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科学发展观视域下高校毕业生就业指导工作研究

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教育教学研究前沿

教育教学研究前沿 2024年第3期2卷 13-16页

作者：陈浩文阮静昆明理工大学云南昆明650031

随着社会经济的不断发展和高等教育规模的不断扩大,高校毕业生就业问题日益凸显。科学发展观作为指导国家发展的理论指导,也应当贯彻到高校毕业生就业指导工作中,不仅能提高毕业生就业质量,促进社会和经济的可持续发展,也能为高校毕业... 详细信息

随着社会经济的不断发展和高等教育规模的不断扩大,高校毕业生就业问题日益凸显。科学发展观作为指导国家发展的理论指导,也应当贯彻到高校毕业生就业指导工作中,不仅能提高毕业生就业质量,促进社会和经济的可持续发展,也能为高校毕业生提供更好的发展机会。因而研究科学发展观视域下高校毕业生就业指导工作有重要的意义。对此,通过分析高校毕业生就业指导工作现状,进而探究科学发展观视域下创新高校毕业生就业指导工作的策略,以期为高校毕业生就业提供更加科学、有效的指导。

关键词：科学发展观高校毕业生就业指导工作

Integrating Conjugate Gradients Into Evolutionary Algorithms for Large-Scale Continuous Multi-Objective Optimization

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IEEE/CAA Journal of Automatica Sinica 2022年第10期9卷 1801-1817页

作者： Ye Tian haowen chen Haiping Ma Xingyi Zhang Kay chen Tan Yaochu Jin the Information Materials and Intelligent Sensing Laboratory of Anhui Province Institutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China the Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefei 230601China IEEE the Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education School of Artificial IntelligenceAnhui UniversityHefei 230601China the Department of Computing The Hong Kong Polytechnic UniversityHong Kong SARChina the Faculty of Technology Bielefeld UniversityBielefeld 33619Germany

Large-scale multi-objective optimization problems(LSMOPs)pose challenges to existing optimizers since a set of well-converged and diverse solutions should be found in huge search *** evolutionary algorithms are good at solving small-scale multi-objective optimization problems,they are criticized for low efficiency in converging to the optimums of *** contrast,mathematical programming methods offer fast convergence speed on large-scale single-objective optimization problems,but they have difficulties in finding diverse solutions for ***,how to integrate evolutionary algorithms with mathematical programming methods to solve LSMOPs remains *** this paper,a hybrid algorithm is tailored for LSMOPs by coupling differential evolution and a conjugate gradient *** the one hand,conjugate gradients and differential evolution are used to update different decision variables of a set of solutions,where the former drives the solutions to quickly converge towards the Pareto front and the latter promotes the diversity of the solutions to cover the whole Pareto *** the other hand,objective decomposition strategy of evolutionary multi-objective optimization is used to differentiate the conjugate gradients of solutions,and the line search strategy of mathematical programming is used to ensure the higher quality of each offspring than its *** comparison with state-of-the-art evolutionary algorithms,mathematical programming methods,and hybrid algorithms,the proposed algorithm exhibits better convergence and diversity performance on a variety of benchmark and real-world LSMOPs.

关键词： Conjugate gradient differential evolution evolutionary computation large-scale multi-objective optimization mathematical programming

“Buckets effect”in the kinetics of electrocatalytic reactions

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Journal of Energy Chemistry 2024年第2期89卷 388-396,I0010页

作者： haowen Cui Yan-Xia chen Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026AnhuiChina

In this study,we systematically investigated the effect of proton concentration on the kinetics of the oxygen reduction reaction(ORR)on Pt(111)in acidic *** results demonstrate a rectangular hyperbolic relationship,i.e.,the ORR current excluding the effect of other variables increases with proton concentration and then tends to a constant *** consider that this is caused by the limitation of ORR kinetics by the trace oxygen concentration in the solution,which determines the upper limit of ORR kinetics.A model of effective concentration is further proposed for rectangular hyperbolic relationships:when the reactant concentration is high enough to reach a critical saturation concentration,the effective reactant concentration will become a constant *** could be due to the limited concentration of a certain reactant for reactions involving more than one reactant or the limited number of active sites available on the *** study provides new insights into the kinetics of electrocatalytic reactions,and it is important for the proper evaluation of catalyst activity and the study of structureperformance relationships.

