检索结果-南通市图书馆

Bilateral acute angle closure glaucoma precipitated by over the counter oral decongestant

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2014年第2期7卷 387-388页

作者： Elliott Y.Ah-kee james f.li yim University of Glasgow University Avenue Glasgow G12 8QQ United Kingdom Department of Ophthalmology University Hospital AyrDalmellington Road Ayr Glasgow KA6 6DX United Kingdom

Dear Sir,We hereby report a case of bilateral acute angle closure glaucoma secondary to a systemic decongestant containing pseudoephedrine freely available over the *** angle closure glaucoma is an ocular *** recognition and treatment inevitably leads to permanent visual *** angle closure occurs as a result of obstruction to aqueous drainage by blockage of the trabecular meshwork by the *** presenting symptoms include acute onset of ocular pain,headache and blurred *** clinical examination,it is characterized by a markedly raised IOP of above 21 mm Hg together with

关键词： oral Bilateral acute angle closure glaucoma precipitated by over the counter oral decongestant over

Treatment review of sight threatening circumscribed choroidal haemangioma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2010年第2期3卷 168-171页

作者： james fT li yim Teresa Sandinha Jan M Kerr Diana Ritchie Ewan G Kemp Tennent Institute of Ophthalmology GlasgowScotlandUK Beatson Oncology Centre GlasgowScotlandUK

AIMTo describe our clinical experience in treating circumscribed choroidal haemangioma (CCH) in a tertiary referral centre over a fifteen year period prior to photodynamic therapy.

关键词： circumscribed choroidal haemangioma plaque brachytherapy transpupillary thermotherapy

Regulating interfacial stability of SiO_(x) anode with fluoride-abundant solid–electrolyte interphase by fluorine-functionalized additive

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第2期43卷 671-681页

作者： Subin Lee Taeeun yim Advanced Batteries Laboratory Department of ChemistryIncheon National UniversityIncheon22012Republic of Korea Research Institute of Basic Sciences College of Natural ScienceIncheon National UniversityIncheon22012Republic of Korea

Silicon oxide(SiO_(x))has received remarkable attention as a next-generation battery material;however,the sudden decrease in the cycling retention constitutes a significant challenge in facilitating its ***(2,2,2-trifluoroethyl)phosphite(TTfP),which can control parasitic reactions such as the pulverization of SiO_(x)anode materials and electrolyte decomposition,has been proposed to improve the lifespan of the *** electrochemical reduction of TTfP results in solid-electrolyte interphase(SEI)layers that are mainly composed of.lif,which occur at a higher potential than the working potential of the SiO_(x)anode and carbonate-based *** electrolyte with TTfP exhibited a substantial improvement in cycling retention after 100 cycles,whereas the standard electrolyte showed acutely decreased *** thickness of the SiO_(x)anode with TTfP also changed only slightly without any considerable delamination spots,whereas the SiO_(x)anode without TTfP was prominently deformed by an enormous volume expansion with several internal *** cycled SiO_(x)anode with TTfP exhibited less increase in resistance after cycling than that in the absence of TTfP,in addition to fewer decomposition adducts in corresponding X-ray photoelectron spectroscopy(XPS)analyses between the cycled SiO_(x)*** results demonstrate that TTfP formed SEI layers at the SiO_(x)interface,which substantially reduced the pulverization of the SiO_(x)anode materials;in addition,electrolyte decomposition at the interface decreased,which led to improved cycling retention.

