界磁

This method uses the features of laser such as high-speed heating and cooling to implement scribing treatment on the oriented steel sheet surface so as to promote the generation of micro plastic deformation and high-density dislocation in its heated section, form the subcrystalline boundary, reduce its main domain wall length, and introduce residual tensile stress so obtaining the effects of refining magnetic domain and reducing iron loss.

降低硅钢片铁损的激光处理方法及装置。$该方法是利用激光快速加热和冷却的特点，对取向硅钢片表面做划线状处理，促使加热区产生微小塑性变形和高密度位错，形成亚晶界，减小主畴壁长，同时引起残余张应力，达到细化磁畴，降低铁损的效果。

This paper presents a nonlinear robust adaptive excitation control design procedure for multi machine power systems using back-stepping method. The control objective is to drive machine power angle and frequency to the steady-state operation point, and guarantee that the close-loop system is adaptive to the uncertainties of generator damping coefficient and d-axis reactance, and robust to model errors or bounded disturbances.

利用反步法设计了多机电力系统中的非线性鲁棒自适应励磁控制方案，控制目标是调节发电机功角和频率至稳态运行点的极小领域，并使闭环系统对发电机阻尼系数和电抗参数的不确定性具有自适应能力，且对模型误差和外部有界干扰具备鲁棒性，同时保证各控制器是分散化和本地化的。

X-ray analyses indicate that lattice parameters decrease due to Cu-doping; while XPS results show that Cu-doping leads to positive chemical shifts of the Cu 2P1/2 and La 3d5/2 and 3d3/2 levels, implying that Cu-O and La-O bondings are strengthened and their bond lengths are shortened; while magnetization measurements show that after 8 hours' Arannealing, the Neel temperature of Cu-rich sample is about 31K higher than that of the sample without Cu doping, indicating that the three-dimensional antiferromagnetic correlation is enhanced.

结合各种分析手段认为，掺杂的铜原子部分替代了 La 位，也有填补 CuO2面的 Cu 空位和在晶界形成微量第二相的可能占位情况，使得铜的掺杂取得了增强二维特别是三维反铁磁交换作用的效果，促进了La2CuO4+δ系统的相分离。

The text analyse region characteristic and rule of gravity and magnetism annormity in Chaoshan depression,conclusion think that the Chaoshan depression is tectonic transition belt of join two tectonic element about the dongsha islands to the xisha islands, the fault of turning towards the basin control growth of the Mesozoic group.

本文分析了潮汕坳陷区域重力、磁异常特征及地震地质规律，提出潮汕坳陷是衔接东沙群岛和西沙群岛两个构造单元的构造过渡带的观点，同时盆倾断层控制了中生界发育与分布。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。