magnetic changes 中文意思是什麼
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When the sun's rotation sweeps this warped surface across the earth, we detect sudden changes in the polarity of the magnetic field.
當太陽的自轉使這個波浪形間隔面掃過地球時，我們就會探測到磁場極性的突然反轉。 -
The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素（ ce 、 la 、 y 、 dy ） 、能量（超聲波、磁場）介入后，沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化，表現在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結合力、表面質量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時證實了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結構由非晶態向微晶和多晶態轉變；鍍層的顯微硬度與耐磨性提高，力學性能優化；鍍層的矯頑力降低；磁導率提高；鍍層的磁化強度在能量（超聲波、磁場）和輕稀土元素ce 、 la介入后提高，重稀土元素y介入后降低。 -
A bulk magnetic material will form magnetic film when its one demension becomes very small, and its magnetism changes to some extent
當大塊磁性材料在一個維度上變得很小時，就成為磁性薄膜，其磁性也有一定的變化。 -
Since iron hearts of a very similar role to iron core magnetic - fluid changes will enable the inductance with the electrical frequency change, and therefore affect the dynamics of the electrical performance
5 .由於爪極鐵心中的渦流作用引起鐵心磁導的變化，也就使電機的電感隨頻率而變化，因此影響電機的動態性能。 -
Nirs measures only small essels and thus may be less sensitie to systemic circulatory changes than functional magnetic resonance imaging
近紅外線只檢測小血管，因此可能對于系統循環改變靈敏度不如功能磁共振成像。 -
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。 -
Some new phenomenons were discovered. the width of trigger current changes with the discharge condition, it is only 100u. s when let the trigger source work alone, but it can rise up to 300us with the arc current and magnetic field
在研究過程中發現引弧電流脈沖寬度受放電狀態的影響很大，在不引燃主弧時脈寬只有75 s ，而在引燃主弧並在加磁場的情況下會增大到300 s 。 -
3. compared and analyzed the influences to the mode of the electro - magnetic field and also the influences to the position where the plasmas produced when changes the size and the internal structure of the cavity
3 .比較分析了諧振腔的結構尺寸及其內部構造改變對電磁場模式的影響，等離子體在腔體內部的產生位置。 -
When a ferromagnetism items is under the application of stress, the phenomenon that the tangential component of magnetic leakage field has maximum value and that the normal component of magnetic leakage field changes polarity and acquires zero value at the stress concentration zone will take place
鐵磁性工件在受到應力作用時，在應力集中處會有漏磁場的切向分量出現最大值、同時法向分量改變符號且過零值點的現象。 -
Design the configuration parameter of the electromagnets using magnetic circuit theory, and check the temperature increase of the electromagnet. and design a power device using igbt with electric and electron theory. it can supply the electromagnets excitation current which changes regularly on a given rule
對于彎扭矩檢測系統，運用應變儀的原理，在試件上的合適位置加貼應變片並組成惠斯登全橋差動電路，檢測出實際加載在試件上的彎矩和扭矩的大小。 -
This is where a magnetic field changes shape and bumps into itself
這就是磁星的磁場改變了形狀然後向本身內部撞擊。 -
Functional magnetic resonance imaging scans are allowing researchers to measure minute changes in brain activity
功能性核磁共振檢查是研究者能夠觀察大腦在活動時的細微變化。 -
Key words : chronic nonspecific low back pain, magnetic resonance imaging, disc degeneration, high intensity zone, endplate changes, bulging disc, exercise therapy, outcome
關鍵詞：慢性非特異性下腰痛；磁共振成像；椎間盤退變；高信號帶；終板改變；椎間盤膨出；運動療法；療效。 -
A phenomenon called self - induction is at work here : as the current oscillates, the magnetic field around the wire changes, too, inducing voltages that slow the oscillation
這里運用了一種自感現象：當電流振?時，金屬線周圍的磁場也會改變，產生使振?減慢的電壓。 -
Such variations are found that due to applied magnetic field from the substrate. the aspect and brightness of the glow and the self - bias voltage for the target changes significantly
實驗中觀察到，在外加磁場的作用下，等離子體放電的輝光的明亮程度及外貌和靶面自偏壓發生了明顯變化。 -
The controllers have considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, frictional coefficient, the thrust fluctuations aroused by the varieties of the magnetic density distributions and the time harmonic. the h state feedback controller restrains disturbances and uncertainties to keep the robust and stable performance. the ip controller, which has the ability of rapid response, is applied to satisfy the rapid performance
在分析雙環控制問題時，針對直線永磁同步電動機，仔細考慮了能使伺服系統性能變壞的各種細微因素，如：永磁同步直線電機動子質量變化、摩擦系數變化等造成的模型參數不確定性，電機運行期間存在磁密分佈變化、時間諧波等產生的推力擾動等，採用了ip速度控制器和h _狀態反饋控制器相結合構成直線伺服的內環控制器，並輔助設計了外環的pi位置控制器。 -
It is found from the experiment that under the conditions of peak magnetic field of 0. 57t, beam pulse fwhm ( full width of half maximum ) of 44ns, a microwave radiation pulse with fwhm 25ns and whole width of 35ns is produced, when the intensity of the guiding magnetic field rises, the peak microwave power changes little but the width of the pulse reduces. the a - k gap also has obvious influence on the microwave radiation, the stable and higher microwave output is obtained under suitable gap
實驗中還發現，在峰值磁場0 . 57t和束流半高寬44ns情況下，得到了25ns半高寬和35ns底寬的微波脈沖信號，隨著導引磁場增加，微波信號幅值基本不變，但國防科學技術大學研究生院學位論文是微波脈沖寬度會逐步減少;實驗中還發現磁場線圈位置有一定的軸向調節范圍，說明在磁場軸向分佈的一定變化范圍內，器件都可以正常工作，這對以後的永磁場系統導引的微波實驗有利。 -
And we test how the laser ' s intensity changes with time through six kinds of cofe2o4 ionic magnetic fluid when laser has the same direction as the magnetic field ( be perpendicular to the magnetic fluid film )
用相消法設計了測試磁光效應一一透射光強的裝置，測試了光線與外磁場方向一致（都垂直於磁性液體薄膜）的情況下，透過六種cofe 。 0 。 -
Then introduce berry ' s work of finding phase factors including quantum phase factors accompanying adiabatic changes, on the base of this, discuss berry phase factors of spinl / 2 particle in rotating magnetic field
本文接著介紹了berry1984年發現幾何相因子的工作，內容包括從量子絕熱定理推導berry幾何相因子。在此基礎上，把旋轉磁場中自旋1 2系統作為研究對象，對其幾何相位的變化特點進行了討論。 -
The lagging of an effect behind its cause, as when the change in magnetism of a body lags behind changes in the magnetic field
滯后現象一個結果在原因之後拖沓，比如一個物體的磁化變化要比一個磁場變化慢
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