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The Feasibility Analysis of Decrease the Reverse Reaction Rate in the Carbothermic Reduction of Magnesia in a Vacuum

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The Feasibility Analysis of Decrease the Reverse Reaction Ra...

Partial AZFc duplications not deletions are associated with male infertility in the Yi population of yunnan province,{2.

Mechanical Engineering and Material Science—2.12.International Conference on Mechanical Engineering and Material Science(MEMS 2.12.

In the present work,the behavior of un-coagulable CO was experimentally investigated during the condensation process of carbothermic reduction of magnesia at condensing zone temperatures ranging from 92. K to 12.3 *** powders and magnesium lump condensates were produced under different conditions and characterized by scanning electron microscopy and energy-dispersive X-ray *** reverse reaction products C and MgO were formed following the process of magnesium vapor condensation and we just found the nearer the temperature of the condensation zone approached the liquid transition temperature,the lower the rate of the reverse reaction between CO and magnesium ***,decreases in the rate of the reverse reaction of magnesium were possible by controlling the condensation temperature in experiments.

关键词： Magnesium Vapor Vacuum Reverse reaction Carbothermic reduction.

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第9期14卷 807-815页

作者： Jun-jie YE Li MA Li-juan YANG Jin-huan WANG Yue-li WANG Hai GUO Ning GONG Wen-hui NIE Shu-hua ZHAO yunnan Key Laboratory of Fertility Regulation and Minority Eugenics Yunnan Population and Family Planning Research Institute State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of Sciences Department of Urology Kunming General Hospital of Chengdu Military Command Haiyuan College Kunming Medical University

Objective:There are many reports on associations between spermatogenesis and partial azoospermia factor c(AZFc) deletions as well as duplications;however,results are conflicting,possibly due to differences in methodology and ethnic *** purpose of this study is to investigate the association of AZFc polymorphisms and male infertility in the Yi ethnic population,residents within yunnan province,{2.Methods:A total of 2.4 infertile patients and 153 fertile subjects were selected in the Yi ethnic *** study was performed by sequence-tagged site plus/minus(STS+/) analysis followed by gene dosage and gene copy definition analysis.Y haplotypes of 2.5 cases and 115 controls were defined by 12.binary markers using single nucleotide polymorphism on Y chromosome(Y-SNP) multiplex assays based on single base primer extension ***:The distribution of Y haplotypes was not significantly different between the case and control *** frequencies of both gr/gr(7.6% vs.8.5%) and b2.b3(6.3% vs.8.5%) deletions do not show significant ***,single nucleotide variant(SNV) analysis shows no significant difference of gene copy definition between the cases and ***,the frequency of partial duplications in the infertile group(4.0%) is significantly higher than that in the control group(0.7%).Further,we found a case with sY12.6 deletion which had two CDY1 copies but removed half of DAZ ***:Our results show that male infertility is associated with partial AZFc duplications,but neither gr/gr nor b2.b3 deletions,suggesting that partial AZFc duplications rather than deletions are risk factors for male infertility in Chinese-Yi population.

关键词： Azoospermia factor c(AZFc) AZFc polymorphism b2.b3 gr/gr Infertility

Joint exploration of crustal structure in Fuzhou basin and its vicinities by deep seismic reflection and high-resolution refraction as well as wide-angle reflection/refraction

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Science china Earth Sciences 2005年第7期48卷 925-938页

作者： ZHU Jinfang1, XU Xiwei2. ZHANG Xiankang3, HUANG Zonglin1, CHEN Xiangxiong1, FANG Shengming3, LIU Baojin3, ZHENG Rongzhang2.4 1. seismological Bureau of Fujian province,Fuzhou 350003,{2. 2. Institute of Geology,{2. Earthquake Administration,Beijing 10002.,{2. 3. Research Center for Exploration Geophysics,{2. Earthquake Administration,Zhengzhou 450002.{2. 4. State Key Laboratory of Earthquake Dynamics,Institute of Geology,{2. Earthquake Administration,Beijing 10002.,{2. seismological Bureau of Fujian province Fuzhou 350003 China Institute of Geology China Earthquake Administration Beijing 100029 China Research Center for Exploration Geophysics China Earthquake Administration Zhengzhou 450002 China State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beijing 100029 China

