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Sequence-stratigraphic frameworks and their palaeogeographic patterns for the Permian Lopingian of the Dianqiangui Basin and its adjacent areas of Southwestern China

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Science China Earth Sciences 2007年第6期50卷 869-885页

作者： MEI MingXiang MA YongSheng DENG Jun CHU HanMin ZHENG KuanBing State Key Laboratory of Geological Processes and Mineral Resources China University of GeosciencesBeijing 100083China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China

The Permian Lopingian in the Dianqiangui Basin and its adjacent areas is marked by the coal measures of the Wuchiapingian and the carbonate strata of the Changhsingian stages. For the Lopingian of the Dianqiangui Basin and its adjacent areas,the diversity of sedimentary facies and the obviousness of facies change provide an advantaged condition on a study of sequence stratigraphy. Approximately,the Wuchiapingian stage constitutes a third-order sequence and the Changhsingian stage forms an-other. For the Wuchiapingian stage in the study area,coal-measures were developed on the attached platform and,in addition,a special coal-measure that is composed of both limestone beds and coal beds was also developed in the central part of some isolated platforms. Grain-bank grainstones and packstones were formed on the margin of the attached platform as well as in the windward part of iso-lated platforms. For the Changhsingian stage in the study area,open-platform limestones were formed on the attached platform,while sponge-reef limestones were developed both on the margin of the at-tached platform and on the isolated platforms. The Lopingian Series is a set of basin-facies muddy shales with interbeds of silicalites in the inter-platform basin,which appears a set of the large-thick coarse clastic strata of molasses covering direct the deep-water strata from the Devonian to the Per-mian Yangsingian in the Qinzhou-Fangcheng region in the southern part of the study area. All of these features indicate the complexity of temporal-spatial facies-changes. Sequence-stratigraphic frame-works could be established,which would illustrate two types of facies-changing surfaces and dia-chronisms in the stratigraphic records,based on the combination of both biostratigraphic and chronostratigraphic materials and the regularity reflected by temporal evolutionary succession of sediments as well as spatial distributional patterns of sedimentary facies. Ultimately,features of sedi-mentary succession

关键词： sequence-stratigraphic frameworks palaeogeographical patterns the Permian Lopingian the Dianqiangui Basin and its adjacent areas

Microbiotas and environments of the Nansha Islands and adjacent sea

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Chinese Science Bulletin 1997年第20期42卷 1729-1737页

作者： Chen, MH Cai, HM Tu, X Lu, LH Chinese Acad Sci S China Sea Inst Oceanol Guangzhou 510301 Peoples R China

IN the past 12 years, the Multidisciplinary Oceanographic Expedition Team to Nansha Islandsorganized by the Chinese Academy of Sciences has carried out many investigations and ob-tained a lot of scientific research results. In the present study, 177 surface sediments and 7core specimens were used for analyzing foraminifers, ostracods, radiolarians, bryozoans, gas-tropods, bivalves, diatoms, dinonagellates, sporopollen and calcareous nannoplankton, con-

关键词： Nansha Islands and adjacent sea micropaleontology paleoenvironmental change.

Distributional features of temperature and salinity in the southern Taiwan Strait and its adjacent sea areas in late summer, 1994

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Acta Oceanologica Sinica 1999年第2期18卷 237-246页

作者： Hu Jianyu Liang Hongxing and Zhang Xuebin 1. Institute of Subtropical Oceanography, Xiamen University, Xiamen 361005, China 2. Fujian Institute of Oceanology, Xiamen 361012, China (Received June 3, 1998 accepted August 9, 1998) Inst. of Subtropical Oceanography Xiamen University Xiamen 361005 China Fujian Institute of Oceanology Xiamen 361012 China

Based on the CTD data obtained in the southern Taiwan Strait and its adjacent areas in August and September of 1994, the distributional features of the temperature and salinity in the studied area have been analyzed in detail. The results are as follows: (1) There are two low temperature and high salinity regions in the nearshore area between Dongshan and Shantou and in the southeastern Taiwan Shoal, respectively, which may be caused by upwellings. (2) There exists a cold eddy in the northwestern sea area and a warm eddy with two high temperature cores in the eastern sea area of the Dongsha Islands, which are related to the anti-cyclonic turning of the seawater near the Dongsha Islands. (3) A westward high temperature and high salinity water tongue extends through the northern Luzon Strait and reaches the sea areas near the Dengsha Islands and southern Taiwan Strait.

