波面斜度 的英文怎麼說

中文拼音 [bōmiànxiédù]
波面斜度 英文
wave slope
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 斜 : 形容詞（跟平面或直線既不平行也不垂直的） oblique; slanting; skew; bevel; diagonal; askew; inclined; tilted
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity

    該模型的主要特點是： （ 1 ）它採用了三尺度復合表面模型的思想來計算海面的電磁散射，考慮了中等尺度波對紋波的進一步調製作用，彌補了傳統雙尺度模型的不足； （ 1 ）它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用，實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬； （ 3 ）它把海面長波的軌道速度作為基本的動態成分，並依此來考慮海面運動對sar回波信號的影響。
  2. The second one : we studied the effect of temperature on performance of lds. it was found that threshold current increase exponentially outpower and slope efficiency decrease parabola and exponentially respectively. coefficient of temperature shift is 0. 24 / k, wheras characteristic temperature also decrease with rise of temperature

    研究了溫度對激光器各參數的影響，隨著溫度的增加，閾值電流呈指數增加，輸出功率和斜率效率分別呈拋物線和指數關系遞減，同時特徵溫度也減少，波長隨溫度的漂移系數為0 . 24nm ，並且總結了一些溫度和結構設計方面的關系。
  3. The wind magnitude and wind pressure can be easily adjusted in a wide range with a displaying device avilable. a well - illuminated air suction hood is equipped, which ensures clear observation of the movement of materials. besides, on both sides of the screen there are four holes available that make cleaning easy. the inclination angle of screen can be adjusted within a scope of 7 - 9. therefore, this machine is able to maintain stone - removing effect even the amount of material fluctuates. it can be used to remove the mixed stones in foodstuffs, grains, grease, feedstuffs and chemical products

    調節風量風壓方便，且范圍大有顯示裝置，配有大採光吸風罩，物料運動一目了然配有先進照明燈觀察，篩體二側設有四個清理手孔清理方便，去石篩面傾斜角度可可、調范圍7 - 9 ，因此本機在產量波動范圍之內均能達到去石效果及用於去除不同種類，糧食、雜糧、油脂、飼料、化工其它等的並肩石。
  4. Wave - front slope

    波陳面斜度
  5. Comparisons are made between present method and published results for a wall and non - wall sided circular cylinder in heave and sway. theoretical and numerical results for two - dimensional wave generated by rocker flap wavemaker are also given. in all cases the comparisons are excellent

    作為算例，文中分別計算了圓柱與水面直交和斜交時的水動力系數以及搖板造波問題的速度勢，計算結果與文獻值和理論值符合的較好。
  6. Internal waves are a kind of bridge relating the diapycnal mechanical mixing to external sources of mechanical energy : first, internal waves are driven by wind stress and barotropic tide so that large amount of mechanical energy are transported to abyssal ocean with propagation of internal waves ; second, the mechanical energy can directly be cascaded to mixing through instability and breaking of internal waves

    內波是外界提供的機械能與混合之間聯系的橋梁之一，一方面風和潮汐通過激發內波，將能量向深海和大洋內區傳遞，另一方面，內波的不穩定和破碎直接將機械能串級到小尺度湍流混合中去。開展傾斜地形上內波的傳播以及內潮的產生等方面的研究對海洋混合過程的參數化以及混合對大洋環流的影響等方面的研究具有重要的科學意義。
  7. Solving the static correction problems under complex near - surface conditions is a systematic engineering. first, careful field weathering investigation must be done, then we have to take full advantages of refraction first - break information and field weathering investigation information to compute field static correction and large residual static corrections with various refraction first - break statics methods, finally, reflection statics methods are used iteratively to solve the residual statics problems. to solve serious static correction problems in complex near - surface areas of western china, different refraction first - break statics methods are studied in this thesis. the main study contents are as follows : 1 ) the propagation features of refraction for horizontal layered and dip media are studied firstly, it lays a good theoretical foundation for later statics method studies

    本文針對目前西部油氣勘探中迫切需要解決的復雜地表區靜校正技術難題，對初至折射波解決二維和三維長、短波長靜校正問題的正反演方法進行了深入的研究和探討，研究內容主要包括（ 1 ）水平層狀和傾斜界面折射波的傳播規律，為后續的折射靜校正方法研究奠定理論基礎； （ 2 ）二維復雜層狀介質地震折射波正演方法，該方法可適用於折射面起伏不大、低速層和折射層速度變化不大的情況。
  8. According to the finite element method result, the parametric vibration of cables in cable - stayed arch bridge becomes prone to be exhibited. then a model of non - linear parametric excitation vibration coupling the stayed cable and the girder, namely, the mode of cable - stayed beam, is proposed in the thesis. and the nonlinear dynamical

