分粒

KPF can be dispersed amorphously with the KPF/EC ratio 1∶2 and 1∶3. The release profiles of the drug can be fitted the Higuchi model. By increasing the amount and viscosity of EC, and increasing the particle size of the solid dispersions from 200 600 μm, the release rate can ...

体外释放度试验结果表明，药物体外释药行为均符合Higuchi 方程；缓释效果与EC 量和固体分散体的粒径有主要关系，药物释放速率随EC 用量和粘度增加而减小；固体分散体粒径越小药物体外释放速率越快；在pH 6 。8 介质中的体外释放速率高于在pH1 。2 介质。

Combining ion exchange process and silicon hydrolyze process Silicon dioxide mother nuclide with a specific particle size was prepared from sodium silicate through the dropwise technique , then the large particle size , high concentration and stable silica sol was prepared . The stability of silica sol also can be improved by enwrap .

和"单质硅一步溶解法"相结合的方法，用离子交换法制备晶种，并采用滴加工艺制备一定粒径大小的二氧化硅作为母核，在催化剂和分散剂共同作用下水解单质硅的方法使二氧化硅母核颗粒进一步增长成大粒径的二氧化硅颗粒，并另外还采用水溶性高分子对纳米SiO_2粒子进行"原位表面包覆"提高其稳定性，制备了大粒径，高浓度，稳定的纳米硅溶胶。

It also can be used as alternative antigen of newgeneration vaccine.In this experiment,we screen the major protective antigen hsp65 gene of MAP in order to developnew vaccine especially the DNA vaccine for the prevention of paratuberculosis disease.The hsp65 genewas amplified from MAP C-2 chromosomal DNA by using the PCR technique.We gained a hsp65 gene of 1 626bp.Then PCR product was cloned into pGEM-T vector by T-A clone technique and therecombinant clone was identified by plasmid size,enzyme digestion and PCR identification.The cloneplasmid of pGEM-T- hsp65 was successfully constructed.The nucleotide sequence and deduced aminoacid sequence ofclone gene was analyzed by DNASTAR software.The result indicated that the size ofhsp65 gene consist with M.paratuberculosis K-10 strain in GenBank and the sequential homogeneityreached 99.1%,the amino acid homogeneity reached 99.3%.The preceding analysis indicated that thehsp65 gene was very conservative in M.paratuberculosis.

为了研发预防副结核病的新型疫苗尤其是DNA疫苗及相关蛋白功能，本研究选择了MAP的主要保护性抗原Hsp65蛋白，以副结核分枝杆菌C-2株染色体DNA为模板，以hsp65基因的特异性引物进行PCR扩增，获得了1 626bp的hsp65基因，通过T-A克隆技术，将PCR产物克隆至pGEM-T Vector中，以质粒大小、酶切分析、PCR扩增及序列分析鉴定重组克隆，成功地构建出克隆质粒pGEM-T-hsp65，以DNASTAR软件分析了所克隆基因的核苷酸序列和推导的氨基酸序列，结果表明，所获得的hsp65基因与GenBank中MAPK-10株该基因核苷酸大小完全一致，两者核苷酸序列的同源性为99.1％，氨基酸序列的同源性为99.3％，表明该基因在副结核分枝杆菌中高度保守。

In the second part, we developed a new approach for the preparation of highly dispersed carbon black platinum nanoparticle with different geometric shapes by introducing clay (0 to 33%) as a dispersing agent in 5% Nafion co-solvent suspension without any organic solvents. FE-SEM analysis of CB/clay (100/0, 85/15, 67/33) was achieved CB particles with an average diameter of 40-60 nm. The hydrophilic property of the hybrid material was effectively improved in the presence of the clay was observed in sessile-drop test.

