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On the basis of the ligamental reticulated carbon foam by Klett J W in 2000 and hollow microsphere carbon foam by Bruneton E in 2002, a hollow microsphere/ reticulated composite carbon foam was prepared by microstructural optimization, carbonization and graphitization respectively.

在Klett J W等人于2000年制备的韧带网络型碳泡沫和Bruneten E等人在2002年制备了一种空心微球碳泡沫材料结构的基础上,分别经过微观结构优化、碳化、石墨化处理,制备出了一种空心微球/网络复合型碳泡沫材料。

No entire nitrendipine crystals were observed visually in SEM photos. The results of X-ray diffraction and differential scanning calorimetry analysis indicated that the crystalline form of nitrendipine was highly dispersed in microspheres, so as amorphous state. The drug release rate of microspheres could be controlled with adjusting the ratio of solid dispersion carriers and retarding agents formulated. The agitation speed and temperature of the preparation process have distinct effect on micromeritic properties of microspheres. The release profiles of the microspheres were mainly affected by the stirring rate of paddle, the concentration of SDS and pH of dissolution medium. Cooling speed and time, however, have no evident influence on the drug release rate of the microspheres. The dissolution data showed that the mechanism of drug release from microsphers was mainly diffusion-controlled. The incorporation efficiencies of 3 batches sample were exceed 96. 8%, which implied that the current method was suitable for design sustained-release dosage form for poorly water-soluble drug.

在扫描电子显微镜下观察,在微球内外未发现尼群地平的完整结晶,X-射线粉末衍射和差示扫描量热试验结果也显示,尼群地平已经被高度分散在微球中;微球的释药速度可通过调整处方中固体分散体载体和阻滞剂的比例控制;制备温度和搅拌速度对微球的质量影响较大;溶出仪的搅拌速度,释放介质的浓度和pH对微球的释放有较大的影响;制备过程中的冷却速度和冷却时间对微球的释放行为影响不很明显;方程拟合的结果表明缓释微球的释药行为符合扩散机制;测定三批微球样品的包封率均在96.8%以上,表明该法适合于制备难溶性药物的缓释微球。

In the CMKGM preparation section,with the indicators of DS andη, the optimum laboratory conditions preparation of a certain molecular weight of the high DS of CMKGM: reaction time (5~6) h, the theory of the degree of substitution (2~3), the molar ratio of monochloroacetic acid to Sodium hydroxide (2:1~3:1),the reaction temperature (55~65)℃, liquid ratio (10:1~12:1)mL/g, containing enthanol (50~70)%.

CM(来源:5e60ABC论文网www.abclunwen.com)KGM制备工艺研究中,以取代度、表观粘度为指标,建立了制备一定摩尔质量的高DS的CMKGM的实验室制备条件:反应时间(5~6)h、理论取代度(2~3)、氢氧化钠与氯乙酸摩尔比(2:1~3:1)、反应温度(55~65)℃、液料比(10:1~12:1)mL/g、乙醇体积分数(50~70)%。

The DielsAlder reaction of myrcene and acrolein over ZnCl2/NaY prepared by solidstate interaction under microwave irradiation, conventional heating physical mixture, and over ZnNaY prepared by ion exchange in solution was studied.

比较了微波固相法、普通加热法和简单混合法制备的ZnCl2/NaY及溶液离子交换法制备的ZnNaY在月桂烯与丙烯醛DielsAlder反应中的催化性能,发现微波固相法制备的催化剂表现出最高的环加成选择性和区域选择性。

Holographic lithography method is one of them, which means that fabrication of 1D, 2D and 3D periodical microstructures by interference of two beams, three or four noncoplanar beams, multiple mutually coherent laser beams are made to intersect and interfere, producing period patterns of light and dark areas repeated on a scale proportional to the wavelength of the beams used.

全息光子晶体的实验制备及缺陷引入在光子晶体的实验制备中我们主要研究两个方面,一是激光全息干涉法一步成型制备大规模无缺陷的光子晶体,二是用单光子和双光子聚合相结合的办法,在光子晶体中引入缺陷。

A modified γ-Al〓O〓 was prepared by a special precipitation method with aluminum nitrate solution containing a certain amounts of orthosilicic acid and ammonia aqueous solution. Compared with commercial γ-Al〓O〓, the modified γ-Al〓O〓 was an effecient catalyst for dehydration of tetrahydrofurfuryl alcohol to dihydropyran. The results revealed that the strong acid sites on the surface of the catalyst may play a crucial role in this reaction.

并以硝酸铝和氨水为原料,用沉淀法制备出一种高比表面和拥有较多强酸中心的γ-Al〓O〓,它在四氢糠醇开环脱水制备二氢吡喃的反应中有优良的催化活性,通过比较此γ-Al〓O〓和普通商业γ-Al〓O〓的Py-TPD图,发现强酸中心在制备二氢吡喃的反应中可能具有关键的作用。

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。

Reflecting layer is composed of TiO2 large nano-particles with mean grain size of 250nm or 150nm prepared using organic alkali tetramethylammonium hydroxide as peptizer. Nano-crystalline TiO2 porous thin film composed of small nanocrystalline (10~20nm) was used as a substrate layer to absorb large amount of dye molecules.

用有机碱四甲基氢氧化铵做胶化剂制备的两种大粒径纳晶TiO2(粒径为250nm和150nm),用它们分别制备薄膜做为反射层;用小粒径纳晶TiO2(10~20nm)来制备的纳晶多孔薄膜为底层膜,用于吸收大量的染料。

The aim of this thesis is to prepare rutile TiO2 nanorods under the hydrothermal condition and to investigate the correlation between the preparation parameters and the photocatalytic activity of as-prepared TiO2 samples. The initial sols for TiO2 were prepared by the hydrolysis and condensation of Ti precursor, titanium n-butoxide 〔Ti4, TNB〕 in DI-water with hydrogen chloride as a peptizer.

中文摘要本研究的主要目的是制备以水热法制备金红石相二氧化钛奈米棒并探讨其制备条件与光催化活性的相关性,以四丁基氧化钛为前驱物,在盐酸的催化下,经由水热处理来合成金红石相的二氧化钛奈米粒,并藉由XRD鉴定其结晶相,TEM来观察其外观形貌及其颗粒大小,氮气吸附法来分析其比表面积。

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。

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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。

This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.

这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。