監測參變數 的英文怎麼說
中文拼音 [jiāncèshēnbiànshǔ]
監測參變數
英文
monitoring parameter-
And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象,對于譜形相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。Due to complex and varied geological conditions for 4 headrace tunnels at zipingpu project, real time monitoring technique was used during informatization construction according to new austrian tunneling method, system observation for typical sections was conducted by following in - situ construction, based on which inverse analysis for rock mechanics parameters was conducted
針對紫坪鋪工程4條引水發電隧洞復雜多變的地質條件,採用新奧法隧洞信息化施工中倡導的實時動態監測技術,跟蹤現場施工進行了典型斷面的系統觀測,在此基礎上進行了圍巖宏觀力學參數的反分析研究。The other research purpose is to discover characteristic information and reliable methods of reflecting spinal cord damage. due to typical damage indicators, amplitude and latent period, have bugs such as limited information and weak stabilities, this project recommends applying time - frequency analysis to monitoring spinal cord function. through analysing and comparing typical signal with stft and cwt, it is proved indicators under time - frequency distribution can be better in reflecting signal changes, espcially the wavelet transformation
針對目前ep監測中判定脊髓損傷的指標(波幅和潛伏期)存在信息量相對較小、穩定性較差的缺陷,本課題提出利用時頻分析技術對術中脊髓功能監護進行研究,通過短時傅立葉變換和小波變換分析和比較典型信號的時頻分佈,證明時頻特徵參數能更有效的提取信號的變化信息。The department of ecology and biodiversity of the university of hong kong has been appointed to carry out the 2001 - 02 programme. the main aspects of monitoring include sampling of marine benthic animals, analysing bird population data, habitat extent and conditions. cross reference will be made to environmental data such as mudflat sedimentation, water quality, sediment quality and land use changes
香港大學的生態學及生物多樣化學系,獲委派進行二零零一至零二年度的計劃,主要監測范圍包括抽樣調查海洋底棲動物、分析鳥類種群數據、生境分佈及狀況;亦會參考相關的環境數據,例如泥灘的沉積情況、水質、沉積物的質素、土地用途改變等,作為對照。By analysis the test data, the law of temperature variation in day and temperature variation in month was got ; moreover, the probability statistics mode of day temperature difference with its statistic parameter was got too. at the same time, the year temperature difference data of walls and roofs were obtained. through the field tests, the law of thermal cracks, displacement and stress in cshbb was summarized
對杭州市某一小砌塊試點建築進行了為期近一年的現場跟蹤監測研究,給出了小砌塊建築的日溫度變化規律和月溫度變化規律,並由此得到了小砌塊建築的日溫差概率統計分佈模式及相應的統計參數和小砌塊建築不同方位的墻體和屋面的年溫差數據;通過現場跟蹤監測,也得到了小砌塊建築的裂縫發展規律及位移和應力的變化規律。On the basis of the theory of fractal geometry, the fractal dimension characters of ae signal at different tool wear states were analyzed, an algorithm was provided to decide the scale range which is necessary to calculate the dimension of non - fully - fractal form. the experiments showed that the fractal dimension of ae signal is slightly effected by the changes of cutting parameters ; the variance of the fractal dimensions, which reflects the geometric characters of ae signals, has the same tendency as that of the flank wear, the monitoring system, which takes the fractal dimension of the ae signal as the feature, can identify the different tool wear states more correctly under different cutting conditions
以分形幾何理論為基礎,對刀具不同磨損階段聲發射信號的分形特徵進行分析.提出了計算非完全分形體信號波形的關聯維數時尺度范圍的確定方法,分析了聲發射信號在刀具磨損過程中分形維數的變化特性.刀具磨損切削實驗數據表明,聲發射信號的分形維數受切削參數變化影響較小;分形維數反映了聲發射信號的幾何特徵,其大小能較好地反映刀具的不同磨損狀態.實驗結果表明,該方法能正確地實時在線監測刀具的不同磨損狀態Combined with the real example of monitoring pressure on the supporting system in the long span underground space of dk7 + 692 section at jiao - xin line of chongqing light railway, it is set forth the methods about choosing the support system and its parameter, digging methods of underground space, measuring and testing methods for the stress of the support system ; the testing results and variation pattern were analyzed for the stress of the initial supporting i - steel axial stress of bolt, stress of shot - concrete, supporting pressure of temporary i - steel and stress of steel of the second lining, then, the reason for deformation of the support system induced by sharp increase of i - steel was determined