关键词： lithium-ion batteries(liBs) Silicon oxide anode Electrolyte Additive Solid-electrolyte interphases(SEI) Tris(2,2,2-trifluoroethyl)phosphite

Nonylphenol in bivalves and sediments in the northeast coast of China

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2010年第11期22卷 1735-1740页

作者： Juan Wang Won-joon Shim Un-hynk yim Narayanan Kannan Donghao li Key Laboratory of Nature Resources of Changbai Mountain and functional Molecular Ministry of Education of China Yanbian University Yanji 133002 China. Oil and POPs Research Group Korea Ocean Research and Development Institute Geoje-shi 656-834 Korea

To understand nonylphenol （NP） contamination in the northeast coastal environment in China, NP was determined in 19 sediment and 20 bivalve samples collected during November 2005. NP was identified in all sediment samples in the range of 8.8 to 1.0 × 10^3 ng/g dw （dry weight）, with an average of 0.12 × 10^3 ng/g dw. Most of the bivalve samples （oysters and mussels） contained detectable amounts of NP that ranged from ND （not detected） to 7.6 × 10^3 ng/g dw, with an average value of 0.79 × 10^3 ng/g dw. These results indicated that NP is ubiquitous in sediments and bivalves from the northeast coast of China, and are even present in bivalves sold as seafood. Serious contamination with NP was recorded off the coast of Bohai Strait and in semi-enclosed coastal environment such as Jiaozhou Bay and liaodong Bay. Possible environmental and human health implications were understood in this study.

关键词： nonylphenol Yellow Sea Bohai Sea sediment bivalve

Anti-perovskite carbides and nitrides A3BX: A new family of damage tolerant ceramics

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2020年第5期40卷 64-71页

作者： Wei Zhang Yuchen liu Yanchun Zhou Wai-yim Ching Qian li Wenxian li Jiong Yang Bin liu School of Materials Science and Engineering Shanghai UniversityShanghai 200444China Science and Technology on Advanced functional Composite Laboratory Aerospace Research Institute of Materials and Processing TechnologyBeijing 100076China Department of Physics and Astronomy University of Missouri-Kansas CityKansas CityMO 64110USA Materials Genome Institute Shanghai UniversityShanghai 200444China

Synergy effect of high stiffness and good damage tolerance is always the focus of the development of novel structural ***,a new strategy on the future damage tolerant material design is proposed to merge the strong covalent bonds into the easy shear deformed A3B metallic *** goal is realized by studying 126 A3BX phases and establishing a database on their mechanical properties through highthroughput first principles *** combination strategies of A3B metallic box and XA3 octahedra show intensive influences on the expected mechanical *** family includes 49 quasi-ductile *** them,four compounds(Ti3AlN,Mn3CuN,Ti3TlN and Ni3SnN)exhibit excellent damage tolerance and the other six compounds(Mn3NiN,Mn3GaC,Mn3GaN,Mn3SnC,Cr3SnN,Co3AlC)show both damage tolerance and high *** competitive high temperature properties are demonstrated through the detailed investigation on the typical cases of Co3Al C and Ti3 Tl *** study leads a novel direction for the design of the future quasi-ductile and high stiffness ceramics.

关键词： Ceramics High-throughput calculation A3BX phases Damage tolerance

Critical role of corrosion inhibitors modified by silyl ether functional groups on electrochemical performances of.lithium manganese oxides

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2020年第12期29卷 425-433页

作者： Min Ji Seong Taeeun yim Department of Chemistry Incheon National UniversityYeonsu-gu 22012IncheonRepublic of Korea Research Institute of Basic Sciences College of Natural ScienceIncheon National UniversityYeonsu-gu 22012IncheonRepublic of Korea

lithium manganese oxides(li Mn2 O4, LMO) have attracted significant attention as important cathode materials for lithium-ion batteries(liBs), which require fast charging based on their intrinsic electrochemical properties. However, these properties are limited by the rapid fading of cycling retention, particularly at high temperatures, because of the severe Mn corrosion triggered by the chemical reaction with fluoride(f-) species existing in the cell. To alleviate this issue, three types of silyl ether(Si–O)-functionalized task-specific additives are proposed, namely methoxytrimethylsilane, dimethoxydimethylsilane, and trimethoxymethylsilane. Ex-situ NMR analyses demonstrated that the Si-additives selectively scavenged the f-species as Si forms new chemical bonds with f via a nucleophilic substitution reaction due to the high binding affinity of Si with f-, thereby leading to a decrease in the f concentration in the cell. furthermore, the addition of Si-additives in the electrolyte did not significantly affect the ionic conductivity or electrochemical stability of the electrolyte, indicating that these additives are compatible with conventional electrolytes. In addition, the cells cycled with Si-additives exhibited improved cycling retention at room temperature and 45 °C. Among these candidates, a combination of MTSi and the LMO cathode was found to be the most suitable choice in terms of cycling retention(71.0%), whereas the cell cycled with the standard electrolyte suffered from the fading of cycling retention triggered by Mn dissolution(64.4%). Additional ex-situ analyses of the cycled electrodes using SEM, TEM, EIS, XPS, and ICP-MS demonstrated that the use of Si-additives not only improved the surface stability of the LMO cathode but also that of the graphite anode, as the Si-additives prevent Mn corrosion. This inhibits the formation of cracks on the surface of the LMO cathode, facilitating the formation of a stable solid electrolyte interphase layer on the su

