散射區域 的英文怎麼說

中文拼音 [sǎnshè]
散射區域 英文
scattering region
  • : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
  • : 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) ...
  • : 區名詞(姓氏) a surname
  • : 名詞(在一定疆界內的地方; 疆域) land within certain boundaries; territory; region
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. Since the problem of feature extraction from 2 - d radar data can be approached as a parametric modeling and parameter estimation problem, the 2 - d type - discriminated geometric theory of diffraction based ( td - gtd ) model that discriminate between the localized and distributed scattering centers of the target is presented

    在對目標中心的建模與參數估計中,提出採用更貼近機理的、特徵含量更為豐富的二維中心模型?分局性與展布式中心類型的幾何繞理論( td - gtd )模型。
  2. In the " gaussian - shape pulse excite wakefield scheme " simulation, the laser pulse undergoes " self - modulation " and " self - focusing " and the p

    在這一密度,傳統的觀念認為是不能激發「受激aaman」的。
  3. The microstructure, structure, composition, phase of joint region, and the microstructure and composition of fracture have been analyzed using the equipment of metallurgical microscope, sem, eds, xrd and binary eutectic phase diagram for the al - cu system and diffusion theory

    利用金相顯微鏡、掃描電鏡、能譜儀、 x線衍分析儀,結合al - cu二元合金相圖及擴理論,分析了接頭的形貌、組織、成分、相組成,以及斷口形貌、成分。
  4. Electroacoustics - random incidence and diffuse field calibration of sound level meters

    電聲學.聲級測量儀的隨機入散射區域的校正
  5. ( 2 ) based on gaining the surface parameters, to compare to diversified retrieve model to choose optimal one to retrieve net radiance flux, soil heat flux and latent heat flux, which settle the groundwork to calculate the regional et

    在獲取地表參數的基礎上,反復對比前人各種遙感反演模型,選擇最佳模型對長江三角洲的凈輻通量、土壤熱通量、潛熱通量進行了反演,為計算量奠定了基礎。
  6. This paper reviewed the researches and applications of seismic techniques in mining exploration in detail, including the fundamental researches composed of acoustic properties and scattering characteristics, regional reconnaissance studies. 2 - d and 3 - d surface seismic imaging and down hole seismic imaging, and pointed out the main seismic method used in mining exploration is reflected wave methods at present

    摘要系統地總結了國內外現有金屬礦地震勘探技術及其研究與應用現狀,其中包括巖石物理性質分析和波場特徵分析等基礎研究、普查地震技術、二維和三維地震成像技術及井下地震勘探技術。
  7. The carbon dioxide laser facilitates resection by providing a bloodless field and reduces the possibility of viral seeding of the conjunctiva by sterilizing the operative site and sealing the lymphatics

    二氧化碳雷有良好的止血作用,並對手術內完全滅菌,可封閉淋巴管以阻止病毒擴,以利乳頭狀瘤之完全切除和預防其復發。
  8. The purpose of this theme is to classify sar images into four regions : man - made targets ( vehicles and buildings ), natural targets ( trees and shrubbery ), background ( field and grass ) and shadow ( the target shadow and mirror scatter ). on the one hand, the processed results can be directly used as image product, which offer necessary parameters for expert ' s interpretation to build up an independent auxiliary interpreting system. on the other hand, the results can be introduced into sar image interpreting system as the replacing target detection and discrimination models with layer rois ( region of interest ) in order to provide potential target chips

    具體內容為:根據sar圖像基本特性,提取可靠特徵,將圖像分為人造目標(機動車輛、建築物等) 、自然目標(樹木、灌木、樹林等) 、背景(草地、平地、植被等)和陰影(目標陰影、鏡面體等)四種類別,為不同的應用提供對應的感興趣( roi ) 。
  9. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期,由於b在硅中的固溶度、擴系數與n型發的磷相匹配, sio _ 2對其又有良好的掩蔽作用,早被選為npn硅平面器件的理想基源,但b在硅中的固溶度大( 1000時達到5 10 ~ ( 20 ) ,擴系數小, b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈,導致器件不能滿足高反壓的要求,隨之又出現了硼鋁塗層擴工藝和閉管擴鎵工藝,前者會引起較大的基偏差,雜質在硅內存在突變,導致放大系數分嚴重,下降時間t _ f值較高,熱穩定性差;後者需要難度較大的真空封管技術,工藝重復性差,報廢率高,在擴質量、生產效率諸方面均不能令人滿意。
  10. A comprehensive method for recovering the inverse scattering boundary