    3 、首先利用有限元分析方法，得出了斜拉索發生參數共振的可能，然後建立了斜拉拱橋拉索-橋面耦合參數振動模型，即索-梁組合結構模型，推導了索-梁組合結構非線性運動方程，利用多尺度方法研究斜拉索的參數共振和亞諧波共振，並對穩態解的穩定性進行了分析。
  9. According to the theory of optical wave propagation in the slant path and the itu - r turbulence structure constant model, which is altitude dependent and proposed in 2001, the modified rytov method is extended to be applied to study on the problems, which waves propagate in the slant path. the scintillation index as a function of the rytov variance is obtained from weak to strong fluctuation regions with plane wave and sphere wave incidence, respectively

    根據斜程傳輸理論和2001年提出的itu - r湍流大氣結構常數模型，將修正pytov方法推廣應用於斜程傳輸問題研究，得到了平面波和球面波斜程傳輸時的閃爍指數，分析了湍流內尺度、近地面風速等參量對閃爍指數的影響。
  10. The park, sprawling over 3, 000 square metres 32, 290 sq ft of desert land in the gulf city of dubai, will include ski - lifts to take guests to five slopes of varying height and steepness. the resort with artificial snow will form part of a recently opened shopping complex, billed as the world ' s largest mall

    迪拜是一座位於波斯灣沿岸的城市，而這家滑雪場則建造于該市所屬的沙漠地帶內，其佔地面積超過了3000平方米，場內安裝的索道將會把遊客送到擁有不同高度和傾斜角度的5條雪道的頂端。
  11. We made an improvement in overcoming the defects in speech signal adaptive delta modulation ( abbr. adm ), such as slope overloading and grain noise. in this method, numerical sliding average filtering was used for filtering decoding speech signal. experiments and analyses indicate that the method makes waveforms in good agreement between the decoding of adm and the original pulse coding modulation ( abbr. pcm ) signal, and considerably improves, the playback speech quality in naturalness, legibility and under standability

    針對語音信號自適應增量調制（ adm ）方式中斜率過載和顆粒噪聲缺點，提出了一種改進方法，它利用滑動平均方法對解碼后的信號進行數字濾波.試驗和分析表明，該方法使解碼后的信號波形與原脈沖編碼調制（ pcm ）波形具有很好的一致性，使再生語音質量在自然度、清晰度和可懂度方面比改進前均有較大提高
  12. It is found that : ( 1 ) for linear slope, redistribution of incoming energy flux in modenumber space depends on both the modenumber of incident waves and the ratio of the slope of incident wave ray to slope of topography ; both the transmitted and reflected energy flux ( only for supercritical linear slope ) focus near one or two modenumbers ; for supercritical linear slope, the energy flux scattering to higher modenumbers becomes larger and the energy flux to lower modenumbers becomes smaller as the slope of incident wave ray comes near to slope of topography ; ( 2 ) for convex slope, energy flux is redistributed in wide - range modenumbers and also show peaks on lower - modenubers and higher - modenumbers ; ( 3 ) for concave slope, energy flux is also redistributed in wide - range modenumbers, but does not show peaks on higher - modenumbers as supercritical linear slope and convex slope do ; ( 4 ) the total energy flux scattering to higher modenumbers is approximately equal to the total energy flux to lower modenumbers for internal waves propagating over both convex slope and concave slope, which means the concave slope is the same efficient to convex slope in scattering energy flux to higher modenumbers ; ( 5 ) for convex slope, the wave ray reflected from near - critical topography can extend to deep ocean and shallow shelf, while for concave slope, the wave ray reflected from near - critical topography can only extend to limited distance, then meet the topography and be reflected again ; generally the shear of the internal waves reflected twice from concave slope is not enhanced while the enhanced shear does also appear before second reflection takes place, the enhanced shear can bring about intense mixing, so internal waves reflected from concave slope can also produce marked mixing near critical slope

