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Ultra-thin Glass Film Coated with Graphene: A New Material for Spontaneous Emission Enhancement of Quantum Emitter

Lu Jiang2015-01-01OpenAlex

We propose an ultra-thin glass film coated with graphene as a new kind of surrounding material which can greatly enhance spontaneous emission rate (SER) of dipole emitter embedded in it. With properly designed parameters, numerical results show that SER-enhanced factors as high as 1.286 9 10 6 can be achieved. The inf…

Graphene research and applicationsPlasmonic and Surface Plasmon ResearchNear-Field Optical Microscopy

Rapid in situ Crystallization and Catalytic Performance of Cu_3(BTC)_2-based Film on Copper Mesh

Hua Cheng2015-01-01Journal of Inorganic Materials

Cu3(BTC)2-based(BTC=1, 3, 5-benzenetricarboxylic acid) metal-organic framework film was synthesized on the surface of copper mesh through in situ crystallization at room temperature. In this film, Keggin-type H3PMo12O40 was embedded in partial cavity of Cu3(BTC)2. The film was characterized by X-Ray powder diffraction…

Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis

Purification of a Diatom and Its Identification to Cylindrotheca closterium

Wang、Song、Zhang 等 10 位作者2015-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

A diatom was purified with colony selection and continuous dilution methods. It was identified to Cylindrotheca closterium according to its morphological characteristics and rbc L and 18 s r RNA gene sequences. The alga was not sensitive to ampicillin and neomycin, but sensitive to chloramphenicol which inhibited its…

Aquatic Ecosystems and Phytoplankton DynamicsAlgal biology and biofuel productionDiatoms and Algae Research

Complex variable method for an anti-plane elliptical cavity of one-dimensional hexagonal piezoelectric quasicrystals

Yu Yu、Jing、Guo 等 6 位作者2015-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Based on the fundamental equations of piezoelasticity of quasicrystal media, using the symmetry operations of point groups, the linear piezoelasticity behavior of one-dimensional(1D)hexagonal quasicrystals is investigated and the piezoelasticity problem of 1D hexagonal quasicrystals is decomposed into two uncoupled pr…

Quasicrystal Structures and Properties

Tests for bubble pulse features and bubble plume under hypobaric condition

Cui Ji2015-01-01Zhendong yu chongji

Near-field underwater explosion bubble is coupled with a ship's hull,and free surface of liquid due to a prodigious buoyancy exerted on it. This problem can't be solved with theory or numerical methods,due to the complexity of boundaries and the sensitivity of bubble breaking to controlling parameters. The similarity…

Underwater Vehicles and Communication SystemsUnderwater Acoustics ResearchUltrasound and Cavitation Phenomena

Influence of High-Pressure Nitrogenation on the Structure, Magnetism and Microwave Absorption Properties of SmFeloMO2

Naikun、Sun、Jie Jie 等 12 位作者2015-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Nitrogenation of Sm Fe10Mo2 powders was performed in a self-made furnace under a high-purity N2 atmosphere up to 40 MPa at 500 °C. Upon nitrogenation at atmospheric pressure, the lattice parameters a and c increase by0.5% and 2.7%, respectively, whereas the Curie temperature TCincreases from 519 to 633 K. With further…

Electromagnetic wave absorption materials

Interaction of a Novel Anionic Gemini Surfactant Containing a Triazine Ring with Cetyltrimethylammonium Bromide in Aqueous Solution

Zhiyong HuLiqiong WangJianfeng Guo、Duanlin CaoJing、ChangLi Fan2015-01-01OpenAlex

The interaction between a novel anionic gemini surfactant containing a triazine ring, denoted as C8-G, and cetyltrimethylammonium bromide (CTAB) has been investigated in aqueous solution. The surface tension vs log. molar concentration plots of the individual surfactants and their mixtures were measured at different t…

Advanced Polymer Synthesis and CharacterizationSurfactants and Colloidal SystemsPolymer Surface Interaction Studies

Electrospun and woven silk fibroin/poly(lactic-coglycolic acid) nerve guidance conduits for repairing peripheral nerve injury

Yaling、Wang、Xiaomei 等 10 位作者2015-01-01中国神经再生研究:英文版

We have designed a novel nerve guidance conduit(NGC) made from silk fibroin and poly(lactic-co-glycolic acid) through electrospinning and weaving(ESP-NGCs). Several physical and biological properties of the ESP-NGCs were assessed in order to evaluate their biocompatibility. The physical properties, including thickness…

Nerve injury and regenerationElectrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applications

Synthesis, self-assembly and photo-responsive behavior of AB2 shaped amphiphilic azo block copolymer

Ren-Bo、Wei Wei、Xiao-gong 等 6 位作者2015-01-01中国化学快报:英文版

In this work, we report the synthesis of AB2 shaped amphiphilic azo block copolymer by macromolecular azo coupling reaction. The product and intermediates were characterized by various methods. The selfassembly in selected solvents and photo-responsive behavior of the copolymer were studied by means of UV–vis spectrop…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced Polymer Synthesis and CharacterizationPhotochromic and Fluorescence Chemistry

Black Nano Titania for Efficient Solar Energy Utilization

Zhu Guilia2015-01-01OpenAlex

Insufficient visible-light power conversion has been a great challenge for nanotitania photocatalysts in solar energy utilization.Recently,a new material—black Ti O2 has attracted enormous attention due to its greatly enhanced solar absorption and photocatalytic activity. Our group has made tremendous contributions to…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesQuantum Dots Synthesis And Properties

