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Strategies in constructing covalent organic framework membranes for molecular sieving

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Science China Chemistry 2022年第5期65卷 836-839页

作者： Jie Li shuang zhao Bo Wang Xiao Feng Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster ScienceMinistry of EducationFrontiers Science Center for High Energy MaterialAdvanced Technology Research Institute(Jinan)School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China

Membrane separation has emerged as one of the most economically and environmentally friendly technologies because of its low energy consumption,small footprint,and simple operation[1].

关键词： constructing separation membranes

Industrial application prospects and key issues of the pure-hydrogen reduction process

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International Journal of Minerals,Metallurgy and Materials 2022年第10期29卷 1922-1931页

作者： Lei Wang Peimin Guo Lingbing kong Pei zhao State Key Laboratory of Advance Steel Process and Products Central Iron and Steel Research InstituteBeijing 100081China Cisri Sunward Technology Co. Ltd.Beijing 100081China

The industrial application prospect and key issues in basic theory and application are discussed by the methods of theoretical analysis and calculation to promote the development of the pure-hydrogen reduction *** to the discussion of thermodynamics and kinetics of pure-hydrogen reduction reaction,the reduction reaction of iron oxide by pure hydrogen is an endothermic reaction,and the reaction rate of hydrogen reduction is significantly faster than that of carbon *** explore the feasibility of the industrial applications of pure-hydrogen reduction,we design the hydrogen reduction reactor and process with reference to the industrialized hydrogen-rich reduction process and put forward the methods of appropriately increasing the reduction temperature,pressure,and temperature of iron ore into the furnace to accelerate the reaction rate and promote the reduction of iron *** key technical parameters in engineering applications,such as hydrogen consumption,circulating gas volume,and heat balance,are discussed by theoretical calculations,and the optimized parameter values are *** process parameters,cost,advantages,and disadvantages of various current hydrogen production methods are compared,and the results show that hydrogen production by natural gas reforming has a good development *** the discussion of the corrosion mechanism of high-temperature and high-pressure hydrogen on heat-resistant steel materials and the corrosion mechanism of H_2S in the hydrogen gas on steel,the technical ideas of developing new metal temperature-resistant materials,metal coating materials,and controlling gas composition are put forward to provide guidance for the selection of heater and reactor ***,the key factors affecting the smooth operation of the hydrogen reduction process in engineering applications are analyzed,offering a reference for the industrial application of the purehydrogen reduction process.

关键词： pure hydrogen reduction process design engineering application reactor material sulfur and nitrogen balance

Application of Ejector in Solid Oxide Fuel Cell Anode Circulation System

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Journal of Thermal Science 2022年第3期31卷 634-649页

作者： LI Dongdong zhao Hongxia kong Fanchen ZHANG Guanmin School of Energy and Power Engineering Shandong UniversityJi’nan250061China

As a new generation fuel cell,solid oxide fuel cell(SOFC)has become a hot spot in the industry due to its unique *** order to improve energy utilization and prevent carbon deposition in the reformer,the ejector is usually used to recover the cell anode *** this paper,the applications related to ejector in SOFC are reviewed,including the ejector design and optimization methods,the ejector performance verification experiment and the performance of ejector in SOFC ***,in order to adapt to the wide power output characteristics of the stack,a study on extending the working range of the ejector is also *** the one hand,the theory of optimal design of ejector used in SOFC system is obtained,including the influence of main structure parameters of ejector on the performance of the whole system and the theoretical model of performance monitoring of ejector used in *** the other hand,it is proved that the ejector used in SOFC power system can prevent the occurrence of carbon deposition problems,while the recovery of exhaust heat can improve the energy utilization of the ***,suggestions for future related research work are given,aiming to promote the ejector-based SOFC system to provide higher and more stable performance in the future.

