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基于粒子群算法的纯电动商用车转矩分配策略

江苏大学学报（自然科学版） 2025年第1期46卷 1-8,27页

作者：田韶鹏方正武汉理工大学汽车工程学院湖北武汉430070

针对纯电动商用车采用双电动机驱动时存在的转矩分配问题,提出基于粒子群算法的模糊控制策略.首先在Simulink/Stateflow软件中搭建整车动力系统物理模型,以粒子群算法为基础,进行整车转矩分配.由于计算量大,无法运用于实车,故根据粒子... 详细信息

针对纯电动商用车采用双电动机驱动时存在的转矩分配问题,提出基于粒子群算法的模糊控制策略.首先在Simulink/Stateflow软件中搭建整车动力系统物理模型,以粒子群算法为基础,进行整车转矩分配.由于计算量大,无法运用于实车,故根据粒子群算法的结果,结合传统项目经验,设计一个参数实时调节模糊控制器来进行转矩分配.该方法运行速度快,且基本达到粒子群全局优化的效果.验证与分析结果表明:与原车单电动机动力系统相比,采用该方法的双电动机动力系统能量消耗减少了12.08%;在双电动机动力系统下,该方法与平均分配控制策略相比,电动机总能量损失降低了13.09%.

关键词：纯电动商用车双电动机驱动转矩分配粒子群算法模糊控制策略

Design and testing research of LiDAR for detecting atmospheric turbulence

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Optoelectronics Letters 2025年第3期21卷 172-176页

作者： QIU Duoyang LI Xianyang YANG Hao ZHU Xiaomeng fang Zhiyuan XU Xiang School of Advanced Manufacturing Engineering Hefei University Anhui Provincial Engineering Technology Research Center of Intelligent Vehicle Control and Integrated Design Technology Hefei University Science Island Branch of Graduate School University of Science and Technology of China School of Mechanical and Energy Engineering Ningbo Tech University Key Laboratory of Atmospheric Optics Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences

Atmospheric turbulence is an important parameter affecting laser atmospheric transmission. This paper reports on a self-developed atmospheric turbulence detection Li DAR system (scanning differential image motion Li DAR(DIM-Li DAR) system). By designing and simulating the optical system of atmospheric turbulence detection Li DAR,the basic optical imaging accuracy has been determined.

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Ni-catalyzed carbon–carbon bonds cleavage of mixed polyolefin plastics waste

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Journal of Energy Chemistry 2023年第10期85卷 562-569,I0014页

作者： xiaoqin Si Jiali Chen Zhengwei Wang Yue Hu Zhiwen Ren Rui Lu Lu Liu Jing Zhang Liwei Pan Rui Cai fang Lu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Research Center for Energy Strategy Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina College of Environmental and Chemical Engineering Dalian UniversityDalian 116622LiaoningChina

The inert carbon–carbon(C–C) bonds cleavage is a main bottleneck in the chemical upcycling of recalcitrant polyolefin plastics waste. Here we develop an efficient strategy to catalyze the complete cleavage of C–C bonds in mixed polyolefin plastics over non-noble metal catalysts under mild conditions. The nickelbased catalyst involving Ni_(2)Al_(3) phase enables the direct transformation of mixed polyolefin plastics into natural gas, and the gas carbon yield reaches up to 89.6%. Reaction pathway investigation reveals that natural gas comes from the stepwise catalytic cleavage of C–C bonds in polypropylene, and the catalyst prefers catalytic cleavage of terminal C–C bond in the side-chain with the low energy ***, our developed approach is evaluated by the technical economic analysis for an economically competitive production process.

