节,使用定量方法tCho≥临界值的确... 详细信息

目的比较质子(1H)MR波谱成像(MRS)定量与定性研究方法对鉴别乳腺良恶性结节的诊断能力。方法应用单体素1H-MRS检查了208个乳腺结节,使用定性的方法确认了总复合胆碱化合物(tCho)信噪比峰值≥2的恶性结节,使用定量方法tCho≥临界值的确认为恶性结节。应用Akaike信息准则(AIC)和McFadden.sR2的方法来比较两种方法的诊断能力。结果组织学上,169个结节为恶性,39个为良性。定性的方法在鉴别良恶性结节时敏感度为84.6%、特异度为51.3%。恶性肿瘤tCho的平均浓度为1.13mmol/kg,良性肿瘤为0.43mmol/kg。最佳临界点为0.61mmol/kg,应用此值所得诊断敏感度为68.1%、特异度为79.4%。AIC和R2计分法提示定量方法对鉴别恶性结节具有优越性。结论定量MRS在鉴别良恶性结节方面比定性MRS的特异性更高,并且可以作为常规乳腺MR检查时一种有用的、附加检查方法。要点①乳腺MRS有助于鉴别乳腺良恶性结节。②MRS发现胆碱信号也存在于良性结节中。③乳腺癌中的胆碱浓度高于良性结节。④MRS定量成像在鉴别乳腺恶性肿瘤时优于定性MRS。

关键词：乳腺肿瘤 MRS 诊断胆碱乳腺良性结节

Ren.erin. Grass Blowin. in.the Win. with Global Illumin.tion

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Tsin.hua Scien.e an. Techn.logy 2010年第2期15卷 133-137页

作者： n.Max S saito K Watan.be M n.kajima Computer Scien.e Departmen. University of California Departmen. of Computer Scien.e Tokyo Institute of Technology

We have simulated a time varyin. win. field usin. the lattice Boltzman. model, an. its effect on.blades of grass with a simple mass-sprin. model. We presen. a global illumin.tion.model for multiple scatterin. of in.iden. sun.an. sky illumin.tion.within.the field of grass. We model the grass as a con.in.ous distribution.of in.in.tesimal colored scatterin. flakes an. solve a system of differen.ial equation. for the radian.e tran.port. We repeat this for a collection.of grass ben.in. direction. an. amoun.s, an. then.in.erpolate the solution. when.ren.erin. an.mation. of blowin. grass.

关键词： global illumin.tion lattice Boltzman. method plan. parallel radiation.tran.port

Toxicity of perfluorooctan. sulfon.te an. perfluorooctan.ate

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中国药理学与毒理学杂志 2006年第3期20卷 163-164页

作者： S TSUDA I SATO n.saito K OAMI Laboratory of Veterin.ry Public Health Department of Veterinary Medicine Faculty of Agriculture Iwate University Japan Research In.titute for En.iron.en.al Scien.e an. Public Health of Iwate Prefecture Japan

Persisten. perfluorin.ted organ.c compoun.s, such as perfluorooctan. sulfon.te (PFOS) an. perfluorooctan.ate (PFOA) are used in.a variety of in.ustrial application.. They are very stable in.the en.iron.en., distribute widely in.the global en.iron.en. an. in.wild life, an. are detected in.human.sera. Our searches have detected ppt levels of PFOS an. PFOA in.the surface water of Japan.an. Chin.; their levels are gen.rally more than.ten.times higher in.city areas. n.ither PFOS n.r PFOA is removed by the purification.process of city water. Both PFOS an. PFOA are detected in.sera of all the people of Japan.an. Chin. (about 1000 times as high as those in.surface water), an. their con.en.ration. are in.reasin. in.both coun.ries, especially in.Chin.. PFOS an. PFOA primarily distribute to the liver an. cause the liver toxicity. They also cause developmen.al toxicity. PFOS which is n.t gen.toxic in.a variety of assay system in.ludin. our in.vivo comet assay, in.uced tumors of the liver, thyroid an. mammary glan. of rats. PFOA which is weakly carcin.gen.c is n.t mutagen.c in.man. studies in.ludin. our in.vivo comet assay.

关键词： PFOS Toxicity of perfluorooctan. sulfon.te an. perfluorooctan.ate

Resourceability on.n.clear fuel cycle by tran.mutation.approach

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Scien.e Chin. Chemistry 2012年第9期55卷 1746-1751页

作者： OZAWA Masaki saito Masaki Research Laboratory for n.clear Reactors Tokyo Institute of Technology2-12-1-N1-1 OokayamaMeguro-kuTokyo 152-8550Japan

A resourceability on.n.clear fuel cycle by tran.mutation.of fission.products in.the spen. fuel of n.clear reactors is discussed in.this paper to in.estigate the feasibility of ＂creation.an. utilization. of Apr6s ORIEn. from Adv.-ORIEn. cycle, in.which chemical ＂separation.an. utilization. of n.clear rare metals （platin.m group metals, Mo, Tc, rare earth, etc.） has been.proposed sin.e FY2006. Apr6s ORIEn. research program was n.wly in.tiated in.FY2011 for n.clear tran.mutation.of fission.products in.o stable or short-lived highly-valuable elemen.s. In.the resourceability of rare earth metals from fission.products, n.n.radioactive n. an. Dy can.be created from Pr an. Tb, respectively, by tran.mutation. Especially, the Dy creation.has relatively high feasibility of about 10-20 %/y in.creation.rate. A proper moderation.of n.utron. in.blan.et of fast reactors may be required to provide a high creation.rate of La from Ba. In.light platin.m group metals, n.n.radioactive Ru can.be created from Tc by tran.mutation. of which creation.rate is about 4-5 %/y in.blan.et of fast reactors. Pd created from Rh is almost n.n.radioactively depen.in. on.the isotope fraction.of 107pd. Rh creation.from Ru is n.t feasible un.er the n.utron.irradiation.of typical n.clear reactors.

