脈動磁化 的英文怎麼說
中文拼音 [màidòngcíhuà]
脈動磁化
英文
surge magnetization-
9. what effect does the magnetic therapy have on arteriosclerosis
10磁療對動脈硬化有什麼作用？Advances of mr imaging in coronary atherosclerosis plaque
冠狀動脈粥樣硬化斑塊磁共振成像研究進展Arteriosclerosis is caused by the sediment formed by lipoid such as cholesterin on the inner side of blood vessels. the magnetic field can speed up the hydrolysis of cholesterin in a purpose to reduce the concentration in the blood
動脈硬化是由於脂類物質特別是膽固醇在血管內壁上沉積對內膜造成損害，而誘發血管硬化，磁場能加速膽固醇水解作用。Water feeding framework takes electromagnetism water valve as administration component and is added relief valve for stabilizing hydraulic pressure ; the system has large, middle and small water valve that changes unlock combination of electromagnetically operated valve, which can get seven different water flux ; if it is necessary, it should adopt microseism water feeding that can make water feeding get stepless timing
3加水機構加水機構採用電磁水閥作為執行元件，加入調壓閥穩定水壓，系統共設大中小三路加水閥，變化電磁閥的開啟組合，可以得出7種不同的加水流量，必要時採用脈動加水法，可使加水達到無級調速。After controlling for age and gender, the team found associations between a smaller ratio of retinal arterioles and venules with mri findings, including prevalent infarcts, worsening white matter grade, and incident infarct
在對年齡和性別進行控制后，研究小組在磁共振結果中發現較小比率視網膜小動脈和小靜脈之間的聯系，包括普遍的梗塞，惡化的白質程度，以及偶發的梗塞。Abstract : based on the ahievement of epitaxial growth in several perovskite oxide films, we discuss the importance of substrate temperature ( ts ) and substrate material in the epitaxial growth of perovskite oxide thin films. influences of ts on growth orientation and epitaxial threshold temperature were observed. the results indicate that during the growth of the oxide films the phase formation and growth dynamics should be taken into consideration. the threshold temperature for epitaxial growth depends on the substrate materials. this demonstrates the influence of substrate material on the initial nucleation and epitaxial growth
文摘:在成功地外延生長超導、鐵電、鐵磁等多種性質的鈣鈦礦結構氧化物薄膜的基礎上，討論影響氧化物薄膜外延生長的一些因素.考慮到相形成和薄膜生長動力學，在利用脈沖激光淀積法外延生長氧化物薄膜中襯底溫度是十分重要的工藝參數.襯底溫度對成相和生長薄膜的取向都有影響.考慮到薄膜是首先在襯底表面成核、成相併生長.因此襯底材料晶格的影響是不容忽視的.觀察到襯底材料對薄膜外延生長溫度的影響.在適當的工藝條件下，利用低溫三步法工藝制備得到有很強織構的外延薄膜.這突出表明界面層的相互作用對鈣鈦礦結構薄膜的取向有著相當大的影響In order to decrease the cost, simplify the structure of the pmsm servo system and at the same has no effect on the system performance, this paper uses hall element as the position sensor, which has very low solution but very low cost, and in order to realize sinusoidal current drive of pmsm, this paper presents a new rotor position estimator based on flux estimation
為了降低成本，簡化系統，本文採用低解析度的霍爾元件作為pmsm伺服系統的位置傳感器，採用基於磁鏈觀測法的低解析度位置傳感器控制技術，來估計電機轉子的實時位置和轉速，實現電流的正弦換向，減小轉矩脈動。In order to minimize the torque ripple of srd, the dissertation further design the intelligent torque control system, introduce the instantaneous torque control strategy based on torque distribute function, which is implemented by the flux linkage controller of srm. furthermore, considering the multi control parameter, the article also found the rotor position angle controller based fuzzy logic so as to optimize the whole control system and effectively reduce the torque ripple
為了降低srd系統的轉矩脈動，本文在所建模型的基礎上，設計出智能化轉矩控制系統，利用轉矩分配函數，提出瞬時轉矩控制策略，同時採用磁鏈控制器來實現；考慮到srd具有可控參數多的特點，本文同時建立了優化轉子位置角的模糊控制器來達到智能化轉矩控制的目的，從而有效抑制sr電機的轉矩脈動。This paper is to study the object of mn - zn ferrite powder, which is an important non - metallic magnetic materials, because of their narrow hysteresis loop, high magnetic permeability and high resistivity, high curie temperature and the low loss characteristics are widely used in many electronic industrial fields
