复合

CdSe nanoclusters were overcoated with CdS shell in aqueous medium, which resulted in elimination of deep defects on surface of nanoparticles and thus large increase of the emission intensity of CdSe nanoclusters.(4) Based on PL emission and excitation results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.

有机包覆剂虽然可以控制颗粒的长大，但无法同时消除由Ⅱ族和Ⅵ族两种元素的悬挂键在表面形成的无辐射复合缺陷中心，本文实现了在水溶胶中将宽带隙CdS半导体材料外延生长在CdSe纳米颗粒表面，有效的消除了无辐射复合缺陷中心，使得样品在室温就可以测到带边发光。

Materials and methods: Twenty pairs of test and control restorations were placed in 17 patients. The test group was used packable composite resin(P-60, 3M) and the control group was used universal composite resin (Clearfil AP-X, Kuraray).

材料、步骤和方法：将符合纳入标准的17名患者的20对后牙随机分为两组，A组采用P60复合树脂和Adper Prompt自酸蚀粘接剂修复，B组采用Clearfil AP-X复合树脂和Clearfil Se Bond自酸蚀粘接剂修复。

MATERIALS: Three packable resin-based composites were Ecusphere-Carat, Filtek P60 (P60, 3M EPSE Company, USA), Tetric Ceram HB (HB, Ivoclar Vivadent Company, Liechtenstein) and a conventional composite FiltekZ250 (Z250, 3M EPSE Company, USA).

材料：3种可压型复合树脂为：EcuShere-Carat (简称EC，德国DMG公司)， Filtek P60 (简称P60，美国3M EPSE公司)， Tetric Ceram HB(简称HB，列支敦士登Ivoclar Vivadent公司)；通用型复合树脂为Filtek Z250(简称Z250，美国3M EPSE公司)。

During the cooling to room temperature,β-phase layer with higher Fe content remained, whereas β-phase layer with lower Fe content transformed into α'-Ti martensite. The β-transformed layer and intermetallic compound layer grew parabolically with time at 1223K and 1273K.

在此基础上得出的TA2/A3复合材的工业生产和应用控制在TA2的α-Ti→β-TI转变温度以下进行，从而避免Fe〓Ti，FeTi的形成，保证界面优良性能的结论可指导TA2/A3复合材的工业生产和应用。

The properties of the composite particled were characterized by TEM and FTIR.In addition,the thermal properties of the composite material were investigated by thermogravimetric analysis.

采用透射电子显微镜和红外光谱仪对复合粒子的性质进行了表征，利用热重分析仪器对复合粒子的耐热性能进行了研究。

The optimal conditions for reaction were as follow:the initiator was ammonium persulphate with sodium pyrophosphate syste...

实验确定的最佳反应条件是：引发剂用过硫酸铵-焦磷酸钠氧化还原引发体系，其用量为单体总量的0.4%~0.5%；复合乳化剂选用非离子表面活性剂(TX-10)和混合阴离子表面活性剂复配的复合乳化剂，其最佳用量为单体总量的4.0%~5.0%；反应温度为85~90℃；单体预乳化液滴加时间为3 h左右。

Collisional induced dissociation technique is applied to characterize cucurbituril supramolecule structures complexed with 1,4-diaminobutane, phenylenediamine and lysine.

运用碰撞激发解析技术确定了葫芦脲[6]与1，4-丁二胺，二甲基苯以及赖氨酸分子形成轮轴结构的超分子复合物，即线性分子穿入葫芦脲[6]的空腔内形成的稳定超分子复合物。

For the first time, the pervaporation composite membranes with thickness of 5-30μm phosphatic poly active layer were prepared and utilized for the separation of ethanol-water mixture and in the coupled membrane reactor.

首次以磷酸酯化聚乙烯醇为活性分离层制备了活性层厚度为1-30μm的PPVA复合膜，并用于乙醇-水混合物的分离及复合膜反应器中。

And the composite coatings has many excellent characters in mechanics, photics, electrics, thermodynamics and magnetics. It has an extensive prospect.

复合电沉积是材料制备的新方法，复合镀层在力、光、电、热、磁等方面具有优异性能，因而具有广泛的发展前景。

The influence of the methyl modified SiO 2 gel glass matrices on the thermal and fluorescence properties of photoactive organic species were also studied in t...

结果表明，由于甲基的影响，缩聚反应速度成为以纯 MTES为先驱物制备光学均匀复合固态染料激光介质的关键控制因素，甲基改性复合固态染料激光介质可进行较高温度热处理，经适当温度热处理后，染料的荧光强度有较大提高。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。