梯度磁場 的英文怎麼說

中文拼音 [tīdùcíchǎng]
梯度磁場 英文
gradient magnetic field
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 場 : 場Ⅰ名詞1 （平坦的空地 多用來翻曬糧食 碾軋穀物） a level open space; threshing ground 2 [方言] （...
  • 磁場 : [物理學] （傳遞運動電荷或電流之間相互作用的物理場） magnetic field
  1. This paper presents our research in actuating in - vivo micro - robot based on the capsule endoscope platform by the external power. while seeking secure driving method we take several factors into account, such as driving environment, power transmitting and consuming, motion requirement and controllability, and locating technique. we mainly deal with driving the capsule with spatial gradient magnetic field, so we employ combined electro - magnetic coils, including gradient coils and homogenous coils, which have rotational dof around a translatable patient bed, to compose a controllable uniform gradient which act on the permanent - magnet embedded robot, thereby get an appropriate spatial force and torque to fulfill the anticipant locomotion such as move, stop, pitch and yaw

    基於驅動環境、能量供給和消耗、驅動動作要求及驅動安全性與可控性，定位方案等多方面考慮，尋求安全可靠的腸胃檢查微機器人的外部驅動控制方法，並著重研究直接利用外磁場磁力驅動微機器人:在微機器人內部嵌入永磁性體，利用體外的組合電磁線圈產生加載電流控制的驅動磁場，其中外部的電磁線圈由多組梯度線圈和勻場線圈組合構成，通過繞病床的旋轉以及病床的平移共同控制微機器人所在位置的磁場強度及梯度，作用於微機器人內嵌磁體以獲得空間意義上的必要驅動力和調整轉矩，從而有效地完成驅動動作要求。
  2. Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis

    課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。
  3. When the rf pulse is combined with magnetic field gradients, a spatially encoded signal is produced that can be detected and translated into images

    當射頻脈沖與磁場梯度聯合起來時，我們可以探測到一個空間編碼信號的產生並且將它轉變成圖像。
  4. But can keep even gradient magnetic field range strong, hall ' s component can only measurement displacement among a small circle ( usually only about 1mm )

    然而，能保持均勻梯度磁場的范圍不大，霍爾元件只能小范圍（通常僅約1mm ）的測量位移。
  5. Effect of magnetic field with different strengths on the free radical concentration in sesamum indicum seeds

    梯度磁場對芝麻種子生物效應的影響
  6. According to the direction and damping characteristic of the torque produced by the magnetorquers, the three axis attitude control schemes of gravity gradient satellite and other satellite with damper is presented. the control coefficients are determined by the dynamic characteristics of geomagnetic intensity, so the attitude control precision is improved

    根據磁力矩在地磁場中的定向阻尼特性，提出了磁控重力梯度衛星和攜帶阻尼器的非重力梯度姿態控制規律，根據地磁場強度變化規律選擇控制系數，提高衛星的姿態控制精度。
  7. Surrounding these special problems met in gas hydrates exploration and through study of high - precision magnetic survey, the sea test by r / v haiyang 1y that is owned by guangzhou marine geological survey in dongsha area of the south china sea, systematical analysis of the test result and combination interpretation of magnetic survey with seismic profile, the authors successfully employ the method to recognize the truth or false of the diapir in seismic profile by integrating total field of high - precision marine magnetic measurement with its gradient change

    本文就目前天然氣水合物調查中存在的這些特殊技術問題，通過對海上高精度磁力測量技術方法研究、廣州海洋地質調查局「海洋四號」船在南海北部東沙海域的海上試驗、對試驗結果的系統研究分析以及磁測和地震剖面兩種手段的綜合解釋，成功地嘗試了用高精度海洋磁測成果中的磁力總場和梯度變化特徵來識別水合物勘探中高解析度地震剖面上的泥底辟構造真偽的技術方法。
  8. The sensitive device of magnetism is moved in the magnetic field with gradient, it can reflect the situation moved to export

    磁敏感器件在具有梯度的磁場中移動，其輸出可反映出移動的情況。
  9. In view of the fact that there is often a gradient in the external magnetic field in true magnetic separation equipment, and its direction is often not identical with that of magnetic field, a formula of the magnetic force exerting on the magnetic particles is deduced and the factors influencing the magnetic force are analysed

