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Magic-sized CdSe nanoclusters for efficient visible-light-driven hydrogen evolution

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Nano Research 2022年第4期15卷 3106-3113页

作者： Ping Wang Qingqing Yang Chen Xu Bo Wang Huan Wang jidong zhang Yongdong Jin State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun 130022China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences5625 Renmin StreetChangchun 130022China University of Science and Technology of China No.96JinZhai RoadHefei 230026China School of Materials Science and Engineering Jilin Jianzhu University5088 Xincheng StreetChangchun 130118China

Semiconductor magic-sized nanoclusters have got tremendous interests owing to their distinct chemical and photophysical properties,however,researches concerning their applications are still quite ***,we employ magic-sized CdSe nanoclusters as the light absorber for hydrogen photogeneration,which exhibits much better photocatalytic performance as compared to other conventional semiconductor quantum dots,such as CdS,CdSe,CdS/CdSe,and CdSe/CdS under identical *** lifetime and transient absorption studies indicated that the superior activity is mainly ascribed to the longer exciton lifetime and fast electron transfer from nanoclusters to ***,the issue of instability during reaction could be significantly inhibited by anchoring Zn2+onto the surface of nanoclusters,which gives the average efficacy of hydrogen evolution at 0.61±0.07 mL·h^(-1)·mgcatalyst^(-1),i.e.,27.3±2.9 mmol·h^(-1)·g_(catalyst)^(-1)(420 nm)with maintained 95.2%of original activity over 12 h illumination.

关键词： magic-sized nanoclusters CdSe photocatalysis hydrogen

Corpus-Based Study of Swearing in Spoken British English

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Journal of Donghua University(English Edition) 2019年第1期36卷 106-112页

作者： zhang jidong LI Shuang School of English Studies Shanghai International Studies University

Swearing constitutes an important part of daily language use. However, despite several previous studies with foci on the social and cultural characteristics of swearwords, a large part of it remains to be investigated. With the abundant spoken language resources from British National Corpus(BNC), this article observes the pragmatic and collocational features of swearwords. Three social variables, namely, social class, speech domain, and gender were put under investigation to see how the use of swearwords varies with different speech social contexts. Meanwhile, the noun and adjective collocates of several frequent swearwords were separately sorted out and discussed. The data observed show that the use of swearwords is highly related to different social contexts, and there exits certain level of differentiation between different swearwords used as intensifiers which can be generalized lexicographically.

关键词： swearing corpus linguistics British National Corpus(BNC) pragmatics collocation

Financial Pressure,Economic Stimulus and Land Transfer with the Aim of Attracting Investment-Empirical Evidence Based on Micro Data of Industrial Land

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China Finance and Economic Review 2020年第3期9卷 50-72页

作者： Shouwei Qi Hui Mao jidong zhang School of Public Finance and Taxation Zhongnan University of Economics and Law

Although China’s local governments are facing greater financial pressure,they often sell industrial land at low prices to attract *** government land transfer strategies refl ect driving mechanisms of officials’*** on the micro data of about 340000 industrial land sales in 289 prefecture-level cities in China from 2006 to 2015,this paper divides industrial land transfer into two categories,namely land transfer with the aim of attracting investment and normal transfer,according to whether the transfer price is lower than the minimum price stipulated by central *** paper explores the strategies of industrial land transfer under financial pressure and the motivation differences of officials with the help of changes in local land transfers after the introduction of economic stimulus *** is found that financial pressure will signifi cantly reduce local industrial land transfer with the aim of investment ***,after the introduction of economic stimulus policies,although financial pressure has increased,the infl uence of financial pressure on local governments’investment-induced land transfer behavior significantly weakened due to the increase of out-of-system financing channels,thus industrial land transfer with the aim of attracting investment has increased signifi *** the perspective of promotion incentives of officials,officials with longer term were more inclined to sell industrial land to attract ***,it is necessary to rationally arrange the financial resources and powers of central and local governments,to adapt reasonable macro control method and strategy,and to build an offi cial evaluation system that meets the needs of high-quality development.

