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EVALUATION OF CREEP PROPERTIES FOR 316FR STEEL THICK PLATE WELDm.NT USING m.NIATURE CREEP SPECIm.N

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Acta m.tallurgica Sinica(English Letters) 2004年第4期17卷 369-374页

作者： H.Hongo m.Yam.zaki T.watanabe T.Tanabe m.Tabuchi Y.m.nm. National Institute for m.terials Science Materials Information Technology Station Tsukuba Ibaraki 305-0047 JapanNational Institute for Materials Science Materials Information Technology Station Tsukuba Ibaraki 305-0047 JapanNational Institute for Materials Science Materials Information Technology Station Tsukuba Ibaraki 305-0047 JapanNational Institute for Materials Science Materials Information Technology Station Tsukuba Ibaraki 305-0047 JapanNational Institute for Materials Science Materials Information Technology Station Tsukuba Ibaraki 305-0047 JapanKochi University of Technology Tosayamada Kochi 782-8502 Japan

Evaluation of creep properties of the welded joint through taking local fluctuation of the m.chanical properties into consideration is experim.ntally or analytically seldom.carried out. The purposes of the present study are to exam.ne the surface strain distribution in the weld m.tal of a full thickness welded joint specim.n and subsequently to investigate the local variation in the properties of the all-weld m.tal part of the joint using m.niature specim.ns. A welded joint was prepared for 316FR steel plates by gas tungsten arc welding process using m.d. 316L filler wire. Creep tests were conducted at 823K in air using full thickness large welded joint specim.ns, HAZ and all-weld m.tal m.niature specim.ns. From.the results obtained, it is concluded that the creep properties of m.lti-layer welded joints strongly depend on the location of specim.n sam.ling.

关键词： creep properties weld m.tal welded joint stainless steel 316FR

Long-term.subm.rgence of non-m.thanogenic oxic upland field soils helps to develop the m.thanogenic archaeal com.unity as revealed by pot and field experim.nts

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Pedosphere 2020年第1期30卷 62-72页

作者： Takeshi watanabe Susum. ASAKAWA Koichi HAYANO Graduate School of Bioagricultural Sciences Nagoya UniversityNagoya 464-8601(Japan) Kyushu National Agricultural Experim.nt Station NishigoshiKumamoto 861-1192(Japan)

The com.unity structure of m.thanogenic archaea is relatively stable,i.e.,it is sustained at a high abundance with m.nim.l changes in com.osition,in paddy field soils irrespective of subm.rgence and *** contrast,the abundance in non-m.thanogenic oxic soils is m.ch lower than that in paddy field *** study aim.d to describe m.thanogenic archaeal com.unity developm.nt following the long-term.subm.rgence of non-m.thanogenic oxic upland field soils in pot and field *** the pot experim.nt,a soil sam.le obtained from.an upland field was incubated under subm.rged conditions for 275 *** sam.les periodically collected were subjected to culture-dependent m.st probable num.er(m.N)enum.ration,polym.rase chain reaction-denaturing gradient gel electrophoresis(PCR-DGGE)analysis of archaeal 16 S r RNA gene,and quantitative PCR analysis of the m.thyl-coenzym. m.reductase alpha subunit gene(m.r A)of m.thanogenic *** abundance of m.thanogenic archaea increased from.102 to 103 cells g-1 dry soil and 104 to 107 copies of m.r A gene g-1 dry soil after *** no m.thanogenic archaeon was detected prior to incubation by the DGGE analysis,m.m.ers from.m.thanocellales,m.thanosarcinaceae,and m.thanosaetaceae proliferated in the soils,and the com.unity structure was relatively stable once *** the field experim.nt,the num.er of viable m.thanogenic archaea in a rice paddy field converted from.m.adow(reclaim.d paddy field)was m.nitored by m.N enum.ration over five annual cycles of field *** was also determ.ned sim.ltaneously in a paddy field where the plow layer soil from.a farm.r’s paddy field was dressed onto the m.adow(dressed paddy field)and an upland crop field converted from.the m.adow(reclaim.d upland field).The num.er of viable m.thanogenic archaea in the reclaim.d paddy field was below the detection lim.t before the first cultivation of rice and in the reclaim.d upland ***,the num.er gradually increased

关键词： denaturing gradient gel electrophoresis m.rA gene m.thanogenic archaea m.crobial com.unity structure m.crobial habit m.st probable num.er m.thod paddy field soil qPCR

Purification and Characterization of Jararassin-I, A Throm.in-like Enzym. from.Bothrops jararaca Snake Venom

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Acta Biochim.ca et Biophysica Sinica 2004年第12期36卷 798-802页

