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Journal of China University of Mining and Technology 2006年第3期16卷 349-352页

作者： WU Jian cao dai-yong Key Laboratory of Coal Resources Ministry of Education Beijing 100083 China

Sedimentary facies study is an important method in describing the property and distribution of reservoir. 3D geological modeling is a powerful tool in 3D characterization of geological bodies. By combining the sedimentary facies study with 3D geological modeling to generate 3D sedimentary facies model, the 3D geometry and distribution feature of sand bodies can be more accurately characterized, particularly in 3D view. In Liuchu oilfield of Jizhong depression, the Ed2IV formation was recognized as meandering river deposition facies and five sedimentary facies were identified, which include point bar sand, levee, channel margin, abandoned channel and floodplain. All the 24 sand body facies in Ed2IV were mapped and the 3D sedimentary facies model established based on 2D facies maps. The result shows that the 3D sedimentary facies model is well matched for the research result of sedimentary facies. Being an extension of traditional sedimentary study, the 3D sedimentary facies model can be used to describe the 3D geometry and distribution orders of a single sand body more reliably and more accurately.

关键词： sedimentary facies meandering river 3D model geostatistic simulation

Identification of Contamination Information of Vegetation in Coal Mines Based on Hyperspectral Remote Sensing Data

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Journal of China University of Mining and Technology 2005年第3期15卷 213-217页

作者： ZHANG Jie-lin cao dai-yong Key Laboratory of Coal Resources Ministry of Education China Universi~. of Mining ＆ Technology Beijing 100083 China Beijing Research Institute of Uranium Geology Beijing 100029 China

The development and application of the hyper-spectral remote sensing (HRS) in the environment investiga-tion and evaluation of coal mines have been discussed in detail. By using Hyperion HRS technology and field spectrummeasuring and integrating traditional geological method as well as laboratory chemical measurement, the absorptionspectrum features and the spectral variation rules of vegetation caused by coal mine waste piles were studied. Based onthe spectral modeling methods and Vegetation Red Edge Parameter (VREP), the diagnose spectra information andspectral variation parameter were extracted, and the mapping methods of VREP were researched. The spatial distribu-tions of contaminative vegetation have been quickly found *** study has provided technical supports for the envi-ronment investigation and pollution management of coal mines.

关键词： Hyper-spectral remote sensing coal mines contamination information vegetation red edge parameter

Ability of human umbilical cord mesenchymal stem cells to repair chemotherapy-induced premature ovarian failure

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World Journal of Stem Cells 2020年第4期12卷 277-287页

作者： Jian Shen dai cao Jing-Li Sun Department of Obstetrics and Gynecology General Hospital of Northern Theater Command(Heping Campus)Shenyang 110000Liaoning ProvinceChina

BACKGROUND Premature ovarian insufficiency(POI)and premature ovarian failure(POF)have become one of the major problems threatening women of childbearing *** have shown that stem cells transplanted from bone marrow,umbilical cord,peripheral blood and amniotic fluid can migrate and proliferate to the ovary,promote ovarian function repair,increase the number of follicles and granulosa cells at all levels of ovary,improve endocrine function,and can differentiate into oocytes in specific ovarian environment to restore fertility to some *** To study the ability of human umbilical cord mesenchymal stem cells(hUCMSCs)to repair ovarian injury after *** A total of 110 female BALB/c mice(aged 7-8 wk old)with body masses of 16.0-20.0 g were *** mice were fed until 12 wk of age,and cyclophosphamide was administered by intraperitoneal injection for 14 consecutive days to induce premature ovarian failure in ***-five mice with estrous cycle disorder were screened and randomly divided into 3 groups according to their body weight:model group,positive control group and hUCMSC group,and each group had 25 *** 25 mice were used as negative *** mice in the hUCMSC group were injected with hUCMSCs in the tail vein,and the mice in the positive control group were given an oestradiol valerate solution and a medroxyprogesterone acetate solution in the tail *** the 1^st,15^th,30^th,45^th,and 60^th days after intravenous administration,vaginal smears were made to monitor the estrous cycles of the *** ovaries were weighed,and pathological sections were made to observe the morphology of the follicles;blood samples were collected to monitor the concentration of sex hormones(oestradiol and follicle-stimulating hormone).RESULTS The estrous cycles of the model group mice were disrupted throughout the *** in the hUCMSC group and the positive control group resumed normal estrous *** ovarian weight of the model

