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铕支撑液膜的迁移

江西有色金属 1992年第3期6卷 137-141页

作者： s.nakamura 倪起峰湖南稀土金属材料研究所

通过对铕用N,N-二乙基甲氨酰甲基膦酸二乙脂(CMP)饱和的支撑液膜(sLM)的迁移研究,发现铕能有效地从高氯酸盐溶液中萃取到sLM上,但不能完全被反萃到稀酸溶液中。添加癸醇可改善反萃过程并实现铕的定量迁移。利用含二异癸基磷酸和CMP组合... 详细信息

通过对铕用N,N-二乙基甲氨酰甲基膦酸二乙脂(CMP)饱和的支撑液膜(sLM)的迁移研究,发现铕能有效地从高氯酸盐溶液中萃取到sLM上,但不能完全被反萃到稀酸溶液中。添加癸醇可改善反萃过程并实现铕的定量迁移。利用含二异癸基磷酸和CMP组合的双层sLM体系可使铕由料液(0.1MHNO_3)经中间溶液(1M HCLO_4+4M NaCLO_4)迁移到产品溶液中,铕被有效地浓缩了约20倍。

关键词：铕支撑液膜迁移 CMP

采用含N,N-二乙基氨基甲酰甲基膦酸二己酯的支撑液膜迁移富集铕

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湿法冶金 1991年第2期10卷 62-66页

作者： s.nakamura 毛水和

本文研究了采用N,N-二乙基氨基甲酰甲基膦酸二己酯(CMP)浸渍过的支撑液膜(sLM)迁移富集铕。铕充分地从高氯酸溶液被萃取到sLM中,但不能有效地解吸到稀酸溶液中。加入1-癸醇能改善解吸过程从而实现铕的定量迁移。应用由二异癸磷酸和CMP... 详细信息

本文研究了采用N,N-二乙基氨基甲酰甲基膦酸二己酯(CMP)浸渍过的支撑液膜(sLM)迁移富集铕。铕充分地从高氯酸溶液被萃取到sLM中,但不能有效地解吸到稀酸溶液中。加入1-癸醇能改善解吸过程从而实现铕的定量迁移。应用由二异癸磷酸和CMP组合而成的双sLM体系,料液(0.1MHNO_3)中的铕可以通过中间液(1MHClO_4+4MNaClO_4)迁移到产品溶液(0.1MHNO_3)中,其浓缩因子约20。

关键词： CMP sLM 迁移富集铕试验

A sTUDY OF FERROELAsTIC DOMAIN sTRUCTURE WITH INCOMMENsURATE/COMMENsURATE TWIN BOUNDARIEs

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A STUDY OF FERROELASTIC DOMAIN STRUCTURE WITH INCOMMENSURATE...

sixteenth Congress of the International Union of Crystallography

作者： T.Kobayashi I.Takei K.Yamana s.nakamura M.Machida school of Pharmacy Hokuriku UniversityKanazawaJapan Industrial Research Institute of Ishikawa KanazawaJapan Department of Physics Faculty of ScienceKyushu UniversityFukuokaJapan.

The ferroelasticity of MP

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三栅调制B-A规

真空 1979年第4期 47-50页

作者： T.Kanaji s.nakamura T.Urano s.Nagata 李昌全日本神户大学工程系

研究了一种三栅调制Ｂ－Ａ规，这种规有两个附加的同心栅极，位于普通ＢＡ规的电子收集栅（Ｇ１）的内侧。内栅（Ｇ３）维持在恒定的电位，以保持恒定的光电流。通过改变Ｇ２的电位来调制离子流，但是灯丝，Ｇ１和Ｇ２之间的电位关系不... 详细信息

研究了一种三栅调制Ｂ－Ａ规，这种规有两个附加的同心栅极，位于普通ＢＡ规的电子收集栅（Ｇ１）的内侧。内栅（Ｇ３）维持在恒定的电位，以保持恒定的光电流。通过改变Ｇ２的电位来调制离子流，但是灯丝，Ｇ１和Ｇ２之间的电位关系不改变，以保持热电子流不被扰乱。在“调制”状态下的Ｓ值（即灵敏度－译者注）是３托－１（即２ ×１０－２帕－１）。没有检测到由于调制引起的电子激励气体解吸。避免从Ｇ２发射的光电子的影响是重要的。

关键词：收集极光电子差值 B-A 光电流离子流

Low-Energy spin Excitations in Detwinned Fese

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Chinese Physics Letters 2024年第6期41卷 112-118页

作者：刘瑞鲜 Mitsutaka nakamura Kazuya Kamazawa 鲁兴业 Center for Advanced Quantum studies School of Physics and AstronomyBeijing Normal UniversityBeijing 100875China J-PARC Center Japan Atomic Energy Agency(JAEA)TokaiIbaraki 319-1195Japan Research Center for Neutron science and Technology Comprehensive Research Organization for Science and SocietyTokaiIbaraki 319-1106Japan

Antiferromagnetic spin fluctuation is regarded as the leading driving force for electron pairing in high-Tc *** iron-based superconductors,spin excitations at low energy range,especially the spin-resonance mode at ER~5kBTc,are important for understanding the ***,we use inelastic neutron scattering(INs)to investigate the symmetry and in-plane wave-vector dependence of low-energy spin excitations in uniaxial-strain detwinned Fe *** low-energy spin excitations(Esuperconducting state(T9K)and the nematic state(T90 K),confirming the constant C_(2) rotational symmetry and ruling out the C_(4) mode at E≈3 meV reported in a prior INs ***,our results reveal an isotropic spin resonance in the superconducting state,which is consistent with the s±wave pairing *** slightly higher energy,low-energy spin excitations become highly *** full width at half maximum of spin excitations is elongated along the transverse *** Q-space isotropic spin resonance and highly anisotropic low-energy spin excitations could arise from dyz intra-orbital selective Fermi surface nesting between the hole pocket aroundΓpoint and the electron pockets centered at MX point.

