查询词典 experimental design

Experimental design of the circuit - the transistor triggered by a single node of the single-phase half-controlled bridge rectifier circuit, through the step-down, rectifier, output waveform, circuit design including DC motors, Thyristor, single crystal, such as rectifier circuits.

实验设计电路-由单结晶体管触发的单相半控桥式整流电路，通过降压、整流、输出波形，电路设计包括直流电动机，晶闸管，单结晶，整流电路等。

The training data set is created with the help of statistical design of experiments or experimental design method.

训练数据集的帮助是创造统计实验设计或实验设计方法。

We use the Taylor series expansion method to get the second-order approximate expression of the confidence region of the parameters, and then according to the principle of minimizing the volume of the confidence region, this paper carries out experimental design for the regression model, and then fixes the point range in the domain of definition of design variable for the model function so as to select the designing point, which can minimize the volume of the confidence region.

文章首先计算指数族非线性模型的回归参数β在1-α置信水平下的置信域的体积，为了便于计算，需把置信域投影到切空间中去，投影后的置信域是一个椭球体，用Taylor展开方法对此椭球体的体积进行二阶近似，推出原参数置信域的体积的近似表达式，然后对回归模型进行试验设计，根据置信域体积最小准则，在模型函数的设计变量的定义域上确定点列，选取使置信域体积达到最小的设计点。

An orthogonal experimental design method involving three factors and three factor levels is adopted for the mix design of recycled aggregate concrete, and the effect of each factor level on mix proportion of RAC and the difference between each factor levels are analyzed.

研究不同影响因素对再生骨料混凝土强度的影响是再生骨料混凝土研究领域的主要方面之一，对实际工程应用有着重要的意义。

According to the physical properties required for soilless-culture substrates, this paper produces 17 types of nonwoven substrates with noil in cotton mill using needle punching based on experimental scheme of Design- Expert software.

以无土栽培基质所要求的物理性状为依据，采用棉纺厂落棉，根据Design-Expert软件设计的实验方案，利用非织造布针刺技术，生产了17种非织造布基质。

Music SCM procedures and experimental design, including music program design principles.

单片机音乐程序的设计与实验，包含音乐程序的设计原理。

Whole grain adlay and dehulled kernels stored at room temperature ( about 25℃), 15℃ and 5℃ were used as raw materials. Completed random design and factorial experimental design were adopted to analyze the changes of coixenolide content, fatty acid distribution and physicochemical properties ( including acid value and peroxide value ) of the adlay oil extracted from the materials in order to find more suitable storage condition.

摘要本研究探讨薏苡籽实，以带壳状态和脱壳后的糙薏仁粒分别贮存於常温(约25℃)，15℃及 5℃之下，利用 CRD 和复因子试验设计定期取样分析籽实在贮藏六个月期间薏仁油中薏仁酯含量，脂肪酸组成，以及薏仁油理化特性之变化，以期找寻薏苡籽实的较适贮存条件。

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Based on the ETA/VPG and LS-DYNA software platform and "vehicle-barrier-curve-road" integrated system dynamics model, in the research, the orthogonal experimental design method and the dynamic explicit finite element method were applied jointedly. The rear wheel elevation was considered as criterion for evaluation and six cross-sectional shape design variables were created. The application of L25 (5^6) orthogonal table for simulation and the use of SPSS statistical package help the variance analysis of simulation results, and the influence levels of various factors were studied to determine the optimal parameters of concrete barrier.

为此，以NJ型混凝土护栏尺寸参数为参考基础，以防撞等级为SS级的护栏为研究目标，以大型客车总质量为18t、碰撞速度为80km/h、碰撞角度为20°的碰撞条件为研究工况，基于eta/VPG及Ls-dyna软件平台及&汽车－护栏－弯道&一体化车－路系统动力学模型，联合应用正交试验设计方法及动态显式有限元方法，以客车后轮抬高量为考核指标，对控制弯道混凝土护栏截面形状的6个设计变量，应用L25(5^6)正交试验表安排仿真试验，借助SPSS统计软件包，对仿真试验结果进行了方差分析，找出了各因素对结果的影响程度，并据此确定了弯道混凝土护栏的最佳尺寸参数。

The research design was a nonequivalent groups pretest-posttest quasi- experimental design. Fifty-three fourth grade students in two different classes of an elementary school in Hsinchu county of Taiwan participated in this study.

本研究采不等组前后测准实验研究设计，以新竹县一所国小四年级的两个班级学生为研究样本，随机抽取一班为实验组，一班为控制组。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。