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国际税收 2024年第1期 33-39页

作者：国家税务总局四川省税务局、四川省国际税收研究会联合课题组何睿冯迪李杰罗元义不详

党的二十大擘画了全面建设社会主义现代化国家、全面推进中华民族伟大复兴的宏伟蓝图和实践路径,特别是对推进中国式现代化作出了全面部署,这对税收现代化提出了新的更高要求。本文在分析税收现代化与中国式现代化之间内在逻辑的基础上... 详细信息

党的二十大擘画了全面建设社会主义现代化国家、全面推进中华民族伟大复兴的宏伟蓝图和实践路径,特别是对推进中国式现代化作出了全面部署,这对税收现代化提出了新的更高要求。本文在分析税收现代化与中国式现代化之间内在逻辑的基础上,探求税收现代化服务国家现代化的国际经验与教训,研究税收现代化服务中国式现代化的总体考量、基本思路和路径选择。

关键词：税收现代化中国式现代化税收治理

Change in Sediment Load of the Yangtze River after Wenchuan Earthquake

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Journal of Mountain Science 2010年第1期7卷 100-104页

作者： CHENG Genwei HE Xiubin CHEN Guirong TAO Heping Key Laboratory of Mountain Environment Evolvement and Regulation. institute of Mountain Hazards & Environment CAS Chengdu 610041 China Siehuan Hydrology &Water Resource Survey Bureau Chengdu 610041 China

On May 12. 2.08, an earthquake of 8.0 magnitude on the Richter scale and its numerous aftershocks devastatingly hit Wenchuan County and its nearby region along the Longman Mountains in sichuan Province, china. The heavy ruined area was up to 30,000km2.and 13% of its land surface was denuded by the extremely terrible quakes. The mountain collapses, landslides and debris flows induced by the earthquake not only scared the landscape at the immense scale, but also poured L66-billion-m3 sediment combined with offscourings and rubble into the Yangtze River and its breaches. This amount of sediments is 3 times more than the normal amount discharged into the Yangtze River, and will significantly increase sediment transportation of rivers and decrease storage capacities of reservoirs downstream. The dramatic increase in sediment load will imperil the engineering {2. and impact the operation of the giant Three-Gorge Hydro-power Station if no proper prevention measures are taken.

关键词： Wenchuan earthquake sediment load the Yangtze River

Features of the fault system and its relationship with migration and accumulation of hydrocarbon in Liaodong Bay

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Petroleum Science 2011年第3期8卷 251-263页

作者： Xu Guosheng Ma Ruolong Gong Deyu Zhou Donghong Li Jianping Guo Yonghua Yuan Haifeng Wu Changrong State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu Sichuan 610059 China Exploration and Development research institute Tianjin Branch of CNOOC （China） Co. Ltd. Tanggu Tianjin 300452 China

The fault system of Liaodong Bay developed extensively under the control of the Tanlu Fault. The fault system can be grouped into strike-slip faults of grade Ⅰ, trunk faults of grade Ⅱand branch faults （induced faults） of grade Ⅲ respectively based on its developmental scale. The faults of grade Ⅰ and Ⅱwere deep, early and large while the faults of grade Ⅲwere shallow, late and small. The formation, evolution and distribution features played a significant role in controlling the migration of oil and gas in both horizontal and vertical directions. The fluid transfer in the fault system occurred in the process of faulting. The strike-slip and trunk faults moved actively forming predominant pathways for oil and gas migration. The branch faults, with weak activity, generally controlled the development of traps and were beneficial for the accumulation and preservation of oil and gas. The faults of grade Ⅰ and Ⅱ formed the major migration pathways for oil and gas, but their fault activity rates appeared to vary along their strikes. The zones with a relatively low fault activity rate might be favorable for oil and gas accumulation. When the activities of strike-slip, trunk, and branch faults came to a halt, the fault seal behavior had a vitally important effect on the accumulation of oil and gas. The controlling role of the fault over fluid distribution was further analyzed by calculating the fault activity quantitatively.

