参数变化

Taking into account temperature-dependent thermal conduction and heat capacity, a three-dimensional transient finite element model was established.

在考虑随温度变化而变化的热传导、比热容等热物性参数的作用下，建立了直接金属多道烧结的三维有限元分析模型。

A method to estimate the variation upper bound of end-to-end delay is proposed. The anycast requests with QoS constraint are supported by measuring, sharing and estimating network parameters between routers and anycast members in a small region.

同时，提出了一种由分段延迟变化估计总体延迟变化上界的方法，通过组成员和路由器之间的小范围网络参数的测量、分享和估计，支持带QoS约束的任播通信请求。

The variation of OC corresponded with those parameters, which suggested vegetation plays an important role on OC.

有机碳含量的变化与这些植被参数具有良好的对应关系，说明植被变化是控制有机碳含量的重要因素。

The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.

塔河油田奥陶系碳酸盐岩油藏的地质研究表明，其储层中发育着很多大型的溶蚀洞、缝，储层的平面展布呈现出极度的非均质性，形成了典型的缝洞型碳酸盐岩油藏，根据各种孔隙介质在储层中的组合，将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类；研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关；多期充注的油气成藏模式导致了流体复杂的赋存状态，由此提出了所谓的"瓶子模型"，解释生产过程中油水界面的变化；特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性，为了合理的解释油气田开发过程中的动态特征，提出了"缝洞单元"的概念，并制定了"缝洞单元"纵横向划分的基本原则和依据及划分方法，并对"缝洞单元"进行了分类和评价；基于地质特征和流体在其中流动规律的研究，提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案，通过模拟单元的选择、流动类型和参数的等效，建立了三重介质油藏三维三相数值模拟模型，采用不完全LU分解预处理共轭梯度法进行了求解；在塔河油田4区精细油藏描述的基础上，将各种类型的孔隙空间进行了归类组合，建立了S48单元的地质模型；通过对油井生产动态进行分析研究，建立了两类和油井地质、生产动态相对应的单井模型；最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟，通过局部加密和粗化等技术模拟流体流动规律，取得了很好的拟合效果；结合数值模拟结果，分析了各种介质中的储量分布、储量产出的百分比以及地层的能量，认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中，所产出流体90%以上也来自于缝洞系统，其底水能量属于较充足的类型；模拟结果和油田实际情况符合较好，说明了地质研究和油藏数值模拟研究的正确性。

With the heat source moving, the whole weldment's temperature sharply changes, and the material's physical property parameters also sharply change. At the same time, there is latent heat of melt and phase-change.

随着热源的移动，整个焊件的温度随时间和空间急剧变化，材料的物理性能参数也随温度剧烈变化，同时还存在熔化和相变时的潜热现象。

Because there is only one working solution storage tank used in the energy transformation and storage system, the mass of solution in the tank changes continuously during energy charging or discharging process, which makes the operation parameters of the system change.

由于在蓄能系统中仅用一个溶液储罐，在储罐充、释能过程中溶液的质量不断发生变化而使系统运行的工作参数发生变化。

The key point with this method is the identification of terms, known as workless forces, which appear in the dynamic equations of active filter but do not have any effect on the energy balance equation of the closed loop.

基于此，将PBC方法与自适应控制相结合，实现线路参数与负载变化时参考谐波电流的准确跟踪，并有效抑制由电阻、电感变化引起的跟踪误差。

The obstacle (the altitude of 900 mm) process for both sides of a planetary gear train was analyzed in ADAMAS. It is proved that the physical dimension of the planetary gear train, bodywork center position and attachment coefficient are the key effect factors. The driven moment, velocity and normal pressure sharply increased as each wheel surmounting obstacles, but they were moderate after the front wheel came over the obstacles. Another weaker pulse occurred when the rear wheel began climbing, and then the parameters reached a plateau.

行星轮系的结构尺寸、车体质心位置及附着系数对越障高度影响较大；各轮系越障时出现驱动力矩、速度和正压力急增的现象，前轮系的前轮越上障碍后，各参数值趋于平稳，后轮越障时又出现瞬时脉动，但脉动较小，后轮系也有相同的变化趋势，各轮的阻力矩和输出功率与正压力变化趋势相同。

SPSS11.5 and excel statistical software were performed for the statistical analysis. 2. Experiment in vivo MRIgHIFU thermocoagulation was carried out in muscular tissues of rabbits. The parameters were power-250W and time-15s under the dot irradiating. MRI T-MAP was observed during treatment and the region size of adscendent temperature was measured (blue:45℃-50℃,green:50℃-55℃,yellow:55℃-60℃,red:60℃-100℃).Af-ter treatment, firstly, scan PD_tse and T2_tse, secondly, observe the changed signals of these images and measure the regions, finally, observe skin damage and measure the tissue necrosis.

活体实验以正常新西兰大白兔作为实验对象，辐照参数为声功率250W，辐照时间15s，选择大腿肌组织为靶区行定点辐照，观察靶区表面皮肤损伤情况， HIFU辐照过程中观察MRI温度图变化，测定不同温度的颜色范围(蓝色45℃～50℃，绿色50℃～55℃，黄色55℃～60℃，红色60℃～100℃)，辐照结束后观察T2和PD图像的信号变化并测量其范围大小，分别与实际组织损伤作比较，结果应用SPSS11.5统计软件包和Microsoft Excel软件进行分析。

Based on the previous manner, the effect of soil parameters such as thickness of supporting course, depth of embedded and pile dimension on vertical bearing behavior of large diameter belled pile in soft substratum are studied.

在此基础上，分别研究持力层厚度、桩端入持力层深度和土层参数的变化以及桩身尺寸的变化对存在软弱下卧层的大直径扩底桩竖向承载性状的影响。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。