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A semi-implicit semi-Lagrangian global nonhydrostatic model and the polar discretization scheme

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Science china Earth Sciences 2007年第12期50卷 1885-1891页

作者： YANG XueSheng1,CHEN JiaBin2.HU JiangLin1,CHEN DeHui1,SHEN XueShun1,ZHANG HongLiang1 1 State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,china 2.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,institute of Atmospheric Physics,Beijing 10002.,china State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences Beijing China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Beijing China

The Global/Regional Assimilation and PrEdiction System(GRAPES) is a newly developed global non-hydrostatic numerical prediction model,which will become the next generation medium-range opera-tional model at china Meteorological Administration(CMA).The dynamic framework of GRAPES is featuring with fully compressible equations,nonhydrostatic or hydrostatic optionally,two-level time semi-Lagrangian and semi-implicit time integration,Charney-Phillips vertical staggering,and complex three-dimensional pre-conditioned Helmholtz solver,*** the singularity of horizontal momentum equations at the poles,the polar discretization schemes are described,which include adoption of Arakawa C horizontal grid with ν at poles,incorporation of polar filtering to maintain the computational stability,the correction to Helmholtz equation near the poles,as well as the treatment of semi-Lagrangian interpolation to improve the departure point accuracy,*** balanced flow tests validate the rationality of the treatment of semi-Lagrangian departure point calculation and the polar discretization during long time *** and Suarez tests show that the conservation proper-ties of GRAPES model are quite good.

关键词： nonhydrostatic, global model, semi-implicit, semi-Lagrangian, polar discretization, conservation

Effects of TCMP-1 on the changes of platelet endothelial cell adhesion molecule-1 expression in acute edematous pancreatitis

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Hepatobiliary & Pancreatic Diseases International 2004年第2期3卷 311-315页

作者： Hong-Kai Gao, Zong-Guang Zhou, Tao He, You-Qin Chen, Fang-Hai Han and Cun Wang chengdu, chinaDepartment of General Surgery & Division of Diges- tive Surgery, West china Hospital, Sichuan University, chengdu 610041 , china Department of General Surgery & Division of Digestive Surgery West China Hospital Sichuan University Chengdu 610041 China. zhou767@***

BACKGROUND: Traditional Chinese medicine is a potent agent in the management of clinical and experimental acute pancreatitis (AP), but the molecular mechanism of its the- rapeutic action is unclear. Numerous experimental and clinical studies have shown that platelet endothelial cell ad- hesion molecule-1 (PECAM-1) is pivotal to leukocyte re- cruitment, which results in microcirculatory injury during inflammation, but its role in acute pancreatitis is poorly un- derstood. We investigated the effects of a compound of tra- ditional Chinese medicine pancreatitis-1 (TCMP-1) on the changes of platelet endothelial cell adhesion molecule-1 (PECAM-1) expression on polymorphonuclear leukocytes (PMNs) in acute edematous pancreatitis (AEP). METHODS: The model of acute pancreatitis was estab- lished by subcutaneous injection of caerulein, and TCMP-1 treated groups were given TCMP-1 by catheterization from mouth to stomach (2. ml/kg) immediately after first time subcutaneous injection of caerulein. The changes of expres- sion of PECAM-1 on leukocytes from the blood of the splenic vein and inferior vena cava were determined by flow cytometry. RESULTS: In the AEP group, expression of PECAM-1 on PMNs was not significantly different between pancreatic microcirculation and systemic circulation at AEP2. and AEP4h time point. Then from AEP4h time point to AEP8h time point, expression of PECAM-1 was up-regulated in systemic circulation while it was down-regulated in pancre- atic microcirculation and was significantly different be- tween pancreatic microcirculation and systemic circulation at AEP8h time point (P<0.05). In the TCMP-1 treated group, compared with the AEP group, expression of PE-CAM-1 on PMNs decreased in different levels between pan- creatic microcirculation and systemic circulation and was of significant difference at AEP8h time point (P <0.05). CONCLUSION: Inhibition of PECAM-1 expression on PMNs may prevent PMNs from transmigration through the endo- thelium and may be on

关键词： acute pancreatitis platelet endothelial cell adhesion molecule-1 Chinese medicine

