检索结果-南通市图书馆

Conducting Polymer-Based e-Refinery for Sustainable Hydrogen Peroxide Production

在线全文

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2024年第2期7卷 334-342页

作者： Zhixing Wu Penghui Ding Viktor Gueskine robert Boyd Eric Daniel G■owacki Magnus Odén Xaνier Crispin Magnus Berggren Emma M.Björk Mikhail Vagin Nanostructured Materials Department of PhysicsChemistry and Biology(IFM)Linköping UniversitySE 58183LinköpingSweden Laboratory of Organic Electronics Department of Science and Technology(ITN)Linköping UniversitySE 60174NorrköpingSweden

Electrocatalysis enables the industrial transition to sustainable production of chemicals using abundant precursors and electricity from renewable ***-centralized production of hydrogen peroxide(H_(2)O_(2))from water and oxygen of air is highly desirable for daily life and *** report an effective electrochemical refinery(e-refinery)for H_(2)O_(2)by means of electrocatalysis-controlled comproportionation reaction(2_(H)O+o→2HO),feeding pure water and oxygen *** nickel(Ⅱ)oxide(NiO)was used as electrocatalyst for oxygen evolution reaction(OER),producing oxygen at the *** polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)(PEDOT:PSS)drove the oxygen reduction reaction(ORR),forming H_(2)O_(2)on the *** reactions were evaluated in both half-cell and device *** performance of the H_(2)O_(2)e-refinery,assembled on anion-exchange solid electrolyte and fed with pure water,was limited by the unbalanced ionic *** of the operation conditions allowed a conversion efficiency of 80%.

关键词： conducting polymer hydrogen peroxide nickel(Ⅱ)oxide oxygen evolution reaction oxygen reduction reaction

Surgeon preferences in the treatment of thumb carpometacarpal osteoarthritis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第5期15卷 435-443页

作者： Edward J Wu Bradley W Fossum Wyatt Vander Voort Christopher O Bayne robert M Szabo Department of Orthopedic Surgery University of Minnesota Medical SchoolMinneapolisMN 55455United States Department of Orthopaedic Surgery UC Davis School of MedicineSacramentoCA 95817United States

BACKGROUND Primary thumb carpometacarpal(CMC)osteoarthritis is one of the most common conditions encountered by hand *** the vast number of operations that have been proposed,none have demonstrated results significantly superior to trapeziectomy *** The purpose of our study was to determine why surgeons opt for their technique in treating CMC *** A cross-sectional survey of active members of the American Society for Surgery of the Hand was conducted to evaluate the reasons behind their preferred technique in the treatment of isolated thumb CMC *** were contacted by email once and provided with a link to a de-identified survey consisting of 5 treatment questions and 5 demographic *** Of 950 responses were received.40.5%of surgeons preferred trapeziectomy+ligament reconstruction tendon interposition(LRTI),followed by trapeziectomy+suspensionplasty(28.2%),suture button suspension(5.9%),trapeziectomy alone(4.6%),prosthetic arthroplasty(3.2%),arthrodesis(1.1%),and other(6.6%).Proponents of trapeziectomy+LRTI cited familiarity(73.2%),exposure during fellowship(48.8%)and less proximal migration(60%)to be the main reasons affecting their *** who preferred trapeziectomy+suspensionplasty most reported simplicity(74.9%),fewer complications(45.3%),less proximal migration(43.8%),and avoidance of autogenous tissue harvest(42.7%).Advocates of suture button suspension cited avoidance of autogenous tissue harvest(80.4%),shorter immobilization(76.8%),and quicker recovery(73.2%)with their *** of trapeziectomy alone cited simplicity(97.7%),fewer complications(86.4%),and avoidance of autogenous tissue harvest(59.1%).In their comments,45%of surgeons choosing trapeziectomy alone cited evidence as an additional *** of prosthetic arthroplasty cited improved pinch strength(83.3%)and improved range of motion(63.3%),while those preferring arthrodesis cited better pinch strength(90%)and freque

关键词： Thumb carpometacarpal Osteoarthritis Trapeziectomy Ligament reconstruction tendon interposition Suspensionplasty Preferences Trends

水基Ag-SiO纳米流体分频光伏/光热集热器功能单元性能实验研究

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

新能源进展 2024年

作者：刘仙萍田东 TAYLOR robert A 湖南科技大学土木工程学院新南威尔士大学机械与制造工程学院

以纳米流体分频的光伏/光热（PV/T）集热器能使光伏和光热模块的工作温度解耦，从而获得更高的太阳能综合利用效率。以水基Ag-SiO2纳米流体为分频液和集热工质，设计新型的分频PV/T集热器结构，研究在Ag-SiO2纳米流体4种质量浓度和运行... 详细信息

