射電背景 的英文怎麼說

中文拼音 [shèdiànbēijǐng]
射電背景 英文
radio background
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 背 : 背動詞1. （用脊背馱） carry on the back 2. （擔負） bear; shoulder
  • 景 : Ⅰ名詞1 （風景; 景物） view; scenery; scene 2 （情形; 情況） situation; condition 3 （戲劇、電影的...
  • 背景 : （布景; 襯托主體事物的景物; 對人物、事件起作用的歷史條件或現實環境） background; backdrop; setting
  1. The electronic temperature, intensities of all lines and continuous spectra gradually increased with the increment of laser energy, and they got to maximum at different laser energy. our results of copper and aluminum show that there are possibly different thresholds of laser energy to electronic temperature and intensities of emission spectra of laser ablated plasma. at the different environmental gas pressure, spatial emission intensity distribution is explained by the competition among " heat reservoir effect ", " confined effect " and " s hadow effect "

    認為cu等離子體羽的發光機制是由電子與粒子的碰撞傳能、電子與離子的復合形成的；隨激光能量的增加， cu等離子體特徵輻射（分立譜） 、連續背景輻射（連續譜） 、電子溫度都出現最大值；結合對al的實驗結果說明：激光燒蝕金屬產生的等離子體，其特徵輻射、連續輻射、電子溫度可能都存在一定的能量閾值；背景氣壓對激光燒蝕等離子體譜線的影響，其機理可以認為是「熱庫效應」 、 「約束效應」及「陰影效應」相互競爭的綜合結果。
  2. ( 2 ) the emission spectra of laser ablation metal copper plasma were measured. the detailed mechanism of plume emission of cu plasma was qualitatively explained using a simple model based on excitation of atom and ion in plume arising from inelastic collision between the elemental species and electron with high kinetic energy. under the local thermal equilibrium model, the electronic temperature of copper plasma was deduced to be in the 104 scale by its emission lines

    （ 2 ） cu等離子體光譜：在420 570nm波長范圍內觀測了激光燒蝕cu等離子體的光譜和各發射譜線在等離子體中的空間分佈；比較了激光能量對cu等離子體發射光譜、電子溫度的影響；用局部熱力學平衡（ lte ）近似，測得cu等離子體的電子溫度為104k數量級；在不同背景氣壓下，觀測了激光燒蝕cu等離子體光譜的空間分佈。
  3. This article, through analysis different system radar ’ s superiority and limitation in target identification, proposes to unite the convention air defense radar ’ s echo characteristic and the electronic support sensory system ’ s aircraft - borne radiant characteristic, structure reasonable recognition system. it can satisfie the airplane target identification demand under the different background

    本文通過分析不同體制雷達在目標識別上的優勢和局限性，提出把常規防空雷達回波特徵和電子支援偵察系統得到的機載輻射源特徵聯合起來，構造合理的識別系統的新思路，以此來滿足不同背景下對飛機目標識別的需求。
  4. To show the applicability of the proposed algorithm for engineering problems, the thesis computed the radiated electromagnetic field of a switched mode power supply, with special attention on the analysis of the emi in the electronic control circuit. different numerical results and two valuable guidelines are drawn

    從而以實際高頻開關電源為工程背景，通過對高頻開關電源產生的輻射電磁場的分析，重點計算了該開關電源控制迴路處的主要電磁干擾，得出了相應的數值計算結果和可供實用參照的結論。
  5. Basing on other researchers ’ work, this paper has put forward a novel type of icc ( induced current cancellation ) shielding layer for rfic / mmic performance improvement, to reduce high frequency loss, increase q value, and expand its application frequency range. and present how to realize rfic / mmic components such as i / o pad, inductors, baluns and so on by applying icc shielding layer structures. furthermore co - design methods of ic component structure and foundry process structure designs has been presented in this thesis

