特有聲能通量 的英文怎麼說
中文拼音 [tèyǒushēngnéngtōngliáng]
特有聲能通量
英文
specific sound-energy flux-
Other than basic recording function, microlog includes the professional telephone recording technology to record down caller - id, dial - out string, date, time etc. the valuable information for user to search or track with. recording time can also extended up to hundreds hours by using cf card as storage media, thus apply the cf card on the pc, users may store, search and manage recordings files
Microlog除擁有麥克風錄音功能外，特別專精於電話通話錄音，除聲音外亦可記錄來話去話電話號碼、時間、日期等寶貴信息，並可提供長達數百小時的大容量計算機數據庫儲存與搜尋、管理機能。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。Barrier cracks cannot stop the extending of a fracture, and the strength of the sample is reduced by almost one magnitude because of the existing barrier cracks. there are great differences of ae distribution between specimens with non - penetrate crack and specimens with penetrate crack. as for penetrate crack, ae occurs near the two end of the crack, and for non - penetrate crack, crack, ae occurs near the two end of the crack, and for non - penetrate crack, ae occurs near the front edge of crack, which can be explained well by the theory of 3 - d fracture ; ae distribution near the outer part of collinear crack is similar with that of the end of penetrate crack, and inner part of collinear cracks will run - through with high loads
關于預制裂紋系對巖石破裂的影響，集中討論了：空障礙體構造不能阻止主裂紋的擴展，反而會使巖石的破裂強度降低近一個量級；由於構造的不同，非穿透切口樣品和穿透切口樣品的聲發射空間分佈特點有本質區別，穿透切口樣品的微破裂在切口兩端發育，而非穿透切口樣品的微破裂在切口兩端之間切口前緣處發育，這用三維破裂理論可以很好地解釋；含共線構造的巖石，裂紋外端的聲發射分佈與單裂紋構造中裂紋端部的聲發射分佈相似，裂紋內端聲發射有密集分佈，在應力達到一定水平時，內端部發生錯斷，而不是貫通。In addition, the author puts forward that the eggs could be recognized based on the difference in the frequencies of their prompted sounds. because the eggs " prompted sounds are lied on low frequency bands, the microphone and sound amplifier that have excellent duration response should be used. the output signal from the sound amplifier is transferred to data signal by a / d card before it is put into computer
蛋品激勵出的聲音主要集中在低頻段，因此選擇在低頻段有好的頻率響應特性的麥克風和放大電路；放大輸出信號通過a / d採集板變換成相應的電壓數值信號送入計算機，對離散的信號數據進行傅立葉變換得到它的頻譜圖和各頻段能量分布圖；而後將能量分佈特徵數據作為神經網路的輸入值，這樣，好蛋和破損蛋的模型就建立起來。This paper presented m - band wavelet - based watershed image segmentation method for medical digital image. the method was based on a multiresolution application of a m - band wavelet and watershed transformation, followed by a wavelet coefficient based energy computation and region merging procedure. the results showed that the method was useful for the reduction of over - segmentation and can be applied to the segmentation of digital images
本文針對醫學數字圖像數據量大和噪聲情況復雜的特點，結合多尺度分析理論，通過多小波圖像分解、能量計算、分水嶺變換和區域融合等步驟，克服了分水嶺變換嚴重的過分割問題，實現了有意義的區域分割。Portable intellective transfer facility replaces the ordinary gravity transfusion by using the mini - electromotor, so it can accurately control the speed and quantity of the transfusion. by supervising the transfusion process, when abnormal cases happened, such as a pipeline jam or danger air bubbles, it can rapidly shut down transfusion way automatically in order to prevent the accidents caused by transfusion. the facility could stop automatically when the transfusion end up and reminds patient or paramedic by sound and lamplight
便攜式智能輸液設備以微型電機代替普通的重力輸液，能夠精確控制輸液速度和輸液量;對輸液過程進行監測，當出現如管路堵塞、有危險氣泡等異常情況時，能夠迅速地自動關斷輸液通路，防止輸液事故的發生;輸液結束后自動停機，並通過聲光提醒病人或護理人員;具有攜帶方便，操作簡單等特點。Conventional detector ( single - user matched filter ) distinguishes each user by the crosscorrelation of their spread - spectrum codes. in practice, however, its performance is much deteriorated due to the existence of noise in channel and strong multi - access interference, i. e. near for effect. a new method using independent component analysis is proposed in this paper. the - received energy of signals is controlled effectively, thus the near - far effect is overcome as much as possible ; moreover, the effect that noise imposed on the detector is mostly reduced. simulations verify the effectiveness of this method
