查询词典 specific density

We find that the behaviors of charge density wave parameter and spin density wave parameter of nonperiodic Hubbard model are similar with behaviors in periodic Hubard model, and the distribution of.

本文对一维非周期的赫伯德模型和非周期的横场中量子伊辛链的量子相变和量子纠缠以及保真度进行了系统的研究。

The density may be normal at one place but low at another. Bone mineral density in the spine decreases first.

密度值在身体的某个部位可能是正常的，但在另一个部位可能会低些。

The experiments included normal crop density and high crop density.

试验分正常播量与多播量。

Based on the eigen theory of elastic mechanics , the Hamilton density functions for various deformation process are obtained by defining the normal conjugate momentum density , and the Hamilton normal equations for elastic body are also given .

Hamilton体系由于其方程具有对称性，在经典力学和量子力学及其场论等领域中发挥了重要作用。Hamilton体系与Lagrange体系的不同之处体现在：它是在相空间，以对偶变量的形式描述系统的运动规律。

Thirdly,The nuclear chromatin of lung carcinoma cells concentrate to periphery, the electron density of cytoplasm increased, in some cells,the heterochromatin of nucleus were blurry,and the nucleole became uniform in electron density, the formatio reticularis of nucleole disappeared.

细胞核的改变：细胞核内染色质边集，基质电子密度增高。有些细胞核内异染色质分界不清，核仁呈均一电子密度，网状结构消失。

The Anton Paar Density and Sound Velocity Analyzers combine two independent parameters, density and sound velocity, to cover a wide range of applications such as quality control in beer and soft drink production, concentration determination of sulphuric acid and oleum or ternary solutions.

安东帕密度和声速分析仪结合两种独立参数--密度和声速，覆盖大范围的应用如：啤酒和软饮料生产中的质量管理、硫酸、发烟硫酸或三元混合液体浓度的测定。

The effect of the angle on the basic density of the reaction wood: The basic density of poplars and pines in the reaction wood area are both larger than the opposite wood area in different angles.

倾斜角度对应力木基本密度的影响：不同倾斜角度下杨树、火炬松应力木区基本密度均大于对应木区基本密度。

The variation of density with depth is expressed as a function of n order polynomial function to deduce general gravity anomaly formula for 2 D density variable body having arbitrary and regular shapes.

本文把密度随深度的变化表示成任意次多项式函数，推导出了计算任意和规则形状二度变密度体重力异常的通用解析公式。

In the second part, by using uniform design and orthogonal design methods, some groups of mix test of foam lightweight with different component are conducted, the test data is analyzed by neural networks model and regression model, and optimum mix proportion is obtained. Orthogonal design for mix material considering density factor is presented, as well as uniform design for mix material adapting to different density. The mechanic characteristics of foam lightweight material and engineering characteristics differing from general material under an allround press are founded. Through the analysis of asymmetry settlement for Doulong sluice and the comparison of correct deflection scheme, the foam lightweight material shows some advantages in the load reduction.

在泡沫轻质材料的研究方面，利用均匀设计和正交设计方法进行了几组不同组分的泡沫轻质材料的配方试验，利用神经网络模型和回归模型对试验数据进行处理，得出最优配方；提出了考虑密度因素的混料配方的正交设计方法和适合不同密度时的混料配方均匀设计方法；研究了泡沫轻质材料的力学特性，并发现了在围压作用下所表现出的不同于一般材料的工程特性；论文将上述研究成果用于斗龙港闸工程的处理设计，通过对该闸的不均匀沉陷分析和各种纠偏方案比较表明，采用泡沫轻质材料进行减载处理有一定的优越性。

Topics covered include: density estimation incorporating such topics as kernel density estimates, nearest neighbor estimates, variable kernel methods, orthogonal series estimates, maximum penalized likelihood estimates

包括：密度估计（如：核密度估计，最近邻估计，可变核方法，正交序列估计，最大补偿似然估计法，带宽选择），非参数回归(如：核方法，样条方法，补偿似然估计，带宽选择，广义可加模型，)和bootstrapping方法。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。