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鄂尔多斯盆地西缘中—晚三叠世构造-物源-古地貌体系演化——来自碎屑锆石、地球化学和岩石学的证据

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石油学报 2019年第6期40卷 660-676页

作者：谭聪阮壮于炳松刘策苏玲中国石油勘探开发研究院北京100083 中国地质大学(北京)地球科学与资源学院北京100083

构造-物源-古地貌体系研究是明确盆地演化的重要手段,是油气资源潜力精确评价的基础。鄂尔多斯盆地西缘中—晚三叠世存在物源、古地貌不清的问题。利用碎屑锆石测年、地球化学等方法对鄂尔多斯盆地西缘及邻区中—晚三叠世开展了构造、... 详细信息

构造-物源-古地貌体系研究是明确盆地演化的重要手段,是油气资源潜力精确评价的基础。鄂尔多斯盆地西缘中—晚三叠世存在物源、古地貌不清的问题。利用碎屑锆石测年、地球化学等方法对鄂尔多斯盆地西缘及邻区中—晚三叠世开展了构造、物源、古地貌系统分析。研究结果表明:中三叠世时河西走廊和鄂尔多斯盆地西缘有统一物源;晚三叠世时物源差别很大,河西走廊物源来自于祁连和柴达木地块,盆地西部物源则来自于西华北地块。物源分析结果结合地层对比和岩石学、地球化学数据表明中三叠世晚期河西走廊和鄂尔多斯盆地有短暂沟通,晚三叠世时存在分隔两地的小规模水下古隆起。这种物源和古地貌演化与华北—扬子板块在中—晚三叠世的自东向西碰撞过程相适应,反映了挤压主应力点西移的事实以及在此背景下盆内由挠曲向抬升的地貌演化过程。

关键词：鄂尔多斯盆地西缘中—晚三叠世构造-物源-古地貌体系 U-Pb锆石年龄

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基于低偏差序列的矿井供水管网可靠性

中南大学学报（自然科学版） 2014年第5期45卷 1686-1691页

作者：蒋仲安王佩施蕾蕾谭聪北京科技大学金属矿山高效开采与安全教育部重点实验室北京100083

综合考虑管网水力可靠性的影响因素,结合节点和管网整体2个方面确定管段管径、管长、故障率、修复时间以及节点用水量作为评价指标,建立矿井供水管网可靠性评价模型。运用管网平差软件EPANETH进行水力模拟得到各管段故障情况下的节点实... 详细信息

综合考虑管网水力可靠性的影响因素,结合节点和管网整体2个方面确定管段管径、管长、故障率、修复时间以及节点用水量作为评价指标,建立矿井供水管网可靠性评价模型。运用管网平差软件EPANETH进行水力模拟得到各管段故障情况下的节点实际可用水量,然后采用低偏差序列代替伪随机序列的拟蒙特卡罗法仿真模拟求得各节点的可靠度,再以节点需水量占管网总流量的比例为权值,求得整个管网的水力可靠度。研究结果表明:采用该评价模型可确定管网中可靠性较低的节点和对管网水力可靠性影响较大的管段,该计算方法可作为管网优化设计的参考。

关键词：矿井供水管网水力可靠性拟蒙特卡罗法 Sobol序列 EPANETH

Protective Effects of Danmu Extract Syrup on Acute Lung Injury Induced by Lipopolysaccharide in Mice through Endothelial Barrier Repair

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Chinese Journal of Integrative Medicine 2024年第3期30卷 243-250页

作者： XU Han XU Si-cong LI Li-yan WU Yu-huang tan Yin-feng CHEN Long LIU Pei LIANG Chang-fu HE Xiao-ning LI Yong-hui Hainan Provincial Key Lab of Research&Development on Tropic Herbs Hainan Medical UniversityHaikou571199China Department of Stomatology the Second Affiliated Hospital of Hainan Medical UniversityHaikou571199China

