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进口集装箱堆场箱位分配与场桥调度协同优化

吉林大学学报（工学版） 2024年第5期54卷 1347-1354页

作者：朱瑾刘洋上海海事大学物流科学与工程研究院上海201306

针对场桥作业均衡和效率问题,设计了分时段平衡策略(TPBS),考虑了场桥之间作业安全距离和堆场容量的约束,建立了一个混合整数规划模型,以最大限度地减少双场桥的作业量方差和作业总时间,为了求解建立的模型并分析算例,开发了模拟退火遗... 详细信息

针对场桥作业均衡和效率问题,设计了分时段平衡策略(TPBS),考虑了场桥之间作业安全距离和堆场容量的约束,建立了一个混合整数规划模型,以最大限度地减少双场桥的作业量方差和作业总时间,为了求解建立的模型并分析算例,开发了模拟退火遗传算法(SAGA)。通过不同算法对比实验和3种平衡策略在集装箱数量为80~500个时的对比实验及分析,实验结果表明:SAGA对比于GA和SA的目标值分别平均降低7.32%、20.66%,分时段平衡策略可以均衡场桥作业任务量,缩短集装箱装卸任务的完成时间,有效地提高了堆场空间的利用率,并有助于提高场桥的整体作业效率。

关键词：分时段平衡策略箱位分配场桥调度混合整数规划模型模拟退火遗传算法

Hydrogen-bonded organic framework modified separator for simultaneously enhancing the safety and electrochemical performance of Ni-rich lithium-ion battery

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Journal of Energy Chemistry 2024年第9期96卷 72-78页

作者： Chengyu Han Yu Cao Ming yang Yuhan Wang Di Tang Shaojie Zhang Yiran Jia Yiming Zhang Hern Kim Fusheng Pan Zhongyi Jiang Jie Sun Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Science and Technology on Power Sources Laboratory Tianjin Institute of Power SourcesTianjin 300384China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Quzhou Institute for Innovation in Resource Chemical Engineering Quzhou 324000ZhejiangChina Department of Energy Science and Technology Director Environmental Waste Recycle InstituteYongin 17058Republic of Korea School of Chemistry and Chemical Engineering Hainan UniversityHaikou 570228HainanChina

Nickel-rich layered oxide cathode(LiNi_(x)Co_(y)Mn_(1−x−y)O_(2),x>0.5,NCM)shows substantial potential for applications in longer-range electrical ***,the rapid capacity decay and serious safety concerns impede its practical *** work provides a hydrogen-bonded organic framework(HOF)modification strategy to simultaneously improve the electrochemical performance,thermal stability and incombustibility of *** cyanurate(MCA),as a low-cost and reliable flame-retardant HOF,was implemented in the separator modification layer,which can prevent the battery short circuit even at a high *** addition,the supermolecule properties of MCA provide unique physical and chemical microenvironment for regulating ion-transport behavior in *** MCA coating layer enabled the nickel-rich layered oxide cathode with a high-capacity retention of 90.3%after 300 cycles at 1.0 ***,the usage of MCA in lithium-ion batteries(LIBs)affords a simple,low-cost and efficient strategy to improve the security and service life of nickel-rich layered cathodes.

关键词： Hydrogen-bonded organic framework Modified separator Ni-richlayered oxide cathode Thermal runaway Li^(+)transference number

Recent Advances in Fault Diagnosis Techniques for Photovoltaic Systems:a Critical Review

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Protection and Control of Modern Power Systems 2024年第3期9卷 36-59页

作者： Bo yang Ruyi Zheng Yiming Han Jianxiang Huang Miwei Li Hongchun Shu Shi Su Zhengxun Guo the School of Electrical Engineering Kunming University of Science and TechnologyKunmingChina Kunming University of Science and Technology KunmingChina the School of Faculty of Electric Power Engineering Kunming University of Science and TechnologyKunming 650500China the Kunming Bureau of CSG EHV Transmission Company KunmingChina the Power Science Research Institute of Yunnan Power Grid Co. LtdKunmingChina

