法爾伯特 的英文怎麼說
中文拼音 [fǎěrbótè]
法爾伯特
英文
valbert- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 爾 : [書面語]Ⅰ代詞1 (你) you 2 (如此; 這樣) like that; so 3 (那;這) that Ⅱ[形容詞后綴: 率爾而對 ...
- 伯 : 伯名詞1 (伯父) father s elder brother; uncle2 (在弟兄排行里居首) the first [eldest] of brothe...
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
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As we all known, with the founding of euclidean geometry in ancient greece, with the development of analytic geometry and other kinds of geometries, with f. kline " s erlanger program in 1872 and the new developments of geometry in 20th century such as topology and so on, man has developed their understand of geometry. on the other hand, euclid formed geometry as a deductive system by using axiomatic theory for the first time. the content and method of geometry have dramatically changed, but the geometry curriculum has not changed correspondingly until the first strike from kline and perry " s appealing
縱觀幾何學發展的歷史,可以稱得上波瀾壯闊:一方面,從古希臘時代的歐氏綜合幾何,到近代解析幾何等多種幾何的發展,以及用變換的方法處理幾何的埃爾朗根綱領,到20世紀拓撲學、高維空間理論等幾何學的新發展,這一切都在不斷豐富人們對幾何學的認識;另一方面,從歐幾里得第一次使用公理化方法把幾何學組織成一個邏輯演繹體系,到羅巴切夫斯基非歐幾何的發現,以及希爾伯特形式公理體系的建立,極大地發展了公理化思想方法,不管是幾何學的內容還是方法都發生了質的飛躍。Hilbert called the above approach the genetic method.
希爾伯特稱以上的處理為原生法。Gilbert persisted, anxious and determined because of his innate opposition to clyde to keep him there if possible.
吉爾伯特堅持自己的看法,態度又急躁又堅決。因為他心底里對克萊德反感,只要能做到,就想把他留在那裡。A veteran of the long con, and a respected grifter of the old - school generation, albert ' s job in the team is to pick the right targets ( " rope the mark " ) for his con colleagues
阿爾伯特不僅是「放長線吊大魚」的老法師,還是個令人尊敬的詐騙老前輩,在團隊中,阿爾伯特的主要工作是為夥伴們選擇一個正確的目標人物(對目標下套) 。Unforgettable were their concerts at radio city music hall, at madison square garden and at carnegie hall in new york, at the royal albert hall in london, at the olympia in paris, in the red square in moscow, and many others
在紐約的廣播城市音樂廳,麥迪遜廣場花園和卡內基音樂廳,倫敦的皇家阿爾伯特廳,巴黎的奧林皮亞中心,莫斯科的紅場和世界其他許多地方,他們流下的歌聲讓人無法忘懷。Based on the examination of the number theoretic backgrounds of gauss and hilbert and the relevant mathematical development in 19th century, a discovery is made by induction that the solvability and the scientific value of mathematical problems may change with time
運用歸納方法,通過對高斯、希爾伯特兩人數論背景的比較以及對19世紀相關數學進展的考察,得出數學問題在不同歷史時期可解性及科學價值會發生改變的結論。There are two types of end effects in the empirical mode decomposition method : in the spline interpolation and in the hilbert transform
2經驗模態分解方法中,有兩種端點效應:在樣條插值中以及在希爾伯特變換中。The use of gilbert's method sharpens our field observations.
