analysis by synthesis method 中文意思是什麼
analysis by synthesis method
解釋
合成分析法-
In order to obtain a high - quality speech codec, the phase information of speech should be included in codec. in this thesis, a method for quantizing the phase of sew ( slowly evolving waveform ) and reconstructing sew ’ s phase with cubic polynomial interpolation is given based on the perceptual weighting analysis - by - synthesis ( a - b - s ) vector quantizer for the phase spectrum in wi coder
本文基於感覺加權相位譜分析合成（ abs - analysis - by - synthesis ）矢量量化方法，給出了一種wi編碼器中慢漸變波形（ sew - slowlyevolvingwaveform ）的相位信息量化及合成端相位的三次多項式插值重建方法。 -
Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed
帶冠葉片不但能調頻，還可以利用葉冠之間的摩擦效應來耗散能量，達到減振的目的.帶冠葉片在離心力場中形成一整體，其整圈葉片振動特性不同於單個孤立葉片，需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性，提出了採用波傳播理論和模態綜合技術，結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的，並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應 -
In this text, the study was conducted to the diesel engine running - in on test bed by advanced oil analysis, surface analysis and characteristic parameters analysis of diesel engine during running - in. based on the spectrographic analysis, ferrographic analysis, particle counting, and scanning electronic microscope analysis, the extraction of lubricant analysis results have been completed by various methods as limits method, fuzzy synthesis analysis, tendency chart analysis. on the basis of information, issued from above analysis the quality comprehensive assessment model of diesel engine running - in has been established, used to assess the diesel engine running - in quality and engine test - bed running - in quality
本文以柴油機臺架磨合過程為研究范圍，採用先進的油液分析技術，表面分析技術和柴油機性能參數分析技術相結合的方法，在採集柴油機臺架磨合階段磨合潤滑油樣和相關信息，對柴油機臺架磨合潤滑油樣的光譜分析、鐵譜分析、顆粒計數分析等技術手段獲得的各種信息進行特徵提取，結合來自於分析鐵譜和掃描電鏡的特徵圖像信息，以及柴油機性能參數中的特徵信息，用界限值分析法、模糊綜合分析法和趨勢圖分析法等多種方法，並融合其他相關的特徵信息，建立柴油機臺架磨合質量綜合評價數學模型，綜合分析柴油機臺架磨合質量，研製開發了柴油機臺架磨合質量綜合評價系統。 -
That is, by the calculation of the anti - thermal deformation quality factor and synthetic quality factor of some typical primary mirror materials, the primary mirror material is selected scientifically and rationally. by the finite element method and the conception of structure rigidity quality factor, researching the relation between the light - weighted cell shape, the mirror thickness and mirror structural rigidity quality. by the force - thermal coupling analysis of the primary mirror assembly, the relations between the thickness, height of the flexible support reed and primary mirror synthesis surface figure error ( p - v ) have been researched
即，通過對常用主鏡材料的抗熱變形品質因數和綜合品質因數的定量分析，科學地完成了主鏡的選材；應用有限元分析方法，藉助于結構剛性品質因數的概念，研究了主鏡輕量化孔的形狀和主鏡厚度對鏡結構剛性品質的影響；通過對主鏡組件的力熱耦合分析，研究了主鏡柔性支撐簧片厚度與高度對主鏡面形的影響。 -
Finally, the paper classified the oil freight market index system into prior index group and posterior index group with cluster analysis method, furthermore, the prior index group and posterior index group were changed into 5 main factors with factor analysis method, which including prior synthesis factor, oil demand factor, oil price factor, invalid tonnage factor, tonnage supply factor. by using these 5 factors, we can analysis the oil freight market more clearly and effectively
最後，本文確立了油運費率市場指標體系，應用聚類分析方法將其劃分為先行指標組和滯后指標組，並進一步應用因子分析方法，將先行指標組和滯后指標組轉化為五個主成分因子：先行綜合因子、石油需求變化因子、石油價格變化因子、無效運力因子和運力供給因子，找出了影響油運費率市場變化的主要因素，應用這五個主成分因子可以對油運費率市場進行更加清楚、有效的分析。 -
It is introduced that the main factor of the lithium - ion battery characteristic of request, indicated the superior electronic properties is mainly related to the cathode material preparation. the paper investigated the synthesis process of tricobalt tetraoxide fine particles by the uniform sol - gel method, using a few analysis equipments test the particles
首先提出均勻凝膠沉澱法新方法，採用此新技術合成了超細co3o4 ，研究了各種因素對合成過程的影響，採用復配沉降劑，獲得了絮凝狀中間體，經測試證明絮凝狀中間體含有大量羥基。 -
