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农村生活垃圾处理的公共服务供给问题与对策研究

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湖北第二师范学院学报 2013年第4期30卷 40-42页

作者：木坤坤燕盛斌凌奇郑州大学公共管理学院郑州450001

当前,生活垃圾问题日趋严重,与城市相比,农村在生活垃圾处理方面的公共服务供给存在体制不健全、规模不足、质量不高等问题;解决这些问题,需要建立以政府为主导,多元化供给的体制,并不断加大在农村垃圾处理方面的公共服务供给投入力度,... 详细信息

当前,生活垃圾问题日趋严重,与城市相比,农村在生活垃圾处理方面的公共服务供给存在体制不健全、规模不足、质量不高等问题;解决这些问题,需要建立以政府为主导,多元化供给的体制,并不断加大在农村垃圾处理方面的公共服务供给投入力度,提高供给质量,因地制宜解决问题。

关键词：农村生活垃圾公共服务供给

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工程型高温度梯度单晶炉研制

真空 2014年第5期51卷 59-63页

作者：佟勃勇闫胜斌张以忱锦州锦开电器集团有限责任公司辽宁锦州121013 东北大学机械工程与自动化学院辽宁沈阳110004

介绍了新型工程型高温度梯度单晶炉研制开发的项目背景,主要研发内容及技术指标,创新性和达到的技术水平,产品采标,应用领域及应用情况,产品经济和社会效益情况,对推动产业发展或行业技术进步的意义。

关键词：工程型高温度梯度单晶炉高温度梯度两区加热计算机程序 PLC控制

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在工程热力学课程教学中实施素质教育的探讨

天津城市建设学院学报 1999年第4期5卷 70-75页

作者：王泽生颜爱斌天津城市建设学院热能工程系天津300381

探讨了在工程热力学课程教学中如何多层次、多角度挖掘隐含在教学内容之中素质教育的内容和形式,以及实施素质教育的具体方法和手段.

关键词：工程热力学课程教学素质教育教学内容教学方法

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青少年羽毛球运动员体能训练科学化探索

体育科技文献通报 2013年第9期21卷 50-51,58页

作者：焉胜彬王景波刘显祐青岛滨海学院山东青岛266555 中国足球协会北京100061

我国青少年羽毛球运动员体能训练研究比较少,训练中没有正确认识羽毛球运动专项体能特征,训练理念滞后、训练方法手段陈旧、训练周期中体能训练安排不合理等制约我国青少年羽毛球运动水平提高,研究结果表明依据羽毛球运动制胜规律,更新... 详细信息

我国青少年羽毛球运动员体能训练研究比较少,训练中没有正确认识羽毛球运动专项体能特征,训练理念滞后、训练方法手段陈旧、训练周期中体能训练安排不合理等制约我国青少年羽毛球运动水平提高,研究结果表明依据羽毛球运动制胜规律,更新训练理念、科学安排训练周期、合理训练方法与手段,成功身体功能性训练将能有效提高青少年羽毛球运动员专项体能。

关键词：青少年羽毛球运动员专项体能科学训练

Technical research on optimization design of contacts of electrical connector

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第3期8卷 506-510页

作者： LV bin ZHOU sheng-jun ZHAO Lan-yan Hangzhou Aerospace Electronic Technology Co. Ltd Hangzhou 310015 China

Pin and socket contacts are the key parts of electrical connector as aerospace electronic components. The contacts are also the direct carriers for signal transmitting of electronic equipments, passing the signal from the input end to the output end of electrical connector. The reliability of pin and socket contacts directly influences signal transmission. The goal of this study is to enhance the contact reliability of aerospace electrical connector. Computer simulation analysis was made on contacts performance data by utilizing the simulation system developed by PCL Language of MSC software. Furthermore, the results were experi- mentally validated so as to realize the objective of optimizing contacts design.

