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It is not uncommon for physicians to utilize a history of wheezing in conjunction with objective evidence of variabale airflow obstruction and response to a bronchodilator for making a asthma diagnosis.

气喘的诊断主要还是靠典型症状的病史，及客观上出现不同程度的气流阻塞的变化，经由理学检查以及实验室检查结果来判定。

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。

For the sake of solving the problem of great rotary inertia and forged steel rockerarms bad wear-resisting property in the engine of Xia Li cars with modelTJ370Q TJ376Q, we utilize the assembly theory of creative engineeringmethodology to respectively make the aluminum alloy materials and siliconnitride engineering ceramics as base stock of rocker arm and cabochon glut. Inthis way, the goodness of these two kinds of materials are fully strengthened. Forthe new rocker arms, their comprehensive property are enhanced and the cost ofmanufacture is lower than before.

为了解决夏利轿车发动机TJ370Q和TJ376Q中所装配的锻钢镀硬铬气门摇臂所存在的转动惯量大、圆弧面耐磨性差的问题，项目研制中运用创造性方法学中的"组合"原理，有针对性地选用铝合金和氮化硅陶瓷这两种具有不同性能特点的材料分别作为摇臂基体和工作圆弧面镶块，充分发挥两种材料各自不同的性能优势，从而达到提高产品综合性能，降低制造成本的目的。

In order to take full advantage of waste electrolyte co-produced by the magnesium refining from the carnallite and comprehensively utilize the magnesium resources in the salt lakes in Qinghai province,the production process of synthetic carnallite with adding brine cold-crystallization method was developed.

为充分利用光卤石炼镁生产中副产的废电解质和综合利用青海盐湖镁资源，研制开发出兑卤冷结晶法合成光卤石生产工艺。

Bacteria often sequentially utilize coexisting carbohydrates in environment and firstly select the one easiest to metabolization. This phenomenon is known as Carbon catabolite repression.

细菌在多种碳源共存的环境中优先利用一种的现象被称为分解代谢产物阻遏效应。

It utilize the close and open of the microclamp by the shape memory characteristic of this functional marterial.

它是利用形状记忆合金的记忆特性来产生夹持和张开动作。

Article 39 The owner of a realty or chattel is entitled to possess, utilize, seek profits from and

第三十九条所有权人对自己的不动产或者动产，依法享有占有、使用、收益和处分的权利。

This article from design study angle, In comprehensive analysis plant color physical property principle, biology principle and in chromatics principle foundation, Proposed time the botanical garden plant color design four principles extremely utilize the method.

本文从设计学的角度，在全面分析植物色彩的物理性原理、生物性原理和色彩学原理的基础上，提出了园林植物色彩设计时的四个原则极其运用方法。

Most of the enzyme assays utilize spectrophotometry and fluorescence analysis. These methods are complicated as chromogen and fluorescein are needed.

在众多的酶分析方法中，分光光度法及荧光法仍占有相当的比例，这些方法中需利用显色剂或荧光剂而较复杂。

This circuitous defense ring is designed to utilize the tauren's most vicious attack.

这种迂回的防御环的设计利用了牛头人最出其不意的攻击特点。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。