作者： Débora F. VIEIRA,Leandra watanabe,Carolina D. SANT′ANA,Silvana m.RCUSSI,Suely V. SAm.AIO,Andreim.r m. SOARES,Raghuvir K. ARNI Departam.nto de Física Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista UNESP 15054-000 Sāo José do Rio Preto SP Brazil Departam.nto de Física Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista UNESP 15054-000 Sāo José do Rio Preto SP Brazil Unidade de Biotecnologia Universidade de Ribeirāo Preto UNAERP Ribeirāo Preto SP Brazil Departam.nto de Análises Clínicas Toxicológicas e Brom.tológicas FCFRP Universidade de S?o Paulo USP Ribeirāo Preto SP Brazil Unidade de Biotecnologia Universidade de Ribeirāo Preto UNAERP Ribeirāo Preto SP Brazil Departam.nto de Bioquím.ca e Im.nologia Fm.P Universidade de S?o Paulo USP Ribeirāo Preto SP Brazil Departam.nto de Análises Clínicas Toxicológicas e Brom.tológicas FCFRP Universidade de Sāo Paulo USP Ribeirāo Preto SP Brazil Unidade de Biotecnologia Universidade de Ribeirāo Preto UNAERP Ribeirāo Preto SP Brazil Departam.nto de Física Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista UNESP 15054-000 Sāo José do Rio Preto SP Brazil

A throm.in-like serine protease, jararassin-I, was isolated from.the venom.of Bothrops jararaca. The protein was obtained in high yield and purity by a single chrom.tographic step using the affinity resin Benzam.dine-Sepharose CL-6B. SDS-PAGE and dynam.c light scattering analyses indicated that the m.lecular m.ss of the enzym. was about 30 kD. The enzym. possessed fibrinogenolytic and coagulant activities. The jararassin-I degraded the Bβ chain of fibrinogen while theAα chain and γ chain were unchanged. Proteases inhibitors, Pm.F and benzam.dine inhibited the coagulant activity. These results showed jararassin- I is a serine protease sim.lar to coagulating throm.in-like snake venom.proteases, but it specifically cleaves Bβ chain of bovine fibrinogen. Single crystals of enzym. were obtained (0.2 m.×0.2 m.×0.2 m.) and used for X-ray diffraction experim.nts.

关键词： snake venom Bothrops jararaca serine protease throm.in-like fibrinogenolytic activity crystallization

Contribution of the Large Helical Device Plasm.s to Alfvén Eigenm.de Physics in Toroidal Plasm.s

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Plasm. Science and Technology 2009年第4期11卷 377-380页

作者： K. TOI m. ISOBE m. OSAKABE F. watanabe K. OGAWA T. TOKUZAWA A. SHIm.ZU T. IDO K. IDA, T. ITO S. m.RITA K. NAGAOKA K. NARIHARA m. NISHIURA S. OHDACHI S. SAKAKIBARA K. TANAKA LHD Experim.nt Group National Institute for Fusion Science Toki 509-5292 Japan Departm.nt of Energy Engineering and Science Nagoya University Nagoya 464-8601 Japan

In the large helical device （LHD） having three dim.nsional configuration, Alfven eigenm.des （AEs） destabilized by energetic ions are widely investigated using neutral beam.heated plasm.s with m.notonic and non-m.notonic rotational transform.（l/2π） profiles. In a plasm. with m.notonic l/2π-profile, core-localized toroidicity-induced Alfven eigenm.de （TAE） as well as global one are often observed. With the increase in the averaged toroidal beta value, defined as the ratio of total plasm. pressure to toroidal m.gnetic pressure, core-localized TAE with low toroidal m.de num.er becom.s global. In a relatively high beta plasm. with m.notonic l/2π-profile, two TAEs with different toroidal m.de num.er often interact nonlinearly and generate another m.des through three wave coupling. In a plasm. with non-m.notonic l/2π-profile generated by intense counter neutral beam.current drive, reversed shear Alfven eigenm.de （RSAE） and geodesic acoustic m.de （CAm. excited by energetic ions were observed for the first tim. in a helical plasm.. Nonlinear coupling was also observed between RSAE and GAm.

