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Challenge and opportunity of ionic liquidsdAn interview with *** ***

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Green Energy & Environment 2020年第2期5卷 243-245页

作者： jing kong Hongyan He Institute of Process Engineering Chinese Academy of SciencesBeijing100190China Green Energy&Environment(GEE)Editorial Office China

Expert Profile:*** *** is an Australian Laureate Fellow at Monash University's School of Chemistry and leader of the Energy Program in the Australian Centre for Electromaterials *** is the Australian Academy of Scienc... 详细信息

关键词： interview Australian opportunity

An Overview of Metal-Organic Frameworks for Green Chemical Engineering

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Engineering 2021年第8期7卷 1115-1139页

作者： Xiang-jing kong Jian-Rong Li Beijing Key Laboratory for Green Catalysis and Separation&Department of Environmental Chemical Engineering Beijing University of TechnologyBeijing 100124China

Given the current global energy and environmental issues resulting from the fast pace of industrialization,the discovery of new functional materials has become increasingly imperative in order to advance science and technology and address the associated *** boom in metal–organic frameworks(MOFs)and MOF-derived materials in recent years has stimulated profound interest in exploring their structures and *** preparation,characterization,and processing of MOF materials are the basis of their full engagement in industrial *** intensive research in these topics,it is time to promote the practical utilization of MOFs on an industrial scale,such as for green chemical engineering,by taking advantage of their superior *** famous MOFs have already demonstrated superiority over traditional materials in solving real-world *** review starts with the basic concept of MOF chemistry and ends with a discussion of the industrial production and exploitation of MOFs in several *** goal is to provide a general scope of application to inspire MOF researchers to convert their focus on academic research to one on practical *** the obstacles of cost,scale-up preparation,processability,and stability have been overcome,MOFs and MOF-based devices will gradually enter the factory,become a part of our daily lives,and help to create a future based on green production and green living.

关键词： Metal-organic frameworks(MOFs) Application Green chemical engineering

Enhanced roasting of lepidolite for high defluorination efficiency in a fluidized bed reactor

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Particuology 2020年第5期18卷 28-35页

作者： Jun Li jing kong Qingshan Zhu Hongzhong Li State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

Defluorination roasting of lepidolite ore in a fluidized bed reactor has been proposed for improving the extraction efficiency of *** this paper,a vacuum was introduced to the fluidized bed reactor,which significantly improved the defluorination efficiency of lepidolite *** improvement could be attributed to an increase in the H2O/HF *** highest defluorination rate for the lepidolite particles was obtained in the fluidized bed reactor under *** rate in the vacuum reactor was 1.5-2 times that in a fixed bed reactor or conventional fluidized bed *** defluorination efficiency of the lepidolite particles also improved and the consumption of steam was greatly reduced by addition of coal *** enhancement was mainly attributed to changes in the structures of the reduced lepidolite *** defluorination roasting method for high lithium extraction with low water steam consumption is a promising method for lithium ore treatment.

关键词： Vacuum fluidized bed Defluorination roasting Lepidolite Lithium

Target versus sub-target dose of renin–angiotensin system inhibitors on survival in elderly patients with heart failure with reduced ejection fraction: a systematic review and meta-analysis

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Journal of Geriatric Cardiology 2023年第6期20卷 469-478页

作者： Long-Kun SUN jing kong Xiao-Wei YANG jing WANG Peng-Fei ZHANG The Key Laboratory of Cardiovascular Remodeling and Function Research Chinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesThe State and Shandong Province Joint Key Laboratory of Translational Cardiovascular MedicineDepartment of CardiologyQilu HospitalCheeloo College of MedicineShandong UniversityJinanChina

