查询词典 parameters

Firstly, some difficult problems required to be solved,such as the land surface parameters′ calculation and observation over inhomogeneous land surface and development similarity theory which can be applicable to the inhomogeneous land surface. Secondly, studies of the bulk transfer coefficients over humid regions of China must be strengthened. Thirdly, whether or not understanding the landatmosphere interaction process over inhomogeneous and complicated land surface in its entirety, the land surface parameters′ expandedness form local to regional scope is a critical and difficult problem.

在此基础上，探讨了该领域研究中存在的几点科学问题：①需要解决非均匀下垫面地表参数的计算和观测以及发展适用于非均匀下垫面的相似性理论等难题；②对我国湿润地区地表总体输送系数的研究需要加强；③能否对非均匀复杂下垫面陆气相互作用过程进行全面的认识，地表参数由&点&到&面&的推广是关键也是难题。

The batch seeded isothermal desupersaturation experiments of SPM in aqueous solution were carried out and the overall crystal growth kinetics parameters were determined by the nonlinear optimization techniques. Assuming that the volume diffusion rate at growth is equal to the mass transfer rate at dissolution under the same conditions, the two-step crystal growth rate parameters can be determined. At the fow supersaturation, the surface integration rate is proportional to relative surface supersaturation.

通过测量螺旋霉素均相成核动力学，获得了表面能的值，估算出表面熵因子的值在1.41～1.56之间，从而可以推断出螺旋霉素晶体生长的表面反应速率同表面相对过饱和度成线性关系，这种生长机理同第四章得到的结果是相吻合的；利用估算的表面熵因子的值，把螺旋霉素晶体看作为简单的立方科瑟尔晶体，根据能量最低原理，对螺旋霉素的晶体生长进行了模拟。

Firstly, the structure of ANFIS is decided by subtractive clustering; then the premise parameters and consequent parameters of ANFIS are trained by hybrid learning algorithm; finally, related factors that impact futural daily electricity price are input into the trained ANFIS to forecast electricity price.

首先采用减法聚类方法确定自适应模糊神经网络的结构，然后利用混合学习算法训练该网络的前件参数和结论参数，最后将影响未来日电价的相关因素输入到训练好的自适应模糊神经网络中进行电价预测。

BACKGROUND: Saphenous vein grafts and pedicled right gastroepiploic artery grafts are routinely used to revascularize the right coronary artery. Little is known about the predictive value of objective pre-operative angiographic parameters on the 6-month graft patency and on the interest of these parameters to select the optimal graft material in individual cases.

背景：大隐静脉（SVG和胃网膜动脉（RGEA常规用于右冠状动脉血运重建，但观察术前冠脉造影参数对6个月未闭冠脉移植及利用这些参数在不同个体选择合适移植物尚很少研究。

The joint inversion of some geodynamical parameters and numerical simulating the crustal stress field is presented in this paper. The four nodes quadratic finite element in Chinese area is constructed and the "split node" technique is employed for introducing the fault parameters into the finite element computation.

讨论了利用地应力主方向和GPS资料联合反演与之相关的地球动力学参数及数值模拟地壳应力场的方法，建立了中国及其邻区的四节点有限元模型，解决了有限元数值解算中节点位移不连续的问题。

The model parameters include boundary condition, initial condition, hydrological and geomorphological parameters and the other parameter for controlling the model simulation process.

在不规则无结构网格中，在洪水模拟计算时要用到的网格与边的关系、网格与结点的关系及边与结点的关系必须建立；④模型参数的确定。

At present, all the P-Y curve methods recommended by the referring code demand using geotechnic parameters C_u (three-axle undrained shear strength) and ε_50(the strain value that is equal to a half of the difference stress in the undrained triaxial compressing test). Moreover, we must do the complex and expensive triaxial geotechnic experiment to get those two geotechnic parameters, so they restrain the P-Y curve method from using comprehensively.

但目前国内外有关规范推荐的P-Y曲线均需用到土工参数C_u和ε_(50)(三轴不排水压缩试验中最大主应力差一半时的应变值)，而获得这两个参数需要进行比较复杂且费用较高的土工三轴试验，限制了P-Y曲线法的广泛应用。

It is helpful to the quantitative analysis of grinding parameters and more reasonable selection of grooving parameters of grinding wheel in practice.

这为定量地分析包括断续磨削温度在内的各参数对磨削温度的影响提供了依据，并为生产实践中正确设计诸如开槽砂轮的沟槽参数及合理选择磨削用量等提供了一定的参考依据。

Computer simulation result proves that A. C. parameters measurement of static signals using Harr wavelet transform could get the accurate result by the ideal sampling situation, i. e. the synchronous error is zero. Compare with synchronous and quasi-synchronous sampling algorithm, A. C. parameters measurement of transient signals using Harr wavelet transform could get more accurate result.

对谐波相位测量方法进行了误差分析，通过仿真证明，在稳态信号情况下，如果采样过程不存在同步偏差，利用Harr小波变换的方法可以对交流电量参数进行准确的测量；在暂态信号情况下，该方法与同步、准同步算法相比，可以达到很高的测量准确度。

A new theoretical model, the 2CLJDQP potential function, was developed for linear molecules, which takes into account dipole, quadrupole and induction effects as well as the rotation of the dipole out of the molecular axis. The energy parameters were optimized for various types of fluids. With the modified mixing rules, the potential parameters obtained from homonuclear molecules can be used to calculate the second virial coefficients of heteronuclear molecules. The model was also successfully extended to triatomic molecules. Analysis of the contributions to the second virial coefficients of long-range interactions shows that the molecular interactions introduced in the present model, such as, the induction effects, cannot be neglected.

建立了全新的线型分子2CLJDQP势能模型，考虑了偶极作用、四极作用及诱导作用的影响，还考虑了极轴与分子轴不平行的情况；回归了多种线型分子的势能参数；通过改进混合规则，可应用同核线型分子的势能参数直接计算异核线型分子的第二维里系数；扩展该模型可用于线型三原子分子计算；讨论了各长程引力项对第二维里系数的贡献，结果表明本模型引入诱导作用等是十分必要的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。