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- The strain energy density function equals the Helmholtz. 应变能密度函数等于亥姆霍兹函数。
- Secondly,given a chord length and a relative ground clearance,the wings in ground effect with different aspect ratios and endplate are simul. 首先,对给定面积和离地高度下不同展弦比的地效翼进行数值模拟;然后,对给定弦长和相对飞行高度下不同展弦比和带端板的地效翼进行数值研究。
- Firstly, select cumulative chord length parameterization and computing the knots of B-spline.Secondly, determine control vertexes and control polygon. 采用该方法,获得观测区间外的极值点参与经验模态分解,可以有效地控制边界误差。
- On the ground of data organization and density function construction of DENCLUE, this method makes use of optimal gradient technique to implement medical image segmentation by dynamic step length of hill climbing strategy. 该方法在DENCLUE数据组织和密度函数构造的基础上,采用最优梯度技术实现动态步长的爬山算法分割医学图像组织。
- Under water stress root dry weight of winter wheat grown in the pots is positively linearly related to its root length density significantly. 水分胁迫下,盆栽冬小麦根干重和根长密度呈直线正相关。
- Computational investigation for HIO3 isomers by density function theory[J]. 引用该论文 刘颖;刘文清;李海洋;程爽.
- At harvest,root length density and treflan concentration at different soil layer were evaluated using soil auger method. 冬小麦收获后,采用土钻法在滴头附近沿垂直方向分层取样,测定各土层的根长密度和氟乐灵含量,并统计各小区的产量。
- Density Functional Theory, Cytosine, Tautomerism. 密度泛函理论;胞嘧啶;
- Combined with the engineering example, the computing formula and method are analyzed from many aspects, such as the values of axis, arc length, chord length and vector height and other key elements. 框架 -剪力墙曲面结构建筑物的施工 ,梁、板、墙等各种曲面的控制尤为关键 ,结合工程实例就其轴线、弧长、弦长、矢高等要素在施工过程中 ,对其计算公式的确定与方法进行了分析。
- Electronic structure and bonding model of TATB are studied by density function and discrete varia-tional (DFT-DVM) method. 用离散变分密度泛函方法(DFT-DVM)研究了TATB分子的电子结构和成键图像。
- Root length density varied with fertigation frequencies, and the ratio of root length for different soil layers to the total root length in the profile varied with fertigation strategies. 施肥频率对根密度的影响主要是引起各土层根密度大小的变化,运行方式则对各土层根长占整个剖面根长总和的比例产生影响。
- The constraint condition for the strain energy density function of incompressible hyperelasticity is proposed. 通过对各种有限元方法的分析比较,适当修改了已有的应变能密度函数的形式使之更适合数值计算。
- Results: There were differences between volume density (Vv), surface density (Sv) and length density (Lv) of blood vessel of grey and white matter inside spinal cord.Conclusion: Volume... 结果:在脊髓内部灰、白质的毛细血管体密度,表面积密度、长度密度存在着差异。
- The jointed density function of two angles is developed for recognition of polyhedral objects. 利用投影角度的联合概率函数可识别多面体。
- The results showed that the CRNF could increase the root dry weight, root length, and root length density, while the root radius became smaller during later growth stages of hybrid rice. 控释氮肥中,氮的逐渐释放,可减少具有强烈伤害的活性氧产物速率及其累积数量,提高活性氧清除酶的活性,在很大程度上延缓了杂交水稻生育后期根系的衰老和吸氮能力的衰退。
- Added peripherals and higher density functions (approx. 增加的外设和更高密度的功能(近似)
- Density function B3LYP method was applied to study 10 cyclic hydronitrogen compounds. 应用密度泛函理论对10种环状氮氢化合物异构体进行了研究。
- An improved genetic algorithm was applied and examined to optimize the weights of a neural network model for estimating root length density(RLD) distributions of winter wheat under salinity stress. 应用改进遗传算法,优化人工神经网络模型的权值,对盐分存在下的冬小麦根系分布进行定量预报,将获得的根系分布参数与根系吸水模型以及水盐运移模型相结合,进行了水分、盐分分布的数值模拟。
- Tell me more about how CASTEP uses density functional theory. 关于CASTEP怎么使用密度告诉我更多功能的理论。
- Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province,the vertical distribution of root length density(RLD)and root mass density(RMD)were analyzed. 根据在郑州进行的冬小麦根系田间实测资料,研究了根长密度和根质量密度在砂壤土中的垂直分布。