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The Innovation and Thinking on Postgraduates' Ideological and Political Education in a New Period

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The Innovation and Thinking on Postgraduates' Ideological an...

Residue Based Open-Loop Modal Analysis Method for Detecting LFMR of PMSG-WFs Penetrated Power Systems

2013教育技术与信息系统国际会议

作者： tianhao liu Graduate School Jilin Normal University

The ideological and political education is an important part of postgraduate education. Currently, in the face of new conditions, new changes and new problems appeared in graduates’ ideological and political education, constantly to innovate new ways and new methods for graduates’ ideological and political education, is very important for how to do well the job of postgraduates’ ideological and political education and achieving the goal of cultivating high-quality innovative talents.

关键词： Postgraduates Ideological and Political Education Innovation

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CSEE Journal of Power and Energy Systems 2024年第4期10卷 1454-1465页

作者： Luonan Qiu tianhao Wen Yang liu Q.H.Wu School of Electric Power Engineering South China University of TechnologyGuangzhou510640China

This paper proposes a residue based open-loop modal analysis method to detect low frequency modal resonance(LFMR),including asymmetric low frequency modal attraction(ALFMA)and asymmetric low frequency modal repulsion(ALFMR),of permanent magnetic synchronous generator based wind farms(PMSG-WFs)penetrated power *** formation of ALFMA and ALFMR caused by two open-loop low frequency oscillation(LFO)modes moving close and apart is analyzed in *** predicting the trajectories of closed-loop LFO modes based on calculation of residue of open-loop LFO modes,both ALFMA and ALFMR can be *** proposed method can select LFO modes which move to the right half complex plane as control parameters *** studies are carried out on a three-machine power system and a four-machine 11-bus power system to verify the properties of the proposed method.

关键词： Asymmetric low frequency modal attraction asymmetric low frequency modal repulsion low frequency modal resonance residue based open-loop modal analysis method

High electron mobility fluorinated indacenodithiophene small molecule acceptors for organic solar cells

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Chinese Chemical Letters 2021年第3期32卷 1257-1262页

作者： Fei Pan Xiaojun Li Song Bai tianhao liu Xian Wei Yingfen Li Shanshan Chen Changduk Yang Xiwen Chen Menglan Lv Yongfang Li School of Chemical Engineering Guizhou Institute of TechnologyGuiyang 550003China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical Science University of Chinese Academy of SciencesBeijing 100049China School of Chemistry and Chemical Engineering Guizhou UniversityGuiyang 550025China MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems CQU-NUS Renewable Energy Materials&Devices Joint LaboratorySchool of Energy&Power EngineeringChongqing UniversityChongqing 400044China Department of Energy Engineering School of Energy and Chemical EngineeringLow Dimensional Carbon Materials CenterUlsan National Institute of Science and Technology(UNIST)Ulsan 689-798South Korea Guangzhou Polyforte Chemical Technology Co.Ltd. Guangzhou 510520China

Indacenodithiophene(IDT)derivatives are kinds of the most representative and widely used cores of small molecule acceptors(SMAs)in organic solar cells(OSCs).Here we systematically investigate the influence of end-group fluo rination density and position on the photovoltaic properties of the IDT-based SMAs IDIC-nF(n=0,2,4).The absorption edge of IDIC-nF red-shifts with theπ-πstacking and crystallinity improvement,and their electronic energy levels downshift with increasing *** to the advantages of J_(sc)and FF as well as acceptable V_(oc),the difluorinated IDIC-2 F acceptor based OSCs achieve the highest power conversion efficiency(PCE)of 13%,better than the OSC devices based on IDIC and IDIC-4 F as *** the photovoltaic performance of the PTQ10:IDIC-2 F OSCs is insensitive to the active layer thickness:PCE still keep high values of 12.00%and 11.46%for the devices with active layer thickness of 80 and 354 nm,*** work verifies that fine and delicate modulation of the SMAs molecular structure could optimize photovoltaic performance of the corresponding ***,the thickness-insensitivity property of the OSCs has potential for large-scale and printable fabrication technology.

关键词： Organic solar cells Indacenodithiophene Electron mobility Fluorination π-πStacking Crystallinity

伴睡眠障碍帕金森病患者胆碱能通路高信号与认知功能相关性

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中华行为医学与脑科学杂志 2024年第3期33卷 206-211页

作者：徐新荣王皓方雨晴毛飞赵张宁任延红朱晓冉刘天淏张艳青李秀华山东第一医科大学第一附属医院神经内科济南250012

目的探究伴睡眠障碍帕金森病(Parkinson disease,PD)患者胆碱能通路高信号与认知功能的相关性。方法选取2017—2022年住院的PD患者,根据帕金森病睡眠量表(Parkinson's disease sleep scale,PDSS)评分将其分为PD伴睡眠障碍组(PD-SD组)(n=... 详细信息

