large-scale problem 中文意思是什麼
large-scale problem
解釋
大型問題-
Yet, with the development of science and technology, some problems have occurred, such as the problem of scientific morality. this problem becomes increasingly notable. the loss of scientific morality leads to environmental pollution, resource abuse, high - tech crimes, large - scale antipersonnel weapon making, as well as plagiarism
另一方面，科學技術又是一把「雙刃劍」 ，在推動社會進步的同時，也帶來了一些負面效應，導致科學道德問題日益突出，如生態環境污染、資源濫用、高科技犯罪、研製大規模殺傷性武器、剽竊抄襲等，這些現象都屬于科學道德失范現象。 -
This research work on bird striking has a long history and already got plentiful achievemellts in theories and experiments, howevef, still a long way no doubt waits to go for sophisticated research work on it more detailed to apply to airframe engineering quantitatively in combination wth the technical reformation of the birdstrike experimelltal system in our laboratory, this thesis deeply studies and analyses the numerica1 computation and simulation methods to birdstrike dynamic response problem based on finite - elemefit - method ( fem ) numerical emulation and modem large - scale scientfic computation software
本文結合我公司鳥撞實驗體系技術改造項目，應用有限元數值計算模擬技術及現代大型科學計算工具，對鳥體撞擊飛機風擋結構的動力學響應問題進行了系統學習與研究探討，初步掌握了科學計算方法，獲得了計算模擬的實踐經驗，為今後深入應用大型科學計算手段進行撞擊類科學問題的研究以及深入應用於工程實踐奠定了強有力的工作基礎。 -
The experiments show that the performance of our method is similar to the ye - 0. 699 algorithm, which is the best approximate algorithm in polynomial time. but our method can effectively solve the max - bisection problem with a large scale. 2
數值實驗表明，該方法與ye - 0 . 699近似演算法（現有的求解圖的最大二等分問題的最好的多項式時間近似演算法）得到的解的性能幾乎沒有差異 -
According to the low speed of constringency and high complexity of training methods in large scale training, particle swarm algorithm is brought forward to solve the problem
針對在大規模訓練中演算法收斂速度慢、復雜程度高等問題，提出用粒子群演算法求解其中的二次規劃問題的思想。 -
Most damage of construction is due to the crack, so people always consider the beginning of crack as the sign of danger, it always makes people fear. with the development of economy in our country, the dimensions of construction is larger and larger, and the engineering is growing towards large - scale and complexity, because the refresh of material of concrete, the strength of concrete is improved, but a lot of crack appears in the engineering. in recent years, as the further development of economy in our country, the need of steel in the engineering is increscent, but the supply of steel in our country can not satisfy with the need, the price of steel is continuously rising, so it gives us a problem, we must save steel in designing construction and simultanentily controlling the crack of construction. so it gives us a new question on crack study
由於建築物的破壞往往始於裂縫，所以人們一般把裂縫的出現視作危險的徵兆，裂縫使人們產生恐懼感。隨著國家經濟的發展，工程建設規模越來越大，工程結構朝著大型化、復雜化的方向進展，隨著混凝土原材料的不斷更新，混凝土強度等級的不斷提高，在實際工程上出現了大量的裂縫問題。近年來隨著國家經濟的進一步發展，用於工程建設的用鋼量日趨增大，而國家的鋼材供應量不能滿足日趨增大的市場需求量，導致鋼材的價格不斷上漲，這就要求我們在節約鋼材用量的基礎上來設計控制工程中的裂縫問題，這也就給裂縫研究提出新的課題。 -
Presently the domestic and overseas scholars pay more attention to the safety problem of large - scale oilcan section, and the oilcan ' s explosion resist ability is one of pop research problems
摘要目前國內外學者日益重視大型儲油罐區的安全問題，油罐的防爆炸破壞能力成為研究的熱點之一。 -
Its setup thoroughly solved the problem of domestic applied understructure building for the beidou satellite locating and navigational system, paving both for the domestic large - scale use and industrialized development
