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Simulation analysis for controlling temperature stability of a radiant-board system served for thermodynamic temperature measurement laboratory

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Building Simulation 2024年第9期17卷 1515-1529页

作者： Haoxue Liu Siqi Liu Xiuming Li Zongwei Han Haiyang Zhang Bo Gao Liaoning Engineering Research Center of Process Industry Energy Saving and Low-carbon Technologies School of MetallurgyNortheastern UniversityShenyang110819China State Key Laboratory of Cryogenic Science and Technology Beijing100190China TIPC-LNE Joint Laboratory on Cryogenic Metrology Science and Technology Technical Institute of Physics and Chemistry(TIPC)Chinese Academy of Sciences(CAS)Beijing100190China

Fundamental metrology is closely tied to scientific advancement and requires well-equipped facilities to achieve low measurement uncertainty in rigorous *** the±0.1 K high-stability temperature control issue of the precision laboratory radiant air conditioning system,this study investigated the influence of different radiant panel area ratios,laying methods,cold source water supply temperature fluctuations,and external environmental disturbances by *** results indicate that:(1)the larger the ratio of radiant panel area,the greater the fluctuation in equipment surface temperature;(2)the surface temperature of the measurement equipment can satisfy±0.1 K control temperature stability requirement when the fluctuations of the surface temperature of radiant panels and glass window are within±0.5 K and±1 K respectively without radiant panels on the ceiling;(3)the surface temperature of the measurement equipment can satisfy±0.1 K control temperature stability requirement when the fluctuations of the surface temperature of radiant panels and glass window are within±0.2 K and±2 K respectively with radiant panels on the *** study provides a reference for the design and operation control of air conditioning systems in fundamental metrology.

关键词： metrology laboratory accurate and stable radiation air conditioning system fluent simulation

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Electrocatalytic CO_(2) reduction to C_(2)H_(4): From lab to fab

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Journal of Energy Chemistry 2024年第3期90卷 540-564,I0012页

作者： Zeyu Guo Fabao Yang Xiaotong Li Huiwen Zhu Hainam Do Kam Loon Fow Jonathan D.Hirst Tao Wu Qiulin Ye Yaqi Peng Hao Bin Wu Angjian Wu Mengxia Xu Department of Chemical and Environmental Engineering and New Materials InstituteUniversity of Nottingham Ningbo ChinaNingbo 315100ZhejiangChina Key Laboratory of Carbonaceous Waste Processing and Process Intensification of Zhejiang Province University of Nottingham Ningbo ChinaNingbo 315100ZhejiangChina Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute University of Nottingham Ningbo ChinaNingbo 315100ZhejiangChina State Key Laboratory of Clean Energy Utilization Department of Energy EngineeringZhejiang UniversityHangzhou 310027ZhejiangChina Institute for Composites Science Innovation(InCSI)and State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027ZhejiangChina School of Chemistry University of NottinghamUniversity ParkNottingham NG72RDUK Baima Lake Laboratory Hangzhou 310053ZhejiangChina

The global concerns of energy crisis and climate change,primarily caused by carbon dioxide(CO_(2)),are of utmost ***,the electrocatalytic CO_(2) reduction reaction(CO_(2)RR) to high value-added multi-carbon(C_(2+)) products driven by renewable electricity has emerged as a highly promising solution to alleviate energy shortages and achieve carbon *** these C_(2+) products,ethylene(C_(2)H_(4))holds particular importance in the petrochemical ***,this review aims to establish a connection between the fundamentals of electrocatalytic CO_(2) reduction reaction to ethylene(CO_(2)RRto-C_(2)H_(4)) in laboratory-scale research(lab) and its potential applications in industrial-level fabrication(fab).The review begins by summarizing the fundamental aspects,including the design strategies of high-performance Cu-based electrocatalysts and advanced electrolyzer ***,innovative and value-added techniques are presented to address the inherent challenges encountered during the implementations of CO_(2)RR-to-C_(2)H_(4) in industrial ***,case studies of the technoeconomic analysis of the CO_(2)RR-to-C_(2)H_(4) process are discussed,taking into factors such as costeffectiveness,scalability,and market *** review concludes by outlining the perspectives and challenges associated with scaling up the CO_(2)RR-to-C_(2)H_(4) *** insights presented in this review are expected to make a valuable contribution in advancing the CO_(2)RR-to-C_(2)H_(4) process from lab to fab.