目的探究伴睡眠障碍帕金森病(Parkinson disease,PD)患者胆碱能通路高信号与认知功能的相关性。方法选取2017—2022年住院的PD患者,根据帕金森病睡眠量表(Parkinson's disease sleep scale,PDSS)评分将其分为PD伴睡眠障碍组(PD-SD组)(n=56)、PD不伴睡眠障碍组(PD-NSD组)(n=41)。所有被试均行磁共振检查。对两组患者进行PDSS、霍亚分级评估(Hoehn-Yahr,H-Y)、蒙特利尔认知评估量表(Montreal cognitive assessment scale,MoCA)、胆碱能通路高信号量表(cholinergic pathways hyper intensities scale,CHIPS)评估。分析两组患者认知功能的差异及CHIPS与认知功能的相关性。采用SPSS 26.0统计软件对数据进行独立样本t检验、Spearman相关分析和二元Logistic回归分析。结果(1)PD-SD组的MoCA评分[22.00(5.00)分]低于PD-NSD组[26.00(5.00)分](Z=-3.830,P0.05)。结论PD伴有睡眠障碍比不伴有睡眠障碍患者的认知功能评分更低,CHIPS得分更高,脑白质病变更明显。在伴有睡眠障碍的PD患者中,CHIPS得分越高,认知功能评分越低,其认知障碍发生和发展的速度越显著。

关键词：帕金森病睡眠障碍认知功能胆碱能通路高信号量表

一种超高强韧性富Fe多主元合金组织性能研究

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金属加工（热加工） 2024年第9期 90-94页

作者：张思邈伊广震刘天豪赵苗青宋胜男杜兴蒿沈阳航空航天大学材料科学与工程学院辽宁沈阳110136

研究了富Fe的多主元合金(高熵钢)的组织性能,发现Fe40Ni30Co10Cr8Al5Ti7合金通过冷轧及时效热处理后,在室温下可获得优异的拉伸性能,屈服强度达到1750MPa,伸长率达到11%。观察得知,冷轧及时效处理态微观组织由面心立方基体的异质结构和... 详细信息

研究了富Fe的多主元合金(高熵钢)的组织性能,发现Fe40Ni30Co10Cr8Al5Ti7合金通过冷轧及时效热处理后,在室温下可获得优异的拉伸性能,屈服强度达到1750MPa,伸长率达到11%。观察得知,冷轧及时效处理态微观组织由面心立方基体的异质结构和共格析出的L12结构有序强化相组成。通过观察分析,该合金通过细晶体强化、位错强化,以及有序相沉淀强化的综合作用,可获得优异的力学性能,而在形变过程中高密度层错产生的应变强化,使合金获得优异的塑性,凸显了L12结构有序强化相对于Fe的多主元合金(高熵钢)产生的强韧化作用。

关键词：富Fe的多主元合金强化机制变形机制异质结构

EZH2 is a prognostic factor associated with tumor stemness and immune infiltration in skull base chordoma

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Genes & Diseases 2024年第5期11卷 85-87页

作者： Qian liu Mingxuan Li Yujia Xiong Yutao Shen Tianshun Ma tianhao Zhang Xiaohong R.Yang Yazhuo Zhang Jiwei Bai Beijing Neurosurgical Institute Capital Medical UniversityBeijing 100070China Department of Neurosurgery Beijing Tiantan HospitalCapital Medical UniversityBeijing 100070China Division of Cancer Epidemiology and Genetics National Cancer InstituteNIHDHHSBethesdaMD 20892USA

Enhancer of zeste homolog 2(EZH2),an epigenetic regulator that inhibits transcription primarily through trimethylation of Lys-27 in histone 3(H3K27me3),has been reported to play an important role in the regulation of cell cycle,autophagy,and apoptosis,and DNA damage repair.1 EZH2 is highly expressed in a variety of cancers including prostate cancer,breast cancer,and renal clear cell carcinoma,and is associated with adverse prognosis.1 Moreover,it has been reported that EZH2 might increase tumor stemness and metastasis capacity and inhibit antitumor immunity by affecting T cells,NK cells,macrophages,and immune checkpoints.2,3 However,the prognostic value and the mechanism of EZH2 have not been investigated in *** this study,RNA sequencing and whole genome sequencing data based on 48 skull base chordomas as well as immunohistochemistry of paraffin sections were analyzed to elucidate the role of EZH2 in skull base *** found copy number gain mediated high EZH2 expression is associated with tumor stemness,M2 macrophage infiltration,and adverse prognosis in ***,we demonstrated that EZH2 promotes the proliferation,migration,and invasion of chordoma cells in in vitro cell experiments.

