禁
- 与 禁 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Trivial Solution conception is put forwarded based on the theorem of K〓nig and forbidden node----for the n×n 0-1 degeneracy matrix, the solution under the condition that all element 1 can not be covered completely by n lines that must have intersects or can be covered completely by n lines that must have cross, without forbidden node, are called TS matrix.
本文在K〓nig定理和禁点定理的基础上,提出了平凡解的概念,即对于n×n阶的退化矩阵,全部1元素不可能被n条有交叉的直线全部覆盖或能用n条直线覆盖全部1元素,但无禁点的情况称为平凡解。并证明了如下的平凡解产生的充分必要条件:对退化矩阵A〓,若
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Since the forbidden bands can appear in ranges above ultra-violet frequencies,superlattice may become a good reflectorof ultraviolet light or waves of even higher frequencies.
所得结论是:极化激元呈现为能带,在禁带内电磁波不能传播,因而将完全被材料反射,由于禁带可以出现在紫外以上的频率区间,故超晶格有可能作为紫外甚至更高频率电磁波的反射器件。
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The results showed that the TiN andN films are polycrystalline phase. The properties and structure of TiN films are mainly determined by the N2 mass flow rate, and as the N2 mass flow rate increases, the structure of the TiN films transforms to f.c.c. type leading to better the properties of films. The presence of negative bias voltage can optimize the grain of TiN films, lower the defect proportion and denser the films, which improves the hardness of films. The TiN films conform to the free carrier absorption mechanism and there are many of free electrons with lower N content in TiN films. With the increase of N content, the quantity of free electrons and reflectivity of films decrease, and the plasma frequence shifts to the lower energy, which leads to the regular change of colors of films from silver, yellowy, golden to yellow-red, meanwhile the lightness of films decreases. The goldenN film consists of TiN and ZrN phase, but belongs to a sigle f.c.c. structure with (111) preferred orientation. The Zr-doping dosen't change the position of the valance band, conduction band and forbidden band ofN film, but leads to the presence of new energy levels, which is the reason thatN film remains golden. The transparent hard films with good corrosion resistance and high hardness have been prepared and the further reseachs showed that the grain size of those films is by far smaller than the wave length and the width of forbidden band of those films is very broad, is the reasons that those films are transparent.
研究表明:氮化钛和N 薄膜为多晶态,氮流量决定了氮化钛薄膜的结构和性能,增加氮流量能使氮化钛薄膜的结构向面心立方结构转变,从而得到性能良好的氮化钛薄膜;施加负偏压能优化氮化钛晶粒和减少薄膜中的缺陷,使膜层变得更致密,从而提高薄膜硬度;氮化钛主要遵循自由载流子光吸收,氮含量较少时薄膜中的自由电子数目较多,随着氮含量的增加,薄膜中的自由电子数目不断减少,反射率逐渐降低,等离子体频率向低能端移动,从而使薄膜颜色出现规律变化,由金属色银白色到淡黄、金黄再到红黄,并且薄膜亮度呈下降趋势;金黄色的N 薄膜中存在TiN 和ZrN 的分离相,但其为单一的面心立方结构并具有(111)面择优取向;相对于TiN 薄膜,Zr 掺杂后,并没有使薄膜的导带、价带和禁带发生变化,只是在TiN 禁带内增加了新能级,这也正是掺杂Zr 后,薄膜仍
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The spectrum peaks nearby 530nm and 480 nm are corresponding with BTSD and BMD respectively. It is found from measurement that the luminescence peak from BMD is bluely shifted. The atoms of BTSD nearby dislocation core are affected by tensile stress along the Burger's vector direction leading to its band gap narrowed. In addition, there is the effect of part quantity of edge dislocation in BMD existed. Part of atoms in BMD are strained by compressive stress leading to its band gap narrowed, in other words, the wavelength from BMD is shorter than that from BTSD.
从测试结果中还发现BMD 的发光位较BTSD有所蓝移,分析认为BTSD位错芯附近原子沿伯格斯矢量方向只受到拉应力,致使禁带宽度变窄,BMD由于除了具有螺型位错的分量外还具有部分刃型位错的分量,而刃型位错中有部分原子受到压应力的作用,导致禁带宽度增宽,从而使得BMD的发光波长比BTSD短
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He also appointed as prefect of the guard Flavius Juvenalis, whom Julianus had taken as his own third prefect.
他还将尤利阿努斯的第三任禁卫军长官弗拉维乌斯·尤文尼斯任命为禁卫军长官。
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In Anxi County, food production service values in prohibited grazing region in lowland halophytic meadows and desert grassland increased 16.25 yuan/hm^2 and 7.75 yuan/hm^2, and total values increased by 176.5 yuan/hm^2 and 170.5 yuan/hm^2, respectively.
