problem shift 中文意思是什麼
problem shift
解釋
問題轉換-
Vsp is both a pivotal tache in logistic distribution optimization and indispensable in electronic commerce. it can increase logistic economic benefit and realize logistic rationalization. the systemic study on the theory and method of vsp is the base on the growth of logistic intensivism, the establishment of modem chain of command, the development of its and ec. now, the problem is not only applied to the field of auto transportation, but also to ship avigation communication electricity industry management computer application etc. the algorithm has been applied into many combinatorial optimization problems such as the trainman ' s shift arrangement in avigation the optimization design of cargo arrangement in ship company
對貨運車輛進行調度優化，可以提高物流經濟效益、實現物流科學化。對貨運車輛調度優化理論與方法進行系統研究是物流集約化發展、建立現代調度指揮系統、發展智能交通運輸系統和開展電子商務的基礎。目前，問題的形式已有很大發展，該問題以不僅僅局限於汽車運輸領域，在水運、航空、通訊、電力、工業管理、計算機應用等領域也有一定的應用，其演算法已用於航空乘務員輪班安排、輪船公司運送貨物經過港口與貨物安排的優化設計、交通車線路安排、生產系統中的計劃與控制等多種組合優化問題。 -
In an mos dynamic shift register the above problem is solved by keeping data in continuous motion.
MOS動態移位寄存器的上述問題是通過使輸入數據連續不斷地循環來解決的。 -
But the shift of military attention to the soviet union, the refusal of european civil authorities to allow unmanned planes in their airspace, arms - control agreements and the perennial problem of accurate navigation over long distances conspired against uavs
但是種種因素聯合起來針對無人機的實際應用，其中包括軍事焦點轉移到蘇聯、歐洲各國權力機構拒絕無人駕駛的飛機進入其領空、武器控制協議以及遠程精確導航所長期存在的問題。 -
Or perhaps the problem lies not in equality, but in the ambivalence that inevitably surround a titanic cultural shift only decades old
或許問題不在平等。雖然這場文化轉變只有十多年的歷史，但隨之帶來的那種無法躲避的無可適從才是癥結所在。 -
As the main research institute of ring laser gyroscopes in china, teaching and research section 208, nudt, is always puzzled by the problem of null - shift in the process of developing mechanically dithered ring laser gyroscopes ( mdrlg ). the problem is that the mdrlg ' s null shift equal to the integral times of dither periods when the sample time is set as integer dither periods
作為國內激光陀螺主要研製單位的國防科大208室，在機械抖動激光陀螺（機抖陀螺）研製過程中一直為零漂問題所困擾：實驗測得機抖陀螺零漂為抖動周期（采樣時間取整數個抖動周期）的整數倍。 -
The second part, which includes chapter 3 and 4, is designed to discuss the problem about geometric quantum computation : the study of the effective controlling and manipulating on the two - qubit conditional geometric quantum phase - shift gate and the realization of the two - qubit nonadiabatic conditional geometric quantum phase gate
第二部分包括第三章和第四章，這部分主要討論幾何量子計算問題：兩量子位條件幾何量子相移門的有效控制和操縱及兩量子位非絕熱條件幾何量子相位門的實現。 -
Thus the principle to deal with the four basic waveforms is put forward and a new phase - demodulation circuit is designed. experiments for the two circuits on same gyros are made and they indicate clearly that the mdrlg ' s null - shift problem consists in the faultiness of the old phase - demodulation circuit
在此基礎上，提出了處理計數信號過鎖區波形的基本原則，進而設計了新的鑒相電路，並在同一陀螺上對兩鑒相電路進行了對比實驗。 -
The shift arrangement problem belongs to the domain of combination optimization and plays an important role in airlines ’ operating control
機組排班問題是屬于組合最優化的問題，在航空公司的運營控制中佔有重要地位。 -
The problem of precisely testing for pressure sensor ' s thermal zero shift, thermal seneitivity shift, non - linearity, hysteresis repeatability, in different temperature condition are solved. it hes important for pressure sensor ' s development and use
解決了壓力傳感器的熱零點漂移、熱靈敏度漂移、非線性、遲滯和重復性在不同溫度環境條件下難以精確檢測的問題，為壓力傳感器的研究和使用提供依據，在壓力傳感器研製和生產中有著重要的應用價值。 -
By 1 - d fourier transform, we could analyze wave spectrum and get wave speed by computing phrase shift, then calculate the velocity of the wind, so we can avoid the problem of " sub - pixel motion "
使用傅立葉相位分析法，對示蹤雲進行頻域波譜分析，由諧波的相位變化計算波速，繼而得出風速，能夠避免「亞像素尺度位移」問題，提高導風的精確度。 -
Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent
本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。 -
A nonlinear boundary value problem with a kind of shift and conjugate value for generalized analytical functions in c2 space
2空間中廣義解析函數的一個帶位移帶共軛值的非線性邊值問題 -
