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pcf. 基本例句 abbr.pounds per cubic foot 磅/立方英尺 For coordination functions of DCF, EDCA, PCF and HCF, the thesis proposes corresponding methods to reduce overhear, which is the greatest source of energy loss for802.11PSM. 意外侦听是802.11 PSM的能量浪费的主要原因,本文针对 DCF、 EDCA、 PCF和 HCF等不同协调方式提出了减少意外侦听的策略。 cnki In WLAN, there are two scheduling functions, the point coordination function PCF and hybrid coordination function controlled channel access HCCA. 局域网的调度接入方式有点协调方式 PCF和混合控制接入方式 HCCA两种。 fabiao The SC wavelength tunable property in the random PCF can provide a novel answer to optical parameter oscillator and tunable laser. 气孔随机分布的 PCF波长可调谐的特性可能为光参童振荡器和可调谐激光器的设计提供新的途径; cnki The normalized propagation constant, which determines the number of the modes and mode cutoff is obtained for a PCF: with a certain structure parameters. 对于给定结构的 PCF,计算得到了决定模式数量及模式截止的归一化传播常数。 dictall The phase- locking of two photonic crystal fiber PCF lasers is studied experimentally by using Michelson cavity technique, and47 W coherent output power is obtained. 利用迈氏腔技术,进行了光子晶体光纤 PCF激光器相干合成的实验研究,实现了两光子晶体光纤激光器的相位锁定,获得了功率为47 W的相干输出。 dictall The photonic crystal fiber PCF has a lot of peculiar features and broad prospects of application. 光子晶体光纤 PCF有着许多奇异的特点和广泛的应用前景。 dictall The photonic crystal fiber PCF with a special envelop structure induces the light by photonic bandgap PBG effect. 光子晶体光纤 PCF是一种具有特殊包层结构的光纤,它是利用光子禁带效应 PBG来导光的。 dictall The principle, fabrication and application progress of hollow-core photonic crystal fibers HC- PCF are reviewed. 综述了空芯光子晶体光纤 HC- PCF的原理、制作方法和最新应用进展。 cnki The propagation properties of photonic crystal fibers PCF are discussed with effective- index model. 应用等效折射率模型研究了光子晶体光纤 PCF的传播特性。 cnki A novel high birefringence photonic crystal fiber PCF was proposed. 设计了一种新型的高双折射光子晶体光纤 PCF。 cnki Basing on scalar approximation the dispersion property of photonic crystal fibers PCF with lower air filling fraction are investigated by an effective index approach in this paper. 基于标量近似理论利用有效折射率方法对低空气填充率的光子晶体光纤 PCF的色散特性进行了数值模拟。 cnki Beam coherent combination of two photonic crystal fiber PCF lasers is experimentally studied by using self- imaging resonator technique, and phase- locking of the two PCF lasers is achieved. 利用自成像腔技术进行光子晶体光纤 PCF激光器光束相干合成的实验研究,实现了两光子晶体光纤激光器的相位锁定。 dictall Compared with common single mode fiber, the small core PCF has higher non-linear coefficient and larger Brillouin gain, and is suitable for the gain medium of Brillouin fiber laser. 与普通单模光纤相比,小纤芯 PCF具有非线性效应强、布里渊增益大的特点,适合作为布里渊光纤激光器的增益介质。 cnki For example, the addition of Message descriptor extension MQMDE starting with V5, and Embedded PCF header MQEPH starting with V6. 例如,从 V5开始添加了消息描述符扩展 MQMDE,从 V6开始添加了嵌入式 PCF头 MQEPH。 ibm Photonic crystal fiber PCF has more excellent properties than common fiber, such as single mode, dispersion and nonlinearity. 光子晶体光纤 PCF与普通光纤相比有着优秀的单模特性、色散特性和非线性特性。 cnki Quite simply: all of us at PCF are drawn to the project because of the mission. 答案很简单:所有在 PCF的我们因为使命而被吸引到这个项目来。 launchpad Set this key to the command used to create thumbnails for PCF fonts. 将此键设为可为 PCF字体创建缩略图的命令。 launchpad The paper described Fe foam produced by a Powder- Compact Foaming PCF process. 本文研究的是粉体致密化发泡法 PCF制备铁基泡沫工艺。 cnki The result shows that the big effective area of PCF used in transmitting the high power and manufacturing fiber-optic laser can be designed by changing the PCF structure parameter. 结果表明:通过调节 PCF的结构参量,可以设计大有效面积 PCF,用于高功率传输和制作光纤激光器; cnki Using this method, PCF can automatically fulfill the requirements of crack-controlling, and unifies the calculating method of the quantity of prestressed tendons under different crack-controlling. PCF采用了该方法,能根据结构的使用性能要求,主动进行抗裂设计,并对不同抗裂等级构件取得了统一的计算方法。 cnki We found that PCF performs relative good with light load, which means a small number of real-time connections and not too much contention nodes with best effort traffic. 我们发现在网络轻载时,也就是说实时连接很少,竞争信道的非实时节点也不多时, PCF表现很好。 cnki |