law of precision 中文意思是什麼
law of precision
解釋
精確律-
Gathering fuzzy technique and model - identifying technique to processing research, fuzzy model - identifying technique, a intersecting science, has been come out, which has become hoto in this thesis, based on deeply researching the fuzzy unit - identifying and complete analysis on data of measuring well of the chandqing wushenqi district, the method of constructing self - adapting multi - dimension non - liner subjection degree function has been created without precedento based on the extraction of routine measuring well character parameters, and for adopting self - adapting method to carry through character compression, the model has been improved the performance and enhanced the convergence speed and sorted precision of the algorithm o the relation of measuring well information and the oiliness & gassiness of sandstones is fuzzy ? in the thesis, the law of max subjection degree has been studied and improved, and proved preferable effect in the practical application
論文在提取一些常規測井特徵參數的基礎上，採用自適應方法對各變量多項式進行優選，減少了特徵參數間的相關性，突出了類別間的差異性，從而優化了模式的質量，提高了分類的精度。測井信息和砂體的儲集性之間的關系是帶有模糊性的，論文對模糊「最大隸屬原則」進行了研究和改進，並在實際應用中取得了較好的效果。論文成功研製了「自適應」的演算法和軟體? ?即通過對正確回判率的比較，然後對參數進行調節的辦法，可將模式「訓練」到最佳狀態。 -
For a class of series - wound active power line conditioner the design approach law of a new fuzzy integral sliding mode variable structure control is presented. this method adjusts power electronic switch in order to achieve anticipated balance volt, finally makes active power line conditioner not only possess good robustness of variable - structure control and decrease vibration to the most but also increase the steady state precision. series - wound aplc adopted this control method possesses good dynamic and steady state performance
針對串聯型有源電網調節器運用變結構控制策略，調節電力電子開關模式，以獲得預期的平衡電壓，對串聯型有源電網調節器提出了模糊積分變結構控制方法，使串聯型有源電網調節器既保持了常規滑模控制強魯棒性的優點，又減弱了滑模控制的抖振，提高了系統的穩態精度，使系統具有良好的動態和靜態性能，模擬試驗表明該控制策略是一種十分有效的控制方法。 -
Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied
本文針對電站風機性能監測系統研究較少的現狀，在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響，並在此基礎上採用無節流方法測量流量，以風機調節性能曲線為依據，建立了基於徑向基函數（ rbf ）神經網路的風機流量全程監測模型；以實驗室4 - 73no . 8d離心風機為研究對象，探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律；最後用visualc + +語言開發了風機性能在線監測系統。 -
The paper analyzes and discusses the law that the result precision of thermal stress is affected by the proportionments of element border length, border condition, form function and so on, and compares the method with displacement finite element method being used
分析、討論單元邊長比、邊界條件以及插值函數形式等對熱應力結果精度的影響規律，並與現有的位移有限元方法進行比較、分析、評述。 -
Second part - the main contribution and research results of this paper are focused on as follows : ( 1 ) how to use the measurements of a dual frequency gps receiver to determine the ionospheric delay correction model for single frequency gps of a local range ; ( 2 ) how to separate the instrumental biases with the ionospheric delays in gps observation ; ( 3 ) how to establish a large range grid ionosphere model and use the gps data of chinese crust movement observation network to investigate the change law of ionospheric tec of china area ; ( 4 ) how to improve the effectiveness of correcting ionospheric delays for waas ' s users under adverse conditions. ( 5 ) how to establish the basic theory and the corresponding framework of monitoring the stochastic ionospheric disturbance using gps ( 6 ) how to improve the modelling ability of ionospheric delay according to its diurnal, seasonal, annual variations based on gps ; ( 7 ) how to meet the demand of correcting the ionospheric delay of high - precision orbit determination for low - earth satellite using a single frequency gps receiver 1 extracting ( local ) ionospheric information from gps data with high - precision the factors are systematically described and analyzed which limit the precision of using gps data to extract ionospheric delays
二、具體研究工作的系統報告，主要集中在以下幾方面：研究如何利用單臺雙頻gps接收機的觀測信息確定電離層延遲改正模型，為小范圍的單頻用戶服務；研究如何實時分離gps觀測中的儀器偏差與電離層延遲；研究如何建立較大區域的電離層格網模型，進而初步設想利用中國地殼運動觀測網路深入研究我國領域的電離層的電子濃度變化規律；研究單頻用戶在不利條件下，如何更好地利用電離層延遲改正信息；研究利用gps監測隨機電離層擾動的基本理論和框架方案；研究如何綜合顧及電離層的周日、季節和年變化，進一步提高利用gps模擬電離層延遲的能力；研究如何實現星載單頻gps低軌衛星的精密測軌中的電離層延遲改正要求。 -
In this paper, the brief history and the current condition in the classification of the genus acer linn. have been reviewed. i have also compared the precision of the ancestors ' studies and then studied the classificating evidence, the law of origin and evolution and geographical distribution. by identifying and studying the specimens, 1 ensure that there lie 20 species and subspecies and 8 varieties which belong to 3 subgenus in henan province. i add 3 species and 2 varieties which were not recorded in flora of henan such as acer tegnentosum maxim. a. tsinglingense fang et hsieh, a. shensiense fang, a. buergerianum miq. var. ningpoense ( hance ) rehd
