检索结果-南通市图书馆

Electrochemical Realization of 3D Interconnected MoS_(3)/PPy Nanowire Frameworks as Sulfur-Equivalent Cathode Materials for Li-S Batteries

引用

Energy & Environmental Materials 2024年第2期7卷 9-17页

作者： Hongtao Yu Andreas Siebert Shilin Mei raul Garcia-Diez Roberto Félix Ting Quan Yaolin Xu Johannes Frisch Regan G.Wilks Marcus Bär Chun Pei Yan Lu Department for Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie GmbH(HZB)Hahn-Meitner Platz 114109 BerlinGermany Guangdong Province Key Laboratory of Durability for Marine Civil Engineering School of Civil EngineeringShenzhen UniversityShenzhenGuangdong 518060China Department of Interface Design HZBAlbert-Einstein-Str.1512489 BerlinGermany Energy Materials In-Situ Laboratory Berlin(EMIL) Albert-Einstein-Str.1512489 BerlinGermany Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy(HI ERN) Albert-Einstein-Str.1512489 BerlinGermany Department of Chemistry and Pharmacy Friedrich-Alexander-Universität Erlangen-NürnbergEgerlandstr.391058Erlangen Germany Institute of Chemistry University of Potsdam14467Potsdam Germany

The development of freestanding and binder-free electrode is an effective approach to perform the inherent capacity of active materials and promote the mechanism study by minimizing the interference from ***,we construct a freestanding cathode composed of MoS_(3)/PPy nanowires(NWs)deposited on porous nickel foam(NF)(MoS_(3)/PPy/NF)through electrochemical methods,which can work efficiently as sulfur-equivalent cathode material for Li-S *** structural stability of the MoS_(3)/PPy/NF cathode is greatly enhanced due to its significant tolerance to the volume expansion of MoS_(3)during the lithiation process,which we ascribe to the flexible 3D framework of PPy NWs,leading to superior cycling performance compared to the bulk-MoS_(3)/NF *** the interference of binder and carbon additives,the evolution of the chemical and electronic structure of Mo and S species during the discharge/charge was studied by X-ray absorption near-edge spectroscopy(XANES).The formation of lithium polysulfides was excluded as the driving cathode reaction mechanism,suggesting the great potential of MoS_(3)as a promising sulfur-equivalent cathode material to evade the shuttle effect for Li-S *** present study successfully demonstrates the importance of structural design of freestanding electrode enhancing the cycling performances and revealing the corresponding mechanisms.

关键词： 3D-Network electrochemical lithium-sulfur battery MoS_(3) PPy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Barriers in early detection of colorectal cancer and exploring potential solutions

引用

World Journal of Clinical Oncology 2024年第7期15卷 811-817页

作者： Maryam Aleissa Ernesto raul Drelichman Vijay K Mittal Jasneet Singh Bhullar Department of Surgery Ascension Providence HospitalMichigan State University College of Human MedicineSouthfieldMI 48075United States College of Medicine Princess Norah University HospitalRiyadh 11564Saudi Arabia

This editorial discusses the literature review article by Tonini and Zanni,the paper was published in January 2024,and the authors provided very interesting conclusions regarding existing barriers to the early diagnosis of colon *** cancers do not have identifiable precursors,or there are currently no screening tests to find ***,these cancers do not have preventive screening *** detection is crucial for reducing mortality rates by identifying cancer at an earlier stage through screening,as opposed to no *** cancer develops from precancerous lesions,which can be detected early and potentially prevented and *** detection leads to improved survival rates,decreased complications,and reduced healthcare *** editorial provides a brief description of the biology of colon cancer,emphasizing the contrast in outcomes between early detection and late *** also describe screening programs around the globe and examine the barriers in each ***,we explore potential future solutions to enhance inclusion in screening programs and improve patient compliance.