关键词： Liaodong Bay fault system fault activity rate fault seal behavior migration andaccumulation of oil and gas

Thymic epithelial progenitor cells and thymus regeneration: an update

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Cell research 2007年第1期17卷 50-55页

作者： L ianjun Zhang~(1,2. Liguang Sun~(1,3) Yong Zhao~1 ~1Transplantation Biology research Division,State Key Laboratory of Biomembrane and Membrane Biotechnology,institute of Zoology,~2.raduate University of the Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing 100080,{2.,~3School of public Health,Jilin University,Changchun 13002.,{2. Transplantation Biology research Division State Key Laboratory of Biomembrane and Membrane Biotechnology Institute of Zoology Chinese Academy of Sciences Beijing China Graduate University of the Chinese Academy of Sciences Chinese Academy of Sciences Beijing China School of public Health Jilin University Changchun China

The thymus provides the essential microenvironment for T-cell development and *** epithelial cells(TECs),which are composed ofthymic cortical epithelial cells (cTECs) and thymic medullary epithelial cells (mTECs),have been well documented to be critical for these tightly regulated *** has long been controversial whether thecommon progenitor cells of TECs could give rise to both cTECs and *** progress has been made to charac-terize the common TEC progenitor cells in recent *** herein discuss the sole origin paradigm with regard to TECdifferentiation as well as these progenitor cells in thymus regeneration.

关键词： thymic epithelial progenitor cells thymus organogenesis thymus regeneration

GIS-based Earthquake-Triggered Landslide Hazard Zoning Using Contributing Weight Model

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Journal of Mountain Science 2010年第4期7卷 339-352页

作者： WANG Meng institute of Mountain Hazards and Environment ChineseAcademy of Science Chengdu 610041 China Graduate University of ChineseAcademy of Sciences Belling 100049 China Key Laboratory of Geo-surface Process and Mountain Hazards Institute of Mountain Hazards and Environment Chinese Academy of Science Chengdu 610041 China

Earthquake-triggered landslides have aroused widespread attention because of their tremendous ability to harm people's lives and *** best way to avoid and mitigate their damage is to develop landslide hazard maps and make them available to the public in advance of an *** construction can then be built according to the level of hazard and existing structures can be retrofit as *** recent years various approaches have been made to develop landslide hazard maps using statistical analysis or physical ***,these methods have *** study introduces a new GIS-based approach,using the contributing weight model,to evaluate the hazard of seismically-induced *** this study,the city and surrounding area of Dujiangyan was selected as the research area because of its moderate-high seismic *** parameters incorporated into the model that related to the probability of landslide occurrence were:slope gradient,slope aspect,geomorphology,lithology,base level,surface roughness,earthquake intensity,fault proximity,drainage proximity,and road *** parameters were converted into raster data format with a resolution of 2.×2.m2.*** of the GIS correlations shows that the highest earthquake-induced landslide hazard areas are mainly in the hills and in some of the moderately steep mountainous areas of central *** highest hazard zone covers an area of 11.1% of the study area,and the density distribution of seismically-induced landslides was 3.02./km2.from the 2.08 Wenchuan *** moderately hazardous areas are mainly distributed within the moderately steep mountainous regions of the northern and southeastern parts of the study area and the hills of the northeastern part;covering 32.0% of the study area and with a density distribution of 2.12./km2.resulting from the Wenchuan *** lowest hazard areas are mainly distributed in the topographically flat plain in the northeas

关键词： Earthquake-triggered landslide GIS Contributing weight model Hazard zoning

Prediction of Debris-flow Danger Area by Combining Hydrological and Inundation Simulation Methods

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Journal of Mountain Science 2011年第1期8卷 1-9页

作者： CUI Peng Key Laboratory of Mountain Hazards and Earth Surface Process Chinese Academy of Sciences Chengdu 610041 China institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu 610041 China Graduate School of Chinese Academy of Sciences Beijing 100049 China

