检索结果-南通市图书馆

Progress and prospects of pH-neutral aqueous organic redox flow batteries:Electrolytes and membranes

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第9期96卷 89-109页

作者： Kang Peng Gonggen Tang Chao Zhang xian yang Peipei zuo Zhanfeng xiang Zhong Yao Zhengjin yang Tongwen Xu Key Laboratory of Precision and Intelligent Chemistry Department of Applied ChemistrySchool of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026AnhuiChina Suqian Time Energy Storage Technology Co. Ltd.Suqian 223800JiangsuChina

Aqueous organic redox flow batteries(AORFBs),which exploit the reversible electrochemical reactions of water-soluble organic electrolytes to store electricity,have emerged as an efficient electrochemical energy storage technology for the grid-scale integration of renewable ***-neutral AORFBs that feature high safety,low corrosivity,and environmental benignity are particularly promising,and their battery performance is significantly impacted by redox-active molecules and ion-exchange membranes(IEMs).Here,representative anolytes and catholytes engineered for use in pH-neutral AORFBs are outlined and summarized,as well as their side reactions that cause irreversible battery capacity *** addition,the recent achievements of IEMs for pH-neutral AORFBs are discussed,with a focus on the construction and tuning of ion transport ***,the critical challenges and potential research opportunities for developing practically relevant pH-neutral AORFBs are presented.

关键词： Aqueous organic redox flow battery pH-Neutral Anolyte Catholyte Membrane

Highly efficient catalyst for 1,1,2-trichloroethane dehydrochlorination via BN_(3) frustrated Lewis acid-base pairs

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第6期17卷 4773-4781页

作者： Yuxue Yue Fangmin zuo Bolin Wang Xiaoling xian Jun Tang Haifeng Zhang Zilong Zhang Qingping Ke Wei Chen School of Chemical Engineering Northeast Electric Power UniversityJilin 132012China Industrial Catalysis Institute of Zhejiang University of Technology Hangzhou 310014China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China College of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243002China

In this study,a novel non-metallic carbon-based catalyst co-doped with boron and nitrogen(B,N)was successfully *** precisely controlling the carbonization temperature of a binary mixed ionic liquid,we selectively modified the doping site structure,ultimately constructing a B,N co-doped frustrated Lewis acid-base pair *** catalyst exhibited remarkable catalytic activity,selectivity,and stability in the dehydrochlorination reaction of 1,1,2-trichloroethane(TCE).Detailed characterization and theoretical calculations revealed that the primary active center of this catalyst was the BN_(3)*** to conventional graphitic N structures,the BN_(3)structure had a higher p-band center,ensuring superior adsorption and activation capabilities for TCE during the *** the BN_(3)site,three negatively charged nitrogen atoms acted as Lewis bases,while positively charged boron atoms acted as Lewis *** synergistic interaction facilitated the specific dissociation of chlorine and hydrogen atoms from TCE,significantly enhancing the 1,1-dichloroethene *** this research,we not only explored the active site structure and catalytic mechanism of B,N co-doped catalysts in depth but also provided an efficient,selective,and stable catalyst for the dehydrochlorination of TCE,contributing significantly to the development of non-metallic catalysts.

关键词： B N co-doped sites dehydrochlorination frustrated Lewis acid-base pairs catalytic mechanism

Plasmon-enhanced ultra-high photoresponse of single-wall carbon nanotube/copper/silicon near-infrared photodetectors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第7期17卷 5930-5936页

作者： Yi-Ming Zhao xian-Gang Hu Chao Chen zuo-Hua Wang An-Ping Wu Hong-Wang Zhang Peng-xiang Hou Chang Liu Hui-Ming Cheng Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China National Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Single wall carbon nanotube(SWCNT)/Si heterojunction photodetectors have the advantages of high photoresponse ability and simple structure,however,their detection wavelength range are usually lower than 1100 nm,which limits their application in the infrared *** report a SWCNT/Cu/Si photodetector with both a high photoresponse and a detection range up to the infrared band by depositing a Cu nanoparticles(NPs)layer between a SWCNT film and a n-Si *** was found that the Cu NPs produce strong surface plasmon resonance(SPR)under laser irradiation,which breaks through the limitation of Si band gap and greatly improves the photoresponse of the SWCNT/Cu/Si photodetector in the near infrared *** responsivity(R)of the photodetector in the wavelength range of 1850–1200 nm reached 2.2–14.15 mA/W,which is the highest value in the reported plasmon enhanced n-Si based photodetectors,and about 20,000 times higher than that of a SWCNT/Si *** R value for 1550 nm wavelength used in optical communications reached~8.2 mA/W,which is 64%higher than the previously reported values of commonly used *** attribute the significant increase to the strong SPR and low Schottky barrier of Cu with n-Si,which facilitates the generation and transfer of the carriers.

