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Properties analysis of a large flow-rate safety valve test device

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Journal of Coal Science & Engineering(China) 2010年第2期16卷 210-214页

作者： WANG Yong jiang jin-qiu SHA Bao-yin SUN Hong-bo ZHAO Rui School of Electrical and Information Engineering China University of Mining ＆ Technology （Beijing） Beijing 100083 China Test Branch China Coal Research Institute Beijing 100013 China

In order to solve the problem of property test of large flow-rate safety, the property parameter of safety valve test system was analyzed, and a device for property oflarge flow-rate safety valve test was *** device used accumulators as power source and a united function cylinder, which can realized the large flow-rate output for the test *** the test data and made a particular research on the test device by testing different flow-rate safety valves;it verifies that the test device can be used tode-sign larger flow-rate safety valve test system and can make the flow-rate test and analysis and dynamic characteristics for the large-flow safety valve.

关键词： safety valve large flow rate test system supporting

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新型巷道挖掘装载机的研制

煤炭科学技术 2000年第5期28卷 27-29页

作者：姜金球煤炭科学研究总院北京建井研究所北京100013

对目前岩巷机械化施工主要装载设备的技术特点、应用情况进行了分析 ,研究了THM型巷道挖掘装载机的工作原理、结构特点、技术优势。

关键词：巷道挖掘装机掘进机械化发展方向巷道施工

The gut-eye axis:from brain neurodegenerative diseases to age-related macular degeneration

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Neural Regeneration Research 2025年第10期20卷 2741-2757页

作者： Qianzi jin Suyu Wang Yujia Yao Qin jiang Keran Li Department of Ophthalmology The Affiliated Eye Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina The Fourth School of Clinical Medicine Nanjing Medical UniversityNanjingJiangsu ProvinceChina

Age-related macular degeneration is a serious neurodegenerative disease of the retina that significantly impacts ***,the specific pathogenesis remains unclear,and effective early treatment options are consequently *** microbiome is defined as a large ecosystem of microorganisms living within and coexisting with a *** intestinal microbiome undergoes dynamic changes owing to age,diet,genetics,and other *** dysregulation of the intestinal flora can disrupt the microecological balance,resulting in immunological and metabolic dysfunction in the host,and affecting the development of many *** recent decades,significant evidence has indicated that the intestinal flora also influences systems outside of the digestive tract,including the ***,several studies have demonstrated the critical role of the gut-brain axis in the development of brain neurodegenerative diseases,including Alzheimer’s disease and Parkinson’s ***,the role of the“gut-eye axis”has been confirmed to play a role in the pathogenesis of many ocular ***,age-related macular degeneration and many brain neurodegenerative diseases have been shown to share several risk factors and to exhibit comparable *** such,the intestinal flora may play an important role in age-related macular *** the above context,the present review aims to clarify the gut-brain and gut-eye connections,assess the effect of intestinal flora and metabolites on age-related macular degeneration,and identify potential diagnostic markers and therapeutic ***,direct research on the role of intestinal flora in age-related macular degeneration is still relatively limited,while studies focusing solely on intestinal flora are insufficient to fully elucidate its functional role in age-related macular ***-on-a-chip technology has shown promise in clarifying the gut-eye interactions,while integrating analysis of the inte

关键词： age-related macular degeneration biological agents blinding eye disease dietary nutrition fecal microbial transplantation gut-eye axis intestinal flora metabolite microecology neurodegenerative disease

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我国中小学教师工资等级研究

教师教育研究 2014年第4期26卷 58-63页

作者：姜金秋杜育红首都经济贸易大学工商管理学院北京100070 北京师范大学教育经济研究所北京100875

我国现行的中小学教师工资等级表存在着等级间重叠度高、高低等级间级差较小、涨幅不合理等问题,难以有效激励教师追求专业水平的提升。本文根据薪酬设计的理论和方法,并结合中小学教师职业发展特点,尝试设计了一个具有以下特点的工资... 详细信息

我国现行的中小学教师工资等级表存在着等级间重叠度高、高低等级间级差较小、涨幅不合理等问题,难以有效激励教师追求专业水平的提升。本文根据薪酬设计的理论和方法,并结合中小学教师职业发展特点,尝试设计了一个具有以下特点的工资等级表:一是基于教师专业成长的阶段划分了五个工资等级与之相适应,体现教师职业发展的特点;二是根据市场工资线设计了第三个等级的中间值,保证了工资水平的外部竞争力;三是采用等比级差法设计等级间中位值,实现了级差随等级增加而增加;四是遵循新的工资理念,设计了合理的等级间工资重叠区间;五是结合教师职业生涯周期,建立了教师工资的正常增长机制。

关键词：中小学教师教师工资工资等级职业发展

高校教师人格特征与工作绩效的关系:组织认同的调节作用

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教师教育研究 2017年第1期29卷 79-86页

作者：姜红孙健敏姜金秋首都经济贸易大学科研处北京100070 中国人民大学心理学系北京100872 首都经济贸易大学城市经济与公共管理学院北京100070

人格是个人所具有的稳定的心理和行为特征的总和,通过人格特征来预测工作绩效,长期以来一直是组织行为学领域备受关注的问题。本文用来自13所高校的865名高校教师的数据,通过实证研究揭示了人格特征与工作绩效的关系,并验证了组织认同... 详细信息

