整數分解難題 的英文怎麼說

中文拼音 [zhěngshǔfēnjiěnántí]
整數分解難題 英文
integer factorization problem, ifp
  • 整 : Ⅰ形容詞1 （全部在內; 完整） whole; all; complete 2 （整齊） neat; tidy; orderly Ⅱ動詞1 （整理; 整...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 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
  • 解 : 解動詞（解送） send under guard
  • 難 : 難Ⅰ形容詞1 （做起來費事的） difficult; hard; troublesome 2 （不容易; 不大可能） hardly possible 3...
  • 題 : Ⅰ名詞1. （題目） subject; title; topic; problem 2. （姓氏） a surname Ⅱ動詞（寫上） inscribe; write
  • 整數 : 1. （不含分數或小數的數） integer; whole number; integral number2. （沒有零頭的數目） round number; round figure
  • 難題 : difficult problem; a hard nut to crack; aporia; poser; hot potato; facer; headache; stinker; teas...
  1. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
  2. For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics

    利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0
  3. Associated with a project of the planned xuefengshan tunnel with 7. 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway, this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure. then, based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure, a spatial computation model is made, a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed, and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics, different classes and under different construction methods. and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved

    6公里的雪峰山隧道工程，首先介紹了隧道支護結構的常用分析計算方法；然後通過對隧道施工過程中，洞室穩定性與支護結構相互作用機理的深入分析，建立了隧道施工過程的空間計算模型，提出了採用三維彈塑性有限元-無限元耦合的數值計算方法，綜合分析了隧道在不同圍巖特性和圍巖類別條件下，以及不同施工開挖方案等對隧道圍巖整體穩定和安全性的影響，從而解決了通用有限元方法難以解決的隧道三維無限域問題；其可充分發揮有限元法在分析非線性方面的有效性和成熟性，以及無限元法在分析處理無限域和半無限域方面的精確性和簡便性，為隧道施工過程中圍巖的穩定性分析開辟了一條新的途徑。
  4. Transport traditional warehousing enterprises are established in the majority of the planned economy era, state - owned enterprises, these enterprises generally logistics infrastructure investment is insufficient, but has many years of experience in the logistics operation, and rules and regulations, good corporate reputation, warehousing and transport operations at the core provide relatively complete logistics services, with a strong ability to attract customers, and formed a basic customers in the community establish corporate image and brand effect of the logistics business remained relatively stable development of the situation, but as a modern logistics development, a modern logistics, long - span, dynamic and strong, can be divided into and the complexity of the advantages of traditional storage transport sector there are many issues, such as : management methods are backward ; the logistics facilities and equipment, lack of investment in facilities aging ; still lack the overall planning of a detailed and clear market orientation, lack of modern logistics management concept outdated marketing logistics, resulting in the mainstream enterprise customer groups scattered, low - level mobility of the large, it is difficult to retain the high - end customers ; enterprise systems and internal operating mechanism of the lack of vitality

    留學解答資訊網:傳統的倉儲運輸企業多數是建立於計劃經濟時代的國有企業，這些企業一般對物流基礎設施投入不足，但是有多年的物流運作經驗，和規章制度，良好的企業信譽，以倉儲和運輸業務為核心，提供相對齊全的物流服務，具備了較強的招攬客戶的能力，形成了基本顧客群，在社會上樹立起企業形象和品牌效應，使物流業務保持著相對穩定發展的態勢.但是隨著現代物流的發展，較于現代物流，大跨度性、動態性強、可分性、復雜性等優點，傳統倉儲運輸業出現了許多問題，例如：管理手段落後；對物流設施設備的投入不足，設施老化；尚欠缺詳細的整體規劃和清晰市場定位，缺乏現代物流管理理念；物流營銷方式比較陳舊，造成企業主流客戶群體分散，級別較低，流動性大，難以保留中高端客戶；企業體制與內部運作機制欠缺活力。
  5. Based on this and taking dongguan sanlian mechanical ltd. as a example, utilizing uml, this thesis analyses the realization of the information system in the company from the field of demand and problems, it establishes static, dynamic behaviour models together with object view. besides, it physically achieves thecombination and disposition of view, database models. lt also discusses the difficulties in the realizing process of the system and provides solutions. furthermore, it realizes the information system and brings out a comparatively complete course

