磁差變化 的英文怎麼說

中文拼音 [cíchābiànhuà]
磁差變化 英文
variation change
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  1. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  2. The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north

    實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。
  3. At present, differential protection is often used as the main protection for traction transformers. however, the existing of certain factors, such as magnetizing inrush, over - excitation, ct saturation and mismatching of ct ratio, will result in that it is hard to distinguish state current and fault current, and differential protection misoperation or maloperation, then secure operation of electric railways system will be threatened

    目前，牽引變壓器通常採用差動保護作為主保護，但是在某些因數的影響下差動保護並不能準確的區分牽引變壓器內部故障或非內部故障，如故障電流與變壓器處于勵磁涌流、過勵磁， ct飽和及ct變比不匹配等情況下的狀態電流就很難準確的區分，可能造成保護誤動或拒動，從而危及整個鐵道電氣化系統的安全運行。
  4. With this technique, one can get rid of the difficulties in geological interpretation caused by considerable variation in the measuring work and remarkable difference in response characteristics of different airborne electromagnetic systems

    它擺脫了測量工作中高度的變化以及不同航空電磁系統響應性狀差異很大給地質解釋工作造成的困難。
  5. The accurate calculation of the input voltage and the compensation for the dc - offset error and the variation of the stator resistance are important factors in practical implementation of the integration since they can cause a drift in the stator flux linkage trajectory and furthermore deteriorate the quality of torque control

    因此，輸入電壓的準確計算、直流漂移量的補償以及定子電阻變化的補償都是影響積分計算準確性的重要因素，這些誤差會導致定子磁鏈軌跡的偏移，進而降低系統轉矩控制的性能。
  6. The difference between the magnetic moments for the samples with respective doping level can be ascribed to the variation of the competition between thermal effect and the magnetic coupling. based on the spin orientation rotation of dy sublattice as well as the antiferomagnetic coupling between dy sublattice and mn sublattice, we successfully elucidate the changes of magnetic structure in perovskite compounds s. electron spin resonance ( esr ) study on perovskite compounds on the basis of chapter 4, we give further study on micromagneticism of dy - doping perovskite compounds la0. 67 - xdyxsr0. 33mno3

    其中第一節簡單回顧了早期對a位雙稀土元素元素摻雜鈣鈦礦化合物的研究，早期研究較多的是替代元素的離子半徑變化上，由於替代離子半徑的改變，使a位平均半徑變ylll化，致使公差因子改變，使mn o長、鍵角變化，晶格效應的作用使化合物的磁性、電性、 cmr效應發生改變。
  7. The observer makes use of motor parameters to estimate speed, but these parameters ( stator and rotor resistance, magnetizing inductance ) will vary because of the change of environmental temperature, iron loss and main flux saturation. so parameter variation will lead to the error of estimation, the purpose of this paper is to study the influence and the compensation of parameter variation

    因為觀測器在估計轉速時利用的是電機的額定參數，而電機的參數（定子電阻、轉子電阻、勵磁電感）由於環境溫度的變化、鐵心損耗和主磁飽和的影響將發生變化，所以必然有估計誤差產生。
  8. The advantage of this method is that, the compensation loop is applied for eliminating the change of toroidal flux produced by the toroidal coils and the adjustable structure can be used to decrease the error signals come from the poloidal field

    該方法的優點是補償線圈有效地消除了縱場線圈產生的磁通變化，而調節機構能降低來自極向場的誤差信號。
  9. This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave

    本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。
  10. Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis

    定子電阻變化，直流母線電壓漂移，開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償，提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。
  11. The cold model of helical traveling wave tube ( twt ) and the hot model of beam - wave interaction have been developed, based on three - dimensional twt - cad technology, to analytically, to analytically evaluate influence of small variations in helical slow - wave circuit parameters, within or without the manufacturing tolerances, on cold - hot characteristics of the helical twt

    摘要藉助於行波管cad技術的發展，建立了螺旋線行波管三維電磁冷模型和注波互作用大信號模型，就螺旋慢波電路參數在公差范圍內外做細微變化時，所帶來行波管冷熱特性的影響進行了全面研究和討論，得出了一些有用結論。
  12. After transport property measurements, it is found that there is 80k deference between the two cusp temperatures in resistivity - temperature curves ( tm - i ) of the two films grown on srtio ( 001 } and ndgao ( 110 ). at the same time, the resistivity of the film on srtio ( 001 } is 50 times higher than that of the film on ndgao ( 110 )

    分別生長于srtio大00 ）及ndgao人110 ）上，並分別介紹其性質，對各自電阻，磁阻變化進行了解釋；然後對比二者輸運性質之間的各種差異（金屬絕緣體轉變點的電阻率分別為13和0
  13. Abstract : this paper proposes an self - adaptive speed - accommodating control circuit, which can get the speed - error, and can test the change of frequency of feedback signals of the single phase ac tacho generator through self comparing and automatically corrects the speed