以纳米流体分频的光伏/光热（PV/T）集热器能使光伏和光热模块的工作温度解耦，从而获得更高的太阳能综合利用效率。以水基Ag-SiO2纳米流体为分频液和集热工质，设计新型的分频PV/T集热器结构，研究在Ag-SiO2纳米流体4种质量浓度和运行条件下，分频PV/T集热器功能单元的热、电性能。结果表明：Ag-SiO2纳米流体的质量浓度显著影响PV/T集热器功能单元的性能，质量浓度为0.025%时，综合效率约为63.21%，比水为分频流体时的综合效率提升约38.04%；得出水基Ag-SiO2纳米流体分频时PV/T集热器功能单元的热、电效率和综合效率与不同纳米颗粒质量浓度的拟合关系式，为通过控制纳米流体质量浓度参数从而调节PV/T集热器的热、电输出提供理论依据。

关键词：太阳能纳米流体光谱分频光伏/光热系统质量浓度

不规则波作用下岸基式振荡水柱波能装置的水动力性能研究

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

海洋学报 2024年第1期46卷 101-110页

作者：傅磊宁德志王荣泉 robert Mayon 大连理工大学海岸和近海工程国家重点实验室辽宁大连116024 大连理工大学大连市海洋可再生能源重点实验室辽宁大连116024

为了研究真实海域中振荡水柱(OWC)波能转换装置的水动力性能,本文基于势流理论和高阶边界元方法,建立了不规则波与岸基式OWC波能装置相互作用的二维非线性数值模型,不规则波基于JONSWAP谱生成。为了考虑由于水体黏性引起的能量耗散,在... 详细信息

为了研究真实海域中振荡水柱(OWC)波能转换装置的水动力性能,本文基于势流理论和高阶边界元方法,建立了不规则波与岸基式OWC波能装置相互作用的二维非线性数值模型,不规则波基于JONSWAP谱生成。为了考虑由于水体黏性引起的能量耗散,在气室内水面边界条件中引入人工黏性阻尼。并在大连理工大学波流水槽中开展了物理模型试验,对数值模型的有效性进行了验证。研究发现,在不规则波作用下,OWC波能装置的水动力效率相较于规则波作用下有所降低,特别是在低频波区域效率差值最大。与规则波相比,不规则波浪作用下装置峰值效率对应的频率变大。气室内的相对水面高程随着有效波高的增加而降低,而气室内相对气压则随有效波高的增加而增大。OWC波能装置的水动力效率受有效波高的影响较小,其峰值效率对应的频率不受波浪非线性的影响。本文可以为OWC波能装置的设计提供参考。

关键词：振荡水柱波能转换装置不规则波高阶边界元波浪非线性

Lipid droplets in the nervous system:involvement in cell metabolic homeostasis

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 740-750页

作者： Yuchen Zhang Yiqing Chen Cheng Zhuang Jingxuan Qi robert Chunhua Zhao Jiao Wang School of Life Sciences Shanghai UniversityShanghaiChina School of Medicine Shanghai UniversityShanghaiChina Institute of Basic Medical Sciences Chinese Academy of Medical Sciences School of Basic MedicinePeking Union Medical CollegeBeijingChina Center of Excellence in Tissue Engineering Chinese Academy of Medical SciencesBeijingChina Beijing Key Laboratory of New Drug Development and Clinical Trial of Stem Cell Therapy BeijingChina

Lipid droplets serve as primary storage organelles for neutral lipids in neurons,glial cells,and other cells in the nervous *** droplet formation begins with the synthesis of neutral lipids in the endoplasmic ***,lipid droplets were recognized for their role in maintaining lipid metabolism and energy homeostasis;however,recent research has shown that lipid droplets are highly adaptive organelles with diverse functions in the nervous *** addition to their role in regulating cell metabolism,lipid droplets play a protective role in various cellular stress ***,lipid droplets exhibit specific functions in neurons and glial *** of lipid droplet formation leads to cellular dysfunction,metabolic abnormalities,and nervous system *** review aims to provide an overview of the role of lipid droplets in the nervous system,covering topics such as biogenesis,cellular specificity,and ***,it will explore the association between lipid droplets and neurodegenerative *** the involvement of lipid droplets in cell metabolic homeostasis related to the nervous system is crucial to determine the underlying causes and in exploring potential therapeutic approaches for these diseases.