关键词： EZH2 immunity invasion

Porous framework materials for energy&environment relevant applications:A systematic review

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Green Energy & Environment 2024年第2期9卷 217-310页

作者： Yutao liu Liyu Chen Lifeng Yang tianhao Lan Hui Wang Chenghong Hu Xue Han Qixing liu Jianfa Chen Zeming Feng Xili Cui Qianrong Fang Hailong Wang Libo Li Yingwei Li Huabin Xing Sihai Yang Dan Zhao Jinping Li College of Chemical Engineering and Technology Shanxi Key Laboratory of Gas Energy Efficient and Clean UtilizationTaiyuan University of TechnologyTaiyuan030024China School of Chemistry and Chemical Engineering South China University of TechnologyGuangzhou510640China Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China Department of Chemistry The University of ManchesterManchesterM139PLUK Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou311215China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin UniversityChangchun130012China Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of ChemistryUniversity of Science and Technology BeijingBeijing100083China

Carbon peaking and carbon neutralization trigger a technical revolution in energy&environment related *** of new technologies for green energy production and storage,industrial energy saving and efficiency reinforcement,carbon capture,and pollutant gas treatment is in highly imperious *** emerging porous framework materials such as metal–organic frameworks(MOFs),covalent organic frameworks(COFs)and hydrogen-bonded organic frameworks(HOFs),owing to the permanent porosity,tremendous specific surface area,designable structure and customizable functionality,have shown great potential in major energy-consuming industrial processes,including sustainable energy gas catalytic conversion,energy-efficient industrial gas separation and ***,this manuscript presents a systematic review of porous framework materials for global and comprehensive energy&environment related applications,from a macroscopic and application perspective.

关键词： Porous framework materials Catalysis Separation Gas storage Carbon neutrality

极端自然灾害下电力信息物理系统韧性增强策略

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电力系统自动化 2021年第3期45卷 40-48页

作者：刘天浩朱元振孙润稼刘玉田电网智能化调度与控制教育部重点实验室(山东大学) 山东省济南市250061

电力系统在极端灾害下维持并恢复正常功能的能力取决于其韧性。考虑信息系统与电力系统的相互影响,提出了一种电力信息物理系统应对极端自然灾害的韧性增强策略。首先,建立了电力信息物理系统的极端自然灾害防御框架,展示在信息物理环... 详细信息

电力系统在极端灾害下维持并恢复正常功能的能力取决于其韧性。考虑信息系统与电力系统的相互影响,提出了一种电力信息物理系统应对极端自然灾害的韧性增强策略。首先,建立了电力信息物理系统的极端自然灾害防御框架,展示在信息物理环境下的决策控制技术。在此基础上,提出电网预防分区方法,在预测防护阶段依据故障概率和拓扑连通度进行电网分区。然后,提出支路有功调整方法,用于降低灾害抵御阶段线路开断导致的支路功率越限和系统失稳的风险。针对灾后恢复,提出信息系统和电力系统协同恢复方法,以恢复停电负荷和故障线路。修改的新英格兰测试系统仿真结果表明,所提策略能够有效降低灾害风险,加快信息物理系统的恢复进度。

关键词：电网韧性信息物理系统极端自然灾害电力系统恢复

Force-induced Caspase-1-dependent pyroptosis regulates orthodontic tooth movement

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International Journal of Oral Science 2024年第2期16卷 238-250页

作者： Liyuan Chen Huajie Yu Zixin Li Yu Wang Shanshan Jin Min Yu Lisha Zhu Chengye Ding Xiaolan Wu tianhao Wu Chunlei Xun Yanheng Zhou Danqing He Yan liu Department of Orthodontics Central LaboratoryPeking University School and Hospital for Stomatology&National Center for Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical Devices&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental Materials&National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijingChina Peking University Hospital of Stomatology Fourth Division BeijingChina

Pyroptosis,an inflammatory caspase-dependent programmed cell death,plays a vital role in maintaining tissue homeostasis and activating inflammatory *** tooth movement(OTM)is an aseptic force-induced inflammatory bone remodeling process mediated by the activation of periodontal ligament(PDL)progenitor ***,whether and how force induces PDL progenitor cell pyroptosis,thereby influencing OTM and alveolar bone remodeling remains *** this study,we found that mechanical force induced the expression of pyroptosis-related markers in rat OTM and alveolar bone remodeling *** or enhancing pyroptosis level could suppress or promote OTM and alveolar bone remodeling *** Caspase-1^(−/−)mice,we further demonstrated that the functional role of the force-induced pyroptosis in PDL progenitor cells depended on ***,mechanical force could also induce pyroptosis in human ex-vivo force-treated PDL progenitor cells and in compressive force-loaded PDL progenitor cells in vitro,which influenced ***,transient receptor potential subfamily V member 4 signaling was involved in force-induced Caspase-1-dependent pyroptosis in PDL progenitor ***,this study suggested a novel mechanism contributing to the modulation of osteoclastogenesis and alveolar bone remodeling under mechanical stimuli,indicating a promising approach to accelerate OTM by targeting Caspase-1.

关键词： homeostasis movement thereby