    3 、內波在凹地形上傳播時，能通量在模態上的分佈范圍也比較寬，但與凸地形和超臨界線性斜坡地形相比，能通量在高模態上的分佈沒有明顯的峰值。 4 、從總的能通量來講，內波在凸地形和凹地形上傳播時，向高模態散射的能通量與向低模態散射的能通若十地形下內波傳播及內潮生成問題的理論解量近似相等，這意味著二者在向高模態散射能通量方面具有同等效率。 5 、凸地形上臨界點附近的反射，反射波的波射線能夠延伸到深海和陸架，凹地形上臨界點附近的反射，反射波的波射線很快遇到地形發生二次反射，一般來講二次反射后回到深海的波動其速度剪切並不很強，但是在進行二次反射之前的區域，速度剪切仍然很強，因而內波在凹地形上的反射依然能夠在地形附近區域，產生強的速度剪切區，誘發混合。
  13. Absorption - band parameters such as the position, depth, width, and asymmetry of the feature have been used to quantitatively estimate composition of samples from hyperspectral data. so spectral absorptions are very important feature bands in use of hyperspectral classification and targets identify, this paper extracts absorption features of actual hyperspectral image by continuum removed method which is very useful. then tested both of them by

    吸收峰波段參數例如波長位置、深度、寬度、斜率、對稱度、面積等常常被用來定量的估計高光譜樣本的組成，因此光譜的吸收峰是高光譜識別分類應用中很重要的特徵波段，論文通過包絡線去除這種很有效的光譜分析工具提取出了實際的高光譜圖像的地物光譜的吸收峰參數。
  14. The serpentine feed is the core of a frequency scanning antenna feed system, which produce proper amplitude and phase distribution for the antenna arrays. most of all, it make the beam scanning over a large angle range by means of changing operating frequency

    它為天線陣提供要求的幅度、相位分佈，更為重要的是當頻率發生少許變化時使線源的等相位面產生顯著的傾斜，完成波束在空間掃描。
  15. Then on one hand, author makes researches of anti - jamming against pulse jamming 、 gauss white noise jamming and radio frequency noise jamming from the side of signal processing. author exercises much signal processing knowledge of time - domain sliding window accumulation 、 wavelet analysis 、 time - frequency analysis and linear prediction and carries out many simulation experiments. on the other hand, author proposes the anti - jamming methods of using a sar similar to double - base radar and modulating the amplitude 、 the phase of emission signal and changing the frequency modulation slope from the side of changing sar system model

    作者首先提出了合成孔徑雷達抗干擾的定義、分類以及評價抗干擾方法好壞的主客觀標準；然後，一方面從信號處理的角度出發對脈沖式干擾、高斯白噪聲干擾以及射頻噪聲干擾進行了抗干擾研究，其中運用了時域滑動窗口積累，小波分析，時頻分析以及線性預測等信號處理知識，做了大量的模擬實驗；另一方面，本文基於改變合成孔徑雷達系統模式提出了利用類似雙基地雷達來抗干擾，以及對發射信號進行調幅、調相以及改變調頻斜率來抗干擾，同樣做了相應的模擬實驗。
  16. A laser diode with 976nm center wavelength and 2. 03w maximum cw output power is pumping unidirectionally through the couple - imaging system on a double - clad yb - doped silica fiber with a yb - concentration 0. 65 mol % circular inner core, a d - shaped inner clad, and 15m length by f - b cavity. the center wavelength of the fiber laser is 1130nm, and the maximum cw output power is 130. 7mw. an optical - to - optical conversion efficiency of 42 % and a slope efficiency of 63. 4 % are obtained

    用中心波長976nm 、最大連續輸出功率為2 . 03w的ld泵浦源，通過成像耦合系統，單端直腔式泵浦纖芯摻雜濃度為0 . 65mol % 、內包層截面形狀為d形、長度為15米的雙包層摻鐿石英光纖，實現了中心波長1130nm 、最大功率為130 . 7mw的連續激光輸出，光纖激光器的光光效率為42 . 0 % ，斜效率達到63 . 4 % 。
  17. This paper has studied and set up a supervision and control system based on the backing item of jinzhou yangtze river bridge with main span of 500m, by analyzing the development of construction control of cable - stayed bridges in china and abroad, foreword calculation of 250 work cases of plane bar fem, adoption of advanced equipment and devices, quick analysis of gathered data research of karemen filtering method, least square and gray model gm ( 1, 1 ) into the identification of the real state and precuts and effective manage mechanism

    本文以荊州長江公路大橋主跨500米的混凝土斜拉橋施工為應用背景，通過分析目前國內外大跨度混凝土斜拉橋施工控制現狀，結合該橋施工實踐，運用平面桿系有限元計算理論對大橋250個工藝進行正裝計算，採用先進測試設備和儀器，利用計算機快速分析處理技術對現場監測系統收集的數據進行誤差分析，系用卡爾曼濾波法、最小二乘法和灰色理論gm （ 1 ， 1 ）進行結構真實狀態的識別和後期預測，通過科學高效的監控管理機制的運行和監控實踐，探索並建立了一套適合於大跨度混凝土斜拉橋的施工監測監控體系。
分享友人
分享到 Line

分享到臉書