检索结果-南通市图书馆

A Statistical Study on Seismo-Ionospheric Anomalies of the Total Electron Content for the Period of 56 M≥6.0 Earthquakes Occurring in China During 1998—2012

在线全文

学校读者我要写书评

暂无评论

空间科学学报 2013年第3期33卷 258-269页

作者： liu j y Chen C H Tsai H F Le H Institute of Space Science National Central University Center for Space and Remote Sensing Research National Central University Department of Earth Science National Cheng Kung University GPS Science and Application Research Center National Central University Key Laboratory of Ionospheric Environment Institute of Geology and GeophysicsChinese Academy of Sciences

This paper reports statistical results of Seismo-Ionospheric Anomalies(SIAs) of the Total Electron Content(TEC) in the Global Ionosphere Map(GIM) associated with 56 M≥6.0 earthquakes in China during 1998—*** detect SIA,a quartile-based(***-based) process is *** anomalies for the period of earthquakes without being led by magnetic storms about 10 days are further isolated and examined to confirm the SIP *** show that SIA is the TEC significantly decrease in the afternoon period 2—9 days before the earthquakes in China,which is in a good agreement with the SIA appearing before the 12 May 2008 M 8.0 Wenchuan earthquake.

关键词：电离层异常地震发生总电子含量中国统计 SIAS TEC GIM

A COMPUTERIZED SySTEM ON KINETIC ANALySIS AND EVALUATION OF GAS/SOLID REACTIONS

在线全文

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 2003年第6期16卷 495-506页

作者： j.H. liu, j. y. Zhang and S.K. WeiSchool of Metallurgical and Ecological Engineering, University of Science & Technology Beijing, Beijing 100083, China School of Metallurgical and Ecological Engineering University of Science & Technology Beijing

The present paper presents the structure, features and functions of a computerized system on kinetic analysis and evaluation of gas/solid reactions, KinPreGSR. Kin-PreGSR is a menu driven system, can be operated with MS Windows as workbench in a PC computer. It has been developed using visual C++ with FoxPro hybrid coding technique.KinPreGSR combines the characteristics of gas/solid reactions with the kinetic models as well as mass and heat transfer equations. The database files were established for the apparent activation energies of some reduction and decomposition reactions to allow the prediction of the reaction kinetics to some extents. Outputs can be displayed using graphical or numerical forms. Examples regarding the oxide reduction and carbonate decomposition under isothermal conditions are given to show those functions.

关键词： gas/solid reaction kinetics computer system evaluation anal-ysis

ON A NEW GENUS AND TWO NEW SPECIES OF SOLENOCERID SHRIMPS(CRUSTACEA,PENAEOIDES)FROM SOUTH CHINA SEA

在线全文

学校读者我要写书评

暂无评论

Chinese journal of Oceanology and Limnology 1983年第2期1卷 171-176页

作者： liu Ruiyu j.y.liu (Institute of Oceanology,Academia Sinica)Zhong Zhenru (South China Sea Institute of Fisheries) 1. Institute of Oceanology Academia Sinica Qingdao China2. South China Sea Institute of Fisheries China

In the course of studying Chinese Penaeoid fauna,the authors have found two newspecies of Solenocerid shrimps from the northern part of the South China *** ofthem is named Hadropenaeus spinicaudatus ***.,and the other belongs to a new genus,Crassipenaeus *** established to accommodate it——*** *** thepresent paper descriptions of the new genus and species are *** type materials are deposited in the South China Sea Institute of Fisheries(Guang-

关键词： ON A NEW GENUS AND TWO NEW SPECIES OF SOLENOCERID SHRIMPS than view

ON A NEW GENUS OF MySIDACEA, PARALEPTOMySIS GEN. NOV. FROM THE SOUTH CHINA SEA

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

海洋与湖沼 1983年第3期 208-210页

作者： liu Ruiyu (j.y. liu) Wang Shaowu Institute of Oceanology, Academia Sinica

Among the specimens of Leptomysim (Crustacea, Mysidacea) collected from the northern part of the South China Sea by the Institute of Oceanology, Academia Siniea, Leptomysis xenops Tattersall and a closely related form were found by the authors. While studying on the morphological characteristics of these two species and their allies in the Tribe Leptomysini, we found that there are two natural groups of species previously ascribed to the genus Leptomysis G. O. Sars. The first group includes the type species of the genus and other 8 known species, viz. Leptomysis gracilis (G. O. Sars. 1864), L. lingvura (G. O. Sars, 1866), L. sardica G. O. Sars, 1877, L. mediterranea G O. Sars, 1877, L. capensis Illig, 1906. L. megalops Zimmer, 1915, L. australiensis Tattersall, 1927. L. peresi Bacescu, 1966, and L. burgii Bacescu, 1966, of which the cornea of the compound eye is normal——with numerous small facelets of equal size, the telson is usually armed with 2 or 3 pairs of larger apical spines; while in species of the second group, in which L. apiops apgops G. O. Sars, 1877, L. apiops banyulensis Bacescu, 1966, L. xenops Tattersall. 1922 and the new species described in this paper are included, the cornea consists of two parts, the anterior part with small and normal faeelets, but of the posterior part, the facelets are very unique, being larger and much elong ted to form a "bauquet"-shaped process. These differences showed that the two groups are heterogenous and belongs actually to two distinct genera. In order to receive the last 4 forms, a new genus, Paraleptomysis gen. nov. is established, and an account of the new genus and Chinese species is given in this paper. The type materials of the new species, P. sinensis sp. nov. are kept in the Institute of Oceanology, Academia Sinica (Qingdao).

