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Study on synergistic leaching of potassium and phosphorus from potassium feldspar and solid waste phosphogypsum via coupling reactions

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Chinese Journal of Chemical Engineering 2024年第1期65卷 117-129页

作者： Chao Li Shizhao Wang Yunshan Wang xuebin An Gang Yang Yong Sun School of Chemical Engineering and Technology Hebei University of TechnologyTianjin 300130China National Engineering Research Center of Green Recycling for Strategic Metal Resources Chinese Academy of SciencesBeijing 100190China School of Engineering Edith Cowan University270 Joondalup DriveJoondalupWA 6027Australia Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province The University of Nottingham Ningbo ChinaNingbo 315100China

To achieve the resource utilization of solid waste phosphogypsum(PG)and tackle the problem of utilizing potassium feldspar(PF),a coupled synergistic process between PG and PF is proposed in this *** study investigates the features of P and F in PG,and explores the decomposition of PF using hydrofluoric acid(HF)in the sulfuric acid system for K leaching and leaching of P and F in *** impact factors such as sulfuric acid concentration,reaction temperature,reaction time,material ratio(PG/PF),liquid–solid ratio,PF particle size,and PF calcination temperature on the leaching of P and K is systematically investigated in this *** results show that under optimal conditions,the leaching rate of K and P reach more than 93%and 96%,*** study using shrinking core model(SCM)indicates two significant stages with internal diffusion predominantly controlling the leaching of *** apparent activation energies of these two stages are 11.92 kJ·mol^(-1)and 11.55 kJ·mol^(-1),respectively.

关键词： Phosphogypsum Potassium feldspar Coupling reaction Leaching Waste treatment Kinetics

Minimizing the ratio of ionizable lipid in lipid nanoparticles for in vivo base editing

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National Science Review 2024年第6期11卷 285-293页

作者： Qiubing Chen xuebin Wang Yizhou Zhang Ming Tian Junyi duan Ying Zhang Hao Yin Departments of Urology and Laboratory Medicine Frontier Science Center for Immunology and Metabolism Medical Research InstituteZhongnan Hospital of Wuhan UniversityWuhan University State Key Laboratory of Virology Tai Kang Center for Life and Medical Sciences Tai Kang Medical SchoolWuhan University Department of Rheumatology and Immunology Zhongnan Hospital of Wuhan UniversityWuhan University Wuhan Research Center for Infectious Diseases and Cancer Chinese Academy of Medical Sciences RNA institute Wuhan University

Lipid nanoparticles(LNPs) have gained clinical approval as carriers for both siRNA and mRNA. Among the crucial components of LNPs, ionizable lipids play a pivotal role in determining the efficiency of RNA delivery. In this study, we synthesized a series of ionizable lipids, denoted as HTO, with a higher count of hydroxyl groups compared to SM-102. Remarkably, LNPs based on HTO12 lipid demonstrated comparable mRNA delivery efficiency and biosafety to those based on SM-102. However, the former reduced the ratio of ionizable lipid/total lipids to mRNA in LNPs by 2.5 times compared to SM-102. The HTO12 LNP efficiently encapsulated adenine base editor mRNA and sgRNA targeting Pcsk9, leading to substantial gene editing within the liver of mice and effective reduction of the target protein. Our study underscores that ionizable lipids with multiple hydroxyl groups may facilitate an improved lipid-to-mRNA ratio to minimize the dosage of ionizable lipids for in vivo delivery.

关键词： ionizable lipid lipid nanoparticle mRNA delivery base editor delivery Pcsk9

Characteristics of the Earth-Resistivity Change Before the Jingtai earthquake with Ms=6.2

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earthquake Research in china 1994年第3期8卷 60-67页

作者： du xuebin,Zhao Hevun,Chen Baozhi and Guo HuiminSeismolcgical institute of lanzhou,SSB,lanzhou 730000,china

The earth-resistivity change recorded before the Jingtai earthquake(EQ).with Ms=6.2 at 11 geoelectric stations within 400 km of the EQ was discussed in this paper,and the following conclusions are made:1) imminent variations of earth-resistivity prior to the EQ were recorded at the Wuwei,Dingxi and Shandan stations immediately before the EQ;2) the recordability of the imminent variations at a station was related to the active deep faults and the strongly active faults inside and outside the focal zone,and to the causative stress field as well;3) the temporal and spatial characteristics of the earth-resistivity change immediately before the EQ showed that the EQ was probably induced by the NNW direction stress field(or by another one of similar direction)which was greatly increased during a short period immediately before the EQ and that the northern wall of the focal fault played a major role in the process of the EQ preparation and occurrence of the EQ.

