near field 中文意思是什麼

near field 解釋
近場
  • near : adv 1 近 接近 鄰接 （opp far）。2 〈口語〉幾乎 差不多 將近。3 節省地。prep 接近 在…的近旁；快要。...
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  1. And it is also found that the polarized incident gauss beam become depolarized after emitting from the bottom of solid immersion lens. the beam dimension of the emitting optical field at the near - field bottom of solid immersion lens is " broadened "

    在固體浸沒透鏡底面的近場區域，出射光場發生了退極化，使得出射總場的光斑有了一定程度的「增寬」現象。
  2. We collect distributing of near - field of optical switch output - port. using gaussian curve fit, we measure the extinction ratio of " bar channel " is 8db, and the extinction ratio of " cross channel " is more than 18db

    利用紅外攝像機採集的光開關輸出的近場分佈，採用對場光場能量高斯擬合的近似方法，測得該關注入光開關的直通端的消光比可以達到8db ，而反射端的消光比則至少可以達到18db以上。
  3. In this article, the fundamental principle and current research of optical data storage including cd and dvd, three - dimensional optical data storage and near - field high - density optical data storage are summarized. a two - dimensional finite difference time domain program for analysis of solid immersion lens system is compiled

    本論文概述了已產業化的以cd和dvd為代表的光盤存儲技術和在開發中的高密度光存儲技術（主要包括三維光數據存儲技術及近場光學超高密度光存儲技術）的原理及研究現狀。
  4. The optical near - field distribution and propagation properties of solid immersion lens system are analyzed in detail when illuminated by linearly polarized focusing gauss beam. the change of the optical intensity and beam dimension at the bottom of solid immersion lens with different refractive index and different distance are discussed. the simulated results reveal that the higher the refractive index is, the stronger the optical intensity and the smaller the beam dimension at the bottom of the solid immersion lens will be

    編制了對固體浸沒透鏡近場超高密度光存儲系統進行模擬的二維時域有限差分程序，實現了對固體浸沒透鏡光存儲系統的數值模擬；著重研究了線偏振的高斯光束通過固體浸沒透鏡的光傳輸和近場光場分佈特性；分析了固體浸沒透鏡底面出射光強、光斑直徑隨固體浸沒透鏡折射率的變化、光透過固體浸沒透鏡后的強度、光斑直徑隨離開固體浸沒透鏡底面距離的變化。
  5. With wide stripes, however, higher order lateral modes are generally dominant as seen in the near-field micrograph of fig. 7. 7. 1.

    但是，當條形較寬時，一般都是高階橫模占優勢，這可以從圖771的近場顯微照片看出來。
  6. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。
  7. 2. study on near - field properties of ring plunger

    研究了單個圓環的近聲場指向性。
  8. Analysis of near field seism

    近場地震淺析
  9. Moment method is used for the analysis of interference among the vehicular multiple antennae in this paper. the multiple antennae system is equivalent to a microwave network, then the admittance matrix of the network can be obtained. using the admittance matrix, we can analyze the characteristic of coupling between two antennae and the near field of the antennae by the mom

    本文採用矩量法對車載多天線間的相互干擾特性進行了分析，將多天線系統等效為微波網路，然後採用矩量法求該網路的導納矩陣y ，利用該導納矩陣對天線間互耦特性進行分析，同時計算天線的近場分佈。
  10. Study on the near - field optical storage property of bacteriorhodopsin

    細菌視紫紅質近場光存儲特性的研究
  11. The model - based parameter estimation ( mbpe ) is firstly applied to the near - field measurement in this thesis to deal with the near - field sampling data in space and spectrum domains respectively

    本文首次在天線近場測量中採用了基於模型的參數估計技術，在空域和頻域內分別對近場采樣的數據進行處理。
  12. The vector - based plane - wave spectrum method ( vpws ) is improved, which can directly obtain the far field diffractive pattern depending on the output near field data in the bor fdtd meshes by use of the deduced formulas in this dissertation

    改進了平面波譜傳播演算法（ vpws ） ，推導出的公式可以由borfdtd計算空間內的近場輸出數據直接計算出遠場的電磁場分佈。
  13. The method can simulate light scattering behavior on the condition of single layer and multiple layers, and preferably deals with reflection and transmission between layers, with a good agreement with literature results. 3. laser beam scattering by an object in near field is studied