关键词： financial pressure land transfer with the aim of attracting investment industrial land transfer economic stimulus promotion incentive

Pore structure characteristics of low-rank coal reservoirs with different ash yields and their implications for recoverability of coalbed methane—a case study from the Erlian Basin, northeastern China

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Frontiers of Earth Science 2023年第1期17卷 18-29页

作者： Dawei DONG Jiaosheng YANG Qiujia HU Shitao CUI Fenjin SUN jidong zhang Xinrui CUI Shandong Institute of Petroleum and Chemical Technology Dongying 257061China PetroChina Research institute of petroleum exploration and development Beijing 100083China Shanxi CBM Exploration and Development Branch PetroChina Huabei Oilfield CompanyChangzhi 046000China China National Logging Corporation Xi’an 710077China

Pores are the main accumulation sites and migration pathways for coalbed methane(also referred to as CBM).Pore structure restricts the content and recoverability of CBM from coal *** this study,12 representative coal samples with different ash yields that have similar tectonic characteristics and burial depths were collected from different mining areas in the Jiergalangtu and Huolinhe depressions in the Erlian *** samples were used to study the restrictions of ash yield on the characteristics of coal pore structures and the recoverability of CBM through macroscopic and microscopic structure observation,scanning electron microscope observations,vitrinite reflectance tests,low-temperature N2 adsorption,nuclear magnetic resonance(NMR),and micro-computed *** results show that coal reservoirs in the study area vary greatly in ash yield,based on which they can be divided into three types,i.e.,low-ash-content,ash-bearing,and high-ash-content coal *** addition,the ash yield has a certain impact on the development of coal pores;coal samples with lower ash yields indicate the presence of well-developed medium-large pores and better *** yield also has a certain impact on the brittleness of coal wherein a lower ash yield implies the development of brittle coal that is more liable to fracture as compared to less brittle samples at the same *** gas content also varies significantly with ash yield;a low ash yield impacts the gas saturation of ***,for coal reservoirs in the study area,their porosity,pore diameter,movable fluid porosity,adsorbed gas amount,and recoverability decrease as the ash yield increases.

关键词： coal reservoir ash pore structure recoverability Erlian Basin

海外某新建脱气站场区应急疏散及防火设计分析

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石油化工安全环保技术 2024年第4期40卷 23-25,I0002页

作者：张吉东李修峰贾廷亮中海油安全技术服务有限公司天津300450

中东地区的油气产业不仅对当地经济发展至关重要,还对全球能源供应产生深远的影响。脱气站作为该地区至关重要的油气生产设施,对油气产量的影响至关重要。为确保该地区脱气站设备的完整性和场站人员的生命安全,深入研究分析了脱气站的... 详细信息

中东地区的油气产业不仅对当地经济发展至关重要,还对全球能源供应产生深远的影响。脱气站作为该地区至关重要的油气生产设施,对油气产量的影响至关重要。为确保该地区脱气站设备的完整性和场站人员的生命安全,深入研究分析了脱气站的应急疏散和防火设计,旨在评估脱气站的火灾防范和应急疏散能力,为提升火灾风险管理水平提供合理化建议。

关键词：脱气站应急疏散防火设计

Near infrared electrochromicvariable optical attenuator based on ruthenium complexand polycrystalline tungsten oxide

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Chinese Science Bulletin 2005年第23期50卷 2688-2690页

作者： zhang jidong WU Xianguo YU Hongan YAN Donghang WANG Zhiyuan Changchun Institute of Applied Chemistry Changchun 130022 China Department of Chemistry Carleton UniversityOttawa Canada K1S 5B6

A near infrared (NIR) electrochromic attenu-ator based on a dinuclear ruthenium complex and polycrys-talline tungsten oxide was fabricated and characterized. The results show that the use of the NIR-absorbing ruthenium complex as a counter electrode material can improve the device performance. By replacing the visible electrochromic ferrocene with the NIR-absorbing ruthenium complex, the optical attenuation at 1550 nm was enhanced from 19.1 to 30.0 dB and color efficiency also increased from 29.2 to 121.2 cm2/C.

关键词：近红外线镀铬衰减器双核钌化合物多晶氧化钨光学衰减器

Investigation of vacuum performances of TiZrV coated pipe

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Nuclear Science and Techniques 2011年第6期22卷 326-329页

作者： zhang Haiou DAI Dongdong TANG Ziyi zhang jidong SHAO Bin HE Suixia Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China

Some metal compounds called as Non-Evaporable-Getter have been widely used to improve vacuum system performance of accelerator *** this paper,a TiZrV film on the surface of stainless steel vacuum pipe is made by direct current magnetron sputtering,and its vacuum performance is experimentally *** results show that the TiZrV film is partly activated at 160℃,and its pressure performance is similar with one at higher temperature. The coating reduces the ultimate pressure and prominently shortens the pressure-down time in a sputter ion pump system,thus creating evenly distributed pressure profile in a coating *** adsorption rate is steady,and adsorption amount increases *** TiZrV-coated pipe behaves like pump other than gas source in vacuum system.