Debris flows have caused serious human casualties and economic losses in the regions strongly affected by the Ms8.0 Wenchuan earthquake of 2.o8. Debris flow mitigation and risk assessment is a key issue for reconstruction. The existing methods of inundation simulation are based on historical disasters and have no power of prediction. The rain- flood method can not yield detailed flow hydrograph and does not meet the need of inundation simulation. In this paper, the process of water flow was studied by using the Arc-SCS model combined with hydraulic method, and then the debris flow runoff process was calculated using the empirical formula combining the result from Arc-SCS. The peak discharge and runoff duration served as input of inundation simulation. Then, the dangerous area is predicted using kinematic wave method and Manning equation. Taking the debris flow in Huashiban gully in Beichuan County, sichuan Province, china on 2. Sep. 2.o8 as example, the peak discharge of water flow and debris flow were calculated as 35.52.m3·s-1 and 2.5.66 m3·s-, with error of 4.15% compared to the measured values. The simulated area of debris-flow deposition was 161,500 m2. vs. the measured area of 144,097 m2. in error of 81.75%. The simulated maximum depth was 12.3 m, consistent with the real maximum depth between lO and 15 m according to the field survey. The minor error is mainly due to the flow impact on buildings and variations in cross-section configuration. The present methodology can be applied to predict debrisflow magnitude and evaluate its risk in other watersheds inthe earthquake area.

关键词： Debris flow Arc-SCS model Inundation simulation Risk analysis Wenchuan earthquake

Status of study on biological and toxicological effects of nanoscale materials

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Science china Chemistry 2005年第5期48卷 385-394页

作者： WANG Bing1, FENG Weiyue1, ZHAO Yuliang1, XING Gengmei1, CHAI Zhifang1, WANG Haifang2.& JIA Guang3 1. Laboratory for Bio-Environmental Health Sciences of Nanoscale Materials (Nanosafety Lab), institute of High Energy Physics, Chi-nese Academy of Sciences, Beijing 100049,{2. 2. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871,{2. 3. Department of Occupational and Environmental Health Sciences, School of public Health, Peking University, Beijing 100083,{2. Laboratory for Bio-Environmental Health Sciences of Nanoscale Materials (Nanosafety Lab) Institute of High Energy Physics Chinese Academy of Sciences Beijing China College of Chemistry and Molecular Engineering Peking University Beijing China Department of Occupational and Environmental Health Sciences School of Public Health Peking University Beijing China

Because the physical and chemical properties of nanosized materials mostly differ from the existing microsized materials, their potential impacts on human health and the envi-ronment will be topics under the serious discussions in press and in a number of international scientific journals. We analyze and summarize the existing data of the experimental study on the biological activities and adverse effects of nanoscale materials/particles including single wall carbon nanotubes, multi wall carbon nanotubes, titanium oxide and iron powders. Though some biological behaviors of nanoscale materials observed cannot be understood on the basis of the current knowledge, as the existing data are mostly preliminary, it is too early to make some ex-clusive conclusions on biological activities (or the toxicity) of any of nanoscale materials. The experimental techniques, the current topics, and the future research directions for this new re-search field are also discussed.

关键词： nanomaterials, single wall carbon nanotubes, multi wall carbon nanotubes, titanium oxide and iron, biological activity and toxicological effect.

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论高层建筑疏散通道防烟与排烟

大自然探索 1998年第3期17卷 42-45页

作者：李章盛公安部四川消防科学研究所

本文在分析高层建筑发生火灾时疏散通道防烟要求的基础上，简述国内“八五”科技攻关专题所取得防排烟试验研究的最新成果，进而提出高层建筑疏散通道防排烟设计的建议。

关键词：高层建筑火灾防烟排烟设计疏散通道

STRAIN INDUCED PRECIPITATION OF Ti(V)N(C)IN HIGHCARBON STEEL

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Acta Metallurgica Sinica(English Letters) 1990年第6期3卷 446-448页

作者： FANG Shufang ZHANG Jian Panzhihua institute of Iron and Steel research,Panzhihua,{2. Laboratory of Physics,Panzhihua institute of Iron and Steel research,Dukou City,617000 sichuan,{2.

The precipitation of Ti(V)N(C)in high-carbon steel PD_3 during thermomechanicol treatment at austenitic temperatures after deformation has been *** average size of Ti(V)N(C)particles may reduce with the increase of strain and the decrease of thermomechanical treatment temperature,and vise *** growth of Ti(V)N(C)particles at 92.°C is found to be controlled by the interface reaction between precipitated particles and matrix.

关键词： Ti(V)N(C) deformation size of particle