检索结果-南通市图书馆

Assessment of Coal Mine Safety Based on Bayesian Method with Entropy Weight

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

Assessment of Coal Mine Safety Based on Bayesian Method with...

第30届中国控制与决策会议

作者： Mao Lizhen feng daguang Foreign Languages Teaching Department Shenyang Agricultural University Institute of Sciences Shenyang Agricultural University

Assessment of coal mine safety is the basis of its safe management, not only provides safety precautions against accidents, but also gives proposals for its investment in production and safety management, as well as the improvement of its economic effectiveness. An algorithm, with Bayesian theory combined with entropy weight, is applied to the assessment of safety for a southern coal mine based on 6 indexes. The results show that the algorithm is practical and effective for the assessment of coal mine safety and provides a new and more scientific method for its safety assessment.

关键词： entropy weight Bayesian theorem Coal mine safety Index of assessment

Analysis of optimal solution to the single machine scheduling with fuzzy due-dates

在线全文

cnki会议

学校读者我要写书评

暂无评论

Analysis of optimal solution to the single machine schedulin...

第24届中国控制与决策会议

作者： daguang feng 1 , Suwen Wu 1 , Bo Liu 1 , Lizhen Mao 2* . 1 Institute of Science, Shenyang Agricultural University, Shenyang 1108662 Foreign Language Teaching Department, Shenyang Agricultural University, Shenyang 110866

This paper is concerned with single machine scheduling problem with fuzzy due dates where satisfaction based benefit are relevant. It gives an analysis and proof to the character of optimal solution for the scheduling... 详细信息

关键词： Scheduling Fuzzy due date Grade of satisfaction

在线全文

cnki会议

学校读者我要写书评

暂无评论

共振吸收介质中含时间的非简并四波混频理论

内蒙古大学学报(自然科学版) 1988年第3期 464-471页

作者：徐大光冯启元内蒙古大学激光物理教研室

本文理论分析了在共振吸收介质中光波电场(振幅)与时间有关的非简并四波混频,得到了耦合波方程的精确解。发现在介质中,信号光和探测光的光波电场不仅是时间的函数,而且其空间分布也发生了变化,进而得到反射率R和透射率T以及参量过程的... 详细信息

本文理论分析了在共振吸收介质中光波电场(振幅)与时间有关的非简并四波混频,得到了耦合波方程的精确解。发现在介质中,信号光和探测光的光波电场不仅是时间的函数,而且其空间分布也发生了变化,进而得到反射率R和透射率T以及参量过程的转换系数(?)。

关键词：共振吸收介质含时间的非简并四波混频

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

共振吸收介质中含时间的简并四波混频理论

内蒙古大学学报(自然科学版) 1988年第2期 293-300页

作者：徐大光冯启元内蒙古大学激光物理教研室内蒙古大学激光物理教研室

本文理论分析了在共振吸收介质中光波电场(振幅)与时间有关的简并四波混频,得到了耦合波方程的精确解。发现在介质中,信号光和探测光的光波电场不仅是时间的函数,而且其空间分布也发生了变化,进而得到在介质入射面处的反射率R和在出射... 详细信息

本文理论分析了在共振吸收介质中光波电场(振幅)与时间有关的简并四波混频,得到了耦合波方程的精确解。发现在介质中,信号光和探测光的光波电场不仅是时间的函数,而且其空间分布也发生了变化,进而得到在介质入射面处的反射率R和在出射面处的透射率T的表达式。

关键词：共振吸收介质简并四波混频

Dynamic Programming for Single Batching Machine with Total Weighted Completion Time

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Dynamic Programming for Single Batching Machine with Total W...

2010 Chinese Control and Decision Conference

作者： daguang feng~1,Peng Liu~2,Suwen Wu~1,Bo Liu~1 1.Science of Institute,Shenyang Agricultural University,Shenyang,China,110866 2.School of Management,Shenyang University of Technology,Shenyang,110870,China

＜正＞The problem of total weighted completion time for single batching machine is an open problem until ***,heuristics is very useful to the *** consttuct a nonlinear mathematical model for the problem with unbounded batching machine.A dynamic programming is also carried for the problem,which is proved to be at most 2 times of the optimal solution *** an example,we show that the bound is tight.

关键词： batching machine dynamic programming worst case

A Note on Two-agent Single-machine Scheduling Problem with Deteriorating Jobs

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Note on Two-agent Single-machine Scheduling Problem with D...

2010 Chinese Control and Decision Conference

作者： Peng Liu~1,daguang feng~2,Xiaoye Zhou~1,Qi Tang~1 1.School of Management,Shenyang University of Technology,Shenyang,110870,China 2.Science of Institute,Shenyang Agricultural University,Shenyang,China,110866

＜正＞This paper considers the two-agent scheduling problems with decreasing linear deterioration on a single *** agents compete to perform their respective jobs on a common single machine,and each agent has his own criterion to *** processing times of jobs are defined as a decreasing linear function of their starting *** goal is to minimize the maximum cost of the first agent with the restriction that the makespan of the second agent cannot exceed a given upper *** propose the optimal properties and present the optimal polynomial time algorithm to solve the scheduling problem.