摘要結合重慶市輕軌較新線大坪車站大跨度地下空間dk7 + 692斷面施工支護體應力監測的工程實例,闡述了該大跨度地下空間支護結構的參數選擇、地下空間的開挖方法、支護體結構的應力量測方法及測試手段;分析了支護體初期支護工字鋼拱應力、錨桿軸力、噴射混凝土內應力、臨時工字鋼支撐應力、二次襯砌鋼筋應力等測試結果和變化規律;確定了工字鋼拱應力急劇增大而可能引起支護體系失穩的原因。The fraction of green vegetation, the ratio of vegetation occupying a unit area, is a very important parameter in development of climatic and ecological models
作為重要的生態氣候參數,植被覆蓋率是許多全球及區域變化監測模型中所需的重要信息。There are five parameters need to be measured. there are five channels for input : the displacement of casting - roller, the rotate speed of casting - roller, the pressure of casting and rolling, the casting temperature and the water - speed of cooling water. they are measured by raster, photoelectric coder, strain pressure sensor, thermocouple and turboflowmeter
系統需要進行監測的參數有五個,即有五路輸入信號:鑄輥位移、鑄輥轉速、鑄軋壓力、澆鑄溫度、冷卻水流速,分別採用光柵、光電編碼器、應變式壓力傳感器、熱電偶和渦輪流量計作為檢測元件。According to the impact of higher voltage harmonic, an algorithm of harmonic analysis based on anti - alias fourier transform is discussed. compared with the traditional way, fft harmonic analysis, the algorithm increases the monitoring precision and the veracity
針對系統電壓高次諧波對監測結果的影響問題,提出了基於抗混疊傅立葉變換( faft )的諧波分析法,獲得有利於故障診斷的監測參數。The improving genetic algorithm, carrying on fortran language, is used in suibuya water conservancy hub. based on the ansys language procedure calculation, the stress parameter vibration of the underground carvera accords with the truth and the answer is correct
改進遺傳演算法採用fortran語言進行程序開發編程應用於水布埡水利樞紐位移變形監測參數反演中,反演所得的數據用ansys編程進行模擬模擬分析。The water quality respond relation of input - output measurements are established by systematic theory in this paper. according to the peculiarity of hydrology and the necessity of water quality inverse problem the multi - parameter inverse problem model based on ordinary differential equation is developed. the existence and uniqueness of the solution of the ordinary differential equation about two parameters or multi - parameter are to be proved. the unstability depending on errors between monitoring data and interpolation approximate data are analyzed and demonstrated. cubic spline interpolation function, the least two multiply and positive rule method are conjoined for obtained solution of multi - parameter. the results from this algorithm indicats its efficient to the multi - parameter identification in water quality modeling
本文應用系統理論,建立了水質多參數輸入輸出之間的響應關系;根據河流水文水質變化特點和參數反問題的需求,建立了水質常微分方程多參數反問題模型.根據常微分方程參數反問題的數學理論,作者給出了兩參數和多參數水質常微分方程反問題的解的存在性、唯一性的理論證明過程和結論;還針對水質現有監測資料的測驗誤差和插值近似計算誤差造成參數反問題的不穩定性,將三次樣條插值函數、超定方程最小二乘法和正則化演算法有機地結合使用,成功地給出了水質參數反問題的穩定化演算法.最後給出了應用計算結果We notice that changes of structural parameter due to damage must change dynamic characteristic of structure. it may be possible to detect and identify structural damage by detecting the change of dynamic characteristic and detect structural damage on the whole even damage in area beyond of reach
我們注意到,損傷引起的結構參數的變化必然會改變結構的動力特性,自然可以用監測動力特性的改變來檢測與識別結構的損傷,而且可以從整體意義上檢測結構的損傷,包括處于無法到達位置的損傷。By face failure and ground subsidence investigation and in - suit monitoring analysis in some lots of shenzhen metro phase line, especially of lot 3a in which two large ground landlides have occurred in construction, the reasons of ground subsidence are expatiated respectively from three aspects, including the characters of the physical mechanical parameters of stratum above tunnel, the monitoring analysis of stratum deformation and contruction technics causation
