检索结果-南通市图书馆

Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy Engineering for Ultra‑thin Electromagnetic Wave Absorber

引用

Nano-Micro Letters 2025年第1期17卷 424-438页

作者： Honghan Wang Xinyu Xiao Shangru Zhai Chuang Xue guangping Zheng Deqing Zhang Renchao che Junye che.g Liaoning Key Lab of Lignocellulose chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China

the synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engineering of conductive/dielectric *** migration modes within HEAs as manipulated by the electronegativity,valence electron configurations and molar proportions of constituent elements determine the steady state and efficiency of equivalent ***,enlightened by skin-like effect,a reformative carbothermal shock method using carbonized cellulose paper(CCP)as carbon supporter is used to preserve the oxygencontaining functional groups(O·)of carbonized cellulose fibers(CCF).Nucleation of HEAs and construction of emblematic shell-core CCF/HEAs heterointerfaces are inextricably linked to carbon metabolism induced by O·.Meanwhile,the electron migration mode of switchable electronrich sites promotes the orientation polarization of anisotropic equivalent *** virtue of the reinforcement strategy,CCP/HEAs composite prepared by 35%molar ratio of Mn element(CCP/HEAs-Mn_(2.15))achieves efficient electromagnetic wave(EMW)absorption of−51.35 dB at an ultra-thin thickness of 1.03 *** mechanisms of the resulting dielectric properties of HEAs-based EMW absorbing materials are elucidated by combining theoretical calculations with experimental characterizations,which provide theoretical bases and feasible strategies for the simulation and practical application of electromagnetic functional devices(e.g.,ultra-wideband bandpass filter).

关键词： High-entropy alloys Carbothermal shock Switchable electron migration modes Emblematic shell-core heterointerfaces Ultra-thin thickness

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

“Zero‑Strain” NiNb_(2)O_(6) Fibers for All‑Climate Lithium Storage

引用

Nano-Micro Letters 2025年第1期17卷 348-360页

作者： Yan Zhao Qiang Yuan Liting Yang guisheng Liang Yifeng che.g Limin Wu Chunfu Lin Renchao che College of Physics Donghua UniversityShanghai 201620People’s Republic of China School of Materials Science and Engineering Institute of Materials for Energy and EnvironmentQingdao UniversityQingdao 266071People’s Republic of China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Inner Mongolia University Hohhot 010021People’s Republic of China

Niobates are promising all-climate Li^(+)-storage anode material due to their fast charge transport,large specific capacities,and resistance to electrolyte ***,their moderate unit-cellvolume expansion(generally 5%–10%)during Li^(+)storage causes unsatisfactory long-term ***,“zero-strain”NiNb_(2)O_(6) fibers are explored as a new anode material with comprehensively good electrochemical *** Li^(+)storage,the expansion of electrochemical inactive NiO_(6) octahedra almost fully offsets the shrinkage of active NbO_(6) octahedra through reversible O *** superior volume-accommodation capability of the NiO_(6) layers guarantees the“zero-strain”behavior of NiNb_(2)O_(6) in a broad temperature range(0.53%//0.51%//0.74%at 25//−10//60℃),leading to the excellent cyclability of the NiNb_(2)O_(6) fibers(92.8%//99.2%//91.1%capacity retention after 1000//2000//1000 cycles at 10C and 25//−10//60℃).this NiNb_(2)O_(6) material further exhibits a large reversible capacity(300//184//318 mAh g−1 at 0.1C and 25//−10//60℃)and outstanding rate performance(10 to 0.5C capacity percentage of 64.3%//50.0%//65.4%at 25//−10//60℃).therefore,the NiNb_(2)O_(6) fibers are especially suitable for large-capacity,fast-charging,long-life,and all-climate lithium-ion batteries.