关键词： Colon cancer Rectal cancer Early detection

来源：

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

仿生土木工程研究进展与展望

引用

土木与环境工程学报（中英文） 2024年第5期46卷 1-15页

作者：仉文岗何祥嵘刘汉龙孙伟鑫韩馥柽 raul Fuentes Gustavo Paneiro 重庆大学土木工程学院重庆400045 亚琛工业大学土木工程学院德国亚琛100600 里斯本大学建筑学院葡萄牙里斯本1649-004

随着城镇化水平不断提升,中国每年新增建筑面积约20亿m2,大规模基础设施建设对土木工程理论和技术创新的要求越来越高。学者们通过研究自然界的增强增韧、水下黏合、钻孔掘进和轻质高强等现象发现,生物体具有独特的外部形态和组织结构,... 详细信息

随着城镇化水平不断提升,中国每年新增建筑面积约20亿m2,大规模基础设施建设对土木工程理论和技术创新的要求越来越高。学者们通过研究自然界的增强增韧、水下黏合、钻孔掘进和轻质高强等现象发现,生物体具有独特的外部形态和组织结构,通过模仿生物体的外部形态、结构特征或运动机理可为土木工程技术创新和可持续发展提供新思路、新原理和新理论。从仿生材料、仿生结构和仿生机械与构筑物3个方面阐述仿生学在土木工程中的应用,列举典型的应用案例,并对仿生土木工程进行总结和展望,为未来的研究提供基础材料。作为新兴的研究方向,仿生土木工程基础理论尚不完善,仿生土木工程涉及生物、材料、结构等多学科的交叉,需要开展不同领域间的协同合作研究。

关键词：仿生土木工程仿生材料仿生结构仿生机械与构筑物

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Functional lumen imaging probe use in a high-volume practice:Practical and technical implications

引用

World Journal of Gastrointestinal Endoscopy 2024年第7期16卷 396-405页

作者： Yan Jiang raul Vazquez-Reyes Afrin Kamal Thomas Zikos George Triadafilopoulos John O Clarke Division of Gastroenterology and Hepatology Stanford University School of MedicineRedwoodCA 94063United States

BACKGROUND The functional lumen imaging probe(FLIP)is a Food and Drug Administration approved tool to aid the diagnosis and management of esophageal ***,widespread adoption of FLIP remains limited and its utility in highvolume practices remains *** To analyze large sample data on clinical use of FLIP and provide insight on several technical aspects when performing *** We conducted a retrospective comparative and descriptive analysis of FLIP procedures performed by a single provider at an academic medical *** was a total of 398 FLIP procedures *** medical records were reviewed and data regarding demographics and procedural details were *** tests,including chi-squared,t-test,and multivariable logistic and linear regression,were *** There was an increase in FLIP cases with each successive time period of 13 months(n=68,146,184,respectively)with notable rises specifically for indications of dysphagia and gastroesophageal reflux *** was a shift toward use of the longer FLIP balloon catheter for diagnostic purposes(overall 70.4%vs 29.6%,P<0.01).Many cases(42.8%)were performed in conjunction with other diagnostics/interventions,such as dilation and wireless pH probe *** were nearly equally performed with anesthesia vs moderate sedation(51.4%anesthesia),with no major *** who had anesthesia were less likely to have recurrent antegrade contractions[odds ratio(OR)=0.4,95%CI:0.3-0.8]and were also more likely to have absent contractility(OR=2.4,95%CI:1.3-CONCLUSION FLIP cases have increased in our practice with expanding indications for its *** limited normative data,providers should be aware of several potential technical issues,including the possible impact of sedation choice when assessing esophageal motility patterns.

关键词： Gastroenterology Endoscopy Functional lumen imaging probe Esophagus Motility

来源：

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

Outcomes and efficacy of magnetic resonance imaging-compatible sacral nerve stimulator for management of fecal incontinence: A multi-institutional study

引用

World Journal of Radiology 2024年第2期16卷 32-39页

作者： Binit Katuwal Amy Thorsen Kunal Kochar Ryba Bhullar Ray King Ernesto raul Drelichman Vijay K Mittal Jasneet Singh Bhullar Department of Surgery Ascension Providence HospitalMichigan State University College of Human MedicineSouthfieldMI 48075United States Department of Colon and Rectal surgery Alina Health Abbott Northwestern HospitalMinneapolisMN 55407United States Colon and Rectal Surgery Advocate Illinois MasonicPark RidgeIL 60068United States Volunteer Student Department of ResearchAscension Providence HospitalSouthfieldMI 48075United States Colon and Rectal Surgery University of WisconsinMadisonWI 53715United States General and Colorectal Surgery Ascension Providence HospitalMichigan State University College of Human MedicineSouthfieldMI 48075United States Department of Surgery Department of Medical EducationAscension Providence HospitalMichigan State University College of Human MedicineSouthfieldMI 48075United States

