波間帶 的英文怎麼說

中文拼音 [jiāndài]
波間帶 英文
sign waves
  • : 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...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  1. The characteristics of various solid - state power - combining techniques and the principles of the waveguide - based power combining structure are compared and analyzed in detail. the power combiner is based on a double antipodal finline - to - microstrip transition structure. the proposed 2 2 combining structure is optimized by using 3 - d fields simulation tools cst

    主要內容為: 1 .研究和對比了各種固態功率合成技術的特點,詳細地分析了導基空功率合成器的工作原理,提出了一種基於雙對極鰭線-微過渡的2 2路毫米功率合成器結構,藉助三維場模擬軟體cst對該無源網路進行了優化設計。
  2. The theory of wilkinson power combiner and ratrace coupler is analyzed by using the odd - even mode method in this thesis. on the basis of the theoretical analysis, we designed and tested the wilkinson power divider, the modified wilkinson power divider and ratrace coupler, good agreement is observed. in addition we propose a power combiner based on a waveguide - to - microstrip transition using antipodal finlines. this structure united the two functions of transition and equal power division, it can not only be used in the circuit power combiner but also be used in spatial power combiner

    另外提出一種基於鰭線導微過渡功分器,該結構將過渡與功分兩種功能完全結合,不但可以用於電路合成式功率合成,也可用於空功率合成中。對功率合成器,其主要指標是輸出功率和效率,其中提高輸出功率和效率的一個方法是在輸出端抑制諧,主要是對二次諧的抑制。
  3. Blotchy interveinal yellow - green mottling and marginal yellowing of expanded leaflets ; irregular brown necrotic patches ; wavy margins and down - curved leaf tips

    矮生菜豆缺鋅:泡的脈形成黃綠色斑紋,展開的小葉邊緣黃化及不規則的褐色壞死斑點,浪形邊緣,葉尖向下捲曲
  4. " the middle window at the caf rospoli will be hung with white damask, bearing a red cross.

    「羅斯麗宮的中那個窗口就掛白緞紅十字的窗簾。 」
  5. Zonal wavelets on the heisenberg group and the orthogonal decomposition for the function space

    群上的狀小及函數空的正交分解
  6. The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given

    利用坐標旋轉后球坐標變量的關系和連勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式;以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系,寫出了引入二階矢量位的過程;以時諧場矢量邊值問題為例,闡明了不同坐標系下電磁場解的相互轉化原理,給出了一個解析解的轉化例子;在球坐標下,引入了較球矢量函數更普遍的兩類矢量函數,給出了其在球面上的正交關系。
  7. The simulation and experiments indicate that these two methods are simple, fast and accurate. a new optimal design of interleaves based on cascaded mach - zehnder interferometers is also presented. as compared with the two existing methods ( digital signal processing methods and fourier filters ), the present method is simple and intuitive

    本論文分析了mach - zehnder干涉儀級聯形式之的關系,提出了通平坦化分叉復用器的新型設計方法,與現有兩種方法(應用數字濾器設計方法以及傅立葉展開法)相比較,本文提出的設計方法直觀、簡單。
  8. The hyperbolic conservation laws with relaxation appear in many physical systems such as nonequilibrium gas dynamics, flood flow with friction, magnetohydrodynamics, etc. firstly, the thesis proves that there exists a unique global smooth solution for the cauthy problem to the hyperbolic conservation laws system with relaxation ; secondly, in the large time station, the thesis proves that the global smooth solutions of the hyperbolic conservation laws system with relaxation converge to rarefaction waves solution at a determined l ( p > 2 ) decay rate

    鬆弛項的雙曲型守恆律組出現在諸多的物理系統中。例如,非平衡態的氣體動力學、摩擦的水流、磁動力學等。本文首先證明,鬆弛項的雙曲型守恆律組的柯西問題的整體光滑解的存在唯一性;其二,證明了鬆弛項的雙曲型守恆律組的解與相應的平衡態守恆律的稀疏解在大時狀態下的l ~ p衰減率。
  9. On the left, the marly aqueduct commands the horizon ; on the right, the view unfolds across a never - ending succession of hills ; the river, which at this point hardly moves at all, stretches away like a wide ribbon of shimmering white silk between the plain of les gabillons and the lle de croissy, and is rocked ceaselessly by the whisper of its tall poplars and the soughing of its willows

