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Hydrothermal-sedimentary dolomite—A case from the Middle Permian in eastern Junggar Basin,China

Journal of Palaeogeography 2020年第4期9卷 415-437页

作者： Shuai Zhang Yi-Qun Liu Hong Li Xin Jiao ding-Wu zhou State Key Laboratory of Continental Dynamics Northwest UniversityXi'an 710069Shaanxi ProvinceChina Department of Geology Northwest UniversityXi'an 710069Shaanxi ProvinceChina Key Laboratory of Alpine Ecology Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

The Middle Permian Lucaogou Formation in the Jimusar Sag,eastern Junggar Basin,NW China,was deposited in a salt lake within an intracontinental rift basin with intense hydrothermal ***-sedimentary dolomite in the form of three types of dolostones,namely,analcime-feldspar dolostone(AFD),silicic dolostone(SD)and buddingtonite-albite dolostone(BAD),related to syn-sedimentary hydrothermal activity at lake bottom was *** characteristics and formation mechanism of the dolomite were studied based on micron-scale petrographic and isotopic geochemical *** syn-depositional formation of these dolostones was indicated by their rock-mineral features and syn-sedimentary deformation *** dolomite was composed of relatively poorly ordered proto-dolomite crystals with micron-sized spherical or sub-spherical morphology and coexisted with hydrothermal minerals,including analcime,buddingtonite,albite and *** clasts were replaced by the dolomite,indicating high-temperature conditions during *** remarkably low strontium isotopic compositions of the dolostones(87Sr/86Sr with an average of 0.705687)indicated that mantle-derived materials might have involved in the ore-forming *** dolostones had positiveδ13CPDB values(with an average of 6.94‰)and negativeδ18OPDB values(with an average of-8.12‰).Based on theδ18OPDB values,the formation temperatures of the dolomite were at least^25ºC higher than those of the penecontemporaneous dolomite in the Lucaogou Formation in the study *** is concluded that the dolomite precipitated from hydrothermal fluid erupting at the lake *** possible genetic models are *** suggest that the hydrothermal-sedimentary dolomite is an important genetic type,and this study may help increase the awareness of this understudied type of dolomite.

关键词： Dolomite genesis Hydrothermal sedimentary dolomite Permian Lucaogou Formation Jimusar Sag Junggar Basin

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Modelling of low-temperature exhumation rate in Dabie Mountain based on (U-Th)/He and fission-track thermochronological data

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Science China Earth Sciences 2006年第10期49卷 1009-1019页

作者： ding Ruxin zhou Zuyi XU Changhai LIU Yuzhu CHENG Hao XU Fei State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China State Key Laboratory of Marine GeologyTongji UniversityShanghai 200092China State Key Laboratory of Marine GeologyTongji UniversityShanghai 200092China State Key Laboratory of Marine GeologyTongji UniversityShanghai 200092China State Key Laboratory of Marine GeologyTongji UniversityShanghai 200092China State Key Laboratory of Marine GeologyTongji UniversityShanghai 200092China

While the high-temperature exhumation process in the Dabie Mountain has been well documented, the low-temperature exhumation of this area since Cretaceous, especially since Late Cretaceous, is relatively less studied. Low-temperature thermochronology provides one of the important approaches to solve this problem. Based on the data of fission track and (U-Th)/He analysis of apaptites and zircons from the granitoid and metamorphic rocks in the Dabie Mountain, this paper applies Mancktelow’s and Braun’s methods to estimating the exhumation rates and to drawing the regional differential exhumation pattern since Cretaceous, especially since Late Cretaceous by taking into consideration factors such as heat transport, heat advection, topography and heat production, which could influence geothermal field in the shallow crust. Since Cretaceous, the exhumation rate (0.08-0.10 km/Ma) in the region around Tiantangzhai and in the south of Tanlu fault zone is larger than the rate (0.04-0.07 km/Ma) in other areas of the Dabie Mountain. The regional differential exhumation pattern might be related to the push-up effect caused by differential strike-slip movement along NNE-trending faults.

关键词： Dabie Mountain, fission track, (U-Th)/He, modelling, exhumation.

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Stresses of orthotropic laminated beams subjected to high temperature and mechanical load

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Theoretical & Applied Mechanics Letters 2019年第5期9卷 279-284,I0003页

作者： Zhong Zhang ding zhou Xiuli Xu Xuehong Li College of Civil Engineering Nanjing Tech University

Thermo-elastic analysis of simply-supported orthotropic laminated beams subjected to high temperature and mechanical load is presented on the basis of the exact two-dimensional thermoelasticity *** beam is composed of several orthotropic layers,each with temperaturedependent material *** governing equation for each layer is analytically solved using the state space *** displacement and stress solutions of the beam are obtained using the transfer-matrix method.A numerical example is included to study the effects of temperature on the mechanical responses of a sandwich *** results reveal two main effects of temperature:(i)inducing deformations and stresses by itself;(ii)affecting the deformations and stresses induced by the mechanical load.