    文摘:文章介紹了通過自比較來檢測錄音機主導軸單相永磁交流測速發電機反饋信號的頻率變化，從而獲得速度誤差，並自動校正轉速的一種自適應速度調節控制電路。
  14. The effects of the error of ct and vt, hysteresis and load variation to short - circuit reactances are discussed also. by using error analysis and simulation analysis, this paper discussed the feasibility in engineering

    論文分析了互感器誤差在幾種情況下對短路電抗測量結果的影響；通過變壓器建模，分析了磁滯特性和負載變化量大小對短路電抗測量結果的影響，驗證了該方法在工程應用上的可行性。
  15. To obtain the mechanism, we find the temperature " contribution to the magnetic anisotropy. the change of the temperature have a main effect on the occupied probability to all the energy levels. to the diverse crystal site, the probability is not identical

    為進一步分析ergag石榴石磁性各向異性的產生機理，我們計算溫度的變化對ergag磁化的貢獻，發現溫度的變化對不同方向磁化的影響也很大，溫度的變化影響了離子占據能級的幾率，並且沿不同磁化方向，對不同晶座，溫度的影響也有著不同的差異。
  16. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    本文較為系統地給出了海南地區電離層的參數變化特徵，特別是得到了一些暴時與以往不同的季節特性；第一次給出了海南地區的電離層等離子體漂移特徵，發現等離子體漂移暴時擾動在三個方向上有內在的聯系，得到了電場變化曲線；研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別；通過對強磁擾動事件期間的參數變化特性分析發現，在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區，高密度區底部電子密度梯度隨高度急劇增加，該區域的水平尺度可達100公里以上時間尺度約為2小時，連續出現過三次，這是一個在海南從來未發現的新現象；研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
  17. Chemical - shift magnetic resonance ( mr ) imaging is gradually accepted as a useful technique to distinguish benign adrenal lesions from malignant counterparts based on in - phase and out - of - phase gradient - echo pulse sequences

    摘要化學相差磁振造影中，順相及逆相脈沖序最之腫瘤訊號強度的變化，應用在臨床上分辨腎上腺良性或惡性腺瘤是有用且逐漸被接受的圖象診斷工具。
  18. Because limited by the sampling channel of transient electromagnetic measuring depth fieldwork curve ( generally 20 ~ 40 channels ), the smoothing degree of fieldwork curve is not very good, it make against the differential imaging treatment. in order to hold the continuous change characters of the curve and seek the voltage exactly, we use the thrice spline insert number function to reconstruct the fieldwork data ; 4

    ） t ； 3 .由於受瞬變電磁測深實測曲線取樣道的限制（一般為20 ~ 40道） ，實測曲線光滑程度較差，不利於微分成像處理，為了更好的把握曲線連續變化的特徵及準確求導，採用了三次樣條插值對實測數據進行重構;續
  19. At last, taking advantage of the finite differential time domain method and it ' s perfect match layer absorbcfacient border, we got the energy distribution in a typical micro - disk laser and simulated the radiation between q value and the radius of the micro - disk

    最後運用電磁場時域有限差分法（ fdtd ） ，採用具有很好吸收效果的完全匹配層吸收邊界，研究了典型微盤激光器的能量分佈以及微盤的q值隨微盤半徑尺寸的變化。
  20. When the content of nife _ ( 2 ) o _ ( 4 ) reaches to 30 %, the maximum mr value gets to - 6 % at the temperature from 310k to 340k, and the resistivity ranges from 1354 to 646 cm, where applied magnetic field is 1. 8t. it is interesting that the mr value is negative which is different from that of the usual material ; 4. with the decreasing of sr contents, the resistivity of composite samples ( nd _ ( 1 - x ) sr _ ( x ) mno _ ( 3 ) ) _ ( 0. 7 ) / ( nife _ ( 2 ) o _ ( 4 ) ) _ ( 0. 3 ) changes apparently, at the same time, the mr gets worse ; 5

    3系列復合樣品的電阻率顯著變化，同時磁電阻性能逐漸變差; 5 .隨著cu含量的增大，伽嘶67sr033mnl一uyo3 ） 07 /困ifezo4 ） 03系列復合樣品的電阻率顯著變化，同時磁電阻性能得到明顯改善，當cu含量增大到y = 0 . 2時，樣品磁電阻值在293k到317k較寬的溫度范圍內基本保持在一13 . 6 % ，隨溫度變化很小，由於該溫區恰好在室溫范圍且溫區寬，因而具有很好的潛在應用價值。
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