    反演聲波散射區域的一種組合方法
  11. The study of the effect of the momentun distribution of target nucleons on the scdw calculation is performed, which shows that the larger nucleon momentum compenents affect the double differential cross sections at backward and forward angles, while smaller nucleon momentum compenents affect the cross sections near the qes angle

    本文還分析了核子動量分佈對scdw模型雙微分截面計算的影響,發現大動量的核子成分的增加會導致截面計算值在大角度和極小角度的增大;小動量核子成分的減小會導致截面計算值在準彈性角附近的減小。
  12. This technique combines the edge - based finite - element method with physical optics ( po ) and physical theory of diffraction ( ptd ). the hybrid technique is applied to compute the scattering fields from the electrically large bodies with cracks and cavities on their surfaces. it is also used to analyze the scattering characteristics of microstrip antennas residing in a cavity mounted on metal objects with finite sizes

    本文採用edge - basedfem為基本方法,結合物理光學法( po ) 、物理繞理論( ptd ) 、邊界積分方程( bi ) 、分解技術( ddm )和完全匹配層( pml )吸收邊界條件等求解方法構成的混合方法,對電磁和輻問題進行了研究,主要包括以下內容:提出了一種edge - basedfem與物理光學方法和物理繞理論相結合的混合方法? fem po - ptd方法,並將該混合方法應用於帶有腔體或槽縫的電大尺寸導體目標的電磁特性分析和位於有限導體目標上的背腔式微帶貼片天線的電磁特性分析。
  13. On the basis of research available and through seven aspects : the family structure, vocational structure, the structure of the mode of life, psychological and cultural structure, income structure, organization structure and social identity, the thesis reflects the process of urbanization in the community between rural and urban areas, especially demonstrates the unique characteristics of urbanization in the community between rural and urban areas of the east of china by taking shui village and kong village in anning district lanzhou city of gansu province as the example and using the advantage of multiple subjects such as sociology, anthropology, economics, etc. the transition of the community between rural and urban areas is their imitation and incorporation into the urbanization, and the effect of their spread and radioaction

    本研究在已有研究的基礎上,應用社會學、人類學、經濟學等學科的綜合研究的優勢,以蘭州安寧水村和孔村為例,通過對兩村家庭結構、職業結構、生活方式結構、心理文化結構、收入結構、組織結構和身份認同等七個方面的實證研究,反映了城鄉結合部的城市化進程,特別是反映了中國西部內地城市化進程獨特的特點。城鄉結合部轉型過程是城鄉結合部自身模仿、融入城市以及城市的擴效應嵌入的過程;城鄉結合部是許多矛盾、困惑及經驗反映最集中的場所;同時是將漫長的城市化進程濃縮在一個短期內進行的相對較小的
  14. In front, and especially on the right side, the cannons kept booming in the smoke that never lifted, and from the mysterious region of the smoke that hid all the country in front, there came flying swiftly hissing cannon balls and slowly whizzing grenades

    從前方,特別是從右方,在停滯不的硝煙里,大炮隆隆地發著,前面那一帶神秘的的整個地面都彌漫著煙霧,從那裡不斷飛出疾速的噝噝作響的炮彈和緩慢的呼嘯而過的榴彈。
  15. With analyzed the relation between the particles number in the oil and the contamination of t he oil, the relation between oil contamination and the weakening of transmitted light intensity, the oil contamination is monitored based on the particles scattered the light. the minimum peak value of the oil at low - loss transmission area of quartz optical fiber can be selected to monitor the oil contamination

