实验设计

The research consists of three parts: First is to prepare the five high-purity synthetic evaporite minerals powders, including gypsum, calcite, chalcanthite, nitratine and hydromagnesite, and to verify their phases and purities by XRD. Second is to conduct a series of thermal decomposition experiments of the powders by TGA at various heating rates and isothermal condition.

实验设计上可分为三部分，首先准备符合石膏、方解石、胆矾、钠硝石与水菱镁矿等五种矿物成分之试药等级粉体，再以XRD确认其矿物相是否正确；第二部分以热重分析仪进行等升温与等温条件热分解实验；最后以三种动力学方法分析拟合热重分析所得到的反应数据。

Objective:Currently most researches concerning electret transdermal patches are performed by one-factor experimental design with relatively poor efficiency.

目的：目前驻极体透皮贴剂的体外实验多采用比较低效的单因素实验设计方法。

The XRD results were just the same as previous researches, which indicated that the main phase of the recovered samples is not perovskite structure, but single-chain structure enstatite. Especially, no evidence of the oxides SiO_2 and Mg_(0.92, Fe_(0.08) O in recovered samples was observed.

在78～115 GPa冲击压力(估算温度为3000～5000K)范围内进行了两发原始样品为Mg_(0.92，Fe_(0.08)SiO_3顽火辉石+铁的冲击压缩回收实验，这是国际上首次采用冲击波回收技术来研究铁与硅酸盐的反应，是本文的又一创新实验设计。

The experiment product is food service for the similar proportion product and service. A 3*2 factorial design experiment was employed in this study.

以实验设计的方式，采用的自变数为促销方式的类别，分别为价格导向类、非价格导向类与未促销类，未促销类为实验对照组，以此比较价格导向类的促销方式是否会使消费者产生负面的知觉品质与知觉价值。

In this thesis, the author attempts to attest the proposed flews in the previous researches through three experiments.

本研究试图通过三个实验，来验证过去的实验设计中存在的缺陷。

Based on the grass morphological and physiological characteristics and the sequence similarity of ribosomal DNA-ITS,the strain was identified as Mucor recurvus sp..

研究表明，该菌株培养的最适糖蜜浓度为10°BX，通过单因素实验和正交实验设计，确定了优化培养条件：最适温度28℃、摇床转速为160r/min、pH值为6.0和培养天数为5d。

On the basis of the orthogonal experiment, nine groups of structure parameters of variable cross_section tube s are issued.

根据正交实验设计提出了 9种变截面管强化传热管的结构尺寸，并由实验结果回归得到了变截面管的传热与阻力关联式。

On the basis of the orthogonal experiment, this paper has analyzed the influencing factors of the adsorption of clay via laboratory batch tests, which provides a base for the investigations on cation adsorption of clay.

在正交实验设计的基础上，通过大量的室内实验，对粘土吸附性的影响因素加以分析，为金属离子影响下的粘土土工性状研究奠定基础。

Two experimental classes are divided into experimental teaching group and controlled teaching group, with their pre-examination, after-examination, and postponed spatial ability examination results of the two groups as quantified analysis, recording the process of teaching as data for teaching activity analysis.

本研究采「实验研究法」之「不等组准实验设计」，以研究者任教之学校为样本，丛集取样二个教学实验班级进行实验组与控制组教学，搜集二组学生在空间能力测验的前测、后测及延后测成绩做为量化分析之依据；记录教学历程做为分析教学活动内涵之资料。

Thirdly, on the issue of human-machine interface design in scientific discovery learning, this thesis summarizes existed studies and point out the design of interface should emphasize five aspects: showing domain knowledge, formulating hypothesises, designing experiments, processing data and self—adjusting.

接着，在科学发现学习环境的界面设计上，本文总结了现有的研究成果，指出科学发现学习环境的界面设计应将重点放在知识呈现、假设形成、实验设计、数据处理和自我监控五个方面。

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。。。。