Preparation for the Congress The Committee for the Organization of the 9th International Geological Congress(Vienna,1903),taking account of the views of a wide range of scientists,requested the organization of the 190...Preparation for the Congress The Committee for the Organization of the 9th International Geological Congress(Vienna,1903),taking account of the views of a wide range of scientists,requested the organization of the 1906 Congress by the geologists of the Instituto Geológico Nacional de México(IGN).The letter of invitation,dated 3 February 1903,was signed by the paleontologist Karl Dienner(1862–1928),Secretary General of the IGC.The meeting should have the mining engineer JoséGuadalupe Aguilera Serrano(1857–1941)as its President.The first requirement was the authorization of the dictator of Mexico,Joséde la Cruz Porfirio Díaz Mori(1830–1911),who had been in power since 1884(Anon.,1907).展开更多
20122165 Gao Jianfei ( Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China );Ding Diping Silicon Isotope Compositions of Susp...20122165 Gao Jianfei ( Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China );Ding Diping Silicon Isotope Compositions of Suspended Matter in the Yellow River,China,and Its Significance in Geological Environment ( Acta Geologica Sinica,ISSN0001-5717,CN11-1951 / P,85 ( 10 ), 2011,p.1613-1628,12illus.,7tables,37refs. )展开更多
20070285 Fu Xiaofang (Institute of Geology and Mineral Resources, SBGMR, Chengdu, Sichuan 610081); Hou Liwei Potential of Mineral Resources of Rare and Dispersed Elements in Sichuan Province and Countermeasures of Exp...20070285 Fu Xiaofang (Institute of Geology and Mineral Resources, SBGMR, Chengdu, Sichuan 610081); Hou Liwei Potential of Mineral Resources of Rare and Dispersed Elements in Sichuan Province and Countermeasures of Exploitation (Acta Geologica Sichuan, ISSN1006-0995, CN51-1273/P, 26(1), 2006, p.10-18, 6 illus., 15 refs.) Key words: mineral resources, Sichuan展开更多
Damming landslides are very common in China, they ever blocked the rivers and streams completely or partly, and form natural lakes. Now more than 150 damming landslides in China are recognized through field investigat...Damming landslides are very common in China, they ever blocked the rivers and streams completely or partly, and form natural lakes. Now more than 150 damming landslides in China are recognized through field investigation and data collection indoors. These Landslides distribute in steep mountainous counties around the Qinghai—Tibet Plateau, and mainly of which in southwest China and northwest China.. Studies show that the distribution of damming landslides has a close relation with the event of the Tibet plateau upheaval. The thermodynamic effect on the free atmosphere results from rapid upheaval of Qinghai\|Tibet plateau is more and more intensive, it causes air to circulate from east to west. In winter, the high Tibet Plateau leads the cool air gather quickly and high cool potential to be stronger. On one side, an anticyclone cool high pressure forms near the ground surface at the altitude of 4000～5000m, and produces winter monsoon wind. On the other side, the shielding effect of the plateau impedes the air from Siberia touching with the air from south Indian Ocean, which causes the cool air from Siberia enters China frequently and strengthens the cool and drought in northwest China. In summer, the monsoon wind is impeded by the plateau and cannot enter into north China, where it is dry, it can only moves around the plateau and at the edge enters into southwest, south, middle and east China, where the rainfall process is strong. Thus south and east of the plateau become the areas with many damming landslides resulted from heavy rain.展开更多
The impact of quantum confinement on the electrical characteristics of ultrathin-channel GeO1 n- MOSFETs is investigated on the basis of the density-gradient model in TCAD software. The effects of the channel thickne...The impact of quantum confinement on the electrical characteristics of ultrathin-channel GeO1 n- MOSFETs is investigated on the basis of the density-gradient model in TCAD software. The effects of the channel thickness （Tch） and back-gate bias （Vbg） on the electrical characteristics of GeOI MOSFETs are examined, and the simulated results are compared with those using the conventional semi-classical model. It is shown that when T^h 〉 8 rim, the electron conduction path of the GeOI MOSFET is closer to the front-gate interface under the QC model than under the CL model, and vice versa when Tch 〈 8 rim. Thus the electrically controlled ability of the front gate of the devices is influenced by the quantum effect. In addition, the quantum-mechanical mechanism will enhance the drain-induced barrier lowering effect, increase the threshold voltage and decrease the on-state current; for a short channel length （≤ 30 nm）, when Tch 〉 8 nm （or 〈 8 nm）, the quantum-mechanical mechanism mainly impacts the subthreshold slope （or the threshold voltage）. Due to the quantum-size effect, the off-state current can be suppressed as the channel thickness decreases.展开更多
20061759 Chen Yongning (Anhui Academy of Geological Survey, Hefei 230001, China) Application of Comprehensive Geophysical Prospecting to Estimate of Solid Ore Reserves (Geology of Anhui, ISSN 1005-6157, CN 34-1111/P, ...20061759 Chen Yongning (Anhui Academy of Geological Survey, Hefei 230001, China) Application of Comprehensive Geophysical Prospecting to Estimate of Solid Ore Reserves (Geology of Anhui, ISSN 1005-6157, CN 34-1111/P, 15(2), 2005, p.97-100, 3 illus. , 5 refs. , with English abstract)geophysical exploration, mineral resources 20061760 Dong Shuwen (Chinese Academy of Geological Sciences, Beijing 100037); Gao Rui A Deep Seismic Reflection Profile Across a Foreland of the Dabie Orogen, China (Acta Geologica Sinica, ISSN 0001-5717, CN 11-1951/P, 79(5), 2005, p.595-601, 4 illus. , 20 refs. ) Key words: foreland basins, deep seismic sounding, Dabie展开更多
文摘Preparation for the Congress The Committee for the Organization of the 9th International Geological Congress(Vienna,1903),taking account of the views of a wide range of scientists,requested the organization of the 1906 Congress by the geologists of the Instituto Geológico Nacional de México(IGN).The letter of invitation,dated 3 February 1903,was signed by the paleontologist Karl Dienner(1862–1928),Secretary General of the IGC.The meeting should have the mining engineer JoséGuadalupe Aguilera Serrano(1857–1941)as its President.The first requirement was the authorization of the dictator of Mexico,Joséde la Cruz Porfirio Díaz Mori(1830–1911),who had been in power since 1884(Anon.,1907).