人格是个人所具有的稳定的心理和行为特征的总和,通过人格特征来预测工作绩效,长期以来一直是组织行为学领域备受关注的问题。本文用来自13所高校的865名高校教师的数据,通过实证研究揭示了人格特征与工作绩效的关系,并验证了组织认同在其中的调节作用。研究结果表明,大五人格特征的五个维度对高校教师的组织公民行为(OCB)都具有显著正向影响;大五人格特征的外倾性维度对高校教师的科研绩效具有显著正向影响;在组织认同的调节下,外倾性维度对高校教师的教学绩效也有显著正向影响;神经质维度对高校教师的科研工作绩效有显著的正向影响;责任感维度对高校教师的科研绩效具有显著正向影响;在组织认同的调节下,责任感维度对高校教师的OCB也有显著正向影响。

关键词：人格特征组织认同工作绩效组织公民行为

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柱塞式安全阀性能分析与改进研究

液压与气动 2007年第1期31卷 94-96页

作者：王勇姜金球中国矿业大学(北京)机电与信息工程学院北京100083 国家煤矿支护设备质量监督检验中心北京100013

该文对柱塞式安全阀的结构和机理进行了分析,证明在安全阀开启的第2阶段安全阀流量与压力成近似线性关系,并提出一种利用安全阀“流量-压力”关系曲线分析、改进安全阀结构和性能的有效技术途径。

关键词：安全阀柱塞式性能分析改进研究

AAV2-PDE6B restores retinal structure and function in the retinal degeneration 10 mouse model of retinitis pigmentosa by promoting phototransduction and inhibiting apoptosis

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Neural Regeneration Research 2025年第8期20卷 2408-2419页

作者： Ruiqi qiu Mingzhu Yang Xiuxiu jin jingyang Liu Weiping Wang Xiaoli Zhang jinfeng Han Bo Lei Henan Eye Hospital Henan Provincial People’s HospitalPeople’s Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina Eye Institute Henan Academy of Innovations in Medical ScienceZhengzhouHenan ProvinceChina Branch of National Clinical Research Center for Ocular Disease Henan Provincial People’s HospitalZhengzhouHenan ProvinceChina Academy of Medical Science Zhengzhou UniversityZhengzhouHenan ProvinceChina

Retinitis pigmentosa is a group of inherited diseases that lead to retinal degeneration and photoreceptor cell ***,there is no effective treatment for retinitis pigmentosa caused by PDE6B ***-associated virus(AAV)-mediated gene therapy is a promising strategy for treating retinitis *** aim of this study was to explore the molecular mechanisms by which AAV2-PDE6B rescues retinal *** do this,we injected retinal degeneration 10(rd10)mice subretinally with AAV2-PDE6B and assessed the therapeutic effects on retinal function and structure using dark-and light-adapted electroretinogram,optical coherence tomography,and ***-independent acquisition-mass spectrometry-based proteomic analysis was conducted to investigate protein expression levels and pathway enrichment,and the results from this analysis were verified by real-time polymerase chain reaction and western ***2-PDE6B injection significantly upregulated PDE6βexpression,preserved electroretinogram responses,and preserved outer nuclear layer thickness in rd10 *** expressed proteins between wild-type and rd10 mice were closely related to visual perception,and treating rd10 mice with AAV2-PDE6B restored differentially expressed protein expression to levels similar to those seen in wild-type *** Encyclopedia of Genes and Genome analysis showed that the differentially expressed proteins whose expression was most significantly altered by AAV2-PDE6B injection were enriched in phototransduction ***,the phototransductionrelated proteins Pde6α,Rom1,Rho,Aldh1a1,and Rbp1 exhibited opposite expression patterns in rd10 mice with or without AAV2-PDE6B ***,Bax/Bcl-2,p-ERK/ERK,and p-c-Fos/c-Fos expression levels decreased in rd10 mice following AAV2-PDE6B *** data suggest that AAV2-PDE6B-mediated gene therapy promotes phototransduction and inhibits apoptosis by inhibiting the ERK signaling pathway and upr

关键词： apoptosis AAV2-PDE6B ERK1/2 gene therapy phototransduction proteomics rd10 retinitis pigmentosa

《乡村教师生活补助政策》实施背景下师范生乡村从教意愿及影响因素分析——基于西部贫困地区15所院校的调查

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教师教育研究 2019年第1期31卷 43-50页

作者：姜金秋陈祥梅首都经济贸易大学北京100070 北京师范大学中国教育经济信息研究中心北京100875

在《乡村教师生活补助政策》全面落实的背景下,本文采用Logit阶层回归模型,对西部贫困地区15所院校师范生的乡村从教意愿及影响因素进行了实证分析。研究发现:超过半数的师范生愿意去乡村从教,但只有少数愿意从教3年以上;政策知晓度对... 详细信息

在《乡村教师生活补助政策》全面落实的背景下,本文采用Logit阶层回归模型,对西部贫困地区15所院校师范生的乡村从教意愿及影响因素进行了实证分析。研究发现:超过半数的师范生愿意去乡村从教,但只有少数愿意从教3年以上;政策知晓度对师范生乡村从教意愿有显著的积极影响;少数民族、男性、非独生子女更愿意去乡村长期从教;农村户籍、家庭年收入在1万元以下、父亲受教育程度初中及以下、家人支持的师范生更愿意去乡村从教;月收入期望值底线、乡村厌恶度对乡村从教意愿有显著的负向影响。建议国家制定多样化激励政策鼓励师范生乡村从教;西部地方院校要加强乡村教师政策的宣传力度;西部乡村教师招聘时可优先考虑少数民族、农村籍、非独生子女、家人支持的应聘者。

关键词：乡村教师从教意愿教师供给西部地区师范生

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： jin-Peng Wang Guo-Cui Mao Hui-Lin jiang Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： CO 2 methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface