simulation sources 中文意思是什麼
-
The fifth chapter sum up the article and view the work. the simulation results indicate : ( 1 ) exchanging of sea - air and force of dynamical and thermodynamic processes is very important to bring and maintain sea surface wind. shf is mostly energy sources and lhf is negative effect in some area
模擬結果充分表明： （ 1 ）感熱和潛熱的海氣交換和動量交換（摩擦作用）對于海面風的發展和維持起著重要作用，潛熱加熱是海面風中最主要的能源，感熱通量在一武漢理工大學碩士學位論文定區域對海面風風場有負面影響。 -
A dynamic simulation method for maturity of organic matter in superposed rocks of multiple thermal sources
多熱源疊加的巖層有機質成熟度動態模擬方法 -
The original infomax is only applied in the instantaneous mixture and in the single channel blind deconvolution. this thesis applies the idea to blind sources separation in multiple channel convolutive mixture. through simulation, we can show that the algorithm has good performance
Infomax演算法適用於瞬時混合情況下的盲分離和單通道盲解卷積問題，本文將infomax演算法推廣到多通道卷積混合，對演算法進行模擬，取得了不錯的效果。 -
Chapter 4 time - dependent computational simulation of the response of cable - suspension feed system in gusty wind based on the time - independent structure finite element method, and with consideration of the movement laws of cabin, a 3 - d time - dependent structure finite element model formulated by a new method named iss method ( instantaneous structure supposition method ) to deal with the vibration response of cable - suspension feed system in gusty wind is presented. in the model, all sources of geometric non - linearity, cable sag and changes of cable geometry due to large displacement, are fully considered
基於時不變結構的有限單元法，在綜合考慮饋源艙運動規律的基礎上，提出了時變系統的瞬時結構假定法，通過將懸索離散為索桿單元，建立了系統的時變有限元模型，該模型充分考慮了懸索的垂度和大變形等幾何非線性因素，應用ne 。 -
At present, surge control method for centrifugal compressor being used is commonly by least - flow method. it can ’ t make compressor working within operating condition area, sometimes starts the surge control system earlier, which will waste energy sources and depress economy benefit. even, its control system commonly consists of simulation instrument, can ’ t modify the changing surge curve of compressor in time and can ’ t control nonlinear surge curve preferably
目前，在用的離心壓縮機的防喘振方法一般採用最小流量法，它不能充分使壓縮機工作在其工況區，往往過早起動防喘振系統，浪費了能源，降低了經濟效益。且控制系統一般採用模擬儀表構成，在壓縮機的喘振線發生變化時不能及時修正，對非線性的喘振線不能較好的實施控制。 -
When studying the network performance, flow control and resource provisioning of communication networks, traffic model plays a very important role. the recent studies show that the date network traffic is self - similar, so the markovian model, which describes telephone networks accurately, is not suitable for date networks. the self - similarity of the network traffic has severe impact on flow control and queuing analysis in date networks, therefore it has received significant attention. in this paper, g m 1 queuing model is used to analyze the queuing performance of generic variable length packet networks for the first time. the self - similar traffic is generated by multiplexing a large set of independent pareto heavy - tailed interarrival on off sources. the simulation results show that the heavy - tailed traffic results in queuing performance deterioration for variable length packet networks, which is in accordance with the analytical results for atm switches
業務量的自相似特徵顯著影響網路的流量控制與排隊分析，已經引起人們的極大重視。採用g m 1排隊模型對分組長度可變的網路的排隊性能進行了分析和模擬，其中自相似業務量是通過疊加大量獨立的到達間隔為pareto重尾分佈的on off源來生成的。模擬結果表明，自相似業務量導致網路的排隊性能劣化，這與有關文獻對atm交換的分析結果一致。 -
