second-by-second measurement 中文意思是什麼

second-by-second measurement 解釋
連續測量
  • second : adj 1 第二的；第二次的；二等（的）。2 次等的；較差的；劣於…的 （to）。3 〈美國〉較年輕的。4 另一...
  • by : adv 1 在側，在旁，在附近。2 （擱）在一邊，（放）到旁邊，（存）在一旁；收著。3 （由旁邊）經過，過...
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  1. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  2. In the second part, we studied the plastic porous probe for ammonia measurement, which was made by methyl methylacrylate. we selected methyl methylacryte ( mma ) as the monomer, diethylene glycol dimethacrylate ( dgdm ) as cross - linking agent and toluene as the inert solvent. the probe was prepared by a copolymerization technique

    第二部分為以甲基丙烯酸甲酯為單體的多孔塑料光纖傳感探頭的研究，在這一部分里，我們以甲基丙烯酸甲酯為單體，雙甲基丙烯酸一縮二乙二醇酯為交聯劑，以甲苯為致孔劑，採用交聯共聚技術制備氨多孔塑料光纖傳感探頭，並將ph熒光指示劑藻紅固定於共聚體中。
  3. It " s function is to receive laser signal and to sent out the electric signal ; the second is the monolithic processor system. this part function is to pick up the electric signal sent by ccd detector and to compute the digital signal to get the data where the laser beamed, then sent the data to pc computer ; the third part is the control interface for people to control whole measurement process

    本文介紹的桁架梁撓度實時檢測的電荷耦合（ ccd ）測量系統由ccd接收系統，單片機測量系統和pc機測量軟體三部分組成。該系統採用線陣ccd為傳感器，以8031為控制核心，在單片機系統和pc機軟體之間建立了可靠的通信，能在比較惡劣的條件下獲取、顯示、存儲、處理和比較桁架的撓度值。
  4. In the second section, a new method of simulation on frequency measurement receiver is put forward and the simulation model is illuminated by the example of superhetrodyne receiver. and the evaluating results based on the simulation are given

    其次，在上述信號環境模擬模型的基礎上，本文提出了一種新的測頻接收機模擬方法? ?基於脈沖描述字的測頻接收機模擬方法。
  5. By this, the error of observation will be reduced. the precision requirement of angles measurement is 0. 1 arc second. angles measurement can be substituted by translation measurement between images in detectors

    根據觀測精度的要求這一夾角的測量精度必須控制在0 . 1角秒內，夾角測量可轉化為探測器上圖像平移量測量。
  6. As to the tunnels of jinping hydroelectric power station in sicuan province, the thesis discusses how to reasonably consider the initial stress field when designing a large - scale tunnel with high initial stress and deep buried. first, by analyzing of the rock lab tests and discusses the feature of regional geomorphology. explains the production of initial stress field, analyze the initial stress of jinping hydroelectric power station ; second, using the fem, the paper creates the real model of region. according to the results of stress measurement point, by combining of ann and fem to decide the boundary condition, the paper calculates the initial stress field ; at last, the paper analyzes the influence of the initial stress field formed from different condition on the deformation and stress of the surrounding rock, and the main factor to influence the initial stress. on the basis of the former work, the author proposes some proposals, which will be helpful for studying and designing of the similar undergroun d engineering

    首先從巖體的應力?變形的特性入手，並結合工程區域的地形地貌特徵，對巖體初始地應力場的形成做出解釋，結合錦屏水電站初始地應力的現狀提出了將地應力場進行分帶；然後建立整個工程區的實體模型，在地質分析的基礎上，以工程區右半部分為代表，參照實測點的初始地應力值，採用了神經網路與有限元相結合的方法反演了該區域的初始地應力場；最後模擬隧洞的開挖，通過計算比較分析了初始地應力場對處于不同應力帶內的隧洞圍巖穩定性的影響，在此基礎上提出了作者的建議，力圖為該類工程的研究設計工作提供有益的幫助。
  7. According to the raman selection rule and the pl measurement, it is reasonable to evaluate the quality of galnp / algalnp mqw by analyzing the relative intensity ratio of a1p - lo / to. ( 4 ) a new modified random element isodisplacement ( mrei ) model is set up to calculate the dependence between the long - wavelength optical phonon frequencies and the composition of iii - v - type ab1 - xcx mixed crystals. the second neighbor force constants are still assumed to be a linear variation with the composition, but the two first neighbor force constants can be evaluated to be a negative exponent variation with the composition, using the overlapped repulsive potential of the ion crystal combination