关键词： CO_(2) electroreduction reaction Ethylene Gas diffusion electrode Machine learning Density functional theory Techno-economic analysis

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Production of palmitoleic acid by oleaginous yeast Scheffersomyces segobiensis DSM 27193 using systematic dissolved oxygen regulation strategy

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Chinese Journal of Chemical engineering 2023年第1期53卷 324-331页

作者： Xinhai Zhou Dawei Zhou Xinhui Bao Yang Zhang Jie Zhou Fengxue Xin Wenming Zhang Xiujuan Qian Weiliang Dong Min Jiang Katrin Ochsenreither State Key Laboratory of Materials-Oriented Chemical Engineering College of Biotechnology and Pharmaceutical EngineeringNanjing Tech UniversityNanjing 211800China Institute of Microbiology Chinese Academy of ScienceBeijing 100101China Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM) Nanjing Tech UniversityNanjing 211800China Institute of Process Engineering in Life Sciences Section Ⅱ:Technical BiologyKarlsruhe Institute of TechnologyFritz-Haber-Weg4Karlsruhe 76131Germany

Palmitoleic acid(POA)can be naturally found only in few oil seeds and has significant applications in pharmaceutical ***,the isolated oleaginous yeast Scheffersomyces segobiensis DSM 27193 was identified with high content of POA in its intracellular lipid(13.80%).In this study,process optimization focused on dissolved oxygen regulation to improve POA production was *** agitation was found to do significant enhancement on POA-rich lipid production than aeration *** the best condition of 1000 r·min^(-1)of agitation and 1 vvm(airvolume/culture volume/min)of aeration,no ethanol was detected during the whole fermentation process,while a dry biomass concentration of 44.80 g·L^(-1)with 13.43 g·L^(-1)of lipid and 2.93 g·L^(-1)of POA was *** analysis revealed that the ethanol synthetic pathway was downregulated under the condition of high agitation,while the expression of the key enzymes responsible for lipid and POA accumulation were enhanced.

关键词： Palmitoleic acid production Scheffersomyces segobiensis Dissolved oxygen Ethanol Bioprocess Bioreactors

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Electrodeposition of Magnesium in Deep Eutectic Solvents Based on Magnesium Chloride Hexahydrate and Choline Chloride with Urea Added 3

Electrodeposition of Magnesium in Deep Eutectic Solvents Bas...

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2023 3rd International Conference on Frontiers of Electrical Power and Energy Systems, EPES 2023

作者： Chen, Qing Wang, Qian Lu, Shenghua Ecological and Environmental Protection Company China South-to-North Water Diversion Corporation Limited Beijing100036 China Key Laboratory of Cluster Science Ministry of Education of China Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials School of Chemistry Beijing Institute of Technology Beijing100081 China Beijing Key Laboratory of Ionic Liquids Clean Process Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Investment Company China Construction Fourth Engineering Division Corp. Ltd. Guangzhou510665 China

Magnesium (Mg) alloy has small density, large elastic modulus, good heat dissipation and corrosion resistance to organic matter and alkali. At present, magnesium alloy is more and more used in automotive industry, medical devices and aerospace industry. However, the traditional preparation method of Mg has the disadvantages of high investment, high labor intensity and great environmental pollution. Therefore, it is of great significance to develop simple, environment-friendly methods of the magnesium. In this study, urea was added to adjust the electrochemical property of the deep eutectic solvent (DES) mixed by choline chloride (ChCl) and magnesium chloride hexahydrate (MgCl2·6H2O). Cyclic Voltammetry (CV) curves reveals that the addition of urea made the reduction potential of Mg shifted from -0.9 V to -1.3 V. Among the CV curves, one was proposed as the "dividing line", which shows that the electroactive species in the two DESs, ChCl-MgCl2·6H2O and urea-MgCl2·6H2O, are different due to the changes of the component of the DESs. Fourier transform infrared (FTIR) data shows the type of hydrogen bond had been changed with the increase of urea content. Furthermore, the Raman spectra indicates that Mg2+ was coordinated with urea chains, which did not exist in ChCl-MgCl2·6H2O. Moreover, it was found that urea changed the electrochemical performance of the ChCl-Urea-MgCl2·6H2O by changing the hydrogen bond in the system and coordination form of the electroactive species, rather than adsorbing onto the electrode surface. Combined with geometry calculations at the B3LYP/6-311++G (d, p), the most probable mechanism of electrodeposition process was deduced. © Published under licence by IOP Publishing Ltd.

