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Topset‑to‑forest rollover trajectories as reliable predictors of sediment‑volume partitioning into deep‑lake areas

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Petroleum Science 2021年第3期18卷 712-727页

作者： Xian-Zheng Zhao cheng-lin gong Li-Hong Zhou Dong-Wei Li Xiu-Gang Pu Guo-Meng Han Feng-Ming Jin Yi-Xin Yu Wen-Ya Jiang Xiong-Ying Dong PetroChina Dagang Oilfeld Company Tianjin 300280China State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China College of Geosciences China University of Petroleum(Beijing)ChangpingBeijing 102249China

Topset-to-forest rollover trajectories and their relation to sediment-and sand-budget partitioning into deep-lake areas are far from being well understood,as compared with their marine counterparts of shelf *** quantitatively distinctive topset-to-forest rollover trajectories and clinothem-stacking patterns were recognized in the Oligocene Qikou Sag of the Bohai Bay Basin and are quantifed in terms of trajectory angles(T_(se)),topset thickness(T_(t)),forest thickness(T_(f)),bottomset thickness(T_(b)),and clinothem-set relief(R_(c)).Rising topset-to-forest trajectories have positive T_(se) of 0.15°-0.51°(averaging 0.35°).Ranges in T_(t),T_(f),T_(b),and R_(c) of their associated progradational and aggradational clinothem sets are,respectively,32.4-58.7 m(averaging 42.7 m),76.9-176.2 m(averaging 148.3 m),0 m,and 167.8-320.8 m(averaging 272.9 m).Falling topset-to-forest rollover trajectories,in contrast,have negative T_(se) of−0.12°to−0.02°(averaging−0.06°).Ranges in T_(t),T_(f),T_(b),and R_(c) of their associated progradational and downstepping clinothem sets are,respectively,0 m,266.0-395.7 m(averaging 333.4 m),441.1-542.5 m(averaging 464.1),and 874.9-922.6 m(averaging 892.5 m).These two topset-to-forest rollover trajectories and clinothem-stacking patterns are closely linked to two distinctive patterns of sediment-and sandvolume partitioning into deep-lake areas,which are quantifed in terms of T_(t),T_(b),and diferential sediment aggradation of topset segments and forest-to-bottomset compartments(As/Ad).Rising topset-to-forest rollover trajectories and associated progradational and aggradational clinothem sets are characterized by aggradational topsets(reported as T_(t) of 32.4-58.7 m),a lack of time-equivalent bottomsets,and As/Ad of 0.22-0.87(averaging 0.33),and are fronted by mud-dominated depositional deposits,with sporadic occurrence of thinner and regionally localized forest *** are,therefore,inefcient at delivering terrestrial sediments or sands i

关键词： Topset-to-forest rollover trajectories Sediment-delivery paradigm Oligocene Qikou Sag Bohai Bay Basin

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淮南矿区矿井水深度处理技术研究

能源环境保护 2009年第1期23卷 34-37页

作者：程功林淮南矿业集团有限责任公司安徽淮南232001

针对淮南矿区淮河以北矿井水中含有以氯化物为主的高矿化度矿井水的水质特点,在原有净化处理设施的基础上,设计了以叠片过滤、超滤与反渗透相结合的深度处理工艺,并通过试验研究确定了该工艺各单元的技术参数及运行可靠性。

关键词：矿井水深度处理高矿化度

Hypoxia-preconditioned bone marrow-derived mesenchymal stem cells protect neurons from cardiac arrest-induced pyroptosis

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Neural Regeneration Research 2025年第4期20卷 1103-1123页

作者： Xiahong Tang Nan Zheng Qingming lin Yan You Zheng gong Yangping Zhuang Jiali Wu Yu Wang Hanlin Huang Jun Ke Feng Chen Shengli Clinical Medical College of Fujian Medical University Fujian Medical UniversityFuzhouFujian ProvinceChina Department of Emergency Fujian Provincial HospitalFuzhouFujian ProvinceChina Fujian Provincial Key Laboratory of Emergency Medicine FuzhouFujian ProvinceChina The Second Department of Intensive Care Unit Fujian Provincial Hospital South BranchFuzhouFujian ProvinceChina

