等時線 的英文怎麼說
中文拼音 [děngshíxiàn]
等時線
英文
hour-out line-
Linear estimation of the number of zeros of abelian integrals for cubic isochronous centers
對某些三維等時中心abel積分零點個數的線形估計Standard practice for determination of adsorptive capacity of activated carbon by a micro - isotherm technique for adsorbates at ppb concentrations
用ppb濃縮時吸附物的微縮等溫線技術測定活性炭吸附能力的標準實施規程When you buy tickets for the shinkansen bullet trains or long - distance buses, first go to an open counter for service
購買新干線或長途巴士等時,到沒有人的櫃臺,售票員就會代您辦理。For this reason the cycloid is called the tautochrone.
由於這個緣故,擺線又叫做等時曲線。Attempt was made to determine sorption solely on the external surface by extrapolating the sorption isotherms to zero time.
有人設法使吸收只限於表面積上,即按吸收等溫線在時間接近零時所測定的數值。Because color isochromatic fringes appear in the stress model based on a plane polariscope in white light, we studied the problems systematically by a digital camera as image inputting device, digital image processing technique and bp artificial neural network. based on the work that has been reported before, a technique named five - step color phase shifting technique ( fcpst ) to acquire single isoclinics is presented
根據白光入射時應力模型在偏振儀光學系統中的等色線條紋是彩色的特點,本論文採用彩色數碼相機作為數據採集與輸入設備,結合彩色信息圖像處理和bp神經網路等新技術,對上述兩個難題進行了系統的研究,獲得以下成果:在綜合前人工作的基礎上,提出獲得全場單純的等傾角相圖的五步彩色相移法。In automatic acquisition and procession of the photoelastic data, there are some troubles about how to acquire single isoclimcs and to improve the precision of evaluating isochromatic fringe orders in the thin slice of the three - dimension model when the actual problems are solved by photoelasticity
用光彈性實驗處理實際問題時,在數據自動採集與處理中,如何獲得單純等傾線的問題仍是一大難點,此外就是如何進一步提高三維凍結模型薄切片的等色線定級精度問題也比較困難。However, it is still often to draw the thrust isoline graph manually during the data processing
但是,在實際工作中,進行數據處理和制圖時,半手工繪制帶逆斷層的等值線圖的現象還普遍存在。The hybrid algorithm raises the convergence rate of the conjugate gradient method and solves the problem for which the convergence rate of the steepest descent method get slower when the isopleth of goal function is oblong
這種混合優化演算法結合了共扼梯度法和最速下降法產生搜索方向,既提高了共扼梯度演算法的收斂速度,又解決了目標函數的等值線是扁長橢球時,最速下降法下降緩慢的問題,具有收斂速度快、收斂范圍大、適應面廣等特點。For threading needle ( s ), looper, spreader etc. and replacing bobbin
機針、彎針、分離器等穿線和更換旋梭時。Aiming at the non - linear links such as time lag, inertia, dead time and saturation within the turbine regulating system, a fuzzy - immune - pid control system was designed based on a mutative scale chaos optimization method, the principium of immune feedback system and the theory of fuzzy control
摘要針對汽輪機調速系統中存在的時滯、慣性、死區和飽和等非線性環節,採用模糊控制理論,結合免疫反饋機理,設計了基於變尺度混沌優化策略的模糊免疫pid控制系統。In the post - process, uses the microsoft medias technical to design cartoon display mode, it raises cartoon speed and saves disc space, it can produce majority prevailing medias form. in interpolation, introduced dsi method, which improve the interpolation method of isoline, raise algorithm speed and efficiency, satisfy the real - time quality request. on the basis of scanning line algorithm, use opengl smooth interpolate method to improve the implementati
在後處理過程中,引進了dsi插值方法,改進了以往等值線插值,提高了演算法速度和效率,滿足了實時性要求,在掃描線演算法的基礎上,引進了opm沁l插值方法,改進了雲圖實現方法,提高了圖形顯示精度,在動畫格式上,我們可以根掘自己需要實現不同精度的不同壓縮格式動畫文件,提高了后處理顯示應用場合,改變了以往動畫格式單一的形式。This system provides photo elastic, moire, holographic, speckle technology contained in optical measure strain and displacement analysis software interface, and mainly realizes photo elastic image collection, interference image pretreatment, automatic skeleton extract method, automatic main strain trace protraction method and planar photo elastic image strain analysis function. all the work that the author has done has established a good foundation for more realization of an intact optical measure image strain analysis software system. furthermore, engineer and lab assistant can quickly obtain concise, intuitionistic and quantificational information