关键词： Umbilical cord mesenchymal stem cells Premature ovarian failure Chemotherapy Repair Ovarian injury Endocrine function

Solidification microstructure and phase constitution of Fe-7.5%Mo-16.5%Si ternary quasiperitectic alloy

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Chinese Science Bulletin 2010年第16期55卷 1674-1678页

作者： LI Li LU XiaoYu cao ChongDe dai FuPing Department of Applied Physics Northwestern Polytechnical University Xi'an 710072 China

Solidification of Fe-7.5%Mo-16.5%Si ternary quasiperitectic alloy is investigated by using differential scanning calorimetry (DSC) and drop tube containerless processing *** primary phase is identified as R (Fe5Mo3Si2) and the quasiperitectic phases are τ1 (Fe5MoSi4) and *** the decrease of droplet diameter, the cooling rate and undercooling of the droplets in-crease *** experiment result indicates that the solidification microstructure is composed of remnant primary phase, qua-siperitectic phases and ternary eutectic when the droplet diameter exceeds 400 μm, whereas the ternary eutectic is suppressed when the droplet is smaller than 400 μm in diameter.

关键词：三元合金凝固微观组织硅合金 Fe 差示扫描量热法液滴直径宪法钼

Distribution of per-and polyfluoroalkyl substances in blood,serum,and urine of patients with liver cancer and associations with liver function biomarkers

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Journal of Environmental Sciences 2024年第5期139卷 418-427页

作者： cao dai Lin Peng Yanjie Li Zhendong Li Da Chen Fei Wang Nan Lin Department of Hepatobiliary Surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China School of Environment Guangdong Key Laboratory of Environmental Pollution and HealthJinan UniversityGuangzhou 510632China State Key Laboratory of Environmental and Biological Analysis Department of ChemistryHong Kong Baptist UniversityHong Kong 999077China South China Institute of Environmental Sciences MEEGuangzhou 510655China

Studies have shown that per-and polyfluoroalkyl substances(PFASs)may be hepatotoxic in animals or ***,data on clinical epidemiology are very *** this study,21PFASs were determined in patients with liver diseases,with the highest median concentrations detected in the serum sample(26.7 ng/mL),followed by blood(10.7 ng/mL)and urine(5.02 ng/mL).Higher total PFAS concentrations were found in hepatocellular carcinoma(HCC)patients compared to non-HCC patients,with significant discrepancies in serum and blood ***,significant correlations were also found among PFAS concentrations and age,gender,body mass index(BMI),and liver function biomarkers *** example,PFAS concentrations are significantly higher in males than in females;Several serum PFASs concentrations increase with age and BMI,while the serum perfluorohexane sulfonic acid(PFHxS)concentrations are negatively correlated with *** addition,multiple regression models adjusted for age,gender and BMI found that increased serum perfluorobutane sulfonic acid(PFBS),perfluoroheptane sulfonic acid(PFHpS)and perfluorohexylphosphonic acid(PFHxPA)conentrations are correlated with elevated alkaline phosphatase(ALP),aspartate aminotransferase(AST),and alpha-fetoprotein(AFP)(p<0.05).Our results provide epidemiological support for the future study on the potential clinical hepatotoxicity of PFAS.

关键词： Per-and polyfluoroalkyl substances(PFASs) Liver cancer Serum Blood Urine Liver function biomarkers

Subsidence History of the Eastern Depression in the North Yellow Sea Basin

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Journal of China University of Mining and Technology 2007年第1期17卷 90-95页

作者： cao dai-yong WANG Xin-guo ZHAN Wen-feng LI Wen-yong State Key Laboratory of Coal Resources and Safe Mining China University of Mining ＆ Technology Beijing 100083 China Guangzhou Marine Survey Guangzhou Guangdong 510075 China

Using a back-stripping method, our paper simulated the subsidence history of the eastern depression in the North Yellow Sea Basin. The subsidence history curve pattern and the subsidence chorisogram during every subsiding period were exposed. Combining with the regional geologic background and the distribution features of the subsiding centers in every period, a contrasting study of the pattern and the classical subsidence history curves shows the subsi- dence history is made up of Mesozoic (J3-K1) and Cenozoic (E2-Q) subsiding cycles. The two subsiding cycles are separated by the late Cretaceous and Paleocene (K2-E1) uplift denudation. Both subsiding cycles have the characteristics of an extension basin. The rapid subsidence during the late Jurassic and Eocene is equivalent to the initial subsiding phases in both cycles.. The slow subsidence of both, the early Cretaceous and Neogene, can be regarded as thermal sub-sidence phases .