关键词： single wall carbon nanotube photodetector silicon surface plasmon resonance copper

Biphase-to-monophase structure evolution of Na_(0.766+x)Li_(x)Ni_(0.33-x)Mn_(0.5)Fe_(0.1)Ti_(0.07)O_(2) toward ultradurable Na-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2024年第9期6卷 66-79页

作者： Mengting Liu Zhiwei Cheng Xu Zhu Haojie Dong Tianran Yan Liang Zhang Lu Zheng Hu-Rong Yao xian-zuo Wang Lianzheng Yu Bing Xiao Yao Xiao Peng-Fei Wang State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringCenter of Nanomaterials for Renewable EnergyXi'an Jiaotong UniversityXi'anShaanxiChina Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Institute of Functional Nano&Soft Materials(FUNSOM)Soochow UniversitySuzhouJiangsuChina Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials College of Physics and EnergyFujian Normal UniversityFuzhouFujianChina Wenzhou Key Laboratory of Sodium-Ion Batteries Institute for Carbon NeutralizationWenzhou University Technology InnovationWenzhouZhejiangChina

Layered composite oxide materials with O3/P2 biphasic crystallographic structure typically demonstrate a combination of high capacities of the O3 phase and high operation voltages of the P2 ***,their practical applications are seriously obstructed by difficulties in thermodynamic phase regulation,complicated electrochemical phase transition,and unsatisfactory cycling ***,we propose an efficient structural evolution strategy from biphase to monophase of Na_(0.766+x)Li_(x)Ni_(0.33-x)Mn_(0.5)Fe_(0.1)Ti_(0.07)O_(2) through Li+*** role of Li+substitution not only simplifies the unfavorable phase transition by altering the local coordination of transition metal(TM)cations but also stabilizes the cathode–electrolyte interphase to prevent the degradation of TM cations during battery *** a result,the thermodynamically robust O_(3)-Na_(0.826)Li_(0.06)Ni_(0.27)Mn_(0.5)Fe_(0.1)Ti_(0.07)O_(2) cathode delivers a high capacity of 139.4 mAh g^(-1) at 0.1 C and shows prolonged cycling life at high rates,with capacity retention of 81.6%at 5 C over 500 *** work establishes a solid relationship between the thermodynamic structure evolution and electrochemistry of layered cathode materials,contributing to the development of long-life sodium-ion batteries.

关键词： electrochemistry Li+substitution Na-ion batteries O_(3)phase phase transition

Association of Serum Folate and Vitamin B_(12) Concentrations with Obesity in Chinese Children and Adolescents

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第3期37卷 242-253页

作者： ZHU Qian Rang KOK E Dieuwertje BEKELE Hailu Tesfaye MANUSAMA Koen ZHANG Jing xian XIE Wei ZONG Wen Qi zuo Hui ZHANG Jian KAMPMAN Ellen DAI Yue Jiangsu Provincial Center for Disease Control and Prevention Nanjing 210009JiangsuChina Division of Human Nutrition and Health Wageningen University&ResearchWageningen 176700 AAThe Netherlands School of Public Health Medical College of Soochow UniversitySuzhou 215123JiangsuChina National Institute for Nutrition and Health Chinese Center for Disease Control and PreventionBeijing 100050China