关键词： Scheduling Two-agent Deteriorating jobs Single machine

新农科建设背景下基于SPOC的高等数学线上线下混合教学模式的实践与研究

在线全文

cnki会议

学校读者我要写书评

暂无评论

高等农业教育 2023年第5期 113-120页

作者：冯大光赵裕国王铁良沈阳农业大学辽宁沈阳110866

随着教育信息化的不断发展,基于SPOC的线上线下混合教学模式在高等教育教学中广泛应用。2019年,新农科建设全面启动,在“四新”理念引领下,新农科人才的培养要求及培养方式也必将发生变化。研究以沈阳农业大学经济管理类“高等数学”公... 详细信息

随着教育信息化的不断发展,基于SPOC的线上线下混合教学模式在高等教育教学中广泛应用。2019年,新农科建设全面启动,在“四新”理念引领下,新农科人才的培养要求及培养方式也必将发生变化。研究以沈阳农业大学经济管理类“高等数学”公共必修基础课教学改革为对象,根据学校的办学定位和农业院校人才培养要求,依托辽宁省精品资源共享课教学平台,开展基于SPOC的线上线下混合式教学模式研究。实验初期以2019级经济管理类4个专业本科新生302人为研究对象,分为实验1班、实验2班、对照1班、对照2班,实验班级在面授课课程安排上采用“化大为小”的模式,在知识点的处理上,坚持“难易有别,区分对待”的原则,使学生易于接受和理解较困难的知识点,注重教学实效,注重学生自主学习能力和创造性思维能力的培养。经过教学实践和探索,对比分析结果显示,基于SPOC的线上线下混合教学模式有效提高了课程教学效果,有利于学生学习成绩的提高,有利于学生自主学习能力的培养。在初期实验教学成功的基础上,该教学模式在2020级及2021级经济管理类学生中推广应用,课程获批辽宁省一流课程建设支持,课程成绩及数学建模竞赛成绩对比分析显示,该教学模式有利于学生数学能力、团队合作意识、深度思考习惯及创新能力的培养,适合在同类别课程中推广和应用。

关键词：新农科高等农业院校线上线下混合式教学 SPOC

维普期刊数据库

《概率论与数理统计》课程在管理类专业教学方法实践

在线全文

学校读者我要写书评

暂无评论

高等数学研究 2021年第1期24卷 111-115页

作者：于淼吴素文王倩宋贽冯大光边振兴沈阳农业大学理学院沈阳110161 沈阳农业大学土地与环境学院沈阳110161

针对沈阳农业大学2018级土地管理专业学生,从翻转式教学、案例教学与专业数学建模三个方面对教学方法进行探索实践.将经典数据分析方法结合教学应用于专业实践.

关键词：概率论与数理统计教学方法翻转式教学案例教学数学建模

维普期刊数据库

Engineering CeO_(2)/CuO heterostructure anchored on upconversion nanoparticles with boosting ROS generation-primed apoptosisferroptosis for cancer dynamic therapy

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第4期16卷 5322-5334页

作者： Xuan Gao Jing feng Kehong Lv Yifei Zhou Ruohao Zhang Shuyan Song Hongjie Zhang daguang Wang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Department of Chemistry Tsinghua UniversityBeijing 100084China Gastric and Intestinal Department General Surgery CenterFirst Hospital of Jilin UniversityChangchun 130021China

Highly toxic reactive oxygen species(ROS)induced apoptosis and ferroptosis have been considered as significant cell death pathways for cancer ***,insufficient amount of intracellular ROS extremely restricts the therapeutic *** this,we report a rationally designed nanocomposite(mUCC)with enhanced ROS generation ability,inducing the combination of apoptosis and ferroptosis through synergistic photodynamic therapy(PDT)and chemodynamic therapy(CDT).Under 808 nm near-infrared(NIR)light irradiation,photocatalytic reaction is triggered starting from the separation of electron-hole pairs on the surface of heterojunction(CeO_(2)/CuO),realizing improved ROS ***,mUCC served as Fenton-like agent exhibits considerable ability to generate highly toxic·OH under tumor microenvironment(TME).The boosted accumulation of ROS disrupts the redox balance within tumor cells and results in the integration of apoptosis and *** addition,mUCC shows satisfactory tumor targeting property benefiting from the cancer cell membrane functionalization under the guidance of magnetic resonance imaging(MRI)and NIR fluorescence *** intelligent mUCC with good biocompatibility and excellent antitumor response achieves efficient tumor elimination under synergistic PDT and *** work offers an elective approach for further development of ROS-based therapeutic nanoplatform in cancer therapy.

关键词： upconversion nanoparticles heterojunction reactive oxygen species apoptosis-ferroptosis synergistic dynamic therapy