Objective:To investigate the effects of Danmu Extract Syrup(DMS) on lipopolysaccharide(LPS)-induced acute lung injury(ALI) in mice and explore the ***:Seventy-two male Balb/C mice were randomly divided into 6 groups according to a random number table(n=12),including control(normal saline),LPS(5 mg/kg),LPS+DMS 2.5 mL/kg,LPS+DMS 5 mL/kg,LPS+DMS 10 mL/kg,and LPS+Dexamethasone(DXM,5 mg/kg) *** pretreatment with DMS and DXM,the ALI mice model was induced by LPS,and the bronchoalveolar lavage fluid(BALF) were collected to determine protein concentration,cell counts and inflammatory *** lung tissues of mice were stained with hematoxylin-eosin,and the wet/dry weight ratio(W/D) of lung tissue was *** levels of tumor necrosis factor-α(TNF-α),interleukin(IL)-6 and IL-1βin BALF of mice were detected by enzyme linked immunosorbent *** expression levels of Claudin-5,vascular endothelial(VE)-cadherin,vascular endothelial growth factor(VEGF),phospho-protein kinase B(p-Akt) and Akt were detected by Western blot ***:DMS pre-treatment significantly ameliorated lung histopathological *** with the LPS group,the W/D ratio and protein contents in BALF were obviously reduced after DMS pretreatment(P<0.05 or P<0.01).The number of cells in BALF and myeloperoxidase(MPO) activity decreased significantly after DMS pretreatment(P<0.05 or P<0.01).DMS pre-treatment decreased the levels of TNF-α,IL-6 and IL-1β(P<0.01).Meanwhile,DMS activated the phosphoinositide 3-kinase/protein kinase B(PI3K/Akt) pathway and reversed the expressions of Claudin-5,VE-cadherin and VEGF(P<0.01).Conclusions:DMS attenuated LPS-induced ALI in mice through repairing endothelial *** might be a potential therapeutic drug for LPS-induced lung injury.

关键词： Danmu Extract Syrup acute lung injury inflammatory factors vascular endothelial growth factor phosphoinositide 3-kinase/protein kinase B Chinese medicine Nauclea officinalis

Micro-mechanism Study on the Different Antioxidants Protective Effect of Vegetable Oil by ReaxFF Molecular Dynamics

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1269-1279页

作者： Haoxi cong Xuefeng Hu Hao Pan Qingmin Li State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources North China Electric Power UniversityBeijing 102206China

The aging problem of vegetable oil has severely restricted the popularization and application of vegetable oil *** antioxidants is the most recommended *** present,there is insufficient research on the micromechanism application of the protective effect of antioxidants on vegetable *** this paper,multiple vegetable oil models with different types and concentrations of antioxidants are *** the molecular dynamics simulation based on ReaxFF is carried out at different temperatures and oxygen *** show that the protective mechanism of antioxidants is to release H and combine this with free radicals generated by the decomposition of unsaturated fatty acids(UFA)in the *** addition,the protective effects of four antioxidants show different *** stronger ones are tert-butyl hydroquinone(TBHQ)and butylated hydroxytoluene(BHT),while the weaker ones are butylated hydroxyanisole(BHA)and propyl gallate(PG).TBHQ has a better protective effect at lower concentrations,but the decomposition of UFA is promoted at higher *** the temperature rises,the decomposition of UFA is *** the addition of oxygen,smaller molecular compounds are easily oxidized,and the decomposition of UFA is *** above research could reveal the microscopic mechanism of antioxidant protection on vegetable oil,providing theoretical references for further exploration of effective vegetable oil aging protection technology.

关键词： Antioxidant molecular dynamics transformer vegetable oil

Effective utilization of dolomitic lead-zinc waste rock by replacing dolomite as flux in iron ore sintering process

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Journal of Iron and Steel Research International 2024年第8期31卷 1861-1872页

作者： Xin Wang cong-cong Yang Jian Pan De-qing Zhu Zheng-qi Guo Guang-hui Xia Shi-juan Qu School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083HunanChina Low-Carbon and Hydrogen Metallurgy Research Center Central South UniversityChangsha 410083HunanChina

With increasingly stringent environmental protection policies,cost-effective and value-added treatment of massive lead-zinc waste rock(LZWR)generated from the preconcentration process has attracted substantial attention.A type of dolomitic LZWR with 18 wt.%MgO,27 wt.%CaO,0.29 wt.%Zn and 1.43 wt.%S was used as a replacement flux in the iron ore sintering *** sinter pot tests were carried out based on an industrial ore *** results show that replacing 0%-60%of dolomite with LZWR does not adversely affect the sintering productivity,fuel consumption rate,and the quality of the sinter products,while the Zn and S elements contained in LZWR can be effectively removed with the residual Zn and S contents of the resultant sinter products being less than 0.02 and 0.055 wt.%,***,substituting LZWR for dolomite as a flux inevitably increases the SO_(2) concentration in the sintering flue gas due to its high sulfur *** the processing capacity of the sintering flue gas desulfurization system,the replacement ratio of dolomite can reach 40%,equal to LZWR consumption of 24.3 kg per ton of *** SO_(2) in sintering flue gas can be recovered to produce(NH_(4))_(2)SO_(4) or HSO_(4),while the volatilized Zn collected into the zinc-containing dust can be subsequently recycled by the rotary hearth furnace ***,it is technologically and economically feasible to use the LZWR as a replacement flux in the iron ore sintering process,providing a new way for the safe,large-scale and low-cost treatment of LZWR.

