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Associations Between Active,Passive Smoking and the Risk of Nonalcoholic Fatty Liver Disease

Journal of Clinical and Translational Hepatology 2024年第1期12卷 113-118页

作者： Xinyuan Ge Jing Lu Chengxiao Yu Wen Guo Ting Tian Xin xu Yuqing ding Jiaxin Gao Wei Zhao Xiaohua {2. Qingqing Diao Hongxia Ma Qun Zhang Ci Song Hongbing Shen Department of Epidemiology China International Cooperation Center on Environment and Human HealthCenter for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingJiangsuChina Health Promotion Center Jiangsu Province Hospital and the First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina Research Units of Cohort Study on Cardiovascular Diseases and Cancers Chinese Academy of Medical SciencesBeijingChina Collaborative Innovation Center for Cancer Personalized Medicine Nanjing Medical UniversityNanjingJiangsuChina

Nonalcoholic fatty liver disease(NAFLD)is the most common chronic liver disease with an estimated worldwide prevalence of 32.4%.1 The multisystem condition is related to an increased risk of liver-related and cardiovascular extrahepatic diseases.2.Smoking is the leading preventable risk factor for premature disability and *** NAFLD and smoking are both associated with the development of metabolic features,there has been increasing interest in testing the relationship between smoking and *** causal relevance of smoking to NAFLD incidence have been implicated in crosssectional and prospective cohort studies.3,4 However,previous studies mainly focused on the effect of active smoking,discussion on the influence of passive smoking on NAFLD will facilitate illustrating the association between smoking and *** conducted a national two-center cross-section study of active,passive smoking and NAFLD risk in Chinese and European *** design allowed us to(1)test for associations between active,passive smoking and NAFLD risk by sex and consolidate evidence for causality by estimating dose-response relationship,(2.identify mediated factors,and(3)resolve their possible interaction with smoking.

关键词： mortality cardiovascular passive

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Real-world effectiveness of early insulin therapy on the incidence of cardiovascular events in newly diagnosed type 2.diabetes

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Signal Transduction and Targeted Therapy 2024年第7期9卷 2953-2959页

作者： Sihui Luo xueying Zheng Wei Bao Sheng Nie Yu ding Tong Yue Yilun {2. Ying Hu Hua Li Qiongqiong Yang Qijun Wan Bicheng Liu Hong xu Guisen Li Gang xu Chunbo Chen Huafeng Liu Yongjun Shi Yan Zha Yaozhong Kong Guobin Su Ying Tang Mengchun Gong Linong Ji Fan Fan Hou Jianping Weng Department of Endocrinology First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHeifeiChina Institute of Public Health sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiChina Division of Nephrology National Clinical Research Center for Kidney DiseaseState Key Laboratory of Organ Failure ResearchNanfang HospitalSouthern Medical UniversityGuangzhouChina Department of Nephrology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina The Second Affiliated Hospital of Zhejiang university school of Medicine HangzhouChina Sir Run Run Shaw Hospital Zhejiang University School of MedicineHangzhouChina Department of Nephrology Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhouChina The Second People’s Hospital of Shenzhen Shenzhen UniversityShenzhenChina Institute of Nephrology Zhongda HospitalSoutheast University School of MedicineNanjingChina Children’s Hospital of Fudan university ShanghaiChina Renal Department and Institute of Nephrology Sichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaSichuan Clinical Research Center for Kidney DiseasesChengduChina Division of Nephrology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Critical Care Medicine Maoming People’s HospitalMaomingChina Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City Institute of NephrologyAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina Huizhou Central People’s Hospital Sun Yat-Sen UniversityHuizhouChina Guizhou Provincial People’s Hospital Guizhou UniversityGuiyangChina Department of Nephrology the First People’s Hospital of FoshanFoshanChina Department of Nephrology Guangdong Provincial Hospital of Chinese Medicinethe Second Affiliated Hospitalthe Second Clinical CollegeGuangzhou University of Chinese Medicin

