检索结果-南通市图书馆

Fractal Correction of Well Logging Curves

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of china University of Geosciences 2001年第3期12卷 272-275页

作者： Li Qingmou Cheng Qiuming institute of Geology & Geophysics, {2. academy of Sciences, beijing 100101 Department of Earth and atmospheric Science, York University, Toronto, Ontario, Canada, M3J 1P3 institute of Geology & Geophysics Chinese Academy of Sciences Beij ing 100101 Department of Earth and atmospheric Science York University Toronto Ontario Canada M3J 1P3

It is always significant for assessing and evaluation of oil bearing layers, especially for well logging data processing and interpretation of non marine oil beds to get more accurate physical properties in thin and inter thin layers. This paper presents a definition of measures and the measure presents power law relation with the corresponded scale described by fractal theory. Thus, logging curves can be reconstructed according to this power law relation. This method uses the local structure nearby concurrent points to compensate the average effect of logging probes and measurement errors. As an example, deep and medium induced conductivity (IMPH and IDPH) curves in ODP Leg 12. Hole 797C are reconstructed or corrected. Corrected curves are with less adjacent effects through comparison of corrected curves with original one. And also, the power spectra of corrected well logging curve are abounding with more resolution components than the original one. Thus, fractal correction method makes the well logging more resoluble for thin beds.

关键词： fractal thin bed well logging singularity of well logging well logging correction.

Discovery of C4 species at high altitude in Qinghai-Tibetan Plateau

在线全文

学校读者我要写书评

暂无评论

Discovery of C4 species at high altitude in Qinghai-Tibetan ...

中国科学院地质与地球物理研究所2.04学术年会

作者： WANG Luo~1,L Houyuan~1,WU Naiqin~1,CHU Duo~2. HAN Jiamao~1,WU Yuhu~3,WU Haibin~4 & GU Zhaoyan~1 1.institute of Geology and Geophysics,{2. academy of Sciences. beijing 10002.,china 2.Tibet institute of Plateau atmospheric and Environmental Sciences, Lhasa 850000.china: 3.Northwest institute of Plateau Biology.{2. academy of Sciences. Xining 810000,china 4.institute of Earth Environment.{2. academy of Sciences,Xi’an 710075.china

Plant specimens are collected from the areas between latitude 2.°42.N and 40°57′N,and longitude 88°93′E and 103°2.′E,with an altitudinal range from 2.10 to 5050 m above the sea level in Qinghai-Tibetan *** stable carbon isotope analysis indicates that two of Chenopodiaceae and six of Poaceae in the samples are C *** of the C plants are found in 11 spots with altitudes above 3800 m, and Pennisetum centrasiaticum,Arundinella yunnanensis and Orinus thoroldii are present in six spots above 4000 m,even up to 452. *** low CO.,partial pressure,that sufficient energy of high light improving C plant’s tolerance of low temperature and precipitations concentrating in growing season probably are favorable for C4 plants growing at high altitude in Qinghai-Tibetan Plateau.

关键词： Qinghai-Tibetan Plateau high altitude C4 plants

Crystal and Molecular Structure of Quinide

在线全文

cnki会议

学校读者我要写书评

暂无评论

chinese Journal of Structural Chemistry 1996年第5期15卷 400-403页

作者： WANG Gang-Li ZHAO Shu-Jie CHEN De-Chang(National institute for the Control of Pharmaceutical and Biological Product, beijing, 100050)LU Yang WU Nan ZHENG Qi-Tai(institute of Material Medical,the chinese academy of Medical Sciences, beijing, 100050) Natl. Inst. Contr. Pharmaceut./B.P. Beijing 100050 institute of Material Medical Chinese Academy of Medical Sciences Beijing 100050

A pure title compound was isolated from water soluble extraction of the fruits of Gardenia sootepensis Hutch.,and its crystal structure was determined by X-ray diffraction. The crystal, chemical formula C_7H_(10)O_5 and Mr 174. 15, is colorless,transparent and belongs to monoclinic system, space group P2.1. The crystal data are as follows:a=6.467(4), b=18.349(4), c=7. 041(4), β= 116. 2. (5)°,V=749.7(6), Z=4,Dx=1.543 g/cm￣3,F(000)=368,μ=0.08 mm-1,λ(MoKα) =0. 7106,R=0.063. It is weak hydrobonds that result in slight conformation difference between the intermolecular H-bond associated molecules.