关键词： Cyclic voltammetry

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Oncoprotein LAMTOR5-mediated CHOP silence via DNA hypermethylation and miR-182/miR-769 in promotion of liver cancer growth

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中国药理学报（英文版） 2024年第12期45卷 2625-2645页

作者： Xue Wang Qian-qian Li Yan-xin Tang Ye Li Lu Zhang Fei-fei Xu Xue-li Fu Kai Ye Jia-qi Ma Shi-man Guo Fang-yuan Ma Zhi-yu Liu Xu-he Shi Xian-meng Li Hui-min Sun Yue Wu Wei-ying Zhang Li-hong Ye State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Protein SciencesDepartment of Biochemistry and Molecular BiologyCollege of Life SciencesNankai UniversityTianjin 300071China State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Protein SciencesDepartment of Biochemistry and Molecular BiologyCollege of Life SciencesNankai UniversityTianjin 300071China Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Biomedical Engineering Tianjin 300192China State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Protein SciencesDepartment of Biochemistry and Molecular BiologyCollege of Life SciencesNankai UniversityTianjin 300071China Institute of Radiation Medicine Peking Union Medical College & Chinese Academy of Medical SciencesTianjin 300192China State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Protein SciencesDepartment of Biochemistry and Molecular BiologyCollege of Life SciencesNankai UniversityTianjin 300071China Center for Cell Structure and Function Shandong Provincial Key Laboratory of Animal Resistance BiologyCollaborative Innovation Center of Cell Biology in Universities of ShandongCollege of Life SciencesShandong Normal UniversityJinan 250014China

C/EBP homologous protein(CHOP)triggers the death of multiple cancers via endoplasmic reticulum(ER)***,the function and regulatory mechanism of CHOP in liver cancer remain *** have reported that late endosomal/lysosomal adapter,mitogen-activated protein kinase and mTOR activator 5(LAMTOR5)suppresses apoptosis in various ***,we show that the transcriptional and posttranscriptional inactivation of CHOP mediated by LAMTOR5 accelerates liver cancer *** bioinformatic analysis revealed that the expression of CHOP was low in liver cancer tissues and that its increased expression predicted a good *** CHOP contributed to destruction of LAMTOR5-induced apoptotic suppression and ***,LAMTOR5-recruited DNA methyltransferase 1(DNMT1)to the CpG3 region(-559/-429)of the CHOP promoter and potentiated its hypermethylation to block its interaction with general transcription factor Ⅱi(TFⅡ-Ⅰ),resulting in its ***,LAMTOR5-enhanced miR-182/miR-769 reduced CHOP expression by targeting its 3'***,lenvatinib,a first-line targeted therapy for liver cancer,could target the LAMTOR5/CHOP axis to prevent liver cancer ***,LAMTOR5-mediated silencing of CHOP via the regulation of ER stress-related apoptosis promotes liver cancer growth,providing a theoretical basis for the use of lenvatinib for the treatment of liver cancer.