通過對深圳地鐵期工程土建施工中全線部分暗挖標段出現的工作面失穩、地表塌陷工程實踐和現場監測結果分析,特別著重對連續2次出現地表塌陷的3a標暗挖隧道研究,從隧道上覆地層物理力學性質參數、地層變形監測分析及施工工藝原因3方面闡述了地表塌陷的原因。According to the analyses of the research results about the feasibility of 4 - d seismic and the successful 4 - d seismic cases of foreign companies, the author put forward the suggestions for 4 - d seismic pilot area selection ; briefly analyzed the influential function of producing way on the seismic response ; utilized theory calculation, coring data analyses, and reservoir numerical simulation to define the fluid substitution effects on the p - wave velocity. through long time water driven to the reservoir, some of the properties and the log curves have changed, the author tried to find the variation rule of the reservoir and its effects on seismic velocity. the " blind point " in 4 - d seismic feasibility study both in china and overseas was found, that is the lack of consideration of the influence of physical property variation by long time water driven on the seismic response
在深入分析國外四維地震可行性研究成果和成功實例的基礎上,提出了有利於水驅四維地震成功的工區優選條件;簡要剖析了各種開采方式及其對地震特性的影響;利用理論計算、巖心分析、油藏數值模擬三種方法確定了流體替代對縱波速度的影響;通過對長期水驅造成的物性參數、測井曲線以及油藏溫度和壓力變化規律的總結,分析了這些變化對地震速度的影響,指出了目前國內外水驅四維地震可行性研究中存在的盲區?沒有充分考慮長期注水造成的物性、溫度和壓力變化對地震響應的影響,完善了水驅四維地震可行性研究的內容;在考慮了這些變化因素后,高29斷塊水驅四維地震可行性研究結果表明:四維地震監測注水前沿可能要比監測油藏變化容易的多;以四維地震巖石物理可行性研究結果為基礎,提出了五個有助於突出四維地震造成的微小差異的途徑,為今後水驅四維地震研究指明了方向。Consequencely, the analysis and assessment system of the operating state of the concrete dam was developed under the ansys development environment, and the back - analysis and the prediction of the parameters of the dam system have been done according to the operating observed data. the research work involves several aspects as follows : 1 ) a back - analysis model including the prior information and a predictive model of nonlinear time series were established ; 2 ) the analysis and assessment system of the operating state of the concrete dam was developed under the ansys development environment, in which the analysis module of the loading effects, the back - analysis module, the forecasting module of the physical parameters and the assessment module of the operating state were contained ; 3 ) according to the operating observed data, the operating state of the dam was assessed and predicted with the analysis system of the operating state, the results suggested that the dam is in basically normal operation at present
具體工作有以下幾方面: 1 )收集整理漫灣水電站大壩運行監測資料,並對其進行了系統分析,從觀測資料本身直觀的分析了大壩的運行狀況; 2 )總結位移反分析的理論及方法,建立了考慮先驗信息多介質位移反分析模型,基於神經網路非線性映射功能,建立了神經網路時間序列預測模型; 3 )以ansys軟體為平臺,開發了漫灣水電站砼重力壩運行狀態評價模塊,結合荷載效應分析、參數反演分析、參數預測分析三個模塊組成漫灣水電站砼重力壩運行狀態分析系統;實現了對漫灣水電站運行狀態的動態「反演-預測」分析; 4 )利用漫灣水電站砼重力壩運行狀態分析系統,在漫灣大壩實測資料分析、大壩砼特性參數反分析、大壩砼彈性模量衰變規律及預測分析的基礎上,系統的分析並預測了大壩運行狀態。In the paper, the esd stressing tests for n - channel mosfets are performed, and main electrical parameters, 1 / f noise spectrum and its time series are monitored during the test. it is found that the 1 / f noise changes much more sensitive to the esd latent damage than the electrical parameters, at the same time, similarity coefficient also changes more quickly especially for smaller w / l devices
通過對mos器件的靜電應力試驗,同時監測試驗過程中器件的電參數、 1 / f噪聲功率譜密度以及由1 / f噪聲的時間序列提取的相似系數變化,發現1 / f噪聲對于靜電應力引起的損傷要比電參數的變化敏感得多。The larson - miller method and the superheater wall temperature computation model brought forward by soviet criterion are adopted to calculate the life loss caused by creep. and a simplification formula is put forward to apply in the on - line life inspection system
本文採用拉森米勒參數法,結合前蘇聯1973年熱力計算標準中的過熱器壁溫計算模型,對前期蠕變壽命損耗進行了計算;並提出簡化方法,用於在線壽命監測系統中。The monitoring system of remote electric quantity based on pstn obtains the electrical parameters of transformer by the data acquisition module, host computer dials every monitored station by roll polling. inferior processor transmits datas to the computer in superior monitoring center through pstn for storage and processing, to provide the analysis and statistics for the supervisor section. the system is simple and cheap, and it will have a good prospect of application in electrical system
基於pstn的遠程電量監控系統通過數據採集模塊對變壓器的電參數進行採集,主機通過「輪循」的方式,依次撥通每一個監測站點,下位機將檢測到的數據通過pstn公用電話網送到上層監控中心的計算機系統進行存儲和處理,以提供主管部門的分析和統計之用。The reliable detection of this transition zone depends on the fact that if all drilling parameters remain relatively constant. the following indicators are noted
對這種變化層位的監測,主要取決于所有的鉆井參數是否能維持相對穩定的常數,為此對下列顯示要引起注意。分享友人