降階積分 的英文怎麼說

中文拼音 [jiàngjiējīfēn]
降階積分 英文
reduced integration
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 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
  • 積分 : 1. [數學] integral; integrate; integration 2. [體育] （積累的分數） accumulate points
  1. 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。
  2. One of the frontier recearch of basin analysis in recent years is to analyze the tectonic subsidence history of depositional basins which occur in orogens at different geohistory stage, and to discuss the geodynamic processes involved with the basins

    摘要對造山帶各地史階段的沉積盆地進行構造沉降分析，進而探討其地球動力學過程，是近年來盆地分析的前緣研究之一。
  3. Applying those engineering techniques, at present, the following results are obtained : the ground temperatures on the top and at the bottom of an embankment made of crushed rock are all lower than those of common embankment, so the crushed rock embankment is of great advantage of decreasing embankment temperature, and becomes an effective and initiative engineering measure to protect permafrost ; the crushed rock embankment can actively adjust the temperature difference between south slop and north slop, and mitigate the asymmetry of ground temperature ; the deformation of the crushed rock embankment is less than that of common embankment

    通過以上的施工技術，取得了相應的階段性成果：片石路基片石層頂面、底面與路基基底位置處地溫分別低於普通路基相同位置處地溫，片石路基有利於降低路基地溫，是一種有效的主動保護多年凍土工程措施；片石路基在調節路基陰陽坡地溫起到了積極的作用，減輕了路基地溫不對稱性的發生；對比片石路基和普通路基的路基變形量，片石路基的變形量相對較小。
  4. Tricepstrum equalization algorithm ( btea ) and super - exponential ( se ) algorithm based on block data estimation is studied, and these algorithms use hos explicitly. their performance, such as estimation variance and bias, is analyzed. a kind of sparse cross cumulant and sparse equalizer is proposed to simplify the se algorithm, and the simulating results show efficient reduction in complication

    ?研究了幾種直接使用高階統計量的演算法，包括基於數據段估計的倒三譜演算法和超指數演算法，分析了演算法的估計方差和偏差等性能；由於超指數演算法計算量較大，不利於實時均衡，利用水聲通道的稀疏性，提出了一種基於稀疏互四階累積量和稀疏權的演算法，有效降低了超指數演算法的計算量。
  5. Compared to the basins in east guangxi, the basin of north guangxi is characterized by lower depositional and tectonic subsidence rate during rifting, longer thermal subsidence, later inflexion point from rifting to foreland buckling, as well as later inflexion point separating stable stage from active stage during foreland - buckling

    但與桂東大瑤山地區相比，桂北興安地區在裂陷階段的沉積速率和構造沉降速率明顯偏低；熱沉降階段的持續時間偏長；裂陷階段與前陸撓曲階段的分界拐點偏晚；前陸撓曲階段，由構造寧靜期的緩慢沉降向構造活動期的快速沉降轉化的分界拐點也偏晚。
  6. The author points out that dumping is reasonable in its existence and anti - dumping can not at all protect the domestic competitive industries in long term. furthermore, anti - dumping will result in the decrease of the social welfare and the emergence of the trade conflicts. to ease the situation, the author gives some solutions in this article, that is, we should not only reply actively to the overseas chargement of anti - dumping but also strengthen the power of our antidumping. we should build an antidumping organization in consistent with the antidumping law of wto. on the one hand, we should utilize this law to react against the antidumping which the foreign country imposes on our export products and try to eliminate the discrimination treatment to promote the development of export trade. on the other, we should make antidumping law perfect and take anti - measures against the foreign products in china to protect our national industries

    本文通過系統分析，從理論和實務兩方面對我國反傾銷工作進行了綜述，提出了對未來我國反傾銷工作從政府工作，立法活動及公司應對等方面的對策，同時，作者指出：傾銷有其存在的合理性，反傾銷根本不能在長期內起到保護國內競爭工業的作用，其實質是基於國別的貿易保護。另外，反傾銷也會導致社會福利的下降及貿易糾紛的產生。針對現階段情況，作者認為：既要積極應對國外的反傾銷指控，又要加強我國的反傾銷力度。
  7. ( 5 ) by analyzing the terrace in the lacustrine sediment of the ancient barrier lake, diexi, minjiang river, forming of the terrace is not only because of the intermittent arising of the tectonic movement, but also because of descend of the eroding normal covering resulting from destroying of the barrier lake

    （ 5 ）通過對岷江疊溪古堰塞湖湖相沉積中的河流階地分析可知，階地的形成不僅僅是由於新構造運動的間歇性抬升作用，由於堰塞湖的潰決引起洪水下泄，導致河流侵蝕基準面的下降也可以形成階地。
  8. The research showed that : from january to march, the acreage average ozone gross gathered, which was synchronized with the increase of the frequency of strong ssw event. furthermore, the change tendency of ozone gross in the atmosphere break forward and backward 1990. after the1990s, ozone gross in the atmosphere appeared negative anomaly in the mid and high latitude of north hemisphere from january to march, which was consistent with the obvious descent of appearance frequency of strong ssw event after the 1990s

