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Chinese Science Bulletin 2005年第18期50卷 2063-2068页

作者： CHANG Hong zhang peizhen AN Zhishen WANG Xulong QIANG Xiaoke FU Chaofeng State Key Laboratory of Loess and Quaternary Geology. Institute of Earth Environment Chinese Academy of Sciences. Xi'an 710075. China Graduate School of Chinese Academy of Sciences. Beijing 100039.China State Key Laboratory of Seismic Dynamics. China Earthquake Administration. Beijing 100029 China

The sequences of fluvial terraces in the Yazi Spring Stream are signs of the stepwise uplift of the Kunlun Mountains in the northern part of the Tibetan Plateau since the Late Pleistocene. Geomorphic and sedimentary features of the terraces reveal that they have resulted from the phased tectonic uplift and the consequent river incision in the northern plateau. Using the method of Single-aliquot Regenerative-dose (SAR) Protocol and Radiocarbon 14C dating, the deposit ages of three-grade terraces were ob- tained, which are 57.5, 12.8 and 5.7 kaBP, respectively. The features and ages of terraces reveal that the incision rate of the stream accelerated at the beginning of the Holocene. The incision rate changed suddenly at 12.8 KaBP, from 0.43±0.07 mm/a to 1.59±0.55 mm/a. This implicates that uplift of the Kunlun Mountains is intensive at the first onset of the Holo- cene, corresponding to the obvious change of slip-rate on the Altyn Tagh Fault. But its uplift rate is much lower than that of the latter, which suggests that growth of the northern mar- gin of the Tibetan Plateau is stronger than its interior.

关键词：青藏高原昆仑山脉激励发光沉淀特征地球科学

高校毕业生创业意向影响因素研究——基于广东省6所高校的实证分析

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创新与创业教育 2024年第3期15卷 73-80页

作者：王春雯肖伟宏张培珍郝斌飞广东海洋大学电子与信息工程学院广东湛江524008

基于广东省6所高校应届毕业生的抽样调查数据,运用二元Logistic回归模型实证分析个体特征、创业教育、创业环境、创业素质对高校毕业生创业意向的影响。结果表明,个人创业经历显著正向影响高校毕业生的创业意向,而家庭所在地和亲友创业... 详细信息

基于广东省6所高校应届毕业生的抽样调查数据,运用二元Logistic回归模型实证分析个体特征、创业教育、创业环境、创业素质对高校毕业生创业意向的影响。结果表明,个人创业经历显著正向影响高校毕业生的创业意向,而家庭所在地和亲友创业经历的影响不显著;创业教育、创业环境和创业素质均显著正向影响高校毕业生的创业意向;性别、学历、专业和学业成绩四个控制变量也影响高校毕业生的创业意向,男生创业意向高于女生,专科学历学生的创业意向最高,人文社科类学生的创业意向最低,学生的学业成绩越好其创业意向越低。在此基础上,提出如下建议以促进高校毕业生创业:营造良好的创业环境,加强创业扶持政策的宣传力度;完善高校创业教育体系,打造多元化创业教育主体;提升高校毕业生的创业素质,激发其创业内生动力等。

关键词：高校毕业生创业意向影响因素 Logistic模型

Late Quaternary Slip Behavior of the Jinqianghe Fault in the Middle Qilian-Haiyuan Fault Zone,Northeastern Tibetan Plateau

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Acta Geologica Sinica(English Edition) 2022年第3期96卷 825-843页

作者： LIANG Shumin ZHENG Wenjun CHEN Gan zhang peizhen zhang Dongli BI Haiyun YANG Xue zhang Yipeng DUAN Lei LU Bentian Guangdong Provincial Key Laboratory of Geodynamics and Geohazards School of Earth Sciences and EngineeringSun Yat–sen UniversityGuangzhou 510275China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiGuangdong 519082China State Key Laboratory for Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China