关键词： excitation symmetry slightly

study of Neutron-Capture Reactions by High-Energy Gamma-ray spectroscopy

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Study of Neutron-Capture Reactions by High-Energy Gamma-ray ...

Regenerative medicine strategies for chronic complete spinal cord injury

作者： H.Harada s.Goko A.Kimura M.Oshima M.Koizumi K.Furutaka Y.Toh s.nakamura F.Kitatani T.Kin M.Igashira M.Mizumoto T.Katabuchi J.Hori Nuclear science and Engineering Directorate Japan Atomic Energy Agency Research Laboratory for Nuclear Reactors Tokyo Institute of Technology Research Reactor Institute Kyoto University

INTRODUCTION:Accurate neutron capture cross sections are required for the study of an innovative nuclear *** satisfy the demand,a 4πGe spectrometer was developed,and its performances were studied in the course of capture cross section measurements using time-of-flight(TOF) techniques at the electron linear accelerator of *** 4πGe spectrometer is a unique tool due to its superior energy resolution for studying properties on neutron capture reactions,not only capture cross sections but alsoγ-ray intensity distributions. Precise understanding of resonance dependence

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Neural Regeneration Research 2024年第4期19卷 818-824页

作者： shogo Hashimoto Narihito Nagoshi Masaya nakamura Hideyuki Okano Department of Orthopedic surgery Keio University School of Medicine Department of Physiology Keio University School of Medicine

spinal cord injury is a condition in which the parenchyma of the spinal cord is damaged by trauma or various *** rapid progress has been made in regenerative medicine for spinal cord injury that was previously untreatable,most research in this field has focused on the early phase of incomplete ***,the majority of patients have chronic severe injuries;therefore,treatments for these situations are of fundamental *** reason why the treatment of complete spinal cord injury has not been studied is that,unlike in the early stage of incomplete spinal cord injury,there are various inhibitors of neural ***,we assumed that it is difficult to address all conditions with a single treatment in chronic complete spinal cord injury and that a combination of several treatments is essential to target severe ***,we established a combination therapy of cell transplantation and drug-releasing scaffolds,which contributes to functional recovery after chronic complete transection spinal cord injury,but we found that functional recovery was limited and still needs further ***,for the further development of the treatment of chronic complete spinal cord injury,we review the necessary approaches to the different pathologies based on our findings and the many studies that have been accumulated to date and discuss,with reference to the literature,which combination of treatments is most effective in achieving functional recovery.

关键词： cell transplantation chronic phase complete transection regenerative medicine spinal cord injury

Non-Kramers doublet ground state in a quaternary cubic compound PrRu_(2)In_(2)Zn_(18) investigated by ultrasonic measurements

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Chinese Physics B 2024年第6期33卷 405-411页

作者：张化远 Kazuhei Wakiya Mitsuteru nakamura Masahito Yoshizawa Yoshiki Nakanish Graduate school of science and Engineering Iwate UniversityMorioka 020-8551Japan

We performed ultrasonic measurements on a quaternary cubic compound PrRu_(2)In_(2)Zn_(18) to explore the ground state properties derived from non-Kramers Γ_(3) doublet of Pr^(3+).PrRu_(2)In_(2)Zn_(18) is a quaternary derivative of the ternary compound PrRu_(2)Zn_(20) that exhibits a structural phase transition at T_s=138 *** PrRu_(2)In_(2)Zn_(18),the Zn atoms at the 16c site in PrRu_(2)Zn_(20) are selectively replaced by In atoms.A monotonic increase was observed in the temperature dependence of elastic constants C_L=(C_(11)+2C_(12)+4C_(44))/3 and C_(T)=(C_(11)-C_(12)+C_(44))/3 in the temperature range around T_(s) to which an elastic softening was observed in(C_(11)-C_(12))/2 for PrRu_(2)Zn_(20).The disappearance of the softening indicates that the structural transition in PrRu_(2)Zn_(20) is suppressed by the substitution of Zn ions by In ones with a larger ionic ***,the C_(T) of PrRu_(2)In_(2)Zn_(18) exhibits a precursor Curie-type elastic softening toward low temperatures being responsible for the non-Kramers Γ_(3) ground *** discuss the ground state and the evolution of the elastic properties of the different single-crystal samples of PrRu_(2)In_(2)Zn_(18) grown under different conditions.

关键词： ultrasonic measurements non-Kramers doublet structural phase transition crystalline electric field effect

Mission of the National Cancer Center Hospital in Japan to promote clinical trials for precision medicine

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Cancer Biology & Medicine 2024年第1期21卷 1-3页

作者： Kazuaki shimada Kenichi nakamura Noboru Yamamoto Department of Hepatobiliary and Pancreatic surgery National Cancer Center HospitalTokyo 104-0045Japan Clinical Research support Offce National Cancer Center HospitalTokyo 104-0045Japan Department of Experimental Therapeutics National Cancer Center HospitalTokyo 104-0045Japan

Precision medicine is a growing field *** its potential benefit to many patients,several major obstacles must be overcome before precision medicine can be more widely used in clinical *** main obstacles are associated... 详细信息

关键词： clinical Cancer overcome