神州天鴻民用網管系統的建立徹底解決北斗衛星定位導航系統的民用基礎建設問題，為北斗衛星定位導航系統的民用大規模應用和產業化發展奠定了堅實的系統基礎。 -
The problem stems from the pentagon ' s large - scale diversion of usaf airmen into missions normally performed by army soldiers ? the so - called “ in - lieu - of ” taskings
問題產生的原因在於五角大樓大范圍地將美國空軍的官兵投入到通常應該由陸軍士兵履行的任務中? ?因此這也就被人稱之為「代替」任務。 -
The basis of dynamics and simulation includes the iterative flyout angle algorithm to the solutions to lambert problem and battin ' s universal conic section state extrapolate method. then spacecraft ' s orbit roots, maneuver impulse and maneuver time are discussed as the following four part : first of all, the chaser ' s one orbit roots is selected as a variable to simulate its influence to the large scale orbital maneuver. the research reveals fact that the orbit roots both of chaser and target should be close to each other to achieve better maneuver and rendezvous " ability, moreover, the best orbit maneuver and rendezvous occurs when both chaser and target ' s initial phase angle are equal
為了研究了交會機動中追蹤器和目標器的軌道根數、機動時限和機動能耗等因素對交會機動的影響，模擬和分析分為以下四個部分:首先，研究了追蹤器軌道單個參數為變量情況下兩航天器大范圍交會機動問題，研究表明，追蹤器的變化參量與目標器相應的參量在接近的情況下可以獲得良好的交會機動特性，而對于兩航天器軌道共面的情況下，初始相位角相等時則獲得最佳的機動效果。 -
In the main factory building structure of large - scale thermal power plants, due to its great height and large vertical loads ( such as a furnished for arranging coal bucket between interstory, whose mass is too concentrating ), anti - seismic problem is much outstanding
在大型火力發電廠主廠房結構中，由於其高度較大，且豎向荷載較大（如層間布置有煤斗等質量過于集中的設備） ，故抗震問題較為突出。 -
We use the principle of decomposition - coordination of large - scale systems, fuzzy theory and ann technique to solve the real time arterial coordinated control problem
由於採用了相序優化，因此該演算法能更有效地處理隨機性較大、不確定性較強的交通流。 -
To avoid this problem, the authors improved the equipment of lab large - scale direct shear tests and developed a special new one which overcame the disadvantages of normal equipment, made the result more accurate and could be used to analyze the shear surface and dilatability of the mixture
本文對室內大型直剪試驗進行了改進，研發了新型的土石混合料室內大型直剪試驗系統，克服了常規直剪儀存在的主要問題，使得試驗結果更精確、可靠，試驗分析更完善。 -
Abstract : an algorithm is presented for better legal solution in detailed placement of large scale mixed macros and standard cells ic design. due to the limitation of computing complexity, an effective and efficient initial placement is very important for detailed placement. novelty of this algorithm lies in a better solution at initial stage by using network - flow method to satisfy row capacity constraint and the thought of linear placement problem ( lpp ) to resolve overlaps. moreover, divide - and - conquer strategy and other simplified methods are adopted to minimize complexity. experimental results show that the algorithm can get an average of 16 wire length improvement on paflo in reasonable cpu time
文摘:以大規模混合模式布局問題為背景，提出了有效的初始詳細布局演算法.在大規模混合模式布局問題中，由於受到計算復雜性的限制，有效的初始布局演算法顯得非常重要.該演算法採用網路流方法來滿足行容量約束，採用線性布局策略解決單元重疊問題.同時，為解決大規模設計問題，整體上採用分治策略和簡化策略，有效地控制問題的規模，以時間開銷的少量增加換取線長的明顯改善.實驗結果表明該演算法能夠取得比較好的效果，平均比paflo演算法有16的線長改善，而cpu計算時間只有少量增加 -
Vsp is a typical strong np - hard problem, high effective exact algorithm is immposible to it. heuristic algorithm can resolve large - scale problem, but cannot ensure the quality of the resolution