关键词： NiNb_(2)O_(6)porous fiber “Zero-strain”mechanism Electrochemical property Harsh-temperature operation Operando characterization

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

Description of the song of the Nilgiri thrush(Zoothera [aurea] neilgherriensis) and song differentiation across the Zoothera dauma species complex

引用

Avian Research 2018年第3期9卷 273-279页

作者： jason t.Weir Department of Ecology and Evolutionary Biology University of Toronto Department of Biological Sciences University of Toronto Scarborough Department of Natural History Royal Ontario Museum

Background: taxonomic treatment of the Zoothera dauma species complex is highly variable and has been hampered by the absence of song recordings for the Nilgiri thrush(Zoothera [aurea] neilgherriensis).Methods: I obtained two recordings of the song of neigherriensis from southern Indian. Here I publish sonograms and analyze song recordings for all but one currently described taxon from the Eurasian portion of the geographic range of this species complex. Principal component analyses were used to investigate song differences between ***: the song of neigherriensis is a highly complex series of strophes remarkably similar to the song of the insular Zoothera major. Vocal analyses across the complex indicate four key groups of taxa differentiated in their songs:(1) simple flat whistled songs which include the northern aurea, toratugumi and the undescribed taiwan population;(2) eastern populations of dauma(reported here for the first time) which sing like northern birds but with much broader bandwidth,(3) strongly down-slurred, thin whistles of tropical resident imbricata of Sri Lanka and horsfieldi of Indonesia, and(4) highly complex songs of Himalayan dauma, neilgherriensis and ***: Zoothera dauma is unlikely to represent a single species given the simple singing populations from its eastern range and highly complex song from the Himalayan portion of its range. neilgherriensis should either be transferred from Zoothera aurea, where it is currently classified as a subspecies, and be placed as a subspecies within Z. dauma from the Himalayas or it should be recognized as a distinct species. given the small number of songs available for analyses, I suggest the former course until it can be clearly demonstrated that neilgherriensis and Himalayan dauma are vocally distinct.

关键词： Nilgiri thrush neilgherriensis Zoothera dauma Song taxonomy

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

Strain effect on graphene nanoribbon carrier statistic in the presence of non-parabolic band structure

引用

Chinese Physics B 2016年第9期25卷 480-483页

作者： N A Izuani che Rosid M t Ahmadi Razali Ismail Department of Electronics and Computer Engineering Faculty of Electrical EngineeringUniversiti Teknologi Malaysia Nanoelectronic group Physics DepartmentFaculty of ScienceUrmia University

the effect of tensile uniaxial strain on the non-parabolic electronic band structure of armchair graphene nanoribbon（AgNR） is *** addition,the density of states and the carrier statistic based on the tight-binding Hamiltonian are modeled *** is found that the property of AgNR in the non-parabolic band region is varied by the *** tunable energy band gap in AgNR upon strain at the minimum energy is described for each of n-AgNR families in the non-parabolic *** behavior of AgNR in the presence of strain is attributed to the breakable AgNR electronic band structure,which varies the physical properties from its *** linear relation between the energy gap and the electrical properties is featured to further explain the characteristic of the deformed AgNR upon strain.

关键词： strain graphene nanoribbon uniaxial strain current–voltage characteristic

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

Astrocytic role of thy-1 induced inhibition of axonal sprouting

引用

Neural Regeneration Research 2021年第6期16卷 1192-1193页

作者： Sara t.Whiteman jason M.Askvig Department of Biology Concordia CollegeMoorheadMNUSA

thy-1 as an“anti-sprouting”factor:Since the identification of thy-1(CD-90)in 1964 by Reif and Allen,the precise functions of this glycosyl phosphatidylinositol-anchored surface protein within the central nervous system have been difficult to ***-1 is a 110-amino acid cellular adhesion molecule that plays a role in cell-cell communication by interacting with other cellular adhesion molecules,including integrins(Leyton et al.,2001).While found on a diverse array of cells within the body,thy-1 is present on the surface of almost every neuron in the brain(Morris and grosveld,1989).

