旋磁學 的英文怎麼說
中文拼音 [xuáncíxué]
旋磁學
英文
gyromagnetics-
Chemical analysis methods for products and semifinished products made of gyromagnetic ferrite materials
旋磁鐵氧體材料成品半成品化學分析方法Next, in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors, the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field. oh the basis of the mathmatic model, the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential, magnetic field intensity, magnetic induction, the shape of the magnetic scarlar potential level surface, the distribution of the magnetic circuit, the magnetic induction the self - inductance and the mutual inductance of the coils
其次,為全面了解這種新型電磁電機的電磁特性和動力特性,本文從電機磁場的基本方程及其邊界條件出發,應用無旋磁場的標量磁位概念,建立了端面搖擺式電磁微電機內部磁場的數學模型,並以此為基礎,詳細分析了電機氣隙磁場的各方面性質,對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分佈、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached
本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析,推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。At the same time, on the basis of above results, the stability problem of the polarization of particle self - spin is discussed in irregular magnetic field of accelerator. the discovery that the low degree polarization system is very sensitive to the irregular magnetic field while the high degree polarization system is very stable is found. the irregular fluctuation of the vertical ponderance is complementary to that of the horizontal ponderance due to the self - spin conservation
同時,在此基礎上,利用su ( 2 )代數動力學方程研究了加速器中帶自旋離子的極化對磁場的含時無規擾動的穩定性問題,發現:低度極化的系統對磁場無規擾動十分敏感,而高度極化的系統對磁場無規擾動十分穩定;自旋守恆導致自旋的縱向分量的無規漲落和橫向分量的無規漲落存在著互補性。Analysis software. the analysis show : the gyroscope effect to the flywheel rotor ' s and the shaft ' s vibration character under high rotate speed should be considered. at this time, the system ' s normal frequency is the function of rotate speed ; the amplitude passing through the resonance field can be lowered obviously by improving the effective damping of the electro - magnetic bearing
建立了高速旋轉狀態下,採用磁軸承作支撐的飛輪轉子和轉軸的動力學模型,給出了有限元法在此問題中的具體應用,並利用i - deas有限元分析軟體具體分析了飛輪系統的共振頻率、系統振型,以及對偏心激勵的響應,分析表明:對于高速旋轉的飛輪轉子和轉軸,應考慮陀螺效應對其動力學特性的影響,此時系統的固有頻率是轉速的函數;通過提高磁軸承的等效阻尼可顯著降低系統通過共振區域時的振幅。Design and synthesis of high spin ground state molecules is an important content in the research of molecular magnetism
多核配合物高自旋基態分子的設計和合成是分子磁學的一項重要研究內容。The magnetic properties of mixed ising spin system in the different transvres fields
不同子格隨機橫場作用下混合伊辛自旋系統的磁學性質Sichuan gamma knife center is a jointly established high - tech no - ravage medical center by sichuan luzhou mediccal college affiliated 363 hospital with shenzhen aohua medical devices development co, ltd. the center is equipped with the most advanced french - made our - rgs gamma knife, vectra nuclear magnetic resonance imaging device made by ge and other matching or accessorial facilities
四川伽瑪刀中心是由四川瀘州醫學院附屬363醫院與深圳傲華醫療設備發展有限公司共同合作組建的高科技無創傷醫療中心。中心配有最先進的法國生產的our rgs旋轉式伽瑪刀一臺美國ge公司生產的vectra磁共振成像設備一臺,經及相應的配套輔助設備。This thesis reports an analytic study on the giant - magnetoresistance of multi - layer sandwich structure and spin - valve structure by using green function quantum statistics approach and nonlinear kubo formula that was derived by sub - dynamics theory
本論文報導使用量子統計格林函數方法以及由子動力學理論推出的非線性響應理論對多層膜三明治結構和自旋閥結構的巨磁電阻效應的解析研究。In this papef, the torpedo ' s counterrotating propulsion dc motors ( including series excitation motor and permanent magnetic excitation motor ) are the core to stlldy ; combining the characteristics of battery shiffing electrical equipment and counterrotating propellers, the mathematic models of the torpedo ' s electrical counterrotating propulsion system ( including the mathematic models of the propulsion motors and the zn / ago battery and the shifting electrical equipment and counterrotating propellers ) are established
本論文以雙轉魚雷直流推進電機(包括直流串勵電動機和永磁他勵電動機)為研究重點,結合鋅銀電池組、變速電器、對轉螺旋槳的特性,建立魚雷電動力推進系統的數學模型(包括推進電機、鋅銀電池、變速電器和對轉螺旋槳等的數學模型) 。This paper studies the angular sensing properties of a typical spin - valve gmr chip with the help of some basic theories in magnetic electronics and experiment
