有界算符 的英文怎麼說

中文拼音 [yǒujièsuànfú]
有界算符 英文
bounded operator
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 界 : 名詞1 （相交的地方; 劃分的界限） boundary 2 （一定的范圍） scope; extent 3 （按職業、工作或性別等...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 符 : Ⅰ名詞1 （符節） tally （with two halves made of wood bamboo jade metal issued by a ruler to gener...
  1. With the characteristics of actual ship - board massmer having been duly considered, this lab - based massmer has been designed to have friendly interfaces, convenient operation and management, reliable performance and to be in conformity with the requirements of education and training. during the development of this system, a number of up - to - date technologies in the computer information area have been fully employed such as the technology in fieldbus, network, database, netdde and intouch etc. as a result, this system is characterized by the following points : 1

    在實驗室內建立的這套船舶機艙監測報警模擬系統，充分考慮並結合實際船舶機艙監測報警系統的特點，該系統具有良好的用戶界面，操作管理方便，工作可靠，符合教學和訓練需要，系統在開發過程中，充分利用了目前計算機信息領域的許多最新技術，如現場總線技術、網路技術、數據庫技術、 netdde技術、 intouch技術等，使本系統具有以下主要特點： 1
  2. This paper gained a satisfying answer by consulting a great deal of materials, and participating in the " chinese tourism employment planning system goal and strategic measure study " in national development and reform commission. there are five parts in the paper

    世界旅遊組織計算的中國旅遊經濟就業人數過于龐大不太符合我國的實際情況，在目前我國旅遊統計體系還不健全，缺少「旅遊衛星帳戶」的情況下，這個問題至今沒有一個完整的答案。
  3. The pseudo excitation method ( pem ) has brocken its efficiency - bottleneck, and appears to be quite effective in coping with such multiple excitation random analyses. therefore introducing the random vibration approach into the bridge engineering as a tool of seismic designs not only meets the objective requirement and the modem technological development, a good methodology background is also available

    虛擬激勵演算法突破了計算效率瓶頸，並且易於處理多點激勵問題。因此，將隨機振動法作為一種新的橋梁抗震設計方法引入我國橋梁工程界不僅符合客觀需求，體現了設計水平的現代發展趨勢；而且在方法論上也有了比較有利的條件。
  4. In this paper, a model of debris flow is calculated by using the finite nodes method with triangle cells. the method is combined with fdm and fem. vast applications proved that it can suit for complex boundary as fem and is efficient as fdm

    這種方法將有限元的思想與有限差分的方法結合起來，吸收了有限元方法中三角網格模擬邊界條件符合實際情況的優點，又具有差分方法計算量小的特點，方法的適用性經過了大量工程實踐的檢驗。
  5. There are distinct changes about shifts or intensity in bulk plasmon, surface plasmon, and interband electron transitions losses as a result of oxidation of specimens, and adsorption and oxidation processes can be studied through these changes. at room temperature, the formation of oxide layers on uranium and uranium - niobium alloys were found to occur rapidly upon exposure to oxygen, and the resultant oxide in each case was near - stoichiometric uo2. due to formation of niobium oxide in uranium - niobium alloys, the diffusion of o ~ ( - ) ( o ~ ( 2 - ) ) and u ~ ( 4 + ) in the interface region was prevented, and the corrosion resistance of uranium - niobium alloys to oxygen is greatly enhanced by alloying with niobium

    研究結果表明：清潔表面鈮和鈾的體等離子體振蕩所造成的電子能量損失的實驗值與理論計算值較為符合；隨著氧化程度的加劇，表面等離子體（ sp ） 、體等離子體（ bp ）以及價帶電子躍遷所造成電子能量損失的譜峰發生了明顯的連續偏移或強度的變化，這些變化可以用來分析鈾及鈾鈮合金的初始氧化過程；室溫下，鈾及鈾鈮合金很容易與氧作用，最終結果，鈾僅氧化為二氧化鈾，另外，在鈾鈮合金氧化過程中，因為有鈮的氧化物存在，不利於氧和鈾在界面擴散，增強了鈾鈮合金抗氧化性能； eels能獲得樣品表面的信息比aes更為表面，更為靈敏，但由於eels的譜線過于集中，主要在幾十ev以內，也有不容易區別和解譜的不足。
  6. Firstly, the analyses on the dynamical response of the tsing ma bridge ( tmb ) under traffic loading are performed on the basis of the three dimensional finite element model of the full - scale structure of the bridge, and some regions critical to fatigue damage are determined from the result of the dynamical response. the hot spot stress approach is usually adopted in the fatigue design and analysis of tubular welded joints. to apply the hot spot stress approach for the fatigue evaluation of long - span suspension bridges, the fem is further used to determine the hot spot stress of the critical fatigue locations

    首先，在青馬大橋三維有限元模型和整體動力響應分析計算的基礎上進一步進行關鍵疲勞構件的局部熱點應力分析，對疲勞危險部位處的焊接構件建立三維有限元模型，施加符合橋梁實際工況的載荷與位移邊界條件，進行局部熱點應力分析，確定這些焊接構件內的名義應力和相鄰焊接區域內熱點應力之間的關系，得到相應的應力集中系數。
  7. Foundation structure design in soft soils is a very difficult engineering problem. the elastic foundation beam method has some merits such as easy calculation pattern and definite model and m - method is fit to practical situation, so it is used comprehensively and welcome by constructors, thus m - method is recommended by many codes. but it is difficult to select a m - value to some soils, and the codes provides a scope of m - values, and they are different in varied regions and soil conditions, thus it is optional to choose m - value of a soil layer for engineering designers. so it is necessary to calculate m - values by back - analysis method using measured datu of deep foundation pit

