球壳

The silica/Polystyrene monocore-shell nanocomposite particles(95nm in diameter) were synthesized through miniemulsion polymerization by using sodium dodecyl sulfate surfactant,hexadecane costabilizer in the presence of silica particles(50nm in diameter) coated with methacryloxytrimethoxysilane.

采用细乳液聚合法，以3-甲基丙烯酰氧基丙基三甲氧基硅烷(KH570)表面改性的直径50nm的氧化硅粒子为核，在乳化剂、助乳化剂、引发剂存在的情况下制备了小粒径、单核核壳结构氧化硅/聚苯乙烯纳米复合微球。

It was found that, driven by the hydrogen bonding interactions, PMAA produced in-situ and HEC self assembled into PMAA/HEC nanoparticles with the insoluble interpolymer complex of PMAA and HEC as the core, and the soluble HEC as the shell.

结果表明：在大分子间氢键作用的驱动下，原位生成的PMAA和HEC自组装形成了以不溶性的PMAA/HEC大分子复合物为核、以可溶性HEC为壳的PMAA/HEC聚合物纳米微球。

Chitosan and pigskin were added into the PLGA conduit of film containing gelatin microsphere (containing bFGF, then this material was planted into rabbit's ischiadic nerve. The experiments indicate that the material has a good biocompatibility, no inflammatory reaction, and no allergic response.

将成功构建的含bFGF明胶微球与PLGA材料加入壳聚糖、粉碎的脱细胞猪皮等改善其机械性能制作成复合导管之后，将此导管植入兔坐骨神经进行相关的观察，初步实验显示此材料在兔坐骨神经部位生物相容性良好，无炎症反应，无过敏反应。

The formation of the composite microspheres is explained by the nucleation of silver on the surface of the latices followed by growth of the silver shell.

复合微球的形成机理可解释为：Ag纳米微晶首先在共聚物表面形成晶核，随后Ag纳米粒子在晶核表面生长并形成不同厚度的Ag壳层。

Composite microspheres composed of monodispersed poly latices with diameter about 260 nm as core and Ag nanocrystals as shell were prepared by an in situ reduction method.

在银氨溶液中利用原位还原的方法制备出共聚物-银核壳微球。

Decreased gray matter density in some brain regions may be the neuropathological substrate of MDD rather than a result.

1。右侧额内侧回和颞极，双侧壳核/苍白球和小脑的灰质密度降低可能是抑郁症发生的神经病理基础，而非抑郁症的后果。

A simple one-step procedure was described for the synthesis of mesoporous monolith and composite sphere, in which hydrolyzation of tetraethyl orthosilicate and polymerization of urea with formaldehyde occurred at the same time.

利用酸性条件下正硅酸乙酯的水解和脲醛树脂的聚合反应同时一步原位进行的方法合成了二氧化硅复合粉体(包括核壳微球结构和网状结构)和块体凝胶材料。

Because the photospheric temperature of carbon stars are less than 3000K and the temperature of rich-dust envelope formed by the mass loss is lower, and therefore most of the energy from carbon stars are radiated between 1 to 60um range, in which the vibrational and ro-vibrational bands of many molecules also lies, the study of infrared spectra in this wavelength range is very important to reveal chemical compositions, dust formation process, the atmospheric structure and evolutionary status of stars.

碳星光球的有效温度不超过3000K，同时较大的质量损失率形成了富碳的尘埃壳层，以致于它的辐射能量主要集中在1—60μm的红外波段上，并且许多分子的转动振动能谱也集中在红外，因此在红外波段的研究对揭示碳星化学成份及其分布、尘埃形成过程、恒星大气结构和演化状态都有十分重要的意义。

Visual carbon stars whose mid-infrared spectra are mainly dominated by photospheric continuum and show large excesses at 60um, represent a transition phase which follows an interruption of mass loss from the oxygen-rich phase and begins a new phase of the mass loss of carbon-rich material. Excesses at 60um in these stars are the emission from the residual of oxygen-rich material.

光学碳星的中红外能量主要来自光球，在60μm处存在超量发射，人们认为其演化阶段处在抛射富氧物质终止和新的富碳拱星壳层形成之间，其60μm超量发射就是富氧物质的残余效应。

Objective To study the humoral immune response induced by polytope DNA vaccine in chitosan-based micro-sphere.

目的 研究多表位DNA壳聚糖微球疫苗的体液免疫应答。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。