Method for correcting thermal neutron self-shielding effect for aqueous bulk sample analysis by PGNAA technique

Wenbao JiaCan、ChengDaqian Hei、Yongsheng LingHongtao 等 4 位作者2015-01-01OpenAlex

A method based on internal standard is pro- posed to correct the thermal neutron self-shielding effect of aqueous samples containing elements with large thermal neutron absorption cross-section using prompt gamma-ray neutron activation analysis. The experiments for determi- nation of boron and cadmium dissolved in wat…

Nuclear reactor physics and engineeringNuclear Physics and ApplicationsRadiation Shielding Materials Analysis

Lithium-assisted exfoliation of pristine graphite for few-layer graphene nanosheets

Minwei、Xu、Huiting 等 14 位作者2015-01-01纳米研究:英文版

-hybridized 结构。可能的二拍子的圆舞机制,包含在石墨层和一个随后的 lithiation 过程的边附近被套住的否定费用,被建议在石墨夹层内解释锂的插入。如果必要,现在的脱落能被重复并且更薄(单身者或 23 层) graphene 能在大规模上被完成。这个简单过程为太古的石墨的脱落提供一个有效过程,它可能支持 graphene 的未来应用程序。

Advancements in Battery MaterialsGraphene research and applicationsSemiconductor materials and interfaces

Synthesis and Characterization of Coordination Polymers Based on 5-Azidoisophthalic Acid

MA Benhu2015-01-01OpenAlex

Four coordination polymers,Co( aip)( py)3( 1),Co( aip)( 4,4'-bipy)( 2),Mn( aip)( 4,4'-bipy)( 3) and Mn( aip)( dptz)( 4) [Py: pyridine; 4,4'-bipy: 4,4'-dipyridyl; dptz: 3,6-bis( 4-pyridyl)-1,2,4,5-tetrazine] were synthesized by the reaction of 5-azidoisophthalic acid( H2aip) and auxiliary ligands with transition metal.…

Metal-Organic Frameworks: Synthesis and ApplicationsMetal complexes synthesis and propertiesMagnetism in coordination complexes

Effect of Heat Treatment Process on Mechanical Properties of a Medium Carbon Low Alloy Steel

Pan We2015-01-01Cailiao yanjiu xuebao

Effect of heat treatment processes on the microstructure and mechanical properties of a medium carbon low alloy steel was studied by means of color metallography, XRD and mechanical tests.The adopted heat treatment processes included air quenching and then austempering in salt bath, watercooling and then austempering…

Microstructure and Mechanical Properties of SteelsMetal Alloys Wear and PropertiesEngineering Applied Research

Three-dimensional simulation of sintering crunodes of metal powders or fibers by level set method

谌东东、郑洲顺、王建忠 等 5 位作者2015-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

The difference of sintering crunodes of metal powders and fibers is discussed. The mathematical model of the surface diffusion described by the difference in mean curvature is defined as a Hamilton-Jacobi-type equation, and the model is numerically solved by the level set method. The three-dimensional numerical simula…

Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesPowder Metallurgy Techniques and Materials

Fabrication of ion doped WO3 photocatalysts through bulk and surface doping

Xiaoying、Wang、Laixue 等 8 位作者2015-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

Na+doped WO3 nanowire photocatalysts were prepared by using post-treatment(surface doping) and in situ(bulk doping) doping methods. Photocatalytic degradation of Methyl Blue was tested under visible light irradiation, the results showed that 1 wt.% Na+bulk-doped WO3 performed better, with higher photoactivity than sur…

Advanced Photocatalysis TechniquesGas Sensing Nanomaterials and SensorsTransition Metal Oxide Nanomaterials

Morphological and Dimensional Control via Assembly of Polyaniline Crystals

陶玉仑、Jinhua、Yao 等 15 位作者2015-01-01Acta Scientiarum Naturalium Universitatis Sunyatseni

一条灵巧、一般的线路到 polyaniline (PANI ) 的新一代柠檬性的酸(CA ) 晶体象 2D nanoplates, 2D nanosheets 和由自我装配的 3D microrods 那样 - 叠相互作用被报导。戏剧, 3D 矩形的塑造的 microrods 和 2D nanosheets 是 SAED 模式和 HRTEM 图象显示的单个晶体。而且,方法不取决于任何特定的设备或加热,冷却并且复杂过程。新奇 polyaniline 晶体将为下一代是有用的器官的电子学象 nano 晶体管那样。

Conducting polymers and applications

Effect of Carbon Nanotube Content on Electromagnetic Interference Shielding Performance of Carbon Nanotube-Cellulose Composite Materials

Pang Zhi-pen2015-01-01OpenAlex

Composite sheets of carbon nanotubes- cellulose fibers were made by suction filtration method with cellulose fibers as matrix and graphitized CNTs as electroconductive agent. The products were characterized by scanning electron microscopy, shielding effectiveness, four- point probes, and while the effect of carbon nan…

Electromagnetic wave absorption materialsElectromagnetic Compatibility and MeasurementsTransportation Safety and Impact Analysis

An abnormal fluorescence intensity ratio between two green emissions of Er~(3+) caused by heating effect of 980 nm excitation

Zhou Shaoshua2015-01-01OpenAlex

An abnormal fluorescence intensity ratio(FIR) between two green emissions of Er3+ at room temperature, which is larger than a normal value, emerged in many reported articles. However, up to now detailed work has seldom been done to clarify this abnormal phenomenon. In this paper, green upconversion luminescence of the…

Luminescence Properties of Advanced MaterialsSpectroscopy and Laser ApplicationsAtmospheric Ozone and Climate