关键词： Oxygen reduction reaction Kinetics Zero order Rectangular hyperbolic relationship pH effect

Deciphering the linear relationship in the activity of the oxygen reduction reaction on Pt electrodes:A decisive role of adsorbates

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Journal of Energy Chemistry 2024年第7期94卷 70-77页

作者： haowen Cui Yan-Xia chen Hefei National Research Center for Physical Sciences at Microscale and Department of Chemical Physics University of Science and Technology of ChinaHefei 230026AnhuiChina

Despite substantial efforts in developing high-performance catalysts for the oxygen reduction reaction(ORR),the persistent challenge lies in the high onset overpotential of the ORR,and the effect of the elec-trolyte solution cannot be ***,we have systematically investigated the impact of adsorbate species and concentration,as well as solution pH,on the ORR activity on Pt(111)and Pt(poly)*** results all tend to establish a linear quantitative relationship between the onset potential for ORR and the adsorption equilibrium potential of the *** finding indicates the decisive role of adsorbates in the onset potential for ORR,suggesting that the adsorption potential of adsorbates can serve as an intuitive criterion for ORR *** support for this conclusion is derived from experimental results obtained from the oxygen evolution reaction on Pt(poly)with different adsorbate species and from the hydrogen evolution reaction on Pt(111)with iodine *** further propose both an empirical equation for the onset potential for ORR and the concept of a potential-regulated adsor-bate shielding effect to elucidate the influence of adsorbates on ORR *** study provides new insights into the high onset overpotential of the ORR and offers potential strategies for predicting and enhancingORRactivity inthefuture.

关键词： Oxygen reduction reaction Activity Adsorbate Equilibrium potential Pt(111)

Unraveling the complex roles of macrophages in obese adipose tissue:an overview

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Frontiers of Medicine 2024年第2期18卷 205-236页

作者： Chang Peng Jun chen Rui Wu haowen Jiang Jia Li Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou310000China State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai201203China University of Chinese Academy of Sciences Beijing100049China Department of Prosthodontics Shanghai Engineering Research Center of Advanced Dental Technology and MaterialsShanghai Key Laboratory of Stomatology&Shanghai Research Institute of StomatologyNational Clinical Research Center for Oral DiseasesShanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghai200011China

Macrophages,a heterogeneous population of innate immune cells,exhibit remarkable plasticity and play pivotal roles in coordinating immune responses and maintaining tissue homeostasis within the context of metabolic *** activation of inflammatory macrophages in obese adipose tissue leads to detrimental effects,inducing insulin resistance through increased inflammation,impaired thermogenesis,and adipose tissue ***,adipose tissue macrophages also play a beneficial role in maintaining adipose tissue homeostasis by regulating angiogenesis,facilitating the clearance of dead adipocytes,and promoting mitochondrial *** the heterogeneity of macrophages in obese adipose tissue is crucial for unraveling the pathogenesis of obesity and holds significant potential for targeted therapeutic ***,the dual effects and some potential regulatory mechanisms of macrophages in adipose tissue have been elucidated using single-cell *** this review,we present a comprehensive overview of the intricate activation mechanisms and diverse functions of macrophages in adipose tissue during obesity,as well as explore the potential of drug delivery systems targeting macrophages,aiming to enhance the understanding of current regulatory mechanisms that may be potentially targeted for treating obesity or metabolic diseases.

关键词： obesity inflammation adipose tissue macrophages adipose tissue homeostasis

Extended ambiguity function for bistatic MIMO radar

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Journal of Systems Engineering and Electronics 2012年第2期23卷 195-200页

作者： haowen chen Yiping chen Zhaocheng Yang Xiang Li Institute of Space Electronic Information Technology School of Electronic Science and EngineeringNational University of Defense TechnologyChangsha 410073P.R.China

This paper derives the extended ambiguity function for a bistatic multiple-input multiple-output （MIMO） radar system, which includes the whole radar system parameters： geometric sensor configuration, waveforms, range, range rate, target scattering and noise characteristics. Recent research indicates the potential pa- rameter estimate performance of bistatic MIMO radars. And this ambiguity function can be used to analyze the parameter estimate performance for the relationship with the Cramer-Rao bounds of the estimated parameters. Finally, some examples are given to demonstrate the good parameter estimate performance of the bistatic MIMO radar, using the quasi-orthogonal waveforms based on Lorenz chaotic systems.

关键词： bistatic multiple-input multiple-output (MIMO) radar ambiguity function parameter estimate Cramer-Rao bound (CRB) quasi-orthogonal waveforms.

不同外源激素对鲜草果种子萌发和幼苗生长的影响

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云南农业大学学报（自然科学版） 2024年第2期39卷 93-100页

作者：苏俊宇朱树明陈浩文黄荣梅胡一凡杨志清范源洪云南农业大学农学与生物技术学院云南昆明650201 云南省高原特色农业产业研究院云南昆明650201

【目的】解决草果种子休眠期与育苗周期长、幼苗生长缓慢等问题。【方法】采用不同外源激素处理鲜草果种子,探究不同外源激素对种子萌发和幼苗生长的影响。【结果】50 mg/L生长素(IAA)、200 mg/L赤霉素(GA3)、10 mg/L 2,4-二氯苯氧乙酸(... 详细信息

【目的】解决草果种子休眠期与育苗周期长、幼苗生长缓慢等问题。【方法】采用不同外源激素处理鲜草果种子,探究不同外源激素对种子萌发和幼苗生长的影响。【结果】50 mg/L生长素(IAA)、200 mg/L赤霉素(GA3)、10 mg/L 2,4-二氯苯氧乙酸(2,4-D)处理均能有效降低鲜草果种子发芽启动时间,提高种子发芽指数,促进种子萌发;萌发出的幼苗长势更好,生物量更高。其中,50 mg/L IAA浸种处理后发芽启动时间最短(55 d),发芽率(57%)与发芽指数(0.86)最高,萌发出的幼苗长势好,可溶性糖、可溶性淀粉和可溶性蛋白质含量以及过氧化物酶活性均高于其他处理。10 mg/L 2,4-D和10 mg/L 6-苄氨基嘌呤(6-BA)处理鲜草果种子可改变幼苗生物量分配,根冠比接近1∶2。【结论】本研究揭示了不同外源激素对鲜草果种子萌发和幼苗生长的影响,为草果良种繁育奠定了一定的基础。

关键词：草果外源激素种子萌发幼苗生长

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Antenna geometry strategy with prior information for direction-finding MIMO radars

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Journal of Systems Engineering and Electronics 2015年第3期26卷 468-475页

作者： Weidong Jiang haowen chen Xiang Li College of Electronics Science and Engineering National University of Defense Technology

The antenna geometry strategy for direction finding （DF） with multiple-input multiple-output （MIMO） radars is studied. One case, usually encountered is practical applications, is consi- dered. For a directional antenna geometry with a prior direction, the trace-optimal （TO） criterion （minimizing the trace） on the av- erage Cramer-Rao bound （CRB） matrix is employed. A qualitative explanation for antenna geometry is provided, which is a combi- natorial optimization problem. In the numerical example section, it is shown that the antenna geometries, designed by the proposed strategy, outperform the representative DF antenna geometries.

关键词： multiple-input multiple-output (MIMO) radar direction finding (DF) antenna geometry strategy Cramer-Rao bound(CRB) trace-optimal (TO) simulated annealing (SA) algorithm.

Development of piezoelectric energy-harvesting tuned mass damper

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中国科学：技术科学英文版 2017年第3期60卷 467-478页

作者： PAN Peng ZHANG DongBin NIE Xin chen haowen Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry Tsinghua University Beijing 100084 China Department of Civil Engineering Tsinghua University Beijing 100084 China

Tuned mass dampers(TMDs)are one of the most widely used devices to mitigate vibrations in ***,in conventional TMDs,viscous dampers convert the energy of vibration into heat.A new type of TMDs,called regenerative TMDs。

关键词： piezoelectric tuned mass damper regenerative vibration control energy harvesting