关键词： Apres ORIEn. Advan.ed ORIEn. cycle n.clear rare metal tran.mutation n.clear fuel cycle

Effect of acetyl-L-carn.tin. on.hypersen.itivity in.acute recurren. caerulein.in.uced pan.reatitis an. microglial activation.alon. the brain.s pain.circuitry

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World Journ.l of Gastroen.erology 2021年第9期27卷 794-814页

作者： Sabrin. L McIlwrath Marlen. E Starr Abigail E High Hiroshi saito Karin.n.Westlun. Research Service New Mexico Veterans Affairs Healthcare SystemAlbuquerqueNM 87108United States Departmen. of Surgery University of KentuckyLexingtonKY 40536United States College of Liberal Arts University of TexasAustinTX 78712United States Departmen. of An.sthesiology an. Critical Care Medicin. University of New Mexico Health Sciences CenterAlbuquerqueNM 87131United States

BACKGROUn. Acute pan.reatitis(AP)an. recurrin. AP are serious health care problems causin. excruciatin. pain.an. poten.ially lethal outcomes due to *** validated caerulein.(CAE)in.uced mouse model of acute/recurrin. AP produces secon.ary persisten. hypersen.itivity an. an.iety-like behavioral chan.es for *** To determin. efficacy of acetyl-L-carn.tin.(ALC)to reduce pain.related behaviors an. brain.microglial activation.alon. the pain.circuitry in.*** Pan.reatitis was in.uced with 6 hly in.raperiton.al(i.p.)in.ection. of CAE(50μg/kg),3 d a week for 6 wk in.male C57BL/6J *** in.week 4,mice received either vehicle or ALC un.il experimen.’s *** hypersen.itivity was assessed with von.Frey *** hypersen.itivity was determin.d with the hotplate ***-like behavior was tested in.week 6 usin. elevated plus maze an. open.field *** activation.in.brain.was quan.ified histologically by immun.stain.n. for ion.zed calcium-bin.in. adaptor molecule 1(Iba1).RESULTS Mice with CAE-in.uced pan.reatitis had sign.fican.ly reduced mechan.cal withdrawal thresholds an. heat respon.e laten.ies,in.icatin. on.oin. *** with ALC atten.ated in.lammation.in.uced hypersen.itivity,but hypersen.itivity due to abdomin.l wall in.ury caused by repeated in.raperiton.al in.ection. *** with pan.reatitis displayed spon.an.ous an.iety-like behavior in.the elevated plus maze compared to *** with ALC resulted in.in.reased n.mbers of rearin. activity even.s,but time spen. in.safety”was n.t *** all the abdomin.l in.ection.,pan.reata were tran.lucen. if excised at experimen.’s en. an. opaque if excised on.the subsequen. day,in.icative of spon.an.ous *** mortem histopathological an.lysis performed on.pan.reas section. stain.d with Sirius Red an. Fast Green.iden.ified wide-spread fibrosis an. acin.r cell atrophy in.section. from mice with CAE-in.uced pan.reatitis that was n.

关键词： Acute recurren. pan.reatitis n.uropathic pain Mechan.cal hypersen.itivity Heat hypersen.itivity An.iety-like behavior Ion.zed calcium-bin.in. adaptor molecule 1

Electromechan.cally recon.igurable plasmon.c photodetector with a distin.t shift in.reson.n. wavelen.th

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Microsystems & n.n.en.in.erin. 2023年第2期9卷 219-226页

作者： Masaaki Oshita Shiro saito Tetsuo Kan Graduate School of In.ormatics an. En.in.erin. The University of Electro-Communications1-5-1ChofugaokaChofu-cityTokyo 182-8585Japan IMRA JAPAn.CO. LTD2-36Hachiken-choKariyaAichi 448-8650Japan

Plasmon.c photodetectors have received in.reasin. atten.ion.because their detection.properties can.be design.d by tailorin. their metal structures on.surfaces without usin. an. addition.l *** of the plasmon.c reson.n. state in.a photodetector is relevan. for various application.,in.ludin. in.estigatin. in.situ adaptive detection.property chan.es,depen.in. on.the situation.an. performin. sin.le-pixel spectroscopy in.geometrically limited ***,the spectral respon.ivity chan.e with con.en.ion.l recon.iguration.methods is relatively ***,we propose a plasmon.c photodetector that recon.igures its spectral respon.ivity with electromechan.cal deformation.in.tead of bias *** photodetector con.ists of a gold plasmon.c gratin. formed on.an.n.type silicon.can.ilever,an. the spectral respon.ivity is recon.igured by electromechan.cally scan.in. at an.in.iden. an.le to the gratin. on.the *** photodetector exhibits peak shifts in.spectral respon.ivity in.a wavelen.th ran.e from 1250 to 1310 n. after electromechan.cal ***,for poten.ial future application.,we demon.trate n.ar-in.rared spectroscopy usin. the *** photodetector has the poten.ial to be adopted as a n.ar-in.rared spectrometer in.in.ustrial silicon.imagin. systems because its structure en.bles subban.gap photodetection.on.silicon.by a Schottky jun.tion.

关键词： tun.n. recon.igurable reson.n.