在传播中

Netizen morality sense of responsibility hiatus appears on meeting , value chooses to problem such as warping , morality abepithymia but, under relatively free network circumstances, in propagation process individuation in go after,existence that can treat law with indifference, encroaches on others's various lawful rights and interests furthermore.

然而，在相对自由的网络情境下，在追求个性化的传播过程中，网民会出现道德责任感缺失、价值取向扭曲、道德情感淡漠等问题，更有甚者会漠视法律的存在，侵害他人的各种合法权益。

Netizen morality sense of responsibility hiatus appears on meeting , value chooses to problem such as warping , morality abepithymia , the existence treating a law with indifference even but, under relatively free network circumstances, in propagation process individuation in go after.

然而，在相对自由的网络情境下，在追求个性化的传播过程中，网民会出现道德责任感缺失、价值取向扭曲、道德情感淡漠等问题，甚至漠视法律的存在。

Therefore,it is necessary for us to describe the acception history of Atwood in China,in order to analyze the filtration of the different cultural features in different periods now.

在这样的情况下，运用比较文学的方法分析国内阿特伍德接受的成就和不足，并以此为例来探寻、求证大的文化背景在文学传播过程中的过滤作用就变得很有必要了。

Over the years for the corporate image in the case of design, Bothway has a number of enterprises for business in both English and Chinese name, we named both for the enterprise to consider its identification and dissemination of sector-specific, and will also consider the name of the good and bad math.

在历年企业形象设计的案例中，博世为曾为多家企业进行中英文名称命名，我们在为企业或品牌名称命名时既考虑其行业特性和传播识别性，也会考虑名称数理的吉凶。

The design of transplanter for rice growing in cupulate tray is the critical link in rice growing in cupulate tray technology,the design method is not mature,for exploring a new design method,having discussed neural network s serviceability in agriculture machinery mechanism design with the theoretical basis of self-organizing feature mapand the back-propagation network,the integrated SOM-BP nerve network model is applied in the field of transplanter s critical mechanism design for rice growing,al...

水稻钵育栽植机的设计是实现水稻钵育栽培技术的关键环节，区别于传统的水稻栽植机其关键部件的设计方法还不成熟，在理论研究方面还不完善。为探索新的设计方法，论述了神经网络算法对农业机械设计的适用性，以自组织特征映射网络SOM 和误差反向传播网络BP为理论基础，将SOM-BP集成神经网络模型应用于水稻钵育栽植机关键部件设计领域，建立神经网络模型，通过集成网络训练，得到设计结果。验证了SOM-BP神经网络在农业机械机设计中的正确性和精确性。

By time-varying filtering, we realize the signal selectivity and interference suppression, especially for the signals with time-varying power spectrum. It is shown herein that conventional eigenstructure based methods are lower dimensional special case of the time-frequency subspace fitting method. The closed-form array response estimation algorithms for blind source separation in wireless communication is also developed in the dissertation by exploiting the data structure of second-order statistics of the array output in the presence of multipath. The proposed method achieves array response estimation with little constraint on signal property and propagation environment such as scatters or angular spread. Moreover, the array utilized here can be of arbitrary geometry and even uncalibrated. Since the closed-form solution is obtained, no misconvergency may occur and large amount of computation can be saved. The equivalent feed model and corresponding optimization designation are proposed to realize the downlink multi-user selective transmission. By coherent and non-coherent superposition of the electromagnetical field, multiple beams can be formed using a single array, so that each co-channel user signal is transmitted in each beam and will not interfered with each other. The proposed system scheme implements the digital beamforming and the channel allocation in the base band, therefore is suitable for the utilization of the radio software technology. The feasibility and effectiveness of the proposed model are proved by the RF experiment.

在窄带条件下，GSC－SSF方法还可以提高阵列的虚拟孔径，从而提高估计的性能；可以证明，Cyclic DOA 和SC-SSF方法可看作该方法的特例或近似； 3、提出了二维GSC－SSF方法和宽带谱相关DOA矩阵方法，利用信号的循环平稳特性解决了宽带条件下二维 DOA 估计问题，并具有阵元数少、计算量较小的特点； 4、提出了时频子空间拟合和宽带时频DOA估计算法，将联合时频分析的理论和方法引入到阵列信号的空间谱估计研究中，利用时变滤波实现信号选择性测向和干扰抑制，特别适合于谱时变信号；可以证明传统特征结构法可看作是时频子空间拟合方法的特例； 5、提出了多用户环境下阵列响应的估计方法——CARE方法，该方法对信号结构和传播参数（主要是散射源分布与角度散布）的约束较少，适用于各种几何结构的阵列甚至未校准的阵列，能够直接得到阵列响应的闭式解，因此计算量小、稳健性好，不存在收敛问题； 6、提出了针对多用户下行选择性发送的阵列等效激励模型、优化设计方法及其系统实现方案，通过空间场的相干叠加与非相干叠加使得单一阵列能够形成多个波束，并保证各波束内的用户信号各不相同且相互干扰最小；其系统方案具有在基带实现数字波束成形、信道分配并便于软件无线电实现的特点，其有效性已得到外场实测数据的证实。

Cheng, Y. Mean-shift, Mode Seeking and Clustering. IEEE Trans. on Pattern Analysis and Machine Intelligence, Vol. 17, pp. 790, 1995.[2] Comaniciu D, Ramesh V, Meer P. Kernel-based Object Tracking. IEEE Trans. on Pattern Analysis and Machine Intelligence, Vol. 25, pp. 564-577, 2003.[3] Collins R, Liu Y and Leordeanu M. Online Selection of Discriminative Tracking Features. IEEE Trans. on Pattern Analysis and Machine Intelligence, Vol. 27, pp. 1631-1643, 2005.[4] Nummiaro K, Koller-Meier E and Gool L.V. An Adaptive Color-based Particle Filter.

本文针对MS跟踪和粒子滤波跟踪各自的优缺点，将其两者进行了很好地结合，提出了两步跟踪算法，其特点有：保留了MS跟踪实时性的优点的同时，也具有粒子滤波在遮挡情况下的鲁棒性等特点；在所需的每步粒子跟踪中，以上一步的跟踪结果与模板的相似度为先验知识，自适应地选取粒子个数和传播半径，缓解了粒子缺乏多样性的缺点，也根据这个相似度来判断是否需要对目标模板的更新，保证了更新的有效性。

Based on the Collins integral formula, the propagation of generalized hypergeometric beams in paraxial ABCD optical systems is studied and the analytical expressions for complex amplitude at output plane are obtained.

利用柯林积分公式研究了广义超几何光束在ABCD近轴光学系统中的传播行为，得到了光束在输出平面复振幅的解析表达式。

In real ocean channel, surface and water column is space-time variability that can' t be ignorable, and makes the sound wave propagated in it abnormal and fluctuant.

在实际的海洋信道中，界面与水体都存在不容忽视的空一时变异性，使得在其中传播的声波存在强烈的畸变和起伏。

HIV transmission correlates highly with HIV viral load of the infected partner, is most likely with receptive rather than insertive activities, and is 5-fold greater with receptive anal sex vs receptive vaginal sex.

HIV传播与HIV感染伴侣的病毒量高度相关，最有可能发生在性行为的接受方而不是插入方，在接受方感染几率中，肛交是阴交的5倍。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。