Cardiac arrest can lead to severe neurological impairment as a result of inflammation,mitochondrial dysfunction,and post-cardiopulmonary resuscitation neurological *** preconditioning has been shown to improve migration and survival of bone marrow–derived mesenchymal stem cells and reduce pyroptosis after cardiac arrest,but the specific mechanisms by which hypoxia-preconditioned bone marrow–derived mesenchymal stem cells protect against brain injury after cardiac arrest are *** this end,we established an in vitro co-culture model of bone marrow–derived mesenchymal stem cells and oxygen–glucose deprived primary neurons and found that hypoxic preconditioning enhanced the protective effect of bone marrow stromal stem cells against neuronal pyroptosis,possibly through inhibition of the MAPK and nuclear factor κB ***,we transplanted hypoxia-preconditioned bone marrow–derived mesenchymal stem cells into the lateral ventricle after the return of spontaneous circulation in an 8-minute cardiac arrest rat model induced by *** results showed that hypoxia-preconditioned bone marrow–derived mesenchymal stem cells significantly reduced cardiac arrest–induced neuronal pyroptosis,oxidative stress,and mitochondrial damage,whereas knockdown of the liver isoform of phosphofructokinase in bone marrow–derived mesenchymal stem cells inhibited these *** conclude,hypoxia-preconditioned bone marrow–derived mesenchymal stem cells offer a promising therapeutic approach for neuronal injury following cardiac arrest,and their beneficial effects are potentially associated with increased expression of the liver isoform of phosphofructokinase following hypoxic preconditioning.

关键词： bone marrow–derived mesenchymal stem cells cardiac arrest cardiac resuscitation hypoxic preconditioning liver isoform of phosphofructokinase mitochondria neuroinflammation oxidative stress pyroptosis reactive oxygen species

Recent progress on photoactive nonprecious transition-metal complexes

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Science China Chemistry 2025年第1期 46-95页

作者： Zhong-Liang gong Hong-Jie Zhang Yan cheng Jianxun Liu Yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong gong Yong Chen Chang-Jiang Yao Yuan-Yuan Zhu Liang-Jin Xu Yu-Wu Zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical Engineering Beijing Institute of Technology College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical Engineering Anhui University Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive complexes of nonprecious transition metals, mainly including those in the first-row and partially the second-row of the Periodic table of elements, have received increasing attention in view of their low cost and long-term sustainability. They are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes, including photoactive Zr, V, Cr, Mo, and W complexes, Mn complexes and hybrids, Fe, Co, Ni, and Cu complexes, and Zn and Cd complexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal complexes. In addition, a perspective on the future development in this field is provided at the end of this review.

关键词：

同方期刊数据库

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淮南矿区煤矸石资源化利用实践

能源环境保护 2009年第4期23卷 61-64页

作者：程功林陈永春淮南矿业(集团)有限责任公司安徽淮南232001

针对淮南矿区煤矸石的特性及产生情况,对淮南矿区近年来煤矸石资源化利用的实践进行了介绍,结合国内外煤矸石资源化利用现状提出了淮南矿区煤矸石资源化利用的发展方向。

关键词：淮南煤矸石资源化利用实践

应用PLAXIS有限元程序进行渗流作用下的边坡稳定性分析

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长江科学院院报 2006年第4期23卷 13-16页

作者：唐晓松郑颖人邬爱清林成功解放军后勤工程学院研究生大队重庆400041 长江科学院岩基研究所武汉430010 重庆大学土木工程学院重庆400030

为了进行渗流作用下的边坡稳定性分析,必须考虑渗流场与应力场之间的相互耦合作用。目前对渗流作用下边坡稳定性的分析一般都是通过自编程序进行的,通常都是先对渗流进行有限元数值模拟,然后再对边坡采用条分法进行稳定性分析。目前国... 详细信息

为了进行渗流作用下的边坡稳定性分析,必须考虑渗流场与应力场之间的相互耦合作用。目前对渗流作用下边坡稳定性的分析一般都是通过自编程序进行的,通常都是先对渗流进行有限元数值模拟,然后再对边坡采用条分法进行稳定性分析。目前国际上关于渗流作用下边坡稳定性的分析方法发展较快,已经可以采用有限元强度折减法来进行分析计算,尤其是PLAXIS有限元程序对于这方面有较好的适用性。应用PLAXIS有限元程序采用有限元强度折减法,进行了渗流作用下的边坡稳定性分析,并用ADINA和GEO-SLOPE程序进行了验算。

关键词：渗流作用稳定性有限元强度折减法 PLAXIS有限元程序

基于调查数据的交通运输行业增加值测算方法思考——以公路货运行业为例

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物流工程与管理 2014年第8期36卷 113-115页

作者：林成功段新秦芬芬交通运输部科学研究院北京100029

增加值是反映经营活动成果和计算国民生产总值的主要指标。测算交通运输行业增加值,可以反映交通运输行业的投入、产出和经济效益情况,为改善交通运输企业生产经营提供依据。文中依托交通运输部组织开展的专项调查资料,结合国家统计局... 详细信息

增加值是反映经营活动成果和计算国民生产总值的主要指标。测算交通运输行业增加值,可以反映交通运输行业的投入、产出和经济效益情况,为改善交通运输企业生产经营提供依据。文中依托交通运输部组织开展的专项调查资料,结合国家统计局提供的增加值测算方法,以公路货运行业为例,对交通运输行业的增加值测算方法进行了思考。针对不同的调查内容,给出了两种公路货运行业的增加值测算方法,并对两种方法的优缺点进行了对比说明。

关键词：交通运输调查增加值公路货物周转量