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Acta Oceanologica Sinica 1999年第2期18卷 237-246页

作者： Hu Jianyu Liang Hongxing and Zhang xuebin 1. institute of Subtropical Oceanography, Xiamen University, Xiamen 361005, china 2. Fujian institute of Oceanology, Xiamen 361012, china (Received June 3, 1998 accepted August 9, 1998) Inst. of Subtropical Oceanography Xiamen University Xiamen 361005 China Fujian institute of Oceanology Xiamen 361012 China

Based on the CTD data obtained in the southern Taiwan Strait and its adjacent areas in August and September of 1994, the distributional features of the temperature and salinity in the studied area have been analyzed in detail. The results are as follows: (1) There are two low temperature and high salinity regions in the nearshore area between Dongshan and Shantou and in the southeastern Taiwan Shoal, respectively, which may be caused by upwellings. (2) There exists a cold eddy in the northwestern sea area and a warm eddy with two high temperature cores in the eastern sea area of the Dongsha Islands, which are related to the anti-cyclonic turning of the seawater near the Dongsha Islands. (3) A westward high temperature and high salinity water tongue extends through the northern Luzon Strait and reaches the sea areas near the Dengsha Islands and southern Taiwan Strait.

关键词： Temperature salinity distributional feature late summer southern Taiwan Strait and its adjacent areas

Sectional distribution of salinity and its indication of Kuroshio'sintrusion in the southern Taiwan Strait and northeastern South china Sea late summer, 1994

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Acta Oceanologica Sinica 1999年第2期18卷 225-236页

作者： Hu Jianyu Liang Hongxing and Zhang xuebin 1. institute of Subtropical Oceanography, Xiamen University, Xiamen 361005, china 2. Fujian institute of Oceanology, Xiamen 361012, china (Received June 3, 1998 accepted August 8, 1998) Inst. of Subtropical Oceanography Xiamen University Xiamen 361005 China Fujian institute of Oceanology Xiamen 361012 China

Using the CTD data investigated at about 330 stations in the southern Taiwan Strait, the northeastern South china Sea and their adjacent seas in August and September of 1994, this paper anayses the sectional distributions of salinity in 10 selected sections and discusses the possibility of the Kuroshio's intrusion into the northeastern South china Sea and the southern Taiwan Strait. The results show that: as the main stream of Kuroshio passes by the northern Luzon Strait during the survey period, the 'Kuroshio-influenced water' with some hydrological features of the Kuroshio may extend through the Luzon Strait to the sea areas near both the Dongsha Islands and the Taiwan Shoal of the southern Taiwan Strait.

关键词： Sectional distribution of salinity Kuroshio's intrusion late summer southern Taiwan Strait northeastern South china Sea

Anomalous Hall effect and electronic correlation in a spin-reoriented kagome antiferromagnet LuFe_(6)Sn_(6)

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Chinese Physics B 2024年第10期33卷 46-51页

作者： Meng Lyu Yang Liu Shen Zhang Junyan Liu Jinying Yang Yibo Wang Yiting Feng xuebin Dong Binbin Wang Hongxiang Wei Enke Liu Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Ningbo institute of Materials Technology&Engineering Chinese Academy of SciencesNingbo 315201China

The kagome lattice system has been identified as a fertile ground for the emergence of a number of new quantumstates,including superconductivity,quantum spin liquids,and topological electronic *** has attracted significantinterest within the field of condensed matter ***,we present the observation of an anomalous Hall effect in aniron-based kagome antiferromagnet LuFe_(6)Sn_(6),which implies a non-zero Berry curvature in this *** means ofextensive magnetic measurements,a high Neel temperature,T_(N)=552 K,and a spin reorientation behavior were identifiedand a simple temperature-field phase diagram was ***,this compound was found to exhibit a largeSommerfeld coefficient ofγ=87 mJ·mol^(-1)·K^(-2),suggesting the presence of a strong electronic correlation *** indicates that LuFe_(6)Sn_(6)is an intriguing compound that may exhibit magnetism,strong correlation,and topologicalstates.

关键词： kagome lattice anomalous Hall effect magnetism electronic correlation

基于势接触连续-非连续方法的双层叠梁开裂过程模拟

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防灾减灾工程学报 2024年第5期44卷 1011-1019页

作者：王学滨李继翔杜轩郑一方辽宁工程技术大学计算力学研究所辽宁阜新123000 辽宁工程技术大学力学与工程学院辽宁阜新123000

弱黏结岩层容易发生滑动和离层,进而引发灾害。为了检验自主开发的势接触连续-非连续方法中的无黏结叠梁模型并深入了解其破坏后的力学行为,针对三点弯双层叠梁开展研究,并考察了势接触力求解中法向刚度系数的影响。通过将两个岩层叠合... 详细信息