关键词： ejector Solid Oxide Fuel Cell gas circulation application

Elucidating the enhancement of kaolinite flotation by iron content through density functional theory: A study on sodium oleate adsorption efficiency

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International Journal of Mining Science and Technology 2024年第6期34卷 855-866页

作者： Lingyun Liu Chuilei kong Hongyu zhao Fangqin Lu Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining Huainan 232001China Department of Materials Science and Engineering Anhui University of Science and TechnologyHuainan 232001China School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China

This study delves into the intricate relationship between iron(Fe)content in kaolinite and its impact on the adsorption behavior of sodium *** effects of different iron concentrations on adsorption energy,hydrogen bond kinetics and adsorption efficiency were studied through simulation and experimental *** results show that the presence of iron in the kaolinite structure significantly improves the adsorption capacity of sodium *** samples with high iron content have better adsorption properties,lower adsorption energy levels and shorter and stronger hydrogen bonds than pure *** optimal concentration of oleic acid ions for achieving maximum adsorption efficiency was identified as 1.2 mmol/L across different kaolinite *** this concentration,the adsorption rates and capacities reach their peak,with Fe-enriched kaolinite samples exhibiting notably higher flotation recovery *** optimal concentration represents a balance between sufficient oleic acid ion availability for surface interactions and the prevention of self-aggregation phenomena that could hinder *** study offers promising avenues for optimizing the flotation process in mineral processing applications.

关键词： Iron Influence Sodium Oleate Adsorption Kaolinite Surfaces Molecular Interaction Analysis Flotation Efficiency Optimization

Clean and effective removal of Cl(-I)from strongly acidic wastewater by PbO_(2)

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Journal of Environmental Sciences 2022年第10期34卷 1-8页

作者： Jinmin zhao Linghao kong Xingyun Hu Xianjia Peng State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

Recycling strongly acidic wastewater as diluted H_(2)SO_(4) after contaminants contained being removed was previously proposed,however,Cl(-I),a kind of contaminant contained in strongly acidic wastewater,is difficult to remove,which severely degrades the quality of recycled H_(2)SO_(4).In this study,the removal of Cl(-I)using PbO_(2) was investigated and the involved mechanisms were *** removal efficiency of Cl(-I)reached 93.38%at 50℃ when PbO_(2)/Cl(-I)mole ratio reached 2:*** identification of reaction products shows that Cl(-I)was oxidized to Cl_(2),and PbO_(2) was reduced to PbSO_(4).Cl_(2) was absorbed by NaOH to form NaClO,which was used for the regeneration of PbO_(2) from the generated PbSO_(4).Cl(-I)was removed through two pathways,i.e.,surface oxidation and•OH radical oxidation.•OH generated by the reaction of PbO_(2) and OH−plays an important role in Cl(-I)*** regenerated PbO_(2) had excellent performance to remove Cl(-I)after six-time *** study provided an in-depth understanding on the effective removal of Cl(-I)by the oxidation method.

关键词： Cl(-I)removal Strongly acidic wastewater Cl•radicals •OH radicals PbO_(2)regeneration

DPTSV:A Dynamic Priority Task Scheduling Strategy for TSS Deadlock Based on Value Evaluation

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China Communications 2016年第1期13卷 161-175页

作者： zhao Bo XIANG shuang AN Yang TAO Wei School of Computer Science Wuhan University Key laboratory of Aerospace Information Security and Trusted Computing Wuhan University Ministry of Education

This paper analyzes the threat of TCG Software Stack(TSS)/TCM Service Module(TSM) deadlock in multi-user environment such as cloud and discusses its causes and *** addition,this paper puts forward a dynamic priority task scheduling strategy based on value evaluation to handle this *** strategy is based on the implementation features of trusted hardware and establishes a multi-level ready *** this strategy,an algorithm for real-time value computing is also designed,and it can adjust the production curves of the real time value by setting parameters in different environment,thus enhancing its adaptability,which is followed by scheduling and algorithm *** paper also implements the algorithm and carries out its performance *** to the experiment result from Intel NUC,it is shown that TSS based on advanced DPTSV is able to solve the problem of deadlock with no negative influence on performance and security in multi-user environment.