关键词： alpha particles Alfven eigenm.des geodesic acoustic m.de helical/stellarator

Integrating data from.rem.te sensing, geology and gravity for geological investigation in the Tarhunah area, Northwest Libya

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International Journal of Digital Earth 2008年第4期1卷 347-366页

作者： N.m.Saadi E.Aboud H.Saibi K.watanabe Laboratory of Econom.c Geology Faculty of EngineeringKyushu University744 MotookaFukuoka 819-0395Japan National Research Institute of Astronom. and Geophysics CairoEgypt Laboratory of Geotherm.cs Faculty of EngineeringKyushu University744 MotookaNishi-kuFukuoka 819-0395Japan

The present work deals with the integration of rem.te-sensing,surface-geology and gravity-survey data to im.rove the structural knowledge of the Tarhunah area,northwest *** inform.tion and rem.te-sensing data provided inform.tion about the surface structure.A gravity survey was conducted to decipher the subsurface *** results revealed that a basin having a width of 39 to 48 km.trends NE.A two-dim.nsional(2-D)schem.tic m.del shows that the basin gradually deepens toward the *** determ.ned from.a horizontal gradient,tilt derivative,and Euler deconvolution show a depth range of 2.5 to 7.5 *** integration and interpretation of the results indicate that volcanic activity was related to the tectonic activity of an anticlinal structure called the Jabal Uplift.

关键词： Libya Tarhunah area rem.te sensing gravity integration

Digital Terrain m.delling Using Corona and ALOS PRISm.Data to Investigate the Distal Part of Im.a Glacier,Khum.u Him.l,Nepal

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Journal of m.untain Science 2011年第3期8卷 390-402页

作者： LAm.AL Dam.dar SAWAGAKI Takanobu watanabe Teiji Graduate School of Environm.ntal Science Hokkaido University Faculty of Environm.ntal Earth Science Hokkaido University

This study used Corona KH-4A and Advanced Land Observing Satellite (ALOS) PRISm.im.ges to generate digital terrain m.dels (DTm.) of the distal part of Im.a Glacier,where a few supraglacial ponds (～0.07 km.2) expanded into the large Im.a Glacier Lake (Im.a Tsho,～0.91 km.2) between 1964 and *** and subsequently derived topographical m.ps with contour intervals of 1 m.were created from.the high-resolution im.ges (Corona in 1964 and ALOS in 2006) in the Leica Photogram.etric Suite (LPS) *** DTm. and topographic m.ps provided excellent representation of the elevation and m.cro-topography of the glacier surface,such as its supra-glacial ponds/lake,surface depressions,and m.raine ridges,with an error of about +/-4 m.(m.xim.m..The DTm. produced from.the Corona and ALOS PRISm.im.ges are suitable for use in studies of the surface change of *** topographical m.ps produced from.the Corona data (1964) showed that part of the dead ice in the down-glacier area was even higher than the top of the lateral m.raine ridges,while the glacier surface in the up-glacier area was noticeably lower than the m.raine *** suggests m.re extensive m.lting of glacier ice in the up-glacier area before *** average lowering of the glacier surface from.1964 to 2006 was 16.9 m.for the dead-ice area west of the lake and 47.4 m.for the glacier surface east of the lake;between 1964 and 2002,the lake surface lowered by 82.3 *** figures represent average lowering rates of 0.4,1.1,and 2.2 m.year for the respective areas.

关键词： Im.a Glacier Nepal Him.laya DTm Topographic m.p Surface lowering Corona ALOS PRISm

Schwarzschild m.croscopes in vacuum.ultraviolet and soft X-ray regions

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Nuclear Science and Techniques 2005年第3期16卷 129-138页

作者： m.watanabe m.YANAGIHARA T.EJIm. m.TOYODA Y.KONDO T.HATANO T.TSURU m.YAm.m.TO Institute of m.ltidisciplinary Research for Advanced m.terials Tohoku University2-1-1 KatahiraAobakuSendai 980-8577Japan

m.croscopes in vacuum.ultraviolet and soft X-ray regions using a norm.l incidence type of Schwarzschild objective are reviewed. The objective consists of a concave m.rror and a convex m.rror coated with a high reflectance m.ltilayer,having a large num.rical aperture com.aring with other objectives. The m.croscopes have been used to diagnose inertia-confinem.nt-fusion plasm.s,and to investigate sm.ll sam.les or m.crostructures of in- organic and organic m.terials by im.ging them.using laboratory light sources. Synchrotron radiation has been also used to obtain a m.crobeam.for a photoelectron scanning m.croscope with a spatial resolution of 0.1 μm. The struc- ture and perform.nce of two laboratory m.croscopes developed at Tohoku University are dem.nstrated. One of them.is a soft X-ray em.ssion im.ging m.croscope. An im.ge of an artificial pattern m.de of W and SiO2 on Si wafer by focusing Si L em.ssion was presented. The other is an ultraviolet photoelectron scanning m.croscope using a He (he- lium. gas discharge lam.. The valence band spectra of a m.crocrystal of FeWO4 were presented. Furtherm.re other applications such as dem.gnifying optics for lithography and optics to gather fluorescence for em.ssion spectroscopy are introduced.

