In order to reduce the greenhouse effect caused by the rapid increase of CO2 concentration in the atmosphere,it is neces......

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An approximate simulation method has been developed for the shielding effectiveness of a rectangular enclosure with arbi......

采用微乳液法制备了纯相立方和六方晶相NaYF4∶Yb3 ,Er3 发光材料, 微乳液体系选择了CTAB(十六烷基三甲基溴化铵)-正丁醇-正辛烷-......

实验研究了晶相对下转换的影响。Tb3 -Er3 耦合对将一个紫外光子(Tb3 的7F6→5L1)294 nm 剪裁成800 nm (Er3 的4I9/2→4I15/2)......

<正> In our previous studies, two intermediate compounds, La2O2&#183;2BeO and 3La2O3&#183;2BeO, were identified in the s......

<正> The single crystal of LiTaO3 is an important ferro-electric crystal, pcssessing comparatively better electro-optic,......

<正> Ⅰ. INTRODUCTIONSince 1966 a number of successful experiments have been made on the study of Mssbauer effect of M-t......

Chemical delithiated LixCoO2 (x=1, 0.7, 0.66 and 0.57) has been synthesized by using a strong oxidant, NaS2O8 The struct......

The precipitation behaviour of Fe-Cr-Mo and Fe-Cr-W alloys during aging has been ex-perimentally studied.It was found t......

以化学法制出了一种立方状的 Fe_3O_4超细粒子,其生成与化学制备过程中 Na~(+1)的浓度有关.立方状 Fe_3O_4粒子与具有同其大致相同......

A series of poly{2,5-bis[(4-butoxyphenyl)-oxycarbonyl]styrenes} (PBPCS) with low molecular weight distribution was synth......

We address problems in the development of large-scale flotation columns that use short cylinders. As a starting point, w......

Pagodas,an architectural type unique to Buddhist cultures,are widely distributed over the vast land of China,available i......

A direct decarbonation route without obvious morphology damage was developed for large micrometer-scale layered double h......

Twelve triphenylene discogens with unsaturated periphery (abbreviated as C18H6(OC5H11)6-x(OR)x(x=1,2,3), R=-C3H6CH==CH2(......

A new hexanuclear silver(I) compound containing thiosemicarbazones with groups of 1-naphthalene was synthesized and stru......

A series of doped barium hexaferrites BaFe12-2xMnxSnxO19 (x = 0.0-1.0) particles were prepared by the co-precipitation/m......

A multi-step reaction route was developed to synthesize boron nitride(BN) nanoparticles via the reaction between NaN3 an......

Mesostructured iron oxides(MIOs) were nanocasted from a plugged hexagonal templated silica(PHTS) with a Brunauer-Emmett-......

We investigated the structural and magnetic properties of Sm(Co0.7Fe0.1Ni0.12Zr0.04B0.04)7.5 melt spun ribbons. Samples ......

ZnO nanoparticles and porous particles were produced by an ultrasonic spray pyrolysis method using a zinc nitrate precur......

Lead iodide single crystal was grown by physical vapor transport method.Two radiation detectors with different configura......

Rare earth (La,Nd and Tb) oxides with one-dimensional micro/nanostructures were synthesized hydrothermally under facile ......

从NaOH和LiOH的混合碱液中生长了具有不同六方形貌的淡黄色ZnO晶体。采用X射线粉末衍射的方法对晶体的物相进行了分析,利用光学显......

A cellular automaton (CA)-finite element (FE) model and a phase field (PF)-FE model were used to simulate equiaxed dendr......

Chain-like MoS2assemblies consisting of hexagonal MoS2nanoparticles(20-60 nm) have been successfully synthesized in a Tr......

将由Zn(CH3COO)2·2H2O和Na2CO3通过室温研磨反应获得的前驱体在PEG400存在下于240°C热分解获得大量的ZnO六棱锥产物。用X射线衍......

We reported here the simultaneous influence of surface acidity and pore size of Al-substituted hexagonal mesoporous sili......

为晶体，依从(s ij ) 和僵硬(c ij ) ，矩阵在直角的坐标系统(Y i ) 被指定，它不通常用水晶斧子(X i ) 与一致除了立方、斜方晶的水晶系......

By means of first-principles density functional theory(DFT) calculations and molecular dynamics(MD) simulations,a series......

Trivalent europium doped zinc oxide (ZnO:Eu3+) nanocrystals were synthesized via room temperature chemical co-precipitat......

A novel synthesis method for hexagonal(β)-phase NaYF4:Er nano-crystals(NCs)which showed up-conversion(UC)from infrared ......

石墨烯(Graphene)自十几年前诞生以来就一直让科学家们着迷。这种仅仅一个原子厚度的碳元素材料拥有出色的电子特性、强度、超轻重......

Funded by the National Natural Science Foundation of China,a research group led by Prof.Liu Yunqi from Institute of Chem......

A new modulated structure consisting of periodic(1120) stacking faults(SFs) in the α-Fe2O3nanowires(NWs)formed by the t......

Novel hollow Zn x Cd1-x S spheres that are uniform in size are synthesized through the one-step thermal evaporation of a......

A simple and efficient templating method in combination with hot embossing technique is developed for fabricating large-......

Self-assembled nanostructures of lipids and nanoparticles hold great promise for applications in such fields as nanomedi......

Well-crystallized Nd2O3 nanorods were prepared in the aqueous solution containing neodymium nitrate, sodium hydroxide(di......

Rod-shaped mesoporous titanosilicate composites(RMTSs) with controllable aspect ratios(ARs) were fabricated using cetylt......

Using magnetic layered double hydroxide(MLDH) as carrier of fluorescein(FLU),a fluorescent composite of MLDH-FLU was pre......

This paper is aimed to propose a three-dimensional model which would be used for investigation on the mechanical behavio......

The vortex domains, structural properties and ferroelectric polarization in Y1-xInxMn O3 with 0 B x B 0.6have been exten......

Epitaxial growth of SmFeO3/SrRuO3 was achieved on SrTiO3 substrates by the pulsed laser deposition(PLD)method at 973 K u......

The title compound,tetramethylammonium nickel nitrite[(CH_3)_4Nl[Ni(NO_2)_3],has a hexagonal perovskite-type structure w......

The catalysts with SBA-15,MCM-48,SiO2,and MTS-9 as supports were synthesized with 8%WO3,and their catalytic performance ......

The poly(ethylene glycol)(PEG, with Mw 2000)-urea inclusion compound(IC) crystallized at high temperature region showed ......

Sub-miaon-scaled sodium cobalt oxide(NaCo_2O_4) powders are prepared by a solid-state reaction method.Characterization u......

Hexagonal-phase NaYF4:Yb3+,Er3+ upconversion nanoparticles(UCNPs) with a uniform size distribution were synthesized usin......