和...不同

The relations of main characteristic with average velocity have been presented.

其次，本文对国内常见的上送风和侧送风方式，在等温送风不同风量的情况下，实测了房间工作区内不同高度上的气流特征，给出了不同情况下平均风速与主要特征参数的回归关系式，分析了不同送风方式和不同风量时工作区内气流特征的特点。

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。

There are 2 alleles at a marker locus and they are codominant. We assumed that the sires used were heterozygous at all marker loci with known linkage phases and were mated to females which are randomly sampled from a population being in HardyWeinberg equilibrium.For further understanding of the values of treating QTL effect as random effect and the importance of estimating the variance component of QTL, we estimated the additive QTL effect under several factors combinations assuming that the QTL vanance component to be known.

为了进一步明确将QTL效应作为随机效应处理，并估计其方差组分的重要意义，本文在方差组分真值给定的前提下，采用随机QTL效应模型和单标记及侧翼标记信息，研究了不同试验设计、不同群体结构、不同QTL等位基因类型、不同遗传力和不同QTL方差贡献等因素组合下，TM-BLUP种畜遗传评定的效果。

A series of double metal cyanide complex catalysts were prepared in two different methods by using β-cyclodextrin, PEG-1000 or Tween-60 as an additional complex ligand respectively, and the effects of different kinds of additives and preparation methods on the appearance, particle diameters, crystal constitution and activity of DMC catalysts were also studied.

分别以PEG-1000、β-环糊精和吐温-60等为助络合剂，采用不同工艺方法制备了具有不同结构的双金属氰化物络合物催化剂，研究了不同助络合剂和不同制备方法对DMC催化剂的形貌、粒径、晶型结构和催化活性的影响。

And this article divides the farmers into three grades in the point of qualitative and quantitative views, and according the principle of econometrician, using the way of Oaxaca analysis, choosing and analyzing the controllable variables in the maize process, in order to find the main ingredients which forming the difference about the behaviors of maize producers based on the different maize grossing zones.

本文通过对南北三省农户玉米生产的投入和产出情况进行实地调查，首先比较分析了不同收入等级农户、不同地区农户和不同土地等级玉米生产的成本和收益情况；然后从定性和定量的角度将农户分为三个等级，再从农户等级和不同玉米种植区的角度出发，根据计量经济原理，运用OAXACA分解分析方法，选择农户玉米生产中的可控制变量对其进行分析，以找出形成农户玉米生产行为差异的主要影响因素。

Because of the cutide and the cutinication of the cell wall in epidermis, the phellemmication of the cell in phellogen of periderm, the epidermis and the periderm have the protective function of preventing the moisture from escaping and the injurous insects out of it .

不同植物及同一植础，各组织细胞的细胞壁在与功能相适应的过程中，物不同部位和不同发育时期的细胞其细胞壁具有不其结构和化学成分均发生特化，构成植物组织最为同的结构和成分，从而适应各种不同的生理功能。

In order to search after appropriate nitrogen application dosage and proportion of phosphorus and potassium in the fertilizer composition, provide with a reasonable economic principle for scientific fertilization and guidance schemes for the production of quality sun-cured tobacco, an orthogonal design was used with small plot trials in the suitable growing areas to compare the effects on growth and development, yield, output value, and smoking quality of sun-cured tobacco, the results showed that the influences occurred in varying degrees while less or ruleless effects displaying on appearance quality and botanic characters respectively.

为研究和探索红土晒烟适宜的施氮量和氮磷钾比例，为生产优质红土晒烟提供经济合理的科学施肥依据和指导方案，运用正交设计，在红土晒烟适宜种植区进行重复小区比较试验，研究不同施氮量和不同氮磷钾比例对红土晒烟生长发育情况、产量、产值和内在品质的影响，结果表明，不同施氮量和氮磷钾比例对红土晒烟的产量、产值、以及内在品质存在不同程度的影响，而对烟丝外观质量的影响较小，对植物学性状的影响没有规律。

It is the macro effect of accumulative micro fracture in all period of time that spallation failure is induced by reflection of stress wave emerges.

研究结果表明：应力波延续时间和应力幅值对岩石的层裂过程影响较大，不同形状的应力波实际上是在相同时段内应力波具有不同的应力幅值和不同的应力加载速率，不同形状的应力波对介质的作用结果是这些因素同时作用的综合反映；应力波反射诱发层裂过程的发生，是各个时刻不同加载条件下微破裂累积的宏观体现。

Based on researchful results of two former students, we take the influences of thermochemistry reaction, mutual disturb and unsymmetrical instance into account. Secondly, the paper simulates the transient thermal response of projectile according to the simulation software, and discuss the ablation regulation when the projectile is in different initial velocity, in different shape, in different angle of attack condition and in different material condition. Thirdly, the effect on the aerodynamic characteristic and the outer ballistic characteristic after the ablation of hypersonic projectile has been analyzed.

在前面两位师兄研究成果的基础上，研究了超高速弹箭组合体在考虑热化学反应、存在攻角影响下的的气动加烧蚀数学模型；然后对不同条件下的烧蚀过程进行计算，分析和总结出在不同外形和不同材料条件下弹体和弹翼的烧蚀规律；紧接着分析了在不同的烧蚀情况下，它对飞行中弹箭的气动力和外弹道特性的影响，从而为今后的超高速弹箭设计提供指导和帮助。

The paper is a result of investigation and research of the regular costumes worn by ethnic groups in northern Thailand with the focus on the dress of the Akha people.

在泰国北部山地民族中，不同的民族或者同一民族在不同的历史时期和不同地域文化下呈现出差异性，其民族服饰文化方面具有各自不同的文化内涵和外延，集中体现在服饰视觉语言的多样性和审美文化的差异性上。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。