关键词： TCG software stack/TCM service module deadlock multi-user trusted platform module real-time value

Dynamic Measurement Protocol in Infrastructure as a Service

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Tsinghua Science and Technology 2014年第5期19卷 470-477页

作者： shuang Xiang Bo zhao An Yang Tao Wei School of Computer Wuhan University

Infrastructure as a Service （laaS） has brought advantages to users because virtualization technology hides the details of the physical resources, but this leads to the problem of users being unable to perceive their security. This defect has obstructed cloud computing from wide-spread popularity and development. To solve this problem, a dynamic measurement protocol in laaS is presented in this paper. The protocol makes it possible for the user to get the real-time security status of the resources, thereby solving the problem of guaranteeing dynamic credibility. This changes the cloud service security provider from the operator to the users themselves. This study has verified the security of the protocol by means of Burrow-Abadi-Needham （BAN） logic, and the result shows that it can satisfy requirements for innovation, privacy, and integrity. Finally, based on different laaS platforms, this study has conducted a performance analysis to demonstrate that this protocol is reliable, secure, and efficient.

关键词： Burrow-Abadi-Needham (BAN) logic real-time security trusted dynamic measurement

Class I phosphatidylinositol 3-kinase inhibitors for cancer therapy

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Acta Pharmaceutica Sinica B 2017年第1期7卷 27-37页

作者： Wennan zhao Yuling Qiu Dexin kong Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics School of Pharmaceutical Sciences and Research Center of Basic Medical SciencesTianjin Medical UniversityTianjin 300070China

The phosphatidylinositol 3-kinase(PI3K) pathway is frequently activated in human *** I PI3 Ks are lipid kinases that phosphorylate phosphatidylinositol 4,5-bisphosphate(PIP2) at the 3-OH of the inositol ring to generate phosphatidylinositol 3,4,5-trisphosphate(PIP3), which in turn activates Akt and the downstream effectors like mammalian target of rapamycin(m TOR) to play key roles in carcinogenesis. Therefore, PI3 K has become an important anticancer drug target, and currently there is very high interest in the pharmaceutical development of PI3 K inhibitors. Idelalisib has been approved in USA and Europe as the first-in-class PI3 K inhibitor for cancer therapy. Dozens of other PI3 K inhibitors including BKM120 and ZSTK474 are being evaluated in clinical trials. Multifaceted studies on these PI3 K inhibitors are being performed, such as single and combinational efficacy, resistance, biomarkers,etc. This review provides an introduction to PI3 K and summarizes key advances in the development of PI3 K inhibitors.

关键词： Phosphatidylinositol 3-kinase PI3K inhibitor Drug candidate Cancer therapy PI3K/m TOR selectivity Anticancer

A bibliometric analysis: Research progress and prospects on transition metal dichalcogenides in the biomedical field

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Chinese Chemical Letters 2021年第12期32卷 3762-3770页

作者： Yaping Liu shuang Zhu Zhanjun Gu Yuliang zhao The First Affiliated Hospital of University of Science and Technology of China Hefei 230001China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy Physics and National Center for Nanoscience and TechnologyChinese Academy of SciencesBeijing 100049China College of Materials Science and Optoelectronic Technology University of Chinese Academy of SciencesBeijing 100049China GBA Research Innovation Institute for Nanotechnology Guangzhou 510700China

Recent years have witnessed the wide contributions made by transition metal dichalcogenides(TMDCs)to various fields, including the biomedical field. Here, to identify and further promote the development of biomedical TMDCs, we provide a bibliometric analysis of literature regarding TMDCs for biomedical applications. Firstly, general bibliometric distributions of the dataset by year, country, institute, Web of Science category and referenced source are recognized. Following, we carefully explore the research hotspots of the TMDC-related biomedical field, among which biosensing, bioelectronics, cancer theranostics, antibacterial and tissue engineering are identified. The functions of TMDCs in each biomedical scenario, the related properties and research challenges are highlighted. Finally, future prospects are proposed to shed light on the design of novel TMDC-related biomaterials, potential new biomedical applications, as well as their clinical translation.

关键词： Transition metal dichalcogenides Biomedical applications Bibliometric analysis Biosensing Cancer theranostics Antibacterial