关键词： Orthotropic laminated beams Temperature-dependent material properties Thermo-elasticity theory State space method Transfer-matrix method

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Over-starvation aggravates intestinal injury and promotes bacterial and endotoxin translocation under high-altitude hypoxic environment

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World Journal of Gastroenterology 2011年第12期17卷 1584-1593页

作者： Qi-Quan zhou ding-zhou Yang Yong-Jun Luo Su-Zhi Li Fu-Yu Liu Guan-Song Wang Department of High Altitude Disease College of High Altitude Military MedicineThird Military Medical UniversityChongqing 400038China Key Laboratory of High Altitude Medicine Ministry of EducationThird Military Medical universityChongqing 400038China Research Center of Mountain Sickness General Hospital of Tibetan Military Area CommandLhasa 850007Tibet Autonomous RegionChina Institute of Respiratory Diseases Xinqiao HospitalThird Military Medical UniversityChongqing 400037China

AIM:To study whether over-starvation aggravates intestinal mucosal injury and promotes bacterial and endotoxin translocation in a high-altitude hypoxic ***:Sprague-Dawley rats were exposed to hy-pobaric hypoxia at a simulated altitude of 7000 m for 72 *** nitrate was used as a tracer to detect intestinal *** apoptosis was observed with terminal deoxynucleotidyl transferase dUTP nick end labeling *** levels of diamino oxidase(DAO),malondialdehyde(MDA),glutamine(Gln),superoxide dismutase(SOD) and endotoxin were measured in intestinal *** translocation was detected in blood culture and intestinal *** addition,rats were given Gln intragastrically to observe its protective effect on intestinal ***:Apoptotic epithelial cells,exfoliated villi and inflammatory cells in intestine were increased with edema in the lamina propria accompanying effusion of red blood *** particles were found in the intercellular space and intracellular *** translocation to mesenteric lymph nodes(MLN) and spleen was *** serum endotoxin,DAO and MDA levels were significantly higher while the serum SOD,DAO and Gln levels were lower in intestine(P< 0.05).The bacterial translocation number was lower in the high altitude hypoxic group than in the high altitude starvation group(0.47±0.83 vs 2.38±1.45,P<0.05).The bacterial translocation was found in each organ,especially in MLN and spleen but not in peripheral *** bacterial and endotoxin translocations were both markedly improved in rats after treatment with ***:High-altitude hypoxia and starvation cause severe intestinal mucosal injury and increase bacterial and endotoxin translocation,which can be treated with Gln.

关键词： High altitude Hypoxia Starvation Intestinal mucosal injury Bacterial translocation Endotoxin Glutamine

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Spontaneous tension pneumothorax during laparoscopic cholecystectomy secondary to congenital diaphragm defects

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Journal of Nanjing Medical University 2009年第2期23卷 146-148页

作者： Zhengnian ding Qinhai zhou Bo Gui Department of Anesthesiology the First Affiliated Hospital of Nanjing Medical University Nanjing 210029 China

A 67-year-old woman with chronic cholecystitis was scheduled to have laparoscopic cholecystectomy under general anesthesia. About 5-10 min after the CO2 intraperitoneal insuffiation, the peak airway pressure gradually increased from 15 cmH2O to 27 cmH2O, the endtidal CO2（EtCO2） from 32 mmHg to 56 mmHg. The SpO2 decreased from 100% to 96%, and blood pressure from 135/80 mmHg to 80/ 52 mmHg. A right side tension pneumothorax was confirmed and a drainage tube was placed in the right pleural cavity. As the continuous gas leakage from the drainage tube was noted, even as ventilation was withheld, the diaphragm was carefully examined and a porous diaphragm was found. These defects were then patched with biomedical materials. The operation was finished uneventfully. It was concluded that in apatient with a tension pneumothorax during laparoscopic surgery, a diaphragm defect should be taken into consideration.

关键词： pneumothorax diaphragm defect

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A Method for the Removal of Ray Refraction Effects in Multibeam Echo Sounder Systems

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Journal of Ocean University of China 2008年第2期7卷 233-236页

作者： ding Jisheng zhou Xinghua TANG Qiuhua First Institute of Oceanography SOA Qingdao 266061 P. R. China

To a multibeam echo sounder system (MBES), under water sound refraction plays an important role in depth measure- ment accuracy, and errors in sound velocity profile lead to inaccuracies in the measured depth (especially for outer beams). A method is developed to estimate the sound velocity profile based on the depth measured by vertical beam. Using this depth and other pa- rameters, such as t (sound pulse propagation time), θ (beam inclination angle), etc. We can estimate a simple sound velocity profile with which the depth error has been reduced. This method has been tested with a real dataset acquired in the East China Sea.