作者通過對河南槭屬植物的分類研究，確認了本省槭屬植物共計20種、 1亞種和8個變種，隸屬於3亞屬12組，增補了《河南植物志》中未記載的但河南有自然分佈的3個種、 2個變種：青楷槭acertegnentosummaxim .秦嶺槭a . tsinglingensefangethsieh 、陜西槭a . shensiensefang 、寧波三角槭a . buergerianummiq . var . ningpoense （ hance ） rehd .和蒿蘋四蕊槭a . tetramerumpaxvar . haopingensefang .訂正了《河南植物志》和《河南種子植物檢索表》中一些分類學問題。 -
This method can rapidly extract speed law from starting current of dc motor with fairly good precision, and thus the torque - speed characteristic can be acquired
並通過提取直流電機起動過程電流信號的瞬時頻率有效地研製了一套無轉矩轉速傳感器直流電機的快速測試系統。 -
The conventional determinate algorithm only uses the law of the mass to calculate chemical channel ' s speed. after our approvement the determinate algorithm enhances the calcualtive precision by selecting michale ' s equation, salt effect equation and so on formulas to calculate the reaction speed, which have the more rigorous applicable condition
傳統的確定型演算法是單純地應用質量作用定律計算化學反應的速度，經過我們改進后的確定型演算法還可以通過選擇不同參數，用米氏方程、原鹽效應方程等適用於特定條件下公式來進行運算，增加了計算的精度。 -
Validation of the observing velocity data in different channels indicates that the velocity distribution law given by authors is in accordance with the real velocity - distribution perfectly in open channel ; and the relative error between observing value and calculating value of point velocity is small, which can satisfy the precision requirement in the calculation of velocity distribution and discharge in open channel
採用不同管道流速資料進行驗證，表明所提出的明渠流速分佈律與實際分佈一致，對應測點流速相對誤差較小，可以滿足明渠流速分佈及流量計算精度要求。 -
The characteristic of method is, in every process of iterative learning, after obtaining better approaching precision of network training for model identification iteratively, the feed - forward action of iterative learning control law for the next trail is constructed by output signals of the neural network, and then integrated with feedback control to track the desired trajectory of robot in real time
該方法的特點是，在每一次迭代學習過程中，使神經網路訓練到對模型的辨識達到比較好的逼近精度后，利用神經元網路的輸出構造下一次迭代學習過程中控制律的前饋部分，再將它與實時反饋控制結合，形成本文提出的魯棒迭代學習控制演算法，並對機器人系統進行控制。 -
Abstract : factors that influence the delay precision of commerical delay detonator were introduced. the charging and pressing technique, variation and time variation law of the composition, the powder processing was discussed
文摘:介紹了工業延期雷管延期精度的影響因素，並對裝配工藝中的裝壓藥工藝方法、藥劑變化原因、藥劑時間變化規律和制藥工藝控制進行了討論。 -
Based on a lot of experiments, the statistics law of gps positioning data is found and the simple multiple digital filter algorithm that suits the single chip microco ntroller is adopted to optimize the positioning data. the positioning precision is improved effectively. according to the optimization result, the vertical scan line algorithm is used to discriminate the position status of navigation mark
選用gps接收機採集航標的位置信息，通過大量的實驗總結出gps定位數據的統計規律，使用簡單的適合單片機使用的復合數字濾波法優化定位數據，有效提高定位精度，並根據優化結果，採用垂直掃描線演算法判別航標的位置狀態。 -
Due to the distinct superiority of wavelet transform ( wt ) and wavelet packet transform ( wpt ) in time - frequency analysis of non - stationary signals, instantaneous frequency law can be obtained directly from amplitude of wpt coefficients. thus an indirect t - n characteristic testing method can be implemented with satisfying precision
該系統可以作為基於pc機與數據採集卡的自動測試系統的一個很好的例子，它充分利用了pc機豐富的計算資源與快速的運算速度，在間接法測試中具有獨到的優勢。 -
The law of precision transfer from digital model to rapid prototyping was studied too. the modification project to digital model was brought forward then. finally, the interrelated experiment is done to validate the law got from the research
通過對lom快速成形系統及其製件精度的分析，研究了數字模型快速原型之間的精度傳遞規律，提出對數字模型的修改方案，並利用研究所得精度傳遞規律，進行實驗驗證。 -
There are lots of factors which influence the evolvement law of sediment discharge, and it is very difficult to be known and gained, it results in low precision of simulation and forecast
摘要影響輸沙量演變規律的前期因素比較多，且難于確定和提取，這就造成對輸沙量的擬合和預測精度較低。 -
First we identify the controlled plant offline, when the precision reaches a certain extent, we will achieve recursive predictive model by on - line identification. finally we acquire the optimized control law by minimizing the function of performance guideline
首先對被控對象進行離線辨識，在模型辨識達到一定的精度后，再在線遞推得到預測模型，最後通過極小化性能指標得到最優控制律。 -
In this thesis, the ann is designed to a failure sorter which is used to detect the failure of control surfaces in order to get the losing status of each control surface and improve the rapidity and precision of the control surface failure detection. here, it is a control law robust, learning kinds of faults peculiarity, adopting in - out data to training net. causing training, we can raise its precision and speed
本文將神經網路作為一個控制器用於故障狀態下的控制律重構，通過神經網路學習各種故障狀態的非線性特性，同時實時採集系統運行時的輸入輸出值作為訓練數據進行訓練，以此來提高重構的速度和精度。
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