实验法
- 与 实验法 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Validating experiment was carried out on IKONOS2 images, and showed that resultant regression coefficients were more acceptable for their physical meanings, and that the discribed method performed comparable with spectral response function or least squares based methods.
通过IKONOS-2全色与多光谱图像的融合实验,结果表明:该方法所求得的回归系数具有明确物理意义,符合实际情况,并且与光谱响应函数法、最小二乘法相比,其融合质量基本保持一致,并且由于该方法不需要先验知识,故其实用性较强。
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With the corresponding flow parameters measured through the experiments and the criterion equation mentioned above,the correlation formula of degassing efficiency of flow of gas/liquid two-phase flow through corrugated multicup isoflux gas anchor is obtained through the regression analysis using the least square method and the Gaussian elimination.The influences of the number of arris and concave depth and angle on degassing efficiency are analyzed.
利用量纲分析方法建立了气液两相流体在瓦棱状多杯等流型气锚中流动的准则方程;根据室内实验测得相应参数和准则方程,利用最小二乘法及高斯消去法进行回归分析,得到气液两相流体在瓦棱状多杯等流型气锚中流动时脱气效率的关联公式,并分析了棱数、凹入深度、角度对脱气效率的影响。
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And the computation of pseudo-random numbers was programmed by multiplying the congruent number with the APDL language used. Taking account of the effects of original errors resulting from manufacture and the different working conditions such as rotating speed and load on the dynamic property of a bearing, the K-S inspection was done to determine the distribution of the data resulting from the virtual test and, consequently, the reliability was calculated with respect to the fatigue failure of bearings.
在此基础上,运用APDL语言实现乘同余数法产生伪随机数的计算程序,综合考虑轴承原始制造误差以及转速、载荷等不同工况对轴承动态性能的影响,对轴承进行多次随机虚拟试验,运用K-S检验法确定所获得的实验数据分布,求取轴承疲劳失效的可靠度。
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Experimental results indicate that block adjustment can reduce the discrepancies for conjugate points between image strips. It is also demonstrated that the mosaicked image is better seamed when tie points are employed in the adjustment.
实验结果显示,加入航带连结点进行光束法区域平差,能有效降低重叠航带间共轭点之相对偏移,并减少镶嵌影像上重叠区影像错开之现象。
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We treat the superconductivity electron as Brownian motion particle in period potential, by using matrix continued fraction method. We solve the corresponding Fokker-Planck equation of electron and obtain the Voltage-Current Characteristics of Josephson Junctions with thermal fluctuations.
我们将超导电子视作在其位相形成的周期势场中作布朗运动,并利用矩阵连分法求解相应的Fokker--Planck方程,得到Josephson结在热涨落存在时的Ⅰ-Ⅴ特性曲线,计算结果与实验相符合。
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Firstly, this paper investigated roundly the basic theory of the ambient vibration method, analyzed systematically the main methods of ambient vibration identification, and discussed their advantages and disadvantages. Then we established the finite element model of structural dynamics and test model and analyzed their mutual relation, improved MUSIC method and correlation function method in the harmonic identification, and gave the subspace method and correlation function method based on continuous model, which is multi-harmonic retrieve technique. And then, this paper also puts forward least-squares method to estimate directly structural physical and modal parameters; this approach replaced the derivative operator in the continuous time model with an equivalent approximation, and estimated the physical parameters of structures by the least-squares method. And then, we discussed the approximation methods of derivative and their convergence. Finally, this paper researched the modal parameters of a frame structure by the simulation and test. The results demonstrated that subspace method, correlation function method and the least-squares method are effective and stable respectively.
全面地研究环境振动识别方法的基本理论,系统地分析环境振动识别方法的主要方法,讨论它们的优点和不足;建立结(来源:6666AB44C论文网www.abclunwen.com)构动力学的有限元模型和试验模型,分析有限元模型与试验模型之间的相互关系;改进谐波识别中的MUSIC识别方法和相关函数识别方法,给出大型结构模态识别的连续型的子空间分解识别方法和相关函数识别方法,这个方法是多元谐波识别方法;提出直接识别结构的物理参数和模态参数的最小二乘方法,这个方法利用导数的近似值代替导数值,并运用最小二乘方法识别结构的物理参数,讨论导数近似值的选择方法,分析算法的收敛性;通过仿真计算和模型实验,研究高层框架结构的模态参数识别,验证子空间分解识别方法、相关函数识别方法和最小二乘识别方法的有效性,算法的稳定性;从理论和试验两个方面分析和研究噪声对识别精度的影响,影响识别精度的因素,以及部分模态成分的模态参数不能够被识别的原因。
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Since continuum hypothesis is still valid for liquid flow in microchannels with hydraulic diameter at about 100 micro-meters, a turbulence convection heat transfer model for single-phase liquid flow in microchannels is established, in which wall surface roughness viscosity is introduced.
分析表明水力直径为100μm左右的微管道内单相液体流动仍满足连续介质假设,引入粗糙度粘性系数,建立了微管道内单相液体湍流对流换热模型,并采用3维有限容积法进行了数值计算,将计算结果与实验结果进行了对比。
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From our experimental results, we find the expanding input features with back propagation learning rule can get fast convergence in training and decrease the mean absolute error between the desired output and the actual output.
实验显示,采用此种扩展型特徵值的倒传递学习法网路可以加速网路的学习效率以及降低实际输出值与期望输出值之间的绝对值误差。
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The experiment was conducted to the improvement of the soil alkali -salinity in songnen grassland, based the seed movement over thenaked alkali-saline soil, which is very important significance on theory and appliance, and at the same time, we also explore a new way to improve naked alkali-saline soil by inserting cornstalk.
本实验以松嫩重度盐碱地为研究对象,通过对裸碱斑表面种子流研究为改良盐碱化草地改良提供了理论和指导,同时开展了扦插玉米秸秆法改良盐碱地的研究。
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Several coterminous bands could be observed by PAGE of natural Eisenin Ⅰ and several coterminous peaks of Eisenin Ⅰ were also detected with MALDI-TOF-MS when the molecular weight of three main peaks are 24, 645, 25, 052 and 25, 281, separately. The amino acid composition of Eisenin Ⅰ(pI. 8) is specilized with high content of acidic amino acids and low content of alkaline amino acids; At the same time, the content of Ser and Thr are quite high and that of Lys, Met, Phe and Trp are quite low. Eisenin Ⅰ is highly homologous with serine proteases. Then, by fibrin plate assay, Eisenin Ⅰ was identified to be a plasmin and also a plasminogen activator, and the fibrinolytic activity was inhibited by PMSF (an inhibitor of serine proteases).
赤子素Ⅰ氨基酸组成特点为高的酸性氨基酸和低的碱性氨基酸含量,且Ser、Thr含量高而Lys、Met、Phe和Trp含量很低;等电聚焦电泳测得其等电点pI.8.N端序列比较结果显示赤子素Ⅰ与丝氨酸蛋白酶类高度同源,纤维蛋白平板法测得赤子素Ⅰ同时具有纤溶酶和纤溶酶激酶活性;通过PMSF对赤子素Ⅰ纤溶酶活性的抑制实验证明,赤子素Ⅰ属于丝氨酸蛋白酶类。
- 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。