查询词典 method of difference

Then the waveband was divided into two parts to develop calibration model using partial least square method for soluble solids content to remove the effect of the skin and the results indicated that the measurement results was not be enhanced. However, the difference of calibration results in the wavelength of 650-950nm with the r of 0.949, the RMSEC of 0.292 for intact watermelon and with the r of 0.973 and the RMSEC of 0.214 for skin-peeled watermelon indicated that the influence of skin is not very serious and the intact watermelon spectra also can get satisfied calibration result. 5. Vis/NIR spectroscopy nondestructive detection needs high-energy light source, so differences of diffuse transmittance spectra with different light intensity (600W, 1000W) were detected and effects of light intensity on spectra and calibration results were compared.

针对西瓜果皮较厚的特点，对去皮西瓜与带皮西瓜进行对比试验研究，发现果皮对光谱的影响主要集中在可见光部分(650-750nm)，对可溶性固形物含量采用偏最小二乘法进行分段建模并没有有效消除果皮的影响，对比研究去皮西瓜与完整西瓜光谱在650-950nm范围内的建模结果，完整西瓜二阶微分光谱校正模型相关系数r为0.949，RMSEC为0.292，去皮西瓜校正模型相关系数r为0.973，RMSEC为0.214，果皮对建模结果的影响并不严重，完整西瓜的建模结果可以满足检测要求； 5。

In studies of interaction among pile, platform that above it and surrounding soil, this paper employ the concept of plate element to simulate the loading character of platform, and employ the concept of solid element to simulate the character of pile and soil, using the finite element method after understanding the geometry properties of pile, soil and the platform. Analyzing the loading properties of the three entities above and their deformation, this paper also employ a special element, Penalty Element. The introduction of penalty element of this kind has served to guarantee the join harmony of displacement between solid element and plate element, thereby effectively resolving the join problem between platforms, pile that support it and surrounding soil.Considering significant property difference between pile material and its surrounding soil, there may be much shear stress on their contact interface produced under vertical load, thus causing displacement or fission. Therefore it is necessary to adopt one special constitutive law of this kind of contact interface, which can reflect its feature of loading and deformation thoroughly. On the basis of the deformation feature and constitutive laws of some contact interface obtained by Zhang Dongji and people concerned through some single-shear experiments on contact interface between structure and soil, this paper employ one pile-soil three-dimensional constant thickness contact interface model to simulate the " slide" taken place on the interface between pile and its surrounding soil. With this kind model, this paper has also created one finite element model, which can be applied to perform finite element calculation and analyze the pile-loading feature, and deduced its element stiffness matrix.

在承台-桩-土共同作用中，考虑桩与承台的几何特性，采用有限元方法，用实体单元模拟桩土，用板单元模拟承台，更具体地分析桩和承台的受力特性和变形，而且还采用罚单元—既实体单元与板单元之间连接必须满足变形协调条件，来有效地解决了承台与桩土的连接问题，且在桩土共同作用中，由于桩体结构的材料性能与周围土层性质相差较大，在竖向荷载下有可能在其接触面上产生较大的剪应力从而导致错动或开裂，因此，为了充分反映桩土接触面上的受力及变形特征，应采用一种桩土接触面特有的本构关系，即利用张冬霁等人关于结构与土体接触面单剪试验所得到的接触面变形特征及其本构关系，引入桩-土三维等厚度接触单元来模拟桩与桩侧土之间的&滑移&，在此基础上建立可用于桩基承载性状分析的有限元计算单元模型，并推导出了各单元的刚度矩阵。

The invention aims at solving the problem of generating the self-restriction shrinkage stress caused by the shrinkage deformation difference at various positions in a concrete sample that is not considered by the existing concrete shrinkage stress detecting method.

本发明的目的是为解决现有混凝土收缩应力的测试方法没有考虑到混凝土试件中不同位置处的收缩变形差异而产生自约束收缩应力的问题。

Standard measurement method is to use Levels to provide the level of attention, observation points on the ground to erect the standard of scale, respectively, on the scale reading to read to the projection of the elevation difference between two points.

水准测量法是利用水准仪提供的水平视线，观测竖立在地面两点上的水准标尺，分别读取尺上的读数以推算两点间的高差。

The model is solved using finite difference method. The profiles of water saturation, pore pressure and gas pressure were plotted.

采用有限差分法对所建模型进行了求解，并绘制了含水饱和度、孔隙水压力和孔隙气压力的时空分布曲线。

Based on the diffusive equation of incoherent-feedback random lasers,whose gain is modified by adding a saturation factor,the evolution of the emitted light intensity in two-photon pumping random lasers varying with time is studied by use of finite difference method.

引言从20世纪90年代开始，人们对光在增益无序介质中与介质相互作用而产生的受激辐射现象的研究表现出了极大的兴趣[1—11]。实验上，国内外的学者们在不同的随机介质中观测到了光的放大。

In order to roll round billets with accurate roughing shapes by a three-high roughing mill and stabilize production, a flexible pass design method was used to optimize the traditional conjugate pass through the distortion design of the bottom, side wall and pressure difference of the pass, realizing the application of the conjugate round pass on the three-roll mill.

为轧制料形尺寸准确的圆料、稳定生产，采用变通孔型设计方法对共轭孔型进行优化设计，通过对共轭孔型槽底、侧壁、压力差的变形设计，实现了共轭圆孔型在三辊粗轧机上的应用，轧槽咬钢顺利，成品圆料容易控制，完全满足后续工序的要求，同时减小了轧线的轧制事故，单套轧辊的轧制量可提高60%以上，取得了良好的经济效益。

We calculated resonance spectrum and resonance mode profiles of the DQPC twin and triple-cavity by 3D finite-difference time-domain method.

利用三维有限时域差分法我们可以计算准光子晶体二重以及三重共振腔中的共振场图和模态图。

For outdoor roads network environment, we propose a PBR motion planning method, which can not only constrain the motion of robots with rules to avoid conflicts but also resolve the inevitable ones according to the difference of priorities of robots.

针对室外道路网环境，提出了一种PBR运动规划方法，该方法不仅可以利用规则约束机器人的运动以减少冲突的发生而且可以根据机器人优先权的不同解决那些不能避免的冲突，由于采用的是规则控制，因此该方法具有较高的规划速度。

Exists in view of the existing model to trains the data demand to be high, the rate of false alarm higher question, proposed one kind based on the smallest difference cluster invasion examination method.

针对现有模型中存在的对训练数据要求高、误报率高等问题，提出了一种基于最小差异度聚类的入侵检测方法。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。