背射法 的英文怎麼說

中文拼音 [bēishè]
背射法 英文
back reflection
  • : 背動詞1. (用脊背馱) carry on the back 2. (擔負) bear; shoulder
  • : 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) ...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反率曲線整體平移的「同物異譜」現象,對于譜形相似而整體反率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。
  2. The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively, in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system, then found some models such as target echo signal, noise ( including background noise, target radiating noise, etc ), ocean reverberation. according to them, simulate the array signal ; ( 3 ) the system structure, every function blocks composing are studied and founded thoroughly. then, discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts, which connected with torpedo ' s control part

    本文所作的主要工作及研究成果主要有以下幾個方面: ( 1 )對自導工作過程中的信號與信息處理的基本理論與方進行了較為全面的研究,為建立一個較為完備的自導模擬系統提供了理論基礎; ( 2 )討論了自導系統工作過程中海洋通道對目標回波信號與目標輻噪聲信號等的影響,建立回波信號的數學模型、環境場中的噪聲信號模型(包括海洋環境噪聲、目標輻噪聲與魚雷景噪聲等)與海洋混響模型,模擬產生了聲自導系統基陣接收到的回波信號與噪聲信號; ( 3 )深入研究並建立了自導模擬系統的總體框架,給出各個具體功能模塊組成,討論了聲自導系統對信號的時域與空域處理,並結合模擬程序中陣列信號處理模塊,給出固定多通道波束形成的模擬實現過程; ( 4 )根據系統的模擬模型與已建立的模擬流程圖編制了通用魚雷模擬器自導系統模擬軟體,通過網路與控制系統相連,組成完整的魚雷模擬器。
  3. Then, some typical scattering center estimation methods are lucubrated

    在白噪聲景下,深入研究了幾種典型的散中心估計方
  4. Rutherford back scattering spectroscopy ; rbs spectroscopy

    盧瑟福
  5. Injected group, 0. 1 % saccharin ( 1. 5 ~ 2ml / rat, in 5min ) intraoral infused group and cta group. the expression of endogenous leucin - enkephalin ( lek ) in the rat brain was observed and 5 parts of the thalamus including laterodorsal thalamic nucleus ( ld ), lateral part of mediodorsal thalamic nucleus ( mdl ), ventroposterolateral thalamic nucleus ( vpl ), ventroposteromedial thalamic nucleus ( vpm ) and reticular thalamic nucleus ( rt ) were comparatively researched before and after the acquisition of cta applying lek - immunocytochemistry. in behavioral experiment, 18 adult male sd rats were divided into normal cta group ( control ) and 2 naloxone i. p

    為探討cta形成過程中enk的作用,本實驗用成年雄性sd大鼠35隻,分為空白對照組、生理鹽水( 2體重)腹腔注組、 0 . 15mlicl溶液( 2體重)腹腔注組、 0 . 1糖精溶液口腔灌流組( 1 . 5 - 2ml只, 5min )和cta建立組,採用免疫細胞化學方,觀察了亮腦啡肽( lek )陽性神經元在大鼠腦內的分佈情況,並比較了各組大鼠丘腦外側核( ld ) 、丘腦內側核外側部( mdl ) 、丘腦腹后外側核( vpl ) 、丘腦腹后內側核( vpm )以及丘腦網狀核( rt )等5個腦區內lek表達水平的差異;另外將成年雄性sd大鼠18隻,分為正常cta建立組以及在cta建立前或cta建立后阿片受體拮抗劑納洛酮( 2mg kg體重)腹腔注組,對內源性阿片樣物質對于cta建立和保持的影響進行了行為學研究。
  6. Standard test method for determining color of a membrane switch backlit with diffuse light source

    帶漫光源的薄膜開關面照明的顏色測定標準試驗方
  7. Standard test method for determining luminance of a membrane switch backlit with diffuse light source

    帶漫光源的薄膜開關面照明的亮度測定標準試驗方
  8. Firstly it discusses the value, meaning, background and method of this topic. then it deducts the single - bubble sound pressure, spectrum of sound pressure, power spectrum. according to the real situation of traveling bubble cavitation noise around a schiebe body, the mathematical model of single - bubble collapse is selected, furthermore, the mathematical model of mass traveling bubbles without interference effect is established, and the multi - peaks and rebound phenomenon while bubbles collapse is also analyzed with statistical method

