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Analysis and Optimization of Transient Mode Switching Behavior for Power Split Hybrid Electric Vehicle with Clutch Collaboration

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Automotive Innovation 2024年第1期7卷 150-165页

作者： Dehua Shi sheng Liu Yujie Shen Shaohua Wang Chaochun yuan Long Chen Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China Jiangsu Province Engineering Research Center of Electric Drive System and Intelligent Control for Alternative Vehicles Zhenjiang 212013China

The power split hybrid electric vehicle(HEV)adopts a power coupling configuration featuring dual planetary gearsets and multiple clutches,enabling diverse operational modes through clutch engagement and *** multi-clutch configuration usually involves the collaboration of two clutches during the transient mode switching process,thereby substantially elevating control *** study focuses on power split HEVs that integrate multi-clutch mechanisms and investigates how different clutch collaboration manners impact the characteristics of transient mode *** powertrain model for the power-split HEV is established utilizing matrix-based *** the formulation of clutch torque curves and clutch collaboration models,this research systematically explores the effects of clutch engagement timing and the duration of clutch slipping state on transient mode switching *** upon this analysis,an optimization problem for control parameters pertaining to the two collaborative clutches is *** simulated annealing algorithm is employed to optimize these control *** results demonstrate that the clutch collaboration manners have a great influence on the transient mode switching *** with the pre-calibrated benchmark and the optimal solution derived by the genetic algorithm,the maximal longitudinal jerk and clutch slipping work during the transient mode switching process is reduced obviously with the optimal control parameters derived by the simulated annealing *** study provides valuable insights for the dynamic coordinated control of the power-split HEVs featuring complex clutch collaboration mechanisms.

关键词： Power split hybrid electric vehicle Transient mode switching Clutch collaboration Simulated annealing Powertrain model

Synergic catalysis of W and Ni originating from substitution of trivacant phosphotungstate for the selective oxidation of aniline to azoxybenzene

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Chinese Chemical Letters 2024年第2期35卷 558-563页

作者： sheng Cai Xiao-yuan Wu Weiming Wu Sa-Sa Wang Can-Zhong Lu CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350117China Xiamen Institute of Rare Earth Materials Chinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China

Partial substitution of polyoxometalate(POM)is an efficient route to modulate the catalytic property of maternal *** this work,a new Keggin type POM involving{Ni 6}cluster,{[Ni(H_(2) O)_(2)(Dach)_(2)][Ni(Dach)_(2)]_(2)}{[Ni_(6)Cl(μ-OH)_(3)(H_(2) O)(Dach)_(3)(WO_(4))(PW9 O_(3)_(4))][Ni_(6)(μ-OH)_(3)(H_(2) O)_(2)(Dach)_(3)(WO_(4))(PW9 O_(3)_(4))]}Cl·27H_(2) O,(1,Dach=1,2-diaminocyclohexane)was *** 1 shows excellent catalytic performance in the selective oxidation of aniline to azoxybenzene(AOB)in *** apparently different results from that with the matrix{PW 9 O_(3)_(4)}({PW9})suggest the successful regulation of the catalytic property of{PW9}by the introduction of the{Ni6}cluster into the *** experimental results indicate that the highlighted performance of 1 is contributed by the synergy of W and Ni sites,which are respectively responsible for the oxidation and condensation steps in the production of *** good selectivity to AOB is essentially attributed to the effective modulation of the reaction rates of oxidation and condensation steps by W and Ni sites,respectively.

关键词： Polyoxometalate {Ni6}cluster Modulated catalytic property Aniline oxidation Azoxybenzene

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基于灰色关联分析模拟月壤抗压强度性能试验

吉林大学学报（工学版） 2024年第7期54卷 2015-2025页

作者：汪恩良任志凤王储刘君巍刘兴超田野邹猛卢孜筱张伟伟姜生元东北农业大学水利与土木工程学院哈尔滨150030 星壤水冰分析测试联合实验室哈尔滨150030 中国空间技术研究院北京空间飞行器总体设计部北京100094 哈尔滨工业大学宇航空间机构及控制研究中心哈尔滨150001 哈尔滨商业大学轻工学院哈尔滨150028 吉林大学工程仿生教育部重点实验室长春130022 国家纳米科学中心北京100190

在月球南极永久阴影区内探测水冰物质是我国嫦娥七号的重要任务,为此在地球环境下开展模拟研究,制备极区含水模拟月壤测试样本,并对其月壤模拟物进行超低温条件下的力学特性测试,分析含水率、相对密实度、温度、加载速率及基材配比与抗... 详细信息

