統計聲學 的英文怎麼說
中文拼音 [tǒngjìshēngxué]
統計聲學
英文
statistical acoustics- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 統計 : 1 (對有關數據的搜集、整理、計算和分析) statistics; census; numerical statement; vital statistic...
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Hangzhou hing kwok - ting electronic intelligence engineering limited, established in 1995, the company has more acoustic experts, rich experience in the construction works, long in the field of architectural acoustics and audio video systems design optimization
杭州興鼎電子智能化工程有限公司,創建於1995年,公司擁有多名聲學專家,有著豐富的工程施工經驗,尤其擅長于建築聲學的設計及音視頻系統的優化處理。Abstract : making use of test data and some instances presented in test, it could be apprvoed that partial resonant vibrations of acoustics system occurred in ultrasonic hoing. meanwhile, it was pointed out in this paper that flexible pole - oilstone holder could be considered as a single vibrations system when designing acoustics subsystem, as pioneers a new in designing acoustics system of ultrasonic honing
文摘:經試驗證實了超聲珩磨聲學系統中存在著局部共振現象,指出「撓性桿-油石座」振動子系統設計時可作為一個單獨的振動體系進行考慮,為超聲珩磨聲學系統設計開辟了一條新的思路。Psittacula agapornis ), oscine passenon ( emberiza rutila ) and the vocalizations of sub - oscine passerine ( melopsittacus undulates, psittacula agapornis ) after sectioning nxiits were recorded by sharp gf - 6060 recorder. cooledit2000, an acoustic analyzing software, was used to produce the original wave and it ' s expanded time windows, sonograms, spectrums and power static histograms. to distinguish the acoustic differences of their natural vocal and to find the changes of sub - oscine passerine ' s song after sectioning nxiits, the above results is acoustically analyzed and compared, expecting to provide some advantage to further explaining the mechanism of vocal production
本實驗以非鳴禽(家鴿、家雞) ,亞鳴禽(虎皮鸚鵡、牡丹鸚鵡)以及鳴禽(栗? )為實驗材料,記錄其正常叫聲以及亞鳴禽斷nxiits后的叫聲,用cooledit2000聲音處理軟體制出原始信號及其展開圖,聲圖,頻率譜圖以及能量統計分布圖,並對所得結果進行聲學比較分析,以期得到鳴禽、亞鳴禽及非鳴禽叫聲在聲學特性上的差異,以及亞鳴禽在斷神經后叫聲的聲學變化,旨在為進一步解釋其發聲機制提供幫助。In the recent years, with the development of such technologies as computer and digital signal processing, transaural technology based on system of kemar grows ; it has a broad future on the domain of electro acoustics, indoor - acoustics, yawp - acoustics, psychoacoustics, computer multimedia and manual virtual environment, which has expanded the scope of the system of kemar
但近年來,由於計算機技術,數字信號處理技術等方面的發展,在假頭型立體聲系統的基礎上,發展了聽覺傳輸技術。它在電聲、室內聲、噪聲、心理聲學、計算機多媒體和人工虛擬環境等許多方面有廣泛的應用前景,其內容已超過了假頭型立體聲這樣一種特殊的聲傳輸和重發系統的范疇。Features and their related standards on acoustic design of digital stereophonic film system
數字立體聲電影系統聲學設計的特點及其相關標準Students will learn designedly, purposefully and systematically the american and european pop vocalization through courses of vocalism, dance, percussion instrument, sign - singing and ear - training, recording, performance, band interpretation and music enjoying and music analysis
學生在校通過系統的聲樂課、舞蹈課、打擊樂課、視唱練耳課、錄音課、表演課、樂隊課以及音樂賞析課進行有計劃、有規模、有目的的系統歐美流行音樂唱法培訓。Jiefu has a strong r d team which organized of state grade acoustic expert, constructs an effective production and quality control system, possesses of denmark loudsoft acoustic design soft and american lms acoustic analysis soft, full set b k2012 acoustic testing system, korea sigma inspect and test system as well as a 520cbm anechoic room, several reliability laboratory and subjective audition room. facilitated by all the above - mentioned resource, jiefus engineers continuously design and create the excellent speaker unit and speaker system
