检索结果-南通市图书馆

Journal of Environmental Sciences 2021年第3期33卷 397-412页

作者： Yijing Li Shanghua Wu shijie Wang shijie zhao Xuliang Zhuang Key Laboratory of Environmental Biotechnology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Sino-Danish Center University of Chinese Academy of SciencesBeijing 100049China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

In groundwater,deep soil layer,sediment,the widespread of xenobiotic organic contaminants(XOCs)have been leading to the concern of human health and eco-environment safety,which calls for a better understanding on the fate and remediation of XOCs in anoxic *** the absence of oxygen,bacteria utilize various oxidized substances,***,sulphate,metallic(hydr)oxides,humic substance,as terminal electron acceptors(TEAs)to fuel anaerobic XOCs *** there have been increasing anaerobic biodegradation studies focusing on species identification,degrading pathways,community dynamics,systematic reviews on the underlying mechanism of anaerobic contaminants removal from the perspective of electron flow are *** this review,we provide the insight on anaerobic biodegradation from electrons aspect-electron production,transport,and *** mechanism of the coupling between TEAs reduction and pollutants degradation is deconstructed in the level of community,pure culture,and cellular ***,relevant strategies to promote anaerobic biodegradation are proposed for guiding to an efficient XOCs bioremediation.

关键词： Organic contamination Anoxic environment Anaerobic biodegradation Terminal electron acceptor processes(TEAPs)

维普期刊数据库

A Novel Quantum Entanglement-Inspired Meta-heuristic Framework for Solving Multimodal Optimization Problems

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2021年第1期30卷 145-152页

作者： zhao shijie MA Shilin GAO Leifu YU Dongmei Institute of Optimization and Decision College of Science Liaoning Technical University Institute for Optimization and Decision Analytics Liaoning Technical University

To solve Multimodal optimization problems(MOPs), a Novel Quantum entanglement-inspired meta-heuristic framework(NMF-QE) is proposed. Its main inspirations are two concepts of quantum physics:quantum entanglement and quantum superposition. When given Proto-born particles(PBPs) of a population, these two concepts are mathematically developed to generate twin-born and combination-born particles, *** if any elite-born particles would be created by a local re-searching strategy. These three or four groups of particles come together as a whole search population of NMF-QE to realize exploration and exploitation of algorithms. To guarantee dynamical optimization capability of NMF-QE, the individual evolutionary mechanism of some existing meta-heuristics will be adopted to iteratively create PBPs. A selected meta-heuristic is coupled with NMF-QE to present its improved variant. Numerical results show that the proposed NMF-QE can effectively improve optimization performance of meta-heuristics on MOPs.

关键词： optimisation quantum entanglement NMF-QE quantum superposition genetic algorithms search problems combination-born particles quantum physics evolutionary computation given Proto-born particles Multimodal optimization problems elite-born particles Novel Quantum entanglement-inspired meta-heuristic framework existing meta-heuristics

A Novel Modified Tree-Seed Algorithm for High-Dimensional Optimization Problems

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2020年第2期29卷 337-343页

作者： zhao shijie GAO Leifu TU Jun YU Dongmei Institute of Optimization and Decision College of Science Liaoning Technical University Institute for Optimization and Decision Analytics Liaoning Technical University

To efficiently handle high-dimensional continuous optimization problems, a Modified tree-seed algorithm(MTSA) is proposed by coupling a newly introduced control parameter named as Seed domain shrinkable coefficient(SDSC) and Local reinforcement strategy(LRS) based on gradient information of adjacentgeneration best trees. SDSC is dynamically decreased with iterations to adjust the produced domain of offspring seeds,for achieving the tradeoff between the global exploration and local exploitation. LRS strategy is to execute local exploitation process by employing gradient information of two best trees, for enhancing convergence efficiency and local optima avoidance with probabilities. The compared experimental results show the different effects of differenttype SDSC on MTSA, the faster convergence efficiency and the stronger robustness of the proposed MTSA.