    首先論證了本項研究的意義,價值,景和方,然後推出了單空泡輻噪聲聲壓,聲壓譜和功率譜,針對回轉體流動泡空化噪聲的具體情況,選擇了雙指數模型作為單空泡潰滅的數學模型,進一步建立了無干涉條件下的群泡輻噪聲的數學模型,並用統計的方分析了空泡潰滅時的多峰值和反彈現象。
  9. 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頻/微波集成電路需求的大景下,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實現頻/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。
  10. The use of interferometer to detect and analyze laser radiation is well known, but when the intense ratio of the laser radiation to the background natural light radiation is too small, the laser radiation cannot be detected. a novel more sensitive method for detect of wideband weak incident laser in strong background noise is introduced in this paper. the optical unit uses two wedge interferometers and two line array detectors. the incoming light radiation is divided into two beams and through the interferometers

    在被動激光偵察告警中,對微弱脈沖激光信號的探測是一個難點。當探測距離相當遠或視場內接收的景光輻很強時,脈沖激光信號到達探測器的能量很小,會淹沒在強大的景光信號中而探測不到。本論文提出了一種探測微弱脈沖激光信號的方,可對強烈景光中的激光威脅信號進行探測和告警,並給出其波長參數。
  11. A method for estimating the intensity of underwater laser backscattering based on the concept of equal phase volume

    基於等相位體概念的水下激光向散強度的估算方
  12. According to the principle of a new scanning electron microscope and the mechanism of the interaction between electron beam and solid target, the trajectories of an incident electron in a sample are simulated, a simulation program is compiled using the monte carlo method, and the backscattering coefficients corresponding to different parameters of the sem are obtained

    摘要根據新型分析掃描電子顯微鏡的工作原理及載能電子束和固體相互作用原理,利用蒙特卡羅方模擬入電子和靶物質的相互作用過程,編制了蒙特卡羅模擬計算程序,獲得了對應不同電鏡工作參數的入電子率。
  13. These emission peaks are located in the directions of the specular reflection of laser, the target normal and the back - reflection of laser respectively

    這些超熱電子發峰分別沿著激光反方向、靶線方向和激光方向。
  14. Abstract : based on weapon locating radar, this paper discusses detection performances of its sequential detection system in detail firstly. optimal method is applied to obtain its optimum threshold and criteria

    文摘:以某型炮位偵察校雷達為實際工程景,詳細討論了其序列檢測系統的檢測性能,並應用最優化方得出其最佳門限和最佳判定準則。
  15. The whole body echo area health massage, the whole body medium guidingreflexotherapy, the book of changes massage, 砭 the qing stonereflexotherapy, the back spinal column reflexotherapy, the footreflexotherapy and so on

    全身反區保健按摩、全身介質導引反、易經按摩、砭磬石反、脊脊柱反、足部反等。
  16. The judge, whose eyes had gone in the general direction, recalled them, leaned back in his seat, and looked steadily at the man whose life was in his hand, as mr. attorney - general rose to spin the rope, grind the axe, and hammer the nails into the scaffold

    官收回了適才散的目光,向椅上一靠,目不轉睛地望著那青年-那人的性命就摸在他手心裏。此時,檢察長先生站起身來,絞起了絞索,磨起了斧頭,把釘子釘進了斷頭墩。
  17. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁(光子)晶體貼片天線,用fdtd方並結合pml吸收邊界條件對該天線進行了研究,結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善,與普通天線相比,基底中的表面波受到很大抑制,天線的帶寬增加,遠場方向圖上天線的旁瓣和瓣被明顯削弱,向前輻的增益由原來的12db增加到26db ,增加了14db ,比文獻上報道的gonzalo等人的研究結果提高了4db 。
  18. Connectors, receptacle, coaxial, radio frequency series c cabled, socket contact, flacqe mounted, rear mounted, class 2, detail specification for

    C系列接電纜插孔接觸件蘭安裝2級頻同軸插座連接器詳細規范
  19. In the work, mid - frequency pulse magnetron sputtering is used to prepare znoral thin films used as the back reflector of the thin silicon films solar cells. the best techological condition was obtained by optimizing the preparing conditions, ( var is decided by the deposition rate, target voltage : 265v, gas pressure : 0. 6pa, the high base vacuum is expected

    本文採用中頻脈沖磁控濺,通過優化zno : al薄膜的制備工藝,如靶電壓、本底真空度、工作氣壓、襯底溫度、 o _ 2 ar ,得到可用於硅薄膜太陽能電池電極的zno : al薄膜。
  20. Metallic and non - metallic coatings - measurement of thickness - beta backscatter method

    金屬和非金屬覆層.厚度測量.
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