傳統檢測器（單用戶匹配濾波）利用擴頻碼之間的互相關特性來區分各用戶信號.而在實際應用中，通道噪聲和近距離用戶對遠距離用戶的強多址干擾即遠近效應，使得接收機的性能受到很大影響.本文將獨立分量分析法引入傳統接收機，有效控制接收信號的能量，從而極大地提高了接收機的抗遠近性能，同時噪聲的影響被盡可能消除.模擬結果表明了該方法的有效性和可行性First of all, by establishing the observation model of complex harmonic signal and complex linear chirp signal respectively under the co - jamming of additive and multiply noise, the paper constructed cyclic moment detectors of different orders, deduced snr expression of the detector through theoretic analysis, discussed the relation of detector performance and noise statistical characteristic. the curve of detection performance is obtained through monte carlo simulation test, proving the related conclusion derived
首先，論文分別以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，構造了基於不同階次的循環矩檢測統計量，從理論上推導出了檢測器的信噪比表達式，分析了檢測器性能與噪聲統計特性的關系，通過monte - carlo模擬試驗得到了檢測性能的曲線，驗證了推導的有關結論。And then, adopting the same model, cyclic moment estimation statistic of different orders are constructed respectively, large sample variance expressions of the estimator through theoretic analysis are derived, as well as the constraint relation of estimator performance and noise statistical characteristic. the curve of estimation performance is obtained through monte carlo simulation test, which proves the related conclusion derived
然後，論文同樣以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，分別構造了基於不同階次的循環矩估計量，從理論上推導出了估計量的大樣本方差表達式，分析了估計量性能與噪聲統計特性的約束關系，通過monte - carlo模擬試驗得到了估計性能的曲線，驗證了推導的有關結論。In order to meet the requirements of domestic speedily developing air - conditioner, and purifying industries and reducing the noise pollution of fan, referred the mass of advanced sample fans of abroad, designed and turned out the dkw series low noise centrifugal fan successfully it is an energy - saving centrifugal fan, at present, this series has the lowest noise and the least vibrating at the domestic market, it has the advanced level of 90 ' s
Dkw系列低噪聲離心風機是我廠為適應我國日益發展的空調、凈化工業及降低風機噪聲污染，在參考國內外大量先進樣機型離心通風機，該系列風機是具有噪聲低，振動小、能耗低等特點，具有九十年代的先進水平。In cellular envirorunents, because of the influence of several adverse factors, such as muitipath, non - line - of sight propagation, noise, interference and channel frequency characteristics, radio statistics measuremenis like tdoa, toa and aoa related to mobile position, the performance of location algorithms mny be significantly degraded and the position estimation of ms is inevitably biased
在蜂窩網路環境中，由於受多徑、非視距傳播、噪聲、干擾和通道頻率特性等多種不利因素的綜合影響，使tdoa 、 toa 、 aoa等與移動臺位置有關的電波特徵測量值不可避免地出現較大誤差，從而使各種定位演算法的性能顯著下降，造成移動臺位置估計出現較大偏差。An economical and effective new technology using sound card is proposed in this paper. it collects the leakage current from high voltage insulator, and then deals with the noise elimination using wavelet analysis. compared with the traditional signal analyzing method, the wavelet analyzing technology not only can distill the leakage current signal from the noise precisely, but also can distinguish the low quality character of leakage current signal. this method plays an important role to the device in early fault diagnosis, and can improve the accuracy of measurement and fault diagnosis in the application
介紹了一種利用電腦的聲卡對高壓絕緣子的泄漏電流進行採集的經濟有效的新技術，並通過小波分析技術對所獲得的信號進行消噪處理.與傳統的信號分析方法相比，小波分析技術不僅能從噪聲中準確提取待測泄漏電流信號，同時又可真實復現泄漏電流信號中的劣化特徵，這對設備的早期故障診斷具有重要意義.顯著提高了測量的準確度，增強了設備故障診斷的準確性分享友人