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Characteristics of Coal Accumulation of Transform-Extensional Basins in Linear Fracture Zones: A Case Study of the Meihekou Basin

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Acta Geologica Sinica(English Edition) 1999年第1期73卷 104-110页

作者： ZHUANG Xinguo Institute of Sedimentary Basin, Faculty of Earth Resources china university of geosciences, wuhan, Hubei 43.074 china Univ Geosci Fac Earth Resources Inst Sedimentary Basin Wuhan 430074 Hubei Peoples R China

This paper discusses the characteristics of coal accumulation of transfor-extensional basins in linear fracture zones on the basis of an analysis of tectonic evolution and sequence stratigraphy in the Meihekou basin. Coal accumulation of the basin occurred mainly in the accelerated rifting period of the transtentional regime and in the late period of tectonic transformation of the transpressional regime. In the former period, swamps developed in shallow lakes. The thickness of coal seams was controlled by the activity of fault block. Thick coal was formed in a downfaulted trough. In the latter period, swamps developed in a braided fan delta plain. The coal seams are thin and have poor lateral continuity. The thickness of coal seams was controlled by the migration of water channels in the braided plain.

关键词： coal accumulation sequence stratigraphy tectonic evolution Meihekou basin

Interpretation of Aeromagnetic Anomalies of the Sulu Ultrahigh-Pressure(UHP) Metamorphic Belt,Eastern china

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地学前缘 2009年第S1期16卷 214-215页

作者： Ning Qiu,Qingsheng liu Institute of Geophysics and Geomatics,china university of geosciences(wuhan),wuhan 43.074,china.

The Sulu ultra-high pressure(UHP)metamorphic belt in Eastern china is well known as the eastern extension of the Qingling-Dabie orogenic belt formed by subduction and collision between the Sino-Korean and Yangtze *** main hole of the Chinese Continental Scientific Drilling(CCSD)project is located at the southern segment of the Sulu UHP metamorphic belt(34°25′N/118°40′E),about 17 km southwest of Donghai *** geophysical investigations using gravity,magnetic,deep

关键词： aeromagnetic ultrahigh-pressure(UHP) metamorphic belt Chinese Continental Scientific Drilling(CCSD) Sulu

Development of SPM Quantitative Micromorphology Analysis Software

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International Journal of Minerals,Metallurgy and Materials 1999年第2期13卷 136-138页

作者： Suozai Li Libing Liao(School of Materials Science and Engineering, china university of geosciences, Beijing 100083, china) School of Materials Science and Engineering China University of Geosciences Beijing 100083 China

Scanning Probe Microscope (SPM) has great advantages in quantitative micromorphology analysis because of its conveniencein obtaining micromorphology information of materials on nanometer or atomic scale under control of a computer. Based on an established SPM quantitative micromorphology analysis model, an SPM image analysis software Which can calculate both two- and three-dimensional micromorphology parameters is developed.

关键词： SPM quantitative micromorphology analysis software

Effect of SPM Scanning Range on the Micromorphology Parameters

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International Journal of Minerals,Metallurgy and Materials 1998年第1期12卷 36-38页

作者： Libing Liao Suozai Li (School of materials Science and engineering, china university of geosciences, Beijing 100083, china) School of Materials Science and Engineering China University of Geosciences Beijing 100083 China

The surface of a compact disk is analyzed by using SPM and the quantitative micromorphology analysissoftware SPMIAS developed by the author. Images at the same position but with different scanning ranges areobtained under the same experimental conditions. Micromorphology parameters are calculated and compared, andthe relationship between the changing of the scanning range and the changing of micromorphology parameters issummarized.

关键词： Scanning Probe Microscope(SPM) micromorphology micromorphology parameters

china stroke surveillance report 2021

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Military Medical Research 2024年第3期11卷 374-399页

作者： Wen-Jun Tu Long-De Wang 无 Department of Neurosurgery Beijing Tiantan HospitalCapital Medical UniversityBeijing 100070China School of Public Health Peking UniversityBeijing 100191China Special Writing Group of china Stroke Surveillance Report

Since 2015,stroke has become the leading cause of death and disability in china,posing a significant threat to the health of its citizens as a major chronic non-communicable *** to the china Stroke High-risk Population Screening and Intervention Program,an estimated 17.8 million[95%confidence interval(CI)17.6.18.0million]adults in china had experienced a stroke in 2020,with 3.4 million(95%CI 3.3–3.5 million)experiencing their first-ever stroke and another 2.3 million(95%CI 2.2–2.4 million)dying as a ***,approximately 12.5%(95%CI 12.4%–12.5%)of stroke survivors were left disabled,as defined by a modified Rankin Scale score greater than 1,equating to 2.2 million(95%CI 2.1–2.2 million)stroke-related disabilities in *** the population ages and the prevalence of risk factors like diabetes,hypertension,and hyperlipidemia continues to rise and remains poorly controlled,the burden of stroke in china is also increasing.A large national epidemiological survey initiated by the china Hypertension League in 2017 showed that the prevalence of hypertension was 24.7%;the awareness,treatment,and control rates in hypertensive patients were:6..1%,42.5%,and 25.4%,respectively.A nationally representative sample of the Chinese mainland population showed that the weighted prevalence of total diabetes diagnosed by the American Diabetes Association criteria was 12.8%,suggesting there are 120 million adults with diabetes in china,and the awareness,treatment,and control rates in diabetic patients were:43.3%,49.0%,and 49.4%,***“Sixth National Health Service Statistical Survey Report in 2018”showed that the proportion of the obese population in china was 37.4%,an increase of 7.2 points from *** from 1599 hospitals in the Hospital Quality Monitoring System and Bigdata Observatory Platform for Stroke of china(BOSC)showed that a total of 3,418,432 stroke cases[mean age±standard error(SE)was(6..700±0.006.years,and 59.1%were male]were admitted dur