BACKGROUND Fecal incontinence(FI)is an involuntary passage of fecal matter which can have a significant impact on a patient’s quality of *** modalities of treatment exist for *** nerve stimulation is a well-established treatment for *** the increased need of magnetic resonance imaging(MRI)for diagnostics,the In-terStim which was previously used in sacral nerve stimulation was limited by MRI *** MRI-compatible InterStim was approved by the United States Food and Drug Administration in August 2020 and has been widely *** To evaluate the efficacy,outcomes and complications of the MRI-compatible *** Data of patients who underwent MRI-compatible Medtronic InterStim placement at UPMC Williamsport,University of Minnesota,Advocate Lutheran General Hospital,and University of Wisconsin-Madison was pooled and *** demographics,clinical features,surgical techniques,complications,and outcomes were *** the Reporting of Observational studies in Epidemiology(STROBE)cross-sectional reporting guidelines were *** Seventy-three patients had the InterStim *** mean age was 63.29±12.2 ***-seven(78.1%)patients were females and forty-two(57.5%)patients had *** addition to incontinence,overlapping symptoms included diarrhea(23.3%),fecal urgency(58.9%),and urinary incontinence(28.8%).Fifteen(20.5%)patients underwent Peripheral Nerve Evaluation before proceeding to definite implant ***-two(43.8%)patients underwent rechargeable InterStim ***(4.1%)patients needed removal of the *** of the external lead connection was observed in 7(9.6%)patients after the stage I *** explanation for one patient was due to ***(9.6%)patients had other complications like nerve pain,hematoma,infection,lead fracture,and *** mean follow-up was 6.62±3.5 ***-eight(93.2%)patients reported significant improvement of symptoms on

关键词： Fecal incontinence Sacral nerve stimulation InterStim Magnetic resonance imaging Sacral neuromodulation

来源：

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

On the generalized Hermite-based lattice Boltzmann construction, lattice sets, weights,moments, distribution functions and high-order models

引用

Frontiers of physics 2014年第4期9卷 490-510页

作者： raul Machado Faculty of Engineering and the Environment University of Southampton Southarapton XO171BJ UK

The influence of the use of the generalized Hermite polynomial on the Hermite-based lattice Bofiz- mann （LB） construction approach, lattice sets, the thermal weights, moments and the equilibrium distribution function （EDF） are addressed. A new moment system is proposed. The theoretical possibility to obtain a unique high-order Hermite-based singel relaxation time LB model capable to exactly inatch some first hydrodynamic inoments thermally i） on-Cartesian lattice, ii） with thermal weights in the EDF, iii） whilst the highest possible hydrodynamic moments that are exactly reatched are obtained with the shortest on-Cartesian lattiee sets with some fixed real-valued temperatures, is also analyzed.

关键词： lattice Boltzmann fluid dynamics kinetic theory distribution function

来源：

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

Mapping frequent spatio-temporal wind profile patterns using multi-dimensional sequential pattern mining

引用

International Journal of Digital Earth 2017年第3期10卷 238-256页

作者： Norhakim Yusof raul Zurita-Milla Department of Geo-Information Processing Faculty of Geo-Information Science and Earth Observation(ITC)University of TwenteEnschedeThe Netherlands Department of Geoinformation Faculty of Geoinformation and Real EstateUniversiti Teknologi MalaysiaUTMJohor BahruMalaysia

Holistic understanding of wind behaviour over space,time and height is essential for harvesting wind energy *** study presents a novel approach for mapping frequent wind profile patterns using multidimensional sequential pattern mining(MDSPM).This study is illustrated with a time series of 24 years of European Centre for Medium-Range Weather Forecasts European Reanalysis-Interim gridded(0.125°×0.125°)wind data for the Netherlands every 6 h and at six height *** wind data were first transformed into two spatio-temporal sequence databases(for speed and direction,respectively).Then,the Linear time Closed Itemset Miner Sequence algorithm was used to extract the multidimensional sequential patterns,which were then visualized using a 3D wind rose,a circular histogram and a geographical *** patterns were further analysed to determine their wind shear coefficients and turbulence intensities as well as their spatial overlap with current areas with wind *** analysis identified four frequent wind profile *** of them highly suitable to harvest wind energy at a height of 128 m and 68.97%of the geographical area covered by this pattern already contains wind *** study shows that the proposed approach is capable of efficiently extracting meaningful patterns from complex spatio-temporal datasets.