吉爾伯特方法的應用使我們的觀測結果更具有說服力。" the transfer was concluded for a sum of ? 20million. it was a good transaction, " aulas told the associated press after a lyon friendly at albertville, france
「馬盧達的轉會費為2000萬歐元,這是一筆很好的買賣, 」奧拉斯在里昂在法國阿爾伯特維爾進行了一場友誼賽后的新聞發布會對媒體說。We propose a chaos - based generation of the random ppm - ps signals, design and implement a generator of the ppm - ps signals. we introduce an if sampling technique and simulate the performances of digital demodulation techniques of using hilbert filters, sine filters, bessel filters and poly - phase filters. the poly - phase filtering method can achieve the higher mirror - frequency rejection ratio by using the low order filters
介紹了中頻采樣技術,並對希爾伯特濾波法、辛格內插函數修正、貝賽爾函數插值法及多相濾波法等數字解調演算法進行了計算機模擬和性能比較,指出多相濾波法能以較低的階數實現較高的鏡頻抑制比。Each demodulation analysis technique has its merits and limitations. in this paper, the principal and limitations of the hilbert transform and generalized detection - filtering demodulation analysis are systematically studied
通過系統分析和對比現有幾種解調分析方法各自的優缺點,本文深入研究了希爾伯特變換和廣義檢波濾波解調分析技術的原理、局限性及其工程中的應用。It can also determine the fault spot and reason. this technology has been used in some technological fields and proved efficient. it has promoted the revolution of maintance system and the historial protection is replaced by preventive maintenance. with this technology, we can improve the reliability of machine and decrease the maintance fee. recently, reserch has pick up a fervent pace in the area of fault diagnosis of electrical machines. the paper simply analyzes the fault reason of electrical machines, stressly describes and explores the methods of condition monitoring and fault diagnosis such as partial discharge, stator current, rotating speed, vibration etc. fault prognosis is now include diagnostic feature, reason, spot. prodigious improvement in signal processing hardware and software has made this possible. primarily, these techniques depend on locating specific harmonic components of the fault. these harmonic components are usually diffirent for diffirent types of faults. automated tools such as fuzzy logic based system is also simply presented in the paper
本文從絕緣結構的故障機理入手,以絕緣結構故障的典型特徵? ?局部放電為研究對象,重點討論局部放電的在線監測方法、適用場合併比較它們的優缺點;在分析籠型異步電機轉子斷條在線監測的定子電流監測方法后,根據其缺陷,本文探討了溫升不平衡法、希爾伯特變換數字濾波、小波包分析法的原理及優點;以電機軸承、氣隙偏心等故障為研究對象,通過對電機振動和轉速頻率的檢測,診斷電機的故障類型;本文的重點工作是將人工智慧技術中的模糊技術應用於電機的狀態監測和故障診斷中,力求使電機故障診斷更接近人工智慧化;最後,本文對電機狀態監測和故障診斷系統進行了硬體和軟體初步設計,為實現預測維修提供了有效的技術手段。Firstly, a method to estimate the rotor speed, which is based on bp neural network, is introduced in this paper. secondly, the park vector approach is used to monitor and diagnose the inter - turn fault of the stator winding. finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the hilbert transform and digital filter
具體工作如下:採用bp神經網路對異步電動機轉子轉速進行無速度傳感器估計;對定子繞組匝間短路故障,採用派克矢量方法進行監測與診斷;對于轉子斷條故障,詳細介紹了一種新的基於希爾伯特變換與數字濾波的在線監測方法。In the recent years, as the proportion of mechanic industry in nation economy increases, the requirement for safe operation of mechanic equipment is higher and higher. due to that all kinds of technology are progressively applied to mechanic equipment fault and diagnosis, such as signal processing, pattern recognition, etc., mechanical equipment fault and diagnosis technology has been developed rapidly all over the world. the reciprocating pump as a part of mechanic equipment field takes up very important station in production department, such as the petrochemical industry. because its applications are very widely, making researchs about its fault and diagnosis has important meaning. though people have already made out some researchs and obtained some research results, but the total diagnosis level is not still very high. based on former research results, according to the strong non - stationary characteristic of the pump valve signal of the reciprocating pump, this text introduces hilbert - huang transform ( abbreviated as hht ), and diagnosed the pump valve faults of the reciprocating pump well