关键词： precise system interacting

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

INFLUENCE OF SILICON IN StEELS ON gALVANIZED COAtINgS

引用

Acta Metallurgica Sinica(English Letters) 2006年第2期19卷 85-90页

作者： C.S. che J.t. Lu g. Kong Q.Y. Xu J.H. chen College of Materials Science and Engineering South China University of Technology Guangzhou 510640 China

After steel sheets （0.37wt%Si） pre-electroplated with a thin layer of pure Fe were immersed in molten zinc for various time, the change in the microstructure of the galvanized coating on the steel and the change of α-Fe/Г interface were studied. the EDS （energy dispersive sepectroscopy） resuits show that excessive silicon accumulates on the surface of the steel substrate due to the low solubility of silicon in the Г layer after the Fe layer is depleted by the increasing growth of the compound layers. With the movement of α-Fe/Г interface towards the substrate by the Fe/Zn reaction, silicon-rich α-Fe peels off from the substrate and breaks into particles. the particles, much like an inert marker in a Kirkendall effect experiment, move towards the δ layer through the Г layer because silicon-rich α-Fe can not be adsorbed in the Г layer. On reaching the 8/F interface, the particles quickly dissolve in the δ layer, and accelerate its growth, resulting in the gradual disappearance of the Г layer. At the same time, the normal coating is quickly changed into coatings typical of reactive steels as silicon dissolved in the δ layer soon diffuses toward the ζ layer. A similar process may happen in the initial stage of galvanizing reactive steels on a small scale, although it is hard to be observed.

关键词： Zn coating intermetallics steel electrodeposition

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

geochemical Signatures of Early Paleogene Source Rocks in the Sanshui Basin, South China

引用

Acta geologica Sinica(English Edition) 2010年第1期84卷 145-154页

作者： LIU Chunlian Franz t. FURSICH cheN Ling che Xiaoguang WU Jie Department of Earth Sciences Sun Yat-Sen University Guangzhou 510275 China geoZentrum Nordbayern der Universitgit Erlangen Erlangen D-91054 Germany

the Honggang member of the early Paleogene Buxin Formation is the main source rock in the Sanshui Basin, characterized by organic-rich black shales with the cyclic recurrence of organic- poor sediments. the geochemical characteristics of the Honggang member have been documented to determine the organic matter types and depositional environments in this paper. the organic matter of the black shales mainly consists of a mixture of land plant-derived and phytoplankton-derived organic matter. total organic carbon content （tOC）-sulfur-iron （Fe） relationships suggest that the organicrich black shales were deposited under dysoxic-to-euxinic water conditions. the time that iron minerals remained in contact with H2S in anoxic waters possibly influenced the formation of syngenetic pyrite, and organic carbon controlled the formation of diagenetic pyrite. Organic-poor intervals usually show pyrite sulfur enrichment and higher degree of pyritization values relative to low organic carbon contents. this resulted from HS- diffusing downward from overlying organic-rich sediments and formed Fe sulfides through reactions with sufficient Fe. trace elements generally exhibit low concentrations and little tOC dependence, suggesting some degree of depletion in these elements in the early Paleogene sediments of the Sanshui Basin. this probably resulted from cyclic recurrences of oxic benthic conditions, which promoted the remobilization of trace elements and caused the low concentration of trace elements.

关键词： organic matter type carbon-sulfur-iron relationship trace element black shale SanshuiBasin

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

Mobile stroke care expedites intravenous thrombolysis and endovascular thrombectomy

引用

Stroke & Vascular Neurology 2022年第3期7卷 209-214页

作者： Matthew t Bender thomas K Mattingly Redi Rahmani Diana Proper Walter A Burnett jason L Burgett Joshua LEsperance Jeremy t Cushman Webster H Pilcher Curtis g Benesch Adam g Kelly tarun Bhalla Department of Neurosurgery University of Rochester Medical CenterRochesterNew YorkUSA Department of Emergency Medicine University of Rochester Medical CenterRochesterNew YorkUSA Department of Neurology University of Rochester Medical CenterRochesterNew YorkUSA