Based on the basic principle of wavelet analysis, multi - resolution analysis of signal in atomic clock is made. the coefficients of wavelet transform for synthesis atomic time, which are weighed and averaged at different wavelet scales, are obtained. then according to reconstruction theorem, multi - resolution synthesis time scale can be reconstructed. since the signal of atomic clock has been analysed by multi - resolution, we can use wavelet variance at different scales to weight and average the coefficients. thus either the difference in stability of different clock or the varying characteristic of the same clock at the different scale are all considered. finaly, this method is checked by the measured data from national timing serve center of shaanxi astronomy observatory. it confirmed that this technique, which is simple and practicable, is a new method of multi - resolution. from this method, the common characteristic of different clocks can be extracted. the stability of multi - resolution synthesis atomic time scale is obviously superior to that of other methods
本文根據小波分析的基本原理，對原子鐘信號進行多解析度分解，將分解后的小波變換系數進行加權平均，得到不同小波尺度綜合原子時的加權平均小波變換系數，然後由小波變換的重構條件，反演綜合時間尺度.由於對原子鐘信號進行了小波分解，利用不同尺度的小波變換系數的小波方差進行加權平均，這樣既考慮不同原子鐘在穩定性方面的差異，又顧及同一臺原子鐘在不同小波尺度的變化特性.最後根據陜西天文臺國家授時中心的實測數據對這種方法進行了檢驗.表明這是一種全新的多解析度綜合方法，這種方法比較簡單而切實可行，它能提取各個原子鐘的共同特性，多解析度綜合時間尺度的平穩性明顯優于其他方法 -
By making use of pinch analysis of total site composites curves, the paper presented a method of total site energy synthesis and optimization for multi - processes and utility system
摘要對多個過程裝置與蒸汽動力系統採用全局溫焓分佈曲線的夾點分析法進行全局能量集成與綜合。 -
The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods
總結分析了實現高精度開關電流濾波器設計的各種實用方法，包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法，並對左分解法加以整理改進，提出一種更為簡潔的設計結構，通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。 -
For adapting to the need of industrialization and improving the properties of materials, the method of mechanical activation has introduced on the basis of traditional calcinations at high temperature. the stardard spinel limn204 is prepared by the mechanical activation - high temperature solid synthesis method. the thermodynamic property, the physical - chemistry performance and the producing techniques of. battery have been studied by means of thermogravimetry ( tg ), differential scanning calorimetry ( dsc ), x - ray diffraction ( xrd ), scanning electric microscopy ( sem ) as well as various electrochemical analysis methods. studies show that synthesis temperature, calcinations time, recipe of raw materials, heat treatment and particle size of products are main factors affecting the performances of limn204 cathode materials. with the increment of synthesis temperature and time, the structure and crystal of products are getting to perfect
隨著合成溫度和時間的增加，產物的結構和晶型越趨于完善，但在1100得到的產物有燒結和晶粒增大的現象，恆溫時間超過24h后對材料的性能影響不是很大； li mn比在0 . 95 1 . 05 2的條件下都可得到標準的尖晶石limn _ 2o _ 4 ，尤其當li mn比為1 . 05 2時，所合成的材料具有較好的電化學性能；通過兩段合成法制備的產物性能要比一段合成法法制備的產物性能好，而兩段間隔合成法比兩段連續合成法處理的材料性能更佳；顆粒的粒度隨著球磨時間的延長而減小，比表面昆明理工大學碩士學位論文摘要卻增大，粒度小且分佈范圍窄的材料有利於鏗離子的擴散。 -
At the same time, a modified calcination method was first put forward, that is, after the first calcination, additional annealing was enforced. by the use of the thermal analysis, xrd, partical size, specific surface area and electrochemical measurement, the structure and performance of the product were studied, and the synthesis process was optimized by comparing structure and performance with one another
通過優化合成工藝，發現ph值在2 3之間、 paa與金屬離子的摩爾比為1 . 4 ： 1 、燒結溫度為550 、燒結時間在10h左右時所得產物有良好的結構和電化學性能。 -
