查询词典 angular

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。

The morphologic change of muscle fibers: At the early stage of denervation, the area of cross sections decreased, some muscle fibers turned into angular fibers, nuclei congregated around the center of the fibers. After 8 weeks of denervation, atrophic and hypertrophic fibers coexist. Collagen increases under the endomysium and between the fibers.

肌纤维的组织形态学变化：面部肌肉失神经支配早期，肌纤维的横截面面积变小，出现角状纤维，肌细胞核聚集，细胞核从肌纤维边缘移至肌纤维中央附近；失神经支配后期，肿胀与萎缩的肌纤维并存，肿胀的肌纤维的横截面成倍大于正常的肌纤维，而萎缩的肌纤维的横截面则成倍小于正常的肌纤维；有大量的角纤维存在，肌纤维之间有较多的结缔组织增生。

Study on the control of powdery mildew caused by "Erysiphe cichoracearum" and bacterial angular leaf spot caused by "Pseudomonas cachrymans" on melon by the systemic resistance inducer benzothiadiazole was carried out.

在大田中连续两年使用植物抗病性诱导剂BTH（100μg/mL和50μg/mL），并在皇后和早金甜瓜三个不同生长期施用，结果表明，BTH（100μg/mL和50μg/mL）对甜瓜的诱导处理，都能有效的抑制甜瓜白粉病和细菌性角斑病。

Stems angular, glabrous. Radical leaves: stipules brown, membranous, abaxially glabrous; petiole glabrous; leaf blade with 7–9 pairs of leaflets; leaflets petiolulate, green on both surfaces, fasciated or fasciated lanceolate, 5–7 × 1.5–1.7 cm, both surfaces glabrous, base subcordate to obliquely truncate or rounded, margin acutely incised serrate, apex rounded to acute; cauline leaves: stipules green, falcate, herbaceous, margin incised serrate; leaf blade resembling that of radical leaves but leaflets fewer and narrower higher up stem.

茎具角，无毛；胚根叶：托叶使成褐色，膜，背面无毛；叶柄无毛；叶片具7-9对小叶；具小叶柄的小叶，绿色在两面，扁化或者扁化， 5-7 * 1.5-1.7 厘米，两面无毛，基部近心形在斜截形或圆形，边缘尖锐锐裂状锯齿，先端圆形的到锐尖；茎生叶托叶绿色，镰刀形，草本，给锐裂状锯齿镶边；叶片象胚根叶的那但是高的更少和狭窄的小叶向上茎。

Moreover we formulize the optimal path according to the theory of B-spline Curve, so the path which is composed by the grid point can transform into a continuous and smooth curve. By formulizing path we can also calculate angular velocity, angle acceleration, and torque in dynamics.

另外我们根据B-spline Curve的理论将最佳路径参数化，使由格点所组成的最佳路径转换为一条连续且平滑的曲线，藉此我们也可以计算动力学中的瞬间角速度、角加速度与力矩。

The angular frangible girl is entangled in intangible triangle love.

骨瘦如柴的脆弱女孩被无形的三角恋爱缠住。

The angular frangible girl is entangled in intangible triangle love.

骨瘦如柴的脆弱女刚出生的孩子被无形的三角恋爱缠住。

The angular frangible girl is entangled in intangible triangle love.

骨瘦如柴的脆弱女宝宝被无形的三角恋爱缠住。

The angular frangible girl is entangled in intangible triangle love.

骨瘦如柴的脆弱小姑娘被无形的三角恋爱缠住。

Angular measurement : Female showed more flat frontonasal area and mandibular sulcus contour angle than male.

角度测量方面：女性之前额与鼻骨之间较为平坦，而男性则较为凹陷；男性由下唇至骸部转折较女性明显；男性鼻较前突。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。