時空因數 的英文怎麼說

中文拼音 [shíkōngyīnshǔ]
時空因數 英文
temporal and spatial factors
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 時空 : space time:[相對] space time continuum時空點 event; 時空度量 space time metric; 時空反演 space ti...
  1. We ca n ' t divide the multiple streams time series into singleness times series simply in the research of multiple streams time series, we ' ll dissever the relation between the events of the multiple streams. although the msdd can find the dependency relationship of multiple streams, but it have n ' t the initialization of the events, the express of the time relationship between events is not frank, the cost of the algorithm is expensive ( o ( n5 ) ), i ca n ' t find much more knowledge in multiple time series, it find the dependency patterns only of the multiple time series, so there need a new more effective, frank, complete algorithm to find the knowledge

    研究多流時序不能簡單地將它割裂為單流時序，因為這樣就割裂了數據流事件之間的關系。雖然msdd能夠發現多流時間序列中的依賴模式，但是由於其缺少對數據的初始化、事件之間時間關系的表示不直觀、演算法執行的時間空間開銷很大（ o （ n ~ 5 ） ） 、不能夠充分發現多流時間序列包含的知識，它只發現依賴關系，因此研究新的，高效，全面的發現多流時間序列事件之間關系的演算法成為必要。本文分析了單一和多流時間序列中的知識發現，把多流時間序列事件內部存在的關系表示為：關聯模式、依賴模式、突變模式。
  2. Mathematically, einstein found that spacetime is similar to a stretchy fabric, much like a trampoline

    愛因斯坦通過數學方法發現時空結構是彈性的，就像蹦床。
  3. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  4. Are used in above deduction. therefore it is necessary for us to review the basic concepts of quantum mechanics and relativity from the deflection notion of analytical space - time so as to get a profound math expression - space - time wave function stwf to link relativity up to quantum mechanics. assuming that one plane cosine wave travels along

    因此，我們有必要從解析時空理論的時空偏轉原理出發，對量子理論和相對論的基礎概念重新認識，進而得到更廣泛更深刻並將量子理論和相對論連系在一個方程下的新的數學表達式-時空波函數。
  5. Leo kadanoff is a theoretical physicist who has done research on chaos theory, superconductivity, phase transitions, fluid flow, the sociology of urban areas, heat transfer in missiles and elementary particle physics, during the last twenty - five years, he has devoted considerable effort to the development of teaching programs for underaduates based upon the use of small computers

    本書作者將電動力學、引力理論和規范場論現代物理學中三種最基本的理論，納入一個共同的體系，內容既包括引力理論物理基礎的介紹，同時也提供了描述愛因斯坦廣義相對論所必須的數學基礎，如彎曲時空的幾何等等。
  6. In these thesis, on the basis of existing data collected of arch bridges and dynamics, simply introduce the development and application of the analytical method and finite element numerical analysis method of arch bridges. taking the example of pubugou cfst arch bridge, establish 3 - d finite element model of it with software ansys, and analyze its natural vibration. the effects on inherent vibration of the differences of structure parameters, the restriction of the deck and the effects of different arrangements of cross braces are analyzed

    本文在收集有關拱橋及動力學資料的基礎上，分析了拱橋動力學的解析分析法和有限元數值分析方法的優缺點，同時以瀑布溝大橋為背景，使用ansys軟體建立了空間有限元模型，實施了橋跨結構的自振特性分析；並分析了考慮到模型簡化過程中部分結構參數取值差異、橋面板的約束狀況不同等因數對自振特性結果的影響；此外還對橋面上的橫撐布置不同導致對自振特性的影響作了分析。
  7. Under the guidance of theories of regional economics and land science, this dissertation focuses on studying spatially and temporally the causes and the resulting rules of land use difference at provincial level, applying the data of national land use present investigation and the related statistical material. it intends to shed light on the study of the regional difference and the optimization of the essential production factors ( land, capital and labor, etc. ) so as to benefit the national and provincial land use overall plan

