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DEFORMATION　AND　FRACTURE　OF　TiAl　PST　CRySTALS　UNDER　MONOTONIC　AND　CyCLIC　LOADING

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Acta Metallurgica Sinica(English Letters) 1995年第Z1期8卷 329-338页

作者： y.Umakoshi T. Nakano and H .y. yasuda (Department of Materials Science and Engineering, Faculty of Engineering, Osaka University, 2-1, yamada-Oka, Suita, Osaka 565 Japan) Osaka Univ Osaka Japan

Plastic behaviour of TiAl polysynthetically twinned (PST) crystals is reviewed to show our knowledge and understanding for receiving a good combination of strength and ductility of two phase TiAl alloys under monotonic and cyclic loading conditions. Anisotropy and mechanism of strength, ductility, toughness. cyclic hardening and fatigue life are described focusing on the effect of lamellar structure.

关键词： Fatigue. Deformation TiAl Intermetallic Compound

Measurements on diproton emission from the break-up channels of ^(23)Al and ^(22)Mg

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Science China(Physics,Mechanics & Astronomy) 2011年第S1期54卷 18-23页

作者： TOGANO y AOI N BABA H HONDA T OKADA K HARA y IEKI K ISHIBASHI y ITOU y IWASA N KANNO S KAWABATA T KIMURA H KONDO y KURITA K KUROKAWA M MORIGUCHI T MURAKAMI H OISHI H OTA S OZAWA A SAKURAI H SHIMOURA S SHIODA R TAKESHITA E TAKEUCHI S yAMADA K yAMADA y yasuda y yONEDA K MOTOBAyASHI T Institute of Physical and Chemical Research (RIKEN) Wako Saitama 351-0198 Japan Department of Physics Rikkyo University Japan Institute of Physics University of Tsukuba Ibaraki Japan Department of Physics Tohoku University Japan Center for Nuclear Study (CNS) University of Tokyo Japan Department of Physics University of Tokyo Japan

Two-proton relative momentum distributions from the break-up channels 23Al→p+p+21Na and 22Mg→p+p+20Ne at an energy of 60-70 A MeV have been measured together with two-proton opening angles at the projectile fragment separator beamline (RIPS) in the RIKEN Ring Cyclotron Facility. The results demonstrate the existence of diproton emission component from single-step 2He for highly excited 23Al and 22Mg.

关键词： diproton emission proton-rich nuclei 23Al and 22Mg

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数字移动卫星通信系统的技术设计和业务

电信快报 1991年第2期 6-11页

作者： yasuda,y 王忆

The optimal stent pusher position to achieve successful ureteral stent insertion under fluoroscopic guidance

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Asian Journal of Urology 2024年第2期11卷 311-315页

作者： Makoto Taguchi Kaneki yasuda Hidefumi Kinoshita Department of Urology Osaka Saiseikai Izuo Hospital Based on Social Welfare Organization“Saiseikai”Imperial Gift Foundation Inc.OsakaJapan Department of Urology and Andrology Kansai Medical UniversityHirakataOsakaJapan

Objective: To examine factors to predict the optimal stent pusher position when inserting ureteral stents under ***: We retrospectively reviewed 327 patients who underwent ureteral stent insertion. We considered the pubic bone as a useful anatomical landmark to insert ureteral stents under fluoroscopic guidance. Thus, we categorized patients into three groups (proximal, middle, and distal groups) according to the position of the radiopaque tip of the push catheter when inserting the ureteral stent. Success was defined as a completely curled ureteral stent tail. We compared stent insertion success rates among the three groups. A multivariate analysis was performed to identify the factors affecting stent insertion ***: In men, 36 (63.2%) cases were deemed successful in the proximal group compared with 40 (80.0%) cases in the middle group and 12 (20.7%) cases in the distal group (pysis, the stent pusher position was the most significant factor influencing successful stent insertion (men: odds ratio 6.00, 95% confidence interval 2.66-13.51, pymphysis is the optimal position for the radiopaque tip of the pusher when inserting ureteral stents under fluoroscopic guidance.

关键词： Stent Cystoscopy Fluoroscopy Ureter

电力电容器绝缘系统油浸全聚丙烯薄膜的介质特性

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电力电容器与无功补偿 1980年第1期 47-53页

作者： S.yasufuku T.Umemura y.yasuda

我们研究了目前在公司生产中采用的合成油浸全聚丙烯薄膜介质的电力电容器绝缘系统。在低电场下介质测量的结果能够以聚丙烯薄膜与芳香合成液体的化学相互作用来解释。这些研究证明了在适合电压广阔范围工作的、具有优良介质特性的电力... 详细信息

我们研究了目前在公司生产中采用的合成油浸全聚丙烯薄膜介质的电力电容器绝缘系统。在低电场下介质测量的结果能够以聚丙烯薄膜与芳香合成液体的化学相互作用来解释。这些研究证明了在适合电压广阔范围工作的、具有优良介质特性的电力电容制造中是十分有用的。

关键词：电力电容器聚丙烯薄膜绝缘系统油浸介质特性

Ren-integrable and ren-symmetric integrable systems

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Communications in Theoretical Physics 2024年第3期76卷 62-69页