    通過實驗我們找到了在這些結構參數上生產gainp algainpmqw的較理想的結果； （ 3 ）首次用喇曼（ raman ）散射方法研究了常溫下的gainp algainp多量子阱結構，除了指認出喇曼光譜中各光學聲子模外，還結合樣品光致發光譜的測量結果，分析發現喇曼光譜中alp - lo to的相對強度比可以在一定程度上評定晶體gainp algainpmqw的生長質量； （ 4 ）在修正的隨機元素等位移? mrei模型的基礎上建立了一個新模型，計算了ab _ （ 1 - x ） c _ x型?族半導體混晶的長波長光學聲子模頻率的組分變化關系。
  8. The procedure of the test is as follows : first, the piezoelectric stack has been examined to test the performance parameters of the piezoelectric material ; second, the 2 - x actuator has been functioned with different static voltage to test its capability ; last, function the 2 - x actuator with voltage with different frequencies to test its dynamic properties. all the output of the actuator has been measured by the laser vibration measurement

    首先對壓電堆進行試驗，驗證壓電材料的性能參數;再對推挽式雙x驅動器施加不同的靜電壓驅動它，驗證作動器的驅動能力，最後對推挽式雙x驅動器輸入不同頻率的電壓驅動，測量該驅動機構的動態特性，試驗均採用激光測試儀測量推挽式雙x驅動器的輸出特性。
  9. In the first part of this paper, the theory of laser range and dds technology was introduced, the factors of influencing range precision were also analysed. at the same time, put forward in the paper, with using the fpga embedded technology, the wideband and high resolution sin modulating signals can be generated easily, then analysed the noise of the dds ; in the second part, the theory of phase measurement based on fft was analysed. in the phase range system, by using the fft operation, the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true, also simulated and validated ; in last part, the improvement of the phase range system was brought forward, summarized and expected

    論文首先闡述了激光測距和調制信號源的基本原理，分析了影響測距精度的因素，指出應用dds技術可以實現寬帶、高精度的調制信號輸出，說明了引起dds輸出信號雜散的原因和解決的辦法;同時分析了應用fft運算實現信號相位提取的基本原理及設計方法，採用這種檢相技術，可以極大地提高測相精度與靈敏度;然後提出了基於fpga嵌入式系統的相位式激光測距機的整體設計，並就各部分進行了詳細的分析與設計;接著介紹了激光測距系統的外圍電路和基於quartusii集成軟體平臺的部分硬體電路的設計，並對其中的設計進行了模擬和驗證;最後總結提出了對系統今後的進一步改進和完善的思路。
  10. Second, the program of fem calculation is analyzed in details. based on the measurement of the test embankment, experiential formula of the calculation of the height & width problem caused by embankment deformation is proposed, and the corresponding fem formula is put forward

    在獲得一定的試驗段數據分析結果以後，筆者整理了由於地基變形引起的高度及寬度問題的計算預測經驗公式，並分析建立了有限元法計算該問題的計算思路及公式。
  11. In the second, this author is to introduce fuzzy information granulation which is based on coarse measurement, by utilizing whose superiority in the formation of human cognition, establish a fuzzy evaluation system in enterprises so as to form a supply chain and select their partners

    接著引入基於粗糙度量的模糊信息顆粒化理論，利用該理論對人的認知過程建模的優越性，建立了企業模糊評價系統，進行供應鏈構建和供應鏈合作夥伴選擇。
  12. Firstly, for normal high building, second - class measurement could meet the needs of sinking survey ; secondly, the location of survey should be based on the design drawing and choosing the first structure layer as a survey period ; thirdly, the arrangement of the results of sinking survey should be regular and accurate by a certain person, and if there is problem present, it should be solved or done away with in time ; finally, the results of building sinking survey should be fed back in time to survey, design and construction units as reference for the next project

    首先對一般的高層建築物來說，只需二等水準測量即可滿足沉降觀測的要求；其次，對于沉降觀測點及觀測的周期，通常要按照設計圖紙的要求布設觀測點，觀測的周期一般以一個結構層為一個觀測周期；第三，對沉降觀測結果的整理，要定期定人及時準確，發現問題要及時解決處理；最後，建築物沉降觀測的結果要及時反饋給勘察、設計和施工單位，為下一步的勘察、設計和施工提供可靠的參考依據。
  13. By controlling the stress value of under - lying layer less than tits structure yield stress value, a new design method to decrease composite ground settlement is suggested. and the composite foundation settlements of 12 buildings with the deep mixing cement piles is calculated, which is in good accord well with the measurement in field. second, considering the influence of well resistance, smear effect and structure breakage of thick soft clay, the equivalent calculation method is proposed