关键词： Lead Zinc waste rock Dolomite Sintering Flue gas Sinter product

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基于可持续发展理念的灾后重建思考

科技进步与对策 2009年第21期26卷 141-143页

作者：谭聪谭大璐申立银四川大学建筑与环境学院四川成都610065 香港理工大学建筑与房地产系

汶川地震给四川地区带来重大灾害,如何运用有限的资源,使受灾的民众在较短时间内恢复正常生活和生产,因地制宜地进行灾后重建并实现可持续发展显得尤为重要。以四川灾区农村产业规划重建为重点,结合目前灾后农村重建中的实际情况和问题... 详细信息

汶川地震给四川地区带来重大灾害,如何运用有限的资源,使受灾的民众在较短时间内恢复正常生活和生产,因地制宜地进行灾后重建并实现可持续发展显得尤为重要。以四川灾区农村产业规划重建为重点,结合目前灾后农村重建中的实际情况和问题,对基于可持续发展的灾后重建的应用性和合理性进行了论述,试图为今后农村重建决策提供借鉴。

关键词：灾后重建可持续发展产业重建农村建设

Tighter sum uncertainty relations via(α,β,γ)weighted Wigner–Yanase–Dyson skew information

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Communications in Theoretical Physics 2024年第3期76卷 91-99页

作者： cong Xu Zhaoqi Wu Shao-Ming Fei School of Mathematical Sciences Capital Normal UniversityBeijing 100048China Department of Mathematics Nanchang UniversityNanchang 330031China Max-Planck-Institute for Mathematics in the Sciences 04103 LeipzigGermany

We establish tighter uncertainty relations for arbitrary finite observables via(α,β,γ)weighted Wigner–Yanase–Dyson((α,β,γ)WWYD)skew *** results are also applicable to the(α,γ)weighted Wigner–Yanase–Dyson((α,γ)WWYD)skew information and the weighted Wigner–Yanase–Dyson(WWYD)skew *** also present tighter lower bounds for quantum channels and unitary channels via(α,β,γ)modified weighted Wigner–Yanase–Dyson((α,β,γ)MWWYD)skew *** examples are provided to illustrate the tightness of our uncertainty relations.

关键词： quantum channels (α,β,γ)WWYD skew information (α,β,γ)MWWYD skew information uncertainty relations

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综采割煤粉尘运移影响因素的数值模拟

北京科技大学学报 2014年第6期36卷 716-721页

作者：谭聪蒋仲安陈举师王佩北京科技大学土木与环境工程学院北京100083

为解决综采割煤粉尘质量浓度高的问题,获取粉尘控制的合理参数,改善作业环境,以邢东矿2225工作面为研究背景,依据气固两相流理论,运用Fluent软件对综采工作面割煤粉尘运动规律进行数值模拟,并与现场实测的粉尘质量浓度分布情况进行对比... 详细信息

为解决综采割煤粉尘质量浓度高的问题,获取粉尘控制的合理参数,改善作业环境,以邢东矿2225工作面为研究背景,依据气固两相流理论,运用Fluent软件对综采工作面割煤粉尘运动规律进行数值模拟,并与现场实测的粉尘质量浓度分布情况进行对比分析,模拟结果与实际数据基本一致.研究结果表明:工作面风速、采煤机滚筒转速、溜子速度以及壁面条件是影响综采工作面粉尘质量浓度分布的几个重要因素.当工作面平均风速在1.4m·s-1,滚筒转速不超过2.5rad·s-1,溜子速度不超过1.5m·s-1,防降尘效果最佳.同时洒水保持煤壁湿润也起到一定的捕尘作用.

关键词：煤尘除尘综采工作面运动影响因素数值分析

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常见空气污染的表观遗传效应研究进展

浙江大学学报（医学版） 2011年第4期40卷 451-457,460页

作者：谭聪金永堂浙江大学医学部公共卫生学院环境医学系环境表观遗传实验室浙江杭州310058

空气污染与多种疾病有关。近年来,越来越多的研究表明,表观遗传学修饰通常发生在疾病的早期,并且,与遗传学变化相比,表观遗传学修饰在疾病发生、发展中的作用更为重要。因此,对空气污染表观遗传效应的研究,能更全面地反映空气污染物与... 详细信息

空气污染与多种疾病有关。近年来,越来越多的研究表明,表观遗传学修饰通常发生在疾病的早期,并且,与遗传学变化相比,表观遗传学修饰在疾病发生、发展中的作用更为重要。因此,对空气污染表观遗传效应的研究,能更全面地反映空气污染物与基因组的交互作用在疾病发生中的作用。同时,为减少高危人群空气污染的暴露及其引发的有害效应,空气污染的表观遗传学生物标志鉴定是采取及时有效预防措施的有力保证。

关键词：空气污染颗粒物多环芳烃苯电离辐射表观遗传学