查询词典 yellowish-brown

The main object of this research is to investigate synthesis of Cu23Cl Cu and CuO nanoparticles through electrospinning and heat-treated method The research is mainly focused on preparative parameter and the change of heat-treated temperature to form the nanoparticles inlaid in silicon fibers the shape and color change are dicussed First of all to prepare the Polyvinyl butyral and silica dioxide complex nanofiber by electrospinning and then to investigate different heat-treated temperature and reactive time to being an influence on the products The results detected by SEM XRD TEM EDS FTIR combined sol-gel process and electrospinning can prepare Polyvinyl butyral and silica complex nanofiber The experimental result is found when heat-treated temperature is 100~4750C it can produce Cu23Cl nanoparticles; Above 4750C~ 4900C it can produce Cu nanoparticles; Above 450~7000C it can produce CuO nanoparticles And the viscosity is lain between 20~40cp and the sol-gel process time is 3hr it can produce the thinner fibers The average diameter of the fibers are 107 88±21 01nm;Due to the nanoparticles inlaid in the silica fibers the thinner fibers can be inlaid the smaller nanoparticles so this is the result that the experiment is expected To calcine the complex fibers is to produce surface silica fibers contain Cu23Cl Cu and CuO nanoparticles due to surface plasma resonance it make the color of the fibers become yellowish green from light white green turn into the red nuclear finally As the experimental result to utilize sol-gel process combine electrospinning can produce porous silica fibers contain Cu23Cl Cu and CuO nanoparticles

本研究旨在探讨「利用放电纺丝和热处理法来合成Cu23Cl、Cu和CuO奈米粒」之研究，实验著重在制备参数与热处理温度变化对所形成的奈米粒镶嵌在二氧化矽纤维中的形态与颜色变化探讨。首先，利用放电纺丝法制备出聚乙烯醇缩丁醛及二氧化矽之奈米纤维，比较不同的热处理温度与反应时间的改变对产物生成产生影响，进而研究不同热处理温度和时间对生成奈米粒的影响。产物经由SEM、XRD、TEM、EDS和FTIR等仪器分析结果显示，结合溶胶-凝胶法(sol-gel process)和放电纺丝法可产生聚乙烯醇缩丁醛及二氧化矽复合奈米纤维。实验结果发现，若热处理温度在100~4750C下可得到Cu23Cl奈米粒，475~4900C 可得Cu奈米粒，450~7000C以上可得 CuO奈米粒。而黏度介於20~40cp间和溶胶-凝胶时间为3hr时，可产生直径比较细的纤维，纤维直径为107 88±21 01nm；且由於奈米金属颗粒镶嵌在二氧化矽纤维中，直径比较细的纤维，可以得到比较小的奈米金属颗粒，这与实验预期相符。而锻烧此复合物产生多孔的二氧化矽纤维并包含Cu23Cl、Cu和CuO奈米微粒时，由於表面电浆子共震关系，而使纤维颜色由淡白黄绿色变成黄绿色，再变红褐色。由实验结果得知，利用溶胶-凝胶法(sol-gel process)结合放电纺丝法和不同热处理温度，可产生Cu23Cl、Cu和CuO奈米粒镶嵌在二氧化矽纤维。

A yellowish-white fatty solid obtained from cacao seeds and used as an ingredient in cosmetics, tanning oils, chocolate, and soap.Also called cacao butter

可可：一种黄白色脂肪固体，由可可豆种子获得，用作化妆品、制革油、巧克力和肥皂的配料也作 cacao butter

Ore of cadmium; a rare yellowish mineral consisting of cadmium sulphide in crystalline form.

镉矿石；一种稀有的微黄色矿物，由硫化镉构成，呈晶体状。

Canada balsam A yellowish resin with similar optical properties to glass, used as a mounting medium for microscope slides.

加拿大树胶：一种黄色的树脂，和玻璃具有相似的光学特性，被用来作为显微镜载玻片的覆盖介质。

A yellowish, amorphous, elastic material obtained from the milky sap or latex of various tropical plants, especially the rubber tree, and vulcanized, pigmented, finished, and modified into products such as electric insulation, elastic bands and belts, tires, and containers.Also called caoutchouc , India rubber

橡胶：一种浅黄色的弹性非晶体物质，从各种热带植物尤其是橡胶树的乳液或胶乳中提取，然后加以硫化、着色、磨光、加工成如电绝缘材料、弹性带和弹性条、轮胎和容器等产品也作 caoutchouc ， India rubber

The yellowish color of Capella indicates a mid-range surface temperature, much like our sun.

卡佩拉的淡黄色表明她的表面温度属于中等范围，就如我们的太阳。

It has a yellowish appearance and its malleability is dependent on how high the carat is.

它有一个黄色的外观及其可塑性依赖於克拉有多高的。

A soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite.

一种软质的银白色或淡黄色碱金属元素，在空气中变黄，见于天青石和菱锶矿中。

At the end of summer, Chinese chive are often blanched and covered to protect them from the light and conserve the yellowish color of the stems.

在夏季末，将中国香葱经常用隐蔽的方式使之变白，避免受光照，保护茎持淡黄颜色。

Cat's Eye Chrysoberyl is a translucent gem ranging in color from a honey yellow or honey chocolate to yellowish green to apple green.

猫眼金绿玉呈半透明状，颜色从蜜黄色或蜜巧克力色到黄绿色再到苹果绿。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。