关键词： lithium-ion batteries lithium manganese oxide cathode Electrolyte additive Corrosion Silyl ether fluoride scavenger

Homoclinic and heteroclinic solutions of cubic strongly nonlinear autonomous oscillators by hyperbolic lindstedt-Poincaré method

在线全文

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2010年第3期53卷 692-702页

作者： SZE Kam yim Department of Mechanical Engineering The University of Hong Kong

The hyperbolic lindstedt-Poincaré method is applied to determine the homoclinic and heteroclinic solutions of cubic strongly nonlinear oscillators of the form x + c1 x + c3 x 3= ε f (μ,x,x).In the method,the hyperbolic functions are employed instead of the periodic functions in the lindstedt-Poincaré *** value of parameter μ under which there exists homoclinic or heteroclinic orbit can be determined by the perturbation *** applications are studied in *** illustrate the accuracy of the present method,its predictions are compared with those of Runge-Kutta method.

关键词： lindstedt-Poincaré Method nonlinear autonomous oscillator homoclinic orbit heteroclinic orbit

Extracellular matrix and biomimetic engineering microenvironment for neuronal differentiation

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2020年第4期15卷 573-585页

作者： Deepak Jain Sabrina Mattiassi Eyleen L.Goh Evelyn K.f.yim Department of Chemical Engineering University of WaterlooWaterlooOntarioCanada Neuroscience Academic Clinical Programme Duke-NUS Medical SchoolSingapore

Extracellular matrix(ECM)influences cell differentiation through its structural and biochemical *** nervous system,neuronal behavior is influenced by these ECMs structures which are present in a meshwork,fibrous,or tubular forms encompassing specific molecular *** addition to contact guidance,ECM composition and structures also exert its effect on neuronal *** short report reviewed the native ECM structure and composition in central nervous system and peripheral nervous system,and their impact on neural regeneration and neuronal *** topographies,stem cells have been differentiated to ***,focussing on engineered biomimicking topographies,we highlighted the role of anisotropic topographies in stem cell differentiation to neurons and its recent temporal application for efficient neuronal differentiation.

关键词： biomimetic platforms biophysical cues contact guidance extracellular matrix neuronal development neural regeneration neural stem cell niche neuronal differentiation neuronal maturation stem cell topography

Synthesis and Ex Situ Doping of ZnTe and ZnSe Nanostructures with Extreme Aspect Ratios

在线全文

学校读者我要写书评

暂无评论

Nano Research 2009年第12期2卷 931-937页

作者： Joanne W.L.yim Deirdre Chen Gregory f.Brown Junqiao Wu Department of Materials Science and Engineering University of CaliforniaBerkeleyCA 94720USA Materials Sciences Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

We report synthesis windows for growth of millimeter-long ZnTe nanoribbons and ZnSe nanowires using vapor *** tuning the local conditions at the growth substrate,high aspect ratio nanostructures can be synthesized.A Cu-ion immersion doping method was applied,producing strongly p-type conduction in ZnTe and ionic conduction in *** extreme aspect ratio wide-bandgap semiconductors have great potential for high density nanostructured optoelectronic circuits.

关键词： Aspect ratio doping nanowires zinc selenide zinc telluride