壳

Use methods such as taking off protein,calcium,colour,deacetylate and purification to abstract and preparing chitin and chitosan from Xuyu's local lobster shell.The technology,equipments,operation are simple and have strong popularization.

用本法从地产盱眙龙虾的虾壳中提取甲壳素和制备壳聚糖工艺设备简单，操作简易，具有较强的推广性；地产盱眙龙虾的虾壳含甲壳素较高，是一种制备壳聚糖不可多得的天然资源，值得开发利用。

The other technical indexes are also accordance with document.conclusion:use methods such as taking off protein,calcium,colour,deacetylate and purification to abstract and preparing chitin and chitosan from xuyu's local lobster shell.the technology,equipments,operation are simple and have strong popularization.the chitin abstracted from xuyu's local lobster shell is rather high,it's a natural resources to prepare chitosan and is worth to exploit and utilize.

用本法从地产盱眙龙虾的虾壳中提取甲壳素和制备壳聚糖工艺设备简单，操作简易，具有较强的推广性；地产盱眙龙虾的虾壳含甲壳素较高，是一种制备壳聚糖不可多得的天然资源，值得开发利用。

We found that under acid condition, selenite radical combined with active hydroxide radical and amino-group of chitooligosaccharides to form chitooligosaccharides - Se compound molecule, the remaining group complex interacted with the negative sodium tripolyphosphate via electrostatical interactation to form nanoparticles with the size about 100nm.

通过透射电镜、粒径分析仪等方法表征，发现壳寡糖-硒纳米颗粒平均粒径为100nm左右，在酸性条件下，亚硒酸根与壳寡糖单元上活性羟基和氨基化合，形成壳寡糖-硒复合分子，剩余的基团与带负电的多聚磷酸钠复凝聚，在4℃下能够稳定保存，25℃以上壳寡糖溶胀而致纳米颗粒发生分解。

According to the neighbor-joining tree on 75 leaf cuticle, architecture, flower and fruit characters, the traditional taxonomic system based only on reproductive characters shows some degree of irrationality. 4. Comparative embryology The developmental process of flower and fruit production was studied for the first time in Castanopsis delavayi and compared with other taxa of Fagaceae.

根据叶结构、叶表皮、果实和壳斗等在内的75个特征所建立的邻接树的分支情况大体上和壳斗科根据花、壳斗特征建立的分类系统基本一致，但是有存在不一致的情况，仅仅根据花、壳斗特征建立的分类系统具有一定的不合理性。

The geometry of these particles was analyzed by both particle size analysis , TEM and FT-IR , and was found to be perfecty spherical , and sized about 50 nm that PS core was well covered by PPy shell . The core-shell latices become unstable when the amount of PPy increased .

就PS-PPy颗粒的结构形态而言，由微粒径分析及TEM分析得知其粒径约50nm左右，制备的核壳颗粒呈均匀的圆球状，并由FT-IR光谱分析证实了PPy壳将PS内核完全包覆，只是当PPy壳的相对量增加时会对核壳乳液的稳定性造成负面影响。

According to the characteristic of silver nanoparticles, their uniform dispersion in reaction media was obtained by surface modification, ultrasonic radiation and the select of emulsion, and then emulsion polymerization system were formed by combination with reactive monomer and initiator. Nano-Ag/Polystyrene core-shell particles were prepared by emulsion polymerization and their microstructure were characterized by TEM, FTIR, XPS, AFM and TG/DTA. The experimental results showed that silver nanoparticles were coated by polymer and the composite particles had typical core/shell structure, and the microlevel combination was realized. Meantime, the form mechanism of nano-Ag/polystyrene core-shell particles was tentatively researched. The conclusion is that the perfect coating was able to obtained by the control of reaction condition.

根据纳米银粒子的特性，借助于表面处理、超声辐照以及乳化剂的选择，使其均匀分散在反应介质中，再与反应单体、引发剂等形成乳液聚合体系；采用乳液聚合方法、包裹聚合方式，制备出纳米银/聚苯乙烯核壳复合粒子，并借助于TEM、FTIR、 XPS、AFM、TG/DTA等分析手段对复合粒子微观结构进行了表征；结果表明：纳米银粒子表面被聚合物层包覆，复合粒子呈明显的核壳结构，实现了微观尺度上的复合；同时，初步探讨了纳米银/聚苯乙烯核壳复合粒子的形成机理，指出：通过控制反应条件，可以使形成纳米银/聚苯乙烯核壳复合粒子的聚合反应方式占主导地位，实现最大限度地包覆。

Rat dermal fibrobalasts and human neofetus dermal fibroblasts were cultured in vitro to evaluate the biocompatibility of the chitosan films.

为考察壳聚糖对皮肤成纤维细胞的相容性，采用流延法制备了纯壳聚糖膜和含甘油的壳聚糖膜，并在所制备的壳聚糖膜上进行了大鼠皮肤成纤维细胞和人胎儿皮肤成纤维细胞的体外培养。

In the buckling question under nonconservation force,a simply example( the dynamic stability question under the uniformly follower forces with small deformation % linear elastic, straight normal.) is considered.The variational equation of braid composite cylindrical shells subjectd to uniformly follower forces is deduced based on the variation principle of quasinatural frequency of elastic nonconservative system self-excited vibration.The calculated formulas of the flutter load and quasinatural frequency of shells are obtained. The program for calculating the flutter load is developed.The numerical example is given and some useful conclusions are obtained.

对非保守力作用下的屈曲问题，具体研究了圆柱壳在比较简单的情况，即小变形、线弹性、直法线假设下在随动力作用下的壳屈曲问题，由拟固有频率变分原理推出了圆柱壳受随从力作用的变分方程，得到了颤振载荷与壳弯曲的固有频率的计算公式，编制了相应的计算机程序，并给出了具体算例，得到了一些有益的结论。

By the solution self-organization, two kinds of organic-inorganic complexes of phosphotungstic acid with chitosan and chitosans degraded were prepared.

本论文提出两种降解制备水溶性壳聚糖的新方法：(1)UV-H_2O_2联合制备水溶性低聚壳聚糖：(2)在壳聚糖-水异相体系中，磷钨酸催化H_2O_2制备水溶性低聚壳聚糖。

Based on the deep research of structure characteristics of the shell-side of the shell-and-tube heat exchanger and laws of fluid flow and heat transfer, the concept of "sideling flow" in the shell-side is presented for the first time, which is relative to the flow states of the cross-flow, the longitudinal-flow and the helical-flow.

在上述壳程流体&斜向流&状态理念的指导下，首次研制开发了新型高效节能管壳式换热器—帘式折流片换热器，改进和发展了换热器壳程的结构形式，实现了壳程流体的斜向流动。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了