关键词： Alzheimer's disease lipid droplet biogenesis lipid droplets lipid metabolism nervous system neurodegenerative disorders oxidative stress Parkinson's disease

Characterization of squash polysaccharide and the anti-diabetic effect on type 2 diabetic rat revealed by urine metabolomics analysis

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第5期13卷 2937-2946页

作者： Li Liang Fuming Zhang Quanhong Li Baoguo Sun Yuyu Zhang robert J.Linhardt Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Key Laboratory of Flavor ChemistryBeijing Technology and Business University(BTBU)Beijing 100048China Departments of Chemical and Biological Engineering Chemistry and Chemical BiologyBiomedical Engineering and Biological ScienceCenter for Biotechnology and Interdisciplinary StudiesRensselaer Polytechnic InstituteTroy 12180USA College of Food Science and Nutritional Engineering China Agricultural UniversityBeijing 100083China China National Engineering Research Center for Fruit and Vegetable Processing Beijing 100083China

The present study reports the structural characteristics of 3 polysaccharide fractions(SPS-F1,SPS-F2 and SPS-F3)isolated and purified from ***-F1(molecular weight(Mw)=12.30 kDa)and SPS-F2(Mw=19.40 kDa)were likely to contain HG and RG-I domain of pectic polysaccharide,***-F2(Mw=270.4 kDa)was mainly composed of rhamnose,galactose and *** treatment with SPS decreased body weight gain,glucose and TG levels in type 2 diabetes ***,25 differential metabolites were identified based on urinary metabolomics analysis,which are crucial to the anti-diabetic effect of *** regulation of nicotinamide N-oxide,histamine,cis-aconitate,citrate,L-malic acid,3-(3-hydroxyphenyl)propanoic acid and N-acetyl-L-aspartic acid were mainly associated with energy metabolism,gut microbiota and *** of surface plasmon resonance revealed the binding kinetics with galectin-3(Gal-3)and fibroblast growth factor 2(FGF2).The K_(D)values of SPS-F2 and SPS-F3 to Gal-3 were 4.97×10^(-3)and 1.48×10^(-3)mol/L,indicating a weak binding *** 3 fractions showed moderate binding to FGF2 and the affinity was SPS-F3>SPS-F2>***,the metabolomics and SPR approach were proved to be a promising tool in exploring the anti-diabetes effects of SPS and provided a deep understanding of the mechanisms.

关键词： Polysaccharide Metabolomics Type 2 diabetes Surface plasmon resonance

同方期刊数据库

Creation and validation of a novel low-cost dry lab for early resident training and assessment of robotic prostatectomy technical proficiency

在线全文

学校读者我要写书评

暂无评论

Current Urology 2024年第2期18卷 133-138页

作者： Kevin Kunitsky Abhishek Venkataramana Katherine E.Fero Jorge Ballon Jacob Komberg robert Reiter Wayne Brisbane Institute of Urologic Oncology Department of UrologyDavid Geffen School of MedicineUniversity of CaliforniaLos AngelesCAUSA Charles E.Schmidt College of Medicine Florida Atlantic UniversityBoca RatonFLUSA

Purpose:To evaluate the preliminary validity and acceptability of a low-cost low-fidelity robotic surgery dry lab for training and assessing residents’technical proficiency with key robotic radical prostatectomy *** and methods:Three standardized inanimate tasks were created to simulate the radical prostatectomy steps of posterior dissection,neurovascular bundle release,and urethrovesical *** trainees and faculty at a single institution completed and evaluated each dry lab *** validity was evaluated by comparing task completion times and Global Evaluative Assessment of Robotic Skills scores across four participant cohorts:medical students(n=5),junior residents(n=5),senior residents(n=5),and attending surgeons(n=7).Content validity,face validity,and acceptabilitywere evaluated through a posttask survey using a 5-point Likert ***:There was a significant difference in the individual and composite task completion times and Global Evaluative Assessment of Robotic Skills scores across all participant cohorts(all p<0.01).The model was rated favorably in terms of its content validity and acceptability for use in residency ***,model realism,compared with human tissue,was poorly *** dry lab production cost was less than US$***:This low-cost procedure-specific dry lab demonstrated evidence of content validity,construct validity,and acceptability for simulating key robotic prostatectomy technical steps and can be used to augment robot-assisted laparoscopic prostatectomy surgical training.