    以區域經濟學和土地科學的理論為指導，依據全國土地利用現狀調查數據和有關社會經濟統計資料，從區域層次上和時空尺度上著重研究中國省區土地利用差異的成因及其影響規律，為全面研究區域差異與區域間生產要素（土地、資金、勞力）重組和編制全國與省區土地利用總體規劃提供依據。
  8. And the fuzzy control technology has been studied that reduce the stator terminal voltage to achieve higher power factor through testing power factor and using certain rules. the asynchronous motor intelligence operating control system plan design has been completed. simulation design and simulation experiment of the system has been carried on, and the simulation result indicated this intelligence control system has achieved the anticipated effect

    在分析電機功率因數角的變化規律及功率因數角對晶閘管輸出電壓的影響的基礎上，提出了異步電動機在輕載或空載運行時通過檢測功率因數並經過一定規則降低定子端電壓來達到提高功率因數目的的模糊控制方法，完成了異步電動機節能運行控制系統的軟硬體設計，並進行了系統的模擬研究與實驗研究。
  9. Finally a set of equations with initiate values for boundary value problem is established where the velocity potential and its normal derivative are unknowns. because the model includes the effects of both the time and space to the velocity potential of free surface, it can be applied to strong nonlinear wave. as examples, solitary wave is computed in the numerical flume

    推導給出計算域內以所有節點波勢函數和波面位置高度的時間增量為未知量的線性方程組，並同時考慮時間因素和空間變位對波面勢函數的影響，在預設的計算精度下，通過時步內的循環迭代逐一確定每個時步上的波面運動位置，從而建立了一種可適于求解強非線性波浪變形計算的數值模式。
  10. Adopting the actual county - grade database of land use firstly founded in china, combining with the comprehensive influential factors of land use change, using the correlative statistic software and the mathematic analytical methods ( principal component analysis, gray relating analysis, multivariate time series markov chain analysis, multivariate regression analysis, gm ( 1, 1 ) gray model, gray series gm ( 1, n ) model methods etc ), this paper analyses the dynamic change of land use and driving force in jiang ' an county qualitatively and quantitatively. the results indicate : 1 the land resource per capita and the area of single - land - use type in jiang ' an county are not prior to other places in yibing city or sichuan province. however, the terrain is dominant in choosing the way of land use

    本文採用全國首批建立的「縣級土地利用現狀數據庫」的基礎數據，結合影響土地利用變化的經濟、社會、環境等綜合因素，採用相關分析軟體（ dps 、 spss ）和數學分析方法（主成分分析、灰色關聯度分析、多元回歸分析、多元時空序列馬爾柯夫鏈分析、 gm （ 1 ， 1 ）預測模型分析、灰色序列gm （ 1 ， n ）模型分析等方法） ，對江安縣土地利用變化及其驅動力進行定性、定量研究，研究結果表明： 1江安縣人均總的土地資源數量和單一土地利用類型的數量在宜賓或四川省區域內均無優勢；地形對土地利用方式的選擇起著主導作用；土地利用變化的總趨勢是：耕地、林地、交通用地和水域面積不斷減少，居民點及工礦用地和未利用地面積不斷增加；景觀多樣性指數呈現「 」趨勢。
  11. Furthermore, utilizing the characteristic that filtering error covariance expresses filtering precision and the principle of information conservation, the dynamic and reasonable distribution of distributed tracks weight coefficient is accomplished. jerk model and strong tracking filter is organically assembled, and based on spatio - temporal synthetically analysis and lme, a self - learning estimation method of the system measurement variance is given. the method improves obviously the

    3 、將jerk模型與強跟蹤濾波演算法有機地結合，並利用時空綜合分析和極大似然估計的思想推導出了一種系統量測方差自學習修正方法，以優化強跟蹤濾波演算法中次優漸消因子和濾波增益的在線選擇，同時根據多傳感器數據融合具有改善濾波精度的性質，進而給出一種基於jerk模型的多傳感器數據融合演算法。
  12. In this text we make a diagnosis of linear and nonlinear response of quasi - quadrennial ( qq ) and quasi - biennial ( qb ) component of nino3. 4 index by using reanalyzed ncep / ncar data of sst, wind stress ( pseudo stress ) field, ssp, then have a time and spatial analysis of wind stress field by using mssa, and finally find the importance and contrast the effect of different wind stress field forcing the sea so as to find the cause ofenso irregularity