Early insulin therapy is capable to achieve glycemic control and restoreβ-cell function in newly diagnosed type 2.diabetes(T2.),but its effect on cardiovascular outcomes in these patients remains *** this nationwide real-world study,we analyzed electronic health record data from 19 medical centers across china between 1 January 2.00,and 2. May *** included 542. eligible patients(mean age 56 years,2.76 women/32.8 men)who were diagnosed T2. within six months and did not have prior cardiovascular *** Cox regression models were used to estimate the associations of early insulin therapy(defined as the first-line therapy for at least two weeks in newly diagnosed T2. patients)with the incidence of major cardiovascular events including coronary heart disease(CHD),stroke,and hospitalization for heart failure(HF).During 17,158 persons years of observation,we documented 834 incident CHD cases,719 stroke cases,and 2.0 hospitalized cases for *** diagnosed T2. patients who received early insulin therapy,compared with those who did not receive such treatment,had 31%lower risk of incident stroke,and 2.%lower risk of hospitalization for *** significant difference in the risk of CHD was *** found similar results when repeating the aforesaid analysis in a propensity-score matched population of 4578 patients and with inverse probability of treatment weighting *** findings suggest that early insulin therapy in newly diagnosed T2. may have cardiovascular benefits by reducing the risk of incident stroke and hospitalization for HF.

关键词： cardiovascular treatment nationwide

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Deep learning framework for comprehensive molecular and prognostic stratifications of triple-negative breast cancer

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Fundamental Research 2024年第3期4卷 678-689页

作者： Shen Zhao Chao-Yang Yan Hong Lv Jing-Cheng Yang Chao You Zi-Ang Li ding Ma Yi Xiao Jia Hu Wen-Tao Yang Yi-zhou Jiang Jun {2. Zhi-Ming Shao Key Laboratory of Breast Cancer in Shanghai Department of Breast SurgeryFudan University Shanghai Cancer CenterShanghai 200032China Institute for AI in Medicine School of Artificial IntelligenceNanjing University of Information Science and TechnologyNanjing 210044China Department of Pathology Fudan University Shanghai Cancer CenterShanghai 200032China Greater Bay Area Institute of Precision Medicine Guangzhou 511466China Department of Radiology Fudan University Shanghai Cancer CenterShanghai 200032China

Triple-negative breast cancer(TNBC)is the most challenging breast cancer *** stratification and target therapy bring clinical benefit for TNBC patients,but it is difficult to implement comprehensive molecular testing in clinical ***,using our multi-omics TNBC cohort(N=42.),a deep learning-based framework was devised and validated for comprehensive predictions of molecular features,subtypes and prognosis from pathological whole slide *** framework first incorporated a neural network to decompose the tissue on WSIs,followed by a second one which was trained based on certain tissue types for predicting different ***-omics molecular features were analyzed including somatic mutations,copy number alterations,germline mutations,biological pathway activities,metabolomics features and immunotherapy *** was shown that the molecular features with therapeutic implications can be predicted including the somatic PIK3CA mutation,germline BRCA2.mutation and PD-L1 protein expression(area under the curve[AUC]:0.78,0.79 and 0.74 respectively).The molecular subtypes of TNBC can be identified(AUC:0.84,0.85,0.93 and 0.73 for the basal-like immune-suppressed,immunomodulatory,luminal androgen receptor,and mesenchymal-like subtypes respectively)and their distinctive morphological patterns were revealed,which provided novel insights into the heterogeneity of TNBC.A neural network integrating image features and clinical covariates stratified patients into groups with different survival outcomes(log-rank P<0.001).Our prediction framework and neural network models were externally validated on the TNBC cases from TCGA(N=143)and appeared robust to the changes in patient *** potential clinical translation,we built a novel online platform,where we modularized and deployed our framework along with the validated *** can realize real-time one-stop prediction for new *** summary,using only pathological WSIs,our proposed framework

关键词： Triple-negative breast cancer Deep learning Digital pathology Patient stratification Online platform

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A charge-assisted hydrogen-bonded organic framework with polar porosities for selective separation of o-xylene from CHaromatic isomers

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science china Chemistry 2024年

作者： Baoqiu Yu xu ding Xinlei Huang Xiaolin Liu Hailong Wang Hui Wu Wei {2. Zhijie Shang Yucheng Jin Xiao Wang Xin Xiao Zongbi Bao Jianzhuang Jiang Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province School of Chemistry and Chemical EngineeringGuizhou University Beijing Key Laboratory for science and Application of Functional Molecular and Crystalline Materials Department of Chemistry and Chemical Engineering School of Chemistry and Biological Engineering University of Science and Technology Beijing Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang University Center for Neutron Research National Institute of Standards and Technology

