非对称的

Firstly the Pauli decomposition is used to separate both the symmetric part and antisymmetric part of a multi-look image, then the Krogager decomposition is applied to extract the polarimetric feature of the symmetric image, at last an AdaBoost classifier is adopted to improve the classification performance.

首先利用Pauli分解分离出多视复图像数据的对称部分和非对称部分，然后利用Krogager分解提取出对称部分的极化特征，最后利用AdaBoost算法对所提取的极化特征进行分类。

The results show that, when the computational error and its accumulation are eliminated effectively, the laminar flow in OFR with perfect-symmetric boundaries behaves in a pattern of central symmetry and circumferential uniformity while the turbulent flow field presents a centrally symmetric and circumferentially non-uniform structure with 8 transverse vortices arrayed circumferentially in a way of central symmetry, similar to Taylor vortices in Couette flow.

模拟结果表明在有效消除计算随机误差以及误差积累的情况下，几何边界理想对称OFR内的三维层流流场呈现出良好的中心对称性和周向均匀性，而湍流流场中心对称的同时呈现出周向非均匀结构－在圆周上生成8个中心对称排列的横向漩涡，其形态与Couette流中的泰勒涡类似。

Based on Stahl (1988), this paper extends symmetric model in duopoly in Spulber (2002), analyzes the asymmetric model of competition with both different inputs and outputs, and examines in detail the impact of differential parameter of supply and demand on competition.

本文以Stahl(1988)为基础，将斯普尔伯(2002)对称的双寡头垄断中间化对称模型进行扩展，分析了投入品与产出品都不同的非对称寡头竞争模型，并详细考察了供给、需求差异化参数对竞争的影响。

The C-band magnetically insulated transmission line oscillator has teen simulated by the three dimensional PIC code in order to study the influence of non symmetry excitation mechanisms on its output modes. It is found that the non symmetry excitation mechanisms, such as random emitting of cathode electron anti the long rise tunic and low magnitude of input voltage, could product higher order modes and reduce output power.

为理解磁绝缘线振荡器实验中频频出现的模式竞争问题，利用3维全电磁粒子模拟程序对C波段MILO的实验模型进行研究，探索各种非对称激励机制对产生微波模式的影响，结果显示：阴极电子随机发射、电压的慢上升前沿、较低的电压等因素都可导致非对称高阶模式的产生，并使输出微波功率大大降低。

The aim of this contribution is to draw a general perspective of the liveness and safeness for Asymmetric Choice nets.

文章讨论了活性具有单调性的非对称选择网活性与安全性的条件，并给出一个多项式时间算法来判定一个给定的非对称选择网是否是活的、安全的与活性满足单调性。

For generalization, we present the measurements under symmetrically and unsymmetrically air-supplying conditions, respectively.

为验证结果的合理性与正确性，用风速计直接测量了对称条件下的速度场，用CFD软件对对称和非对称情况分别进行了流场模拟。

In the Infrared spectrum of complexes, there are strong absorptions in ~1 660 cm-1 which can be ascribed to the antisymmetric vibration of the O -C -O unit in heterometallic multinuclear complexes. The different dates of antisymmetric stretching vibration of ox present two modes.

在红外光谱中，杂多核配合物在～800 c~(-1)有强的O—C—O反对称伸缩振动吸收，根据草酸根表现的非对称伸缩振动、对称伸缩振动的数值，判断出它们有两种不同的配位方式。

In the symmetrical encryption system aspect, discussed the des algorithm with emphasis, has given it in the key management, the safe application aspect exists question; the problem which in the asymmetrical encryption system aspect, studies in with emphasis which rsa and the application has the question, the ecc merit and should pay attention and so on.through the quite symmetrical key encryption system and the public key encryption system good and bad points,summarize should use the mix key encryption system in the electronic commerce, both guarantee data security, and may enhance encrypts and deciphers the speed.

在对称加密体制方面，重点讨论了des 算法，给出了其在密钥管理、安全应用方面存在的问题；在非对称加密体制方面，重点研究rsa及其应用中存在的问题、ecc的优点及应注意的问题等。通过比较对称密钥加密体制和公开密钥加密体制的优缺点，总结出在电子商务中应采用混合密钥加密体制，既保证数据安全，又可提高加密和解密速度。

So to find a good lower bound is an very important issue in the theory of uniform designs.The present paper aims at obtaining some new lower bounds for the symmetric L_2-discrepancy on some kind of symmetric factorials and asymmetric factorials.

在本文中我们针对某些类型的对称和非对称因子设计得到了对称化L_2—偏差的新的下界，利用这些下界我们不仅可以衡量给定设计的均匀性程度，还可以帮助我们构造均匀设计。

The knock-down of the three LjCYC genes gives rise to the ventralized identity to all petals, which are keeled shape, resulting in a floral transformation from a zygomorphy to an asymmetry, indicating that the asymmetry floral pattern could be a ground stage before LjCYC1, LjCYC2 and LjCYC3 being recruited in the control of floral asymmetrical development in Lotus japonicus.

本实验得到了LjCYC1、LjCYC2和LjCYC3表达均下调的转基因株系L1+2Ri/kew1，该植株所有花瓣呈现腹部属性，出现了花瓣形态全是龙骨瓣状的非对称花瓣，花型也从两侧对称转化为无对称面；这种花型表明，在LjCYC1、LjCYC2和LjCYC3等三个基因全失活的情况下，龙骨瓣状花瓣应该是一个基准状态。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失