关键词： multibeam echo sounder system acoustic ray refraction equivalent sound velocity profile

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Dynamic Response of A Group of Cylindrical Storage Tanks with Baffles Considering the Effect of Soil Foundation

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China Ocean Engineering 2024年第1期38卷 129-143页

作者： SUN Ying WANG Jia-dong HUO Rui-li zhou ding GU Zhen-yuan QIAN Wang-ping School of Transportation and Civil Engineering Nantong UniversityNantong 226019China Faculty of Civil Engineering and Mechanics Jiangsu UniversityZhenjiang 212013China College of Civil Engineering Nanjing Tech UniversityNanjing 211816China

The sloshing in a group of rigid cylindrical tanks with baffles and on soil foundation under horizontal excitation is studied *** solutions for the velocity potential are derived out by the liquid subdomain *** models with mass-spring oscillators are established to replace continuous *** with the least square technique,Chebyshev polynomials are employed to fit horizontal,rocking and horizontal-rocking coupling impedances of soil,respectively.A lumped parameter model for impedance is presented to describe the effects of soil on tank structures.A mechanical model for the soil-foundation-tank-liquid-baffle system with small amount of calculation and high accuracy is proposed using the substructure *** analytical solutions are in comparison with data from reported literature and numerical codes to validate the effectiveness and correctness of the *** dynamic properties and seismic responses of the soil-tank system are given for the baffle number,size and location as well as soil parameter.

关键词： cylindrical tanks multiple annular baffles equivalent analytical model soil−structure interaction subdomain method dynamic response

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Fault Diagnosis of Satellite Power System Using Variable Precision Fuzzy Neighborhood Rough Set 36

Fault Diagnosis of Satellite Power System Using Variable Pre...

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第36届中国控制会议

作者： Mingliang Suo Monan Zhang ding zhou Baolong Zhu Shunli Li Harbin Institute of Technology

ISBN: (纸本)9781538629185

Data-driven fault diagnosis,known to be simple and convenient,is more suitable for diagnosing the complicated systems of ***,there are two main bottlenecks of data-driven fault diagnosis methods:rule acquisition and decision *** the rough set theory can solve above issues well,the obtained rules seem to be more crisp and the diagnosis decisions are not enough ***,we propose a diagnosis approach based on variable precision fuzzy neighborhood rough set（VPFNRS） model,which could extract fuzzy rules from hybrid data with noises and make fuzzy diagnosis results based on the extracted fuzzy rule model and the weights of condition ***,we present a VPFNRS model based on neighborhood rough set,and then the theories of fuzzy rule acquisition and decision making are ***,the successful applications in satellite power system verify the feasibility and correctness of the proposed approach.

关键词： Fault Diagnosis Neighborhood Rough Set Fuzzy Theory Rule Acquisition Data-driven Satellite

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3-D Temperature Fields in Laminated Shells Subjected to Thermo-Loads

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Structural Durability & Health Monitoring 2018年第4期12卷 281-298页

作者： Hai Qian ding zhou Bin Gu Rathnayaka Mudiyanselage D.M.S. Faculty of Civil Engineering and Mechanics Jiangsu UniversityZhenjiang212013PR.China College of Civil Engineering Nanjing Tech UniversityNanjing211816PR.China University of Queensland QueenslandAustralia

The temperature fields in the laminated shells were studied, including opencylindrical shells and cylindrical shells, according to the thermal theory. Analyticalsolution of the temperature in the shells with the known temperature on the surfaces waspresent. The thinning layer approach was introduced to simplify the three-dimensionalheat conduction equation. Firstly, the layered shell was divided into N thinner layers. Thegoverning equation was simplified by replacing the variable r by r0 in the center line ofevery thin layer. The general solutions of temperature satisfying the simplified threedimensionalgoverning equation in single-layered shell were deduced in the cylindricalcoordinate system. Then, the temperature and heat flux relationships between the surfacescould be found by transferring matrixes. According to the continuities of temperature andheat flux in the interface of the laminates, the temperature and heat flux relationships ofthe surfaces were derived. With the temperature condition on the surfaces, the unknowncoefficients in the general solution of temperature were obtained. Finally, the effects fromthe thinning layer approach were eliminated by analyzing different numbers of thin *** validity and accuracy of the proposal method were proved from the convergence andcomparison studies. And several numerical examples were studied to investigated thetemperature effects from surface temperatures, geometric size of the shells andcomposition of layers.

关键词： Analytical solution temperature laminated Shells the analytical method thetransfer matrix method

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Theoretical Analysis of the Application of Immobilized Cells to the Continuous Fermentation Process

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哈尔滨工业大学学报 1990年第3期22卷 112-120页

作者： Hou Wenhua Yue Qixian zhou ding (Department of Applied Chemistry)

This paper theoretically studies the continuous immobilized cell (IMC) fer mentation system. A kinetic model of IMC is established, and the relational expressions between production rate, substrate concentration, biomass concentration and dilution rate in the IMC continuous stirred tank reactor (CSTR) are derived. These equations and some numerical calculations show that as compared with the free cell system the IMC system has many advantages: high production rate, steady operation, and being independent of the dilution rote. They also indicate that the diffusion of substrate is a constraint to the production of metablite.

关键词：固相化细胞连续发酵过程生化工程生物反应器生物量浓度稀释率固相酶

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