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基于高质量发展的钢铁厂总体规划思路

冶金经济与管理 2024年第3期 46-48,52页

作者：李艳艳马业伟中冶赛迪工程技术股份有限公司重庆401122

结合当前我国钢铁行业发展现状,在“产能置换”“环保限产”“煤炭控制”等背景下,对钢铁厂总体规划的思路进行探讨。论述了行业政策环境的影响、企业调研分析的关注点和方法,并从总体规划角度阐述适合钢铁企业发展的规划思路。在钢铁... 详细信息

结合当前我国钢铁行业发展现状,在“产能置换”“环保限产”“煤炭控制”等背景下,对钢铁厂总体规划的思路进行探讨。论述了行业政策环境的影响、企业调研分析的关注点和方法,并从总体规划角度阐述适合钢铁企业发展的规划思路。在钢铁工业高质量发展背景下,钢铁厂总体规划需要结合企业战略定位、发展目标、建设思路、自身优势、限制因素等多方面综合考虑,对钢铁厂进行系统性的规划,助力企业高质量发展,并步入具有竞争优势的发展之路。最后,结合实践,分享开展钢铁厂总体规划工作的体会,以期对同行从业者有所启发。

关键词：高质量发展钢铁厂总体规划

A study of the evolution of nanoparticle dynamics in a homogeneous isotropic turbulence flow via a DNS-TEMOM method

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Journal of Hydrodynamics 2020年第6期32卷 1091-1099页

作者： Hong-ye ma Ming-zhou Yu Han-hui Jin College of Mechanical and Electrical Engineering China Jiliang UniversityHangzhou310018China Institute of Fluid Engineering Zhejiang UniversityHangzhou310027China

In this article,a coupling of the direct numerical simulation(DNS)and the population balance modeling(PBM)is implemented to study the effect of turbulence on nanoparticle dynamics in homogenous isotropic turbulence(HIT).The DNS is implemented based on a pseudo-spectral method and the PBM is implemented using the Taylor-series expansion method of *** result verifies that coagulation due to turbulent shear force has a bigger impact on the evolution of number concentration,polydispersity,and average diameter of nanoparticles than Brownian coagulation in the *** Reynolds number plays an important role in determining the number concentration,polydispersity,and average diameter of nanoparticles,and these quantities change more rapidly with an increase of Reynolds *** is also found that the initial geometric standard deviation slows down the evolution of particle dynamics,but almost has no influence on the polydispersity of nanoparticles.

关键词： nanoparticle dynamics Turbulence pseudo-spectral method Taylor-series expansion method of moments

A single-task and multi-decision evolutionary game model based on multi-agent reinforcement learning

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Journal of Systems Engineering and Electronics 2021年第3期32卷 642-657页

作者： ma ye CHANG Tianqing FAN Wenhui Academy of Army Armored Force Beijing 100072China Department of Automation Tsinghua UniversityBeijing 100084China

In the evolutionary game of the same task for groups,the changes in game rules,personal interests,the crowd size,and external supervision cause uncertain effects on individual decision-making and game *** the markov decision framework,a single-task multi-decision evolutionary game model based on multi-agent reinforcement learning is proposed to explore the evolutionary rules in the process of a *** model can improve the result of a evolutionary game and facilitate the completion of the ***,based on the multi-agent theory,to solve the existing problems in the original model,a negative feedback tax penalty mechanism is proposed to guide the strategy selection of individuals in the *** addition,in order to evaluate the evolutionary game results of the group in the model,a calculation method of the group intelligence level is ***,the Q-learning algorithm is used to improve the guiding effect of the negative feedback tax penalty *** the model,the selection strategy of the Q-learning algorithm is improved and a bounded rationality evolutionary game strategy is proposed based on the rule of evolutionary games and the consideration of the bounded rationality of ***,simulation results show that the proposed model can effectively guide individuals to choose cooperation strategies which are beneficial to task completion and stability under different negative feedback factor values and different group sizes,so as to improve the group intelligence level.