关键词： Electrical connector Contacts Simulation Optimization design

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中国足球超级联赛市场秩序的研究

沈阳体育学院学报 2007年第6期26卷 109-112页

作者：焉胜彬张立双王景波沈阳体育学院研究生部辽宁沈阳110102 沈阳体育学院运动训练系辽宁沈阳110102

从系统论的角度对影响中超联赛市场秩序的因素进行研究,把中超联赛市场系统内部分为联赛市场主体要素和联赛市场客体要素。认为在联赛市场系统内主体要素的利益不协调,客体要素中各种法律法规不完善,联赛市场的管理手段以行政管理为主,... 详细信息

从系统论的角度对影响中超联赛市场秩序的因素进行研究,把中超联赛市场系统内部分为联赛市场主体要素和联赛市场客体要素。认为在联赛市场系统内主体要素的利益不协调,客体要素中各种法律法规不完善,联赛市场的管理手段以行政管理为主,制约联赛市场秩序性态的稳定。建议加强联赛市场主体的利益协调,提高联赛市场主体的伦理道德素质,完善联赛市场秩序的相关法律法规,规范联赛各种管理部门的关系与职责,并根据经济、政治、文化、社会环境的变化,实现联赛市场秩序的治理从国家主导型向国家与社会共同治理过程转变。

关键词：中超联赛市场秩序因素分析对策

Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-yan Huang Yi-De Zhang Jie Chen Hai-Di Fan Wan Wang bin Wang Ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian Guo Jian-Gang Shen Su-Hua Qi School of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

From laboratory to on-site operation:Reevaluation of empirically based electric water chiller models

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Building Simulation 2022年第2期15卷 213-232页

作者： bin Zhang Shijun You sheng Wang Xiaoxiao Ding Chuang Wang yan Gao School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation Zhuhai 519070China Guangdong Key Laboratory of Refrigeration Equipment and Energy Conservation Technology Zhuhai 519070China Beijing Key Laboratory of Heating Gas SupplyVentilating and Air Conditioning EngineeringBeijing University of Civil Engineering and ArchitectureBeijing 100044China Beijing Advanced Innovation Center for Future Urban Design Beijing University of Civil Engineering and ArchitectureBeijing 100044China

Chiller model is a key factor to building energy simulation and chiller performance *** spread of new types of electric water chillers that have higher performance and wider operating range,new challenges have been faced by building energy simulation tools and their chiller *** work takes a new type of electric water chiller as a case study and reevaluates eight typical empirically based models for predicting the energy performance of electric water chiller to verify whether they are suitable for the new type of chiller,using both laboratory test data from chiller manufacturer and online monitoring data from on-site operation of a central cooling plant with chillers of the same *** prediction ability of the chiller models(including model prediction accuracy and generation ability)in laboratory test and on-site operation situations are *** results show that the existing models can well describe the chiller performance in the laboratory test situation but perform poorly in the on-site operation *** the best two models in the laboratory dataset,the overall prediction errors of DOE-2 and GN model increase more than 250%and 75%respectively in the field *** big discrepancy of model prediction accuracy in the two situations is mainly due to the differences of evaporator and condenser water flow rates between the laboratory and on-site operation datasets,which indicates the limitations of the empirical chiller models and implies further research in future in order to improve the suitability and reliability of chiller model.

关键词： electric water chiller performance model model validation model prediction ability variable water flow rates

Landslide susceptibility assessment using the certainty factor and analytic hierarchy process

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Journal of Mountain Science 2017年第5期14卷 906-925页

作者： FAN Wen WEI Xin-sheng CAO yan-bo ZHENG bin Department of Geological Engineering Chang'an University Xi'an 710054 China

A new approach combining the certainty factor(CF) and analytic hierarchy process(AHP) methods was proposed to assess landslide susceptibility in the Ziyang district, which is situated in the Qin-Ba Mountain region, China. Landslide inventory data were collected based on field investigations and remote sensing interpretations. A total of 791 landslides were identified. A total of 633 landslides were randomly selected from this data setas the training set, and the remaining landslides were used for validation as the test set. Nine factors, including the slope angle, slope aspect, slope curvature, lithology, distance to faults, distance to streams, precipitation, road network intensity degree and land use were chosen as the landslide causal factors for further susceptibility assessment. The weight of each factor and its subclass were calculated by AHP and CF methods. Landslide susceptibility was compared between the bivariate statistical method and the proposed CF-AHP method. The results indicate that the distance to streams, distance to faults and lithology are the most dominant causal factors associated with landslides. The susceptibility zonation was categorized into five classes of landslide susceptibility, i.e., very high, high, moderate, low and very low level. Lastly, the relative operating characteristics(ROC) curve was used to validate the accuracy of the new approach, and the result showed a satisfactory prediction rate of 78.3%, compared to 69.2% obtained with the landslide susceptibility index method. The results indicate that the CF-AHP combined method is more appropriate for assessing the landslide susceptibility in this area.

关键词： Ziyang district Landslide Certainty factor Analytic hierarchy process Susceptibility assessment ArcGIS