关键词： Ni-based catalyst Mixed polyolefin plastics C–C bonds cleavage

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自媒体时代教师博主行为的失范与规范

教学与管理 2025年第2期 20-23页

作者：张婷李芳中国教育报刊社融媒体协调中心北京100080 北京师范大学中国教育与社会发展研究院北京100875

教师博主是自媒体时代的产物,在缺乏管理的情形下,教师的特殊身份引发了诸多争议,特别是基础教育学段的教师博主受到公众诸多批评,如教师形象过度功利化、利用学生赚取流量等。当前,基础教育学段教师博主的规范处于法律法规监管的真空地... 详细信息

教师博主是自媒体时代的产物,在缺乏管理的情形下,教师的特殊身份引发了诸多争议,特别是基础教育学段的教师博主受到公众诸多批评,如教师形象过度功利化、利用学生赚取流量等。当前,基础教育学段教师博主的规范处于法律法规监管的真空地带,存在上位管理文件缺失、教育部门监管难度大、跨部门协调监管难等问题。因此,急需加强立法与制度体系建设,为依法管理提供依据;持续推进师德师风建设,增强自我约束的内在动力;健全多渠道监督机制,构建规范行事的外部约束网络等,从而明晰教师博主的权责界限,发挥社交平台正向的育人功能。

关键词：教师博主网红教师基础教育教师师德师风

THE SPECTRAL RADIUS OF UNIFORM HYPERGRAPH DETERMINED BY THE SIGNLESS LAPLACIAN MATRIX

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数学杂志 2025年第1期45卷 1-12页

作者： HE fang-guo College of Mathematics and Statistics Huanggang Normal UniversityHuBei 438000

This paper studies the problem of the spectral radius of the uniform hypergraph determined by the signless Laplacian *** upper bound of the spectral radius of a uniform hypergraph is obtained by using Rayleigh principle and the perturbation of the spectral radius under moving the edge operation,and the extremal hypergraphs are characterized for both supertree and unicyclic *** spectral radius of the graph is generalized.

关键词： spectral radius uniform hypergraph Signless Laplasian matrix

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Phenotype,Physiology,and Gene Expression of Barley Seedlings in Response to Nano Zinc Oxide Stress

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Phyton-International Journal of Experimental Botany 2021年第6期90卷 1589-1598页

作者： Mengyuan Dong Rong Sun Qianhui Yang Lantian Zhang Yangying Yong Yunxia fang Xian Zhang xiaoqin Zhang Dawei Xue College of Life and Environmental Sciences Hangzhou Normal UniversityHangzhou310036China

In recent years,zinc oxide nanoparticles(ZnO NPs)have been widely used as zinc fertilizers and *** use of ZnO NPs in this way can provide benefits to humans,but also has potential *** NPs inevitably enter the environment during their production and use,which affects the ecological environment and crop *** order to investigate the phenotype,physiology,and gene expression of barley(Hordeum vulgare L.)seedlings under ZnO NPs stress,the barely cultivars ZJU3(P21),Golden Promise(GP)and L23 were chosen for *** ZnO NPs concentrations were applied to compare the physiological and biochemical indexes of the barley seedlings and the responses of six stress-related genes,when seedlings were cultured to the two-leaf stage through *** results showed that the density of brown spots on the leaf surface increased with increasing ZnO NPs *** NPs stress inhibited the root growth of barley seedlings,and P21 was the most ***,ZnO NPs stress could stimulate plants to produce a large number of reactive oxygen species(ROS),resulting in an imbalance between the production and removal of ROS and membrane lipid peroxidation in *** imbalance inhibited the growth and development of the barley *** increasing ZnO NPs concentration,the activity of superoxide dismutase was gradually increased,the activity of catalase was progressively decreased,and the contents of malondialdehyde and proline were *** with the control,among six stress-related genes,the expression levels of five genes were downregulated and one gene was upregulated in the experimental *** study preliminarily revealed the toxic effect of ZnO NPs on seedlings and the effect on the expression of stress-related resistance genes in different barley varieties.

关键词： Antioxidant enzymes barley seedlings reactive oxygen species gene expression zinc oxide nanoparticles

不同热处理蛋黄脂质对小鼠学习认知能力下降的缓解能力

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食品工业科技 2025年第1期46卷 367-376页

作者：吴瑶刘铭坤方冰张明合肥工业大学食品与生物工程学院安徽合肥230061 中国农业大学营养与健康系北京100083 北京工商大学食品与健康学院北京100048

为探讨不同温度处理下蛋黄脂质对小鼠学习认知能力下降的缓解能力的差异。本研究利用小鼠认知障碍模型,比较95℃(水浴30 min)和121℃(灭菌锅加热30 min)热处理蛋黄脂质组分改善小鼠学习认知能力的差异。研究结果表明,相较于121℃热处理... 详细信息

