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| 1 | Pre-Failure Behavior of Deep-Situated Osaka Clay显示文摘Great interest has been aroused on deeply-situated Osaka clay since Kobe Earthquake in1994.In this paper is presented the analysis on the results of a series of lab tests on Osaka clay situatedfrom 100m to 1500m under the ground.The wave velocity method,bender element method,LDT and theformula derived by the authors are used,focus is put on the pre-failure mechanical behavior of the clay.The analysis shows that,(i)pore-pressure coefficient B is less than 1.0,(ii)the relationship between shearmodulus and Poisson's ratio is not in agreement with that reported before,(iii)the modulus measured withLDT is still less than that measured with bender element method,and(iv)there are two threshold strains,within which the clay can be considered as elastic,and both of them are larger than that reported before. | T.HONGO M.FUKUDA T.ADACHI F.OKA | 1998 | China Ocean Engineering1998,13,4: | 5 |
| 2 | Abnormal muscle response monitoring during during microvascular decompression for hemifacial spasm显示文摘 | S.Yamashita T.Kawaguchi M.Fukuda | | 0,,: | 1 |
| 3 | β-NMR和β-NQR谱仪的建立显示文摘介绍了在中国原子能科学研究院建成的我国第一台 β NMR及 β NQR谱仪 .进行了12 B的寿命、磁矩和极化度的测量 。 | 周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 袁大庆 骆海龙 容超凡 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 | 2004 | 高能物理与核物理2004,28,3: | 1 |
| 4 | 全球变化和北方森林:阈值,移动态或逐渐变化?显示文摘21世纪所表现出来的北方气候变化的巨大性总是引起植被的变化,其变化之大足以引起重要的社会影响。但植被变化的速度和格局却难以预测。我们评述了一些能够表明在北方森林限界上或那些种子散播限制了物种分布的地区,植被是逐渐变化的证据。但是,在一个物种分布区的中心,森林组成对气候变化是相当有弹性的,除非超过了某些阈值。在阈值点上,变化是迅速且预想不到的,常常转换至截然不同的生态系统类型。很多这类变化的诱因易受管理的影响,这说明我们在今后几十年的政策抉择将对目前气候变化的生态社会后果产生重大影响。 | F.StuartChapinⅢ TerryV.Callaghan YvesBergeron M.Fukuda J.F.Johnstone G.Juday S.A.Zimov 王胜 徐化成 | 2004 | AMBIO-人类环境杂志2004,33,6: | 1 |
| 5 | Void Evolution inα-Al_(2)O_(3)Irradiated by En≥1 MeV Neutrons of 3×10^(20)cm^(-2)显示文摘The void evolution inα-Al2O3 irradiated by En≥1 MeV neutrons of 3×10^(20)cm^(-2) and post-annealed from 100°C to 1050°C has been studied by a positron annihilation lifetime technique.The void nucleation starts at 500°C.In the annealing temperature region from 550℃ to 750℃,the radius of created voids keeps constant at a value of about 0.29 nm and the number of voids increases with increasing temperature.Afterwards,the radius of voids increases rapidly with the increasing annealing temperature and reaches 1.21nm at 1050℃. | 徐勇军 范志国 罗起 王荣 朱佳政 T.Iwata T.Minamisono K.Matsuta M.Fukuda M.Mihara 朱升云 | 2001 | Chinese Physics Letters2001,18,6: | 0 |
| 6 | Big deformation in ^(17)C显示文摘Reaction and interaction cross sections of^(17)C on a carbon target have been re-analyzed using the modified Glauber model.The analysis with a deformed Woods-Saxon density/potential suggests a big deformation structure for^(17)C.The existence of a tail in the density distribution supports the possibility of it being a one-neutron halo structure.Under a deformed core plus a single-particle assumption,analysis shows a dominant d-wave of the valence neutron in^(17)C. | 樊广伟 蔡晓鹭 M.Fukuda 韩体飞 李学超 任中洲 徐望 | 2014 | Chinese Physics C2014,38,1: | 0 |
| 7 | 85 MeV ^(19)F离子辐照α-Al_2O_3热退火产生的空洞研究显示文摘:采用正电子湮没寿命技术研究了注量为 5 2 8× 10 16 cm- 2 的 85MeV 19F离子辐照后α Al2 O3热退火产生的空洞。实验结果表明 :辐照后的α Al2 O3经 4 50℃退火开始出现空洞 ;550~ 750℃时 ,空洞半径达到 0 37nm ,且其大小不变而浓度则随温度迅速增加 ;高于 80 0℃ ,退火温度升高 ,空洞增大 ;10 50℃退火 ,形成了半径为 1 0 | 王荣 徐勇军 朱佳政 朱升云 T.Iwata K.Matsuta M.Fukuda M.Mihara T.Minamisono | 2001 | 原子能科学技术2001,35,4: | 0 |