    在對油液中磨損顆粒的含量與油液污染度的關系以及油液污染度與通過油液的光通量的減弱進行分析的基礎上,利用油液中懸浮顆粒對光線的的特性,對油液的污染度進行監測,選擇光線在石英光纖低損耗傳輸和油液對光線最小吸收峰進行測量。
  16. Particle ratios embody the chemical equilibrium driven by inelastic interaction during rapid expansion when the temperature decreases in the colliding system, the measured hadron ratios provide the chemical composition of the fireball at the chemical freeze - out point and access the baryon transporter stopping ) for the initial conditions at early stage of the collisions. in this paper, we study the anti - proton to proton ratio from ig7au + 197 au collisions, analyzing p / p ratio as functions of rapidity, transverse momentum and centrality at ^ / saw = 200gev and the dependence on the center of mass energy of p / p ratio, compared with the experimental results. it shows that the p / p ratio has n ' t obvious dependence on rapidity for mid - rapidity, but shows a slight increase trend with pt increasing in the range of pt < 1gev / c for mini - bias or central collisions, and rqmd shows a more remarkable correlation between p / p ratio and centrality than experiments do at snn = 200gev

    研究表明:對廠在中心快度沒有明顯的快度依賴性,在越靠近邊緣快度, p p呈下降趨勢;在對心碰撞或者最小無偏事件中, p p在低橫動量隨著橫動量的升高而增大; p隨著碰撞對心度的比實驗結果表現出稍強的隨對心度增大而減小的趨勢,尤其是有再ujrqmd模型;在中心快度, p p隨著碰撞的質心能量的提高而快速的增大,與實驗結果一致;在低能,有末態粒子再的d較好的預言了的:但是在mc能量下,有末態粒子在的d所預言的p p值比實驗值要小。
  17. The thesis points out that while large investment in agriculture has not started, small towns in yuebei mountain area should have pre - consciousness. they can not completely copy the experience of " industrialization of village " in coastal developed area. they should make full use of their specific characteristics and advantages to develop anti - magnetic nucleate towns, so as to strengthen their magnetic force and influence, therefore counter against the strong appeal of factor of production and create conditions to meet the industrial expand from the developed pearl river delta

    文章概述了「反磁力型」中心鎮的思想淵源和基礎,指出在工業發展尚未達到反哺農業的階段,粵北山小城鎮應當具有超前意識,利用自身優勢和特色發展「反磁力型」中心鎮,提高其吸引力和輻作用,從而抗衡沿海發達地對生產要素的強大吸引力,同時也為下一階段接受珠江三角洲等沿海發達地產業擴創造條件,而不能一味地模仿沿海發達地「農村工業化」的路子。
  18. One avhrr image of the yangtze delta at 13 : 00 on 15th apr., 2003 is used to retrieve the regional parameter such as surface albedo, ndv1, surface emissivity and surface temperature, which is based on regional trait of the yangtze delta to choose different model. all above will give a methodological support to gain the regional surface parameters, what ' s more, it will afford the parameter support to calculate the regional et too

    選取了2003年4月15日13時的avhrr影像,根據長江三角洲特點,選擇不同的反演模型,分別對長江三角洲地表反照率、歸一化植被指數、地表比輻系數、地表溫度進行了反演,為地表參數的獲取提供了方法支持,也為長江三角洲的量求取提供了參數支持。
  19. Some variables regional distribution over south ningxia is given out in the course of evapotranspiration estimation : the regional distribution of surface characteristic parameters ( normalzed difference vegetation index, surface albedo, surface temperature ), radiation balance components ( surface absorbed shortwave radiation, surface longwave radiation, atmospheric counter radiation, net radiation ), surface heat and balance components ( soil heat flux, sensible heat flux, latent heat flux )

    估算蒸發()量的過程中,得到許多有意義的量:地表特徵參數(植被指數ndvi 、地表反率、地表溫度) ;地表輻平衡各量(地表短波吸收輻、地表長波輻、大氣逆輻、地表凈輻) ;地表熱量平衡各量(土壤熱通量、顯熱通量、潛熱通量) 。
  20. Thus, a simple comparison of the normal image with the defocused image enables the relative rotation between the final image and diffraction space to be determined

    因此,普通映像和焦映像的一個簡單對比能夠體現在最終映像和指定的衍之間的相關旋轉。
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