本文結合磁電子學的基本理論和實驗研究了一種自旋閥gmr晶元的角度傳感特性。Magneto - electronics lies in the area of current scientific interest in condensed matter physics and material sciences, due to abundant physical conceptions and applied potentials. it is a base of magnetic devices with high density and sensitivity. recently, non - volatile magnetic computer memory ( mram ) is expected to have a large economic impact, and has been significantly focused on its experimenatal research
目前,非揮發性磁存儲記憶器件?磁存儲器magneticrandomaccessmemory ( mram )的研究和開發已成為自旋電子學研究的主要應用目標;而在室溫和低磁場下,具有足夠大的磁電阻( mr )效應成為實現mram器件應用的前提。In their quest to build a computer that would take advantage of the weirdness of quantum mechanics, physicists are pursuing a number of disparate technologies, including superconducting devices, photon - based systems, quantum dots, spintronics and nuclear magnetic resonance of molecules
物理學家想盡各種辦法,希望能利用量子力學的奇異特性來建造出量子電腦,其中包括超導裝置、光子系統、量子點、自旋電子學,以及分子的核磁共振。Taking core loss into account has important effect to improve the torque performance of the motors " field oriented control. in this paper, the transient mathematical model of the asynchronous motor with core loss is setup. the method is proposed that minimizes the loss in a variable speed and torque at the synchronous rotating coordinate
在對損耗分析的基礎上,建立了考慮鐵損時異步電機的動態數學模型,推導出在同步旋轉坐標系下變速、變轉矩時使電機功率損耗最小的方法,並且結合矢量變換提出了基於快速轉子磁場定向的矢量控制。In accordance with physical engineering and theory of life science, this machine has ten main functions which are spiral massage, healthy scanning cleaning blood resell, physiological balance, giving a new lease of functions on life, beauty and physiotherapy, sports with fresh air, electric qigong, super sense and keeping in good health, and magnetic curative effect
根據人體工程學原理及生命科學理論而精心研發的氣血循環機,具有螺旋按摩健康掃描清潔血管生理平衡性能再造美容理療有氣運動電子氣功超覺養生磁療效應等十大功能。A transient mathematical model of the asynchronous motor is built taking core loss into account to improve the torque performance. a method is proposed to minimize the total loss according to the relation between the efficiency and the rotor flux. a dtc system using this method appear high efficiency in matlab - simulation
本文通過對電機損耗的分析,建立了考慮鐵損時異步電機的數學模型,推導出電機的損耗和轉子磁鏈的關系,通過坐標旋轉變換,得出損耗最小時的直接轉矩控制的定子磁鏈參考值。Using direct current generator principle, set up electromagnetic limit speed auto - rotate nozzle stable state operate circuit, mechanics, energy equation
應用直流發電機原理,建立電磁限速的自旋轉噴頭穩態運行時的電路、力學、能量方程。So the research on these new materials is becoming more and more important. we collected and analyzed the overseas and domestic sufficient date for the optical characteristics of magneto - optic crystal. then we bring forward a research topic in varying magnetic field on some crystals optical characteristics such as the angle of rotation, the depolarization ratio and so on
本文在對國內外有關磁光晶體光學特性研究狀況進行調研之後,從外界磁場對晶體光學特性的影響這一角度出發,在大范圍可調諧磁場下,對幾種不同的磁光晶體的光學特性,諸如faraday旋轉角、退偏度等進行了測定。The gas sources that we used are trimethylgallium ( tmg ) and 99. 9999 % purity nitrogen, which were fed into reaction chamber and resonance cavity respectively. the highly dense ecr plasma up to 1011cm - 3 was created in the resonance cavity and introduced to the next reaction chamber by the force of divergent magnetic field. consequently, gan thin film was grew on the substrate sapphire ( 0001 ) placed in the downstream
實驗採用有機金屬三甲基鎵氣源( tmg )和99 . 9999純度的氮氣,在ecr - pecvd150裝置共振腔內電子迴旋共振吸收微波能量產生的高密度ecr等離子體在磁場梯度和等離子體密度梯度的作用下向下級反應室擴散,在放置於下游區樣品臺上的- al _ 2o _ 3襯底表面附近發生物理化學反應沉積成gan薄膜。Thus , for instance , it may come as a shock to mathematicians to learn that the schrodinger equation for the hydrogen atom is not a literally correct description of this atom , but only an approximation to a somewhat more correct equation taking account of spin , magnetic dipole , and relativistic effects ; and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field - theoretical equations
因此,舉例來說,對數學家而言,了解到下述情形可能會令其驚愕不已,即薛定諤( schrodinger )的氫原子方程式並非是對該原子作出的一種絕然正確的描述,而僅僅是個近似值,趨近於一個在某種程度上更為正確的將自旋、磁性偶極子、以及相對論效應考慮在內的方程式;而這個得以糾正的方程式就其本身而言也只是一個不完美的近似值,趨近於無窮無盡的一整套量子場論方程式。分享友人