在月球南极永久阴影区内探测水冰物质是我国嫦娥七号的重要任务,为此在地球环境下开展模拟研究,制备极区含水模拟月壤测试样本,并对其月壤模拟物进行超低温条件下的力学特性测试,分析含水率、相对密实度、温度、加载速率及基材配比与抗压强度变化规律。结果明:冻结月壤模拟物的抗压强度随着含水率的增加而增大,随着密实度的增加而增大,随温度降低而增大,受加载速率变化的影响较小,受不同基材配比影响的抗压强度排序为:100%斜长岩密实度>温度>配比>加载速率。本文进行了含水月壤制备及力学特性测试,提出了更加系统规范的实施方案,作为极区含水月壤特性的研究基础,为后续月壤模拟研究提供了理论依据及参考。

关键词：地面力学含水月壤模拟物抗压强度灰色关联理论关联度

岛叶通过GluA1受体和腺苷酸环化酶1参与调控大鼠头痛及相关焦虑行为

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中国疼痛医学杂志 2024年第3期30卷 173-182页

作者：李扬李晨浩毛静瑞张雯雯马真捷韩珣唐闻晶刘若卓于生元刘颖璐解放军总医院第一医学中心神经内科医学部北京100853 解放军医学院北京100853 南开大学医学院天津300071

目的:通过大鼠模型明确岛叶是否参与偏头痛发病并探索其机制。方法:连续硬膜外注射炎症汤建立慢性偏头痛(chronic migraine,CM)大鼠模型。von Frey纤维丝评估眶周机械阈值。通过旷场和高架十字迷宫实验观察动物焦虑行为。使用免疫印迹... 详细信息

目的:通过大鼠模型明确岛叶是否参与偏头痛发病并探索其机制。方法:连续硬膜外注射炎症汤建立慢性偏头痛(chronic migraine,CM)大鼠模型。von Frey纤维丝评估眶周机械阈值。通过旷场和高架十字迷宫实验观察动物焦虑行为。使用免疫印迹实验检测岛叶α-氨基-3-羟基-5-甲基-4-异恶唑丙酸(α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid,AMPA)受体亚基1-Glu A1受体及腺苷酸环化酶1(adenylate cyclase 1,AC1)的表达。通过双侧岛叶注射AC1抑制剂探索可能的机制。结果:连续炎症汤刺激硬脑膜可诱导大鼠产生偏头痛样头痛及焦虑行为。与对照组相比,CM组岛叶的c-Fos、Glu A1及其磷酸化(p-Glu A1-S845)和AC1的表达显著增加。岛叶注射AC1抑制剂可缓解大鼠的痛觉过敏和焦虑行为,降低岛叶AC1和Glu A1表达量及p-Glu A1-S845水平。结论:岛叶可能通过Glu A1及AC1参与调控大鼠偏头痛样头痛及焦虑行为。

关键词：岛叶偏头痛焦虑腺苷酸环化酶1

Early detection of multiple endocrine neoplasia type 1: A case report

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World Journal of Gastroenterology 2024年第26期30卷 3247-3252页

作者： Jie-Hao yuan Su Luo Ding-Guo Zhang Li-sheng Wang Department of Gastroenterology Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan University)Shenzhen 518020Guangdong ProvinceChina

BACKGROUND Multiple endocrine neoplasias(MENs)are a group of hereditary diseases invol-ving multiple endocrine glands,and their prevalence is *** type 1(MEN1)has diverse clinical manifestations,mainly involving the parathyroid glands,gastrointestinal tract,pancreas and pituitary gland,making it easy to miss the clinical *** SUMMARY We present the case of a patient in whom MEN1 was detected early.A middle-aged male with recurrent abdominal pain and diarrhea was admitted to the *** tests at admission revealed hypercalcemia and hypophosphatemia,and emission computed tomography of the parathyroid glands revealed a hy-perfunctioning parathyroid *** findings suggested a duodenal bulge and *** endoscopy revealed a hypoechoic lesion in the duodenal *** blood tests revealed elevated levels of serum *** was performed,and pathological analysis of the surgical specimens revealed a parathyroid adenoma after parathyroidectomy and a neuroendocrine tumor after duodenal *** time from onset to the definitive diagnosis of MEN1 was only approximately 1 *** For patients who present with gastrointestinal symptoms accompanied by hyper-calcemia and hypophosphatemia,clinicians need to be alert to the possibility of MEN1.

