預磁化 的英文怎麼說

中文拼音 [yùcíhuà]
預磁化 英文
premagnetization
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  1. It can pre - treat water, there is filter net which has been magnetized in water entrance ( patent no. : 20042000913030 ), it can purify water by absorbing indissoluble and scrap iron in water

    對入水進行預處理，在入水口處安裝磁化過濾網（專利號： 2004200913030 ）將水中不溶物及鐵沫吸出凈化了水質。
  2. On the base of the analysis on the advanced technology of hard ferrite in foreign country, the main procedures of preparing hard ferrite pre - sintering material are determined as follows : first, the ferrite oxides coming from the main cold rolling line and strontium carbonate are conveyed to storage tank by gas power and weighed automatically according to the demands of constituent composition. and then they are mixed and grinded by using method of wet treatment. finally the mixtures is transported to the devices of storage by transporting pump

    在分析國外先進的永磁鐵氧體生產工藝的基礎上，確定了生產高檔永磁鐵氧體預燒料的主要過程：首先，利用攀鋼冷軋鐵紅為主要原料，將氧化鐵紅及碳酸鍶採用氣力輸送至貯料料倉，經自動稱量裝置，按工藝配方稱量後分別由氧化鐵紅及碳酸鍶發送罐氣力輸送進入預混攪拌筒加水攪拌，然後再送入混磨機濕法混磨；最後，混合物經輸送泵輸送至料漿存儲裝置，經定量進料泵定量輸送至回轉窯進行濕法預燒，預燒料經緩冷至室溫后，再球磨。
  3. Abstract : based on 1 200000 aeromagnetic survey data performed in 1998, and referred to materials of geolo - gic and geochemical prospecting of the working area, this paper discusses the relationship between the characte - ristics of magnetic field, magmatic rocks, fault structure and the distribution of mineral resources, and investigates the geologic metallogenic environments, and sets up the prospecting criteria for hydrothermal and volcanic - sedimentary copper, lead, zinc, gold, iron, manganese deposits, then makes the prognosis of the prospecting potential of the working area

    文摘:本文以1998年1 20萬航空磁測資料為基礎，參考地質和化探資料，對工作區磁場特徵、巖漿巖、斷裂構造與礦產分佈的關系進行探討，研究地質成礦環境，建立尋找熱液型和火山-沉積型的銅、鉛、鋅、金、鐵、錳礦找礦標志，對本區找礦遠景進行了預測。
  4. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  5. Prediction study of caving space in block caving mining method by magnetic strength change measured in field

    利用磁鐵礦磁場變化預測崩落空間的現場研究
  6. In the end, the thesis supplies the parameter of magnetic & susceptibility anomaly forecasting oil and gas reservoir and pointed out the association with the parameter and the compartmentalized oil & gas perspective region may improve the precision rate greatly in magnetic exploration searching oil and gas reservoir directly

    油井資料驗證了磁性資料探測油氣藏結論，驗證結果表明了資料的有效性和劃分的合理性。由此，本文給出了磁異常? ?磁化率異常聯合預測油氣藏量化因子，指出此因子配合油氣遠景區圖示可以大大提高磁性指標直接探測油氣藏的準確率。
  7. The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics

    採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。
  8. Based on netomac, a software package for power system simulation, the model and algorithm of pre - dispatch schedule in generation markets, excitation system parameter setting, and power system small signal stability anaylsis are studied in this thesis. the main work is as follows : a model of pre - dispatch schedule is proposed, whose target is to minimize the market purchasing price ( mpp ) in the whole pre - dispatch period. then according to the characteristics of pre - dispatch schedule, the model of pre - dispatch schedule is simplified to minimize the mpp in each pre - dispatch time, and a three - step algorithm of pre - dispatch schedule is designed : dealing with the optimal problem in the whole period of pre - dispatch with static planning method, solving the problem of combination of machines with pr1 method, resolving problem of optimal power flow ( opf ) with modified powell method