关键词： epicenter resistivity immediately probably moderate prior conclusions situated strike record

Small but mighty:Empowering sodium/potassium-ion battery performance with S-doped SnO_(2) quantum dots embedded in N,S codoped carbon fiber network

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Carbon Energy 2024年第5期6卷 186-200页

作者： Shengnan He Hui Wu Shuang Li Ke Liu Yaxiong Yang Hongge Pan xuebin Yu institute of Science and Technology for New Energy Xi'an Technological UniversityXi'anChina Department of Materials Science Fudan UniversityShanghaiChina Wanxiang A123 Systems Corporation HangzhouChina School of Material Science and Engineering Shanghai UniversityShanghaiChina

SnO_(2) has been extensively investigated as an anode material for sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs)due to its high Na/K storage capacity,high abundance,and low ***,the sluggish reaction kinetics,low electronic conductivity,and large volume changes during charge and discharge hinder the practical applications of SnO_(2)-based electrodes for SIBs and *** rational structures with fast charge/ion transfer and robust stability is important to overcoming these ***,S-doped SnO_(2)(S-SnO_(2))quantum dots(QDs)(≈3 nm)encapsulated in an N,S codoped carbon fiber networks(S-SnO_(2)-CFN)are rationally fabricated using a sequential freeze-drying,calcination,and S-doping *** analysis and density functional theory calculations reveal that the integration of S-SnO_(2) QDs with N,S codoped carbon fiber network remarkably decreases the adsorption energies of Na/K atoms in the interlayer of SnO_(2)-CFN,and the S doping can increase the conductivity of SnO_(2),thereby enhancing the ion transfer *** synergistic interaction between S-SnO_(2) QDs and N,S codoped carbon fiber network results in a composite with fast Na+/K+storage and extraordinary long-term ***,the S-SnO_(2)-CFN delivers high rate capacities of 141.0 mAh g^(−1) at 20 A g^(−1) in SIBs and 102.8 mAh g^(−1) at 10 A g^(−1) in ***,it delivers ultra-stable sodium storage up to 10,000 cycles at 5 A g^(−1) and potassium storage up to 5000 cycles at 2 A g^(−1).This study provides insights into constructing metal oxide-based carbon fiber network structures for high-performance electrochemical energy storage and conversion devices.

关键词： carbon fiber network heteroatom doping potassium-ion battery sodium-ion battery S-SnO_(2)quantum dot

china's Regional Policies:Progress of the 11^(th) Five Year Plan Period and Prospect of the 12^(th) Five Year Plan Period

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Chinese Journal of Population,Resources and Environment 2011年第2期9卷 90-96页

作者： Chen xuebin1,2 1.institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,china 2.National Development and Reform Commission,Beijing 100824,china institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China National Development and Reform Commission Beijing 100824 China

during the 11th Five Year Plan period,china improved its policy system for the overall strategy of regional development,and established and completed the policies intended for the promotion of regional cooperation and ***,regional development in china took on a series of positive changes such as the enhancement of *** the 12th Five Year Plan period,china will fully implement and continuously improve the policy measures for development in its four major regions,strengthen differentiated guidance to different regions in line with the planning for major function-oriented zones,and accelerate the establishment of basic systems that facilitate coordinated regional development.

关键词： regional policy progress prospect

Evicting and filling attack for linking multiple network addresses of Bitcoin nodes

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Cybersecurity 2024年第3期7卷 49-68页

作者： Huashuang Yang Jinqiao Shi Yue Gao xuebin Wang Yanwei Sun Ruisheng Shi Dongbin Wang School of Cyberspace Security Bejing University of Posts and TelecommunicationsBeijingChina Tsinghua University Bejing 100084China institute of Information Engineering Chinese Academy of SciencesBeijingChina

Bitcoin is a decentralized P2P *** supports users to use pseudonyms instead of network addresses to send and receive transactions at the data layer,hiding users'real network *** transaction tracing attack cuts through the network layer to directly associate each transaction with the network address that issued it,thus revealing the sender's network *** this attack can be mitigated by Bitcoin's network layer privacy *** Bitcoin protects the unlinkability of Bitcoin addresses and there may be a many-to-one relation-ship between addresses and nodes,transactions sent from the same node via different addresses are seen as com-ing from different nodes because attackers can only use addresses as node *** this paper,we proposed the evicting and flling attack to expose the correlations between addresses and cluster transactions sent from different addresses of the same *** attack exploited the unisolation of Bitcoin's incoming connection processing *** particular,an attacker can utilize the shared connection pool and deterministic connection eviction strategy to infer the correlation between incoming and evicting connections,as well as the correlation between releasing and flling *** on inferred results,different addresses of the same node with these connections can be linked together,whether they are of the same or different network *** designed a multi-step attack procedure,and set reasonable attack parameters through analyzing the factors that affect the attack effciency and *** mounted this attack on both our self-run nodes and multi-address nodes in real Bitcoin network,achieving an aver-age accuracy of 96.9% and 82%,***,we found that the attack is also applicable to Zcash,Litecoin,Dogecoin,Bitcoin Cash,and *** analyzed the cost of network-wide attacks,the application scenario,and proposed countermeasures of this attack.