关键词： Multiple endocrine neoplasia type 1 Gastrointestinal symptoms Hypercal-cemia Early detection Case report

Effect of electrolyte cation-mediated mechanism on electrocatalytic carbon dioxide reduction

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Chinese Chemical Letters 2024年第7期35卷 139-146页

作者： yuan Dong Mutian Ma Zhenyang Jiao sheng Han Likun Xiong Zhao Deng Yang Peng Soochow Institute of Energy and Material Innovations College of EnergyJiangsu Key Laboratory of Advanced Carbon Materials and Wearable Energy TechnologiesSoochow UniversitySoochow 215006China Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySoochow 215123China School of Chemistry and Chemical Engineering Shihezi UniversityShihezi 832003China School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China

The steep reduction in costs and systematic optimization of renewable electricity has ignited an intensifying interest in harnessing electroreduction of carbon dioxide(CO_(2)RR)for the generation of chemicals and *** focus of research over the past few decades has been on the optimization of the electrode and the electrolyte ***,cation species in the latter have recently been found to dramatically alter the selectivity of CO_(2)RR and even their catalytic activity by multiple orders of *** a result,the selection of cations is a critical factor in designing catalytic interfaces with high selectivity and efficiency for targeted *** decision-making regarding cation selection relies on a comprehensive understanding of prevailing electrolyte effect models that have been used to elucidate observed experimental *** this perspective,we review the hypotheses that explain how electrolyte cations influence CO_(2)RR by mechanisms such as through tuning of the interfacial electric field,buffering of the local pH,stabilization of the key intermediates and regulation of the interfacial *** endeavor is to elucidate the molecular mechanisms underpinning cation effects,thus fostering the evolution of more holistic and universally applicable predictive *** this regard,we highlight the current challenges in this area of research,while also identifying potential avenues for future investigations.

关键词： CO_(2)electrocatalytic reduction Cation effects Catalytic mechanisms Catalytic interfaces Electric double layer

Weathering geochemistry and palaeoclimate implication of the Early Permian mudstones from eastern Henan Province, North China

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Journal of Palaeogeography 2017年第4期6卷 370-380页

作者： Jiang-Hai Yang yuan-sheng Du State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences

Terrigenous clastic sediments are generated by the integration of the Earth surface processes and their deep-time counterparts provide a valuable archive for regional/global climatic, geographic and landscape evolution. It is thus important to read and interpret these deep-time sedimentary records, especially for reconstructing continent climate. Previous studies on the Early Permian sequences from the North China document a dominant control of source chemical weathering on mudstone compositions and its linkage with continent climate conditions. Based on the weathering geochemical data of these mudstones, element mobility during weathering can be ordered as Ca 〉 Na ≥ Mg 〉 Sr 〉 K ≥ Ba 〉 Rb. The weathering regime in the source area is inferred to be supply-limited according to the estimated continent physical erosion rate and regional tectonic evolution, sedimentation in North China. Further exploration of palaeoclimate implication is presented in terms of variation of high-to-low latitudinal temperature gradient across the Early Permian glacial to post-glacial climate transition.

关键词： Chemical weathering Weathering geochemistry Mudstones Early Permian North China

Multiplicity of Positive Solutions to M-point Boundary Value Problem of Second Order Impulsive Differential Equations

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Acta Mathematicae Applicatae Sinica 2010年第1期26卷 145-158页

作者： yuan-sheng Tian Chun-gen Liu Department of Mathematics Xiangnan University Chenzhou 423000 China School of Mathematics and LPMC Nankai University Tianjin 300071 China

In this paper, by using Avery-Peterson theorem on a convex cone, we consider the m-point boundary value problems for second order impulsive differential equations with the nonlinear term depending on the first order d... 详细信息

关键词： Boundary value problem impulsive differential equations fixed-point theorem positive solutions

CT血管成像及淋巴示踪技术在结肠癌手术中的应用进展

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中国现代普通外科进展 2024年第3期27卷 218-221页

作者：张驰伟丁元升曹明争王永顺吕烁刘乃青潍坊医学院潍坊医学院临床医学院山东潍坊261000 临沂市中心医院普外一科山东临沂276400

结肠癌最常见的转移途径是淋巴转移,出现淋巴结转移则提示肿瘤分期较晚,病情较重,手术中淋巴结清除的彻底性影响着结肠癌患者的预后;吻合口瘘是结肠癌最严重的术后并发症之一。如何在保障淋巴结清除彻底性的同时保障吻合口血运、最大化... 详细信息

结肠癌最常见的转移途径是淋巴转移,出现淋巴结转移则提示肿瘤分期较晚,病情较重,手术中淋巴结清除的彻底性影响着结肠癌患者的预后;吻合口瘘是结肠癌最严重的术后并发症之一。如何在保障淋巴结清除彻底性的同时保障吻合口血运、最大化保留肠道功能,一直是结肠癌根治手术的难点与热点。CT血管成像(CTA)技术可以辅助施术者术前了解患者肿瘤区域血管的解剖分型及走行,淋巴示踪技术可以指引肿瘤周围淋巴结引流情况。笔者整理了CTA及淋巴示踪技术在结肠癌手术中的应用进展,就其优势及局限性进行阐述。

关键词： CT血管成像淋巴示踪技术结肠肿瘤外科手术