Vsp是一個典型的np -難題，高效的精確演算法存在的可能性不大，啟發式演算法雖能快速求解大型問題，但對解的質量沒有保證。 -
Abstract : a new algorithm applied to the fixed channel assignment in the cellular pattern is proposed. it is based on the theory of evolutionary algorithm. it uses the concept of multiple reuse plan ( mrp ) and solve the problem of large scale through blocking algorithm, and it is a fast 、 efficient and parallel searching method. it has been used in frequency plan system of beijing university of posts and telecommunications. it has been used in several plan project for some city, and been adopted because of its good performance
文摘:提出了一種新的用於蜂窩移動通信中小區規劃的固定頻率分配演算法.它基於遺傳演算法的基本理論，運用多層頻率復用的概念和分塊演算法解決了大規模區域的頻率規劃問題，是一種快速、高效的并行式搜索的頻率分配演算法.該演算法已用於北京郵電大學的頻率規劃軟體系統中，並用它為幾個市區作過規劃，效果滿足要求，且已被采納 -
In order to solve the problem of symbolic representation in geographic concepts and their mutual relationships, the geometrical composition of symbols of large scale topographic maps and the semantic and geometrical relationships among symbols are analyzed, the symbols system of topographic maps is regarded as a two - dimensional graphic language, and the relationship between symbols and geographic concepts is discussed
摘要為了解決地理概念及其相互關系的符號化表達問題，分析了大比例尺地形圖符號的幾何構成及符號間的幾何和語義關系，把地形圖符號系統作為一種二維圖形語言，討論了它和地理概念之間的關系。 -
It is known that end - point driven and static configuration agent based adaptive methods can not apply to analyze extension, dynamic and complexity properties of large - scale video multicast applications. to solve this challenging problem, we develop a hierarchical adaptive architecture for large - scale layered video multicast ( halvm ) based on dynamic self - organized agent. halvm decomposes a large - scale video multicast system into a series of hierarchical sub - systems of small - scale
該體系綜合了代理的動態自組織協議和可伸縮性視頻轉換編碼技術，將復雜的大型視頻組播應用系統的動態自適應問題分解為層次化的小型視頻組播應用子系統，由發送者、接收者和層次化代理分佈完成自適應功能，是一個擴展性能好、管理與控制效率高的自適應解決方案。 -
Reduction crack in the pumping transfer concrete during the megathermal climateit is a diffcult problem. the unit undertaking project of no : 4 pump station for diverting water from the south to the north make a beneficial explore form the design of mix proportionging, control and the concret placing temperature to control the crack extension those experience can be referenced by the unit in charge of large scale pumping station project
摘要高溫季節泵送混凝土裂縫控制的當前工程界一個難題，南水北調淮安四站工程建設中，建設單位科學安排、精心施工，從控制混凝土配合比、入倉溫度等多方面著手，對混凝土裂縫控制技術進行了有益的探索，並取得了預期的效果，為混凝土抗裂技術積累了經驗，對同類型泵站的施工具有重要的參考意義。 -
The parallel processing technology has the potential that it can greatly raise the processing rate and solve the large - scale problem, so it has been an emphasis in the developing of modern digital signal processing
在現代數字信號處理技術中，并行處理由於蘊含著提高處理速度和解決大規模問題的巨大潛力，已經成為這一領域的一個發展重點。 -
The conclusion of some data statistical experiment also confirm that the ga do better in solving small scale problem while the greedy do better in solving large scale problem. four, two example for two different models was provided to prove the modeling and solving method is an effective one. last, a simple irs schedule tool which faces on area target was realized
該工具在模擬預處理、優化模型和求解演算法的基礎上，通過對stk軟體和matlab軟體的介面進行編程，具備了兩個軟體間的數據自動接收與轉換功能，實現了計算機自動執行從模擬預處理到模型求解的完整過程。
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