這種磁性微粒經局部注射或經動脈導管注入瘤體后，在交變磁場作用下吸收電磁波轉化為熱能使腫瘤區升溫達所需的治療溫度（ 41 46 ） ，以殺死腫瘤細胞，而不含磁微粒的正常組織不受損，正逐漸成為醫學上腫瘤熱療技術的研究對象。Magnetic sensors are an important branch that can be used to detect the non - electronically characteristics through the magnetic field. the insb intellectualized magnetic coder sensor in this paper is designed for the measurement of the position of object and the angular velocity of object. through the sensor, the information of the position and the angular velocity are changed to electric pulse which can provides to other second instruments
通過磁場的無接觸特性，對非電量的測量是磁傳感器應用的一個重要方面，本文所研究的智能化磁編碼器是對于轉動物體的位置、角速度進行高精度測量的一類傳感器，它可以把轉動物體的位置和角速度信息轉換成電脈沖信號，供二次儀表使用。Thanks to the support of the national natural science foundation of china under grand no. 50277036 for " the pulse electromagnetic fields and system - level em radiation of electric vehicles ", this thesis concentrated on the design of the variable voltage and variable frequency ( vvvf ) system and the development of a genetic algorithm for vector optimal design problems. the work includes mainly four parts : a brief introduction of the frequency - converter, the emc design of the vvvf system and the national standard of the electromagnetic interference of the vvvf system, the study of global search optimization algorithms, and an improved genetic algorithm called emigration genetic algorithm for multi - objective optimal problems
在國家自然科學基金資助項目《電動汽車脈沖電磁場與系統級輻射的研究》的工作基礎上，本文對電動車電磁輻射關鍵部分? ?變頻調速系統的電磁兼容性設計以及在電磁兼容性設計中涉及到的電磁系統的多目標優化方法進行了系統的分析和研究，其核心內容包括：變頻器工作原理；變頻調速系統電磁兼容性設計及變頻調速系統電磁兼容標準；隨機類全局優化演算法研究；提出了一種改進的遺傳演算法命名為遷徙遺傳演算法。Constant stator magnetic linkage control frequency converter includes power devices utilizing igbt, drive circuit using three - phase drive ic with multiple protection functions. pwm signal formation circuit in the way of voltage space vector control and realized with pld ( programmable logic device ) devices and compensation for the influence of supply voltage variation and stator resistance voltage drop
其中，恆定子磁鏈控制變頻器的設計中主電路採用功率器件igbt ；驅動電路採用三相多功能集成驅動晶元； pwm脈寬調制信號產生電路採用電壓空間矢量控制方式，由pld器件實現；對電源電壓變化及電阻壓降造成的影響進行了補償。Finally, to meet the fact, the paper also analyses a new drive scheme theoretically, in which the switched reluctance motor with y winding connection is excited by three wires. this paper woks over the calculation of switched reluctance motor magnetization curve and its analysis of static performance. the torque ripple reduction is the emphases
本文對開關磁阻電機磁化曲線的計算、穩態性能分析、轉矩脈動的減小，提出了相應的解決方法，對于開關磁阻電機的性能分析、實時控制、新型驅動和開發研製都有一定的理論和應用價值。Due to its special frame structure, bus access method and error - tolerance technology, can enjoys good reliability, flexibility and response time. can, gsm - sms ( short message service ) technology are used in amr ( automatic - meter - reading ) system, thanks to the opto - isolation circuit and software filtering algorithm, the amr system can be free of the serious disturbance in power station, which has won user ' s satisfaction
本課題「變電站自動化抄表系統」中，由於採用了抗干擾性好的can現場總線技術及現代移動通訊技術，並對脈沖信號採用光電隔離和信號整形技術，並採用獨特的軟體濾波手段，克服了變電站嚴重的電磁干擾對通訊和數據採集系統的影響，取得了令人滿意的效果。Computer tomographic scan and magnetic resonance imaging showed a mass lesion in the left basal ganglion region
因無法以核磁共振掃瞄及腦部血管攝影檢查排除為動靜脈畸形瘤，於是開刀取樣化驗。Mathematical model and parameter optimization of solenoid - controlled jerk - pump fuel injection systems
電磁閥溢流控制式脈動噴油系統的數理模型與參數優化分享友人