該系統提供了光測力學所包括的光彈法、雲紋法、全息法以及電子散斑法等技術應力和位移分析軟體實現的介面,主要實現了等差線圖像和等傾線圖像的採集、干涉條紋圖像預處理、全自動提取光彈條紋圖像骨架線、全自動繪制主應力跡線以及二維光彈應力分析功能,為進一步開發完整的光測力學圖像應力分析軟體奠定了基礎,同時使工程技術人員以及實驗人員能夠迅速的獲取簡明、直觀、定量的信息。In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future
本文結合重慶市大渡口區「三木花園」開發建設項目,從地下空間靜力結構穩定性分析角度出發,針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米,高7 . 5米的地下隧道這一具體工程情況,採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算,探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響,通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況,從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律: ( 1 )在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖( ux 、 uy )以及應力等值線色譜圖( _ 1 、 _ 2 、 _ ( xy ) )等; ( 2 )相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ ( xy )對比分佈曲線; ( 3 )不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ ( xy )的對比分佈曲線等,為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。The calculation method of ln ( / tan # ) index widely used is the multiple flow direction algorithm developed by quinn et al. it can been seen that, in the algorithm, the contour length normal to the direction of flow flowing out the current cell is used to determine both a and tan #, and that the calculated total cumulative contributing area of downslide grid cell does not include the area of the current cell
目前普遍使用的計算該地形指數的方法為多流向法。方法中計算和tan用的均是與流出單元網格流向垂直的等高線長。另外計算下坡單元網格累積匯流面積時沒有考慮欲計算ln ( tan )值的單元網格的面積,這些是不合理的。Then, the chaser ' s two orbit roots are selected as variable and visualizing the simulation by contour plot. this part of research draws the conclusion the same as the first part when the target ' s orbit is circular orbit, while the selected two variable can be wildly changed if the target ' s orbit is elliptical orbit. next, wait time before orbit maneuver is simulated
其次,利用可視化的等值線圖研究了追蹤器軌道兩個參數為變量的情況下大范圍軌道機動問題,分析表明對圓軌道目標器交會機動時,追蹤器軌道根數不宜與目標器軌道根數相差過大,而對橢圓軌道目標器交會機動時,追蹤器軌道根數可選范圍較大,機動策略和方法富於彈性。Considering the time of trip proving to be overall evaluation merit on traffic impact area, using the experience of the road impedance function, the article puts forward a method based on time using for evaluating traffic impact area, namely t - tia, and provides a new method which can be applied to evaluate traffic impact area effectively
本文選用出行時間作為綜合評價交通影響范圍指標,在分析出行時間的基礎上,通過借鑒城市時間路阻函數,提出了基於時間的交通影響分析的方法t - tia ,從而確定了交通影響范圍量化的新方法。在對等時線的特點進行分析之後,本文採用其作為基於時間的交影響范圍量化方法的評價形式。Based on the study of the fore going ' s, this thesis regards time - cell, time - center and time - distance as the basic elements of urban time structure. secondly, carry out three constructing principles - - " spatial scale " maps " time distance ", maintain basic spatial structures, extrude main time structures. thirdly, summarize four expressing forms of urban time structure of which isotime curve, isotime circle, time contour and time network
理論探討部分基於前人的研究成果初步確定時間單元/時間細胞、時間中心/時間基點和時間距離為城市時間結構的基本組成要素;提出時間結構構築的三原則: 「空間尺度」映射「時間距離」 、維持空間關系之基本格局、突出表達主幹時間關系;時間結構的表達則從時間結構的形態方面總結出等時線、等時圈、時間廓線圖和網路圖等表達形式;最後提出城市時間譜概念來評價城市時間結構的優劣。Research on an isochrone approach and its shortest routing algorithms based on gis
等時線分析方法及其最佳路徑演算法研究Secondly, combining practical survey method and time - resistance mathematic model, the author obtained average time distance from every time - cell to fictitious time center, isotime curve figure ( by arc view 3d analyze ) and temporal shape
然後利用實際測量法和理論公式法計算出深圳特區各時間單元的平均時間距離,並用arcview中的3d分析模塊自動生成等時線圖。分享友人