文摘20122165 Gao Jianfei ( Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China );Ding Diping Silicon Isotope Compositions of Suspended Matter in the Yellow River,China,and Its Significance in Geological Environment ( Acta Geologica Sinica,ISSN0001-5717,CN11-1951 / P,85 ( 10 ), 2011,p.1613-1628,12illus.,7tables,37refs. )
文摘20070285 Fu Xiaofang (Institute of Geology and Mineral Resources, SBGMR, Chengdu, Sichuan 610081); Hou Liwei Potential of Mineral Resources of Rare and Dispersed Elements in Sichuan Province and Countermeasures of Exploitation (Acta Geologica Sichuan, ISSN1006-0995, CN51-1273/P, 26(1), 2006, p.10-18, 6 illus., 15 refs.) Key words: mineral resources, Sichuan
文摘Damming landslides are very common in China, they ever blocked the rivers and streams completely or partly, and form natural lakes. Now more than 150 damming landslides in China are recognized through field investigation and data collection indoors. These Landslides distribute in steep mountainous counties around the Qinghai—Tibet Plateau, and mainly of which in southwest China and northwest China.. Studies show that the distribution of damming landslides has a close relation with the event of the Tibet plateau upheaval. The thermodynamic effect on the free atmosphere results from rapid upheaval of Qinghai\|Tibet plateau is more and more intensive, it causes air to circulate from east to west. In winter, the high Tibet Plateau leads the cool air gather quickly and high cool potential to be stronger. On one side, an anticyclone cool high pressure forms near the ground surface at the altitude of 4000～5000m, and produces winter monsoon wind. On the other side, the shielding effect of the plateau impedes the air from Siberia touching with the air from south Indian Ocean, which causes the cool air from Siberia enters China frequently and strengthens the cool and drought in northwest China. In summer, the monsoon wind is impeded by the plateau and cannot enter into north China, where it is dry, it can only moves around the plateau and at the edge enters into southwest, south, middle and east China, where the rainfall process is strong. Thus south and east of the plateau become the areas with many damming landslides resulted from heavy rain.
基金supported by the National Natural Science Foundation of China(No.61274112)
文摘The impact of quantum confinement on the electrical characteristics of ultrathin-channel GeO1 n- MOSFETs is investigated on the basis of the density-gradient model in TCAD software. The effects of the channel thickness （Tch） and back-gate bias （Vbg） on the electrical characteristics of GeOI MOSFETs are examined, and the simulated results are compared with those using the conventional semi-classical model. It is shown that when T^h 〉 8 rim, the electron conduction path of the GeOI MOSFET is closer to the front-gate interface under the QC model than under the CL model, and vice versa when Tch 〈 8 rim. Thus the electrically controlled ability of the front gate of the devices is influenced by the quantum effect. In addition, the quantum-mechanical mechanism will enhance the drain-induced barrier lowering effect, increase the threshold voltage and decrease the on-state current; for a short channel length （≤ 30 nm）, when Tch 〉 8 nm （or 〈 8 nm）, the quantum-mechanical mechanism mainly impacts the subthreshold slope （or the threshold voltage）. Due to the quantum-size effect, the off-state current can be suppressed as the channel thickness decreases.
文摘20061759 Chen Yongning (Anhui Academy of Geological Survey, Hefei 230001, China) Application of Comprehensive Geophysical Prospecting to Estimate of Solid Ore Reserves (Geology of Anhui, ISSN 1005-6157, CN 34-1111/P, 15(2), 2005, p.97-100, 3 illus. , 5 refs. , with English abstract)geophysical exploration, mineral resources 20061760 Dong Shuwen (Chinese Academy of Geological Sciences, Beijing 100037); Gao Rui A Deep Seismic Reflection Profile Across a Foreland of the Dabie Orogen, China (Acta Geologica Sinica, ISSN 0001-5717, CN 11-1951/P, 79(5), 2005, p.595-601, 4 illus. , 20 refs. ) Key words: foreland basins, deep seismic sounding, Dabie
