Operation parameters were examined when the discontinuous and continuous sample introduction systems with carrier gas N2 and continuous sample introduction system with carrier gas CO2 were used. 考察了当采用N2为载气蠕动泵断续、连续进样和发生CO2为载气连续进样时,各实验参数的影响及方法的分析性能。
Multiplex Transmission of Chirp Signals and Continuous Carrier Signals Chirp信号与连续载波信号的多路复用传输
The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched28MHZ are continuous carrier amplitude. 该遥控装置采用晶体稳频脉冲调幅发射机,电路较简单,频率稳定度高,发射的是间断的28MHZ等幅载波。
The paper introduced a continuous mild gasification industry simulate test, that takes brown semi-coke as heat carrier for the fluid bed operation. 介绍了云南昭通褐煤采用流化床技术,用褐煤半焦作热载体的连续温和气化工业性模拟试验。
Conclusion GLP-1 can be encapsulated in injectable microspheres to yield one-month continuous release when using biodegradable polymers PLGA as carrier material, and this technique will have a favorable perspective in the near future. 结论用可生物降解的聚合物PLGA作为载体材料,可以将GLP-1制备成缓释1个月的注射微球。
After the Early Cretaceous, the basin continuous subsided, and the source rock turned mature and expelled the hydrocarbon. Therefore, the fan delta sandstone and conglomerate stone mass linked to the hydrocarbon served as the petroleum carrier bed. 早白垩世以后,盆地持续沉降,烃源岩成熟并排烃,与烃源岩沟通的扇三角洲砂-砾岩体构成了油气输导层。
Continuous ethanol fermentation using tapioca starch by immobilized yeast cell without carrier 无载体固定化酵母细胞木薯淀粉质原料酒精连续发酵研究
Owing to the complexity of the ingredients of the frequency spectrum of FSK signals, which contain the continuous spectrum introduced by the baseband signal and discrete spectrum introduced by the carrier signal, it is difficult to accurately measure the frequency ingredients of FSK. FSK信号的频谱成分比较复杂,包含基带信号引入的连续谱和载波信号引入的离散谱两部分,传统的信号处理方法难以准确测量。
When binary phase coded continuous waveforms are to be detected under carrier Doppler, we may employ the method in which the signal is successively IF integrated, envelop detected and video integrated. 载波多普勒下的二相编码连续波信号可以采用检波前中频积累加检波后视频积累的方法进行检测。
An alcoholic continuous fermentation using cassava as material, and by immobilization of glucoamylase preparation and yeasts using polyvinyl alcohol ( PVA) gel as the carrier was studied. 采用聚乙烯醇(PVA)为载体共固定化酵母菌细胞和糖化酶制剂,并以木薯为原料进行酒精连续发酵工艺研究。
The frequency synthesizer using Direct Digital Synthesis ( DDS), it has the advantage of high frequency resolution, wide frequency range, fast conversion rate and continuous phase, so it easily fulfill the requirement of hopping carrier. 其中频率合成器采用直接数字频率合成器(DDS),具有频率分辨率高、频率范围宽、转换速率快和相位连续等优点,可很好的完成跳频载波要求。
With the prosperity of the network and the continuous development of communication technology, multimedia is increasingly becoming an important information carrier. 随着网络的繁荣和通信技术不断发展,多媒体日益成为一种重要的信息载体。
At the same time, the servants or agents of carrier, continuous transport carrier, the contracting carrier, and the actual carrier could all be the defendant in the international air cargo transportation disputes. 同时,本节论证了一般航空运输的承运人,承运人受雇人、代理人,连续运输承运人,缔约承运人、实际承运人均可能在国际航空货物运输案件具有被告适格。
In recent years, with the continuous expansion of cultural and creative, virtual space travel has been widely welcomed. The space seat as a carrier has the value of research and development. 近年来,随着文化创意的不断扩展,虚拟太空旅行受到人们的普遍欢迎,而太空座椅作为一种体验载体,有一定的研究和开发价值。
The characteristics of Chirp signal, such as wide bandwidth 、 continuous carrier, bring up higher demands and challenges for its detection. Chirp-UWB信号大带宽、连续载波的特性使其检测面临更高的要求和挑战。
In recent years, with the Continuous development of internet, the network has become a hot advertising carrier; the rapid development of Network advertisement has brought infinite business opportunities for advertisers and Websites. 近年来,随着Internet的不断发展,网络成为了广告炙手可热的载体,网络广告的迅猛发展为广告主和互联网站带来了无限的商机。
Various scattering factors are taken as the perturbation on the transition from the confining state to the continuous state for the trapping carrier. 在粒子从束缚态,跃迁到限制外的连续态过程中,有各种各样的影响因素。
It is used primarily because continuous phase modulation has good spectral efficiency for a noncoherent modulation technique. Furthermore, CPM is typically implemented as a constant-envelope waveform, i.e. the transmitted carrier power is constant. 连续相位调制(CPM)是一类包络恒定、相位连续的数字调制技术,它具有很高的带宽和功率利用率。