    本文基於netomac模擬軟體，以發電市場預調度計劃模型及演算法、勵磁系統參數整定和電力系統小擾動穩定性分析為研究內容，主要做了以下工作：建立了以整個預調度計劃周期內的市場購電價格最小為目標的發電市場預調度計劃模型，並根據預調度計劃問題狀態數多、變量多、混合整數、非解析的特點，將預調度計劃模型的目標函數簡化為各時段的市場清算電價最小，設計了三段式預調度演算法：用靜態規劃法求解整個預調度計劃周期內的優化問題；用優先級法求解機組組合問題；用改進的powell法求解最優潮流問題。
  9. Abstract : applied the principle of electromagnetic interference prediction, interference multi - predictions are made to solve the frequency spectrum administration in accordance with collective using radio sets in integrated communication command system. this paper obtains the frequency interval between radio sets making sure the electromagnetic compatibility

    文摘:應用電磁干擾預測的原理，針對一體化通信指揮系統中，多部電臺集中使用所帶來的頻率管理問題，進行了干擾多級預測，得出了保證電磁兼容性系統各電臺之間應滿足的頻率間隔，提出了通信網中通信頻率方案。
  10. Many data such as m / g, em and seismic have been arranged, processed and interpreted in shengli oilfield, in which, the interpreted data ( 2 - d ) are 64 lines with 1800km. the techniques such as integration of process and interpretation, joint interpretation of m / g, em and seismic, variable velocity mapping, pressure prediction, constraint inversion without well and special process have been applied. the comprehensive researches on geology and physical exploration have been carried out in the whole block

    該區油氣勘探始於50年代，勝利油田在該區塊先後部署、處理、解釋了重、磁、電、震等多種資料，其中解釋地震資料（ 2d ） 64條、 1800多公里，才用了處理解釋一體化、重、磁、電、震聯合解釋、變速成圖、壓力預測、無井約束反演、特殊處理等技術，對整個探區進行了地質、物探等綜合研究，發現兩個有利構造帶，落實了13個圈閉構造，提交了兩口探井井位。
  11. Permanent magnet synchronous machine ( pmsm ) has been paid more attention in the past two decades by researcher in the motor and control system fields because of its excellent performance for example small cubage, great power density and good efficiency we can foresee the further development about pmsm and its control system with the reduce of the permanent magnet material ' s price and producing the rotor progress in the power electronics apparatus and high - speed processor and control theories.

    經過努力，其本體設計和控制方式在近二十年內得到了長足的發展，商用化的產品也已經進入到工業生產應用等各個領域。可以預見，隨著永磁材料價格和電動機製造價格的降低，電力電子器件及高速微處理器的進去，驅動系統理論研究和實踐應用的不斷完善和提高，永磁同步及其驅動系統將會得到進一步的發展和應用，在某些場合將逐漸取代現有的普通電勵磁電機及其驅動系統。
  12. Then construct relation between crystal structure, interface structure and mechanical, magnetic properties of composites and predict and control the properties of material from the interface structure varying, on the basis of that developing the principle of design of interface structure

    從界面結構變化的角度來預測和控制材料的性能，在此基礎上發展陶瓷材料的界面結構設計理論，並為最終研製出高性能的結構陶瓷-硬磁鐵氧體結構-功能一體化復合材料打下基礎。
  13. The main contributions of the dissertation are as follows : on the basis of experimental results, the operational effects, such as the magnitude of magnetic field, the temperature and the rate of shear strain, on the shear stress of the mr fluid are shown and models of the quasi - bingham model and a nonlinear model for the shear stress of the mr fluid also are developed, in which the characteristic of " shear - thin " of the mr fluid is described

