抑制地

This project studies the scale-dependent deformation behavior of the metal matrix composite, the void nucleation and void growth mechanisms at the micron/submicron scale. The main results are:(1) In prophase, growth and coalescence of the void embedded in the graded matrix are analyzed in detailed;(2) Based on the infinite solid model containing a micro-void, coupling effects of the void shape and the void size on the void growth are studied carefully, the results show that it seems to exist a critical equivalent void radius, which is associated with the material length. When radius of a microvoid is close to or smaller than the critical void radius, the micro-void growth rate is essentially eliminated;(3) The coupling effects of the particle shape and size on the mesoscopic stress fields within the particle and matrix are also investigated by introducing the conception of inclusion/matrix interfacial energy. The results show that the stress concentration factors within the particle and on the matrix/particle interface are also strongly size-dependent,so the void nucleation mechanism is size-dependent.(4) By employing a specific orthogonal curve coordinate frame and a 'kernel function' conception, a 'unified method'solving the spheriodal and spherical void problems is suggested; by this unified method, size-dependent plastic potentials of the porous materials containing the spheriodal or spherical voids are obtained, which extend the traditional Gurson model for the spherical void and GLD model for the spheriodal voids to the micron scale.(5) Based on the RVE model containing the spheriodal or spherical particles, the influences of the particle shape and size on the size-dependent mechanical behavior of metal matrix composite are studied.

中文摘要：本项目对金属基复合材料在微细观尺度下的尺度相关变形行为、孔洞形核及长大的机理和模型进行了研究，取得了如下主要结果：1）在前期研究中，探讨了基体的梯度分布对孔洞长大和聚合的影响；2）基于含孔洞的无限大体模型，探讨了孔洞形状和孔洞尺寸对其长大的耦合作用，结果表明：可能存在一个与材料特征长度相关的临界孔洞尺寸，当椭球孔洞的等效半径小于临界孔洞半径时，孔洞的长大受到明显抑制；3）通过引入基体/夹杂界面能的概念，分析了夹杂尺寸、夹杂形状对材料细观应力场的耦合影响，结果表明：颗粒内部和界面上的应力集中因子强烈地依赖于夹杂的尺寸和形状，因此，孔洞的形核机理是尺寸相关的；4）采用一种特殊的正交曲线坐标系和引入"核函数"的概念，"统一"地得到了含椭球和球形孔洞的材料的尺寸相关塑性势，它将传统的Gurson球形孔洞模型和GLD椭球孔洞模型推广到微尺度范围；5）基于含椭球和球形夹杂的体胞模型，初步研究了夹杂形状、夹杂尺寸对金属基复合材料尺寸相关力学行为的影响。

Ionized helium at least, the density minimum, it can quickly disperse from the metal bath of metal vapor produced by an increase, so to use helium as shielding gas, the plasma will be to maximize the suppression, thus increasing the penetration depth, improve welding speed.

氦气电离最少，密度最小，它能很快地驱散从金属熔池产生的上升的金属蒸气，所以用氦作保护气体，等离子体将被最大程度地抑制，从而增加熔深，提高焊接速度。

The results show that BDT can be assembled on the surface of copper electrode to form monomolecular self-assembled membrane,and the membrane can efficiently inhibit the copper base corrosion in the 3% NaCl corrosion medium and acidic solution.

实验表明：BDT能够有效地组装到铜的表面形成单分子自组装膜，BDT自组装膜能有效地抑制铜基底在3%NaCl腐蚀介质以及酸性NaCl溶液中的腐蚀行为；缓蚀效率随组装时间的延长逐渐升高并趋于稳定，在pH值较低的溶液中仍具有较好的缓蚀效果；当BDT浓度为1.0×102 mol/L、组装时间为40 h时，铜电极的腐蚀电流最小，缓蚀效率最好。

Berause of the fact that when image resolution is reduced, the image high-frequency characteristics are distorted and the image low-frequency characteristics are held, this method has noiseproof feature and large-scale weak edge detection property.

