查询词典 experimental probability

Seventy-seven male big rats of four to five months old with the weight of two hundred and eighty to three hundred and twenty grams were divided randomly into contrast group of zero week,contrast group of three weeks,contrast group of seven weeks,contrast group of eleven weeks,experimental group of three weeks,experimental group of seven weeks and experimental group of eleven w...

选用280～320g 4～5月龄wistar雄性大鼠44只，随机分为0周空白对照组11只，3周实验组11只，7周实验组11只，11周实验组11只，0周空白组于0周处死，解剖取大鼠股骨，以生理盐水浸湿的纱布包裹，置-20℃冰箱内保存备用。

Plackett-Burman experimental design and the uniform experimental design were used to select the main factors of the ball milling pretreatment of corn stalk. The experimental results were analyzed by data processing software and well-fitted regression equation was established. Effects of ball milling parameters, such as raw material diameter, speed, ratio of raw materials, grinding media and alternating time, on the enzymolysis were analyzed. The optimal parameters of ball milling pretreatment of the corn stalk were as follows: particle size of raw material of 0.5 mm, speed of 340 r/min, the raw material content of 3.4 g, the number of ball of 15 (Ф= 10.0 mm), alternating running time of 5 min.

研究了玉米秸秆水解过程中球磨预处理工艺的优化，采用Plackett- Burman 试验设计和均匀试验设计法，用数据处理软件对试验结果进行分析，筛选出了球磨预处理过程中的主要影响因素，得到了具有较好拟合度的回归方程；通过分析原料粒径，转速，原料填装量，研磨介质，交替时间等球磨条件对酶解效率的影响，得出行星式球磨机粉碎玉米秸秆的最佳工艺参数为：原料粒径0.5 mm，转速340 r/min，原料填装量3.4 g，装球量15个（Ф=10.0 mm），交替运行时间5 min。

Methods The models of tooth extraction wound were established by extracting the left and right maxillary first molares in 60 Wistar rats, and randomly divided into two groups. Right sides of teeth extraction socket were used as experimental groups,experimental group 1 was filled with 30% aloe mastic , experimental group 2 was filled with 50% aloe mastic.

60只Wistar大鼠拔除左右上颌第一磨牙，建立拔牙创动物模型，随机分为实验1和2组（30%和50%芦荟膏组，每组30只），右侧拔牙创内放入芦荟膏作为实验组，左侧常规处理作为对照组。

Experiments were carried out to verify the static model. Experimental results show that the experimental curve matched well with the simulated curve, and there was certain error between them (maximal static error is 0.035 rad). The error cause was analyzed. Then the experiments were carried out to measure the dynamic performances of the side-sway joint. Experimental results show that the step response time of the joint was about 2 s steady value's tolerance zone ?

完成了侧摆关节静态特性试验，试验结果与仿真曲线基本吻合，验证了静态模型的正确性，但存在一定误差（最大静态误差为0.035 rad），分析了误差原因；对侧摆关节进行了动态特性试验，试验结果表明对于不同的期望值角度阶跃信号，侧摆关节开环阶跃响应时间大约是2 s

In summary, various key experimental conditions in electron acoustic imaging of ferroelectric domains were systematically studied. The optimum experimental conditions to obtain EAI of domains with good quality and the factors important to image analysis have been presented. The piezoelectric vibrator model and calculation of motion equation are helpful for explaining the imaging mechanism and related experimental phenomena. The sample holder with variable electric field was designed. The domain movement of BaTiO〓 ceramics and crystal under lateral and longitudinal applied electric field and domain movement of PMN-PT crystal under longitudinal poling electric field were observed. The application of SEAM on revealing of ferroelastic domains, imaging of residual stress distribution in ceramics coatings and around the pores on the surface of ferroelectric ceramic composite have been reported respectively. All these works enriched the study of electron acoustic imaging and extended the application of SEAM in the characterization of materials.

综上所述，本文系统地研究了各项关键实验条件对电畴电声成像的影响，指出了获得最佳畴结构电声像的条件和成像分析中应当考虑的各种影响因素；提出了解释电畴电声成像的压电振子模型，在此基础上推导并求解了压电振子运动方程，并对一些实验现象作出了解释；成功地设计了可变电场的样品台，观察了BaTiO〓陶瓷和晶体在横向电场作用下的畴运动，PMN-PT晶体在纵向极化电场作用下的畴运动；探索了电声显微镜在铁弹畴成像，陶瓷涂层应力观察，陶瓷自然表面气孔周围应力成像的应用，这些研究，丰富了电声成像的学术内涵，拓展了电声显微镜的应用领域。

Independent-samples t-test is used to compare means of the experimental and control groups.The statistical results reveal that collocational competence with the sub-technical terms of the experimental group is significantly higher than that of the control group. However, the CBSTT model's effect on the simple nominal phrase collocational competence is more significant than the effect on the complex nominal phrase collocational competence. From the perspective of production competence, the overall results of the experimental groups are significantly higher than the overall results of the control group. The complex nominal phrase production competence is not significantly developed at the beginning of the experiment. With the progress of the experiment, the differences from the two groups become salient.

在短语搭配能力方面，实验组学生的总成绩明显高于对照组学生，其中实验组简单短语的搭配组合能力与对照组学生存在显著差异，但复杂短语的组合能力上两组差异不大；在产出能力方面，实验组学生的总成绩也明显高于对照组学生，实验组简单短语的产出能力与对照组学生存在显著差异，复杂短语的产出能力开始没有显著差异，随着实验的进行差异越来越显著；在通过词汇重复手段以构成语篇衔接方面，实验组学生的成绩和对照组的学生无显著差异。

Based on the analysis of prosthodontics experimental courses,we provide methods for the reform of the teaching of experiment course from experimental equipment,experimental methods and content.

基于对口腔修复学实验课教学现状的分析，我们从实验设备、实验方法、实验内容等方面对口腔修复实验课教学进行了改革。

In the course of educational experiment on the synthesis of non-ionic surfactant, in order to reduce the depletion on ethylene oxide and save experimental cost, an educational experimental device with the function of enduring highpressure and little reaction mass was constructed by refitting a 250mL high-pressure reactor. In order to verify the function of the experimental device, lauryl alcohol polyoxyethylene ether was synthesized by it.

在非离子表面活性剂的合成教学实验中，为了减少环氧乙烷的消耗，节约实验成本，对250mL的高压反应釜进行了改造，筹建了一套耐高压反应物料量少的教学实验装置，并用此装置合成了十二醇聚氧乙烯醚，以验证此装置的性能。

Using the Bayes's theory about a estimate,the article researches the problem of probability change points,then gives a concrete priori distribution and posterior distribution,as well as gives a judge to the existence of probability change points.

利用Bayes估计理论，研究概率变点问题，给出变点的一个具体先验分布和后验分布，并对变点的存在性作出判断。

Gaussian mixture model calculated a priori probability and the probability of post-mortem procedures, using a large matrix computation, g...

计算高斯混合模型先验概率和后验概率的程序，采用大矩阵运算，大大提高了运行速度。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？