Background the number of mobile stroke programmes has increased with evidence,showing they expedite intravenous *** questions include whether time savings extend to patients eligible for endovascular therapy and impact clinical *** Our mobile stroke unit(MSU),based at an academic medical centre in upstate New York,launched in October *** reviewed prospective observational data sets over 26 months to identify MSU and non-MSU emergency medical service(EMS)patients who underwent intravenous thrombolysis or endovascular thrombectomy for comparison of angiographic and clinical *** Over 568 days in service,the MSU was dispatched 1489 times(2.6/day)and transported 300 patients(20%of dispatches).Intravenous tissue plasminogen activator(tPA)was administered to 57 MSU patients and the average time from 911 call-to tPA was 42.5 min(±9.2),while EMS transported 73 patients who received tPA at 99.4 min(±35.7)(ptients(12%)received tPA from 3.5 hours to 4.5 hours since last known well and would likely have been outside the window with EMS *** thrombectomy was performed on 21 MSU patients with an average 911 call-to groin puncture time of 99.9 min(±18.1),while EMS transported 54 patients who underwent endovascular thrombectomy(Et)at 133.0 min(±37.0)(p=0.0002).there was no difference between MSU and traditional EMS in modified Rankin score at 90-day clinic follow-up for patients undergoing intravenous thrombolysis or endovascular thrombectomy,whether assessed as a dichotomous or ordinal *** Mobile stroke care expedited both intravenous thrombolysis and endovascular *** is an ongoing need to show improved functional outcomes with MSU care.

关键词： intravenous throm endovascular

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

Utility of positron emission tomography-computed tomography scan in detecting residual hepatocellular carcinoma post treatment:Series of case reports

引用

World Journal of gastrointestinal Oncology 2020年第3期12卷 358-364页

作者： jason t che.g Nelly E tan Michael L Volk transplantation Institute Loma Linda University Medical CenterSan BernardinoCA 92408United States Department of Radiology Loma Linda University Medical CenterLoma LindaCA 92354United States

BACKgROUND Multi-phase computed tomography(Ct)or magnetic resonance imaging(MRI)has been the standard of care for hepatocellular carcinoma(HCC)diagnosis for *** SUMMARY We report a case series of four patients in whom positron emission tomographycomputed tomography(PEt-Ct)scan complemented the conventional Ct/MRI scans in evaluating treatment *** these four cases the conventional multi-phase Ct and MRI failed to identify residual HCC disease post-treatment,while PEt-Ct complemented and aided in treatment response *** each case,the addition of PEt-Ct identified and located residual HCC disease,allowed retreatment,and altered medical *** this case series suggests that PEt-Ct should perhaps play a role in the HCC management algorithm,in addition to the conventional contrast-enhanced multiphase scans.

关键词： Hepatocellular carcinoma Positron emission tomography Contrast-enhanced multiphase scan Cirrhosis Residual cancer treatment response evaluation Case series

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

Using Folding Ensemble and Stem Probability Maximization Methods to Predict RNA H-type Pseudoknots

引用

tsinghua Science and technology 2012年第6期17卷 691-700页

作者： Junilda Spirollari Shawn Xiong Wang jason t.L. Wang Bioinformatics Program Department of Computer Science New Jersey Institute of Technology University Heights Department of Computer Science California State University

We present in this paper an ab initio method, named KnotFold, for RNA H-type pseudoknot prediction. Our method employs an ensemble of RNA folding tools and a filtering heuristic to generate a set of pseudoknot-free stems, and then predicts pseudoknots by utilizing a search technique with a pseudo-probability scoring scheme. Experimental results show that KnotFold achieves higher sensitivity than existing methods. the KnotFold package with documentation is freely available at http：//***/KnotFold.

关键词： RNA structure pseudoknots tool ensemble

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：