关键词： multi-agent reinforcement learning evolutionary game Q-learning

绿色供应链管理领域的研究热点与前沿——基于CiteSpace的知识图谱分析

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物流科技 2024年第5期47卷 106-110页

作者：马烨施海龙周佳江苏大学管理学院江苏镇江212013

文献取用1999—2022年1 312篇CNKI期刊论文作为样本,绘制绿色供应链管理领域研究的知识图谱,包括关键词共现、作者、发文机构、突现等多个维度,旨在揭示中国绿色供应链管理研究的热点领域与前沿演进,为后续研究提供参考。主要的研究结论... 详细信息

文献取用1999—2022年1 312篇CNKI期刊论文作为样本,绘制绿色供应链管理领域研究的知识图谱,包括关键词共现、作者、发文机构、突现等多个维度,旨在揭示中国绿色供应链管理研究的热点领域与前沿演进,为后续研究提供参考。主要的研究结论:(1)绿色供应链管理的研究自始至今已有一段时间,并呈逐渐增加的趋势,但在过去两年中有所减少,发文作者和机构之间的合作比较松散,因此仍需要加深对相关研究的数量、范围和层次的探讨。(2)在低碳经济的时代背景下,学者们广泛而深刻地研究了企业在绿色供应链管理中应承担的社会责任以及相关的绿色生产和逆向供应链策略。(3)中小企业绿色供应链的建立以及绿色发展和绿色创新是共同关注的最新发展趋势。

关键词：绿色供应链管理 CiteSpace 科学知识图谱可视化分析

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缺氧诱导因子与糖尿病肾脏疾病的研究进展

临床肾脏病杂志 2024年第2期24卷 151-154页

作者：马也娉李忠心首都医科大学附属北京潞河医院肾病中心北京101100

糖尿病肾脏疾病(diabetic kidney disease,DKD)是糖尿病患者最常见的微血管并发症之一,也是终末期肾病的主要病因之一。DKD发病机制复杂,目前尚未阐明。近期的研究显示肾内缺氧是DKD发生、发展的核心致病机制。缺氧诱导因子(hypoxia ind... 详细信息

糖尿病肾脏疾病(diabetic kidney disease,DKD)是糖尿病患者最常见的微血管并发症之一,也是终末期肾病的主要病因之一。DKD发病机制复杂,目前尚未阐明。近期的研究显示肾内缺氧是DKD发生、发展的核心致病机制。缺氧诱导因子(hypoxia inducible factor,HIF)是对缺氧的适应性反应的主要调节因子。HIF作为重要的核转录因子,通过调控下游功能基因的表达,参与细胞能量代谢、红细胞生成和新生血管生成,对缺氧做出应答。HIF脯氨酰羟化酶抑制剂作为HIF稳定剂可抑制HIF降解,可能具有潜在的肾脏保护作用。在此,我们对目前HIF与DKD的研究进展进行综述,并探讨HIF稳定剂在DKD中的应用前景。

关键词：缺氧诱导因子糖尿病肾病缺氧诱导因子稳定剂

DBU/碘化锂双催化体系催化三亚甲基碳酸酯开环均聚合

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西北师范大学学报（自然科学版） 2024年第2期60卷 71-76页

作者：王艳肖慧萍马叶群山西师范大学分析测试中心山西太原030031 吉林省长春生态环境监测中心吉林长春130012 山西师范大学化学与材料科学学院山西太原030031

以1,8-二氮杂二环[5.4.0]十一碳-7-烯(DBU)/碘化锂(LiI)为双催化剂,苯甲醇(BnOH)协同催化单体三亚甲基碳酸酯(TMC)开环均聚合,得到产物聚三亚甲基碳酸酯(PTMC).反应的最优条件为:二氯甲烷为溶剂,[TMC]=1.0 mol·L^(-1),[TMC]/[DBU]/[LiI... 详细信息

以1,8-二氮杂二环[5.4.0]十一碳-7-烯(DBU)/碘化锂(LiI)为双催化剂,苯甲醇(BnOH)协同催化单体三亚甲基碳酸酯(TMC)开环均聚合,得到产物聚三亚甲基碳酸酯(PTMC).反应的最优条件为:二氯甲烷为溶剂,[TMC]=1.0 mol·L^(-1),[TMC]/[DBU]/[LiI]/[BnOH]=200∶1∶1∶1,25℃下反应45 min,所得PTMC的产率为97.7%,数均分子量为20.4 kg·mol^(-1),分子量分布为***热分析结果表明,PTMC没有熔融峰和结晶峰,说明PTMC为一种无定形聚合物.利用1HNMR和IR对PTMC结构进行端基分析,并推测聚合机理为“单体-活化”机理.