    在無線通信技術對cmos射頻/微波集成電路需求的大背景下，本論文提出了用於高頻集成電路（ rfic / mmic ）器件的各類新型icc （ inducedcurrentcancellation ，感應電流相消）屏蔽工藝結構，由此設計製造的ic部件解決了傳統半導體工藝無法實現射頻/微波集成電路的難題，以達到降低高頻集成電路器件的高頻損耗，提高器件q值以及擴寬器件應用頻帶的目的。
  6. This dissertation bases on the research of battlefield armored reconnaissance tank system, which is a very important reconnaissance & information reception means for our country ? digital armored troops. the zzco2 radar armored reconnaissance tank system is the collector of radio information by use of the radiation and reflection of electromagnetic wave, at the same time it is a system which saves, processes and transmits the radar information picked up. the content of this dissertation involves the design and development of zzco2 ? software system

    本論文以我軍裝甲機械化部隊坦克師的戰場裝甲偵察系統的研製為背景撰寫。該系統是我國數字化裝甲部隊的重要偵察和信息獲取工具。其中zzc02型雷達偵察車（型）是該系統的前沿偵察車，是不可見電磁頻段的雷達信息的收集者，是以電磁波輻射、反射作為信息獲取的主要手段，以計算機主機為中心的信息採集、處理、存儲和傳輸系統。
  7. Against the background of the microstructural evolution of three dimensional braiding c / sic composites, used such analytical methods as lm, sem and tem, it is studied that the matrix cracks propagate in the composites with different interphase thickness under three - point - bend testing, as well as under the creep testing. the main conclusions are as follows : 1

    本文以三維編織c sic復合材料微結構演化為背景，採用光學顯微鏡（ lm ） 、掃描電鏡（ sem ）和透射電鏡（ tem ）等分析手段，研究了不同界面相厚度的復合材料在三點彎曲測試中基體裂紋的擴展規律，以及基體裂紋擴展對蠕變過程的影響。
  8. The overall design of the double reflector optical - electronic theodolite is studied on the background of " the x small remote - control optical - electronic theodolite "

    以「 x小型遙控光電經緯儀」為背景，研究了雙反射鏡式光電經緯儀的總體設計。
  9. The results of simulations are : i ) energies of the incident ions to the target are determined mainly by the voltage across the cathode sheath, with a majority of ions " energy vary around the sheath voltage ; ions nearly normally bombard the target ; ions mainly locate above the sputtering holes because of the influence of the magnetic field, and the incident ions mainly come from the region ; the ions undergo several collisions during transportation, but that do n ' t matter much

    主要模擬結果有： ? ）入射離子到達靶面時的能量主要受到了射頻輝光放電中陰極殼層西北工業大學碩士學位論文李陽平電壓的影響，大部分離子的入射能量在陰極殼層電壓值附近，離子濺射時接近於垂直入射;射頻輝光放電受到陰極磁場的影響，等離子體中的離子主要集中在靶面濺射坑的上方，且入射離子主要來自這個區域;入射離子在輸運過程中和背景氣體分子有少量的碰撞，但影響不太大。
  10. The thesis is based on the subproject of national " 973 " key project, " hxmt spacecraft integral analysis and design ". aiming at the satellite power system, it establishes a simulation software, and uses it on the hxmt power system designing and simulation

    本文以國家973專項課題「天體高能輻射的空間觀測與研究」的子課題「 hxmt衛星系統方案設計」為應用背景，構造了一個面向衛星電源系統的模擬軟體，並對hxmt天文衛星電源系統進行了設計分析和模擬工作。
  11. To meet the demand of thermal dispersion of some solid - state module, system research for thermal techniques is carried out, and the main contents are as follows … ( 1 ) the solid - state modules and interrelated thermal techniques are introduced on research background, and moreover developing tendencies of electronics cooling are described

    本文對某雷達發射固態組件的熱技術進行了系統的研究，主要內容包括: （ 1 ）對固態組件散熱技術的研究背景和意義進行了闡述，對電子散熱技術的現狀和發展趨勢進行了總結。
  12. First, the ray tracing equation and its numeric solution is presented in this paper, then on the base of quasi - parabolic ionosphere model, using the technology of the numeric ray tracing, a ray tracing simulateing platform is established. this platform can simulate the ray tracing for a fixed frequency or sweeping frequencies, also can calculate the group path and the covered region of rays