弱黏结岩层容易发生滑动和离层,进而引发灾害。为了检验自主开发的势接触连续-非连续方法中的无黏结叠梁模型并深入了解其破坏后的力学行为,针对三点弯双层叠梁开展研究,并考察了势接触力求解中法向刚度系数的影响。通过将两个岩层叠合在一起建立叠梁模型,二者发生嵌入,因而存在相互作用的势接触力。通过改变单梁叠放顺序,分别形成了上砂岩下泥岩叠梁和上泥岩下砂岩叠梁。除了考察了载荷-位移曲线、最大主应力云图,还考察了裂纹区段数目的演化规律,以深化对叠梁复杂力学行为的理解。研究结果表明:(1)双层叠梁的载荷-位移曲线能与有关的实验结果吻合。(2)上泥岩下砂岩叠梁的各单梁裂缝出现时刻晚于上砂岩下泥岩叠梁的;前者的第1次硬化和第1次软化阶段比后者的长;前者的第2次硬化阶段不如后者的明显;前者的第2次软化阶段不如后者的明显,呈明显脆性。(3)对于上硬下软叠梁,随着法向刚度系数的减小,第1和第2峰值载荷对应的位移均增大。(4)对于上软下硬叠梁,随着法向刚度系数的减小,载荷-位移曲线由双峰或多峰向单峰转变。

关键词：弱黏结三点弯叠梁开裂过程势接触连续非连续方法

Improvements in Iodine Stabilized He-Ne Easers at 474 THz (633 nm) with Compatible System of Third and Fifth Harmonic Locking

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计量学报 1991年第S1期12卷 1-5页

作者： Shen Naicheng,Wang Chu,Wang Zhongwu,Zhang xuebin and Sun Yimin(National institute of Metrology,Beijing,china) (Peking University,Beijing,china)

We have developed two 474 THz(633 nm)new iodine stabilized He-Ne lasers with compatible system of third and fifth harmonic *** frequency stability is 1.0×10-11/ 1s and 3.5×10-12 / 10s with third harmonic locking,and corresponding values are 1.3×10-11/1s and 4.0×10-12/ 10s with fifth harmonic *** found that the frequency difference between the same component with third and fifth harmonic locking are from 5 kHz to SO *** experiment and analysis indicate that the center of fifth harmonic signals is closer to the Lorentzian center in iodine absorption component than one of the third harmonic signals,and the reproducibility with fifth harmonic locking is also better than one with third harmonic locking.

关键词： locking nm harmonic Iodine fifth iodine compatible closer stabilized insensitive

Effect of VFe addition on hydrogen storage behavior of TiMn_(1.5)-based alloys

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Journal of University of Science and Technology Beijing 2004年第3期11卷 263-267页

作者： xuebin Yu Zhu Wu Baojia Xia Taizhong Huang Jinzhou Chen Naixin Xu Lab of Energy Science and Technology, Shanghai institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, china Lab. of Energy Sci. and Technol. Shanghai Inst. of Microsystem Chinese Acad. of Sci. Shanghai 200050 China

The hydrogen absorption and desorption behavior of TiMn_(1.25)Cr_(0.25)alloys with VFe substitution for partial Mn was investigated at 273, 293 and 313 K. It is found thatVFe substitution increases their hydrogen storage capacity, decreases the plateau pressure and thehysteresis factor of their pressure-composition-temperature (PCT) curves. After annealing treatmentat 1223 K for 6 h, TiMn_(0.95)Cr_(0.25)(VFe)_(0.3) alloy exhibits a lower hydrogen desorptionplateau pressure (0.27 MPa at 313 K) and a smaller hysteresis factor (0.13 at 313 K); the maximumand effective hydrogen storage capacities (mass fraction) are 2.03% and 1.12% respectively, whichcan satisfy the demand of hydrogen storage tanks for proton exchange membrane fuel cells (PEMFC).

关键词： TiMn-based alloy hydrogen storage capacity hysteresis sloping factor PEMFC

1959—2022年青海省食源性肉毒中毒事件流行病学分析

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中国食品卫生杂志 2024年第2期36卷 207-211页

作者：王云丽郭学斌青海大学医学部公共卫生系青海省疾病预防控制中心青海西宁810000

目的分析青海省食源性肉毒中毒事件流行特征及影响因素,为防控提供科学依据。方法收集1959—2022年青海省肉毒中毒数据,应用Excel 2021进行流行病学特征分析,利用R 4.2.3对事件数和病死率进行Mann-Kendall趋势检验,运用ArcGis 10.2软件... 详细信息

目的分析青海省食源性肉毒中毒事件流行特征及影响因素,为防控提供科学依据。方法收集1959—2022年青海省肉毒中毒数据,应用Excel 2021进行流行病学特征分析,利用R 4.2.3对事件数和病死率进行Mann-Kendall趋势检验,运用ArcGis 10.2软件制作空间分布图。结果1959—2022年发生食源性肉毒中毒事件86起,发病348人,死亡195人,病死率为56.03%。中毒主要发生在第二、三季度,牧民为主要的发病人群,肉毒毒素型别主要为E型,“风干肉”为主要的中毒食品,生食和开锅即食为主要的食用方式。结论青海省食源性肉毒中毒病死率整体呈下降趋势,发病地区也逐渐缩小,但作为我国高发地区之一,病死率仍处于较高水平,应进一步加强对高危人群食品安全教育,提高基层医疗机构对肉毒中毒的救治能力,减少中毒事件的发生和死亡。