Objective This study aimed to evaluate the associations of serum folate and/or vitamin B12 concentrations with obesity among Chinese children and *** A cross-sectional study was conducted including 3,079 Chinese children and adolescents,aged 6 to 17 years,from Jiangsu,*** indices,such as,children's body mass index(BMI),BMI z-scores,waist circumference,and waist-to-height ratio were *** linear regression and generalized additive models were used to investigate the associations of serum folate and vitamin B12 levels with anthropometric indices and odds of *** We observed that serum vitamin B12 concentrations were inversely associated with all anthropometric indices and the odds of general obesity[odds ratio(OR)=0.68;95%confidence interval(CI)=0.59,0.78]and abdominal obesity(OR=0.68;95%CI=0.60,0.77).When compared to participants with both serum vitamin levels in the two middle quartiles,those with both serum folate and vitamin B12 levels in the highest quartile were less prone to general(OR=0.31,95%CI=0.19,0.50)or abdominal obesity(OR=0.46,95%CI=0.31,0.67).Conversely,participants with vitamin B12 levels in the lowest quartile alongside folate levels in the highest quartile had higher odds of abdominal obesity(OR=2.06,95%CI=1.09,3.91).Conclusion Higher serum vitamin B12 concentrations,but not serum folate concentrations,were associated with lower odds of childhood *** and adolescents with high levels of vitamin B12 and folate were less likely to be obese.

关键词： Folate Vitamin B12 Childhood obesity Micronutrient

FDX1 as a novel biomarker and treatment target for stomach adenocarcinoma

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第6期16卷 1803-1824页

作者： xian-Ze Xie Lei zuo Wei Huang Qiao-Mei Fan Ya-Yun Weng Wen-Dong Yao Jia-Li Jiang Jia-Qi Jin Department of Pharmacy The First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou 310018Zhejiang ProvinceChina Anhui Province Huainan City Shou County Agricultural Machinery Affairs Management Center Huainan 232200Anhui ProvinceChina

BACKGROUND Stomach adenocarcinoma(STAD)is one of the main reasons for cancer-related deaths *** investigation aimed to define the connection between STAD and Cuproptosis-related genes(CRGs).Cuproptosis is a newly identified form of mitochondrial cell death triggered by *** To explore the identification of potential biomarkers for STAD disease based on *** A predictive model using Gene Ontology(GO),Least Absolute Shrinkage and Selection Operator(LASSO),Kyoto Encyclopedia of Genes and Genomes(KEGG),Gene Set Variation Analysis(GSVA),and Gene Set Enrichment Analysis analyzed gene interconnections,focusing on 3 copper-related genes and their expression in The Cancer Genome *** for mRNA-miRNA and mRNA-transcription factor interactions were *** prognostic significance of CRG scores was evaluated using time-receiver operating characteristic,Kaplan-Meier curves,and COX regression *** was conducted with datasets GSE26942,GSE54129,and *** of copper-related differ-entially expressed genes was also analyzed in various human tissues and gastric cancer subpopulations using the human protein *** Three significant genes(FDX1,LIAS,MTF1)were identified and selected via LASSO analysis to predict and classify individuals with STAD into high and low CRG score *** genes were down-regulated in both risk *** and KEGG analyses highlighted their involvement mainly in the electron transport *** validating their differential expression,FDX1 emerged as the most accurate diagnostic marker for gastric ***,the RCircos package localized FDX1 on chromosome *** Our study revealed that FDX1 could be a potential biomarker and treatment target for gastric malignancy,providing new ideas for further scientific research.

关键词： Stomach adenocarcinoma disease Copper death FDX1 prognostic biomarkers Cuproptosis-related genes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于“少数派报告”的协同过滤模型

中国管理科学 2024年第3期32卷 20-27页

作者：黄晓宇鲜征征杨雄文左文明华南理工大学电子商务系广东广州510006 人工智能与数字经济广东省实验室(广州) 广东广州510335 广东金融学院互联网金融与信息工程学院广东广州510520 华南理工大学法学院广东广州510006

协同过滤是在线推荐系统最重要的组成模块之一,为实现面向用户的个性化广告投放功能提供了关键的技术支持。然而,在协同过滤系统的具体实现中,研究者却不加区分地对所有目标用户都使用相同的训练流程。较之“个性化的预测结果”的预期,... 详细信息