    首先，結合溫州地區深厚軟土，通過對室內常規試驗結果的分析，發現軟土具有較強的結構性，並給出室內固結壓縮曲線校正的新方法；提出了通過控制未打穿水泥攪拌樁復合地基下臥層的應力水平，使其小於土體結構屈服應力，以大幅度減小沉降的復合地基設計方法，並通過與12幢住宅樓未打穿水泥攪拌樁復合地基的實測沉降對比，得到了良好的驗證，進一步完善了結構性軟土壓縮變形的計算方法。
  14. The second chapter builds up indicator system of macroscopic finance risk according to standard, objectivity, sensitivity and operability, which includes macroscopic finance environment risk, bank default risk, foam economic risk, national debt risk and foreign capital impacting risk. next, it standardize indicator by adopting mapping, and applies hierarchy analytical process in determining weight. at last, it draws statistic measurement models by weighted average method

    其次，根據指標體系構建的規范性、客觀性、靈敏性和可操作性等原則，構建了由宏觀經濟環境風險、銀行壞賬風險、泡沫經濟風險、國債風險和外資沖擊型風險構成的宏觀金融風險評價指標體系；然後按照映射法對指標進行標準化處理，採用層次分析法確定各大類因素的權重，並用加權平均法得出宏觀金融風險的統計度量模型。
  15. This paper studies the ways to comfotmate the models of portfolio investment combi - nation, and demonstration analysis, divided into three parts. the first part : exordium. mainly introduces the risk of portfolio investment. the second part : brings forward several kinds of investment combination model, including the traditional markowitz model, multiobjective programming and fuzzy programming. the third part : goes along with the demonstration analysis of each kind of model basted on the shanghai stock market, at the same time, appraises the superiority and inferiority with the single - parameter measurement of tangible achievement. before then, most papers discussed the static models, this paper extends the static models to the dynamic models by the means of weighted moving average and bayes estimation

    本文研究了證券投資組合模型的構造方法及其實證分析，分三部分進行：第一部分，緒論，主要介紹證券投資的風險；第二部分，提出幾種投資組合模型，在傳統的馬柯維茨模型及線性規劃的基礎上，本文另外提出多目標規劃的其它解法，並把前人模糊規劃的理論應用到具體的建模中；第三部分，根據我國的滬市行情，對各種模型進行實證分析，並利用實績的單參數度量對各種模型的優劣性進行評價。
  16. The influence on the parameters of the measurement range and stability and its mutual relations are analyzed. it is pointed out that the key parameters are the weight of seismic mass and the critical voltage. dynamic response of closed - loop servo - system of the accelerometer and the method to adjust dynamic parameters are studied by the second - order method

    本文根據已有的加速度計模型，導出了慣性傳感器中敏感質量塊的各個運動方程，通過數學解析的方法，分析了各參數對量程和穩定性的影響以及它們內在的關系，指出關鍵參數是敏感質量和臨界偏壓；根據二階系統分析方法研究加速度計閉環伺服系統的動態響應和調整動態參數的手段，最後利用系統模擬工具matlab給出形象圖解和驗證。
  17. This design for high - speed data acquisition card with optical - electrical isolation on pci bus considers from these two respects : first, can solve the speed bottleneck problem in data transmission by fully utilizing high - speed transmission rate of pci bus ; second, can raise the electric isolation characteristics of the whole system by adding optical - electrical isolation circuit on the circuit board, and then raise the precision of measurement of the whole system

    本次設計的帶光電隔離的高速pci數據採集卡就是從這兩方面考慮的：一是可以充分利用pci總線高速傳輸，解決了數據傳輸中的速度瓶頸問題；二是電路板上帶光電隔離可以提高整個系統的電氣隔離特性，進而提高整個系統的測量精度。
  18. Second, when cfrc specimen is compressed, its capacity will change with the change of pressure, mostly because the relative dielectric constant changes with the change of pressure, so the compression sensibility of cfrc can also be reflected by capacity measurement, and the change of capacity with stress - strain is sensitive, and the data of measurement are stable

    Cfrc在受壓時其電容會隨壓力的變化而變化，主要是因為cfrc的相對介電常數隨壓力的變化而變化，所以通過電容的測量同樣可以反映cfrc的壓敏性，而且電容隨應力、應變的變化靈敏，測試數據穩定。
  19. For the engineers, the following sections details how clamping force is generated. they also relate to the second device : switchover to holding pressure by cavity pressure measurement

    下面的章節詳細介紹了鎖模力是怎樣產生的。同時會涉及到（本文要講的）第二個設備：通過型腔壓力測定轉換成保壓狀態的轉化器。
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