由于低分辨率采样下图像高频特征失真较大，而低频特征失真较小的原因，这一算法能很好地抑制图像噪声，有效地提取出图像中大尺度弱边缘。

This opaqueness makes it more difficult for equity and debt holders to exert corporate governance of banks and it can weaken competitive forces in the product market and the market for corporate control.

除了银行的不透明之外，政府力量在银行部门的存在对于各种公司治理机制有着深刻的影响：存款保险制度或隐性的政府担保降低了债权人监督银行的激励；对银行业的规制和监管限制了银行业的竞争和并购行为：而政府成为银行的所有者则使政府不再是一个独立的监督者，并且极大地削弱了私人部门对银行进行监督的激励，也极大地抑制了银行业的竞争。

In the case of overcompensation, a series of physiologicalmetabolisms were improved. Plant height was decreased but LAI increased.Photosynthesis, contents of proteins, soluble sugar, starch and nitrogenmetabolism ect. showed the same trend of increase at first followed bya decrease, and then came with fluctuation close to CK.

在发生超补偿作用时，棉株体内各项生理状况都有较大改善，如株高生长受到抑制，叶面积系数增大，体内光合作用、蛋白质代谢、可溶性糖、淀粉及氮代谢等生理活动都表现出先增强而后减弱的变化趋势，然后是向CK尽量地靠近并有波动地与之保持一致。

With Matlab simulation software, a research on simulation of harmonic detection means based on instantaneous reactive power theory is carried out, and a detailed analyse of the simulation result is presented. The result indicates: the harmonic detection means based on instantaneous reactive power theory can detect harmonic and reactive component in three-phase current precisely and re...

利用Matlab仿真软件，对基于瞬时无功功率理论谐波检测方法进行了仿真研究，并对仿真结果进行了较为详细地分析，仿真结果表明：基于瞬时无功功率理论谐波检测方法可以准确、实时地检测出三相电流中的谐波电流及无功电流，可为抑制谐波和无功补偿提供可靠的谐波及无功电流分量。

In the low B condition of the soilless culture, rapeseed seedlings were short of B, the seedlings were short and the leaves were malformed and the weight of the shoots decreased, the branch roots were fewer and snuff color, the weight of roots decreased, and the length of root and the ratio of shoot/root decreased, too. However, the high B- efficiency type of rapeseed had the a great ability to the low B stress, the growth of shoots and roots were better than the low efficiency, and the B concentration range of the rapeseed varieties which responded to the B scarce was 0.001 mg/L to 0.01 mg/L.

营养液培养条件下，苗期缺硼，甘蓝型油菜植株瘦小，叶片皱缩，地上部生长量下降；侧根少且呈现黄褐色，根重、根体积、根长以及根冠比下降；高效品种具有较强的耐低硼胁迫的能力，表现为同等缺硼条件下，对高效品种地上部和根系生长的抑制作用都相对较小，且品种间对缺硼反应差异最大的硼浓度范围为0.001mg／L—0.01mg／L。

This paper describes the succulence of organs of Suaeda salsa seedlings treated with different salts. The growth of the seedlings was markedly enhanced by NaCl but markedly inhibited by NaF treatment. The degree of succulence was the greatest in leaves, second in stems and third in roots of seedlings treated with NaCl.

用不同的钠盐和含Cl-的盐处理盐地碱蓬幼苗后，测定不同器官的肉质化及相关生理指标，结果表明：NaF处理明显抑制盐地碱蓬幼苗的生长；NaCl处理下生长最好，其中叶片的肉质化程度显著高于对照，正在伸展茎次之，而根则不明显；其次是NaHCO3，肉质化程度也明显高于对照；CaCl2和KCl处理下肉质化程度都与对照相似；MgCl2处理下叶片的肉质化程度明显低于对照。

And, in spite of his efforts to prevent it, the eyes of Edmond were suffuse d in tears as he reflected that on that spot the old man had breathed his last, vainly calling for his son

爱德蒙虽极力抑制着自己的感情，但当他一想到那个老人曾躺在这个位置徒然地呼唤着他的儿子的名字而断气时，他的眼睛里不由自主地涌满了泪水。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。