Research Hot Spots of Black Peanut

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Asian Agricultural Research 2012年第7期4卷 89-92页

作者： YE Chong 1 ,ZHANG Yong-hong1,HUANG Ying-guo1,REN Yong-kuan1,CAI Shi-zhen2.1.Library of Sichuan Agricultural University,chengdu 611130,china 2.College of Landscape Architecture,Sichuan Agricultural University, chengdu 611130,china

Taking the research papers on black peanut in National Knowledge Infrastructure(CNKI)as data sources,we determine the research hot spots on black peanut using word frequency analysis,and analyze the main research directions that change over the *** results show that the relevant researches on black peanut are mainly concentrated in six themes(study of varieties,physiological property,cultivation management,development prospects,relationship with agriculture,and molecular level);varieties,physiology,cultivation and other aspects are the focus of current research hot spots;the researches on selection and breeding of variety and various physiological and ecological mechanisms,still need a breakthrough.

关键词： Black peanut Word frequency analysis Research hot

DEEP SEISMIC SOUNDING EVIDENCE FOR TECTONIC INTERACTION BETWEEN TARIM AND WEST KUNLUN MT

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地学前缘 2000年第S1期7卷 221-222页

作者： Li Qiusheng 1,Lu Deyuan 1,Gao Rui 1,Li Jingwei 2.Fan Jingyi 2.Zhang Zhiying 2.Liu wen 2.(1 Lithosphere Research Center, Chinese Academy of Geological Sciences, Beijing 100037,china 2.562.institute, Chinese Academy of Geological Sciences, Hebei

The Tarim basin, located in the northern margin of Tibet, plays a key role in comprehending Tibetan plateau rapid uplift process. Focuses have been on the contribution of basin block to create high mountain (e.g.,Chen and Molnar,1977, Molnar et al.,1993, Ph. Matte, Tapponnier et al.,1996) since 1970. The models, which mainly depend on result of geological survey and other geophysical observation in the region excepted Deep Seismic Sounding, remained unsure because of blank(or absence ) of DSS data until our experiment was performed. How Tarim and west Kunlun to contact in depth ? What different is in crust structure between Tarim and west Kunlun Mt.? This is what we will reply to in our *** finished the program in 1997. A total of 12. set seismograms (with 3\|component sensors) and 18000kg (AT and TNT) dynamos were used for the DSS field project. 6 shot in Tarim basin and 1 shot in west Kunlun Mt. (Quanshuigou) had been shoot successfully. One shot (Pishan shot) is used as fan\|shape observation (offset is from 150km to 2.0km) in 6 shots located in Tarim basin. The survey line is along Hotan river across the Tarim basin from the north to the south. In particular, we carried 2. set seismic recorders to Kunlun Mt. to make a short line about 60 km as the southern tendency of our line. The seismic recorders were placed in an interval of 3km from one stations to the next and covered a distance of more than 300km. The stations have to be moved their location per 2.|shotting to form a meeting system or a tracing system (layout). Fig.1 showed our survey line and location of shot as well as recorder stations. Finally we gained 62. cassettes with original seismic record (include cassettes of shooting time recorder et al.). After data process total 1147 quite high\|quality three\|component digital records have been used to analyze. Here, only results of analyzing P wave data is given.

关键词： seismic evidence tectonic interaction Tarim West Kunlun Mt.

超细Mo-Co-K催化剂的制备及其选区电子衍射表征

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燃料化学学报 2001年第Z1期29卷 154-156页

作者：张业孙予罕钟炳太原理工大学化学工程与技术学院山西太原030024 中国科学院山西煤炭化学研究所煤转化国家重点实验室山西太原030001

采用类凝胶超临界流体干燥法制备了超细Mo Co K催化剂 ,并运用TEM和选区电子衍射技术对制得的催化剂进行了表征。结果表明 ,制得的催化剂由属于超细粒子范畴的片状微晶和球状小颗粒组成 ,进一步经选区电子衍射技术分析 ,前者归属为MoO3... 详细信息

采用类凝胶超临界流体干燥法制备了超细Mo Co K催化剂 ,并运用TEM和选区电子衍射技术对制得的催化剂进行了表征。结果表明 ,制得的催化剂由属于超细粒子范畴的片状微晶和球状小颗粒组成 ,进一步经选区电子衍射技术分析 ,前者归属为MoO3 物相 ,后者归属为CoMoO4

关键词： Mo-Co-K催化剂超细粒子 TEM 选区电子衍射

Deformation Control of the 2.0 m High Hongjiadu Concrete Faced Rockfill Dam

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Deformation Control of the 200 m High Hongjiadu Concrete Fac...