    在此基礎上，以東莞三聯機械股份有限公司為實例，利用uml ，對公司的信息系統的實現進行了需求和問題領域分析，建立了靜態、動態行為模型，對象類圖及物理實現組圖、配置圖、數據庫模型，討論了系統實現過程中的難點並提出了解決辦法，實現了信息系統實現一個比較完整的過程。
  6. It expatiates the implementation circuit of key technology of the clutter storage and binary detection in radar signal processing. the second part discusses implementation of radar data processing in this system. it introduces the c ~ - ~ 3 filter algorithm and software design of the auto - detect - system in details

    第一部分介紹了雷達信號自動檢測錄取和恆虛警處理的有關理論基礎和硬體實現，詳細闡述了雷達視頻處理中的雜波圖存儲、二進制檢測等關鍵技術的工程實現；第二部分介紹雷達數據處理在本系統的實現，詳細地介紹了-演算法原理和整個錄取系統的軟體體系設計，並就雷達錄取程序中有關難題的解決作詳細探討。
  7. The key to face those challenges and grasp opportunities lies in how to effectively integrate the information technology with courses teaching. however, some extensively existing factors, such as the lack of it integration method, underdeveloped software design, immature of evaluation guidelines, gradually become the main handicaps towards the it integration in education orientation. based on the features of it era and the current integration of it utilizations with course teaching, guided by related education theories and concepts, and combined with the practical teaching examples, this paper discussed the basic principles and paths towards the it combination into course teaching, and seeks to explore and try out an acceptable it integration guideline and method for primary schools, especially for those in rural areas

    諸如缺乏信息技術與學科有效整合的方法體系，多數教師主要集中在一節課或某一專題思考應用問題，缺乏對學科整體的把握;資源與軟體設計方法不夠科學，過于注重網路形式，缺乏有針對性的資源和軟體，教與學的關鍵困難解決不夠理想;信息技術優勢發揮不充分，缺乏對信息技術核心理論及方法的了解，資源和軟體往往僅使用了信息技術淺層次的優勢;缺乏有效的應用支撐體系;缺乏有引導性的評價體系，如什麼樣的課是好的整合課等。
  8. For the quantification risks, the " geometric mean " is selected as the tool to rate the risk level ; for the qualification risks, the ahp approach was used to illustrate the different risk level. 4 、 the ahp method was proposed to determine risk response plan. by this approach, the various risks knowledge dispersed within the risk management organization such as the managers " experience and project history data can be used for the project risk management

    為了解決風險因素特性的難于量化問題，本文還另外給出了風險重要度的定性整合ahp方法； 4 、提出了風險響應措施擬定與選擇的ahp方法；該方法可以有效地利用分散於項目管理機構中的風險信息（經驗、數據） ，選擇出最適宜的風險響應措施； 5 、提出了工程項目風險管理的循環周期概念，通過該周期的循環體現項目風險管理的面向過程性和動態性；將周期性風險管理與項目本身的生命周期有機地結合，提出了一個面向過程的項目風險動態管理框架體系。
  9. A new traitor tracing scheme on large integer factoring problem

    一種新的基於大整數分解困難問題的叛逆者追蹤方案
  10. In proc. the 1st acm conf. computer and communications security, fairfax, va, november 3 - 5, 1993, pp. 62 - 73

    然而，迄今位置，還沒有基於整數分解難題而構造的無密鑰泄漏的變色哈希函數
  11. The intelligent inspection system of pipeline is established and the project database is designed, the interpolation and signature map of defect mfl signal data are solved effectively, the feature automatic extraction and intelligent evaluation of geometric parameters of the defects are shown and proved practical ; the whole process of pipeline inspection are given step by step, these results and conclusions help improve the pipe defect recognition and solve some difficult problems in the field of pipeline mfl inspection

    建立了管道（鋼管）缺陷漏磁法智能檢測和數據分析系統，設計了系統工程數據庫，實現了缺陷漏磁場數據的插值和圖像處理，完成了缺陷漏磁場特徵自動提取和缺陷外形尺寸的智能識別，給出了管道缺陷漏磁檢測的整個步驟和過程。這一切解決了國內管道漏磁檢測的定量化、智能化的難題，補充了國外管道漏磁檢測的不足。
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