    考慮實際磁選設備中外部磁場常有梯度，並且磁場梯度方向常與磁場方向不一致的情況，推導出了磁性礦粒所受磁力公式，分析了影響磁力的因素。
  10. In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models

    本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。
  11. The great engineering software ansys was used to simulate the induction heating process of a continuous casting square billet in multi - physical coupling field based on the electromagnetic induction and heat exchange theory

    摘要根據電磁感應理論及傳熱基本原理，利用大型工程軟體ansys對連鑄方坯的感應補熱過程進行了多物理場耦合的有限元模擬，並對鑄坯斷面上的溫度梯度、磁場分佈等進行了分析。
  12. The system has its own style. the trapping beams can be independently adjustable and three double - passed circularly polarized cooling / trapping beams intersect at the center of mot. about 1 107 cesium atoms with equivalent temperature of ~ 270 k are successfully trapped in our vcmot

    在每束冷卻俘獲光的光強約4 . 9mw cm ~ 2 、失諧量為- 10mhz 、軸向磁場梯度約11 . 6gauss cm的條件下得到的冷原子樣品中典型的原子數約1 10 ~ 7個，溫度約270 k左右。
  13. Results show that the levitation force is generated between the high temperature superconductor and the magnetic field under the critical temperature. the value of the levitation force is determined by the temperature and the gradient of magnetic field. that is the smaller of the gap, the larger of the levitation force when the temperature is fixed, and the value of the levitation force is an exponential function of the gap

    研究表明，當高溫超導體的溫度低於其臨界溫度時，在磁場中開始受到力的作用；受到的懸浮力大小由溫度和磁場梯度共同決定；即溫度一定時，懸浮間距越小，對應的磁場梯度越大，懸浮力就越大，力的大小與懸浮間距成指數關系；而當懸浮間距一定時，溫度越低，對應的懸浮力也越大，且超導體剛進入超導態的一段溫度區間懸浮力增大最快。
  14. In part three, the physical and chemical properties of core - shell nanoparticles have been characterized by using transmission electronic microscopy, atomic force microscopy, zetasizer and alternating grade magnetometer

    第三，採用透射電子顯微鏡、原子力顯微鏡、 zeta電位分析儀、交流梯度磁場計等儀器對該類納米顆粒的物理化學性質進行了表徵。
  15. The new machine has a high gradient that allows examination of the heart in a very short period

    此臺mri具備有強勁的梯度磁場，能在極短時間內為心臟作檢查。
  16. A detailed measurement showed apparent thickness gradient in the film plane, which is interpreted as the result of the motion of particles sputtered from the target in the special - distributed magnetic field

    通過細致的測量還發現，薄膜在膜面內存在明顯的厚度梯度，這應當是沉積粒子受梯度磁場作用的結果。
  17. Clinical and mechanical studies progress on treatment of malignant tumour by ultralow frequency pulsed - gradient magnetic fields

    半梯度磁場治療惡性腫瘤的臨床和機理研究進展
  18. Old mri machines cannot be used for cardiovascular examination as they do not have strong gradients, and therefore taking a long examination time. with a long examination time, there will be an increase in number of heart beats causing motion artefact

    舊式的mri ，由於梯度磁場不夠強而未能達致要求，檢查心臟需時較久，而多次的心臟跳動容易造成活動偽影，大大降低舊式的mri檢查心臟的準確性。
  19. The biological effect of arc discharge plasma combined with gradual magnetic field on tomato seeds

    弧光等離子體與梯度磁場結合處理番茄種子的生物效應
  20. If we want to compose in a larger area a uni - gradient magnetic field, the device will be too complicated and unfit for move. it will restrict the application of hore component in displacement measuring. in order to change this situation, in this dissertation, a kind of auto - tracking measuring system is introduced

    若能在簡單磁場的條件下，通過自動跟隨系統驅動霍爾元件跟隨測量移動物體的位移，使霍爾元件盡可能地保持在均勻梯度磁場內，就可以在很大程度上增加測量范圍。
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