第一届堆石坝国际研讨会

作者： Yang Zeyan~1 Jiang Guocheng~2.1.Hydrochina Corporation 2.china {2. of Water resources and Hydropower Research Beijing 100014 china

＜正＞Focus on the problems of CFRD with dam height around 2.0 m,combining with the characteristics of Hongjiadu project,the study on deformation properties and deformation control technology of high CFRD has been carried *** paper discussed deformation properties of 2.0 m high CFRD,with deformation control conducted in terms of the selection of materials,dam body zoning and filling construction,proposed the quantitative index of rockfill pre-settlement and integrated technology of deformation control on improvement of rockfill compaction,reshaping of steep slope inside the dam,setting high modulus zone and overall balanced rise of construction *** measures was applied in Hongjiadu CFRD and achieved good effects of dam deformation control,no structural cracks on face slab and the leakage is small.

关键词： Hongjiadu Hydropower Station high concrete faced rockfill dam deformation control technology

来源： cnki会议评论

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对苎麻厌氧微生物脱胶的研究

四川大学学报（自然科学版） 2003年第3期40卷 561-564页

作者：胡国全邓宇张辉林世平赵一章徐恒四川大学公共卫生学院成都610064 农业部沼气科学研究所成都610041 四川大学生命科学院成都610064

研究了一种生物脱胶新方法厌氧微生物法.作者从麻厂污泥和沼气池的污泥中优选出8株脱胶性能较好的杆菌,测定其代谢特性并对有效菌株进行了组合,4个组合的脱胶率为33.6%～38.98%.

关键词：茎麻厌氧微生物脱胶

集成“3S”技术的森林防火决策支持系统研究

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系统工程理论与实践 2004年第7期24卷 88-93页

作者：万鲁河李一军臧淑英哈尔滨工业大学管理学院黑龙江哈尔滨150006 哈尔滨师范大学地理系黑龙江哈尔滨150080

　从数据库设计、火险等级预测、火灾损失评估、空间分析、信息提取等功能模块方面,分析了基于地理信息系统(GIS)、全球定位系统(GPS)和遥感(RS)技术的森林防火决策支持系统的结构和开发环境,系统采用组件式GIS技术,成功地实现了3S与林... 详细信息

　从数据库设计、火险等级预测、火灾损失评估、空间分析、信息提取等功能模块方面,分析了基于地理信息系统(GIS)、全球定位系统(GPS)和遥感(RS)技术的森林防火决策支持系统的结构和开发环境,系统采用组件式GIS技术,成功地实现了3S与林火损失评估模型、林火预测模型的无缝集成.文章还探索地把粗集理论应用在林火等级预测中.该系统具有数据管理、更新、互查询、显示、输出和模型分析等功能,为森林防火管理提供及时的、可靠的信息支持.

关键词：地理信息系统全球定位系统粗集组件式GIS 森林防火

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水文序列分形维数估计的小波方法

四川大学学报（工程科学版） 2005年第1期37卷 1-4页

作者：王文圣向红莲赵东四川大学水电学院长江上游水文水资源勘测局重庆400014

根据小波多分辨率分析和水文序列的统计自相似性,提出了水文序列分形维数的小波估计方法,给出了其计算步骤。运用实际月径流序列的统计分析,探讨了小波分维估计法的影响因素和稳定性,指出紧支撑的Db4、Db6正交小波效果最稳定。最后运用... 详细信息

根据小波多分辨率分析和水文序列的统计自相似性,提出了水文序列分形维数的小波估计方法,给出了其计算步骤。运用实际月径流序列的统计分析,探讨了小波分维估计法的影响因素和稳定性,指出紧支撑的Db4、Db6正交小波效果最稳定。最后运用小波方法估计黄河三门峡站年径流和长江屏山站日资料的分维值。研究表明,小波分维估计法稳健,计算成果可靠。

关键词：水文序列分维小波分析统计自相似性