第二部分中我们发现在燃料电池之触媒制备常利用碳黑作为载体，碳黑在水中分散程度不一，而有机分散剂之电阻质较高常导致触媒用量提高增加成本，在本论文中我们利用几何片状结构的黏粒矿物与Nafion溶液做为分散剂巧妙的将碳黑分散，在不同黏土矿物与碳黑之不同比例(clay/CB 0/100， 15/85， 33/67)下进行分散，在SEM及TEM鉴定下证明其分散程度而碳黑粒径约40-60 nm。

Wheat physiological char acte rs show two stages by the dividing line of anthesis.In prophase,it mainly forms tillerings,differentiates the floscules and small heads,forms the base of heads number and grains number.In anaphase,it mainly accumulates effectively dry substance ,makes certain the grains number and grains weight ,so we can confirm the t hree yield factors,that is,heads number,grains number and grain weight.

在小麦生理性状的表现上以扬花期为分水岭分2个阶段，前期主要形成分蘖，分化小花、小穗，决定产量构成的亩穗数和穗粒数；后期表现干物质的有效积累，确定粒数、粒重，从而构成产量的三大因素：亩穗数、穗粒数和粒重。

Machinery blade: Paper blade, the paper knife, the paper single-pole/double-throw, from top to bottom at cutting knives, cutting knife, cut the knife, slice lamb, knives, scissors disc roller, Slitting points of the knife, bearing knives, cutting carved round Knife, knife lap, multi-bladed knife ring, copper foil crop knives, cutting board, knives, razor blades Jianban, rolling blade, cut steel knife, smash the plastic knives, Qieli knives, Qieli hob, closure at the end of knife, Bag of knives, razor blades Chongjian plane, flying scissors films, scraper, Bodao series, Gangdao tungsten film, clipart blade, the blade three holes, Qiebu knife, knife tooth, like cloth Caidao, non-standard blade may be set System.

机械刀片有：切纸刀片，分纸刀，分纸单刀，分切上下刀，切光刀，切管刀，羊肉切片刀，圆盘滚剪刀，纵剪分条刀，轴承刀，切刻圆刀，光刀圈，多刃刀圈，铜箔裁切刀，线路板裁切刀，剪板刀片，轧钢刀片，钢筋剪断刀，塑料粉碎刀，切粒刀，切粒滚刀，底封刀，制袋机刀，冲剪机刀片，飞剪刀片，刮刀，薄刀系列，钨钢刀片，美工刀片，三孔刀片，切布刀，齿形刀，样布裁刀等，非标刀片可定制。

Chromosome number in all counted complete metaphases of Carassius auratus var. Dongtingking is 48. Analysis of chromosome can be divided into four sections according to the position of the centromere.

核型分析结果表明，翘嘴鲌的肾细胞染色体组是由48条染色体组成，染色体组型按着丝粒位置可分为四组，分别是中部着丝粒染色体、亚中部着丝粒染色体、端部着丝粒染色体。

The result showed that branches per plant, pods per branch, pods of main stem, pods per plant, seed weight per plant, seed number per plant and plot yield could be increased with the treatment of 270kg of phosphorus application rate per hectare.

每公顷45万株的密度可提高单株荚数，但百粒重降低。不同因素间互作效应表明，每公顷施270kg磷酸和45万株密度，能增加单株的分枝数、分枝荚数、单株粒重和单株粒数。

The result showed that branches per plant, pods per branch, pods of main stem, pods per plant, seed weight per plant, seed number per plant and plot yield could be increased with the treatment of 270kg of phosphorus application rate per hectare.

结果表明，每公顷施270kg磷酸二铵能有效地增加分枝数、分枝荚数、主茎荚数、单株总荚数、单株粒重、单株粒数和小区产量。

It is pointed out that the liquid bridge formed by extern water between two particles as well as particle and screen plate is the main factor which leadS to the deterioration of screening process.

潮湿细粒煤炭的粘附现象是导致筛分过程恶化的最主要原因，为解决这一问题，本文采用理论分析的方法对筛分作业中潮湿细粒煤的团聚机理进行了研究，指出外在水分在颗粒之间以及颗粒同筛面之间形成的液桥是造成筛分过程恶化的首要因素。

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。