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Air Pollution, Government Pollution Regulation, and Industrial Production in China

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系统科学与复杂性学报：英文版 2020年第4期33卷 1064-1079页

作者： CAO dong RAMIREZ Carlos d. School of Economics and Management Xidian UniversityXi’an 710071China department of Economics George Mason UniversityFairfaxVAUnited States

Over the last four decades,a severe deterioration in air quality has accompanied China’s rapid *** a result,the Chinese government has implemented stricter policies and regulation to control air *** this paper,the authors create a measure of government policies on air pollution by tracking all pollution-related government announcements in Chinese *** authors then use this variable,along with measures of actual pollution,to investigate how air pollution,industrial production,and government policies on air pollution are *** authors conduct this investigation nationwide,as well as in five large cities in China.A vector autoregression model suggests that,nationwide,government policies seem to decrease air pollution without significantly affecting industrial ***,the effect appears to be short-lived,dissipating after a few *** addition,the authors find that the dynamic relationship among these variables differs by *** instance,following an adverse air quality shock in Beijing,government efforts to control pollution seem to have an ameliorating city-wide effect,decreasing local air pollution in subsequent *** Shanghai and Guangzhou,while the local government reacts to adverse air pollution shocks,the ameliorating effects are not statistically *** Chengdu and Shenyang,the authors detect no significant local government reaction to adverse air pollution ***,in these cities,local government policies do not impart a statistically measurable effect on air pollution.

关键词： pollution. pollution nationwide

(Super)paramagnetic nanoparticles as platform materials for environmental applications: From synthesis to demonstration

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Frontiers of Environmental Science & Engineering 2020年第5期14卷 15-23页

作者： Wenlu Li John d.Fortner department of Chemical and Environmental Engineering Yale UniversityNew HavenCT 06520USA

Over the past few decades,engineered,(super)paramagnetic nanoparticles have drawn extensive research attention for a broad range of applications based on their tunable size and shape,surface chemistries,and magnetic *** review summaries our recent work on the synthesis,surface modification,and environmental application of(super)paramagnetic *** utilizing high-temperature thermo-decomposition methods,first,we have broadly.d.monstrated the synthesis of highly monodispersed,(super)paramagnetic nanoparticles,via the pyrolysis of metal carboxylate salts in an organic *** uniform magnetic nanoparticles with various size,composition,and shape can be precisely tuned by controlled reaction parameters,such as the initial precursors,heating rate,final reaction temperature,reaction time,and the *** materials can be further rendered water stable via functionalization with surface mono/bi-layer coating structure using a series of tunable ionic/non-ionic ***,we have demonstrated platform potential of these materials for heavy metal ions sensing,sorption,and separation from the aqueous phase.

关键词： Superparamagnetic nanoparticles Surface functionalization Environmental sensing Heavy metal ion sorption

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基于三维地形匹配的月球软着陆导航方法研究

宇航学报 2011年第3期32卷 470-476页

作者：崔平远冯军华朱圣英崔祜涛北京理工大学宇航学院深空探测技术研究所北京100081 哈尔滨工业大学深空探测研究中心哈尔滨150080 西安卫星测控中心西安710043

针对月球探测器定点着陆任务的需要,研究了基于三维地形匹配的导航方法。对三维地形匹配问题,将高程方差图局部极值点作为三维地形特征,在构建地形特征之间的相对位置与角度不变量的基础上,提出了基于投票的三维地形匹配策略。针对测量... 详细信息

针对月球探测器定点着陆任务的需要,研究了基于三维地形匹配的导航方法。对三维地形匹配问题,将高程方差图局部极值点作为三维地形特征,在构建地形特征之间的相对位置与角度不变量的基础上,提出了基于投票的三维地形匹配策略。针对测量噪声统计特性的不确定性,将Sage-Husa噪声估计算子与迭代卡尔曼滤波相结合,通过对测量噪声进行在线估计有效避免滤波精度下降甚至滤波发散的出现。数字仿真结果表明所研究的导航方法能够有效地实现探测器相对位置和姿态的精确估计。

关键词：月球软着陆视觉导航地形匹配位姿估计

Assessment of solar-assisted electrooxidation of bisphenol AF and bisphenol A on boron-doped diamond electrodes

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Environmental Science and Ecotechnology 2020年第3期3卷 23-31页

作者： Jing ding Lingjun Bu Bingxin cui Guanshu Zhao Qingwei Gao Liangliang Wei Qingliang Zhao dionysios d.dionysiou State Key Laboratory of Urban Water Resources and Environment(SKLUWRE) School of EnvironmentHarbin Institute of TechnologyHarbin150090China department of Water Engineering and Science College of Civil EngineeringHunan UniversityChangsha410082China Environmental Engineering and Science Program Department of Chemical and Environmental EngineeringUniversity of CincinnatiCincinnatiOH45221USA