    分析表明： 1至3月，臭氧總量的面積平均逐漸增高，這與強ssw事件頻數1至3月增高同步；此外，大氣臭氧總量趨勢變化以1990年前後存在明顯的突變， 90年代以後，北半球中高緯1 ? 3月間大氣臭氧總量處于負異常階段，這和90年代以來強ssw事件發生頻數明顯下降相吻合。
  9. The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model

    非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。
  10. This paper is developed a algorithm to generate airplane ' s 4d approach trajectory, by using fourth order runge - kutta, based on a set of point mass equations of motion, pilot procedure and air traffic control procedure

    本論文是基於飛機質心運動方程組，結合飛行操作程序和空管管製程序，根據飛機的空氣動力學模型、推力模型和實時的大氣氣象模型，用四階龍格? ?庫塔積分法規劃出飛機下降進近4d軌跡。
  11. Recently, clusters with distributed memory are popular for parallel computing systems, and mpi is the actual standard of message passing programming. therefore, the application of clusters based on mpi to computational electromagnetics is studied in this dissertation. the methods are mom based on the integral equation method in conjunction with the preconditioning technique to speed up the iterative solution and a matrix order reducing method, namely the characteristic basis function method ( cbfm )

    目前，分散式內存的集群系統是并行計算系統的主流系統， mpi是消息傳遞編程實際上的標準，本文即研究了基於mpi的集群技術在計算電磁學中的應用，採用的方法主要是基於積分方程的矩量法，並結合了加速迭代的預條件技術以及一種矩陣降階方法? ? cbf方法。
  12. Planation surface is a wide - ranging and undulating surface formed by planation in a long and relative stable period or in a decreacing - development period. it is near the base level and there always exists some deposits such as crust of weathering above it. planation surface is often uplifted or buried by the later tectonic activities

    夷平面是在長期的地殼相對穩定時期或地殼下降發展階段，由廣泛的夷平作用以截斷面形式橫切所有先成的地層和構造的接近侵蝕基準面的平緩的地表形態，其上常有風化殼等碎屑堆積，常遭到後期的抬升切割或埋藏，分佈於地球的各緯度帶。
  13. This paper researches blind equalization ruler, analyses the knowledge of hos and summarizes some algorithms based on the hos. odd - order ( third - second order and fifth - second order ) normalized cumulant algorithms are introduced and a new blind equalization ruler is proved and introduced after researching even - order normalized cumulant algorithms. then the steepest descent method is used to derive the algorithm

    在分析偶數階歸一化累積量演算法的基礎上，提出了奇數階（三、二階和五、二階）歸一化累積量演算法，論證並推導出一種新的盲均衡準則，最後利用最速下降法形成了新演算法。
  14. Topography fractal dimension related with process of development of watershed physiognomy and represented degree of watershed development, v ) sediment yield intensity of watershed model reflected erosion characteristic of watershed model in different development phase. simulating experiment indicated that sediment yield intensity took on the trend that they changed from small to big then decreased gradually. the relationship of average sediment transport rate and sediment yield rate per mm rainfall with topography fractal demension is expressed by gaussian model and this model is similar with relationship between volume and surface area

    （ 5 ）流域模型產沙強度的變化反映了流域模型在不同發育階段的侵蝕特徵，模擬試驗研究結果表明：在整個流域模型地貌地貌的發育過程中，其產沙強度呈現由小到大，然後又逐漸減小的總體趨勢，流域模型單位降雨產沙率及平均輸沙率與地形分維數表現為gaussian模型關系，其關系形式與結論3中相對體積和表面積之間關系相似，進一步說明了以地形分維數表達地形變化的合理性。
  15. The tower shafts, most of which are hollow and varying in cross section, and altitudinal construction bring trouble to the form work and the stress of strand wire. and the cracks on the crossbeams will be caused by the following - deformation of the bracing structure joints, elastic deformation ， uneven settlement and temperature changes. the additional stress of the base slab and the foundation is caused by the deviation of cable bent tower construction

    但大跨度橋梁混凝土索塔施工設備進場及現場管理都比較困難；塔柱多為空心變截面，且為高空作業，給模板工程及預應力張拉帶來一定困難；支撐系統連接的間隙變形、彈性變形、不均勻沉降以及環境溫差可導致橫梁裂縫；索塔施工偏位會引起的承臺和基礎的附加應力，對加勁梁的架設影響大；懸吊結構未完體系（架設時）施工階段的風致振動往往影響到施工的安全和質量；實心塔柱部分體積較大，易產生溫度裂縫。
  16. ( 6 ) the validity of control methods of crack has been verified by using engineering instances. on the basis of the researches mentioned above, some crucial conclusions are acquired as follows : ( 1 ) during construction, the cracks in beams and girders were caused by the drop of temperature and by the difference in the inside and outside temperature. the crack in slab was caused by shrinkage due to the loss of water

    通過上述研究工作得出了一些重要的成果： （ 1 ）在施工階段，大面積現澆樓蓋結構主次梁的裂縫由溫度降幅和內外溫差引起，板的裂縫主要由失水收縮引起； （ 2 ）在施工期，由水化熱引起的應力主要分佈在主次梁中，板中應力較小。
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