关键词： Security and privacy Bitcoin Address linking

One-step hydrothermal synthesis of few-layered metallic phase MoS2 for high-performance supercapacitors

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Progress in Natural Science:Materials International 2024年第2期34卷 429-436页

作者： Jing Xu Xulong Yuan Yujie Zhao Shaoqi Rui Qingling Jia Han Li Shun Lu Bing Li Yongxing Zhang xuebin Zhu Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation Anhui Province Key Laboratory of Intelligent Computing and Applications Anhui Province Industrial Generic Technology Research Center for Alumics Materials Huaibei Normal University Chongqing institute of Green and Intelligent Technology Chinese Academy of Sciences Key Laboratory of Materials Physics Institute of Solid State Physics HFIPS Chinese Academy of Sciences

In recent years,molybdenum disulfide（MoS2） has gained significant attention in the scientific *** MoS2demonstrates unique properties and potential ***,the synthesis of few-layered and high-purity 1T-MoS2is still a *** this study,we successfully employed a hydrothermal method to synthesize few-layered and high-purity *** purity of the material is controlled by a combination of sodium borohydride and ***,the few-layered 1T-MoS2exhibits exceptional performance as a supercapacitor,including the high specific capacitance(250.3 F g-1at a current density of 1 A g-1) and excellent long-trem cycling stability（90.7 % after 5000 cycles）.Meanwhile,the asymmetric device assembled by 6-FL-1TMoS2and active carbon on carbon cloths exhibits excellent flexibility and high energy and power density(23.1μWh cm-2at 600 μW cm-2,55 μWh cm-2at 12000 μW cm-2).This work provides valuable insights into the synthesis of few-layered and high-purity 1T-MoS2,opening up new avenues for further research and applications.

关键词： 1T-MoS2 Few-layered High-purity One-pot hydrothermal method Supercapacitor

Predicting Chemical Immunotoxicity through Data-Driven QSAR Modeling of Aryl Hydrocarbon Receptor Agonism and Related Toxicity Mechanisms

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Environment & Health 2024年第7期2卷 474-485页

作者： Nada J.Daood Daniel P.Russo Elena Chung xuebin Qin Hao Zhu Predicting Chemical Immunotoxicity through Data-Driven QSAR Modeling of Aryl Hydrocarbon Receptor Agonism and Related Toxicity Mechanisms Department of Chemistry and Biochemistry Rowan UniversityGlassboroNew Jersey 08028United States Center for Biomedical Informatics and Genomics Tulane University School of MedicineNew OrleansLouisiana 70112United States Tulane National Primate Research Center Tulane University School of MedicineCovingtonLouisiana 70433United States

Computational modeling has emerged as a time-saving and cost-effective alternative to traditional animal testing for assessing chemicals for their potential ***,few computational modeling studies for immunotoxicity were reported,with few models available for predicting toxicants due to the lack of training data and the complex mechanisms of *** this study,we employed a data-driven quantitative structure–activity relationship(QSAR)modeling workflow to extensively enlarge the limited training data by revealing multiple targets involved in *** this end,a probe data set of 6,341 chemicals was obtained from a high-throughput screening(HTS)assay testing for the activation of the aryl hydrocarbon receptor(AhR)signaling pathway,a key event leading to *** this probe data set against PubChem yielded 3,183 assays with testing results for varying proportions of these 6,341 compounds.100 assays were selected to develop QSAR models based on their correlations to AhR *** individual QSAR models were built for each assay using combinations of four machine-learning algorithms and three molecular fingerprints.5-fold cross-validation of the resulting models showed good predictivity(average CCR=0.73).A total of 20 assays were further selected based on QSAR model performance,and their resulting QSAR models showed good predictivity of potential immunotoxicants from external *** study provides a computational modeling strategy that can utilize large public toxicity data sets for modeling immunotoxicity and other toxicity endpoints,which have limited training data and complicated toxicity mechanisms.

关键词： Immunotoxicity QSAR Machine learning Aryl hydrocarbon receptor Data mining

Preliminary electromagnetic analysis of the COOL blanket for CFETR

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Plasma Science and Technology 2024年第1期26卷 101-108页

作者：鲁帅领马学斌刘松林 School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026People’s Republic of China institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031People’s Republic of China

The supercritical CO_(2)cOoled Lithium-Lead(COOL)blanket has been designed as one advanced blanket candidate for the Chinese Fusion Engineering Test Reactor(CFETR).This work focuses on the electromagnetic(EM)loads(Maxwell force and Lorentz force)acting on the COOL blanket,which are important mechanical loads in further structural analysis of the COOL blanket.A 3D electromagnetic analysis is performed using the ANSYS finite element method to obtain EM loads on the COOL blanket in this *** first,the magnetic scalar potential(MSP)method is used to obtain the magnetic field and the Maxwell force on the COOL ***,the magnetic vector potential(MVP)method is performed during a plasma disruption event to get the eddy current *** last,a multi-step method is adopted for the calculation of the Lorentz force and the *** maximum Lorentz forces of inboard and outboard blanket structural components are 5624 kN and 2360 kN respectively.

关键词： CFETR COOL blanket finite element analysis electromagnetic analysis