关键词： DBU 碘化锂聚三亚甲基碳酸酯开环聚合

Anodal Transcranial Direct-Current Stimulation Over the Right Dorsolateral Prefrontal Cortex Influences Emotional Face Perception

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Neuroscience Bulletin 2018年第5期34卷 842-848页

作者： Li-Chuan Yang Ping Ren Yuan-ye ma Laboratory of Brain and Cognition Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China State Key Laboratory of Brain and Cognition Institute of Biophysics Chinese Academy of Sciences Beijing 100101 China University of the Chinese Academy of Sciences Bei- jing 100049 China School of Nursing University of Rochester Medical Center Rochester NY 14642 USA

The dorsolateral prefrontal cortex （DLPFC） is considered to play a crucial role in many high-level functions, such as cognitive control and emotional regula- tion. many studies have reported that the DLPFC can be activated during the processing of emotional information in tasks requiring working memory. However, it is still not clear whether modulating the activity of the DLPFC influences emotional perception in a detection task. In the present study, using transcranial direct-current stimulation （tDCS）, we investigated （I） whether modulating the right DLPFC influences emotional face processing in a detection task, and （2） whether the DLPFC plays equal roles in processing positive and negative emotional faces. The results showed that anodal tDCS over the right DLPFC specifically facilitated the perception of positive faces, but did not influence the processing of negative faces. In addition, anodal tDCS over the right primary visual cortex enhanced performance in the detection task regardless of emotional valence. Our findings suggest, for the first time,that modulating the right DLPFC influences emotional face perception, especially faces showing positive emotion.

关键词： tDCS Facial expression Emotion Dorso-lateral prefrontal cortex

Fabrication and analysis of nano-structured thermal spraying feeds

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中国有色金属学会会刊：英文版 2004年第z1期14卷 83-87页

作者： ye Xiong-lin ma Shi-ning LI Chang-qing National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China National Key Laboratory for Remanufacturing Academy of Armored Force Engineering Beijing 100072 China

A kind of thermal spray nanostructured Al2O3 and TiO2 feeds fabricating technology was *** nanogranules prepared by spray drying were heat treated in order to be dense, and there were two sintering technologies used, i.e. high temperature electric furnace sintering and high velocity flame sintering, respectively. The results indicate feeds phase components using high temperature electric furnace sintering at 1 200 ℃,1 300 ℃ and 1 400 ℃ do not change, and grain sizes of nano-Al2O3 and TiO2 grow little at 1 200 ℃ and 1 300 ℃,while grain sizes of nano-Al2O3 and TiO2 grow obviously, and the grain size of nano-TiO2 is larger than 100 nm at 1400 ℃. Phase components of the feeds using high velocity flame sintering change, where α-Al2O3 changes to γ-Al2O3 and rutile TiO2 changes to brookite TiO2, though grain size of nano-Al2O3 does not grow and is less than 100 nm because cooling velocity is too quick. Compared with these two heat treatment technology, the technology using electric furnace to treat nanostructured Al2O3 and TiO2 feeds is more suitable.

关键词： nanostructured feeds thermal spray heat treatment

Effectiveness of Scutellaria baicalensis Georgi root in pregnancy-related diseases:A review

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Journal of Integrative Medicine 2023年第1期21卷 17-25页

作者： Dan-na Fang Chang-wu Zheng ye-ling ma Medical College Shaoxing UniversityShaoxing 312000Zhejiang ProvinceChina

The root of Scutellaria baicalensis Georgi,also called Huangqin,is frequently used in traditional Chinese *** ancient China,*** root was used to clear heat,protect the fetus,and avoid a miscarriage for thousands of *** modern times,pregnancy-related diseases can seriously affect maternal and fetal health,but few systematic studies have explored the mechanisms and potential targets of *** root in the treatment of pregnancy-related ***(baicalein,wogonin and oroxylin A)and flavonoid glycosides(baicalin and wogonoside)are the main chemical components in the root of *** study presents the current understanding of the major chemical components in the root of ***,focusing on their traditional uses,potential therapeutic effects and ethnopharmacological relevance to pregnancy-related *** mechanisms,potential targets and experimental models of *** root for ameliorating pregnancy-related diseases,such as recurrent spontaneous abortion,preeclampsia,preterm birth,fetal growth restriction and gestational diabetes mellitus,are highlighted.

关键词： Scutellaria baicalensis Georgi Recurrent spontaneous abortion Preeclampsia Preterm birth Fetal growth restriction Gestational diabetes mellitus