    左邊是一望無際的馬爾利引水渠,右邊是連綿不斷的小山崗在加皮榮平原和克羅瓦西島之,有一條銀白色的小河,它在這一幾乎是停滯的,像一條寬大的白色紋緞似的向兩面伸展開去。兩岸高大的楊樹在隨風搖曳,柳樹在喃喃細語,不停地哄著小河入睡。
  10. Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

    基於以上考慮,論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討:全面回顧了「可持續發展」概念的由來與演變,對國內外「可持續發展」的研究現狀進行了述評,並對「可持續發展」概念的科學內涵進行了深入探討;對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述,對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解;全面闡述了地下水資源變值系統理論的內容和意義,並與傳統的地下水資源計算評價方法進行了對比分析,結合實例具體說明了方法的應用;深入分析了地下水資源預測預報工作的極端重要性和復雜性,對傳統的地下水資源動態預測方法進行了全面的評述,指出了各類預測預報方法的特點及適用條件,對最近二十多年剛發展起來的小分析技術的主要思想和方法及其應用范圍,以及號稱第五代計算機語言的matlab軟體和附的小分析工具箱進行了介紹,並應用於地下水動態過程線的分析,採用時序列中的b ? j法,蒙特卡羅方法,與地下水資源變值系統理論相結合,探討了地下水動態資料分析和地下水資源預測預報的新思路;綜合分析了現今各類地下水管理模型的特點及缺陷,將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度,使模型更準確、更實用;對保證地下水資源可持續開發的內部條件和外部條件進行了分析,內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀,科學的資源計算與評價方法,可靠的資源預測預報技術,可操作的資源管理措施,外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。
  11. The most outstanding function of this wheelchair is its height which can be regulated with user ' s requirements. this function helps expand the user ' s available space, supplement the user ' s body defect and reduce the caregiver ' s burden. it get more improved than previous products. besides, the wheelchair has designed both manual and eletric mode. on one hand, it can save user ' s energy and power, on the other hand it won ' t leave users hopeless in case of powering off and relieve the user ' s worriness. in addition, the bigger basket on the tail part of the wheelchair provides the great convenience for user ' s carrying goods. multiangular back and height - regulated pedal add comfortableness to users. the minidesk with the wheelchair is very convenient for users to read, write and do other things

    本設計的多功能輪椅最突出的一個功能就是座位的高度可以根據使用者的需求隨意進行調節,這樣就可以大大擴展使用者的操作空,補充了使用者在身體上的缺陷,也可以減輕照顧人員的工作負擔,比起以前的產品有了較明顯的改進;其他功能還有輪椅的手動電動兩種驅動方式,這樣可以解決老年人和殘疾人在體力上存在的問題,同時在外出時遇上沒電的情況也不至於顯得無能無力,消除了使使用者在長途奔時的顧慮;此外位於輪椅尾部的超大儲物筐,給使用者攜物品來了極大的方便,靠背的多角度調節,腳踏板的高度調節大大增加了使用者的使用舒適度,輪椅上小桌的設計給使用者讀書,寫字,進行其他活動來了極大的方便。
  12. The frontal structure of longmenshan in the west of sichuan is very complex, showing intense structure deformation in overthrust belt, high structure amplitude, steep stratigraphic dip, developed fault blocks, complex seismic wave field, frequent change of lateral velocity, and poor image of post - stack time migration processing

    摘要川西龍門山前緣構造非常復雜,逆掩推覆構造構造形變強烈,構造幅度大,地層傾角陡,斷塊發育,地震場復雜,速度橫向變化大,常規疊后時偏移處理成像效果較差。
  13. Methods : hyperosmotic pressure animal model was established by administering 3 % sodium chloride as drinking water to rats or increasing osmotic pressure of the culture medium. osmoregulation positions in the brain, reciprocal projection pathways between the medullary visceral zone ( mvz ) and supraoptic nucleus ( son ) or hypothalamic paraventricular nucleus ( pvn ), oscillation of intracellular calcium in cultured neurons and astrocytes were studied by means of anti - fos, glial fibrillary acidic protein ( gfap ), tyrosine hydroxylase ( th ) or vasopressin ( vp ) multiple imrnunohistochemical staining, immuno - electronic microscope, wga - hrp retrogradely tracing and cell culture methods. results : ( 1 ) fos positive neurons within the mvz, parabrachial nuclei, locus ceruleus, pvn, son, subfomical organ increased markedly