关键词： liver cancer CHOP LAMTOR5 lenvatinib DNA methylation miR-182/miR-769

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High-performance Si-Containing anode materials in lithium-ion batteries: A superstructure of Si@Co-NC composite works effectively

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Green Energy & Environment 2022年第1期7卷 116-129页

作者： Qiongguang Li Yanhong Wang Jing Yu Menglei Yuan Qiangqiang Tan Ziyi Zhong Fabing Su School of Chemical Engineering University of Chinese Academy of Sciences100049BeijingChina State Key Laboratory of Multiphase Complex Systems CAS Key Laboratory of Green Process EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China Zhongke Langfang Institute of Process Engineering Fenghua Road No 1Langfang Economic&Technical Development ZoneHebei Province065001China College of Engineering Guangdong Technion Israel Institute of Technology(GTIIT)241 Daxue RoadJinping DistrictShantou515063China Technion Israel Institute of Technology(IIT) Haifa32000Israel Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical TechnologyShenyang110142China

To mitigate the massive volume expansion of Si-based anode during the charge/discharge cycles,we synthesized a superstructure of Si@Co±NC composite via the carbonization of zeolite imidazolate frameworks incorporated with Si *** Si@Co±NC is comprised of Sinanoparticle core and N-doped/Co-incorporated carbon shell,and there is void space between the core and the *** using as anode material for LIBs,Si@Co±NC displayed a super performance with a charge/discharge capacity of 191.6/191.4 mA h g^(-1)and a coulombic efficiency of 100.1%at 1000 mA g^(-1)after 3000 cycles,and the capacity loss rate is 0.022%per cycle *** excellent electrochemical property of Si@Co±NC is because its electronic conductivity is enhanced by doping the carbon shell with N atoms and by incorporating with Co particles,and the pathway of lithium ions transmission is shortened by the hollow structure and abundant mesopores in the carbon ***,the volume expansion of Si nanoparticles is well accommodated in the void space and suppressed by the carbon host *** work shows that,through designing a superstructure for the anode materials,we can synergistically reduce the work function and introduce the confinement effect,thus significantly enhancing the anode materials’electrochemical performance in LIBs.

关键词： Confinement effect Work function regulation Doping Hollow core-shell structure Si anode

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Dislocation configuration evolution during extension twinning and its influence on precipitation behavior in AZ80 wrought magnesium alloy

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Journal of Magnesium and Alloys 2023年第7期11卷 2442-2457页

作者： Guo-Liang Shi Kui Zhang Xing-Gang Li Yong-Jun Li Ming-Long Ma Jia-Wei Yuan Hong-Ju Zhang State Key Laboratory of Nonferrous Metals and Process Grinm Group Corporation Limited(GRINM)Beijing 100088China GRIMAT Engineering Institute Co. Ltd.Beijing 101407China Guobiao(Beijing)Testing and Certification.Co. Ltd.Beijing 101407China

Thermomechanical treatment T10(extension twinning+aging treatment)can largely enhance the precipitation strengthening effect of magnesium *** this study,dislocation structure evolution and precipitation behavior during T10 treatment of an AZ80 extruded bar were analyzed mainly by two-beam diffraction in *** a compressive strain of 1%in the extrusion direction(ED),a typical dislocation configuration,including basal I1 stacking faults(SFs)anddislocations,has been established in extension *** the strain reaches 7%,the volume fraction of extension twins increases to more than 90%at which point high dense I1 SFs anddislocations *** aging for 2 h at 150℃for the 7%strained sample,masses of basal I1 SFs anddislocations remain in the extension twins and can act as effective nucleation sites and solute fast-diffusion channels for continuous ***,the precipitates in extension twins become highly dense.

关键词： Magnesium alloy Extension twin Dislocation Stacking fault Precipitation

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A Highly Efficient Ni/Al_(2)O_(3)-LaO_(x) Catalyst for the Reductive Amination of Furfural to Furfurylamine:the Promoting Effect of La

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Chemical Research in Chinese Universities 2024年第1期40卷 36-46页

作者： YANG Yinze ZHANG Liyan ZHOU Leilei CHENG Haiyang ZHAO Fengyu State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China School of Applied Chemistry and Engineering University of Science Technology of ChinaHefei 230026P.R.China Jilin Province Key Laboratory of Green Chemistry and Process Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China