Porous materials have been extensively explored to facilitate the development of energy-efficient separation processes towards handling industrial ***,a microporous charge-assisted hydrogen-bonded organic framework,HOF-35,was assembled from 2.3,5,6-tetrakis（4-carboxyphenyl）pyrazine with dimethylamine formed from the decomposition of N,N-dimethylformamide under solvothermal *** crystal X-ray diffraction （SCXRD） analysis reveals that HOF-35 was assembled from divalent H2.2.anions and dimethylammonium cations via hydrogen bonding *** single-crystal to single-crystal transformations were achieved through two-step solvent exchanges followed by a desolvent process,resulting in the activated sample HOF-35a with a Brunauer-Emmett-Teller surface area of 464 m2.-1according to CO2.orption experiment at 196 *** particular,HOF-35a can selectively adsorb o-xylene over m-xylene,p-xylene,and ethylbenzene on the basis of multicomponent liquid-phase adsorption *** studies disclose the exact binding sites and multiple host-guest interactions of the four C8 molecules accommodated in this ***-differential scanning calorimetry analyses further estimate the highest adsorption enthalpy for o-xylene among these four C8 molecules,accounting for its preferential adsorption in the activated HOF from a thermodynamic ***-dependent liquid-phase adsorption experiments unveil the kinetic diffusion of C8 ***,the thermodynamic effect in combination with the kinetic diffusion process synergistically promotes the above-mentioned selective separation.

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Expert consensus on the diagnosis and therapy of endo-periodontal lesions

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International Journal of Oral science 2024年第3期16卷 381-389页

作者： Bin Chen Yanan Zhu Minkui Lin Yangheng Zhang Yanfen Li Xiangying Ouyang Song Ge Jiang Lin Yaping Pan Yan xu Yi ding Shaohua Ge Faming Chen Zhongchen Song Shaoyun Jiang Jiang Sun Lijun Luo Junqi Ling Zhi Chen Lin Yue xuedong zhou Fuhua Yan Department of Periodontology Nanjing Stomatological HospitalAffiliated Hospital of Medical SchoolInstitute of StomatologyNanjing UniversityNanjingChina Department of Endodontics Nanjing Stomatological HospitalAffiliated Hospital of Medical SchoolInstitute of StomatologyNanjing UniversityNanjingChina Clinical Research Center for Oral Tissue Deficiency Diseases of Fujian Province&Fujian Key Laboratory of Oral Diseases&Fujian Provincial Engineering Research Center of Oral Biomaterial School and Hospital of StomatologyFujian Medical UniversityFuzhouChina Department of Periodontology Peking University School and Hospital of Stomatology&National Center for Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijingChina school and Hospital of Stomatology Zunyi Medical UniversityZunyiChina Department of Stomatology Beijing TongRen HospitalCapital Medical UniversityBeijingChina Department of Periodontics School and Hospital of StomatologyChina Medical UniversityShenyangChina Department of Periodontology The Affiliated Stomatological Hospital of Nanjing Medical UniversityJiangsu Key Laboratory of Oral DiseasesNanjing Medical UniversityNanjingChina State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Periodontics West China Hospital of StomatologySichuan UniversityChengduChina Department of Periodontology School and Hospital of StomatologyShandong University&Shandong Key Laboratory of Oral Tissue Regeneration&Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration&Shandong Provincial Clinical Research Center for Oral Diseases JinanJinanChina State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi International Joint Research Center for Oral DiseasesDepartment of periodontologySchool of StomatologyThe Fou

Endo-periodontal lesions (EPLs) involve both the periodontium and pulp tissue and have complicated etiologies and pathogenic mechanisms,including unique anatomical and microbiological characteristics and multiple contributing *** etiological complexity leads to difficulties in determining patient prognosis,posing great challenges in clinical ***,EPL-affected teeth require multidisciplinary therapy,including periodontal therapy,endodontic therapy and others,but there is still much debate about the appropriate timing of periodontal therapy and root canal *** compiling the most recent findings on the etiology,pathogenesis,clinical characteristics,diagnosis,therapy,and prognosis of EPL-affected teeth,this consensus sought to support clinicians in making the best possible treatment decisions based on both biological and clinical evidence.

