radiation formula 中文意思是什麼
radiation formula
解釋
輻射公式-
Then, using the opening transmission line model, the deduction of the tem - horn antenna far - field radiation formula is introduced. comparing with the traditional nb antenna array, the brief theory of uwb antenna is analyzed
然後介紹了應用開路傳輸線理論模型對tem喇叭天線軸上遠場輻射的推導過程，並對比傳統窄帶天線陣列，分析了超寬帶天線陣列的一般工作原理。 -
Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system. it contains complex partial waves that are not physical. the standing wave representation of the same formula is shown to be covariant and physical. it is applied to solve the boundary value problem of fiber optics. the radiation modes as well as the guided normal modes are obtained in closed forms. the intensity distribution in various modes is obtained. it is remarked that the mode of critical refraction is missing
文摘:說明了球面行波的索末菲公式在坐標轉動下不協變.證明了球面波的駐波表示是協變的，因而是一個物理的關系式，故適用於圓柱坐標中各類波動方程的定解問題.作為一個例，應用於光纖光學，導出了受導簡正模和輻射模的表達式，以及各模式的強度分佈 -
Nuclear reaction is the important mechanism for causing single event upset as well, especially for high - energy protons. all the formula needed for simulating proton - induced radiation effects are deduced. to bypass the obstacle of lacking nuclear reaction parameters of high - energy protons interacting with silicon, the author successfully obtained the necessary nuclear reaction cross sections by combining an intranuclear cascade nuclear reaction model with monte - carlo simulation, which are applied to the calculation of seu
整理、推導了數值模擬所需要的計算公式及連續慢化近似下的輸運方程，自行編制了輻射屏蔽計算程序、單粒子效應計算程序、熱?力學效應計算程序，並對所有計算程序進行了對應的驗算，計算結果與公開發表的理論或實驗結果相符合。 -
The formula adds doses from various radiation types.
公式是把不同類型的輻射所產生的劑量相加的。 -
The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system
本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。 -
Reference to the convention means of the analysis and research for energy spectrum hardening and photon scattering in internal and external, and based on the physical mechanism of radial interacts with matter, this paper approximatively deduce a theoretical formula of correction of energy spectrum hardening and scattered radiation in transmission industrial x - ray computerized tomography from a ideal model. and presented a correction computer program
本文在分析研究國內外有關射線能譜硬化和散射修正問題的分析方法及其研究狀況的基礎上，從射線同物質相互作用的物理學機理出發，從理論上近似推導了x射線能譜硬化和散射修正計算公式，建立了散射修正的分析模型，並編制了相應的計算機修正程序。 -
The third chapter is experiment analyses of multi - aperture transient electromagnetic method, it analyzes multi - aperture transient method in theory and discusses radiation direction characteristic of first field by means phased array theory and integrating result of experiment contrast. according to kinematics character it also brings forward similar interference concept and analyzes reason of similar interference phenomenon, it gained footing between similar interference item and depth on the base of it and experiment formula
藉助于相控陣原理的思想，結合模擬實驗觀測值對比結果，對多孔徑tem方法進行模型分析，詳細討論了多孔徑一次場的輻射方向特性，利用光波的運動學特徵提出類相干的概念，分析了多孔徑tem輻射源存在類相干現象，推導出類相干實驗公式，並得出類相干項與多孔徑框邊長以及埋深的關系表達式和。 -
Based on an advanced formula, the plastic parts are made of injection - molded, high - strength engineering plastic pc by numerical control equipment, therefore effectively prevent products from aging caused by coldness, heat, oxygen and ultraviolet radiation
整套接頭筒塑件採用科學配方的高強度pc工程塑料，經過數控設備注塑成型，能有效地阻止大自然中冷熱氧和紫外線引起的材料老化，並且具有優良的力學強度。 -
The radiation spectrum for relativistic electron moving along curved spiral curve in plasmas is calculated, and also the formula of total energy emitted by a relativistic electron in vacua is derived
計算了等離子體介質中，沿彎曲螺旋線運動的相對論電子的輻射譜，進一步導出了真空中的能量輻射公式 -
3. the formula with more precise is developed on the theory of color and the effects of flame radiation. the visual temperature field is provided for operator
3 .利用色度學理論、輻射定理和火焰的輻射特性，並經過推導與分析，得到了相對精度較高的溫度場計算公式，為運行人員提供了燃燒相對溫度場圖像。 -
Thirdly, considering when acoustic wave with a certain frequency or angle is incident upon plates, it will greatly cause the radiation power " translating. this paper details the causes of coincident effect and gets the calculating formula. the conclusion is resulted that thick plate and uniaxial anisotropies can lower critical frequency
針對聲波入射板面時在某一特定頻率或特定入射角度時會使聲輻射能力大大增加並產生聲能的大量透射這一現象，詳細討論了產生吻合效應的條件；並針對工程實際中所應用到的各種尺寸、材質的板分別推導了其吻合頻率和臨界頻率的計算公式，得出了厚板和材料的各向異性均會使結構的臨界頻率下降的結論。 -
First, under the given boundary condition and reasonable simplified condition, this paper develops radiation transmitting equations in atmosphere applied in infrared waveband and visual light waveband from common equation of radiation transmitting. then, the formula between observation of satellite and net surface radiation is established according to the developed equations, from which it is found that net surface radiation is relative to sun zenith, land surface and cloud albedo, etc. at last, by using data of satellite visual light ( vis ), infrared 1 ( ir1 ), infrared 2 ( ir2 ) and water vapor ( ir3 ) channel, sun zenith and net surface radiation, a regression formula is built
本文從大氣中太陽輻射傳輸的一般性方程入手，引入邊界條件及簡化條件，推導出紅外波段和可見光波段的大氣輻射傳輸方程，由此建立起衛星觀測輻射與地面凈輻射的關系，文章還就衛星觀測到的輻射與雲量、雲高、雲的光學厚度、雲及地面反照率等之間的關系進行了理論分析，可以幫助更好地理解雲對地面凈輻射的影響。 -
Firstly, by the analysis ir radiation characteristic of target on environmental background, and the attenuation characteristic of ir radiation through atmosphere, the calculation formula of ir radiation of target is discussed. the design ideas and implementation method to generate dynamic ir images with computer are addressed in this paper
首先，分析了目標的紅外特性，以及環境對目標的紅外輻射的影響，目標輻射在大氣中的衰減，給出了相應的計算公式，本文論述了動態紅外成像的設計思路和實現方法。 -
As the physical theoretical basis, fundamentals of gas infrared radiation and absorption > molecular spectrum are presented. additionally, laws of flame infrared radiation and absorption are detailed introduced ; the principle formula and practical calculation methods are deduced
作為物理學理論基礎，本文首先介紹了氣體紅外輻射和吸收、分子光譜等方面基礎知識，在此基礎上，推導出火焰輻射和吸收的基本性質，並給出了實用的計算公式。 -
The formula is sometimes used in connection with the scattering of radiation.
該公式在討論輻射散射問題時，有時要用到。 -
The formula can be used to calculate surface radiation budget ( srb ) in large - scale numerical models, to make it possible that the calculation of srb is synchronized with model integration
該參數化公式可以用於大尺度數值模式中地表輻射平衡的計算，以期達到地表輻射平衡計算與模式積分同步進行的目的。 -
Two simulation methods of radiation condition are used in this paper. the first one is the matching method and the other one is the mtf ( multi - transmitting formula ) method
遠方輻射條件的模擬探討了兩種方法，一種方法是匹配積分方程方法，另一種是應用透射理論的人工邊界方法。
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