In this paper,a systematic direct perturbation method of dark solitons is found.Having analyzed the mistakes in earlier works on perturbation method for dark solitonsand essence of the direct perturbation method for bright solitons,we notice that to in-troduce the adjoint solutions of the squared Jost solutions and to prove the completenessare crucial to the problem.Giving up the unnecessary scheme of introducing the adjointoperator in the bright soliton case,we directly find the adjoint solutions by meetingthe demand for the orthogonality that inner product of the squared Jost solutions andits adjoint should be proportional to a δ function in the case of continuous spectra.The corresponding adjoint operator is thus found.Taking into account the reductiontransformation,we find a correct description for the completeness of the squared Jostsolutions and directly verify its validity with explicit expressions of the squared Jostsolutions.

本論文建立了系統(tǒng)的暗孤子直接微擾方法，在對(duì)前人關(guān)于暗孤子微擾方法的錯(cuò)誤以及亮孤子直接微擾方法的本質(zhì)作了充分的分析后日韩色图欧美色图，認(rèn)識(shí)到引入平方Jost解的伴隨解和證明完備性是問(wèn)題的關(guān)鍵免费色网，撇開過(guò)去亮孤子情況首先引入伴隨算子的非必要作法，直接從平方Jost解與其伴隨解的內(nèi)積在連續(xù)譜時(shí)正比于δ函數(shù)這一正交性要求出發(fā)黄色录像一区二区三区中文字波，找出了伴隨解国内特一级A片黄片，同時(shí)得出了應(yīng)有的伴隨算子，在考慮到約化變換性后黄片在线免费没播放，得到了暗孤子情況的平方Jost解的完備性的正確表述福利性视频，并在單個(gè)暗孤子的情況利用平方Jost解的顯式直接驗(yàn)證了它的正確性。

The idea is to add some lower degree terms in the remainder of orthogonal expansion in an element so that the remainder satisfies more orthogonality conditions in the element, and get a desired superclose funtion uI to finite element solution uh.

簡(jiǎn)述了有限元超收斂研究的一種新想法日韩无码黄色性交，即在單元正交展開的余項(xiàng)中添加若干待定低次項(xiàng)色就色69视频，使此余項(xiàng)在一個(gè)單元上滿足更多的正交性條件，并得到所需的超接近于有限元解uh的逼近函數(shù)uIh视频乱。

It is proved that a signal can be decomposed into the linear superposition of a series of component signals by singular value decomposition using these two kinds of matrices. However, the component signals obtained by the first kind of matrix are orthogonal with each other, while those obtained by the second one are correlative with each other.

文中從理論上證明了在這兩種矩陣方式下手机在线免费看黄色片网站，奇異值分解都可以將信號(hào)表示為一系列分量信號(hào)的線性疊加，但是第一種矩陣獲得的分量信號(hào)是彼此正交的中文字幕在线更新资源站，而第二種矩陣獲得的分量信號(hào)則不具有正交性。

Based on the array signal processing and the eigenstructure decomposition method, the signal subspace and the noise subspace are achieved by reconstructing and decomposing the data matrix collected by the array sensors. By using the orthogonal properties of the two subspaces, the information about the velocities and bearings of spatial moving targets can be exactly obtained.

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According to the orthotropy and characteristics which have an extremevalue probably also in the region of 0—90°with respect to the rolling dire-ction of an orthotropic metal sheet,besides 0°and 90°,a model describing theanisotropic pattern of mechanical properties of an orthotropic metal sheet un-der uniaxial tension is developed by this paper.

本文依據(jù)板料異性性質(zhì)的正交性欧美性爱网站在线免费，以幾種符合正交特性的函數(shù)對(duì)一些材料的試驗(yàn)數(shù)據(jù)進(jìn)行了擬合和對(duì)比国产醉酒迷奷系列在线观看，并與現(xiàn)有的異性模型進(jìn)行了比較。結(jié)果表明日韩精品国语在线观看视频，以形式為 A=A中文,不卡,AV？

Thus, in OFDM communication sytems, carrier frequency offset must be estimated and compensated at the receiver to minimize the effects of intercarrier interference and maintain orthogonality.

因此六六六日黄色视频，在正交頻分復(fù)用通信系統(tǒng)中，接收信號(hào)必須進(jìn)行頻率偏移估計(jì)和補(bǔ)償來(lái)減小載波間干擾并維持子載波之間的正交性免费在线色。

For example, IEEE 802.16e supports vehicle speed up to 120 km/hour, and IEEE 802.20 supports vehicle speed up to 250 km/hour. OFDM systems can be used efficiently in time invariant environments with one-tap equalizers. However, subcarriers are no longer orthogonal to each other in time-varying channels, and this causes the intercarrier interference and degrades the system performance.

傳統(tǒng)的正交分頻多工系統(tǒng)可以有效率地使用在非時(shí)變通道中AV永久免费网站在线观看大全，且僅需簡(jiǎn)單的等化器，即可修正通道效應(yīng)久久精品国产99久久，但在移動(dòng)的環(huán)境中亚洲一级AV黄片，通道隨著時(shí)間改變，使得接收端的子載波失去正交性可以直接免费观看的黄色网站，因而導(dǎo)致子載波之間的相互干擾一级大黄片电影，使得解調(diào)變后的效能降低。

For example, IEEE 802.16-2005 supports vehicle speed up to 120 km/hour. OFDM systems can be used efficiently in time invariant environments with one-tap equalizers. However, subcarriers are no longer orthogonal to each other in time-varying channels, and this causes the intercarrier interference and degrades the system performance.

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There is abrupt phase change in nonsinusoidal waves modulation. It can easily produce impulse current and bring large difficulty to high-power emission system; so it is not beneficial to holding the orthogonality between the orthogonal pulses and demodulating information.

非正弦波調(diào)制信號(hào)存在相位突變，在工程實(shí)踐中易產(chǎn)生較大的沖擊電流无吗黄片免费视频，給大功率發(fā)射系統(tǒng)帶來(lái)較大困難日韩欧美国产三级片；而且相位不連續(xù)也不利于保持正交脈沖間的正交性，不利于信息的正確解調(diào)一级二级黄色视。

Flow pattern computation is carried out by using a modified function of stream function Laplace equation proposed by the author, and the flow fields of heterogeneous goafs with complicated shapes and along the boundary direction can meet the condition of orthogonality of flow net, and at the same time the orthogonality can be controlled by the precision of split meshes.

指出用 流函數(shù)Laplace方程修正函數(shù)囯产免费看黄色视频，對(duì)復(fù)雜形狀和沿多邊界方向非均質(zhì)的采空區(qū)流場(chǎng)計(jì)算，仍能滿足流網(wǎng)正交AV人妻精品无码一区，其正交性可通過(guò)剖分網(wǎng)格精度來(lái)控制美国无码在线。