关键词： diagnosis periodontal lesions

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Echocardiographic Measurements in Normal Chinese Adults(EMINCA)II focusing on left ventricular and left atrial size and function by three-dimensional echocardiography

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Frontiers of Medicine 2024年第4期18卷 649-663页

作者： Yingbin Wang Yu Zhang Guihua Yao Hong Tang Lixin Chen Lixue Yin Tiangang Zhu Jianjun Yuan Wei Han Jun Yang Xianhong Shu Ya Yang Yulin Wei Yanli Guo Weidong Ren Dongmei Gao Guilin Lu Ji Wu Hongning Yin Yuming Mu Jiawei Tian Lijun Yuan Xiaojing Ma Hongyan Dai Yunchuan ding Mingyan ding Qing zhou Hao Wang Di xu Mei Zhang Yun Zhang State Key Laboratory for Innovation and Transformation of Luobing Theory Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China Department of Cardiology Qilu Hospital of Shandong University(Qingdao)Qingdao266000China Department of Ultrasonography West China HospitalSichuan UniversityChengdu610041China Department of Ultrasonography Shenzhen People’s Hospital/The Second Clinical Medical College of Jinan UniversityShenzhen518020China Department of Ultrasonography Electronic Science and Technology University of ChinaThe Affiliated Sichuan Provincial People’s HospitalChengdu610072China Department of Cardiology Peking University People’s HospitalBeijing100044China Department of Ultrasonography Henan Provincial People’s HospitalZhengzhou463599China Department of Cardiology The First Affiliated Hospital of Harbin Medical UniversityHarbin150007China Department of Echocardiology The First Affiliated Hospital of China Medical UniversityShenyang110001China Department of Echocardiology Zhongshan HospitalFudan UniversityShanghai200032China Department of Echocardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing100029China Department of Cardiology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou510120China Department of Ultrasonography The Southwest Hospital of AMUChongqing400038China Department of Ultrasonography Shengjing Hospital of China Medical UniversityShenyang110136China Department of Ultrasonography China-Japan Union hospital of Jilin UniversityChangchun130033China Department of Ultrasonography First Affiliated HospitalSchool of MedicineShihezi UniversityShihezi832000China Department of Ultrasonography The First Affiliated Hospital of Guangxi Medical UniversityNanning537406China Department of Echocardiology The Second Hospital of Hebei Medical Uni

Current guidelines encourage large studies in a diverse population to establish normal reference ranges for three-dimensional(3D)echocardiography for different ethnic *** study was designed to establish the normal values of 3D-left ventricular(LV)and left atrial(LA)volume and function in a nationwide,population-based cohort of healthy Han Chinese adults.A total of 1117 healthy volunteers aged 18–89 years were enrolled from 2. collaborating laboratories in *** sets of 3D echocardiographic instruments were used,and full-volume echocardiographic images were recorded and transmitted to a core laboratory for image analysis with a vendor-independent off-line ***,866 volunteers(mean age of 48.4 years,402.men)were qualified for final *** parameters exhibited substantial differences between different sex and age groups,even after indexation by body surface *** normal ranges of 3D-LV and 3D-LA volume and function differed from those recommended by the American Society of Echocardiography and the European Association of Cardiovascular Imaging guidelines,presented by the World Alliance Societies of Echocardiography(WASE)study,and from the 2. values in the EMINCA *** normal reference values of 3D echocardiography-derived LV and LA volume and function were established for the first time in healthy Han Chinese *** ranges of 3D-LV and 3D-LA echocardiographic measurements stratified with sex,age,and race should be recommended for clinical applications.