| 8 | ^(84,86)Zr高自旋转动态g-因子测量显示文摘A~80区中重核核结构复杂,且随质子数、中子数和角动量变化,该区核的核结构研究是当前原子核高自旋态谱学研究领域的中心课题之一。核微观组态、单粒子和集体运动等核结构可以通过能级和寿命测量来研究,但要作出肯定的结论和深入的了解需要测量原子核的g-因子。A~80区核结构的一个重要特征是g9/2质子与(或)中子折对顺排。g-因子对质子与(或)中子折对顺排特别灵敏,由g-因子测量可对粒子折对顺排作出肯定的判断。本工作通过A~80区Z=40的Zr同位素的高自旋态g-因子测量研究核结构随中子数和角动量变化。 采用瞬态场离子注入扰动角分布方法测量了84Zr和86Zr的高自旋转动的态g-因子。高自旋态由85Ni(28Si,2p)84Zr和58Ni(32S,4p)86Zr反应产生和布居。 | K.Mastuta M.Fukuda M.Mihara T.Minamisono 罗起 王勇刚 高早春 范志国 徐勇军 王荣 朱佳政 李广生 吴晓光 温书贤 许国基 张锡珍 陈永寿 朱升云 | 2001 | 中国原子能科学研究院年报2001,,1: | 0 |
| 9 | 重离子辐照模拟的实验验证及α-Al_2O_3空洞产生研究显示文摘理论上由于重离子和中子都通过碰撞产生缺陷,在相同等效剂量条件下它们产生的缺陷相同。重离子的损伤率较中子高105~107,可用重离子辐照模拟高剂量中子辐照。现在,实验上采用重离子辐照模拟来研究现有中子源难以产生的高剂量中于辐照引起的辐照效应,但是还没有实验依据证明相同剂量条件下重离子和中子产生的缺陷相同。此外,理论预言在金属和绝缘材料中高于一定剂量的粒子辐照后,经过一定温度退火。 | T.Iwata T.Minamisono K.Matsuta M.Fukuda M.Mihara 王荣 徐勇军 朱佳政 郑永男 周冬梅 朱升云 | 2001 | 中国原子能科学研究院年报2001,,1: | 0 |
| 10 | Magnetic moment measurement of β-emitter ^(12)N显示文摘The magnetic moment of ^12N(I^π= +, T /2=11 ms) has been measured by the β-NMR method. The experiment was performed with the β-NMR and β-NQR facilities at the 5 MV Van de Graaff accelerator at Osaka University, Japan. | ZHENGYong-nan ZHOUDong-mei DUEn-peng YUANDa-qing ZUOYi WANGZhi-qiang LUOHai-long M.Mihara M.Fukuda K.Matsuta T.Minamisono ZHUSheng-yun | 2003 | Annual Report of China Institute of Atomic Energy2003,,1: | 0 |
| 11 | 85MeV^(19)F重离子辐照α-Al_2 O_3的空洞研究(英文)显示文摘5 .2 8× 10 16cm-2 85MeV19F辐照的α Al2 O3 中 ,在其热退火过程中采用正电子湮没方法首次观察到了空洞 .4 5 0℃退火开始产生空洞 ,5 5 0℃到 75 0℃空洞半径约为 0 2 9nm不随温度变化 ,但浓度随温度增加而增加 ;高于 75 0℃ ,空洞半径随温度升高迅速增大 ,10 5 0℃时空洞的半径达 1.10nm . | 王荣 徐勇军 朱佳政 T.Iwata 郑永男 周冬梅 K.Matsuta M.Fukuda M.Mihara T.Minamisono 朱升云 | 2003 | 高能物理与核物理2003,27,7: | 0 |
| 12 | Development of β-NMR and β-NQR显示文摘The β-NMR (nuclear magnetic resonance) and β-NQR (nuclear quadrupole resonance) technique and its ex-perimental set-up have been developed for the first time in China. The lifetime, magnetic moment and spin polarization of ^12B were determ/ned. The experimental results show the reliability of this newly developed β-NMR and β-NQR set-up. | 周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 | 2003 | Chinese Physics Letters2003,20,10: | 0 |
| 13 | β核磁共振和β核四极共振谱仪显示文摘为了开展核物理、粒子物理和凝聚态物理方面的研究 ,在中国原子能科学研究院建成了 1台 β核磁共振及 β核四极共振谱仪。利用该谱仪精确测量了12 B的极化度和12 B基态磁矩 ,所测量的12 B在Cu中的极化度为 1 1 4%± 0 6% ,12 B磁矩 μ =1 0 0 0 2± 0 0 0 2 8nm。实验应用证实该谱仪性能可靠。 | 周冬梅 郑永男 朱佳政 徐勇军 杜恩鹏 王志强 骆海龙 袁大庆 容超凡 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 | 2004 | 原子能科学技术2004,38,2: | 0 |
| 14 | g-factor Measurements of Rotational States in ^(84,86)Zr显示文摘1 IntroductionShape co-existence, softness, and dependence of spin and particle numbers characterize the nuclear structure of transitional nuclei in the mass 80-90 region. The nuclear structure has been understood far from satisfaction in this region. Interest stems from the alignments of the protons and neutrons in the same high-j g9/2 orbit that play an important role in the nuclear structure of transitional nuclei. g-factors are the crucial data to examine the alignment. A variety of spin dependence of g-factors has been proposed from the alignment response of the quasi-protons and neutrons to the collective rotation of | K.Matsuta M.Fukuda M.Mihara T.Minamisono | 2001 | Annual Report of China Institute of Atomic Energy2001,,0: | 0 |
| 15 | On-line Time Differential Perturbed Angular Correlation With Light Probe Nucleus ^(19)F显示文摘1 IntroductionThe time differential perturbed angular correlation(TDPAC) has been known for about 50 years. So far, no on-line TDPAC(TDPACOL) has been performed because of mother nuclei all having a rather long lifetime. In addition, almost all TDPAC experiments have been conducted using probe nuclei with a mass heavier than 40.The present work is motivated to develop a TDPACOL technique with light probe nuclei. The key point for it is to have short-lived mother nuclei with a lifetime of, say, several ten seconds. We have found a suitable mother nucleus 19O having a half-life of 26.9 s and decaying to the daughter | T.Minamisono K.Matsuta M.Fukuda M.Mihara WANGZhi-qiang K.Sato H.Akai | 2001 | Annual Report of China Institute of Atomic Energy2001,,0: | 0 |