If a failure in the components of a photovoltaic(PV)system,such as PV module,controller,inverter,load,cable,*** undetected and uncorrected,it can seriously affect the efficiency,safety,and reliability of the entire PV power *** addition,fires can occur if specific faults,such as arc,ground,and line-to-line faults remain ***,PV system(PVS)fault diagnoses are crucial for PV power plant reliability,efficiency,and *** fault diagnosis methods and techniques for PVS components have been *** addition,with the development of PV devices,more advanced and intelligent diagnostic technologies are continuously being researched and ***,a systematic and thorough analysis,summary,and conclusion are still urgently ***,this paper introduces the types,causes,and impacts of PVS faults,and reviews and discusses the methods proposed in the literature for PVS fault diagnosis,and in particular,failures in PV *** attention is paid to the optimization direction of various fault diagnosis methods under different priorities,and their limitations,feasibility,complexity,and ***,challenges and suggestions are put forward for future research.

关键词： PVS monitoring system PV fault types PV diagnosis review.

Discovery of TK-642 as a highly potent,selective,orally bioavailable pyrazolopyrazine-based allosteric SHP2 inhibitor

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Acta Pharmaceutica Sinica B 2024年第8期14卷 3624-3642页

作者： Kai Tang Shu Wang Siqi Feng Xinyu yang Yueyang Guo Xiangli Ren Linyue Bai Bin Yu Hong-Min Liu Yihui Song School of Pharmaceutical Sciences&Key Laboratory of Advanced Drug Preparation Technologies Ministry of EducationZhengzhou UniversityZhengzhou 450001China College of Chemistry Pingyuan LaboratoryState Key Laboratory of Antiviral DrugsZhengzhou UniversityZhengzhou 450001China Tianjian Laboratory of Advanced Biomedical Sciences Institute of Advanced Biomedical SciencesZhengzhou UniversityZhengzhou 450000China State Key Laboratory of Pharmaceutical Biotechnology Nanjing UniversityNanjing 210023China

Src homology-2-containing protein tyrosine phosphatase 2(SHP2)is a promising therapeutic target for cancer *** this work,we presented the structure-guided design of 5,6-fused bicyclic allosteric SHP2 inhibitors,leading to the identification of pyrazolopyrazine-based TK-642 as a highly potent,selective,orally bioavailable allosteric SHP2 inhibitor(SHP2WT IC_(50)=2.7 nmol/L)with favorable pharmacokinetic profiles(F=42.5%;t_(1/2)=2.47 h).Both dual inhibition biochemical assay and docking analysis indicated that TK-642 likely bound to the“tunnel”allosteric site of ***-642 could effectively suppress cell proliferation(KYSE-520 cells IC_(50)=5.73μmol/L)and induce apoptosis in esophageal cancer cells by targeting the SHP2-mediated AKT and ERK signaling ***,oral administration of TK-642 also demonstrated effective anti-tumor effects in the KYSE-520 xenograft mouse model,with a T/C value of 83.69%.Collectively,TK-642 may warrant further investigation as a promising lead compound for the treatment of esophageal cancer.

关键词： Protein tyrosine phosphatase Pyrazolopyrazine SHP2 inhibitor Esophageal cancer

Sedimentary dynamics and depositional model for mud accumulation in deep lake basins:A case study in the Upper Triassic Chang-7 Member, Ordos Basin, northern China

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Journal of Palaeogeography 2024年第4期13卷 775-792页

作者： Wei Yu Feng Wang Jing-Chun Tian Jiao Wang Benjamin Kneller Tian yang Wei-Zhen Chen College of Petroleum Engineering Shandong Institute of Petroleum and Chemical Technology Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources Chengdu University of Technology Institute of Sedimentary Geology Chengdu University of Technology University of Aberdeen School of Geoscience