安西县低地盐生草甸草地禁牧区较非工程区食物生产价值增加了16.25元/hm^2,总价值增加了176.5元/hm^2;温性荒漠类草地禁牧区较非工程区食物生产价值增加了7.75元/hm^2,总价值增加了170.5元/hm^2。
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In chapter 4, by AREELS, the Generalized Oscillator Strength Density Spectra were measured in the energy region from 56 to 66eV, with the incident energy 2. 5 keV and energy resolution 80 meV, at scattering angles from 0°to 6°, corresponding to the momentum transfer K〓=0.03~2. 01 a. u. The Fano profile parameters f〓 and q for the optically allowed transition 〓(0, 1)〓P°and the optically forbidden transitions 〓(1, 0)〓S〓and 〓(1, 0)〓D〓 were obtained as a function of K〓. With the hyperspherical coordinate wavefunctions, the dynamical correlation are discussed qualitatively. So, a new experimental way to study dynamical electron correlation effect is opened.In chapter 5, the widely used R-matrix theory was introduced. Then, the GOSDS for the optically allowed excitation series (1s〓)〓S〓→〓(0, 1)〓P°(n=2-4) were calculated by this method, and the Fano profile parameters f〓 and q were obtained sequently. So the electron correlation effect can be described by these parameters quantitatively, and the theoretical results were compared with our AREELS experimental results.
在第四章中,实验上,同样使用角分辨的高能量分辨快电子能量损失谱仪,在2.5keV电子入射能量和80meV的能量分辨下,测量了0°到6°散射角下的He原子双电子激发态在56~66eV的广义振子强度密度谱,这种情况,0°~6°对应的动量转移范围K〓=0.03~2.01a.u。,得到了光学允许跃迁的双电子激发态〓(0,1)〓P〓和光学禁戒跃迁的双电子激发态〓(1,0)〓S〓、〓(1,0)〓D〓的Fano线形参数f〓,q等随动量转移变化的曲线;观测到了几个强度很弱、能级很窄的光学允许和禁戒跃迁双电子激发态,用前人准确的理论结果进行了标识;通过比较弱共振〓(1,0)〓S〓和〓(-1,0)〓S〓的强度随动量转移K〓的变化规律,结合超球坐标理论计算的波函数,定性地阐述了在电子碰撞散射过程中它们各自不同的动力学电子关联效应,发展了一套在实验上研究电子关联效应的新方法。
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The contents are: measure and tuning of accelerating cavities, coupling cavities, measure of quality, field distribution, dispersion curve . and the way of measuring and eliminating the stop band, etc. At the same time, utilizing the test data and the dispersion equation of cavity chain, we make a fit dispersion curve by way of least squares fit, and we work out the width of stop band and the intercavernous coupling coefficient.
内容包括:加速腔频率韵测量和调谐、耦合腔频率的测量和调谐、品质因素的测量、场分布的测量、色散曲线的测量、禁带的测量和消除等,同时,论文还从腔链色散方程和测得的实验数据出发,利用最小二乘法进行拟合得到拟合色散曲线,并计算出禁带的大小和腔间耦合系数。
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A ruling by the Commission, using its plenary power,(1) that a work is to be deemed, for nomenclatural purposes, as unpublished, or that names and acts in it are not available; or (2) that an available name is never to be used as valid because it is available only for the purpose of homonymy ("partial suppression") or it is not available for the purposes of priority and homonymy ("total suppression"; but a totally suppressed species-group name may still denote the type species of a nominal genus or subgenus [Art. 81.2.1]); or (3) that an available name is only to be used as valid under stated conditions (e.g. when not considered a synonym of a particular later name)("conditional suppression").
委员会使用其全权,以裁决(1)基於命名法的意冒,一著作物为未出版,或其中的名称和举动为不适用;或(2)一个适用名称永不得作为一个有效名称,因为该名称仅基於异物同名的意旨时始称适用,或基於优先权和异物同名关系的意旨而不适用(&完全禁制&;但是一个被完全禁制的种群名称仍可指示一个命名属或亚属的模式种[第81条2.1]);或(3)一个适用名称仅在申明的条件下用作有效名称(例如在不被认为是一个特别的较后名称的同物异名时)。
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The reporter understands,"Ban fluid to make " publishing setting basically is to ensure to mail security is used during the Olympic Games, time comes from June 1 on October 31, mail, express is banned receive kinds or types of goods to include a liquid kind, chemical industry kind, pulverous kind, Electromechanical device kind, similar soap lump article and unidentified metal, of unidentified gas or liquid obturator.
记者了解到,&禁液令&的出台背景主要是为了确保奥运期间用邮安全,时间从6月1日至10月31日,邮寄、快递禁收货品包括液体类、化工类、粉末类、机电装置类、类似肥皂块状物品及不明金属、装有不明气体或液体的密闭装置。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力