beam diameter 中文意思是什麼

beam diameter 解釋
波束直徑
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  1. Then an thorough computer modeling using finite element program with material, geometry and state triple - nonlinear taken into account is carried out on a series of influencing factors, such as comparison with npn - beam splice connection, comparison of varies designed theories, and the varying of fraction coefficient, diameter, grade, pretension and arrangement of bolts, thickness of web and flanges of beam and column, splicing location, axial loading on column, etc. lots of useful conclusions are drawn form computer modelling. finally, design and construction suggestions are given out. this study fills the black in the field of steel beam - to - column connection with cantilever beam high - strength bolted - splicing at both home and abroad

    然後，本文在考慮材料、幾何和狀態三重非線性的基礎上，對該連接形式進行了全面的計算機模擬，主要考慮了帶懸臂梁段全螺栓拼接的樑柱連接節點與無拼接的樑柱連接及翼緣對接焊接腹板拼接的連接節點的對比，各種設計方法之間的對比，以及翼緣拼接和腹板拼接的螺栓間距、直徑和數量，拼接點與梁端之間的距離，梁和柱的翼緣、腹板厚度，柱的軸力，接觸面的摩擦系數，翼緣和腹板拼接板的厚度等因素的影響。
  2. Effect of beam diameter for high accuracy laser damage testing

    高精度損傷閾值測量中測試口徑效應研究
  3. On the basis of theories of physics, geometrical optics and photometry, the optical properties of collimated light beam incident upon single fiber perpendicular to the fiber axis are studied. by exploring the behaviors of reflected light and transmitted light from single fiber, the distribution of the light is described and the proportionalities between the intensity of the reflected, transmitted and scatered light are obtained respectively, and the different laws governing the intensity of diffused light and transmitted light from single fiber between near and far field are discussed. experiments demonstrate that the decrease of projecting light in far field is in direct proportion for the increase of fiber diameter, which serves as the theoretical basis for a series optics equations, as well as for the designment for photoelectric deviccs for detecting fibers

    結合物理學的基本原理和幾何光學的基本規律以及光度學的基礎理論等三方面，研究了單纖維在平行均勻光束垂軸入射時的光學性質.分析了單纖維反光和透光的特徵，光強分佈及反射光、透射光和散射光的相對大小;討論了在近場和遠場條件下，漫反射光和透射光光強的不同規律;通過實驗驗證了遠場時，纖維的漫射光強度與纖維直徑成正比的關系
  4. Testing method of beam diameter of laser radiation

    激光輻射光束直徑測試方法
  5. As a rule of thumb, the minimum device feature is about 4 times the beam diameter.

    一般來說，最小器件圖形大約是電子束直徑的4倍。
  6. The paper mainly focused on the beam transport part of asipp key laboratory of ion beam bioengineering and it ' s component elements, for example, van de graff accelerator, bending magnet, magnetic quadruple lenses, beam shutter, collimator and so on. the laboratory has performed the milestone achievement that is beam passed the hole of lo ^ m diameter in experiments. many experimental results are discussed by theories according to experiments

    本文重點討論了中科院離子束生物工程學重點實驗室單粒子束裝置的束流傳輸部分，對主要部件進行了詳細的討論，如：靜電加速器、偏轉磁鐵、磁四極透鏡、束線開關、瞄準器等，實驗中已取得束流穿過10 m小孔的標志性成果，並運用相關理論結合具體實驗分析了實驗結果。
  7. When various diameter particles are irradiated by a collimated laser light beam, light scattering phenomenon takes place, and the scattering light parameter include the information of the particles size distribution. mie scattering theory is the fundamental principle of the particle size measuring instruments and its computations are complicate

    微型化霧粒粒徑分佈測量儀的測量原理是米氏光散射理論，當不同粒徑的顆粒被平行激光束照射后，發生光散射現象，散射光的參數包含有被測顆粒粒徑的信息，但其數值計算量大且復雜。
  8. Under our task experimental condition, we calculated the sensitivity of our planning to develop dial system with direct detection, besides, we studied the relationship between the sensitivity of measurement and atmospheric refractive - index structure constant and applied matlab program simulated the system parameters such as beam diameter, laser divergence angle, detection distance and gained relevant relationship curves

    在課題實驗條件下，模擬計算了直接檢測dial系統的測量靈敏度。在考慮大氣折射率結構常數對系統測量靈敏度影響的基礎上，並對各種系統參數如光束半徑、束散角和探測距離對測量靈敏度的影響運用matlab程序做了模擬計算，為合理選擇系統設計參數提供了依據。
  9. ( 3 ) we explore photorefractive screening solitons and characters of beam transmission in sbn : 61 : cr crystals. the dependence of beam diameter at the crystal output face on applied field is presented. and influences of the limiting space charge field of the crystals on the experimental results are analyzed

    （ 3 ）初步研究了兩塊不同摻cr濃度的sbn 61 cr晶體中的屏蔽型空間孤子效應，以及不同外加直流電場作用下光束在晶體中的傳輸，給出了晶體出射表面處光斑直徑隨外電場的變化曲線，並分析了晶體中空間電荷場的飽和效應對實驗結果的影響。
  10. A single - ion microbeam facility is a set of system that can limit the diameter of the ion beam to the micron level and can deliver defined numbers of ions into an defined area of a cell