    方法:通過給予大鼠飲用3氯化鈉或提高培養基滲透壓濃度的方法復制高滲刺激模型,主要採用抗fos 、膠質原纖維酸性蛋白( gfap )和酪氨酸羥化酶( th ) (或加壓素? vp )免疫組織化學多重染色、免疫電鏡、 wga - hrp束路追蹤結合免疫組織化學多重染色、細胞培養等實驗方法,系統觀察了中樞參與滲透壓反射的調控部位、下丘腦視上核( son )神經元? ast超微結構的變化、延髓內臟( mvz )和son及下丘腦室旁核( pvn )之往返投射通路和神經元的性質及其與ast的關系、培養神經元和ast內鈣的變化。
  14. The main research works of this dissertation are aimed to design of radar waveform and the application of wavelets in ultra - wide radar, including : the design of a new kind of hybrid radar and the research of time side - lobe suppression for pulse compression, the design of receiver r adio front end in data acquisition of ultra - wide band radar, the time delay estimation based on wavelets ( packet ) analysis

    本文主要進行雷達形設計研究以及研究小理論在超寬雷達中的應用,集中體現在以下幾個方面:一類新的組合雷達形設計及壓縮脈沖時旁瓣抑制技術研究、超寬雷達多通道數據採集方法中前端射頻接收部分的設計及研製、基於小(包)方法的時延估計方法。
  15. She was stirred by this thought, angered by that - her own injustice, hurstwood s, drouet s, their respective qualities of kindness and favour, the threat of the world outside, in which she had failed once before, the impossibility of this state inside, where the chambers were no longer justly hers, the effect of the argument upon her nerves, all combined to make her a mass of jangling fibres - an anchorless, storm - beaten little craft which could do absolutely nothing but drift

    她想到出外謀生的艱難-她已經失敗過一次了。她又想到不可能再留在這里了,她已經沒有資格住在這些房里了。這些思緒再加上吵架給神經來的壓力,使她的思想就像一團亂麻,理不出個頭緒來-一條沒有錨的小船受風雨的擺布,除了隨逐流,無能為力。
  16. Chapter 2 introduces the principle theory of lna, harmonic mixer, multiplier, spdt, vco and the basic design flows of the ads examples ( x - band ), the power combine technology, the millimeter - wave power amplifier mmics ’ trends nowadays

    第三章介紹了毫米前端中無源電路的設計,包括毫米器的設計、微和中頻濾器的設計、導到微的過渡、微信號的層過渡。
  17. The joint transform correlator ( jtc ) is paid more attention by researchers than the matched filtering correlator ( mfc ) with its advantages, such as high spatial bandwidth product, without integrated filtering and real - time operation etc. photorefractive crystals have some advantages, such as fast response, high spatial resolution and large storage capacity etc. we can exert both advantages by combining the photorefractive crystal with the jtc

    與匹配濾相關器相比,聯合變換相關器具有諸多優點,如空寬積高、無需濾綜合、易於實時操作等,所以近年來更加引起人們的研究興趣。光折變晶體具有響應速度快、空解析度高、存儲容量大等優點。將光折變晶體與聯合變換相關器相結合構成光折變聯合變換相關器,就可以充分發揮二者的優勢。
  18. Mido - suji street that runs the center of the shinsaibashi is the main street of osaka that links the downtown kita ( north ) around umeda and the downtown minami ( south ) around the shisaibashi and namba districts

    穿過心齋橋中的御堂筋,是一條將以梅田為中心的「北」繁華街區和心齋橋、難的「南」繁華街區連接在一起的主要大道。
  19. With the inherent relation between spotlight mode sar and stripmap mode sar, a method that stripmap sar imaging is performed by multiple - subpatch processing algorithm based on spotlight mode sar is also proposed in chapter 2. in the method, we study how to choose scene size to avoid significant motion through resolution cells and develop the formula of filter bandwidth determined by scene size

    論文第二章還詳細分析了條模式與聚束照射模式之的區別及聯系,提出了一種基於聚束照射sar成像演算法實現條數據處理的方法,對成像區大小的選擇作了分析,推導出成像區長度與濾寬應當滿足的關系式,並用實測數據進行了驗證。
  20. Based on the universal theory of one - dimensional steady state photorefractive solitons, this paper describes all kinds of one - dimensional steady state spatial solitons in the photorefractive or photovoltaic - photorefractive medium with or without a resistor in the external circuit. the steady - state solutions of the evolution equation are given and then the physical properties of the photorefractive solitons are discussed

    依據穩態光折變空孤子的統一理論,推導了光有分壓電阻的光伏或光伏光折變晶體小的傳播方程,利用數值方法求解了此方程的明、暗孤子解,討論了三種穩態光折變孤子的物理特性。
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