星系分類法 的英文怎麼說

中文拼音 [xīngxìfēnlèifǎ]
星系分類法 英文
classification of galaxies
  • 星 : 名詞1 （夜晚天空中閃爍發光的天體） star 2 [天文學] （宇宙間能發射光或反射光的天體） heavenly body...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 星系 : [天文學] galaxy; galact-
  1. By the means of integration of theory with practice, the way how the dangerous weather factors affect the flight safety and the way to deal with have also been analyzed. at last, this thesis analyzed the flight accident at wuhan on 22nd, june, 2000. with synoptic chart, code, satellite nephogram, and radar chart, this thesis explained how the dangerous weather affects the aviation flight safety

    文章最後，採用系統分析方法，對2000年6月22日武漢空難事故產生的天氣因素進行了綜合分析，通過對事故發生期間的天氣圖、電碼、衛星雲圖和雷達圖進行系統分析，指出了造成這次事故存在的危險天氣種類，它們的演變過程，對飛行安全的影響。
  2. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  3. For the regular curves, we find two killing fields for the purpose of integrating the structural equations of the p - elastic curves and express the p - elastica by quadratures in a system of cylindrical coordinates. for the star - like affine curves, we solve the euler - lagrange equation by quadratures and reduced the higher order structure equation to a first order linear system by using killing field and the classification of linear lie algebra sl ( 2, r ), sl ( 3, r ) and sl ( 4, r ). we solve the centroaffine p - elastica completely by quadratures

    對于正則曲線的情形，我們發現了兩個用於求解p -彈性曲線的結構方程的killing向量場並用積分將p -彈性曲線在一個柱面坐標系中表示出來，而對仿射星形曲線的情形，我們用積分方法解出了歐拉-拉格朗日方程，利用killing向量場及線性李代數s1 （ 2 ， r ） 、 s1 （ 3 ， r ）和s1 （ 4 ， r ）的分類將高階結構方程降為一階線性方程，因此我們用積分完全解出了中心仿射p -彈性曲線。
  4. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。
  5. Automated spectral classification of broad - line and narrow - line active galactic nuclei based on k - nearest neighbour

    近鄰方法的窄線與寬線活動星系核的自動光譜分類
  6. The result was used to adjust relative humidity and to enhance the ability of mm5 mesoscale modeling system to produce accurate forecast of precipitation. we define the air condition includes 5 kinds : the clear sky, semitransparent or fractional cloud, high cloud and low cloud and middle cloud. in this process, we present the method development for the generation of cloud based on gms - 5 images. mm5 ( fifth - generation perm. state / near mesoscale model ) output will be extensively used for the off - line computation of dynamic changeable mutispectral thresholds in order to adapt to variable weather using statistical regressive relations produced by optimal regressive analysis

    基於常規地面觀測資料，將天空狀況分為晴空、半透明雲或碎雲、高雲、中雲和低雲5種情況，用最優回歸分析法對mm5模式的三維要素場和常規地面觀測資料進行統計分析，得出雲判別和雲分類的衛星雲圖多譜閾值的統計關系統計回歸判別方程，對衛星雲圖進行雲判別和雲分類，據此得出mm5中尺度數值模式初始場各點的雲分佈，並對模式初始場的相對濕度進行調整，以達到改善中尺度數值預報模式預報結果的目的。
  7. In this article, we review isolation methods, developmental status and genetic characteristics of microsatellites, and their applications in studies on population study, pedigree analysis, assessment of genetic diversity, and construction of genetic maps in the marine mollusks, and analyzed the causes resulting to null allele, stutter bands, short allele dominance and allelic dropout, and their effects on genotyping of microsatellite

    本文對海洋貝類微衛星分離方法、開發現狀、遺傳學特性以及在種群遺傳、家系分析、遺傳多樣性評價等方面的最新研究進展進行了綜述，並分析了微衛星分析中無效等位基因、 「結巴」帶、短等位基因顯性和等位基因「擴增丟失」現象的產生原因以及對微衛星基因型判讀帶來的影響。
  8. In view of the limitation of traditional method of aiming at stars and object calibration, taking weapon system calibration under the special environment encountered in some engineering project for example, analyzes innovative application of weapon system zero check and adjustment under specified environment, puts forward " line calibration method ", in order to provide reference for similar weapon system or combat system calibration

    鑒于傳統瞄星方法和標定物標定方法的局限性，以在工程中遇到的特定環境下的武器系統標定為例，分析了具體環境下武器系統零位檢測與規正的創新性運用，提出了「線標定法」 ，以為類似情形下的武器系統或作戰系統標定提供借鑒。
  9. The system consists of three parts, i. e. the risk - return characteristic of funds, the liquidity of their assets, and the level of investment management. this paper establishes an integrated evaluation function by factor analysis and determines the rates of funds by cluster analysis

    該系統的指標體系由三個部分組成：基金的風險收益特徵、基金資產的流動性和基金的投資管理水平，然後使用因子分析方法構造綜合評價函數，最後使用聚類分析的方法確定基金的星級。
  10. Radiative transfer model in the atmosphere - ocean system is completed in this paper by connecting three - component model of ocean color with radiative transfer theory. and a new atmospheric correction algorithm of ocean color satellite for case ii water is then developed based on this radiative transfer model. we can determine the aerosol parameters and the concentrations of three marine components simultaneously by this algorithm

    本文將水色三分量模型有效地利用到海水中的輻射傳輸過程中，再將大氣和海水中的輻射傳輸有機地結合起來，建立一種較為先進的「大氣?海洋系統輻射傳輸模型」 ，再利用建立的模型發展了一種新的可適用於二類水體的水色衛星大氣校正方法，用這種大氣校正方法可以同時反演大氣氣溶膠參數和水色要素的濃度值。
  11. 3. according to the algorithm of attribute reduction, auto - classification system about stellar spectrum data is designed and implemented through using visual foxpro 6. 0, which automatically extract rules from stellar spectrum

    3 .依據上述屬性約簡演算法，採用visualfoxpro6 . 0數據庫管理系統，設計與實現了恆星光譜數據自動分類系統，實現了恆星光譜分類規則的自動提取。
  12. The construction of input and output sample, designing of classifier and designing of the training network configuration are introduced respectively, some improvement algorithms of bp neural network are discussed. the efficiency of star pattern recognition greatly is improved through ameliorating configuration of network and program method

    介紹了識別系統中輸入、輸出樣本的構造，分類器的設計以及訓練網路結構的設計，討論了基於bp神經網路訓練的一些改進演算法，通過對網路結構與編程方法的改進使星圖識別的效率大大提高。
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