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混合动力矿用卡车节能协同优化及最优实时控制综合研究

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机械传动 2024年第7期48卷 30-39页

作者：李洪亮张国靖樊平内蒙古科技大学矿业与煤炭学院内蒙古包头014010 内蒙古自治区矿业工程重点实验室内蒙古包头014010 内蒙古自治区煤炭安全开采与利用工程技术研究中心内蒙古包头014010 内蒙古煤炭绿色开采与绿色利用协同创新中心内蒙古包头014010

混合动力汽车的燃油经济性很大程度上取决于系统的传动系参数和能量管理策略。然而,针对传动系参数和能量管理策略对燃油经济性优化存在交互影响的问题,以及能量管理策略实时性和全局最优性难以兼顾的问题,尚缺乏一套行之有效的实现方... 详细信息

混合动力汽车的燃油经济性很大程度上取决于系统的传动系参数和能量管理策略。然而,针对传动系参数和能量管理策略对燃油经济性优化存在交互影响的问题,以及能量管理策略实时性和全局最优性难以兼顾的问题,尚缺乏一套行之有效的实现方法。为此,以混合动力矿用卡车为研究对象,建立整车数学模型,以减少燃油消耗为目标,建立了综合考虑传动系参数与能量管理策略交互作用的协同优化模型;联合粒子群优化(Particle Swarm Optimization,PSO)算法和动态规划(Dynamic Programming,DP)算法构建双层交互式优化算法进行求解,以消除传动系参数和能量管理策略之间的交互效应,实现在对传动系参数最优化的同时完成最优能量分配。在此基础上,针对DP算法难以实现在线控制的问题,对最优传动系参数对应的DP能量管理最优解进行整合,设计了一种有效提取DP最优控制规则的方法,建立了基于最优控制规则的能量管理策略,以此来实现混合动力矿用卡车的在线控制。依据建立的传动系参数和能量管理策略协同优化及最优能量管理实时控制策略的一体化实现方法,将获得的最优传动系参数和对应的最优能量管理实时控制策略一同在Stateflow-AMESim联合仿真平台上进行仿真验证。结果表明,该方法所得到的燃油消耗结果优于单独的DP优化结果,并且与PSO-DP优化得到的结果接近程度较高,表明了该优化方法是有效、可行的。

关键词：混合动力矿用卡车传动系参数能量管理策略燃油经济性协同优化

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五大连池月牙泡沉积物中趋磁细菌群落对季节变化的响应

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黑龙江八一农垦大学学报 2024年第2期36卷 90-96页

作者：张国静杨孟然郑安旺张爽晏磊黑龙江八一农垦大学生命科学技术学院大庆163319

为了解五大连池月牙泡样品中趋磁细菌(Magnetotactic Bacteria,MTB)多样性对季节动态的响应。采用高通量测序手段,分别考察不同季节月牙泡中MTB的Alpha多样性、群落组成、群落功能及多样性与理化的相关性。结果显示,MTB菌群丰度在夏季... 详细信息

为了解五大连池月牙泡样品中趋磁细菌(Magnetotactic Bacteria,MTB)多样性对季节动态的响应。采用高通量测序手段,分别考察不同季节月牙泡中MTB的Alpha多样性、群落组成、群落功能及多样性与理化的相关性。结果显示,MTB菌群丰度在夏季和秋季较高,春季和秋季较低。春季样品中仅有Magnetospirillum,Magnetospirillum在秋季(73.42%)和冬季(98.36%)是优势菌属,Magnetovibrio为夏季(29.76%)的优势菌属。RDA表明,大部分MTB分布与Fe(Ⅱ)、S和Sulfate呈正相关。研究结果为火山湖泊中MTB对季节动态响应提供了依据。

关键词：五大连池月牙泡系统发育多样性趋磁细菌季节变化

Causes and statistical characteristics of bridge failures:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第3期9卷 388-406页

作者： guojing zhang Yongjian Liu Jiang Liu Shiyong Lan Jian Yang School of Highway Chang'an UniversityXian 710064China Research Center of Highway Large Structure Engineering on Safety of Ministry of Education Chang'an UniversityXi'an 710064China AECOM New YorkNY 10158USA

Bridge failure, which is generally associated with serious economic and life losses, is defined as the incapacity of a constructed bridge or its components to perform as specified in the design and construction requirements. This paper presents an overview of current researches on the typical characteristics and causes of bridge failures based on 10 former investigations. Principal causes can be divided into internal causes and external causes or natural factors and human factors. Design error, construction mistakes, hydraulic, collision, and overload are the top 5 leading causes of bridge failures, resulting in more than70% of the bridge failures. Causes of bridge failures are closely related to regional economy,structural type, type of use, material type, and service age. The failure rate is very high for steel bridges, which is inseparable from excessive emphasis on structure strength but lack of consideration on structure stability and fatigue in early years. Researchers need to strengthen their research on the stability and fatigue of steel bridges, as well as inspection and maintenance. Extreme loads such as flood, collision, and overload contribute to a large number of bridge failures because of the lack of extreme loads data and design theory defects. It is critical for such bridges to have sufficient redundancy and capacity protection measures to reduce the probability of bridge failure due to extreme loads. Previous statistical methods and classification methods for the characteristics and causes of bridge failures lack unified standards, and a more scientific method needs to be established. A comprehensive electronic database on bridge damage and failures needs to be developed to establish damage models and conduct forensic studies to improve the design theory and specifications.