协同过滤是在线推荐系统最重要的组成模块之一,为实现面向用户的个性化广告投放功能提供了关键的技术支持。然而,在协同过滤系统的具体实现中,研究者却不加区分地对所有目标用户都使用相同的训练流程。较之“个性化的预测结果”的预期,上述“一般化的训练过程”使得结果模型相对于待预测的目标过于普适,缺乏必要的针对性。本文提出一个“以个性化的训练过程得到个性化的预测结果”的协同过滤预测模型(MORE):对给定的目标用户,MORE将使用弹性网络模型(Elastic Net),从现有的用户全集中选出若干用户构成与之对应的“专家”集合,并基于目标用户与专家已有的评分,生成对目标用户的缺失评分的预测。本文报告了MORE在不同的协同过滤预测模型上的应用结果,在真实评分数据集上的实验结果表明,较之使用全量数据训练得到的预测模型,基于MORE的模型有更好的表现。

关键词：协同过滤稀疏选择个性化推荐系统

在线全文

学校读者我要写书评

暂无评论

基于模型建构的初中生物学概念教学

生物学教学 2024年第7期49卷 39-41页

作者：左幼媛邹纤湖南省长沙市岳麓区西雅中学长沙410006

在“神经调节的基本方式”的教学中,引导学生运用数学模型,使“反射”的概念简单化、外显化。通过自制物理模型及探究实验,使“反射弧”这一抽象的概念直观化、形象化;引导学生构建和修正概念模型,使知识系统化、结构化;通过应用模型,... 详细信息

在“神经调节的基本方式”的教学中,引导学生运用数学模型,使“反射”的概念简单化、外显化。通过自制物理模型及探究实验,使“反射弧”这一抽象的概念直观化、形象化;引导学生构建和修正概念模型,使知识系统化、结构化;通过应用模型,使概念整合化、可视化。

关键词：模型建构生物学概念科学思维神经调节

作业疗法联合rTMS对脊髓损伤伴胃肠功能失调的干预研究

在线全文

学校读者我要写书评

暂无评论

世界华人消化杂志 2024年第1期32卷 50-57页

作者：韩作献徐婷汪加胜浙江中医药大学附属金华中医院康复治疗部浙江省金华市321000

背景脊髓损伤伴胃肠功能紊乱的治疗方法对于神经功能的恢复并不十分理想.观察作业疗法联合重复经颅磁刺激有望相互弥补,发挥各自优势,提高患者的康复的质量.目的观察作业疗法联合重复经颅磁刺激(repetitive transcranial magnetic stimu... 详细信息

背景脊髓损伤伴胃肠功能紊乱的治疗方法对于神经功能的恢复并不十分理想.观察作业疗法联合重复经颅磁刺激有望相互弥补,发挥各自优势,提高患者的康复的质量.目的观察作业疗法联合重复经颅磁刺激(repetitive transcranial magnetic stimulation,rTMS)在脊髓损伤(spinal cord injury,SCI)伴胃肠功能失调患者中的应用效果.方法通过随机数字表法将2020-06/2023-03间符合选例标准的150例SCI伴胃肠功能失调患者分成3组,每组50例.对照1组采取作业疗法,对照2组采取rTMS治疗,观察组采取作业治疗联合rTMS治疗,治疗3个疗程.观察患者疗效、治疗前后神经电生理[胫神经体感诱发电位(SEP)、运动诱发电位(MEP)]、外周血细胞因子[白介素-1β(interleukin-1β,IL-1β)、白介素-6(interleukin-6,IL-6)、转化生长因子β1(transforming growth factor-β1,TGF-β1)]、下肢关键肌群肌力积分、肠道功能[神经源性肠道功能障碍(neurogenic bowel dysfunction,NBD)、Cleveland失禁评分系统、Wexner便秘评分、布里斯托尔(Bristol)大便分级]、肢体功能恢复指标[Barthel指数(Barthel Index,BI)、功能独立性测量(Functional Independence Measure,FIM)、Berg平衡量表(Berg Balance Scale,BBS)].结果观察组总有效率94.00%高于对照1、2组74.00%、80.00%(P对照2组>对照1组(P对照2组>对照1组(P对照1、2组(P<0.05).结论与单一康复疗法相比,rTMS联合作业疗法可降低免疫炎症反应,改善SCI伴胃肠功能失调患者受损的肢体运动及肠道功能,有助于其更好地回归家庭与社会.

关键词：脊髓损伤重复经颅磁刺激疗效功能恢复