关键词： gardenia sootepensis quinide crystal structure

Stem cell research:from molecular physiology to therapeutic applications

在线全文

学校读者我要写书评

暂无评论

Science china(Life Sciences) 2009年第7期52卷 597-598页

作者： Chengyu Jiang Department of Biochemistry and Molecular Biology,Peking Union Medical College,chinese academy of Medical Sciences,No.5 DongDanSanTiao,{2.,100005,P.R.china Department of Biochemistry and Molecular Biology Peking Union Medical College Chinese Academy of Medical Sciences No. 5 DongDanSanTiao Beijing 100005 P. R. China

Stem cell research promises remedies to many devastating diseases that are currently incurable, ranging from diabetes and Parkinson’s disease to paralysis. Totipotent embryonic stem cells have great potential for gen... 详细信息

关键词： cell Stem cell research

Proteomic analysis of rice (Oryza sativa) seeds during germination

在线全文

学校读者我要写书评

暂无评论

Proteomic analysis of rice (Oryza sativa) seeds during germi...

第二届全国植物蛋白质组学学术研讨会

作者： Pingfang Yang~1 Xiaojuan Li~1 Xiaoqin Wang~2.Hui Chen~1 Fan Chen~(3*) Shihua Shen~(1*) 1 Key Laboratory of Photosynthesis and Environmental Molecular Physiology,institute of Botany,chinese {2. of Sciences,beijing,china 2.College of Life Sciences,Capital Normal University,beijing,china 3 institute of Genetics and Developmental Biology,chinese {2. of Sciences,beijing,china

Although seed germination is a major subject in plant physiological research,there is still a long way to go to elucidate the mechanism of seed ***, functional genomic strategies have been applied to study the germina...

关键词：

Radiative forcing and temperature response of dust aerosols over East Asia in the latest decade

在线全文

cnki会议

学校读者我要写书评

暂无评论

Research in Cold and Arid Regions 2012年第4期04卷 351-356页

作者： XingTao Su 1,HanJie Wang 2.ZhiBiao Zhang 3 1.institute of Meteorology,PLA University of Science and Technology,Nanjing,Jiangsu 2.1101,china 2.Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,{2. academy of Science,beijing 10002.,china 3.beijing institute of Applied Meteorology,beijing 10002.,china institute of Meteorology PLA University of Science and TechnologyNanjingJiangsu 211101China Key Laboratory of Regional Climate-Environment Research for Temperate East Asia Chinese Academy of ScienceBeijing100029China beijing institute of Applied Meteorology Beijing 100029China

A regional climate model,RegCM3,coupled with an online dust module,is used to simulate the radiative forcing(RF) and temperature response of dust aerosols over East Asia in the latest decade(2.00-2.09).The simulation results show that the geographical and seasonal differences of dust aerosols distribution over East Asia are *** exist two extremes of dust aerosols with column burden(CB) greater than 1,000 mg/m 2.;one is in the Taklimakan Desert of the Xinjiang Uigur Autonomous Region,china,and the other is in the Badain Jaran Desert of the Inner Mongolian Autonomous Region,*** maximum value of CB appears in spring,the secondary maximum in winter,and the minimum in *** RF of dust aerosols has distribution characteristics similar to *** regional averaged RF over East Asia at the top of atmosphere(TOARF) is 1.72.W/m2.in spring and 1.17 W/m2.in autumn,and that at the surface(SURRF) is 4.34 W/m2.in spring and 2.33 W/m2.in *** temperature at the surface is decreased by dust aerosols;the regional averaged temperature decrease over East Asia is 0.154 °C in spring and 0.085 °C in *** are different impacts of dust aerosols on air temperature at different *** air temperature is decreased by dust aerosols in the lower troposphere,but the extent of the decrease diminishes with increasing *** air temperature is in fact increased by dust aerosols at the height of 300-400 hPa in spring,which is greatly different from that in autumn.