公司憑藉由國家級聲學專家組成的技術研發隊伍,建有一套有效的生產質量控制體系,擁有丹麥loudsoft聲學設計軟體和美國lms聲學分析軟體全套的丹麥b k公司2012電聲測試系統,和韓國sigma測試及試驗系統,並配備有520立方米的消聲室,多個信賴性實驗室和主觀聽音室,通過這些完備的研究開發資源,傑夫工程師不斷設計並生產出優秀的揚聲器單元和系統。It is pointed that the concept of the acoustical design for gymnasiums should be an entity of the architectural acoustics and the designs of sound reinforcement that the concept of traditional optimal reverberation time in gymnasiums, which is actually the optimal articulation obtained by reverberation time and sound reinforcement, doesn ' t exist, and that the reverberation time in existing code for acoustical on gymnasiums can be widen
指出:體育館聲學設計的概念應該是建築聲學和擴聲系統設計的統一體;體育館不存在傳統最佳混響時間的概念,體育館「最佳混響」就是混響時間和擴聲系統結合達到的最佳清晰度概念;現行體育館建築聲學標準中混響時間可以放寬,其意義在於擴聲系統和聲學裝修的優化結合,從而節約國家相關建設投資。Firstly it discusses the value, meaning, background and method of this topic. then it deducts the single - bubble sound pressure, spectrum of sound pressure, power spectrum. according to the real situation of traveling bubble cavitation noise around a schiebe body, the mathematical model of single - bubble collapse is selected, furthermore, the mathematical model of mass traveling bubbles without interference effect is established, and the multi - peaks and rebound phenomenon while bubbles collapse is also analyzed with statistical method
首先論證了本項研究的意義,價值,背景和方法,然後推出了單空泡輻射噪聲聲壓,聲壓譜和功率譜,針對回轉體流動泡空化噪聲的具體情況,選擇了雙指數模型作為單空泡潰滅的數學模型,進一步建立了無干涉條件下的群泡輻射噪聲的數學模型,並用統計的方法分析了空泡潰滅時的多峰值和反彈現象。In this paper, after introduction of the code division multiple access ( cdma ) and orthogonal multicarrier ( mc ) technique, the system model of mc - cdma is analyzed and the bit error rate ( ber ) performance in downlink and uplink channel is shown in awgn channel by computer simulation
本文在碼分多址技術和正交多載波技術原理基礎上,分析了高斯白噪聲通道中多載波碼分多址( mc - cdma )系統的數學模型,並且使用不同的擴展碼對下行通道和上行通道誤碼率性能分別作了計算機模擬分析。Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas
與基本bp演算法相比,本文提出的魯棒自適應bp演算法具有以下優點: ( 1 )與魯棒統計技術相結合,通過訓練樣本相對偏差的大小,確定不同訓練樣本對能量函數的貢獻,來抑制含高噪聲干擾樣本對網路訓練的不良影響,從而增強訓練的魯棒性,提高網路訓練的收斂速度; ( 2 )採用相對偏差和絕對偏差兩種偏差形式對權值進行調整,提高了網路的訓練精度; ( 3 )在採用梯度下降演算法對權值進行調整的基礎上,通過將學習速率設為訓練誤差及誤差梯度的特殊函數,使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變,從而可以克服基本bp演算法容易陷入局部極小區域的弊端,使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored
二值化時對整體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論,特別對利用空間信息進行閾值選取進行了詳細論述;在對通過對基於數學形態學的細化的基礎上,討論序貫同倫形態細化演算法和保形的快速形態細化演算法;然後依據聯機字元識別原理框圖,分析了手寫數字的結構特點,提出了基於筆劃特徵的任意手寫數字在線識別技術和基於多級分類器任意手寫數字在線識別技術,對其中涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、整字匹配的距離準則進行了詳細敘述;繼而在對手寫數字的分割的基礎下對脫機手寫數字識別進行了研究,對基於最小距離分類器字元識別、基於樹分類器的字元識別、基於自適應共振( art )網路的字元識別分別進行了詳細討論,並引入置信度分析將多個分類器進行了混合集成;最後簡單闡述了手寫數字識別的典型應用,對其在大規模數據統計、財務、稅務、金融及郵件分揀中的應用進行了探索。On the basis of increasing the flaw resolution of the x - ray radiographic system, the study is firstly concerned with the analysis made on the influence of such factors as redial sources energy, system noise, optics radiography and scattering on the radiographic system in theory, and the present dissertation looks at the methods for acquiring the radiographic system point sp read function, line spread function and module transfer function ( mtf ). on the basis of these studies, research the spread properties of the tiny flaw making use of mtf, acquiring the properties of system inspecting sensitivity and resolution, based on the system optimization designing