关键词： Temperature salinity distributional feature late summer southern Taiwan Strait and its adjacent areas

Ant Colony System for a Fuzzy adjacent Multiple-Level Warehouse Layout Problem

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Journal of Beijing Institute of Technology 2006年第4期15卷 500-504页

作者：张强余英姿黎建强 School of Management and Economics Beijing Institute of Technology Beijing 100081 China Department of Information and Computation Science Nanchang Institute of Aeronautical Technology Nanchang 330063 China Department of Management Sciences City University of Hong Kong Hong Kong China

A warehouse layout problem where the warehouse has more than one level and both the distance from the cell to the receive/exit bay and demand of item types are fuzzy variables is proposed. The problem is to find a layout with the minimum transportation cost subject to adjacency and other constraints. A fuzzy expected value model is given and an ant colony system is designed to solve the problem. Computational results indicate the efficiency and effectiveness of the method.

关键词： warehouse layout problem ant colony system expected value of fuzzy variable adjacent multipie-level

Discussion on the dextral movement and its effect in continental China and adjacent areas since Cenozoic

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China Geology 2018年第4期1卷 522-539页

作者： Rui-zhao Qiu Stephen D.Ludington Su Zhou Yong-jie Tan Guang-sheng Yan Zhi-gang Liu Xiu-fa Chen Quan-long Zhu Lei Qiu Xiao-dong Ren Li-ke Zhao Development and Research Centcer China Geological SurveyBeijing 100037China U.S.Geological Survey MS 901345 Middlefield RoadMenlo ParkCA 94025USA China University of Geosciences (Beijing) Beijing 100083China China Geological Survey Beijing 100037China

Continental China has moved dextral Eastward since Cenozoic time,driven by the collision of the Indian with the Eurasian *** for this comes from landscape evolution,the distribution of earthquake epicenters,Cenozoic sedimentary and volcanic rocks,and the measurement of GPS velocity vectors,the distribntion of crustal stress,paleomagnetic data,and deep mantle structure,among *** movement commenced around 40 Ma,coupled with thickened lithosphere and widespread stress release along strikeslip faults that bound the continental Chinese *** of continued Northward subduction of the Indian plate,manifestation of the dextral movement has intensified since 25 ***-reaching effects include extensive strike-slip movement on the Tan-Lu fault in Eastern China,formation of the Dabie ultrahigh pressure metamorphic terrane,extensive thrust faults in East China,delamination and thickening of the lithosphere of South China,a possible tectonic doubling of the Middle-Lower Yangtze Valley metallogenic belt,and the formation of the Japan,Huanghai (East China),and South China Sea.

关键词： Dextral movement Effect Since Cenozoic Continental China and adjacent area

Radioactivity　and　Thermal　State　of　the　Lithosphere　in　the　Qinling　Orogenic　Belt　and　adjacent　Margins　of　North　China　and　Yangtze　Cratons：　Constraints　on　Interpretations　of　Geophysical　Profilings

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Continental Dynamics 1996年第1期 56+56-63页

作者： Gao Shan Zhang Benren and Zhao Zhidan (Department of Geochemistry, China University of Geosciences, Wuthan 430074,China)

ＲａｄｉｏａｃｔｉｖｉｔｙａｎｄＴｈｅｒｍａｌＳｔａｔｅｏｆｔｈｅＬｉｔｈｏｓｐｈｅｒｅｉｎｔｈｅＱｉｎｌｉｎｇＯｒｏｇｅｎｉｃＢｅｌｔａｎｄＡｄｊａｃｅｎｔＭａｒｇｉｎｓｏｆＮｏｒｔｈＣｈｉｎａａｎｄＹａｎｇｔｚｅ... 详细信息

ＲａｄｉｏａｃｔｉｖｉｔｙａｎｄＴｈｅｒｍａｌＳｔａｔｅｏｆｔｈｅＬｉｔｈｏｓｐｈｅｒｅｉｎｔｈｅＱｉｎｌｉｎｇＯｒｏｇｅｎｉｃＢｅｌｔａｎｄＡｄｊａｃｅｎｔＭａｒｇｉｎｓｏｆＮｏｒｔｈＣｈｉｎａａｎｄＹａｎｇｔｚｅＣｒａｔｏｎｓ：Ｃｏｎｓｔｒａｉｎ...