关键词： Stroke Epidemiological characteristics Treatment Prognosis china

Origin,evolution and extinction of Cathaysia flora

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Chinese Science Bulletin 1999年第2期44卷 100-108页

作者： SUN Keqinchina university of geosciences, Beijing 100083, china china university of geosciences Beijing China

Recent research results showed that the Cathaysia flora originated and developed from the global uniform Lepidodendropsis flora of the Early Carboniferous, which had already become an independent flora in the early Late Carboniferous (Namurian B to C). The center of origin of the Cathaysia flora is restricted to the North china Plate. On the basis of the successional characteristics of the Cathaysia flora in different geological ages, it may be divided into seven evolutionary stages. The evolutionary trend of the Cathaysia flora, as a whole, was characterized by the gradual increase of the typical Cathaysian elements in the sequence from the early Late Carboniferous to the early Late Permian, which began to decline during the late Late Permian. The climatic differentiation, tectonic movement,oceanic circulation, palaeogeographical environment, extraterrestrial event and plant evolution caused the mass extinction of the Cathaysia flora on a large scale by the end of the Permian.

关键词： Asia Cathaysia flora origin evolution extinction Late Carboniferous Permian.

Oxfordian (Jurassic) mayaitid (ammonite) dispersal in the Tibetan Himalaya as the first signal of the establishment of the Indo-Austrai subrealm

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Progress in Natural Science:Materials International 2003年第4期13卷 44-49页

作者： YIN Jiarun(china university of geosciences, Beijing 100083, china) china Univ Geosci Beijing 100083 Peoples R China

New fossil collections in the Lanongla area, Tibetan Himalaya enables the establishment of the Upper Jurassic ammonoidsuccession. Middle Oxfordian ammonite-fauna is characterized by endemic epimayaittds with a marine deepening event, suggesling a high stand of sea Ievel in the Tibetan Himalaya. Distribution of mayaitids around the Eastern Gondwana can be regarded as the first signal of the Indo-AustraI Subrealm that was progressively established during the Late Jurassic and Early Cretaceous times.

关键词： Jurassic Oxfordian ammonites Tibetan Himalaya Indo-Austral Subrealm.

Paleogeographical Distribution and Stratigraphical Range of the Lower Triassic Claraia,Pseudoclaraia and Eumorphotis(Bivalvia)

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Journal of Earth Science 1990年第1期9卷 102-114页

作者： Yin HongfuDepartment of Geology , china university of geosciences , wuhan 43.074

On the basis of a worldwide review of Claraia , Pseudoclaraia and Eumorphotis , especially their important species , two range zones are recognized:the Pseudoclaraia wangi range zone —— Upper Griesbachian——and the Claraia stachei- C. aurita - Eumorphotis multiformis acme zone——Upper Griesbachian to Lower Smithian This result revises both the tradition-al Chinese concept regarding these fossils as limited in Lower Scythian and the viewpoint of some Eurasian researchers who hold Eumorphotis multiformis to be Upper Scythian .The paleogeographical distribution of the three genera is controlled primarily by temperature (latitude) and secondarily by physiographic separations .Distribution of these fossils is subdivided into four realms and five provinces . The Eastern Asia province of the Tethys realm is suggested as the source area of these fossils .The striking contrast between the composition of the species along the southern and northern margins of the Tethys , together with other distributional characters ,supports the plate tectonic theory .

关键词： Lower Triassic ,bivalves paleobiogeography ,stratigraphy .

Solving A Kind of High Complexity Multi-Objective Problems by A Fast Algorithm

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wuhan university Journal of Natural Sciences 2003年第S1期8卷 183-188页

作者： Zeng San-you, Ding Li-xin, Kang Li-shanDepartment of Computer Science,china university of geosciences, wuhan 43.074, Hubei, china Department of Computer Science, Zhuzhou Institute of Technology , Zhuzhou 412008, Hunan, china State Key Laboratory of Software Engineering, {6. university, {6. 430072, Hubei, china china university of geosciences Department of Computer Science Wuhan Hubei China (GRID:grid.162107.3) (ISNI:***) Zhuzhou Institute of Technology Department of Computer Science Zhuzhou Hunan China (GRID:grid.162107.3) china university of geosciences Department of Computer Science Wuhan Hubei China (GRID:grid.162107.3) (ISNI:***) wuhan university State Key Laboratory of Software Engineering Wuhan Hubei China (GRID:grid.49470.3e) (ISNI:***)

A fast algorithm is proposed to solve a kind of high complexity multi-objective problems in this paper. It takes advantages of both the orthogonal design method to search evenly, and the statistical optimal method to speed up the computation. It is very suitable for solving high complexity problems, and quickly yields solutions which converge to the Pareto-optimal set with high precision and uniform distribution. Some complicated multi-objective problems are solved by the algorithm and the results show that the algorithm is not only fast but also superior to other MOGAS and MOEAs, such as the currently efficient algorithm SPEA, in terms of the precision, quantity and distribution of solutions.

关键词： evolutionary algorithms orthogonal design multi-objective optimization Pareto-optimal set