數叉積 的英文怎麼說

中文拼音 [shǔchājī]
數叉積 英文
cross product
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 叉 : 叉動詞[方言] （擋住, 卡住） block up; jam
  • 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...
  1. This study run through the basic idea of ecoregional approach methodology and systematic design by integrating agronomy, ecology, environmental economics, resource economics and maths. the study methods included macro - and micro - analysis, qualitative and quantitative analysis, theoretical and case study, statistical analysis and model simulation and so on. resources shortage and environmental pollution casued by intensive agriculture were examined for a specific suburban area shunyi district beijingissues were systematically analyzed including landuse changes, landuse driving force, water - limited yield simulation with wofost model, ecological, environmental and economical analysis of landuse, as well as optimizing pattern of landuse with rcsadss model

    本研究立足於生態區域法的基本思路，採用系統設計的思想，通過農學、生態學、環境經濟學、資源經濟學、數學等多學科的交叉與融合，宏觀與微觀、定性與定量、理論與實證研究等相結合的方法，運用統計分析、模型模擬等技術手段，在大量調研基礎上，針對目前大城市郊區農業用地中存在資源短缺、環境污染等問題，以北京市順義區為典例，從土地利用現狀與動態、驅動力、 wofost模型產量模擬、生態環境經濟分析及種植業結構優化模式等方面進行了系統研究，獲得如下研究結果： （ 1 ） 2002年順義區的土地利用仍以農業用地為主，耕地、園地、林地和牧草地之和占總土地面積的56 ，農用地中糧食作物仍佔43 。
  2. In order to make the theoretical calculation feasible, we first obtain an analytical formalism of partial integrals with respect to the coordinates of the core and target in the phase - shift functions and their cross terms of scattering matrix elements, if the density distributions of the core and target are fitted to a few gaussian forms. then the rest multidimensional integrals with respect to the impact parameter and coordinates of halo nucleons are performed by a monte carlo method

    為使理論計算變得可行，我們在核芯和靶核密度採用多個高斯分佈擬合的情況下，解析求解了各個散射矩陣元中的光學相移函數及交叉項含有的與暈核核芯、靶核密度分佈有關的積分;同時對與碰撞參數和暈核子坐標有關的積分（八重以上，並且積分維數隨暈核子數很快增加）採用蒙特卡洛方法計算。
  3. As a result, on the basement of macroeconomics, regional economics, ethnic economics, ethnic theories and the edge principles, the writer integrates theories with demonstration, macrocosm with microcosm, history with reality perfectly and make use of the comprehensive, comparative and historical research methods and lots of experiential materials to testify the positive financial policy ' s great promotive effect on western region development and try to find an effective way suitable to the western region development through pointing out some structural problems supported by a series of data analysis

    筆者在宏觀經濟學、區域經濟學、民族經濟學和民族問題理論及其邊緣學科的基礎上，運用綜合、交叉、比較、歷史的研究方法以及大量經驗性材料將理論與實證、宏觀與微觀、歷史與現實、東部與西部有機結合起來，用大量數據說明積極財政政策對西部大開發的巨大推動作用，並通過一系列的數據分析指出西部地區經濟發展過程的某些結構性問題，力求找到一條適合西部地區經濟發展的振興之路。
  4. The students who got higher score in meta - cognition ability had higher performance in problem - posing. 4

    以整體試題而言，依次為量數同構型、多重比例型、比較型、叉積型。
  5. By means of the precise integration method with lagrangian interpolation the trajectory of the shaft center, the poincare mapping and the bifurcation graphs are numerically given. the results predicted by the floquet theory are checked and the long - term dynamic behavior of the system is predicted. it is shown that the system has rich nonlinear behaviors at some m combination of the four parameters, for examples, multi - frequency subharmonic resonance, as well as chaos phenomenon from doubling bifurcation and twice hopf bifurcation

    通過lagrange插值精細積分法數值給出系統的軸心軌跡圖、 poincar映射圖、分叉圖，檢驗floquet理論預測結果並預測系統的長期性態，顯示系統在四個參數組合的某些范圍內具有豐富的非線性特性，還存在多形式次諧波解，以及由倍周期分叉、二次hopf分叉通往混沌的現象。
  6. Based on the processed images, we can do the further computerized quantitative measure of parameters including area, perimeter, integrated optical density, average diameter, shape factor, number of bifurcation and end points, etc. our self - developed and localized system has a reliable property and a high ratio of performance and cost proved by our experiment

    對感興趣區域內的目標自動測量參數，如：面積、周長、綜合光密度、平均直徑、形狀因子、三叉點、端點等。與其它類似系統相比，本系統具有性能穩定，開發成本低，技術性能價格比高的優點，成為國內醫務人員易於掌握與使用的醫學應用系統。
  7. Because of aggravation of market competition, self development, reckoning invest return rate gotten ahead, effort in cross sales, as well as client subdivide, strengthening relationship to important client, these need utilize accumulated data to proceed analyses for client and breed

    再有就是由於市場競爭的加劇，企業從自身的發展出發，要求在投資回報率上進行測算、交叉營銷上進行努力、以及對客戶進行細分、加強與重要客戶的溝通等等，這些都需要利用企業已積淀下來的數據對客戶和品種進行分析。
  8. Aiming to solve this problem, the work of the thesis is shown below : 1. the product ambiguity function ( paf ) - based adaptive time - frequency distribution is proposed. in specific, two adaptive methods for kernel design, the radon - paf based method and the paf - lag - varying filter based method, are presented

    本文針對這一問題開展了如下工作: 1 .提出了基於乘積性模糊函數的自適應時頻分佈，並給出了兩種針對線性調頻信號的自適應核函數設計方法，包括基於radon - paf濾波和基於paf時變濾波的方法，使得該時頻分佈能夠在增強時頻聚集性的同時抑制交叉項。
  9. The crossproduct over weak hopf algebras

    代數上的雙重交叉積
  10. Decycling number of box - cross product of two paths

    關于兩條路的盒叉積的消圈數
  11. The author introduces in detail the affection of adding magnetism, subtract magnetism of permanent magnet to reactance measurement, as well as the circuit and experiment condition under the influence of the cross saturation effect

    詳細介紹了電壓積分法中電抗參數受永磁體增磁、去磁效應影響以及受交叉飽和效應影響時的測量電路和試驗條件。
  12. Two kinds of mathematical models of the forklift truck in intensive test and their formulas of parameters estimation are established ; thereby the cumulative failure strength function of the forklift truck in intensive test is obtained. the author also applies the related - index - method ( rim ) to verify the analysis results

    本文運用隨機過程理論，根據可靠性強化試驗叉車故障數據的特點，建立了可靠性強化試驗叉車的可靠性數學模型，推導了其參數估計公式，從而得到了可靠性強化試驗叉車的累積故障強度函數，並運用相關指數法對分析結果進行了驗證。
  13. This paper mainly study the relations between some algebraic properties of roe algebras and the coarse geometry of metric spaces, and its applications to the reduced crossed product c - algebras and the coarse baum - connes conjecture. the paper consists of two chapters

    本文主要研究這類c ~ * -代數的某些性質與底空間幾何之間的聯系及其在交叉積c ~ * -代數和粗baum - connes猜測中的應用。
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