场强度

The; of down-lead of 200 A binary electric current that the design made intensity of central field magnetic induction be 3 T is opposite through the experiment of the thermal resistance of interior of the leakage heat of voltaic down-lead, heat exchanger and line of high temperature superconduction and cupreous matrix solder resistor undertook metrical, studied refrigeration engine trouble or the transient state temperature of down-lead of the electric current below power cut condition changes.

设计制作了中心场磁感应强度为3 T的200 A二元电流引线；通过实验对电流引线的漏热、换热器内部的热阻以及高温超导线和铜基体的焊接电阻进行了测量，并探究了制冷机故障或者停电状态下电流引线的瞬态温度变化。

At last, the configuration of a relief valve were improved, the cavitating flow simulation.

最后，对溢流阀阀芯形状进行了改进，通过对不同结构的化实验和噪声测试，实验结果与流场分析结果一致，改进后的阀气穴强度和噪声均得到降低。

The influences of deposition time on the covercivity and saturation magnetization of electroless CoWP thin films were studied, and the surface topography, elemental composition, micro-structure and magnetic properties of CoWP thin films were tested respectively by FSEM , XRD and VSM.

研究了施镀时间对化学镀CoWP薄膜矫顽力和饱和磁化强度的影响，并利用场发射扫描电子显微镜、X射线衍射和振动样品磁强计研究了CoWP磁性薄膜的表面形貌、成分、微结构及磁学性能。

The position width and absorbance of the transparency windows can be manipulated by adjusting the detuning of the driving field.

透明窗的位置、宽度和吸收高度均可以通过调节驱动场的强度和失谐进行控制。

By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.

第四章是本文的重点及主要创新内容，我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链，我们得到的主要结果和创新之处是：(1)证明了这一模型具有一种隐藏的对称性，即自旋第三分量为零的格点数目是一个守恒量，并证明基态出现在空穴数目为零的子空间中；(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型，并给出了相应严格的波函数及能谱；(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变，我们得到了量子临界点的精确位置，并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。

Er concentration.2. With the analysis of the optical parameters calculated by Judd-Ofelt theory and the lifetime of ~4I_(13/2) of Er gotten in experiment, we investigated Y dopings dispertion effect and influence to the environment of Er .3. In the research of Er/Yb/Al co-doped laser glass, we fixed the Er:Yb at 1:6 and varied the Al concentration.

我们利用Judd-Ofelt理论，计算得到了Er/Y共掺玻璃的Judd-Ofelt强度系数、光谱质量因子、自发辐射弛豫率和能级寿命等光谱参数，并且给出了不同Y掺杂浓度下Er~(3 )离子的荧光量子效率；结合Er~(3 )离子~4I_(13/2)能级的荧光寿命，深入探讨了掺Y对高浓度Er~(3 )离子在硼硅酸盐玻璃中分布的弥散作用和对配位场环境的影响。

The results show that for the global scale characteristics of the vertically integrated vapor flux fields, which is described in terms of the rotational and divergent components of the stationary parts of the vapor field, both GOALS and FGCM--0 can reproduce the subtropical gyres in each hemisphere, the eastward water va- por transport of the mid--latitude westerlies, and the westward vapor transport of equatorial easterlies reasonably, though the precise positions of the gyres simulated by GOALS, and the intensities of the gyre centers in FGCM--0 do not match the observations accurately.

结果表明：(1)对垂直积分的水汽通量场的流函数及其对应的无辐散水汽通量矢量的模拟，三个耦合模式都能够较为合理地再现副热带大洋的涡旋结构、中纬度西风带的东向水汽输送、赤道东风带的西向水汽输送和东亚夏季风水汽输送等行星尺度特征及其季节变化，只是GOALS的涡旋位置、FGCM-0的涡旋中心强度，较之实际略有偏差。

Accordingly the whole understanding to the pressure and velocity state of flow field around high-speed train is comprehended.

从而得第 11页西南交通大学搏士研究生学位论文到列车外部流场中压力和速度分布状况的较为完整的认识，为列车的强度设计，列车周围设施的抗风设计以及路边作业人员的安全和行为规范的制定提供了一个可资参照的依据。

When you slow the game down, that actually helps in the points too and it keeps you in half court defense.

当你把比赛节奏放慢下来，那事实上是对得分有帮助而且会保持你的半场防守的强度。

The low carbon steel thick hollow sphere is one of parts of mechanics engineering and method of improving its mechanics propertyis is heat-treat , such as non-constant temperature that non-stationary thermal stress is produced.

低碳钢厚壁球是机械工程中常见的构件之一，常采用热处理的方法来提高其机械强度，温度场的变化在厚壁球内产生非定常热应力。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。