关键词： three-dimensional echocardiography left ventricle left atrium normal reference values Chinese adults

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Transcriptional landscape of cotton roots in response to salt stress at single-cell resolution

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Plant Communications 2024年第2期5卷 46-66页

作者： Pengtao Li Qiankun Liu Yangyang Wei Chaozhu Xing Zhongping xu Fang ding Yuling Liu Quanwei Lu Nan Hu Tao Wang Xiangqian Zhu Shuang Cheng Zhaoguo Li Zilin Zhao Yanfang Li Jiangping Han Xiaoyan Cai Zhongli {2. Kunbo Wang Baohong Zhang Fang Liu Shuangxia Jin Renhai Peng College of Biology and Food Engineering Anyang Institute of TechnologyAnyangHenan 455000China State Key Laboratory of Cotton Biology Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China Research Base Anyang Institute of TechnologyState Key Laboratory of Cotton BiologyAnyang 455000HenanChina school of Life sciences Zhengzhou UniversityZhengzhouHenan 450001China Hubei Hongshan Laboratory National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanHubeiChina Hubei Key Laboratory of Plant Pathology Huazhong Agricultural UniversityWuhanHubei 430070China Department of Biology East Carolina UniversityGreenvilleNC 27858USA

Increasing soil salinization has led to severe reductions in plant yield and quality,and investigating the mo-lecular mechanism of salt stress response is therefore an urgent *** this study,we systematically analyzed the response of cotton roots to salt stress using single-cell transcriptomics technology;562.1 high-quality cells were obtained from 5-day-old lateral root tips of Gossypium arboreum under natural growth conditions and different salt *** cell types with an array of novel marker genes were identified and confirmed by in situ RNA hybridization,and pseudotime analysis of some specific cell types revealed their potential differentiation *** changes in cell numbers under salt stress were observed for outer epidermal and inner endodermal cells,which were significantly enriched in response to stress,amide biosynthetic process,glutathione metabolism,and glycolysis/*** of differentially expressed genes identified in multiple comparisons revealed other functional ag-gregations concentrated on plant-type primary cell wall biogenesis,defense response,phenylpropanoid biosynthesis,and metabolic *** candidate differentially expressed genes enco{2. transcrip-tion factors or associated with plant hormones also responsive to salt stress were identified,and the func-tion of Ga03G2.53,annotated as auxin-responsive GH3.6,was confirmed by virus-induced gene *** GaGH3.6-silenced plants showed a severe stress-susceptible phenotype,and physiological and biochemical measurements indicated that they suffered more significant oxidative *** results suggest that GaGH3.6 might participate in cotton salt tolerance by regulating redox *** thus construct a transcriptional atlas of salt-stressed cotton roots at single-cell resolution,enabling us to explore cellular heterogeneity and differentiation trajectories and provi{2. valuable insights into the mo-lecular mechanisms that underlie plan

关键词： cotton salt stress scRNA-seq root cell types virus-induced gene silencing

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支持实时流计算应用的关键技术研究进展

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软件学报 2024年第1期35卷 430-454页

作者：徐志榛徐辰丁光耀陈梓浩周傲英华东师范大学数据科学与工程学院上海200062 上海市大数据管理系统工程研究中心上海200062 广西可信软件重点实验室(桂林电子科技大学) 广西桂林541004

信息系统在进行知识的挖掘和管理时,需要处理各种形式的数据,流数据便是其中之一.流数据具有数据规模大、产生速度快且蕴含的知识具有较强时效性等特点,因而发展支持实时处理应用的流计算技术对于信息系统的知识管理十分重要.流计算系... 详细信息

信息系统在进行知识的挖掘和管理时,需要处理各种形式的数据,流数据便是其中之一.流数据具有数据规模大、产生速度快且蕴含的知识具有较强时效性等特点,因而发展支持实时处理应用的流计算技术对于信息系统的知识管理十分重要.流计算系统可以追溯到2.世纪90年代,至今已经经历了长足的发展.然而,当前多样化的知识管理需求和新一代的硬件架构为流计算系统带来了全新的挑战和机遇,催生出了一系列流计算领域的技术研究.首先介绍流计算系统的基本需求以及发展脉络,再按照编程接口、执行计划、资源调度和故障容错4个层次分别分析流计算系统领域的相关技术;最后,展望流计算技术在未来可能的研究方向和发展趋势.