关键词： dust aerosols column burden radiative forcing temperature

REE Geochemistry and Mineralization Characteristics of the Zudong and Gnanxi Granites, Jiangxi Province

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 1989年第2期63卷 139-157页

作者： Huang Dianhao, Wu Chengyu institute of Mineral Deposits, chinese {2. of Geological Sciences, beijing and Han Jiuzhu Southern Jiangxi Geological Survey Party, Jiangxi Bureau of Geology and Mineral Resources, Ganzhou Zhang Zhong min institute of Mineral Deposits Chinese Academy of Geological Sciences Beijing China

The Zudong and Guanxi granites are original rocks of the ion adsorption-type HREE and LREE deposits in weathering crust of granites. The ΣREE value and LREE/HREE ratio of the Zudong granite are 2.4 ppm and 0.81-0.2. respectively, and the average Y/ΣREE ratio is 35.8-54.5%. This is mainly due to magmatic crystallization and evolution and deuteric metasomatism (albitization, muscovitization and fluorite-doveritization). These alterations resulted in endogenic mineralizations of yttrium-group REE fluorine carbonates, silicates and arsenates. The Guanxi granite is characterized by LREE enrichment (the average LREE/HREE ratio is 2.43).

关键词： REE Geochemistry and Mineralization Characteristics of the Zudong and Gnanxi Granites Jiangxi Province

A Filament-Associated Halo Coronal Mass Ejection

在线全文

学校读者我要写书评

暂无评论

chinese Journal of Astronomy and Astrophysics 2001年第1期1卷 85-98页

作者： Jun Zhang, Jingxiu Wang, and Nariaki Nitta ( beijing Astronomical Observatory, National Astronomical Observatories,chinese {2. of Sciences, beijing 100012.Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA 94304, USA) Lockheed Martin Solar and Astrophysics Laboratory Palo Alto CA 94304 USA

There are only a few observations published so far that show the initiation of a coronal mass ejection (CME) and illustrate the magnetic changes in the surface origin of a CME. Any attempt to connect a CME with its local solar activities is meaningful. In this paper we present a clear instance of a halo CME initiation. A careful analysis of magnetograms shows that the only obvious magnetic changes in the surface region of the CME is a magnetic flux cancellation underneath a quiescent filament. The early disturbance was seen as the slow upward motion in segments of the quiescent filament. Four hours later, the filament was accelerated to about 50 km s-1 and erupted. While a small part of the material in the filament was ejected into the upper corona, most of the mass was transported to a nearby region. About forty minutes later, the transported mass was also ejected partially to the upper corona. The eruption of the filament triggered a two-ribbon flare, with post-flare loops connecting the flare ribbons. A halo CME, which is inferred to be associated with the eruptive filament, was observed from LASCO/C2.and C3. The halo CME contained two CME events, each event corresponded to a partial mass ejection of the filament. We suggest that the magnetic reconnection at the lower atmosphere is responsible for the filament eruption and the halo CME.

关键词： Sun: filament - Sun: magnetic fields-Sun: coronal mass ejection

The Influence of Reasoning Capacity and Time Pressure on the Information Search Pattern of Career Decision Making

在线全文

学校读者我要写书评

暂无评论

The Influence of Reasoning Capacity and Time Pressure on the...

2.10 IEEE 2.d Symposium on Web Society

作者： Dawei Wang~(1,2., (1 School of Management,Graduate University of chinese academy of Sciences,{2.,china,100190) (2.School of Psychology,Shandong Normal UniversityJinan,Shandong,china,2.0014) Kan Shi~* (School of Management,Graduate University of chinese academy of Sciences,{2.,china,100190)

＜正＞This article used information board and the experimental material was stimulant career decision tasks aiming at the exploration of decision makers’ information search pattern at different level of time pressure（high time pressure ,low time pressure and no time pressure） and different level of reasoning capacity（high level of reasoning capacity and low level）.The results showed that（1） the main effect of time pressure was significant whereas that of reasoning capacity wasn ’t *** the interact effect of the two was not significant.（2. If time pressure existed,the subjects were inclined to attribute-based information search pattern. However,if there was no time pressure,the alternative- based information search pattern was usually used.

关键词：