本文以提高射線成像系統的疵病解析度為前提,首先在理論上對射線源能量、系統噪聲、光學成像、散射等各環節對成像系統的影響進行分析,探討成像系統的點擴展函數、線擴展函數及其調制傳遞函數( moduletransferfunction ,簡稱mtf )獲取方法,在此基礎上,利用mtf研究微小疵病的擴展特點,從而得到系統的檢測靈敏度和解析度給出關系特性,為系統優化設計提供依據。The relations among the metric wave spike events, optical activities and related events recorded with the acousto - optical spectrograph during the 22nd solar cycle are statistically analysed in this article
統計分析了雲南天文臺聲光頻譜儀在22周峰年期間記錄到的米波尖鋒事件與光學活動及相關事件的關系。The magnitude of each type of noise listed above can be computed from elementary statistical principles.
上列各種類型的噪聲的大小可用基本統計學原理來計算。This paper begins with the drawbacks of the traditional reading practice, emphasizes on the designing programs and principles of computers. such as " the discoloring design of characters " leaping - type ", " the hiding design of characters " leaping - type ", " the regulator ' s design of reading speed ", " the time - limited automatic page - turning design ", " sound - controlling design of characters " discoloration " etc. then makes further statements about the advantages of reading practice design with assistance of computer, namely, the arousal of students " reading interest using fresh reading materials with vital forms ; the efficient controls of reading procedure, the realization of reading individualization, the realization of sounds " visualization
本文從分析傳統閱讀訓練的缺陷入手,重點介紹計算機「文字躍進式變色的設計」 、 「文字躍進式隱匿的設計」 、 「閱讀速度調節器的設計」 、 「限時自動翻頁的設計」 、 「聲控文字變色的設計」等設計方案及其設計原理,進而闡述計算機輔助閱讀訓練的優勢,即用形式活潑的閱讀材料激發學生的閱讀興趣,有效地控制學生的閱讀過程,實現閱讀的個性化,實現朗讀聲音的可視化。Based on the sound distinguishing characteristics of the tinnitus patients, an instrument of tinnitus treating which is combined with the acoustical theory is designed
根據耳鳴患者的辨聲特徵,結合掩蔽音治療耳鳴的聲學原理,完成了耳鳴治療儀的系統設計與實現。Acoustics. statistical methods for determining and verifying stated noise emission values of machinery and equipment. part 3 : simple transition method for stated values for batches of machines
聲學.對機械與設備規定噪聲發射值的測定和驗證的統計方法.第3部分:規定各批機械噪聲值的簡易方法Acoustics. statistical methods for determining and verifying stated noise emission values of machinery and equipment. part 1 : general considerations and definitions
聲學確定和檢驗機器設備規定的噪聲輻射值的統計學方法第一部分:概述與定義Descriptive statistic, factor analysis and anova are used to present the survey results which indicate that the six factors ( faculty and program, overall regarding schools, teaching resources, school services and reputation, cost, and interpersonal relationship ). the selection of departments in demographic variables has an important evaluation, and the reason for choosing ocit in mediator variables is also signification in this study
結果顯示影響學校評價及競爭力的因素有下列六項: :師資及學程因素、學校整體因素、教學資源因素、學校服務及聲譽因素、成本因素、人際因素;在人口統計變數中,只有不同的系別,對僑光的評價有所不同;中介變數中,只有當初選擇僑光的因素此項變數為顯著。分享友人