    軟土地區的深基坑支護結構設計是一個十分復雜的工程問題，由於彈性地基梁法具有計算模式明確、計算過程簡單的優點，尤其是m法較符合軟土基坑工程的實際情況，因而受到廣大工程設計人員的歡迎，大多規范也推薦此法。但是m法計算參數的選取是工程界的一大難題，一般規范都給出了m值的大致范圍，而且每個地區的地質條件千差萬別，因而m的取值具有很大的隨意性，有必要根據一個地區的工程實測資料對m值進行反演分析，以便為地層相近或附近地區的基坑工程設計提供參考和依據。
  8. Referring to three kinds of plan irregularity, structures individually with four kinds of irregularity as eccentricity in one direction, eccentricities in two directions, re - entrant corner irregularity and diaphragm discontinuity have been analyzed to investigate the relationship between torsion effects and parameters of above irregular structures. the parameters and the schemes for determining the scope of structures with different kind of irregularity considering seismic action in two directions simultaneously are proposed, some conclusions have been get as following : it is indicated by the analysis results that torsion effect has no dependency relation with eccentric torsional angel adopted in code for seismic design for buildings. it is suggested that the eccentric torsional angel should not be take as the parameter of torsion effect of structures considering seismic action in two directions simultaneously ; for the structures with regular plan and elevation and with eccentricity in one direction due to irregular mass layout, the relative eccentricity can be take as the parameter of torsion effect of structures considering seismic action in two directions simultaneously ; for the structures with regular plan and elevation and with eccentricities in two directions due to irregular mass layout, the ratio of relative eccentricities in two directions and the angel of them can be take as the parameters of torsion effect of structures considering seismic action in two directions simultaneously ; it is indicated by the analysis results that the torsion effect has no dependency relation with re - entrant corner ratio adopted in code for seismic design for buildings as

    所取得的主要結論有：結構的扭轉效應與《抗震規范》所採用的扭轉不規則指標即偏心扭轉角之間的相關性較差，偏心扭轉角不宜作為判斷結構是否計及扭轉效應及需考慮雙向水平地震作用的界定指標；對于樓層間均勻偏心的多層單向偏心結構，建議採用相對偏心距作為需考慮雙向水平地震作用的界定指標，並給出針對不同平面尺寸的界限相對偏心距；對于樓層間均勻偏心的多層雙向偏心結構，建議採用兩個主軸方向的相對偏心距及其夾角作為界定指標，結合單向偏心結構的界定方案進行需考慮雙向水平地震作用的結構范圍界定；凸凹不規則結構的扭轉效應與凸凹比例無正相關關系， 《抗震規范》要求所有平面布置不對稱的凸凹不規則結構計及扭轉效應的規定欠妥當，建議凸凹不規則界限值從30改為15 ，只要求分析採用空間模型比較合適； 《抗震規范》關于有效樓板寬度較小的結構需計及扭轉效應的規定很有必要，樓板局部不連續的結構需採用符合樓板實際剛度的計算模型予以分析，可使用相對偏心距（及其夾角）參照單向（和雙向）偏心結構的界定方案，界定樓板局部不連續結構是否需要計入雙向水平地震作用下的扭轉效應。
  9. In this paper a newly develoed helical coordinates is used to make out the solution of electromagnetic fields in the helix gap and calculate dispersion characteristics of tape helix slow wave structure for the first time. strict boundary conditions for magnetic fields are adopted and are treated rigorously by fourier expansion. besides, the radial propagation constant of every layer in the dielectric - loaded region is differentiated. some of practical tape helix slow wave structures have been calculated for dispersion characteristics and the calculated values accord with measured values very well. the authors also compare the calculated results with experiments for different structures by changing tape thickness or other structure parameters and find that the theory in the paper is universal

    本文首次運用螺旋坐標系給出了帶狀螺旋線縫隙內的電磁場解，並據此計算了帶狀螺旋慢波結構的色散特性.文中採用了嚴格的邊界條件，並以傅立葉展開進行了嚴格的數學處理.另外還首次對有介質區域內各層的徑向傳輸系數作了區別.本文使用這種方法計算了我們已研製的一些寬帶高功率行波管所用的慢波線結構的色散特性，理論與實驗符合得很好.我們還計算了不同結構參數對色散特性的影響，並與實驗作了對照，發現本文的理論有一定的普適性
  10. Our purpose is to develop an open, easily maintainable, extensible and user - friendly scientific data mining system ( sdms ) which can extract useful knowledge from scientific data and analyze the simulation result of scientific computing. the system is hosted on dbms and windows platform. currently a prototype system with functions of data denoise, compress, attribute reduction, discretion, classifying and clustering has been completed

    科學數據具有維數高、數據量大，數據不完全，有噪聲等特點，本課題在現有的數據庫和windows平臺上，開發一個具有開放體系結構的、易擴充的、易維護的、具有良好人機交互界面的數據挖掘系統，從科學數據中提取隱含在其中的有用的知識，為科學計算中的模擬信息提供符合規律的模擬結果分析。
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