BACKGROUND The efficiency of the target versus sub-target dose of renin–angiotensin system inhibitors(RASIs)in elderly patients with heart failure(HF)with reduced ejection fraction(HErEF)remains *** PubMed,Embase,and the Cochrane Central Register of Controlled Trials were searched from database inception through March 2022 for randomized controlled trials(RCTs)and observational studies considering the effect of the target versus sub-target dose of RASIs on survival in elderly patients(≥60 years)with *** primary outcome was all-cause *** secondary outcomes were cardiac mortality,HF hospitalization,and the composite endpoint of mortality or HF hospitalization.A meta-analysis was conducted to generate combined hazard ratio(HR)and 95%*** Seven studies(two RCTs and five observational studies)enrolling 16,634 patients were included.A pooled analysis suggested that the target versus sub-target dose of RASIs led to lower rates of all-cause mortality(HR=0.92,95%CI:0.87–0.98,I2=21%)and cardiac mortality(HR=0.93,95%CI:0.85–1.00,I2=15%)but not reduced rates of HF hospitalization(HR=0.94,95%CI:0.88–1.01,I2=0)and the composite endpoint(HR=1.03,95%CI:0.91–1.15,I2=51%).However,the target dose of RASIs was associated with a similar primary outcome(HR=0.85,95%CI:0.64–1.14,I2=0)in a subgroup of very elderly patients>75 years of *** Our analysis suggests that the target dose of RASIs has a better survival benefit in elderly patients with HFrEF compared to the sub-target dose of ***,the sub-target dose of RASIs is associated with a similar mortality rate in very elderly patients>75 years of *** high-quality and adequately powered RCTs are warranted.

关键词： patients analysis fraction

Initial precursor reaction mechanism of CVD-HfC coating based on density functional theory

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Chinese Journal of Aeronautics 2024年第7期37卷 511-521页

作者： Yunzhou LIN Yulei ZHANG Yanqin FU Jian ZHANG jing’an kong Ruicong CHEN State Key Laboratory of Solidification Processing Carbon/Carbon Composites Research CenterNorthwestern Polytechnical UniversityXi’an 710072China Henan Key Laboratory of High Performance Carbon Fiber Reinforced Composites Carbon Matrix Composites Research InstituteHenan Academy of SciencesZhengzhou 450046China

Recently,the preparation of ultra-high temperature HfC ceramic coating has gained significant attention,particularly through the application of the HfCl_(4)-CH_(4)-H_(2)-Ar system via Chemical Vapor Deposition(CVD),which has been found widely applied to C/C ***,an analysis of the reactions that occur in the initial stage of the CVD-HfC coating process is presented using Density Functional Theory(DFT)and Transition State Theory(TST)at the B3LYP/Lanl2DZ *** results reveal that HfCl4 can only cleave to produce hypochlorite,which will further react with methyl to synthesize intermediates to form *** to the analysis of the energy barrier and reaction constant,HfCl preferentially reacts with methyl groups to form complex adsorptive intermediates at 1573 *** a C—Hf bond production energy of 212.8 kcal/mol(1 kcal=4.18 kJ),the reaction rate constant of HfCl+CH is calculated to be 2.15×10^(-18) cm^(3)/s at 1573 ***,both the simulation and experimental results exhibit that the upward trend of reaction rate constants with temperature is also consistent with the deposition rate,indicating that the growth curve of the reaction rate constants tends to flatten *** proposed reaction model of the precursor’s decomposition and reconstruction during deposition process has significant implication for the process guidance.

关键词： Carbon composite HfC coating Chemical vapor deposition Density functional theory Precursor reaction mechanism

Obstructive jaundice and melena caused by hemocholecyst: A case report

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World Journal of Gastroenterology 2013年第13期19卷 2126-2128页

作者： Ying Fan Shuo-Dong Wu jing kong the Second Department of General Surgery Shengjing Hospital of China Medical University

A hemocholecyst (HC) is a clot-filled gallbladder caused by bleeding into its lumen. Obstructive jaundice caused by the compression of HC to the hilar biliary tract is likely to be misdiagnosed as cholangiocarcinoma and is extremely rare. We herein report a case of obstructive jaundice and melena caused by HC. A 57-year-old male patient presented with right upper quadrant pain associated with icteric sclera and melena was suspiciously diagnosed as having malignant cholangiocarcinmoa by abdominal ultrasonography, computed tomography and magnetic resonance imaging. Laparotomy found a hematoma in the gallbladder. The hematoma spread to the left hepatic lobe forming an exogenous mass which compressed the hilar biliary tract. Radical cholecystectomy and bile duct exploration with T-tube drainage were performed. Histopathological examination revealed massive necrosis of the gallbladder mucosa with inflammatory cells infiltration as well as intraluminal hematoma formation. One month after operation, a T-tube cholangiography revealed a normal biliary tree. We suggest that HC should be considered in patients with obstructive jaundice and melena after common causes are ruled out.