关键词：肉毒杆菌肉毒毒素食源性致病菌青海

基于数字图像相关方法的单轴压缩黏土试样剪切带法向应变场观测

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应用基础与工程科学学报 2018年第1期26卷 177-189页

作者：王学滨张楠董伟潘一山杜亚志辽宁工程技术大学计算力学研究所辽宁阜新123000 辽宁工程技术大学力学与工程学院辽宁阜新123000

剪切带内部变形观测对于正确认识材料的破坏机理具有重要意义.为了研究单轴压缩黏土试样剪切带法向各种应变场的分布及演变规律,在土样微裂纹刚出现时剪切带法向布置测线,对数字图像相关方法获得的结果进行双三次样条插值,获得光滑性较... 详细信息

剪切带内部变形观测对于正确认识材料的破坏机理具有重要意义.为了研究单轴压缩黏土试样剪切带法向各种应变场的分布及演变规律,在土样微裂纹刚出现时剪切带法向布置测线,对数字图像相关方法获得的结果进行双三次样条插值,获得光滑性较好的各种应变场.通过统计,获得剪切带法向最大剪切应变的均值和标准差的演变规律,以标准差开始快速增加的时刻作为剪切带萌生的条件.研究发现,（1）随着纵向应变的增加,剪切带中部的最大剪切应变快速、单调增加,而剪切带外部的最大剪切应变增速较慢,有时甚至会下降;（2）剪切带萌生对应于应力-纵向应变曲线的硬化阶段的初始阶段;（3）在剪切带出现不久,剪切带中部的水平和垂直方向线应变的值相差不大,随着剪切带的变形,水平线应变的增长速度高于垂直线应变的,水平线应变对最大剪切应变的贡献率逐渐大于垂直线应变的,而剪切应变对最大剪应变的影响不大.

关键词：黏土试样剪切带硬化阶段线应变剪切应变

三维连续-非连续并行计算方法及其在岩爆过程模拟中的应用

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水资源与水工程学报 2024年第1期35卷 177-185页

作者：王学滨杜轩薛承宇陈双印廖裴彬余保健辽宁工程技术大学计算力学研究所辽宁阜新123000 辽宁工程技术大学力学与工程学院辽宁阜新123000

随着深部岩石工程的发展,岩爆变得越发严重。在岩爆的数值模拟方面,连续方法和非连续方法均具有一定的局限性。兼具二者优势的连续-非连续方法更具优势,且正在快速发展。基于CUDA对自主开发的三维拉格朗日元与离散元耦合连续-非连续方... 详细信息

随着深部岩石工程的发展,岩爆变得越发严重。在岩爆的数值模拟方面,连续方法和非连续方法均具有一定的局限性。兼具二者优势的连续-非连续方法更具优势,且正在快速发展。基于CUDA对自主开发的三维拉格朗日元与离散元耦合连续-非连续方法进行了GPU并行加速。为了探索岩爆的机理和过程,模拟了不同静水压力、侧压系数和单元数目(最多达100×10^(4))条件下圆形洞室围岩V形坑的演化规律和单元弹射现象。考察了洞室围岩中裂纹的定量演化规律。研究表明:当静水压力较大时,基于芬纳公式的支护设计偏于不安全。由于V形坑的位置发生改变,V形坑的平均最大深度随着静水压力的增加先缓慢增加后快速增加。关于洞室围岩V形坑的模拟结果能与有关的实验结果、数值结果和现场观测结果吻合。上述研究很好地体现了岩爆并行计算较串行计算和商业软件计算的优势。

关键词：岩爆 GPU并行计算三维连续-非连续方法 V形坑静水压力侧压系数洞室

基于OrcaFlex的钢悬链立管疲劳损伤预报

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海洋工程 2024年第3期42卷 1-10页

作者：侯静康庄井学斌中海油研究总院有限责任公司北京100028 哈尔滨工程大学船舶工程学院黑龙江哈尔滨150001 海洋石油工程股份有限公司天津300461

涡激振动是钢悬链立管疲劳损伤的重要诱导因素之一,因此涡激振动分析在钢悬链立管设计中占据重要地位。OrcaFlex在海洋工程领域功能强大、应用广泛,能够提供两种涡激振动疲劳损伤预报方法,分别是基于模态叠加法的频域预报方法和基于Iwan... 详细信息

涡激振动是钢悬链立管疲劳损伤的重要诱导因素之一,因此涡激振动分析在钢悬链立管设计中占据重要地位。OrcaFlex在海洋工程领域功能强大、应用广泛,能够提供两种涡激振动疲劳损伤预报方法,分别是基于模态叠加法的频域预报方法和基于Iwan-Blevins尾流振子模型的时域预报方法。OrcaFlex的涡激振动时域预报模型只考虑了横流向涡激振动造成的疲劳损伤,基于OrcaFlex的时域预报方法开发了双自由度涡激振动尾流振子模型的接口,考虑了浮式平台运动对钢悬链立管的涡激振动激励作用,实现了钢悬链立管双自由度涡激振动疲劳损伤预报。

关键词：钢悬链立管疲劳损伤时域预报涡激振动 OrcaFlex 尾流振子模型