查询词典 frequency bandwidth

Millimeter wave circularly polarized microstrip antenna has the advantage of low profile,simple configuration,but commonly it has narrow impedance bandwidth and axial ratio bandwidth.

毫米波圆极化微带天线具有体积小、结构简单等优点，但是同时也存在阻抗带宽和轴比带宽相对较小的缺点。

A method form obtaining IP address of maintenance channel includes judging whether ATM address is included in preconfigured IPOA PVC data of base station controller or not by BSC according to ATM address in BOOTP request message, returning BOOTP response message back to base station if it is or otherwise returning failure message back to BOOTP, carrying out judgment on each parameter in BOOTP response message by BS as per preset parameter rule, utilizing all parameters to set up IPOA channel when all parameters are consistency with said rule and required transmission bandwidth of IPOA channel is less than bandwidth limitation of maximum transmission.

本发明提供一种维护通道IP地址的获取方法以及修改方法，包括：在基站控制器侧预先配置基站的维护通道IPOA PVC数据，该IPOA PVC数据包括该基站的ATM地址；该基站在专用的PVC上发送BOOTP请求消息，该BOOTP请求消息中包括该基站的ATM地址，并且同时启动超时定时器对第一时间间隔计时；基站控制器根据该BOOTP请求消息中的ATM地址，判断基站控制器中预先配置的IPOA PVC数据中是否包括该ATM地址，若包括，则向该基站返回BOOTP响应消息，该BOOTP响应消息包括关于维护通道IP地址的参数，否则返回BOOTP失败消息；基站根据预定参数规则，对该BOOTP响应消息中的每一参数进行判断，在所有参数符合预定参数规则、且建立该IPOA通道所需传输带宽小于最大传输带宽限制的情况下，利用该所有参数建立IPOA通道。

According to the requirement of bandwidth of the electric power information network, an approach is proposed to estimate the bandwidth based on queuing theory and quality of service.

在此基础上，结合电力信息网络对网络带宽的要求，提出了基于排队论和服务质量的网络带宽估算方法，并以IP电话为例，给出了详细的计算过程。

Finally, We analyze and experimentally demonstrate that both the bandwidth of the fiber Bragg grating's short wavelength loss and the bandwidth of fiber Bragg grating's reflection increase with the increase of strain gradient along the length of grating.

最后，我们对光纤光栅的反射和短波损耗的应变特性作了理论分析和实验测试，发现在光纤光栅的反射带宽随光栅轴向应变梯度的增加而增加的同时，光栅短波损耗带宽也随光栅轴向应变梯度的增加而增加。

So chirped fiber gratings have broad reflection bandwidth. The group delay in chirped fiber grating reflection bandwidth changes gradually. These properties are what other type fiber gratings do not have.

所以chirped光纤光栅具有宽的反射带宽，在反射带宽内具有渐变的群时延等其它类型的光纤光栅所不具备的特点。

By the analysis to the order features of the nodes when the network bandwidth is the minimum value,we can induce three regulars.Testing a large number of examples,which show that the presented scheme can reduce bandwidth for arbitrary mesh by renumbering...

结果表明，对于任意划分的有限元网格，利用该方法对节点重新编号，可得到较小的半带宽值，节省了计算机的内存空间，提高了计算效率。

In the paper, an optimal method for node labels in the finite element is presented, which is an inductive and deductive method. By the analysis to the order features of the nodes when the network bandwidth is the minimum value, we can induce three regulars. Testing a large number of examples, which show that the presented scheme can reduce bandwidth for arbitrary mesh by renumbering the nodes, proves the correctness and reliability of the regulars. Thus the memory of computer is saved and the compute efficiency is improved.

通过对在网格半带宽最小时的节点排列的一些特征进行分析，从其中归纳出三条规律，通过大量的算例来验证该规律的正确性和可靠性，结果表明，对于任意划分的有限元网格，利用该方法对节点重新编号，可得到较小的半带宽值，节省了计算机的内存空间，提高了计算效率。

Although at present the bandwidth of 6 nets measures cruel to belong to the 2nd echelon formation inside the industry, but after a series of act that purchase bandwidth, 6 nets hopeful and actor cruel mix cruel to compare a shoulder tomato patch.

尽管目前酷6网的带宽量在行业内属于第二梯队，但在一系列购置带宽的举措后，酷6网有望与优酷和土豆比肩。

We want to play an enormous bandwidth and for such a spectrum , we don't need only one sound , but a full bandwidth of sounds.

我们要演奏多种多样的曲目，需要多种多样的音色，而不是单一的一种。

The call admission control algorithms in WiMAX only use the bandwidth as the judging standards of admission.A call admission control algorithm based on bandwidth and Signal to Interference Noise Ratio is proposed.

针对现有基于WiMAX的接纳控制算法仅考虑了带宽作为接纳控制的标准，提出一种结合带宽和信噪比的接纳控制算法，在考虑小区带宽因素的同时能兼顾考虑接纳后业务的信噪比情况。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。