关键词： Tree-seed algorithm Seed domain shrinkage Local reinforcement High-dimension optimization

The geochemical evidences of sulphur oil sources in the BZ35/36 structures of the Huanghekou Sag, Bohai Bay Basin, China

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Petroleum Research 2019年第2期4卷 164-172页

作者： Qiang Fu Binbin Liu Chengmin Niu shijie zhao State Key Laboratory of Marine Geology School of Marine and Earth ScienceTongji UniversityShanghai200092China Tianjin Branch of Exploration and Development Research Institute CNOOC(China)co.LTDTianjin300452China

Crude oils in the BZ35/BZ36 fields found within the Paleogene Dongying and Shahejie formations in the Huanghekou Sag of the Bohai Bay Basin,China have generally high density,viscosity,and sulfur *** physical properties and geochemical features have obvious differences when compared with crude oils from other structures within the Huanghekou *** comparison and analysis of biomarkers(e.g.,pristine/phytane,gammacerane,C24Te/C26TT,C2920S/(20Sþ20R),C29bb/(bbþaa),etc.)show that sour crude oil from the BZ35/BZ36 fields is similar to the sour oil in the Miaoxi Sag adjacent to the eastern of Huanghekou ***,low maturity oils in the Miaoxi Sag have likely migrated southwest,while the sweet,higher maturity oils in the Huanghekou Sag have migrated *** oils generated from these two sags have focused in the BZ35/BZ36 *** source rock of the sour crude oil was most likely formed in a dry climate and strong reducing saline lake.

关键词： Bohai Bay Basin Huanghekou sag Sour crude oil Biomarker Hydrocarbon charging

Influence of multi-stage volcanic events on the Late Cretaceous-Paleogene reservoirs and its geological significance in the northern Central Myanmar Basin

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2024年第4期42卷 1074-1086页

作者： Zengyuan ZHOU Weilin ZHU Wenxu PENG Hefeng SUN shijie zhao Xiaowei FU State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China CNOOC International Ltd. Beijing 100027China

The northward subduction of the Neo-Tethys oceanic crust triggered multiple magmatic activities in the West Myanmar Arc,which in turn influenced the deposition of sedimentary pyroclastic rocks from the Cretaceous to Eocene strata in the Central Myanmar Basin(CMB).The pore structure of these lithologic reservoirs is complex and rich in tuffaceous sandstone,which plays an adverse role in reservoir development in this *** understand the development characteristics and genetic mechanism of the pyroclastic rocks within three sets of reservoirs in this area,a comprehensive analysis was conducted through borehole core observations,thin section identification,scanning electron microscope analysis,and mercury injection *** tuffaceous sandstone from the upper Cretaceous to the Eocene is dominated by intermediate-acid volcanic rock *** pyroclastic rocks exhibit evident chloritization and ironization,with residual intergranular pores being the principal type accompanied by a smaller amount of intergranular dissolved pores and intragranular dissolved *** highest porosity is observed in the Eocene tuffaceous sandstone,ranging from 8%to 12%.The Late Cretaceous to Paleocene sandstones exhibit lower porosity levels of only 4%-6%.These reservoirs are characterized by their low porosity and *** the presence of a good source rock in this area,the volcanic debris particles filling the pores,as well as their subsequent devitrification,chloritization,and limonite mineralization,result in pore throat blockage and *** reservoirs in this area are small in size,exhibit poor reservoir connectivity and lateral continuity,and fail to meet the necessary conditions for commercial-scale hydrocarbon accumulation and migration.

关键词： Central Myanmar Basin back-arc basin reservoir characteristic volcanic debris

维普期刊数据库

Distributed Observers Design for Leader-Following Control of Nonlinear Multi-agent Systems with Heterogeneous Topologies 36

在线全文

学校读者我要写书评

暂无评论

Distributed Observers Design for Leader-Following Control of...

The Implementation Effect Research of Employment Promotion Policy of New Migrant Workers

第36届中国控制会议

作者： shijie zhao Li Gao Na Huang Hangzhou Danzi University School of Automation

ISBN: (纸本)9781538629185

This paper focuses on consensus of multi-agent systems with leader-following and unknown nonlinear dynamics under heterogenous *** of all,we give a control algorithm for the condition that the system without leader under heterogeneous *** conditions in terms of linear matrix inequality（LMI） are established to guarantee distributed consensus of multi-agent *** second,we design distributed observers for the leader-following control of the multiagent *** Lyapunov function（CLF） method is applied to prove consensus of system with and without nonlinear *** simulation are provides to show that the states of all agents can reach consensus under proposed control laws.