The Fuzhou basin and its vicinities are located at the northern end of the southeastern coastal seismic zone of the mainland of china. By the joint explorations of high-resolution seismic refraction and wide-angle reflection/refraction as well as deep seismic reflection in the region, which is the first synthetic profile in china, its fine velocity structure and geometric structure from the ground to Moho discontinuity is obtained. The result shows that the crust is obviously layered with a thickness of about 32.km. Basically, it consists of two parts: upper crust and lower crust. The velocity of the upper crust is 5.9-6.2.km/s in which there is a 3-4-km-thick weak low-velocity layer between the depths of 10-15 km, while the velocity of the lower crust in the range of 6.3-7.2.km/s. There exists a strong velocity gradient layer about 3 km thick above the Moho discontinuity whose velocity increases from 6.5 to 7.2. km/s. There exist high-angle normal faults that are small in size and extend only in the shallow crust. These faults are the secondary developed on the hanging wall of westward dipping low-angle normal faults. Thus, their seismogenic ability is limited, however, there exists a high-angle deep fault in the crust from Changle-Zaoan fault zone to seashore fault zone. This deep fault has cut the interface between the upper and lower crusts and Moho discontinuity, and may be the deep structure to trigger destructive earthquake source in future to affect Fuzhou City. These results have advanced the detecting precision of the deep structure in the southeastern coastal seismic zone of the mainland of china. In the aspect of the combined feature of the deep and shallow extensional structures that consist of the westward dipping low-angle normal faults and secondary normal faults on their hanging walls in the upper crust, it is firstly obtained that a united structural interpretation has deepened the knowledge about the deep dynamic process in the southeastern coasta

关键词： deep seismic reflection high-resolution seismic refraction wide-angle.

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腾冲火山地区微震观测(Ⅰ)

地震研究 1998年第4期 53-58页

作者： Ye Jianqing Chen Mingong Liu Xuejun Cai Shaoping Cai Mingjun Qin Jiazheng Huangfu Gang Liu Zuyin (seismological Bureau of yunnan {2., kunming, 650041)

本文综述了腾冲火山地区微震观测台网的建立与所取得的具有研究价值的地震记录。内容包括观测系统性能、台站布局、地震记录。由观测资料表明腾冲火山地区存在微震活动。讨论了台网需要努力的目标。

关键词：微震观测腾冲火山地区

THE LARGE SCALE FLUCTUATION OF ATMOSPHERIC PRECIPITATION PRIOR TO DEVASTATING EARTHQUAKES OF ABOUT M8.0 IN CENTRAL JAPAN

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地震研究 1984年第3期 373-380页

作者： Zhao Hongsheng, Yang Zhihan (seismological Bureau of yunnan {2.)

During the 75 years between 1886 and 1960, Kinki, Chubu, Kanto and other areas of Japan were struck by 4 strong earthquakes of about magnitude 8.0 and a number of M 7 shocks. Prior to the occurrence of these shocks, drastic fluctuations of atmospheric pracipitation over large areas (hundreds of thousand square kilometers) were detected in the surroundings of the earthquake areas. Although the physical mechanism of precipitation variations affecting seismicity is still a problem awaiting for further investigations, such kind of distinct statistical relationship has obviously furnished references for the practice of earthquake prediction.

关键词： THE LARGE SCALE FLUCTUATION OF ATMOSPHERIC PRECIPITATION PRIOR TO DEVASTATING EARTHQUAKES OF ABOUT M8.0 IN CENTRAL JAPAN

云南近期几次M≥6.0级地震前水氡异常特征

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四川地震 2004年第1期 37-41页

作者：唐采云南省地震局云南昆明650041

对1998年11月19日宁蒗6 2.地震,2.00年1月15日姚安6 5级地震和2.01年10月2.日永胜6 0级地震前后的云南水氡资料异常,用形态对比、二倍标准差等常用方法进行分析研究,结果表明,在M≥6 0级地震前,震中附近都有台站的水氡资料会出现长达1... 详细信息

对1998年11月19日宁蒗6 2.地震,2.00年1月15日姚安6 5级地震和2.01年10月2.日永胜6 0级地震前后的云南水氡资料异常,用形态对比、二倍标准差等常用方法进行分析研究,结果表明,在M≥6 0级地震前,震中附近都有台站的水氡资料会出现长达1年以上的长期趋势异常;4个月的长、中期异常占异常台站的50%左右;震前3个月内出现的短临异常占异常台站的40%～50%,临震异常在震前几天到1个月之间出现,幅度大,时间短。3次M≥6 0级地震前,水氡异常总的特点是:长、中、短、临异常分别在单台表现突出;异常形态区别明显,异常不连续性特征普遍存在,继承性异常有所表现。

