inversion system 中文意思是什麼
inversion system
解釋
倒象系-
Inversion changes the "handedness" of a coordinate system.
反演會使坐標系的「左右手性質」發生變化 -
To deal with the difference on operating system level, this paper designs a thread - level algorithm based upon priority inheritance protocol to prevent priority inversion. a dynamic priority mapping and scheduling algorithm to achieve strict order is also presented. through analysis of multi - threaded execution order under fixed priority scheduling model, a multithreaded programming model with totally predicable execution order is proposed
針對各種操作系統的差異，本文提出了基於優先級繼承協議的線程級防優先級翻轉演算法，提出了能夠嚴格保序的動態優先級映射方法及相關的調度演算法，通過研究固定優先級調度下的多線程執行順序問題，本文還提出了一種執行順序可預測的多線程程序設計模式。 -
In this paper, taking the measured error sound velocity profile as the initial guess value, the sound beam travel times and beam angle recorded by the multi - beam system and the generalized linear inversion method are used to get a sound velocity profile close to the actual sound velocity profile, and the inversed sound velocity profiles have contributed to the reduction of sound velocity profile error
摘要以測得的誤差聲速剖面作為初始猜測值，利用多波束記錄到的波束傳播時間和波束角等信息，通過廣義線性反演得到一個與實際聲速剖面比較接近的聲速剖面，這有助於減少聲速剖面的誤差。 -
Guided by the theory of sequence stratigraphy and petroleum system using cores, lithologic log or well - logging, biostratigraphic and seismic data, adopting seismic inversion constrained to well data, digital analysis technology, basin modeling, test method and so on, and adopting an integrated study technology, aiming at lower exploration in chagan depression, this work put forward a new research thoughtfulness, technic flow and method system that is an integrated study by " looked upon sequence stratigraphy as a base, looked upon petroleum system as a integer, combing with each other closely " and tie in qualitative analysis and quantitative analysis and applied synthetically new theory, new technology and new method
以層序地層理論和含油氣系統思想為指導，利用巖心、鉆/測井、古生物以及地震資料，採用井約束下的地震資料反演技術、計算機技術、盆地模擬技術和各種分析實驗手段等綜合分析方法，針對查干凹陷勘探程度低的特點，提出了斷陷盆地「以層序地層分析為基礎、含油氣系統為整體（系統）和二者緊密結合」以及定性與定量相結合，綜合應用新理論、新技術和新方法的研究思路、技術路線和方法體系。 -
Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa
本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；第四，深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法，並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進，而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能，還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究，所得的結論可供在實現橢圓曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線標量乘法的快速演算法，同時改進了固定基點梳形法，提高了整個系統的速度，並在實驗的基礎上分析研究了流行演算法的優劣；第六，實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫，在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh ， eces ， ecdsa等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。 -
As we know, the ill - conditioning problem is present in data processing of geodesy networks adjustment, gps ( global positioning system ) fast orientation, geodesy inversion and distortional inspecting networks. moreover, its damage is serious
病態性在常規大地測量網平差、 gps快速定位、大地測量反演以及變形監測網的數據處理中是大量存在的，其危害性十分嚴重。 -
Generally, the ill - conditioning problem not only exists in global positioning system ( gps ) data processing, surveying adjustment, observation deformation analysis and geodesy inversion, etc, but also its ill effects are very serious
在gps數據處理、工程式控制制網平差、形變觀測分析、大地測量反演等測量數據處理領域，系統的病態性問題是常見的，並且病態性的危害作用非常嚴重。 -
Second, through employing the 3 - d finite element model and the dual objective function inversion method developed in this paper, and taking the measured fundamental frequency of system and the structure response to a harmonic excitation at the top of structure in field as the reversion objectives, the linear material parameter inversion is performed in ansys by using ansys parameter design language ( apdl )
第二，採用三維實體有限元模型和本文提出的雙目標函數反演方法，把現場測試得到的系統基頻和頂部激振下實測的結構動力響應作為反演目標，利用ansys參數設計語言（ apdl ） ，在ansys軟體中實現了系統材料線性參數的反演。 -
In view of the limitation of the traditional inversion theory and method of the gravity and magnetic field, professional an yulin, etc, worked in china university of geoscience, has come into being the theory system of the all - direction imagery for local gravity and magnetic sources after having researched a few years. the theory system broke through the thinking method of traditional theory system, researched all - direction imagery of the 2d local gravity and magnetic sources by means of complex function theory and researched all - direction imagery of the 3d local gravity and magnetic sources by means of spherical harmonic analysis theory, developed greatly the interpretation theory on the gravity and magnetic field
該理論體系突破了傳統的重、磁場解釋理論體系的思維方式，採用復變函數理論研究二維局部重磁場源全方位成像，採用球諧分析理論研究三維局部重磁場源全方位成像，大大發展了重磁學科解釋理論，可以在起伏地形、有背景疊加和高頻干擾等復雜條件下，直接反演加疊代修改，求解分佈在有限范圍內的二維和三維重磁場源異常場的多種反演問題。 -
The generator is verified to be of well performances by experiment. the third part concerns the control system of pm generator in vehicle application by commutating and inversion. considering the development of future power supply of auto electric system and the economizing on energy, the multi - voltage power supply system for future autos power supply system is introduced, and the design is given in detail