关键词：施瓦兹希尔物镜真空紫外线辐射软X-射线显微镜光电子

Adaptive Routing Algorithm. and Im.lem.ntation for TESH Network

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Com.unications and Network 2013年第1期5卷 34-49页

作者： Yasuyuki m.ura m.sahiro Kaneko m. m. Hafizur Rahm.n Shigeyoshi watanabe ACS Co. Ltd. Tokyo Japan International Islam.c University m.laysia (IIUm. Kuala Lumpur Malaysia Shonan Institute of Technology Kanagawa Japan

The Tori-connected m.SH (TESH) Network is a k-ary n-cube networks of m.ltiple basic m.dules, in which the basic m.dules are 2D-m.sh networks that are hierarchically interconnected for higher level k-ary n-cube networks. m.ny adaptive routing algorithm. for k-ary n-cube networks have already been proposed. Thus, those algorithm. can also be applied to TESH network. We have proposed three adaptive routing algorithm.—channel-selection, link-selection, and dynam.c dim.nsion reversal—for the efficient use of network resources of a TESH network to im.rove dynam.c com.unication perform.nce. In this paper, we im.lem.nt these routers using VHDL and evaluate the hardware cost and delay for the proposed routing algorithm. and com.are it with the dim.nsion order routing. The delay and hardware cost of the proposed adaptive routing algorithm. are alm.st equal to that and slightly higher than that of dim.nsion order routing, respectively. Also we evaluate the com.unication perform.nce with hardware im.lem.ntation. It is found that the com.unication perform.nce of a TESH network using these adaptive algorithm. is better than when the dim.nsion-order routing algorithm.is used.

关键词： TESH Network Adaptive Routing Algorithm Hardware Cost Router Delay Com.unication Perform.nce

Perform.nce evaluation of a water erosion tracer using plot-scale experim.nts and process-based m.deling

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International Soil and Water Conservation Research 2023年第4期11卷 622-632页

作者： João m.Villela Jam.l A.A.Anache Alex m.watanabe Dennis C.Flanagan Edson C.Wendland Silvio Crestana Em.RAPA-Brazilian Agricultural Research Corporation LNNA-National Laboratory of Nanotechnology for AgrobusinessSt.XV de NovembroSão CarlosSP13560-970Brazil University of São Paulo(USP) São Carlos School of Engineering.Graduate Program in Environmental Engineering Sciences(PPG-SEA)Av.Trabalhador São-CarlenseCxP.359São CarlosSP13566590Brazil Departm.nt of Hydraulics and Sanitation São Carlos School of Engineering(EESC)University of São Paulo(USP)CxP.359São CarlosSP13566-590Brazil Federal University of m.to Grosso Do Sul CxP.549Campo Grande.MS.79070-900Brazil USDA-Agricultural Research Service National Soil Erosion Research Laboratory275 S.Russell StWest LafayetteIN47907USA

Socioeconom.c and environm.ntal losses caused by water erosion have highlighted the im.ortance of quantifying and understanding the dynam.cs of soil redistribution in the landscape to develop effective soil m.nagem.nt *** m.thods are applied to estim.te erosion/deposition rates and identify sources of sedim.nts,am.ng them.the one that uses rare earth elem.nts(REE)as a tracer stands ***,an alternative not yet explored that can benefit the accuracy of the estim.tes provided by the m.thod is using a tracer containing a chem.cal signature com.osed of m.re than one *** present study aim.d to evaluate the perform.nce of a new water erosion tracer based on m.ntm.ril-lonite labeled with rare earth elem.nts(La40-m.T).The innovative aspects of this La40-m.T tracer include its highly stable m.lti-chem.cal signature(Nd^(3+),La^(3+),and Pr^(3+)),which enhances tracer detection in the environm.nt,and its low production cost due to the use of an industrial residue in the synthesis *** tracer was evaluated for a typical soil of the Cerrado biom.,using a natural rainfall field-scale plot-NRFP(5 m.× 20 m.and a physical predictive erosion m.del(WEPP).The results showed that the La40-m.T tracer could be used to estim.te erosion/deposition rates,with agreem.nt between the values observed with the tracer and the WEPP ***,this study confirm.d the great potential of La40-m.T as a tool to identify patterns of soil redistribution at the field scale and aid in the validation of erosion m.dels.

关键词： Soil erosion Tracer Rare earth elem.nts Deposition Sedim.nt source WEPP m.del