作者： S y Lou School of Physical Science and Technology Ningbo UniversityNingbo315211China

A new type of symmetry,ren-symmetry,describing anyon physics and corresponding topological physics,is ***-symmetry is a generalization of super-symmetry which is widely applied in super-symmetric physics such as super-symmetric quantum mechanics,super-symmetric gravity,super-symmetric string theory,super-symmetric integrable systems and so *** and Grassmann numbers are,in some sense,dual conceptions,and it turns out that these conceptions coincide for the ren situation,that is,a similar conception of ren-number(R-number)is devised for *** particular,some basic results of the R-number and ren-symmetry are exposed which allow one to derive,in principle,some new types of integrable systems including ren-integrable models and ren-symmetric integrable *** examples of ren-integrable KdV-type systems and ren-symmetric KdV equations are explicitly given.

关键词： symmetries integrable systems anyon physics extended supersymmetry ren-symmetry

Distinct Electrical and Mechanical Responses of a Cu-10Fe Composite Prepared by Hot-Pressed Sintering and Post Treatment

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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 255-265页

作者： X.y.yue S.y.Peng X.Zhang C.N.He y.Z.Tian Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials Tianjin UniversityTianjin300350China Research Centre for Metallic Wires Northeastern UniversityShenyang110819China

A Cu-10wt%Fe composite was prepared through hot-pressed sintering,and the material was subsequently solution *** hot-pressed sintered and solution treated materials were rolled and *** precipitation behavior and performance changes were systematically studied by using scanning electron microscopy and transmission electron *** contrast to the hot-pressed sintered specimen,the solution treatment significantly affects the thermal stability and properties of the Cu-10wt%Fe *** Cu-10wt%Fe composite was prepared after solid solution,cold rolling and aging at 773 K for 1 h,and it obtained excellent tensile strength of 494 MPa,uniform elongation of 16.3%,electrical conductivity of 51.1%IACS and softening temperature of 838 *** for the distinct difference in thermal stability and properties between hot-pressed sintered and solution treated specimens were *** findings provide a theoretical basis for designing high-performance Cu-based in-situ composites by post treatment.

关键词： Cu-Fe composite Hot-pressed sintering Thermal stability Strength Electrical conductivity

Thermally activated delayed fluorescence carbazole-triazine dendrimer with bulky substituents

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Aggregate

Aggregate 2024年第1期5卷 236-243页

作者： Hiroki Ikebe Kohei Nakao Eri Hisamura Minori Furukori yasuo Nakayama Takuya Hosokai Minlang yang Guanting Liu Takuma yasuda Ken Albrecht Interdisciplinary Graduate School of Engineering Sciences Kyushu UniversityFukuokaJapan Institute for Materials Chemistry and Engineering Kyushu UniversityKasugaJapan Department of Pure and Applied Chemistry Graduate School of Science and TechnologyTokyo University of ScienceNodaChibaJapan National Metrology Institute of Japan(NMIJ) National Institute of Advanced Industrial Science and Technology(AIST)TsukubaIbarakiJapan Institute for Advanced Study Kyushu UniversityNishi-kuFukuokaJapan

Carbazole-triazine dendrimers with a bulky terminal substituent were synthesized,and the thermally activated delayed fluorescence(TADF)property was *** to unsubstituted carbazole dendrimers,dendrimers with bulky terminal substituents showed comparable to better photoluminescence quantum yields(PLQy)in neat ***(PF)-substituted dendrimers showed the highest PLQy of 81%,a smallΔEst of 0.06 eV,and the fastest reverse intersystem crossing(RISC)rate of∼1×10^(5 )s^(−1) compared to other *** measurements of dendrimers and dendrons(fragments)indicate that the close proximity of the triplet energy of phenylfluorene-substituted carbazole dendrons(^(3)LE)to that of phenylfluorene-substituted dendrimers(^(1)CT,^(3)CT)contributes to RISC promotion and improves TADF *** modification fine-tunes the energy level and suppresses intermolecular interactions,and this study provides a guideline for designing efficient solution-processable and non-doped TADF materials.

关键词： dendrimer OLED TADF 1 INTRODUCTION Thermally activated delayed fluorescence(TADF)materials which are inexpensive and highly efficient alternatives to fluorescent

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On B(5,20)2-Groups

Algebra Colloquium 2024年第3期31卷 429-440页

作者： E.A.Alhassan y.L.Tan y.Li School of Mathematical Sciences Jiangsu UniversityZhenjiangJiangsu 212013China Department of Mathematics Brock UniversitySt.CatharinesOntario L2S 3A1Canada

A finite group G is said to be a B(n,k)group if for any n-element subset[a_(1),…,a_(n)]of G,|{a_(i)a_(j)|1≤i,j≤n}|≤*** is of interest to characterize the structure of B(n,k)groups for n(n+1)/2≤k≤n^(2)-*** B(5,k)groups for 15≤k≤19 have been investigated by several *** this paper,we give a complete characterization of B(5,20)2-groups by showing there are five classes of such groups which are nontrivial and nonabelian.

关键词： B(n,k)groups small squaring property central extension GAP