关键词： FROM THE SOUTH CHINA SEA ON A NEW GENUS OF MySIDACEA PARALEPTOMySIS GEN NOV

Optimal design of high pressure hydrogen storage vessel using a modified genetic algorithm

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Optimal design of high pressure hydrogen storage vessel usin...

第九届全国氢能学术会议

作者： P.F.liu,j.y.Zheng,H.GChen Zhejiang University,China

Currently,the lightweight high pressure hydrogen storage vessel which serves as the hydrogen energy supply plays an important role in areas of the fuel cell *** this research,the optimal design which aims to reach the minimum weight of vessel under the burst pressure constraint is performed using genetic algorithm in the biologic evolution theory and finite element *** genetic algorithm introduces the thought of simulation

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

管推進工程之物理模型試驗與數值分析

岩石力学与工程学报 2004年第z2期23卷 4993-4998页

作者：壽克堅張芳維劉耀鈞陳盈良中興大學土木工程學系水土保持局第二工程所

以物理模型試驗及三維數值分析進行管推進工程研究,試驗方面以管推進物理模型試驗機模擬開挖面支撐壓力過大或不足對地表穩定性的影響,並於推進過程監測地表變位及土壓力變化;數值方面先以有限元素法程式ABAQUS模擬物理模型試驗之行為,... 详细信息

以物理模型試驗及三維數值分析進行管推進工程研究,試驗方面以管推進物理模型試驗機模擬開挖面支撐壓力過大或不足對地表穩定性的影響,並於推進過程監測地表變位及土壓力變化;數值方面先以有限元素法程式ABAQUS模擬物理模型試驗之行為,將數值分析與模型試驗結果相互驗證,以檢討數值分析依據之Leca(1990年)淺屑隧道開挖面穩定理論及土壤組成律ExtendedDrucker-PragerModels。驗證完成後,進一步以數值方法模擬現埸破除鏡面常發生之土體坍落行為及探求其鬆動範圍。

关键词：數值分析,管推進工程,物理模型

Cluster observations of magnetic field disturbances caused by FACs in the mid-altitude cusps

在线全文

学校读者我要写书评

暂无评论

Cluster observations of magnetic field disturbances caused b...

动脉瘤性蛛网膜下腔出血的老年患者预后影响因素研究进展

第十一届全国日地空间物理学术讨论会

作者： Q.-H. Zhang,R.-y liu j.-y Huang,y-H. liu, Z.-H. Xu (Polar Research Institute of China, Shanghai, China 200136) (School of Science, Xidian University, Xi''an 710071)

＜正＞Data from the four Cluster spacecraft during the mid-altitude cusp crossings on 10 September 2002 are presented. The encounters occur under conditions of weak and steady southward Interplanetary Magnetic Field （IMF）. The data show that there are the field-aligned currents （FACs） in the cusp causing large magnetic field disturbances. The boundary structures of the cusps are characterized by the FACs interfaces. A method for calculating the velocities of the interface based on multi-point measurements of spacecraft are introduced. Results show that the interfaces are roughly parallel to magnetic field lines, and their velocities are almost dawnward. The velocities have small values with respect to satellite’s velocity in the cusp crossings.

关键词： cusp IMF FACs boundary structure Cluster.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

中华老年医学杂志 2017年第10期36卷 1147-1150页

作者：刘洋靳景云刘秀孙圣凯王志宏上海市第四人民医院神经内科 200000 武警后勤学院附属医院科研科天津300000 西青医院老年病科天津300000

动脉瘤性蛛网膜下腔出血（aSAH）是一种严重危害人类健康的脑血管事件，具有高发病率、高致残率、高病死率和高复发率等特点。近年来，随着世界各国人口老龄化进程加剧，特别是老年aSAH患者预后状况，引起了学者们的广泛关注，因此，寻... 详细信息

动脉瘤性蛛网膜下腔出血（aSAH）是一种严重危害人类健康的脑血管事件，具有高发病率、高致残率、高病死率和高复发率等特点。近年来，随着世界各国人口老龄化进程加剧，特别是老年aSAH患者预后状况，引起了学者们的广泛关注，因此，寻找影响老年aSAH预后的危险因素具有重要意义。本文主要就近期关于老年aSAH患者预后相关因素及遗传学最新进展作一综述。

关键词：蛛网膜下腔出血预后危险因素

First Report of Penicillium polonicum Causing Blue Mold on Stored Polygonatum cyrtonema in China

在线全文

学校读者我要写书评

暂无评论

First Report of Penicillium polonicum Causing Blue Mold on S...