查询词典 experimental method
- 与 experimental method 相关的网络例句 [注:此内容来源于网络,仅供参考]
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By comparison of MP and PM method, we can't simply evaluate which kind of method is superior or which kind of method calculates the ET0 value big, and we should consider different geography, the climatic conditions and lysimeter experimental result.
仅通过MP、PM公式的计算比较,不能简单地评定哪种公式最优或哪种公式计算ET0值大,应针对不同地理及气候条件,要经Lysimeter的实验结果才能进行率定比较。
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Oenococcus oeni was used as experimental material to count its number with three methods of colony counting method, nephelometer method and spectrophotometer method respectively.
以酒酒球菌为试验材料,分别用平板计数法、浊度计法、分光光度计法进行计数,所得的细胞数分别与对应的NTU值、OD值建立回归方程,方程分别为y=(0.0913+3.0075x)×107;y=(73.561x-4.8994)×107。
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The experiment data of paramecium from Gause was used to investigate the efficiency of the method. And the twelve nonlinear real examples from "Agricultural Experimental Statistics" written by Mo Huidong were used to compare the difference between results fit by the Excel and the linear transformation method, respectively. The result showed that the Excel fitting method is not only simple and efficient for the parameter estimation but can fit various complex nonlinear equations also.
采用Gause的4组草履虫数据,研究了用Excel的"规划求解"工具进行非线性方程拟合的有效性,并以莫惠栋的《农业试验统计》一书中的12个非线性方程实例,比较了用Excel拟合与用常规线性转换方法拟合的差异,结果表明:用Excel进行非线性方程的拟合不仅简单易行、获得更优的参数估计,而且可以拟合各种复杂的非线性方程。
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By analyzing the experimental result it is concluded that manual neural network method is superior to linear regression method and partial leastsquares method.
实验结果表明,人工神经网络方法优于线形回归法和偏最小二乘方法。
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The method consists of tree steps: enhancement, contour segmentation, and feature selection. In this study, our method is able to enhance the signals from masses and extract the useful contour feature from the segmented regions. The ruler method of fractal dimension computed for each case was used to form a contour feature. These feature measures can be input to a classifier based on sorting. The experimental results show that our scheme can provide useful contour extraction for spiculation structures in mammographic images.
我们的研究目的是在乳房的X光影像中选取肿瘤怀疑的区域,分成三步骤,影像前处理、轮廓分割、特徵选取,找出具有星状物轮廓的肿瘤,我们的方法首先强化肿瘤组织,接著有效分割出肿瘤的轮廓,最后利用规则式的碎形维度计算其轮廓特徵值,接著排序分出肿瘤轮廓类别,实验结果证明我们的方法可有效侦测出星状物肿瘤轮廓及其特徵。
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This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.
本文主要模拟岩石渐进损伤破坏过程,确定岩石三维损伤张量的定义,对损伤张量进行简化计算并得出其工程计算方法,采用等效应力假设得出有效应力的基本表达形式,对有效应力进行对称化,得出节理损伤岩体的三维本构关系,在有限元方程中实现弹塑性和损伤耦合;借鉴弹塑性渐进退化方法的思想,采用有限元的方法模拟岩石损伤渐进破坏过程,用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序,通过模拟已有的实验破坏过程,得出模型的破坏图像和轴向荷载变形曲线,与实验结果基本一致。
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The method does not depend on strict local parameters and precise instruments, while the observational principle is relatively simple. An experimental observation was carried out with a simple telescope with large field of view at Xinglong station of NAOC at the end of 2007. The atmospheric refraction from the zenith distance of 44.8 degree to 87.5 degree is gotten by the differential method, which proves the feasibility of the method tentatively.
该方法不依赖于严格的地方参数和复杂精密的观测仪器,并且观测原理相对简单。2007年底,利用一台简易的大视场望远镜在兴隆观测站进行了试验观测,根据较差方法实测得到真天顶距44.8°至87.5°的大气折射值,初步证明了大气折射较差测量方法的可行性。
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The experimental results show that the SOM method can get the best result for lesion recognition, the recognition rate of pork tissue and liver tissue are 96.1% and 91.7%, respectively. The recognition rate for PCA-LDA method is lower than that of SOM method because the feature of tissue lesion is linear indivisible.An effective clinic scheme is developed for NETE, and some problems are discussed. For example, nonuniform temperature field conduced by nonuniform energy field; tissue database construction; movement of HIFU transducer with ultrasonic transducer; rectification of HIFU parameters.
临床方案做了总体设计,并讨论了在临床应用中需要考虑的一些问题,如因HIFU辐射能量分布不均匀导致的焦域的温度场不均匀的问题,数据库的建立问题,HIFU换能器和超声探头的位移的问题以及HIFU辐射参数的确定问题等。
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Calcium montmorillonite was prepared by purifying LeXi bentonite with wet method two times. After purification, sodium modification of Ca-M was studied. A series of Fe/Cr-pillared montmorillonites were prepared with conventional method using sodium montmorillonite as experimental materials, and synthesis condition of Fe/Cr-PILM was studied and optimized. In order to shorten the preparation cycle of PILM by overleaping the step of sodium modification of Ca-M, the pretreatment technique for Ca-M has been pointed out for the first time. A series of PILMs were prepared with hydrothermal method using pretreated Ca-M as starting materials, which show that pretreatment of Ca-M is feasible.
然后,本文以莱西膨润土为原料,用二次湿法提纯了-2μm的钙基蒙脱石,对其进行了钠化改型研究;以改型后的钠基蒙脱石为原料,新型的铁、铬复合离子为柱化剂,研究并优化了常规离子交换法制备PILM的工艺;为了简化PILM的制备工艺,我们首次提出了蒙脱石的预处理工艺,希望通过预处理后可以省去蒙脱石的钠化工艺,以Ca-M为原料直接合成PILM。
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And has brilliant prospect due to its simple structure, good economy and energy saving performance.Based on the full scale passive solar experimental building in DUT, in which the researcher carried experiment as the main method and the CFD simulation as the minor method, the research focuses on passive ventilation formed by the Trombe wall. This paper analyzed the indoor thermo and humidity performance of passive solar building with Trombe wall, and the different ventilation patterns in different seasons, revealing the role of passive ventilation in improving indoor environment. Also the paper researched the characteristics of passive ventilation on air flow and heat transfer mechanicsms, and put forward the best control and adjusting method. Meanwhile the paper gained an empiric formula in use of calculating the natural convection heat transfer and found the key factor of influing the indoor environment.
本研究以被动式采暖降温技术为依托,采用实验和CFD数值模拟的研究方法,重点研究了新型被动式太阳房在不同气候条件下室内热湿环境的动态变化规律,分析不同季节下被动式太阳房内不同的被动式通风模式以及不同被动式通风模式在改进室内热湿环境方面的作用:揭示了特定被动式通风流动和换热特性、控制与预测方法;得到了计算被动式通风对流换热量的经验公式以及影响室内热湿环境的关键因素;了解了含有特朗贝墙体被动式太阳房的自身优势和仍待改进的方面;在实体大被动式太阳房实验技术方面积累了一定的经验。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。