关键词： Spatio-temporal data mining multi-dimensional sequential pattern mining wind shear coefficient turbulence intensity wind energy

来源：

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

Premigratory fat metabolism in hummingbirds： A Rumsfeldian approach

引用

Current Zoology 2013年第3期59卷 371-380页

作者： raul K. SUAREZ Department of Ecology Evolution and Marine Biology University of California Santa Barbara California 93106 USA

Hummingbird migration is a remarkable feat, given the small body sizes of migratory species, their high metabolic rates during flight and the long distances traveled using fat to fuel the effort. Equally remarkable is the ability of premigratory hummingbirds in the wild to accumulate fat, synthesized from sugar, at rates as high as 10% of body mass per day. This paper summarizes, using Rumsfeldian terminology, ＂known knowns＂ concerning the energetics of hummingbird migration and premi- gratory fattening. Energy metabolism during hover-feeding on floral nectar is fueled directly by dietary sugar through the path- way recently named the ＂sugar oxidation cascade＂. However, flight without feeding for more than a few minutes requires shifting to fat as a fuel. It is proposed that behavior and metabolic fuel choice are coadapted to maximize the rate of fat deposition during premigratory fattening. The hummingbird liver appears to possess extraordinarily high capacities for fatty acid synthesis. The analysis of ＂known knowns＂ leads to identification of ＂known unknowns＂, e.g., the fates of dietary glucose and fructose, the regulation of fat metabolism and metabolic interactions between liver and adipose tissue. The history of science behooves recog- nition of ＂tmknown unknowns＂ that, when discovered serendipitously, might shed new light on fundamental mechanisms as well as human pathological conditions .

关键词： Lipid synthesis Metabolic rate Metabolic regulation Muscle energy metabolism Sugar oxidation

来源：

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

Membrane Trafficking in Plant Immunity

引用

Molecular Plant 2017年第8期10卷 1026-1034页

作者： Yangnan Gu raul Zavaliev Xinnian Dong Tsinghua University-Peking University Joint Center for Life Sciences Beijing 100084 China Center for Plant Biology School of Life Sciences Tsinghua University Beijing 100084 China Howard Hughes Medical Institute Department of Biology Duke University Durham NC 27708 USA

Plants employ sophisticated mechanisms to interact with pathogenic as well as beneficial microbes. Of those, membrane trafficking is key in establishing a rapid and precise response. Upon interaction with pathogenic microbes, surface-localized immune receptors undergo endocytosis for signal transduction and activity regulation while cell wall components, antimicrobial compounds, and defense proteins are delivered to pathogen invasion sites through polarized secretion. To sustain mutualistic associations, host cells also reprogram the membrane trafficking system to accommodate invasive structures of symbi- otic microbes. Here, we provide an analysis of recent advances in understanding the roles of secretory and endocytic membrane trafficking pathways in plant immune activation. We also discuss strategies deployed by adapted microbes to manipulate these pathways to subvert or inhibit plant defense.

关键词： membrane trafficking plant .mmun ty secretion endocytosis

来源：

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

Sharp Bounds for Fractional One-sided Operators

引用

Acta Mathematica Sinica,English Series 2016年第11期32卷 1255-1278页

作者： Maria Silvina RIVEROS raul Emilio VIDAL FaMAF-CIEM UNC-CONICET Ciudad Universitaria 5000 Cdrdoba Argentina

In this paper, we characterize the sharp boundedness of the one-sided fractional maximal function for one-weight and two-weight inequalities. Also a new two-weight testing condition for the one-sided fractional maximal function is introduced extending the work of Martin-Reyes and de la Torre. Improving some extrapolation result for the one-sided case, we get weak sharp bounded estimates for one-sided fractional maximal function and weak and strong sharp bounded estimates for one-sided fractional integral.

关键词： One-sided fractional integrals one-sided maximal fractional function extrapolation Saw-yer weights

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：