雖然人們已對其開展了不少研究並取得了一些研究成果,但總的診斷水平還不是很高。本文在基於前人研究成果的基礎上,根據往復泵泵閥信號的強非平穩特性,引入了希爾伯特-黃變換(簡稱hht ) ,對往復泵泵閥較好地進行了診斷。往復泵由於其結構復雜,激勵源多,故其信號為強非平穩信號,對其進行故障特徵提取和診斷比較困難,所以本文主要研究了往復泵泵閥振動信號的特徵提取方法。To solve this problem, some researches on denoising for the nonstationary and noisy - strong signal are carried out in this paper. combining hilbert - huang transform ( hht ) which has been proved to be more valid in the aspect of time - frequency analysis, with mature wavelet transform ( wt ) threshold theory, an emd - based wavelet threshold denoising algorithm is presented
針對這個問題,本文也開展了對信噪比較低的含噪非平穩信號的去噪研究工作,並將具有比小波變換更強時頻分析能力的希爾伯特?黃變換( hht )與成熟的小波閾值理論相結合,提出基於emd的小波閾值去噪演算法。First of all, the emd - based wavelet threshold denoising algorithm is apllied to denoise noisy structural response data to reduce the effect resulting from noise. during the process of the empirical mode decomposition ( emd ), the two boundaries of the response signal are processed with semi - periodical ? semi - symmetrical method. subsequently, hilbert - huang transform ( hht ) is used in identifying structural intrinsic frequency
這套技術用以解決實際工程應用中遇到的在信噪比較低情況下通過結構的響應信號來進行結構損傷識別問題,即先用基於emd的小波閾值去噪演算法對含噪結構響應進行去噪處理,以有效降低噪聲影響(在去噪的emd處理過程中,對信號的邊界採用「半周期半對稱」延括演算法來抑制邊界誤差) ,然後再用希爾伯特?黃變換( hht )進行結構的固有頻率識別,最後計算出結構剛度。Because reciprocating pump has complicated structure and more exciters, so its signal is a strong non - stationary signal, and carrying out fault feature extraction and diagnosis is very difficult to it, this text mainly researches on featute extraction of reciprocating pump ’ s valve vibration signal. this text introduces hht that huang put forward, it is a kind of signal processing method that suits for dealing with the stationary signal, and suits for non - stationary signal also. although the hilbert - huang transform ( hht ) is an effective tool processing the non - stationary signal, the hht based on emperical mode decomposition ( abbreviated as emd ) algorithm which adopts the cubic spline interpolation could n ' t acquire accurate characteristics for the strong non - stationary signals in that the spline produces an accurate result only under the condition that the data consists of values of a smooth function
本文引入了huang等人提出的hht , hht是一種既適合於處理平穩信號也是一種適合於處理非平穩信號的信號處理方法。盡管希爾伯特-黃變換( hht )是處理非平穩信號的有效工具,但基於經驗模態分解(簡稱emd )的hht由於採用三次樣條插值而不能準確提取強非平穩信號的特徵,因為三次樣條插值只有在數據由光滑函數值構成的情況下才能產生精確的結果。為了解決這個問題,本文提出了基於改進的emd演算法,即採用分段三次hermite插值多項式( pchip )作為極值包絡的方法。Chapter two introduced the basic ideas of emd theories briefly, and then discussed the emd - based time - frequency analysis method ' s basic agrithom. the conclusion was deduced that the method is valid in the field of signals processing and fault diagnosis in rotating machinery by simulation and real signal analysis. chapter three discussed the origin of emd method ' s end effect, then studied the direct, time - series based and neuron network based data extention technologys to weaken the end effect
第二章介紹了基於emd時頻分析方法的一些基本概念;闡述了emd方法和基於emd的希爾伯特變換的基本原理和演算法;在此基礎上,用基於emd的時頻分析方法對模擬和實際信號進行了分析驗證,結果表明把該方法引入旋轉機械振動信號時頻分析和故障診斷領域是有效的。The study state of art and development trend of structural damage identification research is simply summarized in this paper. hilbert - huang transform ( hht ) is applied to the damage identification and intrinsic frequency confirmation of time - variable structures. furthermore, a kind of inverse calculation is presented to calculate structural stiffness. this method can solve three main problems : the time that damage occurred, the location and the degree of damage
本文簡要總結了結構損傷識別領域的研究現狀和趨勢,圍繞損傷引起固有頻率變化這個特徵,將希爾伯特?黃變換( hht )應用於時變結構的損傷識別和損傷前後固有頻率確定上,並結合牛頓迭代法,對結構剛度進行反演計算,從而解決結構損傷識別領域所關注的三個主要問題:損傷發生時間、損傷位置以及損傷的程度。A method using transient frequency based on complex - analytical - wavelet - transform, which combines hilbert transform with wavelet transform and possesses adaptive analytical ability, is proposed
該方法將希爾伯特變換與小波變換相結合,具有自適應分析能力。分享友人