制备

On the other hand, studies on application of chitosan to wastewater focus on limited fields such as decolor, removal of metal ions, and so on, most of which were carried out in the 1980s and 1990s.

国内外关于壳聚糖絮凝剂的制备研究较多，但大部分是采用传统的碱液法，成本高，而且耗时；对于恒功率微波法制备壳聚糖的研究相对较少，而对于变功率微波法制备壳聚糖的研究至今还未见有报导。

This specific preparation methods including: parathion of the initial reaction in acid and zinc metal in the common under redox reaction, a product of the reduction of parathion - parathion, with the sodium nitrite in the cold under diazotization reaction, and bovine serum protein tyrosine on the o-hydroxy combination of the adult immune original and immune rabbit polyclonal antibody preparation.

本发明制备方法具体包括：以对硫磷为反应初始物，在酸和金属锌的共同参与下进行氧化还原反应，得对硫磷还原产物对氨基对硫磷，再与亚硝酸钠在低温下进行重氮化反应后，与牛血清蛋白酪氨酸上羟基的邻位结合，制备成人工免疫原，并免疫新西兰大白兔制备多克隆抗体。

The research indicates that:(1) detecting λmax (277nm) can identify Metronidazole Buccal Tablets prepared by Chongqing Medical College;(2) detecting λmax (321nm) and λmin (265nm) can identify Metronidazole Disodium Phosphate for Injection prepared by Chongqing Medical College;(3) detecting tr (6.7min) in HPLC-UV spectrum can identify Ceftriaxone Sodium for Injection prepared by Chongqing Keru Pharmacy Co.;(4) detecting tR (10.2min) 6.7min in HPLC-UV spectrum can identify Clarithromycin Tablets prepared by Harebin Yida Pharmacy Co.;(5) detecting λmax (254nm) can identify Potassium Sodium Dehydroandroan Drographolide Succinate prepared by Hong Kong Yaohen Co..

结果表明：①测定紫外最大吸收波长λ_(max277nm可鉴别重庆医科大学医药研究所制备的甲硝唑口颊片；②测定紫外最大吸收波长λ_(max321nm和最小吸收波长λ_(min265nm可鉴别重庆医科大学医药研究所制备的注射用甲硝唑磷酸二钠；③测定HPLC-UV中的保留时间(t_R6.7min)可鉴别重庆科瑞制药股份有限公司制备的注射用头孢曲松钠；④测定高效液相色谱的保留时间(t_R10.2min)可鉴别哈尔滨伊达制药厂提供的克拉霉素片；⑤测定紫外最大吸收波长(又max254nm)可鉴别香港耀恒公司提供的炎琉宁。

The affections on the yield of DLLA caused by catalyst, temperature and time etc. were studied. By using ethylene glycol as diluent, the distillate temperature of DLLA was lowed and the carbonization phenomenon could be avoided, which caused the yield of DLLA increasing from 36.8% to 51.3%. The molecular weight of PDLLA prepared by this method could reach 184,000. DLLA and PDLLA was characterized and analyzed by DSC, XRD and IR.The key of direct method to synthesize PDLLA is the exclusion of H2O from reaction system.

丙交酯开环聚合制备PDLLA的关键在于中间体D，L-丙交酯的制备，研究了催化剂、反应温度、反应时间等因素对DLLA产率的影响，通过在反应体系中加入稀释剂乙二醇，DLLA的馏出温度明显降低，避免了DLLA在蒸馏过程中产生碳化现象，并使DLLA的平均产率由36.8％提高至51.3％，制备的PDLLA分子量最大值达18.4万。

This invention discloses a preparation method for anti-corrosion rare earth magnet material characterizing that it takes the optimized grain-boundary phase design as the starting point on the basis of a dual alloy method to select Nd base alloy with high crystal forming ability as the assist alloy and reduces the temperature of the press mold blank in a quartz container to room temperature from over grain-boundary phase melting point with the water extraction way to get enough cooling rate and guarantee the non-grain-boundary phase, compared with the material of the same composition prepared by ordinary method, the weightlessness of this invented material reduces over 30% after testing the weightlessness of the material by laying it for 96 hours under 121deg.C, 2 atmosphere and 100% humid environment to show the advanced performance of anti-corrosion.

本发明公开了一种耐腐蚀稀土永磁材料的制备方法，其特征是它在双合金法制备工艺的基础上，以优化晶界相设计为出发点，选取具有较高非晶形成能力的Nd基合金为辅合金，并在烧结回火时将置于耐高温石英容器中的压型坯件，从晶界相熔点以上以水淬冷却的方式降温至室温，以达到足够的冷却速率，确保得到非晶晶界相，根据本发明制得的耐腐蚀稀土永磁材料，通过测量在121℃、2个大气压以及100％湿度环境下放置96小时后材料的失重情况，结果显示本发明得到的材料与常规方法制备的相同成分的稀土永磁材料相比失重减少了30％以上，充分证明其具备了更优越的耐腐蚀性能。可广泛应用于电子、汽车、计算机、电力、机械、能源、环保、国防、医疗器械等领域。

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。

Both theory and experimental results show that decrease of the band width has little effect on the faradic current at the ultramicroelectrodes, however, the non-faradic current is proportional to the area of those electrodes.

开创了用等离子刻蚀法制备纳米金柱电极的方法，电极的最小尖端直径可达30nm，这是目前报道的最小的电极尖端。详细讨论了制备条件对制备电极的影响。

The preparation of the nano-TiO〓 powder mixed with copper ions by hydrthermal method and the preparative condition of the ZnO nano-stick by gaseous phase deposition method were discussed in this chapter.

本部分研究了利用水热法制备掺杂铜离子的纳米TiO〓粉体和利用气相沉积法制备氧化锌纳米棒的制备条件。

This paper is mainly comprised of two components:preparation of models of rats suffering from deficiency of spleen Yang;comparison of the pharmacodynamics impacts of different Lizhong Pills formulations made up by dried ginger or its different components in Lizhong Pills to the different groups of the models.1 Establish the model of deficiency of spleen YANG induced by " cypsum fibrosum and anemarrhenae " with complex factors1.1 ObjectivesWith using heat-clearing and fire-purging drug cypsum fibrosum and anemarrhenae,insteading of the common usage of rhubarb and folium sennae,accompanied with irregular diet and overstrained,the model of deficiency of spleen-YANG is to be established,which is much close to the pathopoiesis theory of " frigidity and chilly damaging yang,irregular diet injuring qi,overstrain impairing the spleen" in TCM.1.2 MethodsModel rats is fully fed every other day,given the molding drug of cypsum fibrosum -anemarrhenae(concentration 4:1) with 3 different frequency,and arranged to swim everyday in 25℃water until exhausted(performing as spitting bubble 3 times continuously or sinking unable to float by itself).

全文共分为脾阳虚模型的制备和干姜及其成分对理中丸药效学影响的比较两大部分。1"石膏-知母"复合法脾阳虚模型的制备1.1目的以清热泻火药石膏-知母代替常用的大黄、番泻叶类苦寒泻下药，并结合饥饱失常、劳倦过度的方法进行造模，以期建立更符合中医"寒凉伤阳、饥饱伤气和劳倦伤脾"致病思路的中医脾阳虚证候模型。1.2方法模型动物隔日足量喂食，每日在25℃水中游泳，直至大鼠连续三次吐泡下沉，或沉入水底，3秒内不能自行浮出水面，并以三种不同给药频率灌胃给予石膏一知母煎液，比较石膏-知母不同给药方法对制备脾阳虚模型的影响。

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。