sws 中文意思是什麼
sws
解釋
波峰停頓-
This present paper is contributed to the study of the evolutionary nature of iso sws spectra from carbon - rich agb stars ( carbon stars ) and molecular and dust features around such carbon stars
本文主要致力於研究富碳agb星的isosws紅外光譜的演化和它的分子、塵埃特徵。 -
By using the iso sws spectra we have studied their physical nature including their molecular and dust features in the circumstellar envelope to make us understand the evolutionary status of carbon stars
這29顆sic碳星的isosws光譜能很好地反映碳星的演化，有助於我們了解碳星的演化及其分子、塵埃特徵。 -
In the first part of the paper, the explicit form of difference equation and periodic boundary condition is derived in cartesian coordinate system. secondly, the dispersive characteristic is analyzed in cylinder coordinate system for many high power microwave devices use cylinder sws. and then the method is extended to calculate the band structure of 2 - d photonic crystal, a modified yee ’ s grid is introduced to calculate the dispersive characteristic in the case of triangular lattice, so that both square lattice and triangular lattice cases can be solved in cartesian coordinate system
周期電磁結構的一個重要應用就是用作高功率微波器件中的慢波系統，考慮到目前大部分高功率微波器件的慢波系統多採用圓柱周期結構，在論文第四章中，在圓柱坐標系下，給出了差分方程和周期性邊界條件的具體形式，同時編寫程序，分析了milosws ，盤荷慢波結構的色散特性。 -
For the first time, the coaxial ridge - disk - loaded cylindrical waveguide as sws is presented. its dispersion equation and the expression of coupling impedance are given by application of the field matching method. a series of numerical results show that the influence of structure dimensions on the dispersion characteristics and interaction impendance
三、創造性地提出脊加載同軸膜片圓波導慢波結構，並對其採用嚴格的場匹配法，詳細推導了色散方程和耦合阻抗表達式，並得到一系列有關系統結構參量與色散和耦合阻抗之關系的數值模擬結果。 -
Owing to having the advantages of large size, good thermal conductivity, high precision of manufacturing and assembling, the all - metal slow - wave structures are widely used in the wide - band, high power traveling wave tube ( twt ) and relativistic twt. furthermore, the disc - loaded cylindrical waveguide is one of the most important slow - wave structures in the all - metal slow - wave structures ( sws )
全金屬慢波結構因其尺寸大、熱耗散能力強、整體性能好等優點被廣泛應用於寬帶、大功率行波管和相對論行波管中，而膜片加載慢波系統正是全金屬結構中最重要、應用最廣泛的一大類結構。 -
In this situation, folded groove guide sws is proposed and studied in this dissertation. 2
二、分別介紹了曲折波導慢波結構和槽波導傳輸線的研究方法和理論進展。 -
In this paper, a novel folded groove waveguide slow - wave structure is proposed with the foundation of folded waveguide and grooved guide. high frequency characteristics of such sws are also analyzed in this paper. the main works are listed as follows : 1
本論文以曲折波導慢波系統和槽波導傳輸線為基礎，綜合二者的優點和目前曲折波導在thz輻射振蕩器中遇到的問題，提出一種新型的曲折槽波導慢波系統的概念，並對這種新型慢波結構的高頻特性進行了詳細的研究。 -
The dispersion characteristics and interaction impedance of the groove guide sws are analyzed theoretically in detail. by use of matlab, numerical programs are compiled to get dispersion curves and impedance diagrams. the influence of geometrical dimensions on the dispersion characteristics and interaction impedance are discussed
三、對曲折槽波導慢波結構的色散特性和耦合阻抗進行了詳細的研究，色散方程的獲得是依照曲折波導慢波系統的分析方法，但耦合阻抗的計算公式是嚴格按照場論的方法得到的。 -
The energy will couple in the region of diode and decrease the output power, if there is no reflector placed in front of the sws at the end of beam injection
對于這種振蕩器如果在電子注輸入端沒有反射器，微波能量將耦合到二極體區，使輻射到空間的微波能量減少。 -
In order to decrease the energy of microwave that input diode and increase the output power of the device, a coaxial reflector is placed in front of the sws at the end of beam injection
為此我們提出採用同軸波導反射器，即在電子注的輸入端加反射器，減少進入二極體區的微波，以提高器件的微波輸出功率。 -
Kapds and krueger found that nos inhibitors reducing the production of no in the brain suppressed both slow wave sleep ( sws ) and rapid eye movement sleep ( rems ) in rats and rabbits, but no donors promoted their sws
在這一方面， kap s和krueger等人做了許多工作。他們發現，應用nos抑制劑減少腦內no的合成，能夠引起大鼠和家兔的睡眠抑制效應；應用no供體則延長動物的慢波睡眠。 -
Two cold - test parameters determine the working voltage, frequency band, efficiency and gain of twt. they are dispersion and interaction impedance of the slow - wave structures ( sws ) in twt, which are very important targets for twt
行波管慢波結構的色散和耦合阻抗是行波管設計中兩個非常重要的冷參量，它們決定了整支管子的工作電壓、頻帶寬度、工作效率和增益。 -