关键词： Multi-agent systems Nonlinear dynamics Heterogeneous topologies

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

International English Education Research 2015年第7期 120-122页

作者： shijie zhao Shanghai University of Engineering Science China

In China, the national policies on employment generation of migrant workers have an important role in guiding. The employment satisfaction generation of migrant workers, the employment scale, employment quality were all studied via research and statistics, which were analysing to result in the role of national policies to promote employment of the new generation of migrant workers, and the various factors of the impact of the new generation of rural migrant workers in recent years. In this study, the two generations are treated differently according to their characteristics, which results in conclusions that can fully display the current generation problems in the process of employment Therefore, the current systematic research and exploration about the employment problem has very important significance.

关键词： Generation of migrant workers Employment characteristics National policies Employability

Joint Funds of the National Natural Science Foundation of China: a review of information sciences between 2011 and 2020

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2021年

作者： Zhilan LI Jinglin ZHANG shijie zhao Quan LIU Yan WANG Changrui WANG National Natural Science Foundation of China School of Artificial Intelligence Hebei University of Technology School of Automation Northwestern Polytechnical University

The National Natural Science Foundation of China(NSFC)fully introduces and implements a strict and objective international peer review system and performs its mission of supporting basic research, cultivating talents, conducting international cooperation, and promoting economic and social development, which is the main channel to promote social and economic development.

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

电商供应链物流服务契约设计与协调

计算机集成制造系统 2018年第6期24卷 1579-1588页

作者：徒君黄敏赵世杰辽宁工程技术大学理学院辽宁阜新123000 东北大学信息科学与工程学院辽宁沈阳110819

电商与第三方物流供应商之间缺乏协调机制,为了找出有效的物流服务契约以协调由一个电商与一个第三方物流供应商组成的电商供应链,考虑物流服务水平与产品销售价格同时影响产品市场需求,分别假设产品销售价格外生与内生,研究物流服务契... 详细信息

电商与第三方物流供应商之间缺乏协调机制,为了找出有效的物流服务契约以协调由一个电商与一个第三方物流供应商组成的电商供应链,考虑物流服务水平与产品销售价格同时影响产品市场需求,分别假设产品销售价格外生与内生,研究物流服务契约的设计与协调问题。针对传统物流契约的不足,分别引入成本分担契约与收益共享契约,实现对电商与第三方物流供应商的协调。结果表明,成本分担契约能够实现产品价格外生下的供应链协调;收益共享契约能够实现产品价格内生下的供应链协调;成本分担比例与收益共享比例决定协调能否成功。数值实验调查了成本分担比例与收益共享比例对电商与第三方物流供应商期望利润的影响。

关键词：电商供应链物流服务契约设计协调第三方物流

维普期刊数据库

The influence of extreme cold ambient temperature on out of hospital cardiac arrest: A systemic review and meta-analysis

在线全文

学校读者我要写书评

暂无评论

Frigid Zone Medicine 2022年第3期2卷 186-192页

作者： Yanxia Lin Huanrui Zhang shijie zhao Guohui Hua Wen Tian Department of Geriatric Cardiology The First Affiliated Hospital of China Medical UniversityShenyang 110001China

Objective:Many researches have demonstrated the effects of the extreme cold ambient temperature on the risk of out-of-hospital cardiac arrest(OHCA);yet,the results have been *** performed a meta-analysis to evaluate whether extreme cold ambient temperature is related to ***:We searched for time-series studies reporting associations between extreme cold ambient temperature and OHCA in PubMed,web of science and Cochrane ***:Six studies involving 2337403 cases of OHCA were qualified for our *** odds ratio(OR)of OHCA was significantly increased in extreme cold weather(defined as the 1st or 5th centile temperature year-round)compared to reference temperature(as the 25th centile temperatures or daily mean temperature with minimum risk of OHCA)(OR=1.49,95%CI 1.18-1.88).The subgroup analysis for the elderly and the female failed to detect the influence of extreme cold weather on OHCA,the ORs are 1.25(95%CI 0.89-1.75)and 1.19(95%CI 0.87-1.64),***:The risk of OHCA is significantly higher in extreme cold ambient temperatures than in reference temperature,according to a relative temperature scale with percentiles of the region-specific temperature distribution.

关键词： extreme cold weather cardiac arrest meta-analysis