The reductive amination of furfural to furfurylamine is an important and still challenging topic in the field of biomass conversion. In this work, we prepared a series of Ni/Al_(2)O_(3)-LaO_(x) catalysts by co-precipitation method, the role of La played in promoting the catalytic performances of reductive amination furfural was discussed based on the changes in the electronic state of Ni species, acidity, and Ni particle size. The catalytic activity and the selectivity of furfurylamine are highly dependent on the surface properties and the structure of the catalyst. The addition of La promoted the amount of strong acidic sites and the H2dissociation and spillover on the surface, thus inducing the improvement of the catalytic activity and furfurylamine selectivity. The Ni/Al_(2)O_(3)-0.5LaO_(x)catalyst with suitable acid sites gave a high yield of furfurylamine (94.9%) under mild reaction conditions. Moreover, the catalyst could be recycled five times without significant loss in activity. The Ni/Al_(2)O_(3)-LaO_(x) catalyst is of great promise in the production of amines via reductive amination reaction.

关键词： Reductive amination Furfural Nickel catalyst Furfurylamine Lanthanum

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Phase-field modeling of faceted growth in solidification of alloys

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Chinese Physics B 2022年第4期31卷 706-709页

作者： Hui Xing Qi An Xianglei Dong Yongsheng Han The Key Laboratory of Space Applied Physics and Chemistry Northwestern Polytechnical UniversityXi’an 710029China College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China The EMMS Group State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China

A regularization of the surface tension anisotropic function used in vapor-liquid-solid nanowire growth was introduced into the quantitative phase-field model to simulate the faceted growth in solidification of *** results show that the value of δ can only affect the region near the tip,and the convergence with respect to δ can be achieved with the decrease of δ near the *** can be found that the steady growth velocity is not a mo no tonic function of the cusp amplitude,and the maximum value is approximately at ε=0.8 when the supersaturation is ***,the growth velocity is an increasing function of supersaturation with the morphological transition from facet to dendrite.

关键词： faceted growth dendrite phase-field model

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Enhanced corrosion resistance,antibacterial properties and osteogenesis by Cu ion optimized MgAl-layered double hydroxide on Mg alloy

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Journal of Magnesium and Alloys 2024年第10期12卷 4174-4190页

作者： Qingge Wang Chuting Liao Bo Liu Shaohui Jing Zhenhu Guo Luxin Liang Jingbo Liu Ning Li Runhua Zhou Ian Baker Hong Wu State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China Department of General Surgery The Second Xiangya HospitalCentral South UniversityChangsha 410011China National Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Orthopedics The Second Xiangya HospitalCentral South UniversityChangsha 410011China Department of Oral and Maxillofacial Surgery Center of StomatologyXiangya HospitalCentral South UniversityChangsha 410008China School of Mechanical and Aerospace Engineering Nanyang Technological University639798Singapore Thayer School of Engineering Dartmouth CollegeHanoverNH 03755-8000USA

Magnesium(Mg)and its alloys have similar densities and elastic moduli to natural bone,making them an excellent choice for orthopedic ***,Mg alloys are prone to electrochemical corrosion,which often leads to implant failure and hinders the further development of Mg alloys due to bacterial infection around the *** work aims to enhance the corrosion resistance of Mg alloys,and provide theoretical guidance for solving the problem that Mg-based orthopedic implants are susceptible to bacterial infection and,thus,implant *** order to solve the corrosion problem,the Mg alloy AZ91D was used as the substrate,and a compact and uniform MgAlCu-layered double hydroxide(Mg(Cu)-LDH)was prepared on its surface using a hydrothermal *** Mg(Cu)-LDH provides a barrier between the AZ91D and corrosive liquid,which effectively protects the Mg substrate from being *** Mg(Cu)-LDH shows great cell viability for MC3T3-E1 *** Cu^(2+)and Mg^(2+) in the coating also endow the Mg(Cu)-LDH/AZ91D with antibacterial properties,showing strong antibacterial effects on both *** and *** with antibacterial rates over 85%.Finally,in vivo results indicated that a LDH-coated implant had no systemic effects on the hearts,livers,spleens,lungs or *** was shown that 4 weeks after surgery the ratio of bone volume to tissue volume(BV/TV)of the LDH implant was 24%,which was 1.7 times that observed for AZ91D.

关键词： Mg alloy Surface modification Layered double hydroxide Corrosion resistance Antibacterial mechanisms Osteogenesis

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