最後，結合現代電力電子技術，利用整流橋、逆變器、 mosfet等元器件設計並實現了車用永磁發電機恆壓輸出控制；從未來汽車電氣系統的發展方向和高效節能方面考慮，提出未來汽車的多電壓供電系統的典型配電模型，並對該模型進行具體設計，實現多電壓供電的功能，並給出了控制線路中各主要部分的波形。 -
In section one, we analyze the mechanism of lwi gain, and study the effects of the rabi frequency q of the driving field, the injection rates ratio rb / r ~, the exit rate r0, the decay rates ~ and rab between atomic levels, as well as 3 incoherent pump rate r on the gain without inversion, dispersion and population difference of the system. in section two, we discuss the effects of the detuning of the driving field and the probe field on the gain
在第一節中分析了無粒子數反轉激光增益產生的機制、研究了驅動場的rabi頻率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能級間的自發衰減速率r _ （ c - b ） 、 r _ （ a - b ）和非相干泵浦速率r對增益、色散和粒子數差的影響；第二節討論了驅動場和探測場的失諧對無粒子數反轉激光增益的影響。 -
The flight control system of attack helicopter and the influence of disturbance during noe flight are studied in this dissertation. and the use of h robust control and dynamic inversion schemes in flight control system are discussed
本文主要對貼地飛行時武裝直升機的飛行控制系統進行深入的研究和探索，討論了貼地飛行時氣流擾動對直升機系統的影響，研究了h _魯棒控制和動態逆控制在直升機飛控系統中的應用。 -
In the paper we expound the total structure design of the diameter measurement, the working rinciple and overall structure ofthe diameter measurement are introduced, the choose of optics principle, the special optical system which consist f lens, the design of fine mechanics system, and the choose of light to current inversion as well as computer control and data processing system
本論文完成了測徑儀的總體方案設計，並對系統的工作原理和總體結構進行了論述。由f透鏡構成的特殊光學系統的確定，精密機械繫統結構的設計，光電變換及微機控制與數據處理系統的確定，最後對激光在線掃描檢測系統的精度進行了綜合分析。 -
In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems
第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。 -
In chapter 3, we studied the effect of gaussian transverse profile for the driving and laser fields on lasing without population inversion ( lwi ) in a closed v - type system and an open v - type system. moreover, we discussed also the effect of the unsaturated gain coefficient, the cavity - damping rate, the ratio of the atomic injection rates and atomic exit rate on the corresponding systems. in chapter 4, we mainly discussed the effect of doppler broadening on the gain, dispersion and the frequency up - conversion of the open v - type lwi system and compared the differences and the same between the open system and the corresponding closed system
發現： （ 1 ）在考慮doppler展寬的情況下，通過選取合適的實驗室條件（比如合適的原子環境溫度等）可得到合適doppler展寬值，從而使系統獲得最佳增益； （ 2 ）要想實現系統的頻率上轉換，同時又要獲得足夠強的無反轉激光增益，則系統頻率轉換比不能選取的太大； （ 3 ）對于開放系統，比較小的粒子注入速率比與退出速率對產生無反轉激光是有利碩士學位論文摘要的： （ 4 ）由於dopp1oy展寬的存在，當探測場與驅動場的傳播方向相反時，增益在探測場失諧的某一段區域產生振蕩，且振蕩的振幅、頻率失諧范圍的大小與dopper展寬的取值有關。 -
In the paper, we expound the total structure design of the measuring instrument, the choose of optics principium, the special optical system which consist of f lens, the design of servo control systemic, and the software and hardware design of light - to - current inversion and control of the servo, and the design of sqc statistical quality control and supervisory system. at last, the accurate of laser beam on - line measuring instrument has been analyzed
本論文完成了檢測儀的總體方案設計，儀器工作原理的選擇，由f透鏡構成的特殊光學系統的確定，伺服機構和伺服控制系統的設計，光電變換及通訊系統的軟、硬體設計， sqc統計質量控制與管理系統的設計，最後對激光在線掃描檢測系統的精度進行了綜合分析。 -
Through the analysis of the simulated sar images for different sar system parameters, observing conditions, ships " types and motion parameters, as well as sea state parameters, the thesis has studied the optimal observing conditions for different kind of wakes and probed into the problem of motion parameters inversion and wake detection
通過對不同的sar系統參數、觀測條件，艦船類型和運動參數以及不同海況參數下模擬的尾跡sar圖像的分析，研究了不同類型尾跡的sar最佳觀測條件，探討了運動參數反演和尾跡檢測的方法。 -
Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system, by coupling mass and momentum conservation equations of two - fluid model. the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model. the phenomena of catastrophic inversion and transitional inversion are explained. the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model. according to the theory herein, emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process. the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers
文摘:以雙流體模型為基礎，通過質量守恆方程和動量守恆方程的耦合，提出了液-液兩相系中彌散傳質的連續波模型.由該模型得到彌散傳質過程阻塞和彌散傳質過程弱不穩定性產生的條件，計算了液滴尺寸及其分佈對乳化液極大堆砌分數的影響，解釋了劇變型乳化逆變和漸變型乳化逆變現象.研究結果表明，乳化逆變是由於彌散傳質過程的不穩定性而引起的懸浮體型態的改變，隨液滴尺寸多分散性的增大，極大堆砌分數增大；隨液滴平均尺寸的增大，多分散性對極大堆砌分數的影響減弱；當韋伯數足夠大時，液滴尺寸及其分佈對乳化液極大堆砌分數無影響 -
Design of flight control system for helicopters based on inversion control technique and fuzzy logic
基於逆控制和模糊邏輯的直升機飛控系統設計 -
( 4 ) using the previous knowledge to restrict the import information of inversion system is a new method to improve inversion effect especially under the complex conditions
（ 4 ）有效地利用先驗知識對反演進行有效的約束是提高復雜地層條件下聯合反演效果的一個新的思路。
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