    本文首先分析海表溫度（ sst ） 、風應力場、海表面氣壓（ slp ）等ncep ncar再分析的月距平場對于nino3 . 4指數的準4a （ qq ）和準2a （ qb ）振蕩成分的線性和非線性響應，接著用mssa （多通道奇異譜分析）對風應力場進行時空特徵分析，最後用一個熱帶太平洋動力海洋模式研究具有不同振蕩性質的風應力場對海洋強迫作用的重要性及差異，尋找enso不規則性的原因。
  13. Hence, the numerical modeling is the practical and unique method for the acquisition of the statistical distribution of ocean waves with the high - resolution in the larger zone

    因此，進行數值模擬配以個別實際測點的驗證，以求得大面高時空解析度的波浪場分佈是可行的，也將成為不可替代的工具。
  14. In this paper we analyze the characteristics of the source of space data system and give three types of source packet model ; the relationship between m _ pdu multiplexing efficiency and transfer frame completion waiting time has been educed by the analysis of the process of packet multiplexing and frame completion ; then we analyze several key aspects that affect the protocol throughput performance metric to formulate the throughput performance metric of aos packet service

    本文在理論方面，在總結分析空間數據系統信源特徵基礎上，建立三種信源包模型;通過分析包通道復用與成幀過程，得出m _ pdu復用效率與成幀等待時間的關系;探討了三種虛擬通道復用方案;對影響aos協議包業務吞吐量性能指標的幾個關鍵因素加以分析，推導出aos協議包業務吞吐量指標計算公式。
  15. In this paper, it is introduced to the influence of cavitation factor, measurement taps, sampling frequency and sampling time on the test result in pressure fluctuation test of the water turbine

    摘要介紹了水輪機壓力脈動試驗時空化系數、測量位置及測點、信號采樣頻率及采樣時間等因素對試驗結果的影響。
  16. Therefore, it is useful to know the typical update patterns for a database when planning how much space is required during the planned lifespan of a snapshot

    因此，在計劃快照預計使用期限內所需空間量時，了解數據庫的通常更新模式是很有用的。
  17. How the universe evolves is affected by three factors, namely the mean density of mass - energy, the space - time curvature and a mysterious factor, the cosmological constant

    宇宙尺度的變化受三個因素影響：宇宙中質量-能量的平均密度宇宙的時空曲率與及一個神秘因素宇宙常數。
  18. Since each of the conductors in a data cable travels through the same physical space, it is reasonable to expect transients caused by environmental or current switching to be “ common mode ” that is, present on all data and ground conductors within the data cable

    因數據電纜中的每個導體所通過的物理空間是一樣的，期望由於環境或電源通斷引起的瞬態電壓同時出現在數據電纜里的所有的數據線和地線，成為「共模」電壓是合理的。
  19. Firstly, this dissertation estimated the size of carbon source ; sink and net carbon sink of farmland ecosystems in china costal regions ( including ten provinces ) with statistic data from 1981 to 2001, which include data of crop yield and agricultural consumptions. then analyzed the temporal - spatial differences of carbon source, sink and net carbon sink of china costal farmland ecosystems. secondly, estimated npp ( net primary productivity ) of farmland ecosystems in china costal regions with per month noaa - avhrr ndvi ( normalized difference vegetation index ) data and estimation model

    本文首先運用1981 - 2001年的統計資料（作物產量和各種途徑的農業投入數據） ，對沿海十省區農田生態系統碳源匯及凈碳匯進行了估算，並分析了其時空差異；然後運用1998年逐月ndvi數據通過建模對沿海地區農田生態系統npp進行了估算，並分析了npp分佈與農田生態系統碳吸收的相關性；最後通過對農田生態系統碳源匯的影響因素分析，提出了不同的農田生態系統碳增匯減排技術。
  20. Taking jiuyuan, baotou as the sample region, the administrative unit, county and town, as the statistic objects, the paper analyzes the driving factors of change of land - use from the time and space dynamic change of use of land resources. then, the paper establishes a forecast modal of change of jiuyuan ' s land - use, which can provide the regional land organization with the decision basis of planning and management of land - use and sustainable use of regional land resources

    在地理信息系統技術的支持下，以鄉、鎮（蘇木）級行政單元為統計單元，從土地利用時空動態變入手，應用數理統計方法分析土地利用變化驅動因素，並建立預測模型，最後指出九原區土地可持續利用的對策及措施，為區域各級部門進行土地利用規劃與管理以及土地持續利用提供決策依據。
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