Bisphenol(BP)analogues in wastewater effluent and groundwater pose a potential threat to human health due to their ability to disrupt steroidogenesis.A new solar-assisted electrochemical process(SECP)was developed and evaluated for the degradation of BP *** effects of quenchers,current density,initial pH,supporting electrolyte,and aqueous matrix on the removal kinetics of bisphenol AF(BPAF)and bisphenol A(BPA)were *** kinetic constants of BPAF,BPA,and bisphenol S(BPS)in the SECP with irradiation intensity of 500 mW cm^(-2) were 0.017±0.002 min^(-1),0.022±0.002 min^(-1),and 0.012±0.001 min^(-1),*** changes in the degradation rates of BPAF,BPA,and BPS in the presence of quenchers indicated the relative contribution of hydroxyl radical(·OH)oxidation,anodic electrolysis,and singlet(^(1)O_(2))oxygenation in the degradation of BPs in the *** enhanced rate of generation of ·OH and ^(1)O_(2) was observed in the SECP compared with those in the conventional electrochemical *** identification of the transformation products(TPs)of BPAF demonstrated that hydroxylation,ring cleavage,b-scission,and defluorination were the major processes during the oxidation in the *** conversion to fluoride ions(76%)and mineralization of total organic carbon(72%)in the SECP indicated further degradation of *** results from this study improved our understanding of the degradation of BP analogues in the electrooxidation irradiated by solar light and help to establish the application potential of the SECP for the effective degradation of emerging contaminants in wastewater.

关键词： Electrochemical process Solar Radicals Bisphenol AF Wastewater treatment

Corrosion protection of AZ91 magnesium alloy in cooling systems

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Transactions of Nonferrous Metals Society of China 2013年第9期23卷 2577-2584页

作者： d. SEIFZAdEH H. BASHARNAVAZ Physical Chemistry Research Laboratory Applied Chemistry Department Faculty of Science University of Mohaghegh Ardabili

The effect of a salicylic Schiff base componnd （Salcn） on the corrosion of AZ91 alloy in 30% ethylene glycol aqueous solution （30% EG/W） was investigated by electrochemical methods. Scanning electron microscope was used to observe the alloy surface in corrosive solution before and after the addition of inhibitor. There was no significant corrosion inhibition at the room temperature but high inhibition efficiencies were obtained at elevated temperatures due to the formation of chemisorbed inhibitor monolayer. As the inhibitor concentration increased, the inhibition efficiency increased probably.d.e to more inhibitor adsorption on the alloy surface.

关键词： AZ90 magnesium alloy ethylene glycol aqueous solution corrosion inhibition

胫骨骨折采用3d打印外固定架治疗的临床应用价值研究

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智慧健康 2020年第26期6卷 74-76页

作者：崔斌吉林省敦化市中医院吉林敦化133700

目的分析胫骨骨折采用3d打印外固定架治疗的临床应用价值。方法择取2016年8月至2020年5月接受治疗的40例胫骨骨折患者予以研究,按随机数表法分为观察组(3d打印治疗)和对照组(常规治疗),各20例。分析患者手术时间及术中出血量、并发症发... 详细信息

目的分析胫骨骨折采用3d打印外固定架治疗的临床应用价值。方法择取2016年8月至2020年5月接受治疗的40例胫骨骨折患者予以研究,按随机数表法分为观察组(3d打印治疗)和对照组(常规治疗),各20例。分析患者手术时间及术中出血量、并发症发生率、生活质量评分、手术效果。结果(1)观察组手术时间及出血量少于对照组,差异具有统计学意义(Pd打印技术能够达到较好的复位效果,减少并发症发生率。

关键词：胫骨骨折 3d打印应用价值外固定架治疗

债务期限结构与民营企业研发投资——基于银企关联的视角

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系统工程理论与实践 2017年第7期37卷 1780-1792页

作者：唐玮孙春兴崔也光安徽财经大学会计学院蚌埠233030 北京航空航天大学经济管理学院北京100191 首都经济贸易大学会计学院北京100070

民营制造业拥有较强的创新热情和创新能力,但同时也面临着严重的融资约束和信贷歧视.基于此,本文采用A股民营制造业上市公司数据,从银企关联的视角实证检验了不同期限结构的融资性负债对企业研发投资的影响.研究发现:银企关联的存在明... 详细信息

民营制造业拥有较强的创新热情和创新能力,但同时也面临着严重的融资约束和信贷歧视.基于此,本文采用A股民营制造业上市公司数据,从银企关联的视角实证检验了不同期限结构的融资性负债对企业研发投资的影响.研究发现:银企关联的存在明显削弱了短期、长期负债对于研发投资的约束,且对长期融资性负债的作用更为显著;进一步区分银企关联结构的检验发现,相对于高管关联,持股关联在其中的作用更显著,且对于小型公司、高科技公司及金融生态环境较差地区公司的影响更大.特别地,我们还发现建立持股关联的小型公司、高科技公司,其短期负债的约束作用同样被显著削弱.本文的研究结论更加深入地阐释了银企关联在中国民营企业创新中的重要作用,为这种非正式制度对市场化的替代作用及其合理性提供了证据支持,并丰富了金融发展、融资约束与企业创新领域的研究视角及相关文献.