关键词：高真空系统涂层管直流磁控溅射压力剖面表演真空性能金属化合物不锈钢管

急性病毒性肝炎患者凝血四项、血脂指标水平及其预后评估价值分析

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临床误诊误治 2024年第11期37卷 52-57页

作者：武云慧董敬超张雪棉曹立华张继东苗亮秦皇岛市第三医院检验科 066000 秦皇岛市第三医院超声影像科 066000 秦皇岛市第三医院肝病科 066000

目的分析急性病毒性肝炎(AVH)患者凝血四项、血脂指标水平及其评估预后的价值。方法选取2020年1月1日至2022年1月31日收治的300例AVH作为研究组,300例体检健康人员作为对照组。比较2组一般资料、凝血四项[凝血酶原时间(PT)、活化部分凝... 详细信息

目的分析急性病毒性肝炎(AVH)患者凝血四项、血脂指标水平及其评估预后的价值。方法选取2020年1月1日至2022年1月31日收治的300例AVH作为研究组,300例体检健康人员作为对照组。比较2组一般资料、凝血四项[凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、凝血酶时间(TT)、纤维蛋白原(FIB)、血脂指标[总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、三酰甘油(TG)]。研究组均行常规抗病毒、护肝治疗,比较研究组不同治疗效果患者治疗前后凝血四项、血脂指标,并分析治疗前凝血四项、血脂指标与治疗效果的相关性及预测治疗效果的价值。结果研究组外周血PT、APTT、TT长于对照组,FIB、TC、HDL-C、LDL-C水平低于对照组,TG水平高于对照组(P<0.01)。研究组治疗效果为无效患者治疗前、治疗后外周血PT、APTT、TT长于有效、显效患者,有效患者长于显效患者(P<0.05);FIB、TC、HDL-C、LDL-C水平低于有效、显效患者,有效患者低于显效患者,TG水平高于有效、显效患者,有效患者高于显效患者(P<0.05);研究组治疗后外周血PT、APTT、TT、TG水平与治疗效果呈负相关,FIB、TC、HDL-C、LDL-C与治疗效果呈正相关(P<0.05,P<0.01);治疗前凝血四项与血脂指标联合预测AVH患者治疗效果的曲线下面积为0.937(95%CI为0.903,0.962),预测敏感度、特异度分别为85.21%、88.61%,明显优于凝血四项、血脂指标单独预测(P<0.01)。结论AVH患者凝血四项、血脂指标存在明显异常,且治疗前凝血四项与血脂指标联合检测在预测治疗效果方面具有较高价值。

关键词：急性肝炎,病毒性凝血酶原时间凝血酶时间纤维蛋白原总胆固醇高密度脂蛋白胆固醇相关性预测价值

The improved performance in the ternary bulk heterojunction solar cells

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Science China(Physics,Mechanics & Astronomy) 2013年第3期56卷 530-534页

作者： QIN DaShan LI GuiFang QUAN Wei CHEN Lei LIU JinSuo zhang jidong YAN DongHang Institute of Polymer Science and Engineering School of Chemical EngineeringHebei University of Technology State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences

The ternary blend films have been fabricated via adding 4,4’-N,N’-dicarbazole-biphenyl(CBP,a hole transport material widely used in organic light emitting diodes) into the poly(3-hexylthiophene):[6,6]-phenyl C 61-butyric acid methyl ester(P3HT:PCBM).Despite the wide bandgap(3.1 eV) of the CBP,the solar cell utilizing the optimized P3HT:PCBM:CBP blend film showed an increase of 16% in power conversion efficiency and 25% in short-circuit current than the compared standard P3HT:PCBM blend *** is attributed to the fact that the addition of the CBP could enhance the aggregation of the P3HT chains and thereby reduce the hole-electron recombination at the interface of P3HT and *** provide a simple,effective way to improve the performance of P3HT based bulk heterojunction solar cells.

关键词： bulk heterojunction organic solar cells ternary blend films CBP