关键词： the State Lithosphere Thermal adjacent

The Downlink adjacent Interference for Low Earth Orbiting (LEO) Search and Rescue Satellites

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International Journal of Communications, Network and System Sciences 2010年第2期3卷 107-115页

作者： Shkelzen CAKAJ Mickey FITZMAURICE Jesse REICH Eric FOSTER 不详

NOAA (National Oceanic and Atmospheric Administration) - LEO environmental satellites provide continuous coverage of Earth, supplying high-resolution global meteorological, oceanic and space observation data. In addition, these satellites are part of the international COSPAS – SARSAT program, which aides search and rescue teams worldwide. The USA segment, referred to as SARSAT (Search and Rescue Satellite Aided Tracking) system, is designed to provide distress alert and location data to assist on search and rescue operations. SARSAT locates distress beacons (406MHz) activated at distress locations. The system calculates a location of the distress event using Doppler processing techniques. Processed data is continuously retransmitted through the SARSAT downlink to Local User Terminals (LUT) when satellites are in view. The downlink adjacent interference is expected when two satellites operate in close proximity and share the same frequency. The downlinks of all SARSAT LEO satellites use the same 1544.5 MHz frequency. In cases where the satellites are within the main lobe of the local user terminal antenna, transmissions from adjacent satellites act as interference to one-another, effectively decreasing the signal-to-noise ratio of the desired downlink. This can result in missed distress beacon bursts or no stored solutions received at the LUT, consequently no data is provided about a distress location. Analysis on interference prediction, impacts on system operation and recommendations for mitigating interference periods where the duration may be significant, are presented in this paper.

关键词： LEO LUT Beacon Doppler Satellite adjacent Interference

Cervical adjacent segment pathology following fusion:Is it due to fusion?

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World Journal of Orthopedics 2013年第3期4卷 112-113页

作者： Philip Rosenthal Kee D Kim Department of Neurological Surgery UC Davis Health SystemSacramentoCA 95817United States

adjacent segment pathology affects 25% of patients within ten years of anterior cervical diskectomy and fusion(ACDF). Laboratory studies demonstrate fused segments increase adjacent level stress including elevated intradiscal pressure and increased range of motion. Radiographic adjacent segment pathology(RASP) has been associated to ACDF in multiple statistically significant studies. Randomized controlled trials(RCTs) comparing anterior cervical discectomy and arthroplasty(ACDA) and ACDF have confirmed ACDF accelerates RASP. The question of greatest clinical interest is whether ACDA, artificial disc surgery, results in fewer adjacent level surgeries than ACDF. Current RCT follow up results reveal only non statistically significant trends favoring ACDA yet the post operative periods are only two to four years. Statistically significant increased RASP in ACDF patients however is already documented. The RCT patients' average ages are in the mid forties with an expected longevity of up to forty more years. Early statistically significant increased RASP in the ACDF patients supports our prediction that given sufficient follow up of ten or more years, fusion will lead to statistically significant higher rate of adjacent level surgery compared to artificial disc surgery.

关键词： Cervical Diskectomy Fusion Arthroplasty adjacent Degeneration

The Crust-mantle Structure and Seismic Risk in Tangyin Graben and Its adjacent Area

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Earthquake Research in China 1998年第4期12卷 66-76页

作者： Ren Qingfang, Zhang Xiankang, Zhang Chengke, Zhao Jinren, and Zhou Xuesong Research Center of Exploration Geophysics, CSB, Zhengzhou 450002, China

1-D and 2-D calculation and interpretation are carried out with the DSS data from the western section of Heze-Changzhi profile and the southern section of Zhengzhou-Jinan profile. 2-D velocity structure is determined in Tangyin graben and its adjacent area. The result shows that velocity structure of the crust and upper mantle is obviously different in vertical and lateral directions. Crustal thickness varies apparently in this area, and there are local low velocity blocks in the interior crust. The swelling M-discontinuity corresponds to Tangyin graben and Moho depth at the highest swelling position is 31 km. Toward the east, its depth gradually increases to 32 km in Xunxian swelling; toward the west, M-discontinuity becomes a steep zone at the piedmont uplift of Taihang Mountain and reaches 40 km at depth near Changzhi. Through analyzing the relationship between historical earthquakes and deep structure in North China, we infer that seismic risk exists in Tangyin graben and its adjacent area.

关键词： Tangyin graben and its adjacent area Crust/mantle structure Seismic risk.