关键词：融资性负债高管关联持股关联研发投资金融生态环境

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共产国际柏林西欧书记处活动研究

当代世界社会主义问题 2024年第2期 42-52,165页

作者：曹漩 [德]维克多·杰宁豪斯北京师范大学历史学院北京100875 国汉堡大学东北欧德意志历史与文化研究所德国吕讷堡21335

俄国十月革命后,俄共(布)将德国作为欧洲革命的桥头堡,在柏林设立西欧书记处,由共产国际著名活动家雅科夫·赖希领导。书记处肩负为欧洲乃至世界革命提供现实保障的使命,在德国进行了一系列机密性活动,包括在西欧建立共产国际网络,向欧... 详细信息

俄国十月革命后,俄共(布)将德国作为欧洲革命的桥头堡,在柏林设立西欧书记处,由共产国际著名活动家雅科夫·赖希领导。书记处肩负为欧洲乃至世界革命提供现实保障的使命,在德国进行了一系列机密性活动,包括在西欧建立共产国际网络,向欧洲左翼政党提供宣传材料和政治咨询等。其中,书记处最重要的作用是用苏俄外汇资助西方的共产党和左翼人士,充当共产国际在德国乃至整个西欧的地下经费中转站的角色。这些活动是共产国际初期实践的重要组成部分,为苏俄打破外国封锁和传播共产主义理论提供了巨大帮助。但值得注意的是,书记处在组织管理方面较为松散灵活,体现出共产国际过渡时期的特点。这主要是由欧洲局势以及共产国际的策略所决定的,并不能完全归咎到经验不足上来。书记处直接推动了共产国际对自身组织及工作方式进行变革,体现出苏联以及共产国际身份的转变:如果在20世纪初,世界革命的成败被认为是保卫新生政权的先决条件,那么到了20世纪20年代中后期,情况则有所变化,苏联成了未来世界革命的保障。

关键词：柏林西欧书记处雅科夫·赖希共产国际世界革命

Limbic Encephalitis Associated with Anti-y-aminobutyric Acid B Receptor Antibodies： A Case Series from China

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Chinese Medical Journal 2015年第22期128卷 3023-3028页

作者： Hong-Zhi Guan Hai-Tao Ren Xun-Zhe yang Qiang Lu Bin Peng yi-Cheng Zhu Xiao-Qiu Shao yong-Qiang Hu dong Zhou Li-ying cui department of Neurology Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China department of Neurology Beijing Tiantan Hospital Affiliated to Capital Medical University Beijing 100050 China department of Neurology Beijing You'anmen Hospital Affiliated to Capital Medical University Beijing 100054 China department of Neurology West China Hospital Sichuan University Chengdu Sichuan 610041 China Neuroscience Center Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China

Background： Autoimmune encephalitis associated with antibodies against γ-aminobutyric acid B receptor （GABABR） in patients with limbic encephalitis （LE） was first described in 2010. We present a series of klan Chinese patients tbr further clinical refinement. Methods： Serum and cerebrospinal fluid （CSF） samples from patients referred to the program of encephalitis and paraneoplastic sy.d.ome of Peking Union Medical College Hospital were tested with indirect immunofluorescence. Clinical information of patients with anti-GABABR antibody positivity was retrospectively reviewed, and descriptive statistical analysis was performed. Results： All eighteen anti-GABABR antibody-positive cases had limbic sy.d.omes, and electroencephalogram （EEG） or neuroimaging evidence fulfilled the diagnostic criteria of LE. Four patients had additional antibodies against Hu in serum and one had anti-N-methyl-d-aspartate receptor antibody in both sera and CSF. Seventeen （17/18） patients presented with new-onset refractory seizure or status epileptics. Twelve （12/18） patients had memory.d.ficits, 11 （11/18） patients had personality change, 7 （7/18） patients had disturbance of consciousness, and 3 （3/18） patients showed cerebellar dysfunction. One patient with LE had progressive motor and sensory polyneuropathy. Lung cancer was detected in 6 （6/18） patients. Ten （10/18） patients showed abnormality in bilateral or unilateral mediotemporal region on magnetic resonance imaging. Ten （10/18） patients had temporal lobe epileptic activity with or without general slowing on EEG. Seventeen patients received immunotherapy and 15 of them showed neurological improvement. Four patients with lung cancer died within 1-12 months due to neoplastic complications. Conclusions： Our study.d.monstrates that most Han Chinese patients with anti-GABABR antibody-associated LE have prominent refractory epilepsy and show neurological improvement on immunotherapy. Patients with underlying lung tumor have a relatively poor

关键词： Anti-γ-aminobutyric Acid B Receptor Antibody Autoimmune: Limbic Encephalitis Seizure