| 16 | Effect of nuclear deformation on direct capture reactions显示文摘Direct radiative capture processes are well described by a spherical potential model. Since most nuclei are not spherical, and in order for the model to explain direct radiative captures more accurately, the effect of nuclear deformation has been analyzed with q-deformed Woods-Saxon potential in this work. The results imply that nuclear deformation largely affects the direct radiative capture, and it should be taken into account when discussing direct capture reactions. | 樊广伟 蔡晓鹭 M.Fukuda 韩体飞 李学超 任中洲 徐望 | 2014 | Chinese Physics C2014,38,4: | 0 |
| 17 | 短寿命β-放射性核^(12)B磁矩精确测量显示文摘通过对核反应11B(d,p)12B的入射束流能量和12B反冲核的反冲角度的选择产生极化的β放射性核12B(Iπ=1+,T1/2=20.18ms).在中国第一台β-NMR和β-NQR谱议上,我们利用β-NMR技术测量了短寿命核12B的磁矩,通过精确的奈特位移修正后,得到12B的核磁矩μ=(0.99993±0.00048)nm,g因子g=(0.99993±0.00048). | 周冬梅 郑永男 杜恩鹏 徐勇军 朱佳政 袁大庆 王志强 骆海龙 左翼 马瑞刚 段晓 M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 | 2004 | 中国科学(G辑)2004,34,4: | 0 |
| 18 | Magnetic Moment of β-emitter ^(12)B显示文摘The magnetic moment of 12B(Iπ=1+, T1/2=20.2 ms) has been measured by the β-NMR method. Theexperiment was performed with our newly built β-NMR and β-NQR facilities. The nuclei 12B (Iπ=1+, T1/2=20.2 ms) were produced through the 11B(d, p) 12B reaction with adeuteron beam from the 2×1.7 MV tandem accelerator.The target was the natural B target | M.Mihara M.Fukuda K.Matsuta T. Minamisono | 2002 | Annual Report of China Institute of Atomic Energy2002,,0: | 0 |
| 19 | The ab initio Calculation of Electric Field Gradient at the Site of P Impurity in α-Al_(3)O_(2)显示文摘An ab initio calculation of the electric-field gradient(EFG)at the site of a phosphorous impurity substituting an Al atom in α-Al_(3)O_(2) is carried out using the WIEN2k code with the full-potential linearized augmented plane wave plus local orbital method(LAPW+lo)in the frame of density functional theory.The atomic lattice relaxations caused by the implanted impurities were calculated for two different charged states to well describe the electronic structure of the doped system.The EFG at the site of the phosphorous impurity in the charged supercell calculated with the exchange-correlation potential of the Wu-Cohen generalized gradient approximation(WC-GGA)is 0.573×10^(21) V/m^(2).Then,the nuclear quadrupole moment of the I=3 state in ^(28)P is deduced to be 137 mb from the quadrupole interaction frequency of 190 kHz measured recently by theβ-NQR method. | 张乔丽 袁大庆 张焕乔 范平 左翼 郑永男 K.Masuta M.Fukuda M.Mihara T.Minamisono A.Kitagawa 朱升云 | 2012 | Chinese Physics Letters2012,29,9: | 0 |
| 20 | Polarization of ^(12)B in Cu显示文摘The polarization of β-emitting nuclei and its preservation are very important in the β-NMR 和β-NQR experiments. The present work was motivated to measure the polarization of 12B by β-NMR. Theexperiment was carried out by using our newly built β-NMR and β -NQR facilities. The nuclei 12B (Iπ=1+, T1/2=20.2 ms) were produced through the 11B(d, p) 12B reaction with adeuteron beam from the 2×1.7 MV tandem accelerator. The target was the natural B target | M.Mihara M.Fukuda K.Matsuta T.Minamisono | 2002 | Annual Report of China Institute of Atomic Energy2002,,0: | 0 |