The Qilian-Haiyuan fault zone in the northeastern Tibetan Plateau has been the source of strong earthquakes in the *** its middle segment,the Jinqianghe fault is an important active fault within the Tianzhu seismic gap;however,little is known about its slip *** present a new horizontal displacement distribution along this fault,we used WorldView-2 stereo pairs and unmanned aerial vehicle-based photogrammetry to construct digital elevation models to obtain a detailed tectono-geomorphic interpretation and geomorphic *** offset marker measurements yielded 135 geomorphic displacements and 8 offset *** dating was used to establish the regional age sequence of the geomorphic units in offset fluvial terraces at four study *** displacements and ages linked the offset clusters with the geomorphic unit sequence;the Holocene strike-slip rate of the Jinqianghe fault was estimated to 4.8-5.6 mm/a at~4-12 ka and 2.9-4.7 mm/a from~4 *** recent earthquakes(with a recurrence interval of~1000 years)represent an active seismic period,revealing the potential seismic hazard along this fault because it has not ruptured in the last 1500 years.

关键词： remote sensing offset geomorphology cumulative offset distribution Qilian-Haiyuan fault zone

Pattern and timing of late Cenozoic rapid exhumation and uplift of the Helan Mountain,China

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Science China Earth Sciences 2010年第3期53卷 345-355页

作者： LIU JianHui zhang peizhen ZHENG DeWen WAN JinLin WANG WeiTao DU Peng LEI QiYun State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China Seismological Bureau of Ningxia Hui Autonomous Region Yinchuan 750001China

The Helan Mountain, an intraplate deformation belt in the North China Craton, is located in the northern portion of the China North-South seismic belt, and at the northwestern margin of the Ordos Block. The Cenozoic deformation history of the Helan Mountain is characterized by extension along the eastern Helan Mountain fault (EHSF), resulting in the exhumation and uplift of the Helan Mountain, relative to the rifting of the adjacent Yinchuan Basin. Here we present new apatite fission track (AFT) data from several transects adjacent to the EHSF in the central and northern Helan Mountain. AFT ages from the northern Helan Mountain (Dawukou and Zhengyiguan transects) range from 10 Ma to 89 Ma, whereas AFT ages from the southern Helan Mountain (Suyukou transect) are greater than 71 Ma. The AFT data analysis reveals initiation of rapid uplift and exhumation of the Helan Mountain at 10–12 Ma. Additionally, a plot of the AFT ages versus their mean track length shows a distinctive "boomerang" pattern indicating that the Helan Mountain experienced a discrete phase of accelerated exhumation beginning at 10-12 Ma. Spatially, AFT samples systematically increase in age away from the EHSF and are consistent with late Cenozoic exhumation that was slow in the southwestern Helan Mountain and rapid in the northeastern Helan Mountain, as well more rapid adjacent to the EHSF and slower away from the EHSF. Obviously, the spatial distribution of late Cenozoic exhumation indicates that normal faulting of the EHSF is related to southwestward tilting and rapid exhumation of the Helan Mountain beginning at 10–12 Ma. The uplift and exhumation of the Helan Mountain was a response to the intensive extension of the northwestern margin of the Ordos Block in the late Cenozoic; this occurred under a regional extensional stress field oriented NW-SE along the Yinchuan-Jilantai-Hetao and the Weihe-Shanxi graben systems adjacent to the Ordos Block.

关键词： Helan Mountain apatite fission track cooling history exhumation characteristic

脾肾阳虚型慢性疲劳综合征的中医治疗研究进展

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长春中医药大学学报 2024年第10期40卷 1156-1161页

作者：张渝婧仉培臻奉飘赵瑶琴李畅马源刘京丽长春中医药大学长春130117

慢性疲劳综合征(CFS)是一种慢性衰弱性疾病,常伴有反复疲劳、疼痛、记忆力下降等症状,临床治疗手段有限,中医疗法在防治慢性虚弱性疾病中疗效确切。通过整理、分析中医治疗脾肾阳虚型CFS的文献,系统总结了中医治疗脾肾阳虚型CFS的各种方... 详细信息