    單粒子束裝置（ single - ionmicrobeamfacility ）是一種可以將粒子束的束徑限制在微米量級的范圍內，並將預定個數的粒子注入到細胞中的某一指定位置的輻射裝置。
  11. A single - ion microbeam facility is a set of radiation system that can limit the diameter of the ion beam to the micron level and can deliver predefined numbers of ions into a predefined area of a cell

    單粒子束裝置（ single - ionmicrobeamfacility ）是一種可以將粒子束的束徑限制在微米量級的范圍內，並將預定個數的粒子注入到細胞中的某一指定位置的輻射裝置。
  12. The results showed that the processing parameters ( such as laser power, the diameter of laser, scanning speed of laser beam, ratio of overlapping ) are important to acquire a perfect component. furthermore, in order to assure geometric properties ( accuracy, surface finish ), the structure of the off - axial powder nozzle was improved to avoid the oxidation of the molten pool. the density metal test sample of rene95 high - temperature alloy was made by lsf through optimizing the processing parameters

    本文對激光立體成形的工藝特性進行了深入系統的研究，發現如果要獲得理想的成形效果，就必須對成形過程中的工藝參數進行精密控制，例如激光功率、激光光斑大小、光束掃描速度、搭接率等；同時為了保證成形件有較高的尺寸精度和表面質量，必須對成形零件的氧化問題進行控制，通過改進側向送粉噴嘴的結構設計，成形件的表面氧化問題得到適度控制。
  13. Just under 3 feet in diameter and weighing 45 pounds, the black circular device emits an intense 15 - to 30 - degree - wide acoustic beam - - a high - pitched shrill tone similar to a smoke detector alarm - - that can easily cause permanent auditory damage at close range

    僅僅在3尺之下在直徑中的秤重45磅，黑色的圓形裝置發出強烈的15 -達到30程度-寬的聽覺光線- -一尖銳的尖銳聲音明暗相似的對煙發現者警報- -那能容易地因素燙發聽眾席損害在結束范圍。
  14. The experiments have tested the rigidity of connections that is the m curve of connections, researched two kinds of destruction modes of beam - to - column connections, analyzed stress of the plate and the influence of the member ' s plate thickness, the quantity of self - drilling screws, the diameter of self - drilling screws, the interval of self - drilling screws to the rigidity of connections

    實驗針對連接節點的剛度即連接的m曲線進行了測試，並著重研究樑柱節點的兩種破壞模式，分析了板域的應力分佈以及構件的板厚、連接螺釘的數量、直徑以及螺釘間距對連接節點剛度的影響。
  15. Reforming beam pumping unit into dual variable - diameter wheel pumping unit

    由游梁式抽油機改造成的雙變徑輪式抽油機
  16. Avm is essentially a precision array film attenuator, which has a big diameter, high power load, continuous adjustment. the gain of each beam of the main amplifiers is controlled independently by the adjusting the angle of each cell of avm

    Avm實質上是大口徑、高功率負載、透過率連續可調的組合式精密薄膜衰減器，通過調節avm各單元偏轉角度大小來獨立控制住放大器各路的增益。
  17. Using the general finite element programming package of ansys10. 0, the study of gabled frames beam - column end - plate connections is made, considering synthetically nonlinear ( material, geometry and contact ), bolt pretension forces and ratio of axial compression stress to strength. elastic - plastic finite element analyses are carried out among 28 species of 3 series under monotonic loads, in order to discuss the influence of parameters including stiffness of end - plate, bolt diameter, friction coefficients and so on

    本文使用通用有限元軟體ansys10 . 0綜合考慮了三重非線性（材料非線性、幾何非線性以及狀態非線性）的影響，同時考慮了螺栓預拉力的影響，對考慮端板厚度、端板加勁肋的設置、螺栓直徑、摩擦系數等參數不同的3個系列（端板系列，螺栓直徑系列，摩擦系數系列） 28個試件進行了有限元數值模擬，對連接節點的性能進行了分析研究。
  18. The main achievements were summarized in detail as follows : ( 1 ) the cfdst tubular beams, columns and beam - columns with chs outer steel tubes were tested systematically. the main experimental parameters were tube diameter - to - thickness ratio, hollow section ratio, eccentricity and slenderness ratio. ( 2 ) load - deformation relationship curves of cfdst subjected to compression and bending were analyzed by finite element method and fiber element method

    本文具體進行了以下幾個方面的工作: （ 1 ）分別以徑厚比、空心率、長細比、偏心距等為主要變化參數，較系統地進行了軸壓、純彎和壓彎構件在單調加載下的試驗研究。
  19. The special light beam modulator is a disc that rotates at high speed, symmetrically along its diameter is respectively arranged a slit and a small hole, the slit is used to modulate light beam, the small hole is used to the synchrosystem and measure speed of modulator

    該調制器為一高速旋轉圓盤，其上沿軸向刻制細縫，在圓盤對稱位置開小孔；細縫用於調制光束，小孔用於系統同步及調制器轉速測定。
  20. Cigarettes and filter rods. determination of nominal diameter. method using ? laser beam measuring apparatus

    卷煙和過濾咀.標稱直徑的測定.使用激光束測量儀法
分享友人
分享到 Line

分享到臉書