关键词：实时处理流计算数据处理系统

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An Integrated Carbon Dioxide Capture and Methanation Process

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CCS Chemistry 2024年第5期6卷 1174-1183页

作者： Xiaochen Zhang Mengzhu Li Xingwu Liu Ang Li Yuchen Deng Mi Peng Yu Zhang Charlotte Vogt Matteo Monai Junxian Gao xuetao Qin Yao xu Qiaolin Yu Meng Wang Guofu Wang Zheng Jiang Xiaodong Han Casper Brady Wei-xue Li Wu zhou Jin-xun Liu Bingjun xu Bert M.Weckhuysen ding Ma Beijing National Laboratory for Molecular sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871 china Academy of Aerospace science and Innovation Beijing 100088 National Energy Center for Coal to Liquids Synfuels China Co.Ltd.Beijing 101400 Beijing Key Laboratory of Microstructure and Property of Advanced Materials Beijing University of TechnologyBeijing Inorganic Chemistry and Catalysis group Institute for Sustainable and Circular Chemistry and Debye Institute for Nanomaterials ScienceFaculty of ScienceUtrecht University3584 CG Utrecht State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001 Shanghai Synchrotron Radiation Facility Zhangjiang LadShanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210 Center for Catalytic science and technology University of DelawareNewarkDelaware 19716 Key Laboratory of Precision and Intelligent Chemistry School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui 230026 Hefei National Laboratory University of Science and Technology of ChinaHefei 230088 school of Physical sciences CAS Key Laboratory of Vacuum PhysicsUniversity of Chinese Academy of SciencesBeijing 100049

Reducing the ever-growing level of CO_(2.in the atmosphere is critical for the sustainable development of human society in the context of global *** of the capture and upgrading of CO_(2.is,therefore,highly desirable since each process step is costly,both energetically and ***,we report a CO_(2.direct air capture(DAC)and fixation process that produces *** concentrations of CO_(2.(∼400 ppm)in the air are captured by an aqueous solution of sodium hydroxide to form *** carbonate is subsequently hydrogenated to methane,which is easily separated from the reaction system,catalyzed by TiO2.supported Ru in the aqueous phase with a selectivity of 99.9%among gas-phase *** concurrent regenerated hydroxide,in turn,increases the alkalinity of the aqueous solution for further CO_(2.capture,thereby enabling this one-ofits-kind continuous CO_(2.capture and methanation *** simulations demonstrate the energy feasibility of this CO_(2.DAC and methanation process,highlighting its promise for potential largescale applications.

关键词： CO_(2.capture and methanation process sodium hydroxide carbonate Ru/TiO_(2. catalytic mechanism CO_(2.activation and hydrogenation

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Improving comprehensive properties of Cu-11.9Al-2.5Mn shape memory alloy by adding multi-layer graphene carried by Cu_(51)Zr_(14)inoculant particles

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Transactions of Nonferrous Metals Society of china 2024年第10期34卷 3265-3281页

作者： Zhi-xian JIAO Qing-zhou WANG Yan-jun ding Fu-xing YIN Chao-hui {2. Cui-hong HAN Qi-xiang FAN school of Mechanical Engineering Tianjin University of Technology and EducationTianjin 300222China Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300130China school of Materials science and Engineering Central South UniversityChangsha 410083China Institute of New Materials Guangdong Academy of SciencesGuangzhou 510651China

In order to improve the comprehensive properties of the Cu-11.9Al-2.5Mn shape memory alloy(SMA),multilayer graphene(MLG)carried by Cu_(51)Zr_(14)inoculant particles was incorporated and dispersed into this alloy through preparing the preform of the cold-pressed MLG-Cu_(51)Zr_(14)composite *** the resultant novel MLG/Cu-Al-Mn composites,MLG in fragmented or flocculent form has a good bonding with the Cu-Al-Mn *** can prevent the coarsening of grains of the Cu-Al-Mn SMA and cause thermal mismatch dislocations near the MLG/Cu-Al-Mn *** damping and mechanical properties of the MLG/Cu-Al-Mn composites are significantly *** the content of MLG reaches 0.2.wt.%,the highest room temperature damping of 0.0558,tensile strength of 801.5 MPa,elongation of 10.8%,and hardness of HV 308 can be *** the basis of in-depth observation of microstructures,combined with the theory of internal friction and strengthening and toughening theories of metals,the relevant mechanisms are discussed.

关键词： Cu−Al−Mn shape memory alloy multilayer graphene(MLG) microstructure interface damping mechanical properties

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