关键词：云南水氡地震前兆异常

Local Anomalies of the Load-Unload Response of the Geomagnetic Field to Solar Wind and Earthquakes in Southwest china

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Earthquake Research in china 1998年第4期12卷 92-98页

作者： Xu Chunrong, Lin Yunfang, Lu Guifang, Zhao Ming, Li Shengxiang, Gou Xianbin, Yu Jingzhong, and Zeng XiaopingInstitute of Crustal Dynamics, CSB, Beijing 100085, china Institute of Geophysics, CSB, Beijing 100081, china {2. Bureau of yunnan province, kunming 650041, china {2. Office of Chongqing Municipality, Chongqing 630056, china

Many earthquakes occurred during the period 1994 -1996 in Sichuan and yunnan provinces, Southwest{2.. Taking the process of the initial main phase recovery phase of the magnetic storm as the process of load-unload response of the geomagnetic field to the solar wind, we have estimated and analyzed the distribution in time and space of the load-unload response ratio P(z) of the storm time disturbance daily variation of the vertical component Z of the geomagnetic field at ten stations in Southwest{2.. We found that the area with high ratio P(z) was just the area where moderately strong earthquakes would occur from 44 days to 15 months later. The relationship between the high ratio P(z) and weather disasters in both seismic and non-seismic areas is discussed briefly.

关键词： Magnetic storm Load-unload response ratio of solar wind Seismogeomagnetic relationship.

Crustal structure of Gondwana-and Yangtze-typed blocks:An example by wide-angle seismic profile from Menglian to Malong in western yunnan

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Science china Earth Sciences 2005年第11期48卷 1828-1836页

作者： ZHANG Zhongjie1, BAI Zhiming1, WANG Chunyong2. TENG Jiwen1, Lü Qingtian3, LI Jiliang1, SUN Shanxue1 & WANG Xinzheng1 1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 10002., china 2. Institute of Geophysics, Chinese seismological Bureau, Beijing 100081, china 3. Institute of Deposition Resource, Chinese Academy of Geological Sciences, Beijing 100037, china Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Institute of Geophysics Chinese Seismological Bureau Beijing China Institute of Deposition Resource Chinese Academy of Geological Sciences Beijing China

The wide-angle seismic profile between Menglian and Malong crosses the Baoshan block (Gondwana-typed), and Simao and southwestern Yangtze blocks (Yangtze-typed). By in-terpreting the wide-angle seismic data, we obtained the seismic crust/upper mantle structure of P-wave velocities together with the seismic reflections of these three blocks, Changning- Menglian and Mojiang suture zones among the mentioned three blocks. Our interpreting results demonstrate that the P-wave crustal velocity of Simao block is slower than that of Baoshan and southwestern Yangtze block and the crustal thickness gradually thickens from the Baoshan block, Simao to southwestern Yangtze block. Crustal reflection patterns of these three blocks have dis-tinct differences too. For the Gondwana-typed blocks, seismic reflections in the upper crust are well developed while in middle-lower crust they are very weak. The crustal reflections in the Yangtze block are very well developed. The crustal reflection patterns in Simao and southwest-ern Yangtze blocks are distinguishable. The average thickness of the crust in the studied area is about 40 km. And we make some discussions on the crustal thickening model of the three blocks in western yunnan and tectonic setting of seismic developing and interaction of Gondwana and Yangtze blocks.

关键词： Gondwana blocks,Yangtze blocks,wide-angle profile,crustal structure,tectonic setting

The Neotectonic Movements of the Changle-Zhao'an Fault Belt in Fujian

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Acta Geologica Sinica(English Edition) 1988年第1期1卷 45-57页

作者： Zhang Hunan seismological Bureau of Guangdong province, Guangzhou seismological Bureau of Guangdong province Guangzhou

The Changle-Zhao’ an fault belt is an important belt bordering the southeast coast of china. It wasformed in pre-Mesozoic time and has undergone polyphase activities of different modes ever since. Through astudy of the data concerning the Cenozoic strata, volcanism. seismicity, hydrothermal activity and crustaldeformation, the characteristics of the neotectonic movement of this fault belt were preliminarily ascertained,the amplitudes and rates of recent faulting in some places were calculated, and the intensities of the activities invarious structural basins along the fault zone were compared. Besides, this paper also discusses the main causefor the origin of the Quanzhou-Shantou strong earthquake tectonic zone.

关键词： The Neotectonic Movements of the Changle-Zhao’an Fault Belt in Fujian