关键词： Bridge engineering Bridge failure Statistical characteristic Failure cause Case study

THE SEPARATION OF Pb-Sb ALLOYS BY VACUUM DISTILLATION

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Transactions of Nonferrous Metals Society of China 1991年第1期1卷 44-49,60页

作者： Dai Yongnian zhang guojing Kunming Institute of Technology Kunming 656093China

This paper summarizes the research results of vacuum distillation of Pb-Sb alloy and crude *** our study,we have found the basic law which states that in Pb-Sb phase diagrams,the part which is rich in lead can be used to guide the purification of lead by distillation,while the part rich in antimony can be used to guide the purification of *** the compositional point C is the azeotropic *** technical experi-mental results at temperatures between 7OO-85OC are coincident with those of theorical *** expanding experiment at the 100kg scale produced satisfactory results.

关键词： Pb-Sb alloy vacuum distillation separation coefficient

Frontogenesis and Frontolysis of a Cold Filament Driven by the Cross-Filament Wind and Wave Fields Simulated by a Large Eddy Simulation

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Advances in Atmospheric Sciences 2024年第3期41卷 509-528页

作者： guojing LI Dongxiao WANG Changming DONG Jiayi PAN Yeqiang SHU Zhenqiu zhang State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Shool of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 210044China School of Geography and Environment Jiangxi Normal UniversityNanchang 330022China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China

The variations of the frontogenetic trend of a cold filament induced by the cross-filament wind and wave fields are studied by a non-hydrostatic large eddy simulation. Five cases with different strengths of wind and wave fields are *** results show that the intense wind and wave fields further break the symmetries of submesoscale flow fields and suppress the levels of filament frontogenesis. The changes of secondary circulation directions—that is, the conversion between the convergence and divergence of the surface cross-filament currents with the downwelling and upwelling jets in the filament center—are associated with the inertial oscillation. The filament frontogenesis and frontolysis caused by the changes of secondary circulation directions may periodically sharpen and smooth the gradient of submesoscale flow *** lifecycle of the cold filament may include multiple stages of filament frontogenesis and frontolysis.

关键词： cold filament frontogenesis frontolysis large eddy simulation

Halomonas Xiaochaidanensis sp. nov.,a Halotolerant Bacterium Isolated from Xiaochaidan Lake of Qadam Basin,China

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 89-90页

作者： LIU Wen JIANG Hongchen YANG Jian WU Geng zhang guojing State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences

A short-rod-shaped halotolerant bacterium,designated CUG00002T,was isolated from the sediment of Xiaochaidan Lake of Qadam Basin,China,using R2A *** cells are Gram-negative,aerobic and forming creamy and circular colo... 详细信息

关键词： Halomonas xiaochaidanensis sp.nov. Gram-negative Halotolerant

Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses

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Plant Diversity 2024年第1期46卷 116-125页

作者： Jingxiong zhang Shalan Li Wenxing Li Zerui Feng Shuhan zhang Xijie Zheng Yuxing Xu guojing Shen Man Zhao Guoyan Cao Xuna Wu Jianqiang Wu Department of Economic Plants and Biotechnology Yunnan Key Laboratory for Wild Plant ResourcesKunming Institute of BotanyChinese Academy of SciencesKunming 650201China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan and Center for Life Science School of Life SciencesYunnan UniversityKunming 650500China

Parasitic plants and their hosts communicate through haustorial *** deficiency is a common stress for plants,yet little is known about whether and how host plants and parasites communicate during adaptation to such nutrient *** this study,we used transcriptomics and proteomics to analyze how soybean(Glycine max)and its parasitizing dodder(Cuscuta australis)respond to nitrate and phosphate deficiency(-N and-P).After-N and-P treatment,the soybean and dodder plants exhibited substantial changes of transcriptome and proteome,although soybean plants showed very few transcriptional responses to-P and dodder did not show any transcriptional changes to either-N ***,large-scale interplant transport of mRNAs and proteins was *** the mobile mRNAs only comprised at most 0.2%of the transcriptomes,the foreign mobile proteins could reach 6.8%of the total proteins,suggesting that proteins may be the major forms of interplant ***,the interplant mobility of macromolecules was specifically affected by the nutrient regimes and the transport of these macromolecules was very likely independently *** study provides new insight into the communication between host plants and parasites under stress conditions.

关键词： Cuscuta Mobile molecules Nutrient deficiency Host plant-parasitic plant interaction Interplant transport Systemic signaling

Diversity of the T4-like Myoviruses Community in Response to Salinity in Saline Lakes of the Qinghai-Tibetan Plateau

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 114-115页

作者： WU Geng GUO Qinggong JIANG Hongchen YANG Jian GUO Feng LIU Wen zhang guojing DONG Hailiang State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences School of Life Science Wuhan University

1 Introduction Viruses are the most abundant biological entities on *** can influence the succession of individual microbial populations,biogeochemical cycles of C/N and,ultimately,microbial community structure throug... 详细信息

关键词： T4-like bacteriophages major capsid gene(g23) saline lake Qinghai-Tibet Plateau.

康德著作英译文本的特点分析与汉语误译——与何兆武先生商榷

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世界哲学 2011年第1期 143-149页

作者：张国敬天津外国语大学

康德《启蒙之我见》的英译本以其普世性、严肃性、抽象性、逻辑性、思辨性为显著特征,但其汉译本中,这些特点不但未得到体现,有些地方语义表达也显得晦涩难懂,甚至不知所云。本文以实例分析为手段总结了造成误译、错译的原因;结合哲学... 详细信息

康德《启蒙之我见》的英译本以其普世性、严肃性、抽象性、逻辑性、思辨性为显著特征,但其汉译本中,这些特点不但未得到体现,有些地方语义表达也显得晦涩难懂,甚至不知所云。本文以实例分析为手段总结了造成误译、错译的原因;结合哲学文本内容与形式的翻译特点,比较与其它文体翻译的异同,从理解和表达两个层面阐明观点,并提出一些解决方法。

关键词：哲学翻译理解表达误译