慢性疲劳综合征(CFS)是一种慢性衰弱性疾病,常伴有反复疲劳、疼痛、记忆力下降等症状,临床治疗手段有限,中医疗法在防治慢性虚弱性疾病中疗效确切。通过整理、分析中医治疗脾肾阳虚型CFS的文献,系统总结了中医治疗脾肾阳虚型CFS的各种方法,发现中医以温肾理脾、温脾益肾的原则进行中药内服治疗,以健脾益肾、益肾调督、进火补针等针法进行针刺,以长蛇灸、督灸、隔物灸等灸法进行施灸,以固本培元、背部推拿等手法进行推拿,还有学者将多种方法联合应用,或运用其他方法进行治疗,均取得了显著疗效。但中医治疗方法的具体过程和操作仍需进一步规范和完善。同时还需要深入开展中医治疗CFS的机制研究,以期为临床治疗提供理论依据。

关键词：慢性疲劳综合征脾肾阳虚中医药疗法

Far-field coseismic displacements associated with the 2011 Tohoku-oki earthquake in Japan observed by Global Positioning System

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Chinese Science Bulletin 2011年第23期56卷 2419-2424页

作者： WANG Min LI Qiang WANG Fan zhang Rui WANG YanZhao SHI HongBo zhang peizhen SHEN ZhengKang State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beijing 100029 China National Earthquake Infrastructure Service China Earthquake Administration Beijing 100036 China Department of Geophysics School of Earth and Space Science Peking University Beijing 100871 China

Analysis of GEONET observations covering the entire territory of Japan shows that the great Tohoku-oki earthquake that occurred on March 11, 2011 off the east coast of Honshu in Japan caused an eastward movement of the northern part of the island by as much as 5.3 m. The GPS data from TEONET in China were used to derive far-field coseismic displacements and to assess the impact of the Tohoku-oki earthquake on crustal deformation in eastern China. The results reveal that the coseismic horizontal displacements induced by the earthquake are the level of millimeters to centimeters in North and Northeast China, with a maximum of 35 mm. Strain analysis also indicates that the earthquake resulted in an increase in the tensile strain on the north-northeast trending faults in North and Northeast China. The tensile strain imposed on the Yilan-Yitong and Dunhua-Mishan faults is more significant than that imposed on the faults in North China; the maximum normal strain reaches about 40 nano-strain. Considering that the static Coulomb stress loaded on the faults is limited, its effect on the regional seismic activity may not be significant.

关键词：地震相东北部全球定位系统 OKI 位移观测日本远场北东向断裂

Effects of Aerobic Exercise on Atherosclerotic Risk in Postmenopausal Women

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Journal of Science in Sport and Exercise 2019年第2期1卷 132-141页

作者： Mengting Luo peizhen zhang Xinglong Zhou Xin zhang Wei Zhao Yuming Bai School of Sport Medicine and Rehabilitation Beijing Sport UniversityNo.48 Xinxi RoadHaidian districtBeijing 100084People’s Republic of China College of Exercise Medicine Chongqing Medical UniversityChongqingPeople’s Republic of China Sport Science College Beijing Sport UniversityBeijingPeople’s Republic of China

Introduction To study the effects of aerobic exercise on lipid metabolism,endothelial function,and oxidative stress reaction in postmenopausal women,in order to prevent and control *** Thirty-two women with natural menopause were randomly divided into an exercise group and a control *** in the exercise group(n=16)took part in a 3-month aerobic training program according to their exercise pre-scription,while participants in the control group(n=16)maintained their usual ***,endothelial function,and oxidative stress-related indicators were measured before and after the *** After 3 months of aerobic training at an intensity of 50-60%of cardiorespiratory fitness,serum total cholesterol and low-density lipoprotein cholesterol decreased significantly(P<0.05),and high-density lipoprotein cholesterol increased significantly(P<0.01).A significant reduction in endothelin(P<0.01)and a significant increase in nitric oxide(P<0.05)were also *** training intervention also delayed the increase in homocysteine and cysteine aspartate-specific protease-3 in postmenopausal *** Aerobic exercise had a positive effect on blood lipids,endothelial function,and oxidative stress of postmeno-pausal women,and these changes may mitigate the risk of atherosclerosis *** exercise programs could be used as a primary atherosclerosis prevention strategy for postmenopausal women.

