查询词典 flux

A comparative study of the flux vector splitting techniques and the flux difference technique with different entropy fix formula is presented with regards to their ability to accurately predict the heat transfer rate on the surface of blunt body.

本文采用计算效率较高的标量对角化隐式NND格式，通过求解Navier Stokes方程对影响再入体表面热流计算准确的诸因素进行了综合分析。

Time is advanced by an implicit Gauss-Seidel relaxation procedure which is constructed by the first order linearizing of flux vector and the maximal eigenvalue splitting of flux Jacobi matrix.

为了验证本文方法的计算精度和鲁棒性，对NACA0012翼型低速流动、RAE2822翼型跨音速绕流和二维圆柱的分离流动进行了数值模拟。

This method has realized the state space decomposition of rotational speed and flux with the help of support vector clustering technique. In the process of clustering,the author proposed a proximity graph-based dynamic kernel parameter clustering method that is suitable for the control of motor rotational speed and glue pump flux in MDF production to solve the problem of high complexity of relative matrix calculation.

该辨识方法利用支持向量聚类技术实现电机转速与泵流量的状态空间分解，应用支持向量分类技术设计了多模型切换策略，并运用支持向量回归技术构建了状态空间内的转速与流量辨识模型。

Using this kind of fluxmeter, the heat-flux distribution in a pulverized-coal tangentially-fired test furnace under different operating conditions, the effect of sandwiched-air on the heat-flux and the dependence of the distribution on the coal properties were measured and investigated.

利用该辐射式热流计，作者测试并研究了四角布置切向燃烧锅炉炉膛内在不同燃烧工况下的辐射热负荷分布规律、夹心风的投入与关闭对炉内热负荷分布的影响，以及煤种变化时炉内热负荷分布的变化。

During the control of flux, the idea of FOC is used to decrease the response time of flux. As a result a FOC control of AC driver is performed first.

在转矩控制中，主要利用磁通角的改变来控制转矩，以提高转矩响应的速度。

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

To study the effect of laser flux on impulse coupling coefficient during the interaction between hydrogen fluoride laser and aluminum at air ambient and in vacuum, respectively, by changing laser spot size on the aluminum target, the relationship between impulse coupling coefficient and laser flux is obtained, which are compared with the interaction between CO2 laser and aluminum.

为了研究激光功率密度对氟化氢激光与铝靶相互作用过程中冲量耦合系数的影响，分别在大气和真空中，用聚焦后的激光烧蚀铝靶，通过改变聚焦到铝靶的光斑大小，得到冲量耦合系数和激光功率密度的关系，并将该实验结果与CO2激光和铝靶相互作用的实验结果进行比较。

In the case of the glass screen printing is colored flux, and ice is transparent, high-temperature eutectic, the glass with ice flower patterns based on the parts of the flux layer fade in on colored glass, transparent relief patterns based on the miniprobe ultrasonograghy.

如在玻璃上丝印的是有色熔剂，而冰花是透明的，通过高温共熔，则玻璃冰花纹样部位的熔剂层退色，而在玻璃面上形成有色、隆起的透明浮雕纹样。

Main research results are as follows:The distribution of electromagnetic field in inductor goes sameness when imposing high frequency magnetic field and intermediate frequency magnetic field where the magnetic flux density is symmetry along the center of inductor height and in which the distance from the center of inductor is further, the magnetic flux density is stronger.

主要结论如下：感应器通入高频电流和中频电流两种情况下，感应器内部的磁场分布趋势相同，感应器内部的磁感应强度沿感应器高度中心对称，半径越大的位置，磁感应强度越强。

We find a strong correlation between VLBI core flux and γ-ray flux in EGRET AGNs statistically. This correlation is possibly an upper limit relation.

通过对EGRET AGNs VLBI射电核流量和γ-ray流量的相关性分析，我们得出射电核流量与γ-ray流量间存在一显著相关，这种相关性可能表现为一上限关系。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。