    該演算法可用於模擬計算單層和多層塗層，平行平面結構和粗糙表面情況下的光散射行為，較好地處理多層塗層結構中各層間的反射和透射，模擬結果與文獻結果吻合的很好。
  14. A simulative algorithm of laser beam scattering by an object in near field is given. based on the algorithm, a simulative software is worked. and by using geometrical modeling and hiding, the received power of remote system for f16 airplane, as an example, is computed

    4 、提出激光引信目標近場散射特性模擬演算法，編制了模擬軟體，並以f16飛機為例，通過幾何建模和消隱處理，計算了目標不同姿態、不同脫靶量和不同脫靶方位角時，彈目交會過程激光引信接收系統的接收功率。
  15. A novel joint estimation algorithm for ranges, frequencies and doas of multiple near - field narrowband sources is proposed in the near field is proposed

    摘要提出了一種新的多個近場窄帶信源距離、頻率及到達角三維參數的聯合估計演算法。
  16. First, in virtual of identification of flaws is a typical of in - verse problems, proceeding from time - harmonic electromagnetic maxwell ' s equa - tion and helmholtz equation, the uniqueness and existence of direct scattering problems including the numerical algorithms of diverse of boundary conditions is given. second, the uniqueness and existence of inverse scattering problems and the theory of ill - posed integral equation are briefly looked back upon. finally, indicator function method for boundary identification is set up under all kinds of boundary conditions for inverse scattering of homogenous and inhomogenous objects, meanwhile, the proof of possibility for near - field measurements and nu - merical simulation are given

    由於缺陷的識別是一類典型的反問題，因而首先從時諧電磁maxwell方程和helmholz方程出發，具體地闡述了求解正散射問題的有關方法，包括各種（夾雜）邊界條件下的數值解法，就解的存在性唯一性給予了肯定的回答；隨后對逆散射問題的理論作了簡短的回顧，包括解的唯一性以及非線性不適定積分方程的處理等；然後對均勻介質和非均勻介質的逆散射問題建立了在各種邊界條件下的邊界識別的指示函數方法，鑒于近場數據獲得的重要性，對近場測試時邊界識別的方法給予了相應的證明，並且實現了數值模擬。
  17. Near field pattern

    近場圖樣
  18. A novel modularized near - field scanning optical microscopy was developed, with its modules such as tuning - fork optical fiber probe, scanning head and scanning platform etc, of high performance and easy operation

    摘要採用模塊化的設計思想，製成了高質量且簡單易用的音叉光纖探針模塊、模塊化的掃描探頭、掃描臺等，從而研製出高性能，易操作的模塊化的保偏近場掃描光學顯微鏡。
  19. The super resolution effect of sb layer super resolution structure is also investigated with near - field scanning optical microscope. in addition, a rigorous three - dimensional ( 3d ) optical electromagnetic finite - difference time - domain ( fdtd ) model for analysis of a sil system is detailed. in order to accurately analyse sil model, a new method of setting a focused gaussian beam source in fdtd grids is presented

    此外，本文還建立了對sil系統光傳輸特性進行模擬的時域有限差分程序，提出一種在fdtd模擬的離散空間設置會聚高斯光源的新方法，並模擬了會聚高斯光束在sil系統中的傳輸，研究了sil在不同離焦情況下底面出射光場幅度及光束半徑的變化規律，為sil存儲系統的優化設計提供了理論依據。
  20. A sil flying head is designed to keep the distance between sil and recording medium in near - field range. a sil optical data storage system is built up when the recording head is combined with sil flying head. meanwhile, using astigmatic focusing error detection technology and twin optical pick - up heads, a novel nontouching nanometer measurement method is developed to measure the flying height of sil, and provides us with a powerful tool to optimize the design of sil fly head

    在sil存儲技術研究方面，首先提出一種光學玻璃熱熔加工製作sil的新方法，該方法克服了小半徑球透鏡加工的難題，成功製作出了半球固體浸沒透鏡；設計了sil飛行頭系統，並利用光學頭像散法聚焦誤差檢測原理，設計出一種雙光學頭sil飛行高度測量方案，實現了sil飛行頭飛行高度的測量。
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