Simulation of two point sources interference phenomenon based on matlab
的雙點光源干涉現象的模擬 -
At some situation, some nodes pressure and supply of all water - supply sources are measured in xi ' ning ( resistance parameter of all pipes are known ). by using the pressure of the experiment and optimal measure points, the state simulation is done respectively to get all nodes " pressure. the comparison of the estimation results express that the optimal measure points is more representative than experiment one
利用簡約梯度優化法求解給水管網狀態估計的最小二乘數學模型，實測某一工況下西寧市配水管網部分節點水壓h _ 0 、各水源供水量（管段摩阻已知）分別用優化選擇的測壓點水壓和按經驗選擇的測壓點水壓估計所有節點的水壓，對西寧市配水管網進行了狀態估計。 -
Therefore, this paper studies three kindsvalves such like bufferfly valve, brake valve and ball valve, with the numerical simulation method by cfx which is often used to simulate the fluid. by the simulation of three kinds of valves, we can kown dynamic characteristic of them. in this paper, i not only simulate for three kinds of valves, but also analyse cause of flow - noise and give respectively mathematical model of main noise sources in piping system such as pupm and valve
本文通過cfx軟體，用數值模擬的方法，對海水管路系統中常見的三種閥門（蝶閥、閘閥、球閥）流動特性及噪聲進行了模擬分析，闡明閥門噪聲產生的機理，建立了泵和閥門等噪聲源的數學模型，並對管路系統中涉及到的邊界條件做了適當的處理，分析了閥門下游的渦聲。 -
By introducing a parameter into the three sources evaporation module of xin ' anjiang model, the whole layers nonlinearity method and the middle layer nonlinearity method were applied to evaporation computation to study the effect of spatial soil evaporation variability on runoff simulation
模擬結果說明模型參數的空間不均勻性對水文過程模擬的影響是很大的。將新安江蒸發模型引入一個新的參數，採用整層非線性方案和中層採用非線性方案來分析土壤蒸發不均勻性對模擬水文過程的影響。 -
Some valuable conclusions are given by simulation experiments for a kind of anti - radiation - missile attacking dual sources. 6. the method for prs counteracting interference of two noise fm jammers is presented
對于兩個頻基本重疊的窄帶瞄準式噪聲調頻干擾源，提出了prs跟蹤兩個干擾源中大功率源的方法。 -
Adopting the track irregularity to the actuator sources of system, then simulate the track irregularity and check the validity of simulation, at the same time compute the dynamical response and evaluate the statistic rules of wan zhou yangtze river bridge in the condition of high speed vehicles
採用軌道不平順作為了系統的激勵源，模擬出了軌道不平順年並檢驗了模擬的正確性，評價了萬州長江大橋在車輛高速行駛狀態下的動力響應和統計規律。 -
The research and actions taken by the government in this aspect in recent years include a study on regional air quality jointly conducted by the hong kong epd and the guangdong environmental protection bureau during 1999 to 2002. the results include an emissions inventory of the pearl river delta ( prd ) with 1997 as the base year to determine the locations of pollution sources and their amount of emissions. computer simulation was further employed to figure out the distribution of pollution and to calculate quantifiable options for controlling pollution sources
近年政府在這方面的研究工作包括一九九九至二二年間環保署聯同廣東省環保局進行的區域空氣質素研究，結果包括了一套以一九九七年為基本年的珠三角排放清單，確定污染源的位置及排量；再用電腦模擬做出污染分佈的情況，計算出控制污染源的量化方案。 -