    論文的主要貢獻如下：通過測試磁流變液剪切應力與磁感強度、剪切應變速率、溫度的變化規律，建立了能反映磁流變液剪切變稀現象的剪切應力與剪切應變速率的磁流變液模型。根據磁流變液模型，從理論上建立了能在較寬的電壓內范圍比較準確地預報磁流變阻尼器輸出力的近似公式。
  14. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  15. Abstract : the separation of magnetic materials from converter vanadium - bearing slag in the process of pretreatment of it for hydrometallurgical vanadium recovery has been researched and moreover, the feasibility and optimization of magnetic separation and screen separation are discussed as well

    文摘:對攀鋼轉爐釩渣水法提釩預處理工藝中磁性物的去除進行了研究，並對磁選及篩選的原理、可行性、優化方案等進行了探索。
  16. The predication technical methods consist of experience - analogy, geochemical techniques ( e. g. geo - gas method and partial extraction of mobile forms ), geophysical techniques ( e. g. radioactivity survey, ground electromagnetism, earthquake technique, hole geophysical survey ), remote sensing, gis, and comprehensive information prognosis methods

    預測技術方法有經驗類比法，地球化學方法（如地氣法、活動態偏提取技術） ，地球物理方法（如放射性測量、地面電磁法、地震法和井中物探） ，以及遙感技術、 gis技術和綜合信息礦產預測方法等。
  17. The algorithm of sequencable mark and description of the object for crack automatic identification is presented by means of pre - image process. on basis of visual c + + 6. 0 developing environment, the software function of controlling of magnetic partical testing engine and the stepping - motor is realized in c + + and mfc with objected programming method. the automatic system of the camshaft of small diesel engines automatic magnetic partical testing is realized, which is the predicted goal that we would achieve

    用計算機控制磁粉探傷機和步進電機的工作；解決了jpeg圖象格式在windows系統中visualc + +編程環境下的壓縮轉換、顯示和處理的問題；結合數字圖象的預處理，提出了通過圖象分析自動識別裂紋的順序目標標記與描述演算法；基於visualc + + 6 . 0開發環境，用c + +語言和mfc類庫，採用面向對象的程序設計方法，用軟體實現了對磁粉探傷機和步進電機等硬體系統的自動控制功能；實現了柴油機凸輪軸熒光磁粉探傷系統的自動化，達到了預期的目標。
  18. The principles of differential scanning calorimetry, electron microscope, nuclear magnetic resonance and x - ray were introduced in this paper together with their applications in oil quality control, development direction of investigation on oil quality control was also forecasted here

    摘要介紹了現代物理化學方法（差示掃描量熱法、電子顯微鏡、核磁共振法、 x -射線衍射法）的原理及其在油脂質量控制中的應用，並預側了油脂質量控制研究的發展方向。
  19. Nuclear magnetic resonance ( nmr ) data are used to study back - exchange at specific sites in typical solvents used for separation and analysis, and the derived rates are found to be predictable using methods established for aqueous solvents

    根據核磁共振（ nmr ）數據研究了在分離和分析所用典型溶液的特定位置上的返交換效應，並發現可以使用為水相溶劑建立的方法對衍生化率進行預測。
  20. 1. nizn ferrite was developed for using in mini high frequency dc - dc converters and inductors. we measured and analysed the parameters of the nizn ferrite, which we concern about when designing the dc - dc converter. 2. the low loss sample of nizn ferrite were chosen for design - optimization of the high frequency transformer. based on the relevant theoretical researches, the loss properties of the magnetic core material and winding were analyzed in this thesis

    因此，以nizn功率鐵氧體材料為開關電源芯材為基礎，並優化各種開關電源的設計已成為國際上的熱點和技術瓶頸，本論文正是以上述背景為研究目標而開展工作的，主要進行的工作和創新有: 1 .對研製的新型高頻低功耗的功率nizn材料進行參數的測試，並針對dc - dc變換器設計關心的參數對芯材特性進行了分析，選擇在特定頻率下，功耗較小的nizn材料磁芯樣品作為變壓器優化設計的預備磁芯。
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