关键词： Robotic surgery education Radical prostatectomy Simulation Dry laboratory Validation

Exercise training mode effects on myokine expression in healthy adults:A systematic review with meta-analysis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2024年第6期13卷 764-779页

作者： Francesco Bettariga Dennis R.Taaffe Daniel A.Galvao Pedro Lopez Chris Bishop Anna Maria Markarian Valentina Natalucci Jin-Soo Kim robert U.Newton Exercise Medicine Research Institute Edith Cowan UniversityJoondalupWA 6027Australia School of Medical and Health Sciences Edith Cowan UniversityJoondalupWA 6027Australia Pleural Medicine Unit Institute for Respiratory HealthPerthWA 6009Australia Medical School Faculty of Health&Medical SciencesUniversity of Western AustraliaPerthWA 6009Australia Grupo de Pesquisa em Exercicio para Populacoes Clinicas(GPCLIN) Universidade de Caxias do SulCaxias do SulRio Grande do Sul 95070-560Brazil London Sport Institute School of Science and TechnologyMiddlesex UniversityLondonNW44BTUK Department of Pathophysiology and Transplantation University of MilanMilan 20133Italy School of Human Movement and Nutrition Sciences University of QueenslandSt.LuciaQLD 4072Australia

Background:The benefits of exercise are well known;however,many of the underlying molecular mechanisms are not fully *** muscle secretes myokines,which mediate muscleorgan *** regulate satellite-cell proliferation and migration,inflammatory cascade,insulin secretion,angiogenesis,fatty oxidation,and cancer *** date,the effects of different exercise modes(namely,aerobic and resistance exercise)on myokine response remain to be *** is crucial considering the clinical implementation of exercise to enhance general health and wellbeing and as a medical ***:A systematic search was undertaken in PubMed,MEDLINE,CINAHL,Embase,SPORTDiscus,andWeb of Science in April *** studies examining the effects of a single bout of exercise on interleukin15(IL-15),irisin,secreted protein acidic and rich in cysteine(SPARC),oncostatinM(OSM),and decorin were included.A random-effects meta-analysis was also undertaken to quantify the magnitude of ***:Sixty-two studies were included(n=1193).Overall,exercise appeared to induce small to large increases in myokine expression,with effects observed immediately after to 60 min post-exercise,although these were mostly not statistically *** aerobic and resistance exercise resulted in changes in myokine levels,without any significant difference between training modes,and with the magnitude of change differing across *** levels returned to baseline levels within 180 min to 24 h ***,owing to potential sources of heterogeneity,most changes were not statistically significant,indicating that precise conclusions cannot be ***:Knowledge is limited but expanding with respect to the impact of overall and specific effects of exercise on myokine expression at different time points in the systemic *** research is required to investigate the effects of different exercise modes at multiple time points on myok

关键词： Myokine Resistance exercise Aerobic exercise Cytokine Systemic circulation

在线全文

学校读者我要写书评

暂无评论

面向电铲自主装卸的矿用自卸车斗型优化

吉林大学学报（工学版） 2024年第5期54卷 1227-1236页

作者：谭晓丹王勇澎 robert Hall 徐天爽黄庆学吉林大学机械与航空航天工程学院长春130022 太原重型机械集团有限公司矿山采掘装备及智能制造国家重点实验室太原030024 南达科他州矿业理工大学采矿工程与管理学院拉皮德城57701 太原理工大学机械与运载工程学院太原030024

针对现有电铲自主装卸功能在料堆重构、环境感知、目标识别等领域存在技术难度的现状,从降低自主装卸作业任务难度的角度出发,本文提出了一种以载荷均衡分布为目标的矿用自卸车斗型优化方法。首先,构建了一种基于差分迭代的装卸后自卸... 详细信息

针对现有电铲自主装卸功能在料堆重构、环境感知、目标识别等领域存在技术难度的现状,从降低自主装卸作业任务难度的角度出发,本文提出了一种以载荷均衡分布为目标的矿用自卸车斗型优化方法。首先,构建了一种基于差分迭代的装卸后自卸车斗内料堆的轮廓重构方法,并对料堆质心位置进行计算;其次,建立并验证了模拟电铲装卸过程的离散元仿真方法;再次,利用离散元仿真实验,研究了不同斗型结构参数对斗内料堆质心位置的影响;最后,以横向载荷均布为目标,以纵向载荷分布、行驶安全性、斗容变化为约束对斗型进行优化。结果表明:优化后的斗型与原斗型相比,在保持装载能力和行驶安全性的前提下,极端装卸位置时的载荷分布均匀性显著提升,并具有更大的合理装卸面积和更高的作业效率。

关键词：机械设计及理论自主装卸矿用自卸车载荷分布斗型优化

维普期刊数据库博看期刊