热流

Methods The clinical data of 52 patients who were hospitalized during the 3 epidemic period of dengue fever from 1997 to 2002 were analysed.

方法对 1 997～ 2 0 0 2年该地区 3次登革热流行期间在某院住院的 5 2例患者临床资料进行分析。

The diagonal form of implicit approximate factorizated NND difference scheme is used to solve the three-dimensional compressible Navier-Stokes equations.

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。

In the 1970's he was engaged in studying earth thermal current and mine geothermal energy, which filled the gaps in this field for the country.

上世纪70年代从事大地热流和矿山地热研究，填补了中国这一领域的空白。

It was found that heat transfer enhancement was related to electric field homogeneity, electric field intensity and heat flux.

结合试验和电场分布的计算结果，分析了电场均匀性、电场强度、热流密度与沸腾换热效果之间的关系。

In order to investigate the frictional temperature of brake rotor,the thermal transmission model of brake disc during braking was theoretically derived,and the equation of heat conduction on the basis of change of friction heat flow intensity and experimental research to real brake plate was obtained.

为了研究摩擦过程中制动盘摩擦表面温升的情况，在1∶1惯性制动实验研究的基础上，基于制动过程中摩擦热流强度的变化，建立了制动时制动盘传热模型，推导出了制动盘摩擦表面温度的计算公式，并用此公式算出的结果与实测温度进行了对比。

The equation of heat conduction with surface effect is derived by applying the minimum principle of latent heat flux to describe the temperature distribution and reveal the size-dependence of thermoelastic damping in the form of energy dissipation during the vibration process.

由热流势原理导出了包含表面效应影响的热传导方程，描述了振动过程中温度的变化分布，揭示了热阻尼在表面效应影响下的尺度相关性。

In the analysis, firstly, the flux boundary condition is used to simulate the frictional heat resource between wheel and rail. The non-steady heat transfer between the contacting surfaces of the wheel/rail, heat-convection and radiation between the wheel/rail and the ambient were all taken into consideration. Therefore, a heat coupling model of the wheel/rail in rolling/sliding is put forward to calculate the frictional temperature rise in the wheel and rail. Secondly, after the temperature distribution of wheel/rail, due to friction, is calculated, substitute the thermal load with equivalent fictitious body force and boundary distributed force loaded on the nodes of the corresponding elements. The wheel-load is applied to the center of the wheel.

首先，用热流边界条件模拟轮轨接触界面的摩擦热源，考虑轮轨间的非稳态热传导、轮轨自由表面与环境的热对流、热辐射的影响，建立轮轨滚动接触热耦合有限元计算模型，分析计算轮轨滚、滑工况下的摩擦温升；其次，以求得的轮轨温度场结果作为求解轮轨应力场的已知条件，轮载以集中力形式直接加载于轮心处，将摩擦温升引起的热载荷等效为假想体力和热边界面力，施加于相应的单元节点上，建立了轮轨热—机械载荷耦合作用的热弹性平面应力模型，分析热—机械载荷作用下的轮轨应力场。

In addition, the impact of different mass flow and heat flux density to the heat transfer coefficient is analyzed by changing its boundary condition.

此外，通过改变边界条件分析了质量流量、热流密度的变化对缩放管管外沸腾换热系数的影响。

The rate of temperature rise will increase with a larger increasing rate of heat flux and a smaller wood density.

研究了不同热流变化率下木材的温度分布，并与实验结果进行了比较，发现模型可以较好的预测热解过程中的温升。

The spatial distribution of the flux density is investigated by the CCD method and calibrated by heat flow meter.

采用CCD法得到了能流密度的相对分布并用热流计标定出能流密度分布。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。