关键词： the eastern depression subsidence history extension basin back-stripping method

Measurements of the Differential Elastic and Inelastic Scattering Cross Sections of ^(12)C

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Chinese journal of nuclear physics 1995年第2期17卷 171-173页

作者： Zhang Kun cao Jian-hua dai Yun-shen Wan dai-rong(Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610064) 四川大学原子核科学技术所四川成都

The differential elastic and inelastic scattering neutron cross sections of 12C atEn=14.7 MeV produced by the T（d,n）4He reaction were measured using an associatedparticle fast neutron TOF spectrometer at 15 angles ranging from 15° to 130°.Theflight path was 2.54 *** neutron detector consisting of an ST-451 liquid scintillatorwas massively shielded.

关键词： Elastic scattering Inelastic Scattering Differential cross section

Property(ω_1) and Single Valued Extension Property

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Journal of Mathematical Research and Exposition 2010年第6期30卷 1009-1014页

作者： Chen Hui SUN Xiao Hong cao Lei dai College of Mathematics and Information Science Shaanxi Normal UniversityShaanxi 710062P.R.China

In this note we study the property（ω1）,a variant of Weyl＇s theorem by means of the single valued extension property,and establish for a bounded linear operator defined on a Banach space the necessary and sufficient condition for which property（ω1） *** a consequence of the main result,the stability of property（ω1） is discussed.

关键词： property(ω1) single valued extension property.

A Knowledge Model System for Wheat Production Management

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Pedosphere 2007年第2期17卷 172-181页

作者： ZHU Yan cao Wei-Xing dai Ting-Bo TIAN Yong-Chao YAO Xia Hi-Tech Key Laboratory of Information Agriculture of Jiangsu Province Nanjing Agricultural University Nanjing 210095 （China）. Key Laboratory of Crop Growth Regulation of Ministry of Agriculture Nanjing Agricultural University Nanjing 210095 （China）

A knowledge model with temporal and spatial characteristics for the quantitative design of a cultural pattern in wheat production, using systems analysis and dynamic modeling techniques, was developed for wheat management, as a decision-making tool in digital farming. The fundamental relationships and algorithms of wheat growth indices and management criteria to cultivars, ecological environments, and production levels were derived from the existing literature and research data to establish a knowledge model system for quantitative wheat management using Visual C^＋＋. The system designed a cultural management plan for general management guidelines and crop regulation indices for timecourse control criteria during the wheat-growing period. The cultural management plan module included submodels to determine target grain yield and quality, cultivar choice, sowing date, population density, sowing rate, fertilization strategy, and water management, whereas the crop regulation indices module included submodels for suitable development stages, dynamic growth indices, source-sink indices, and nutrient indices. Ewluation of the knowledge model by design studies on the basis of data sets of different eco-sites, cultiwrs, and soil types indicated a favorable performance of the model system in recommending growth indices and management criteria under diverse conditions. Practical application of the knowledge model system in comparative field experiments produced yield gains of 2.4% to 16.5%. Thus, the presented knowledge model system overcame some of the difficulties of the traditional wheat management patterns and expert systems, and laid a foundation for facilitating the digitization of wheat management.

关键词： expert system knowledge model quantitative decision-making regulation index wheat

Ruptured azygos vein caused by blunt trauma on left chest

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Chinese Medical Journal 2012年第18期125卷 3355-3356页

作者： cao Jian-guo dai Ning-feng CHEN Chang-zhi Department of Cardiothoracic Surgery Cangnan County People'sHospital Affiliated Shanghai Renji Hospital Group Cangnan China Zhejiang 325804

Rupture of the azygos vein caused by blunt trauma is rare. According to the literature there are total of 21cases of azygos vein injury since 1978 although the actual occurrence number may be much higher.^1,2 Mostly, it is the result of traffic accidents. If the diagnosis and treatment is delayed, patients will be dying of bleeding and hemorrhagic shock. So far its mortality rate is about 40% for patients with ruptured azygos vein even if they underwent operation^3 We present a patient who had blunt trauma on his left chest, which caused right haemothorax due to ruptured azygos vein.

关键词： blunt trauma, ruptured azygos vein hemorrhagic shock