The three main conclusions are drawn : ( i ) by choosing 19 financial indexes, this paper makes a demonstrative analysis of the annals data of the listed companies in henan province in 2004 via factor analysis method, and finds out five principle factors which have important modifying effect on the evaluation of achievements of the listed companies. they are profit factor which represents the reward structure of the listed companies, the gained profit factor which represents the profitability of the companies, the debt service factor which represents solvency of the company, the management factor which represents the managed capacity of the companies and the development factor which represents the capacity for development. each principle factor multiplying its corresponding variance contribute rate get the synthesis score of each company respectively, consequently this paper makes an comprehensive evaluation of each company
主要得出以下三個結論: （一） 、選取19個財務指標，用因子分析法對2004年河南省上市公司年報數據進行實證分析，找出對上市公司業績評價有重要影響的五個主因子，分別是代表上市公司利潤構成的利潤因子、代表公司獲利能力的獲利因子、代表公司償債能力的償債因子、代表公司經營能力的經營因子和代表公司發展能力的發展因子，綜合各個主因子得分乘以他們相應的方差貢獻率，得到各個公司的綜合得分，從而對各個公司的優劣作出一個綜合評價。 -
Finally, a method of intelligent optimal design based on seismic damage performance and energy analysis which is realized by an improved genetics algorithm with discrete variables is put forward on the base of the performance - based seismic design developed in this paper and the synthesis - check design model
本文又在基於能量分析法的地震損傷性能控制設計的基礎上，採用「綜合? ?校核」的設計模式，提出了基於能量分析法的地震損傷性能的智能優化控制設計。 -
The method not only solves the problem of how to choose a suitable initial value that needed in solving nonlinear system of equations on analysis and synthesis of mechanism by iteration method, but also better thoroughly solves the problem of multi - solutions on the assembly configurations of mechanism and multi - scheme about the synthesis of mechanism
這不僅解決了迭代求解機構分析與綜合的非線性方程組時所需合適初始點的選取問題，而且較徹底地解決了機構裝配構形以及機構綜合多方案設計等多解問題。 -
This paper combines the experimental modal analysis technique with the techniques of analytic modal and component modal synthesis ( i. e. external superelement analysis ) provided by msc / nastran to obtain the modal parameters of complex structures. it mainly researches the process of external superelement analysis, required important sentences in msc / nastran and the method inputting modal test results. a t - kind structure and an aircraft mode, as examples, are researched through experimental modal analysis and component modal synthesis
本文的工作重點是將試驗模態分析技術與msc / nastran中的解析模態計算和部件模態綜合技術結合起來去解決工程實際問題，著重探索了msc / nastran中外部超單元分析的過程和重要語句，以及模態試驗數據的輸入等問題，並以一個t型結構和某型飛機全機模型為例做了部件模態綜合計算。 -
With the fast development of artificial intelligence ( ai ), automatic control, computer and communication techniques, many traffic flow modeling and analysis by synthesis method have been found. new theory and research achievement have been published in resent year. their applications in engineering have been shown its tremendous powers and huge potentials
隨著人工智慧、自動控制技術、計算機技術和通訊技術的迅速發展，各種交通模型和分析綜合方法層出不窮，新的理論和研究成果不斷出現，並已在實際工程應用中顯示出巨大的威力和發展潛力。 -
The hexagonal barexfe, 2. xo, ( re denote la ^ nd > sm and gd ) ultrafine powders with m - type structure were firstly synthesized by a novel technique - - - - - - sol - gel combustion synthesis method which combines sol - gel method with low temperature combustion synthesis method. based on theoretical analysis and experimental study, the effects of the composition of the gel, the different kinds of intermediate, strength of solution, the amount of complexing agent, the different kinds of anions, the adding of dispersant, auto - propagating combustion and the condition in heat treatment of the gel on crystal phase, particle size, morphology and magnetic properties of bare ^ fe ^ o, ultrafine powders were firstly investigated systematically to clarify the optimum forming conditions
本研究是在前人工作的基礎上，同時從制備方法和摻雜元素兩方面著手，以保證制備的粉體材料具有優異的性能，即首次利用溶膠?凝膠濕化學合成法和低溫燃燒合成法相結合的一種兼具二者優點的超細粉末新型合成技術? ?溶膠-凝膠燃燒合成法來完成稀土元素摻雜鋇鐵氧體bare _ xfe _ （ 12 - x ） o _ （ 19 ） （ re為la 、 nd 、 sm 、 gd ）超細粉末的制備。
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