This thesis combined the genetic algorithms and the heuristic algorithm to generate applicable and efficient crew task for the problem of crew task assignment. this method has taken full consideration of shift arrangement rules and operating cost, so it fits the practical situation quite well. main research work in this thesis includes : 1
本文主要針對機組任務配對問題，提出利用遺傳演算法和啟發式搜索演算法，產生可行、高效的機組任務配對，此方法在研究中能充分考慮到機組任務配對中的排班法規和運營成本因素，因此能更好的結合到實際應用。 -
To solve this problem, this thesis will focus on investigation of the following detection methods based on the features of the dsss signal and with the binary - phase - shift - keying dsss ( dsss / bpsk ) signal as an example. 1. the power spectrum of the dsss / bpsk signal is discussed and the detection performance in each power spectrum estimation method is compared in terms of nonparametric methods, parametric methods and subspace methods in power spectrum estimation
本文針對這一問題，從dsss信號特徵出發，以二進制相移鍵控的直接序列擴頻（ dsss / bpsk ）信號為例，研究了以下檢測方法: 1 .從功率譜估計的非參數方法、參數方法和子空間方法入手，討論了通過不同類型方法估計的dsss / bpsk信號功率譜，並比較了各功率譜估計方法應用於dsss / bpsk信號檢測的性能。 -
Because the signals of the target reflections are coherent, the reconstructing matrix algorithm which uses the time - shift correlation method is studied. not only has it the good ability to solve the coherence problem, but it also reduces the computation because of the time - shift correlation instead of the eigenvalue decomposition
由於雷達系統中目標回波具有相關性，必須考慮解相干處理，所以研究了利用時移相關去噪的矩陣重構演算法，該演算法具有較好的解相干能力，且用時移相關去噪免去了特徵分解去噪過程，可直接使用esprit演算法求解旋轉不變關系，簡化了過程，減小了計算量。 -
The problem is much more critical when the inverter frequency is high. in a welding machine, the main circuit with the technology of the soft - switching is much idealer than the hard - switching. firstly of all, by the theory of the soft - switching, this paper relatively analysis the advantages of the soft - switching and, with the help of the simulation software pspice, analyzes the main circuit of the full bridge shift - phased zero voltage zero current ( zvzcs ) soft - switching
結合軟開關實現原理，本文首先對比分析了軟開關在提高效率、降低emi干擾等方面的技術優勢，通過pspice軟體模擬，分析研究了全橋移相零電壓零電流（ zerovoltagezerocurrent - - - - zvzcs ）軟開關電路，詳細介紹了該電路的軟開關實現過程，並給出了電路模型和關鍵元件的設計參數。 -
Phase - shifting errors have a great influence on the measuring - accuracy. a few of algorithms have been developed to solve linear phase - shifting errors, but ca n ' t solve the problem of random phase - shifting errors. an iterative least - squares fitting method has been proposed by in - bok kang to solve random phase shift errors in each interferogram
在這種方法中相移的誤差對測量結果的準確性有較大影響，雖然已經出現了不少演算法能解決線性相移誤差，但要解決相移過程中的隨機相移誤差問題，還存在一定的困難。 -
The exist of disadvantages is very common things either in develop countries or in developing ones. with the farther development of the market economy and the sharply shift of the social structure, the social disadvantages problem becomes one of obvious risky elements affecting the stability and development of society and one of the key problem of sustaining development and achieving the well - to - do object, and so all walks of life pay more attention to it
弱勢群體是發達國家和發展中國家都存在的一種普遍的社會現象。隨著我國市場經濟的發展和社會結構的急劇轉型，弱勢群體問題凸顯，成為影響社會穩定與發展的重要風險因素，並成為社會持續發展與實現小康目標的關鍵問題之一。 -
In this paper, measurement techniques of both rigidity and soft medium materials have been systemic researched. corresponding measurement has been proposed and many problems on dielectric materials ’ measurement, such as phase shift ambiguity problem, instability problem and so on, have been solved
本文對剛性介質材料和柔性介質材料的測試技術進行了系統的研究，提出了相應的測試方法，解決了介質材料測試的諸多問題，如相位模糊性問題、不穩定性問題等。 -
The method was correlate search and fft carrier detection, which could solve the problem of the capture of the spread spectrum code under the condition of low snr and big frequency offset. we also put forward a method, shift receiving window and correlate with local sequence, which not only could solve the problem of symbol synchronization but also could acquire the statistics of the multipath. then we utilized the results of the channel estimation and the technology of rake receiver to decode the received spread spectrum sequence and acquire rude information
方案中提出了：相關搜索、 fft檢測信號載波的方法，解決了低信噪比、大頻差條件下擴頻碼的同步捕獲難題；滑動相關完成位同步的方法，解決了低信噪比下的同步問題；在時域利用相關進行通道估計，然後利用rake接收技術完成相關解擴的方法，一定程度上解決了多徑衰落影響解擴性能的問題。
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