Abstract : a noise model for the analog correlator used in the ultra wideband receivers is proposed due to lack of simulation capability on noise performance of the correlator in current eda tools. the analog correlator circuit is divided into several parts to calculate the equivalent noise sources respectively. the ideal impulse generators, instead of the noise sources, are then applied to obtain the time varying transfer functions. fourier transforms are carried out to explore the relationship between the noise input and output in frequency domain for each part. then the symmetrical noise sources are grouped together and the periodicity of the circuit is utilized to further simplify the model. this model can be used to evaluate noise performance of the correlator
文摘:給出了分析模擬相關器的噪聲模型.將相關器分成不同的幾個子模塊后，對各模塊分別計算等效噪聲源.然後用理想脈沖源代替噪聲源計算電路的時變傳輸函數，接著用傅里葉變換計算輸入輸出的頻域關系.利用電路的對稱結構合併對稱的子模塊可以進一步簡化模型.該模型可以用來估計相關器的噪聲性能 -
Use the magnetic vector for the observation information, the paper estimate the location and rate of the satellite, analysis of simulation results and the sources of error. to further enhance navigation accuracy, the paper study the unscented kalman filter, compare with the extend kalman filter. in the same initial conditions of the extend kalman filter, we do the simulation
其次，基於磁環境模擬系統的測量數據，本文研究了擴展卡爾曼濾波演算法，建立了衛星的運動學和動力學方程，以地磁場矢量為觀測信息，對衛星位置速度進行了估計，並分析了模擬結果及誤差來源，為了進一步提高導航精度，本文又研究了unscented卡爾曼濾波演算法，給出了原理及步驟，並與擴展卡爾曼濾波進行了比較分析。 -
The simulation model built can chose different traffic sources and change the switch structure easily. there are different assemble algorithms used in the obs edge node such as fap, fbl, mbmap and aap. the influence of obs simulation system to traffic flow is figured out
在搭建了能夠靈活的採用各種業務模型和改變自身結構的模擬平臺后，研究了不同的匯聚演算法、緩存結構和obs交換結構下的obs交換系統對通過的業務流特性的影響。 -
( 4 ) after the rationality of numerical simulation has been testified, going along a series of numerical simulation and performance research. firstly, the thermal superposition principle, based on adiabatic heat transfer coefficient and superposition kernel function, is put forward for the research of discrete heat sources ’ temperature field and thermal conjunction effects secondly, decreasing thermal spreading resistance is good for improving the heat transfer performance, and several methods are discussed
第一、在熱疊加原則理論基礎上，利用數值模擬方法研究了固態組件的溫度場和多個分散熱源在熱擴展體上的熱耦合效應，而且證明了強迫對流情況下熱疊加原理形成的溫度場和系統模擬時的溫度場計算結果非常吻合;第二、針對固態組件里集中熱源的特點，對擴展熱阻進行了研究，從理論上探討了減小擴展熱阻改善散熱性能的方法。 -
According to principles of software engineering, radioactive sources calculation and the working process of rms simulation are realized under the real time simulation support system, asca
在實時模擬支撐系統asca下，按照軟體工程學的原則，實現對放射源的模擬計算和對輻射監測系統工作過程的模擬。 -
Second, several feasible methods with which to incorporate the microwave devices into the fdtd simulation of microwave active circuits are discussed. direct implementation places the circuit element on the edge of a fdtd cell as a two - terminal element in the device region. another implementation is to place effective electric currents, or equivalently, current sources, voltage sources and effective magnetic current sources
接著研究了如何把微波器件加入微波電路中進行fdtd模擬的幾種方法，其中一種方法是把微波器件作為一個二埠元件放置在一個網格的邊上直接進行fdtd運算，另外一種方法是在有微波器件的區域使用有效的電流來代替微波器件，或者等效的源，包括等效電流源，等效電壓源和等效磁流源。 -
Based on the facts in our country, this paper raised that the method of probability should be used in electrical tractor system. and at the same time, the main problems and availableln of this method. based on matlab, the model of probabilistic method and monte carlo simulation in superposition multi - harmonics sources are compared
與此同時，探討了目前國內外對該問題處理所使用的方法的局限性和缺陷，針對本國的電牽引系統的實際情況，提出了在電牽引系統的多諧波疊加中使用基於中心極限定理的概率分析方法，指出針對高次諧波運用該方法的可靠性和對低次諧波不能有效模擬的原因所在。
分享友人