Shales in deep lake basins have become the main focus of continental shale oil and gas exploration. In order to highlight the sedimentary dynamics of mud deposition in deep lake basins, a combination of core observation, thin section examination, X-ray diffraction, and QEMSCAN(quantitative evaluation of minerals by scanning electron microscopy) was used to analyze the depositional characteristics of mudrocks in the Chang-7 Member from the Yanchang Formation(Upper Triassic) in Ordos Basin, and to establish a depositional model for mud accumulation in deep lake basins. This study recognizes four mudrock lithofacies in the Chang-7 Member:(1) the laminated silt-bearing mudstone, which generally develops a binary composition of“silt-clay” or a ternary composition of “silt-clay-organic matter”;(2) the graded mudstone, mainly composed of dark gray and gray-black mudstone sandwiched by silt-bearing mudstone;(3) the massive mudstone, internally showing a uniform distribution of quartz, clay, and carbonate minerals, with also a small amount of organic detritus; and(4) the laminated shale, which is generally composed of clay laminae, and organic laminae of the former two. Sediment supply, topographic slope, and flood intensity combine to control the evolution of gravity flows and the transport and deposition of the mudrock in the Chang-7 Member. The influence of orogeny provides terrain gradient, water depth, abundant sediments at source areas, and triggering mechanism for the formation of gravity flows. Floods triggered by wetting events provide the impetus for sediment transport. Mud deposition in the Chang-7 Member was mainly related to the transport and sedimentation of mud by hyperpycnal flows and rapid sedimentation by buoyant plume flocculation. A comprehensive evolutionary model for shale accumulation in the deep lake basin is established by integrating various triggering mechanisms and mud transport sedimentary processes.

关键词： Mudrock Sedimentary dynamics mechanism Depositional model Chang-7 Member Depression lake basin

Core-shell nanoparticle enhanced Raman spectroscopy in situ probing the composition and evolution of interfacial species on PtCo surfaces

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Nano Research 2024年第6期17卷 4687-4692页

作者： Jing Liu Han-Liang Zhong Xiangyu Li Mu-Fei Yue Wei-Min yang Xueqiu You Jing-Hua Tian Yao-Hui Wang Jian-Feng Li Fujian Provincial Key Laboratory of Oceanic Information Perception and Intelligent Processing School of Ocean Information EngineeringJimei UniversityXiamen 361021China College of Chemistry Fuzhou UniversityFuzhou 350108China State Key Laboratory of Physical Chemistry of Solid Surfaces MOE Key Laboratory of Spectrochemical Analysis and InstrumentationiChEMCollege of Chemistry and Chemical EngineeringCollege of MaterialsCollege of EnergyXiamen UniversityXiamen 361005China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China Shenzhen Research Institute of Xiamen University Shenzhen 518000China

The composition and evolution of interfacial species play a key role during electrocatalytic *** the structural evolution and intermediate during catalytic process by in situ characterization can shed new light on the electrocatalytic reaction mechanism and develop highly efficient ***,directly probing the interfacial species is extremely difficult for most spectroscopic techniques due to complicated interfacial environment and ultra-low surface ***,electrochemical core-shell nanoparticle enhanced Raman spectroscopy is utilized to probe the composition and evolution processes of interfacial species on Au@Pt,Au@Co,and Au@PtCo core-shell nanoparticle *** spectral evidences of interfacial intermediates including hydroxide radical(OH*),superoxide ion(O_(2)^(−)),as well as metal oxide species are directly captured by in situ Raman spectroscopy,which are further confirmed by the both isotopic experiment and density functional theory *** results provide a mechanistic guideline for the rational design of highly efficient electrocatalysts.

关键词： in situ Raman core-shell nanoparticle PtCo interfacial species composition and evolution

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基于特征模型的永磁同步直线电机自适应控制

电机与控制学报 2024年第3期28卷 131-140页

作者：曹阳郭健南京理工大学自动化学院江苏南京210094

为了解决永磁同步直线电机系统的参数不确定性、建模不确定性及饱和非线性等问题,提出一种基于特征模型的自适应控制器。依据特征模型理论描述永磁同步直线电机系统,采用自适应和鲁棒控制方法设计控制器。建立永磁同步直线电机的特征模... 详细信息

为了解决永磁同步直线电机系统的参数不确定性、建模不确定性及饱和非线性等问题,提出一种基于特征模型的自适应控制器。依据特征模型理论描述永磁同步直线电机系统,采用自适应和鲁棒控制方法设计控制器。建立永磁同步直线电机的特征模型,并给出具体建立步骤,使得控制器设计变得简单,易于工程实现。通过设计参数自适应律对系统未知特征参数进行估计,可实现对系统模型的精确补偿,同时在控制器中添加带有误差积分的鲁棒控制项,提高系统对不确定参数及未知干扰的鲁棒性。此外,由于饱和特性的存在,导致控制器产生windup问题,给系统的控制性能和稳定性造成不利影响。因此,该控制器中还带有抗饱和控制项,能够提升系统的抗饱和能力。最后,通过对比实验验证了所提控制器的有效性。