为探讨不同温度处理下蛋黄脂质对小鼠学习认知能力下降的缓解能力的差异。本研究利用小鼠认知障碍模型,比较95℃(水浴30 min)和121℃(灭菌锅加热30 min)热处理蛋黄脂质组分改善小鼠学习认知能力的差异。研究结果表明,相较于121℃热处理的蛋黄脂质,95℃热处理的蛋黄脂质更有效地降低了Tau蛋白的磷酸化和Aβ1-40、GSK-3β表达,下调了促炎因子的表达,其提升小鼠的学习记忆能力的效果更好。95℃热处理蛋黄脂质中的多不饱和脂肪酸以及DHA较121℃热处理的蛋黄脂质显著增加(P<0.05)。因此,过度的加热条件,会破坏蛋品中DHA等多不饱和脂肪酸,削弱蛋黄脂质的改善认知的生物活性。本研究为蛋制品的热加工工艺的优化提供参考依据。

关键词：蛋黄脂质热处理学习和记忆

Effects of Melatonin on Growth,Physiology and Gene Expression in Rice Seedlings Under Cadmium Stress

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Phyton-International Journal of Experimental Botany 2019年第2期88卷 91-100页

作者： Xiachen Lv Yunxia fang Lantian Zhang Weiyi Zhang Ling Xu Jingjin Han Bailing Jin Xian Zhang xiaoqin Zhang Dawei Xue College of Life and Environmental Sciences Hangzhou Normal UniversityHangzhou310036China Hangzhou Foreign Languages School Hangzhou310023China.

Melatonin(MLT)is a hormonal substance found in many organisms and can improve plant stress *** this study,the japonica rice variety Y32 and indica rice variety NJ6 were cultivated in hydroponics under different concentrations of CdCl2 at the two-leaf *** growth,physiological and biochemical responses of the seedlings and the expression of cadmium(Cd)-related genes under exogenous melatonin(MLT)treatment were *** results indicated that Cd stress destroyed the dynamic balance between reactive oxygen species(ROS)production and removal,resulting in ROS accumulation,membrane lipid peroxidation,and impaired growth and *** the application of exogenous MLT to rice seedlings,increases in plant biomass including both underground and above-ground areas were *** also scavenged the inhibition of superoxide dismutase(SOD)and peroxidase(POD)in a concentration dependent manner in response to Cd ***(CAT)activity and malondialdehyde(MDA)expression also decreased following MLT *** the six Cd-related genes assessed,five genes were downregulated and one was up-regulated in response to MLT *** together,these data demonstrate that MLT improves the resilience of rice seedlings at the biochemical,physiological,and molecular levels,and diminishes the damage caused by Cd stress.

关键词： Rice melatonin cadmium stress physiological and biochemical index gene expression

Multiple splicing types of OsRIX4,an RAD21 homolog in rice (Oryza sativa L.)

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Chinese Science Bulletin 2007年第11期52卷 1468-1474页

作者： DONG HaiTaoi GUO xiaoqin PEI YanXi DAI ChengEn fang YongQi TU QiChao ZHUANG JieYun ZHAO Dong ZHENG KangLe LI DeBao Bioinforrnatics and Gene Network Research Group Biotechnology Institute Zhejiang University Hangzhou 310029 China National Center for Rice Improvement China National Rice Research Institute Hangzhou 310006 China

The present paper describes multiple splicing types of OsRIX4,an RAD21 homolog in rice. A type of alternative splicing (AS),distinctive from all five previously known splicing types,was identified in which interior sequences of a constitutive exon could be spliced. Translation of the transcript produced with this AS type was demonstrated at the protein level. Expression of multiple transcripts was organ specific. The expression abundance of transcripts,OsRIX4-4 and OsRIX4-5,was positively correlated with fertility in rice. The splicing type identified in the present study provided the means to further un-derstand and define different mRNA splicing types in plants and suggested that post-transcription processing of mRNA and its regulation mechanism are complex.

关键词：信使核糖核酸多重叠加交替叠加性质