结构化
- 与 结构化 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Apart from body color of puparial cuticle, there were microstructure differences which were found out by scanning electron microscopy. SEM had denser, more packed structure of the puparial exuviae than that of SEW.
扫描电镜分析结果表明,相对于SEW,SEM的蛹表皮结构更加的致密,表明黑化除了引起蛹的体色发生变异外,还引起蛹表皮结构发生了细微的差异。
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In this paper, we study structure-preserving algorithms for some doubly structured matrices and structured backward errors by Van Loans squared reduced method, quasi-QR factorization and Wielandt-Hoffman theorem.
本文利用Van Loan的平方约化方法,拟QR分解,Wielandt-Hoffman定理等对一些双结构矩阵特征值算法和结构向后误差进行了研究。
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The mathematical programming formulation and related solution procedure are established by the traditional BEM. Through the discretization of space and time, the elastoplastic stress simulation method and reduce-basis technique are adopted to construct the self-equilibrium stress field. The numbers of variables and constraint equations in the resulting mathematical programming formulation are reduced greatly and then the dimension obstacle of computation in 3-D limit and shakedown analysis is overcome.
采用常规边界元方法建立了三维结构极限与安定分析的数学规划格式,通过对时间和空间的离散化,并采用弹塑性模拟法构造自平衡应力场和引入减缩基技术,大大减少了所形成的数学规划格式中的未知变量和约束方程的数目,有效地克服了三维结构极限与安定分析中的维数障碍问题。
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The purpose of studying steel structure fireproofing is to improve the fire protection design of steel structure, thus to reduce casualties and loss of fortune.
国外在钢结构的防火方面已经有了许多成功的经验,并将钢结构的防火应用到防火规范和性能化设计规范当中。
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The vertical and parallel relations of the trench with drill drift are summarized by the bottom structure disposal design on inclined orebody footwall.
通过对倾斜矿体下盘底部结构的设计,总结了堑沟与凿岩巷道在垂直与平行位置关系,经比较和验算后合理设计底部结构,减少了开采损失贫化。
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For comparison reason, the planar and spatial models based on a forewing structure were analysed, it is shown that the cambered corrugation in the wings can improve the flexural stiffness of dragonfly wings effectively; the veins distribution and their size variation in different zones are quite reasonable.
对前翅平面模型和立体模型的静力性能进行了对比分析,发现翅膀中的起拱、起皱结构可显著提高蜻蜒翅膀的弯曲刚度;分布在翅膀不同区域的翅脉横截面尺寸与其受力大小是完全相适应的。对翅膀模型分有膜、无膜两种情况进行对比分析,得出翅膜中产生的膜应力刚化效应可有效改善翅膀结构的刚度。
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The effect of surface friction on the structure of front and frontogenesis is investigated by using the cloud model in which the large-scale deformation field is taken into consideration.
利用加入大尺度变形场作用的非静力模式,研究了地面摩擦对锋生和锋面结构的影响,在变形场锋生条件下,对不同模式格距、不同湍流参数化方案、不同变形场强度、考虑与不考虑地面摩擦等情形进行了比较,在考虑地面摩擦拖曳作用后得到了类似重力流结构的边界层锋面特征。
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The major content of this course includes: calculation, measurement and control of solid surface composition, the structure of solid surface, electronic potential, energy band structure and surface energy state of solid, the action between gas and solid surface, chemistry behaviors of molecular on solid surface (chemisorption and catalysis of solid surface), activation and passivation of solid surface, fundamental principle and application of photo and electricity surface reaction, design of solid surface functional materials, and etc.
基本内容包括:固体表面组成计算、测定与调控,固体表面结构表示方法、测定与控制,固体表面电子势和表面态、固体表面能带结构以及固体能带的测定,固体表面的功能、气体-固体表面间的作用以及气体-固体表面作用的研究方法,分子在固体表面上的化学行为(化学吸附和固体表面催化作用),固体表面的活化与钝化,光电表面化学反应基本原理及应用,固体表面功能材料的设计等领域。
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In this dissertation, we optimized the thinkness of each layer of TFEL devices using the layered optimization method to obtain ZnS: Ce〓 TFEL devices. Accoding to the energy level structure of Ce〓, two criteria for distinguishing the EL of Ce〓 were found out, from which it was conduded that the TFEL of ZnS: Ce〓 comes from 5d→4f transition of Ce〓. The measurement of brightness waveform showed that the TFEL of ZnS: Ce〓 was the luminescence from independent centers. and there were the field induced-delocalization in this process anf it〓s the cause of low TFEL efficiency of ZnS: Ce〓. In this dissertation, different influence factors on TFEL of ZnS: Ce〓 were sdudied. The influence of different host lattice is different: The blue/green ratio of ZnS: Ce〓 in hexagonal system of ZnS is larger than that in cubic system of ZnS, and the TFEL peaks in hexagonal system of ZnS moves toward longer wavelength compared with that in cubic system of ZnS. The adding buffer layer was used in this stage. The solubility of Ce〓 in ZnS was small and it was another limit to TFEL brightness of ZnS: Ce〓 device. The solubility of Ce〓 increased ten times when using Li ions as flux, so that the TFEL brightness of ZnS: Ce〓 was enhanced. It was found that the appearing of ZnO in active layer improves the TFEL of ZnS: Ce〓: the brightness and the wave range of ZnS: Ce〓TFEL were enhanced.
本文采用TFEL的分层优化方案,优化组合了各膜层厚度,选择最佳制备条件,得到了ZnS:Ce〓的TFEL;根据Ce〓的能级结构,找到了判别Ce〓的EL的两个简单依据,并据此断定ZnS:Ce〓的TFEL的两个发射峰分别属于Ce〓的〓和〓跃迁;亮度波形测量表明ZnS:Ce〓的TFEL属于分立中心发光,分析认为在此过程中存在着较严重的场致离化,这也是ZnS:Ce〓的TFEL效率较低的一个原因;本文考查了影响ZnS:Ce〓的TFEL的各种因素,发现:基质的晶体结构对ZnS:Ce〓的TFEL有所影响,在六角相ZnS中Ce〓的TFEL优于立方相ZnS中Ce〓的TFEL:发射峰的蓝-绿比相对较大,且光谱向短波方向移动,在此项研究中本文采用了在发光层前增镀过渡层的办法,过渡层为六角晶相的ZnO;限制ZnS:Ce〓的TFEL器件亮度的一个原因是Ce〓在ZnS中的溶解度低,本文用Li离子作助溶剂增大了Ce〓的溶解度,增大幅度为一个量级,并且ZnS:Ce〓的TFEL亮度明显提高;从ZnS:Ce〓的TFEL光谱来看ZnS:Ce〓的TFEL波长覆盖范围较小,亮度也不高,达不到做为白色TFEL材料的要求,需要寻找新的白色TFEL材料;在研究ZnS:Ce〓的TFEL中还发现:发光层中ZnO的出现有利于ZnS:Ce〓的TFEL:发射峰变宽、亮度增大。
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Superscript 3C NMR spectra for metallocene polyethylenes were measured to confirm the existence of various branches from methyl to hexyl end longer chains and other structural units. DRI from rheological data were used to determine the level of long chain branching in mPEs, and the results were compared with each other.
采用高分辨度(上标 13)C NMR谱直接测定茂金属聚乙烯的支化度及其他微量异种结构单元的组成,并过流变数据获得DRI指数来表徵mPEs长支链结构;对二者的结果进行了比较。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。