关键词： Hemocholecyst Biliary tract Obstruction Jaundice Melena

Sequential Big Data-Based Macroeconomic Forecast for Industrial Value Added

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Communications in Mathematics and Statistics 2019年第4期7卷 445-457页

作者： Yunli Yang jing kong Lu Yang Zhouwang Yang University of Science and Technology of China HefeiChina

Macroeconomic situation is the overall performance of a country’s and regional economic *** present,the vast majority of macroeconomic indicators are obtained through sampling surveys,step-by-step reporting,statistical calculations,and other processes,which are publicly released by the Statistical *** are some shortcomings,such as lag and *** forecasting and early warning of macroeconomic trends are the important needs of government ***,the timeliness of data has a direct impact on government *** this paper,the high frequency and relatively accurate big data sources are adopted to construct a multivariate regression prediction model for traditional national economic accounting indicators(such as industrial value added above the scale of Hefei),which is different from the traditional time series prediction model such as ARIMA *** on the macroeconomic prediction model of time series big data,multi-latitude data sources,sequential update,verification set screening model and other strategies are used to provide more reliable,timely,and easy-to-understand forecasting values of national economic accounting *** the same time,the potential influencing factors of macroeconomic indicators are excavated to provide data and theoretical basis for macroeconomic analysis and decision-making.

关键词： Macroeconomics Time series big data Sequential update Multivariate regression prediction

Colossal switchable photocurrents in topological Janus transition metal dichalcogenides

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npj Computational Materials 2021年第1期7卷 284-292页

作者： Haowei Xu Hua Wang Jian Zhou Yunfan Guo jing kong Ju Li Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMAUSA Department of Electrical Engineering and Computer Science Massachusetts Institute of TechnologyCambridgeMAUSA Department of Materials Science and Engineering Massachusetts Institute of TechnologyCambridgeMAUSA

Nonlinear optical properties,such as bulk photovoltaic effects,possess great potential in energy harvesting,photodetection,rectification,*** enable efficient light–current conversion,materials with strong photo-responsivity are highly *** this work,we predict that monolayer Janus transition metal dichalcogenides(JTMDs)in the 1T′phase possess colossal nonlinear photoconductivity owing to their topological band mixing,strong inversion symmetry breaking,and small electronic bandgap.1T′JTMDs have inverted bandgaps on the order of 10 meV and are exceptionally responsive to light in the terahertz(THz)*** first-principles calculations,we reveal that 1T′JTMDs possess shift current(SC)conductivity as large as 2300 nmμA V^(−2),equivalent to a photo-responsivity of 2800 mA/*** circular current(CC)conductivity of 1T′JTMDs is as large as∼104 nmμA V^(−2).These remarkable photo-responsivities indicate that the 1T′JTMDs can serve as efficient photodetectors in the THz *** also find that external stimuli such as the in-plane strain and out-of-plane electric field can induce topological phase transitions in 1T′JTMDs and that the SC can abruptly flip their *** abrupt change of the nonlinear photocurrent can be used to characterize the topological transition and has potential applications in 2D optomechanics and nonlinear optoelectronics.

关键词： topological transition nonlinear

New Polypeptides from Chinese Mistletoe, Viscum coloratum (Kom.) Nakai

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Chinese Chemical Letters 2006年第1期17卷 41-44页

作者： Shi Lei LIU Xiu Bao DU jing Lin kong Research Institute of Chemical Defense Beijing 102205

Three viscotoxins have been isolated from Chinese mistletoe, Viscum coloratura （Kom.） Nakai. The primary structures were determined unambiguously by the combination of Edman degradation, endoproteinase Elu-c digestion, and Q-TOF mass spectrometry. One was identified as viscotoxin C1, which was for the first time isolated from Chinese mistletoe. The other two were new polypeptides, named as viscotoxin B5 and viscotoxin B8. Pharmacological studies showed that the polypeptides exhibit distinct cytotoxicity to human cancer cells.

关键词： Viscum coloratura mistletoe isolation primary structure viscotoxin.