频率

Physical model of computer box is established and through analyzing the changing curves of change of electromagnetic field with time and change of coupling coefficient with frequency, the coupling regulation of electromagnetic on computer box is obtained. It is as follows: electromagnetic pulse has a great effect on components of computer box through apertures and slots, the coupling energy in the box increases first and then decreases. The existence of components decreases the shielding effectiveness and resonant frequency.

建立计算机机箱的物理模型，通过分析机箱内的电磁场随时间的变化曲线和耦合系数随频率的变化曲线，得到电磁脉冲对计算机机箱的耦合规律：电磁脉冲可以通过孔缝进入机箱内部，对机箱内元件的瞬间影响较大；机箱内的耦合能量是先增加后减小；元件的存在使得机箱的屏蔽效能降低，谐振频率下降。

The simulation results indicate that adjusting pump power properly can control transient effect, and increasing modulation frequency can weaken cross modulation, and decreasing frequency chirp of LD or enhancing the input power of signals can improve intermodulation distortion.

仿真结果表明，调整泵浦功率值可抑制瞬态效应，提高调制频率可使串话减弱，减小激光器的频率啁啾或增大EDFA的输入光功率都可改善IM2。

The working frequency: frequency of demanding action, the structure should be optimized direct-acting solenoid valve, the power to listen to the exchange preferred.

工作频率：动作频率要求高时，结构应优选直动式电磁阀，电源听优选交流。

The working frequency: frequency of demanding action, the structure should be optimized direct-acting solenoid valve, the power to listen to the exchange preferred.

三、事情频率：动作频率要求高时，布局应优选直动式电磁阀，电源听优选交流。

The one little quirk is the Channel Switch is above the Volume/Squelch and when changing frequencies, you cover the display with your hand.

一个小毛病就是：就在音量/静噪旋钮上面的频道转换旋钮，当你改变频率的时候，你就用手挡住了频率的显示。

A novel microemulsion was prepared to increase the solubility and enhace the in vitro transdermal delivery of OXA. For the microemulsions, types of oil phase, surfactants, cosurfactant were chosen and the double-distilled water was purified as water phase.

奥沙普秦玻璃酸钠凝胶的流变学实验结果显示，药物玻璃酸钠凝胶具有假塑性流体特性，在低剪切频率时具有较高的黏度，而在高剪切频率时具有较低的黏度，有利于制剂在皮肤表面的涂布和黏附。

They are mainly: the probe-fed square patch antenna with shorting pins,and the probe-fed rectangular patch antenna with a pair of wide slits (E-shaped patch). The analyses were carried out using method of moments software package. It is shown that the probe-fed square patch antenna can be made resonate at three different frequencies of 1.83 GHz,2.16 GHz and 2.74 GHz respect...

同时，采用基于MOM的软件包分析了天线性能，证明方形天线可以工作在3个频率点，即1.83GHz、2.16GHz和2.74GHz，其最大的增益达到9.4dB；E形天线工作在2.13GHz和2.5GHz，当中心频率为2.4GHz时，带宽达到33.33%(反射损耗≤-10dB)，其最大增益为9.25dB。

Polymorphisms in ESRa gene and association with egg production traits The SSCP detection of 5" flanking regulation region and intronl in ESRa gene showed that two genotypes were detected in 5"flanking regulation region of blue eggshell chicken.

ESRa基因多态性与产蛋性状关系 ESRa基因5侧翼调控区和内含子1区经PCR-SSCP检测，发现绿壳蛋鸡5例翼调控区有两种基因型，两等位基因C的频率为0.86，D的频率为0.14。

According to shearing deformation principle of continual elastic support, this paper analysis the natural frequency of the single-layer workshop roof system.

摘要提出按连续弹性支座剪切变形原理分析单层厂房屋盖体系自振频率，介绍不同类型的支座对屋盖自振频率的影响，并采取有效措施，避免厂房引起共振。

Finite element method is based on the actual ship models, a true reflection of the real ship distribution of the specific structure. This paper also uses empirical formula to calculate the inherent frequency of the catamaran; contrast them in the process of modeling the structural stiffness, and quality of the different treatments, as well as natural frequency calculated from the results of differences analyze the different and the reason between the finite method and the empirical formula method which used to calculate the inherent frequency of catamarans in the vibration analysis.

有限元方法是根据实际船型，较真实的反映了实船结构的具体分布特征；本文还采用经验公式对该船的固有频率进行了计算，对比它们在建模过程中对结构刚度、质量的不同处理，以及计算所得固有频率结果的差异，分析了在双体船振动特性分析中有限元法与经验公式法的结果略有差距及其原因。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。