As the key component of the beam - wave interaction of a traveling wave tube ( twt ) for exciting microwave energy, the slow - wave structure ( sws ) basically determines the performance of the twt
慢波系統作為行波管注波互相作用以激勵微波能量的核心部件，它的優劣直接決定了行波管的性能。 -
Travelling wave tubes （ twt ） are the heart parts of radar systems ， communication systems ， electronic countermeasures ， remote - control & test device ， accurate guidance equipment, etc. as the main component of the beam - wave interaction of a travelling wave tube for producing microwave energy, the solw - wave structure ( sws ) is the key of the twt. it basically determines the performance of the twt
行波管是雷達、通信、對抗和精密制導等設備的「心臟」 ，而慢波系統作為行波管進行注波互作用激勵微波能量的主要部件，是行波管的核心，其性能優劣直接決定高功率微波源的性能。 -
The slow - wave structure ( sws ), as a key part of twt where the beam - wave interaction carries out for exciting microwave energy, determines its performance directly. with the development of techniques, novel slow - wave structures are needed to improve the performance of twt with higher power and wider bandwidth
隨著科技的發展，人們對行波管的性能提出了更高的要求，更高的功率和帶寬成為人們追求的目標，隨著微波管向更高的頻段發展，也要求有新型的慢波結構來提高行波管的性能。 -
Or lc. v. suppressed both sws and rems but increased w, and the effects showed dose dependence. moreover, the relatively smaller dose of icv injected l - name suppressed sleep and a higher systemically admistered dose was effective ( 20 times more than the former ), which suggested that the site of the sleep - suppressing action of l - name is central
同時發現，經側腦室注射較小劑量就能發揮作用，而經外周用藥，則需較大劑量（ 20倍於前者）才能顯示作用，推測可能外周大劑量注射l - name后，其通過血腦屏障的量相對較多， l - name在中樞抑制nos而發揮作用，說明l - name抑制睡眠的作用是中樞性的，並且呈劑量相關關系。 -
Based on the investingation and some study methods of the stability on the goaf, the paper has the goaf of the first and second tunnels of wu long channel on coal mine railway leased line in da ning of shanxi province as an example, according to the engineering geological invesitigation and maping in the earth ' s surface, also combining the visit on the relate people, firstly has a geological judge on the space extend of the mostly ledges which have been picked ; then adopts the instrument of engineering surveying and checking ( for short sws ) which is relatively advanced inside and outside to test by surface wave the rockmass and solid near the middle line of the tunnel ( total forty meter ), and has a relatively exact judgment on the place that the goaf impossible reveal ; lastly passing the validate by drilling, it make clear that the results which tested by sws is reasonable and believable, based on finding out clearly the space extend of the goaf, the author makes a relatively systemic study on the stability of wall rock around the goaf
因此，查明采空區的具體位置，在此基礎上對場地進行工程適宜性評價，對整個工程建設具有重要的指導意義。本論文在總結前人對地下采空區勘察及有關穩定性研究方法的基礎上，以山西大寧煤礦鐵路專用線五龍溝1 ~ # 、 2 ~ #隧道采空區為研究實例，在詳細的地表工程地質調查和測繪的基礎上，結合通過對采空區有關人員的探訪，首先對主要開采礦層的空間展布進行地質判斷；然後採用國內外較為先進的工程勘探與檢測儀（簡稱「面波儀」 ） ，對1 ~ # 、 2 ~ #隧道中線兩側一定范圍內（共40米）進行了面波測試，對采空區的可能出露部位進行了較為準確的判斷；最後通過鉆探加以驗證，表明面波儀的測試結果是較為合理可信的。 -
In this paper, the coaxial disk cylindrical waveguide with longitudinal ribs as sws, a series of detailed studies have been made by theoretical method combining with numerical ananlysis, and a great deal of valuable conclusions have been obtained
本學位論文採用理論分析和計算機模擬相結合就脊加載盤荷波導結構進行了一系列的深入研究，得到了許多有用的結論。 -
The research on the rf characteristics of the conductor - centered helical groove sws. ( a ) in the " cold " system, we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency, the phase velocity and bandwidth are reduced slightly, the structure is more dispersive and the coupling impedance is enhanced
對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究： （ 1 ）在冷系統中的研究結果表明：頻率較低時，槽深的改變對相速的影響不是很大，隨著頻率的增大相速略有減小，同時帶寬也有所減小，色散變得稍強，耦合阻抗增大。 -
First, the theory of the coaxial disk - loaded cylindrical waveguide sws is analysed, and the dispersion equation and the coupling impedance of this structure are obtained. through the numerical caculation, it is discussed that the influence of various circuit dimensions on the dispersion and the coupling impedance. 2
本文的主要研究工作和創新點如下：一、首先完善了同軸膜片加載圓波導慢波系統的理論分析，得到該系統色散方程和耦合阻抗表達式，並通過數值模擬計算，詳細討論了慢波系統幾何尺寸對色散特性和耦合阻抗的影響。
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