    首先，本文給出了射線追蹤方程及其數值解法，在球形對稱準拋物模型背景電離層基礎上，利用數字射線追蹤方法，建立了射線軌跡演示平臺。該平臺可實現定頻或掃頻射線軌跡演示，計算各射線群路徑，覆蓋區域等功能。
  13. To carry out this analysis it is necessary for the experimentalist to have a working knowledge of the background theory of both image contrast and electron diffraction, since these fields form the basis for the interpretation of electron micrographs

    要進行這種分析，試驗者必須同時擁有圖象對比和電子衍射的理論背景下的工作經驗，因為這些領域形成了電子毀損的解釋基礎。
  14. This paper studies cretaceous volcanics distribution, rock types, tectonic setting and reservoir characteristics in the western depression of liaohe fault depression through statistics of compound logging data, core observation, thin section identification, cathodeluiminescence, scanning electron microscope, x - ray diffraction analysis, image analysis, rock chemical analysis, isotope age testing, and inclusions temperature testing

    摘要通過全區綜合錄井資料的統計、大量的巖心觀察，並利用薄片鑒定、陰極發光、掃描電鏡、 x衍射分析、圖像分析、巖石化學分析、同位素年齡測定、包裹體溫度測定等10餘種方法，對遼河斷陷西部凹陷白堊紀火山巖分佈、巖石類型、巖石系列、形成的構造背景及儲層特徵進行了研究。
  15. According to big bang theory, the early universe is a hot, dense and opaque fluid of electrons and protons. this hot plasma constantly emits, scatters and reabsorbs photons and is the source of the cosmic background radiation

    根據大爆炸理論，早期的宇宙主要由電子和質子組成，是一團高密度極端熾熱不透光的等離子體，它不斷放射散射和吸收光子，是宇宙背景輻射的源頭。
  16. To date, most research on cmos rf circuits is focused on cmos rf front - end including some key building blocks such as low - noise amplifier ( lna ), mixer, bandpass filters, voltage control oscillators and power amplifiers. in si rf 1c, inductors need be realized on a silicon substrate along with all of the other devices in a single chip. in fact, the need for high q integrated inductors in rfics is increasing

    在無線通信技術對cmos射頻集成電路需求的大背景下，本論文在大量深入調研的基礎上，圍繞射頻集成電路中必不可少的、有多種應用的無源器件?硅集成電感及其相關的cmos射頻集成單元電路，先後在上海冶金所微電子分部工藝線上及利用上海市科委的多目標晶元項目（ mpw ）在無錫華晶上華半導體有限公司進行了大量的實驗研究，得到了一些新的結果。
  17. Considering space environment of laser atmospheric communication, the thesis analyses issues of atmosphere turbulance and interference of background light noise during the course of transmission, furthermore, discusses the structure and basic constitute of the laser atmospheric communication system. combining the technical index requirement of the subject, it provides design scheme and circuit of the transmitting and receiving system

    論文從激光大氣通信的空間環境出發，對光信號傳輸過程中通道中的大氣湍流和背景光噪聲干擾問題進行了分析，並在此基礎上論述了激光大氣通信系統的結構和基本組成，結合課題的技術指標，給出了發射和接收系統的設計方案及其電路實現。
  18. The purpose of this paper is to provide image functions for a telemedicine consultation software system. the most important topics of the paper are briefly summarized as following. first, the standards which are closely related with telemedicine image, such as acr - nema dicom and acr standard for teleradiology, were discussed

    本文以遠程醫學會診系統的圖像功能實現為背景，在以下兩個方面作了研究：首先，對美國放射學會-美國電器製造商協會的dicom標準和遠程放射學標準等作了必要的研究。
  19. To participate, users have to get connected with the internet and run a free program runs like a screensaver that downloads and analyses radio telescope data as a background task

    要參與該項計劃，用戶首先要接駁到網際網路，然後啟動一個免費的程式如屏幕保護程式般運行，以背景工作方式，下載和分析射電望遠鏡數據。
  20. To participate, users have to get connected with the internet and run a free program ( runs like a screensaver ) that downloads and analyses radio telescope data as a background task

    要參與該項計劃，用戶首先要接駁到網際網路，然後啟動一個免費的程式（如屏幕保護程式般運行） ，以背景工作方式，下載和分析射電望遠鏡數據。
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