关键词：永磁同步直线电机参数不确定性建模不确定性饱和非线性特征模型自适应控制抗饱和

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单边空间索面曲梁独塔悬索桥主缆线形分析

西南交通大学学报 2024年第2期59卷 298-306页

作者：杨勇智厦门市市政工程设计院有限公司福建厦门361009

目前空间索面悬索桥主缆成桥线形分析方法需要进行复杂的主缆微分方程求解,具有约束方程形式复杂、迭代收敛性受初值影响大等不足.为解决主缆线形求解过程收敛性问题,本文借鉴等代梁法思路,推导得到外荷载与主缆线形的几何关联方程,并... 详细信息

目前空间索面悬索桥主缆成桥线形分析方法需要进行复杂的主缆微分方程求解,具有约束方程形式复杂、迭代收敛性受初值影响大等不足.为解决主缆线形求解过程收敛性问题,本文借鉴等代梁法思路,推导得到外荷载与主缆线形的几何关联方程,并进一步构造出求解空间主缆线形的两阶段分析方法:在粗算阶段,通过解耦处理将初值要求降到最低,得到“具有足够精度且确保收敛”的结果,作为精算阶段初值;在精算阶段,采用迭代计算得到空间主缆线形精确解.通过人行悬索桥算例验证两阶段分析方法的可行性和有效性,并使用有限元软件验证计算成果精度.研究成果表明:本文所提出的方法对初值要求低,无需专门构造初值,迭代循环剔除了变形相容条件及无应力长度计算,求解效率更高,并且能快速收敛得到主缆线形精确解,适用于单边空间索面曲梁独塔悬索桥主缆成桥线形分析.

关键词：单边索面空间索面悬索桥主缆线形几何关联找形

圆弧形蜂窝夹芯板在低速冲击下的动力响应研究

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振动与冲击 2024年第5期43卷 214-222,238页

作者：余阳付涛昆明理工大学机电工程学院昆明650500

为了研究具有负泊松比特性的圆弧形蜂窝夹芯板的动力响应,基于哈密顿原理和一阶剪切变形理论推导了圆弧形蜂窝夹芯板的运动方程,同时建立两自由度的质量-弹簧模型来获得蜂窝夹芯板与冲击器之间的接触力,利用Navier法和Duhamel积分对圆... 详细信息

为了研究具有负泊松比特性的圆弧形蜂窝夹芯板的动力响应,基于哈密顿原理和一阶剪切变形理论推导了圆弧形蜂窝夹芯板的运动方程,同时建立两自由度的质量-弹簧模型来获得蜂窝夹芯板与冲击器之间的接触力,利用Navier法和Duhamel积分对圆弧形夹芯板的运动方程解析求解。在理论模型有效性验证方面,低速冲击下蜂窝夹芯板中心最大横向位移的理论模型计算结果与ABAQUS有限元仿真结果的最大相对误差为4.9%,同时求得理论模型与已发表文献计算出的接触力最大相对误差为8%,验证了理论模型的有效性。通过理论模型研究了蜂窝胞元参数变化对蜂窝夹芯板动力响应的影响,研究结果表明:随着球形冲击器的冲击速度递增,圆弧形蜂窝夹芯板中心最大横向位移也呈现出递增的规律;圆弧形蜂窝夹芯板的抗冲击特性随着蜂窝胞元半径或角度的增大而减小,当蜂窝胞元半径从5 mm增加至7 mm时,蜂窝夹芯板的抗冲击特性减少40.28%;当蜂窝胞元角度从30°增加至60°时,蜂窝夹芯板的抗冲击特性减少83.64%;蜂窝夹芯板的抗冲击特性随着蜂窝胞元壁厚的增大而增大,当蜂窝胞元壁厚从1 mm增加至3 mm时,蜂窝夹芯板的抗冲击特性提升59.51%。通过减小胞元角度和半径,增加胞元壁厚可以提升圆弧形蜂窝夹芯板的抗冲击特性。

关键词：低速冲击蜂窝夹芯板一阶剪切变形理论质量-弹簧模型 ABAQUS有限元仿真