混頻管 的英文怎麼說
中文拼音 [húnbīnguǎn]
混頻管
英文
frequency mixer tube-
The system is composed with concrete filled cold - formed square steel tube column, the beam with two cold formed c type steel welded together back to back, the slab with profiled - steel and concrete, the beam and the slab joined into composite steel - concrete beam. they all together make up of the bearing members. and the house also includes the light economical - energy sources heatproof walls
該體系是以冷彎薄壁方鋼管混凝土為柱、冷彎薄壁c型鋼背靠背高頻焊接組成工字型梁、壓型鋼板上現澆築混凝土組成組合樓板並與梁一起構成組合梁作為承重構件，以輕質節能保溫型墻體作為圍護結構組成。Utilizing dual - gate mosfet as mixer in phase laser range finder
雙柵場效應管混頻器在相位法激光測距中的應用This paper studies the mechanism generated from flow - noise in seawater pipeline, introduces controlling method of flow - noise, analyzes sound field characteristics of flow - noise in seawater pipeline system and the merits and demerits of measuring the flow - noise methods in and out of the pipeline. in our experiment, a test measuring device of seawater muffler is used in a measuring chamberlet to verify that a method of reverberation chamberlet is difficult to exactly measure the low frequency flow - noise in pipeline. at the same time the insertion lose of water muffler in the low frequency was measured by the measuring chamberlet method
本文分析了海水管路系統內流噪聲的產生機理，介紹了流噪聲的控制方法；分析了海水管路系統中流噪聲的聲場特性以及流噪聲管內、管外測量方法的優缺點；通過海水消聲器試驗測量臺架，利用測量小室驗證了混響箱法難以準確測量海水管路系統中的低頻流噪聲；用測量小室對水消聲器在低頻段的插入損失進行了測量。Theoretical description of four - wave mixing of femtosecond pulses in gas - filled capillary
充氣毛細管中飛秒激光四波混頻的理論描述Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system
首先在流變學原理的基礎上，深入分析混凝土在輸送管道內的流動狀態，得出混凝土泵的負載特性方程；然後根據功率鍵合圖的建模方法，建立泵送迴路和分配迴路的數學模型，並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬，分析了在不同的輸入流量（泵送頻率）和換向時間下，活塞桿的位移和系統的液壓沖擊情況，找到了引起液壓沖擊的根本原因（即分配迴路的響應時間（固定值）與活塞桿的運動時間（變化值）不相匹配） ，並提出了相應的改進方法。It also gives the motive of the ka - band vco and mixer, associated with the subject ' s requirement and the realistic conditions, according to which a proposal is confirmed that the gunn diode and the varactor are mounted in the same cavity to fulfill the vco and an antiparallel diode pair is used to fulfill the harmonic mixer. in chapter 2, based on the basic theory of negative resistance oscillating, we analyses the gunn oscillator and it ’ s tuning character. chapter 3 introduces the theory of millimeter - wave harmonic mixer
以此為根據結合課題需要和實驗室的實際條件，確定vco採用耿氏管腔體振蕩器形式，變容管與耿氏管安裝在同一個腔內以進一步減小體積，採用反向並聯二極體實現諧波混頻;第二章介紹負阻振蕩器理論及其調諧原理;第三章介紹毫米波諧波混頻器基本原理;第四章給出了振蕩器及諧波混頻器的設計過程，整個組件聯調的結果;最後是結束語，分析了電路中存在的問題，指出了改進方向。The " expanding in frequency domain " theory is put forward and validated, and the chaos theory and the fractal theory is applied to the detection and diagnosis of boiler tube leak, the separation between the useful signal and noise and some of problems existed in the present boiler tube leak detection are solved
提出了「頻域拓展」的概念，並對這一方法的正確性進行了驗證。將混沌與分形理論引入鍋爐爐管泄漏檢測與診斷中，完成了爐管泄漏聲信號的信、噪分離，解決了目前爐管泄漏檢測系統所存在的一些問題。Secondly, we present the set of nonlinear partial differential equations that describes the wave - particle interaction, by analyzing the output power spectrum, the limit cycle and chaotic oscillation of the radiation field in the traveling wave tube ( twt ) amplifier and the magnetically insulated transmission line oscillator ( milo ) are studied numerically, respectively
接著，在論文的第三章和第四章我們從導出了一組用於描述場和電子相互作用的非線性偏微分耦合方程組開始，利用頻譜分析法，以行波管（ twt ）放大器和磁絕緣傳輸線振蕩器（ milo ）為例，數值研究了o型器件和m型器件中場的極限環振蕩和混沌行為。According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals
本文提出了一種基於dsp （數字信號處理器tms320f240 ）的通用的三相間接變頻電源系統，利用分段同步調製法和混合查表法，實時計算不同頻率下的采樣周期、電壓幅值、輸出脈寬，產生雙極性spwm波形，經驅動放大後用于ipm （ intelligentpowermodule ）中的絕緣柵雙極型晶體管柵級驅動，以控制電源的輸出電壓和頻率，實現變頻電源的智能數字控制。Near several years, the lawsuit was continuously perplexing to register the one catastrophe topic of cpa ' s trade, and especially supervising enlarging of dynamics along with verifying the certificate audit vocational work, more and more cpas arc frequently pushed the defendant ' s scat by the quilt, are asked to undertake administration, economy and even criminal responsibility, no doubt among them has one side of cpas " delinquency, but the different views of the concerned department and the society public to cpa audit law duty, as well as the deviation and confusion from these is taking the very important effect, too
近幾年來，法律訴訟一直是困擾著注冊會計師行業的一大難題，特別是隨著對證券審計業務監管力度的加大，越來越多的注冊會計師們被頻繁地推上被告席，被要求承擔行政、經濟乃至刑事責任，其中固然有注冊會計師失職的一而，但有關部門和社會公眾對注冊會計師審計工作應承擔的法律責任的性質的不同看法，以及由此引起的相關法律規定的偏差和混亂也在其中起著不可忽視的作用。This paper also presents a conference management pattern without mcu, making control and data separate. in order to enhance the bandwidth utilization factor, a multi - channel based transfer method, unicast plus multicast, is brought forward. in the end of this dissertation, we presents implementation methods, which guarantee the continuity and synchronization of video and audio when playbacking
提出了一種無mcu的會議管理模式，實現了控制與數據的分離，所有的音頻混合及視頻切換功能均由客戶端計算機完成；提出了一種基於多通道的「單播+組播」傳輸方式，提高了系統的帶寬利用率；並給出保證視頻、音頻回放的連續性、同步性的實現方法。分享友人