关键词： Aerobic exercise Postmenopausal women Atherosclerosis Endothelial function Oxidative stress

Far-field coseismic displacements associated with the great Sumatra earthquakes of December 26,2004 and March 29,2005 constrained by Global Positioning System

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Chinese Science Bulletin 2006年第14期51卷 1771-1775页

作者： WANG Min zhang peizhen SHEN Zhengkang LIU Jie SUN Hanrong GAN Weijun LI Peng State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake Administration Beijing 100029 China Institute of Earthquake Science China Earthquake AdministrationBeijing 100036 China China Earthquake Network Center China Earthquake AdministrationBeijing 100036 China

Based on continuous GPS observations within China as well as global GPS tracking network, a calculation has been made of far-field coseismic displacements associated with the December, 2004 (Mw = 9.3) and March, 2005 (Mw = 8.7) earthquakes. The far-field coseismic displacements are associated with the 2004 shock range more than 6000―7000 km in both north-south and east-west dimensions, and depict an undulated wave pattern of contraction and extension. The coseismic displacements associ-ated with the 2005 event, however, are distributed near the epicentral region, and the event itself may be an aftershock of the 2004 earthquake.

关键词：远场同震位移板块边界耦合逆掩断裂作用 GPS

Near-field surface movement during the Wenchuan M_s8.0 earthquake measured by high-rate GPS

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Chinese Science Bulletin 2010年第23期55卷 2529-2534页

作者： YIN HaiTao zhang peizhen GAN WeiJun WANG Min LIAO Hua LI XiaoJun LI Jie XIAO GenRu State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beijing 100029 China Earthquake Administration of Shandong Province Jinan 250014 China Earthquake Administration of Sichuan Province Chengdu 610041 China Institute of Engineering Mechanics China Earthquake Administration Beijing 100080 China

Based on high-rate (1 Hz) GPS data from the Sichuan GPS Continuous Observation Network on the footwall of the Longmenshan Fault, we have characterized the near-field surface movement process during the 5.12 Wenchuan Earthquake. Results show that the maximum deformation near the fault is larger than the deformation set. Stations on the northern segment of the fault moved towards the epicenter first, and then turned toward the vertical orientation of the fault. Deformation of stations on the southern segment is smaller and recovered. The initial motion at all of the stations was downward followed by periodic up and down movements. Comparing the displacement from high-rate GPS and accelerograph data, we can see that they are consistent prior to the arrival of the principal shock, but afterwards a 10 cm difference is found, even though they are synchronized and in phase. More work is yet to be done to explain this. This is the first time that actual the real near-field surface movements of an earth- quake of M >7.0 have been determined in china. These measurements are therefore of high value for studies of surface rupture processes and the analysis of seismic wave travels paths in this region.

关键词： GPS测量地表运动大地震近场汶川高速率龙门山断裂带地表移动过程

Formation of Bulk Intermetallic Compound AgaSn in Slowly-Cooled Lead-Free Sn-4.0 wt pct Ag Solders

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Journal of Materials Science & Technology 2005年第6期21卷 827-830页

作者： Jun SHEN+, Yongchang LIU, Yajing HAN, peizhen zhang and Houxiu GAO College of Materials Science & Engineering, Tianjin University, Tianjin 300072, China College of Materials Science and Engineering Tianjin University Tianjin 300072 China

Sn-Ag alloy system has been regarded as one of the most promising lead-free solder to substitute conventional Sn- Pb eutectic solder. But the formation of bulk Ag3Sn intermetallic compounds （IMCs） during reflow and post heat treatment significantly influences the performance of the solder joints. With an effort to clarify its microstructural evolution as a function of slow cooling rates, the fraction of bulk IMCs within the slowly solidified Sn-4.0 wt pct Ag solder was investigated by standard metallographic and compared with that detected by thermal analysis. It was found that the bulk IMCs fraction determined by thermal analysis corresponds quite well with the microstructure observation results. In accordance with the conventional solidification theory, the lower the applied cooling rate, the fewer the amount of bulk Ag3Sn IMCs formed in Sn-4.0 wt pct Ag alloy. In addition, Vickers hardness measurement results indicated that the relative coarse eutectic Ag3Sn IMCs distributing in the lamellar eutectic structure favored the improvement of the mechanical performance.

关键词： Lead-free solder Intermetallic compounds Microstructure Thermal analysis