時間擴展效應 的英文怎麼說

中文拼音 [shíjiānkuòzhǎnxiàoyīng]
時間擴展效應 英文
time dispersion
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 效應 : [物理學] effect; action; influence
  1. In this section, applying the method, from abstract to specific and from history to present, it analyzes the operation mechanism of urbanization economy affected by market mechanism ; puts forward four theories of urbanization economy from economic perspective, including agriculture surplus and comparison advantage ; non - agricultural industry ; agglomeration economy and spillover effect, on this basis of the theories, it, on one hand, analyzes two kinds of internal mechanism in the chronologic operation of urbanization economies : increasing mechanism of urbanization economies in urban output industry ; and changing mechanism from specialization to integration, which are the representations of the evolution of " mart " development ; on the other hand, it analyzes two internal mechanism of dimensional operation of urbanization economy : internal spatial enlargement mechanism of urbanization economies from monocentric city to multi - center city, and external spatial enhancement mechanism which represents city - regionalization and city - chain connection, the later two mechanism represent the evolution of " polis " development

    這一部分，按照由抽象到具體和由歷史到現代的研究方法，分析了市場機製作用下的城市化經濟運行機理，從經濟學角度提出了農業剩餘與比較優勢、非農產業、聚集經濟、外溢效應四大城市化經濟定理；在此基礎上，一方面分析了城市化經濟運行沿時間增長的兩個內在內容提要機制:城市輸出產業的城市化經濟增長機制和從專業化到綜合化的城市性質變遷機制，它們主要表現為「市」發展的延續;另一方面分析了城市化經濟運行沿空間增長的兩個內在機制:從單中心到多中心的城市化經濟運行的內部空間擴展機理和表現為城市區域化、城市連綿體的城市化經濟運行的外部空間擴展機理，它們主要表現為「城」發展的延續。
  2. The mode and frame can settle the questions of traditional integration such as tight coupling between applications, lack of expansibility and faintish flexibility, and have better commonability and compatibility at the same time. it is relatively low cost to realize, can satisfy integration of the distributing type

    該集成模式和框架能夠有效的解決傳統的集成方法所存在的如應用間的緊耦合，缺乏可擴展性和靈活性等問題，同時具有較好的通用性和兼容性，實現成本較低，能夠更好的滿足分散式集成等特點。
  3. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  4. Firstly, through the analyses on land remising market, this paper finds that the spatial structure of land remising is evolving over time, its effect factor covering location, market and policy factors, its formation mechanism including location tendency, centralization and decentralization mechanism, spatial adjacency effect, and market mechanism

    首先，通過對北京市土地出讓市場發展現狀進行分析，發現土地出讓的空間分佈是隨時間推移而不斷演化的，影響土地出讓空間分佈的因素主要有：區位因素、市場因素和政策因素，形成機制有區位指向、集聚和擴散機制、空間近鄰效應和市場機制。
  5. The main purpose of this paper is to study crack growth rate of a class of nonlinear viscoelastic materials under the condition of constant load and small - strain. in this paper : the new test program is raised by referencing the existing test programs and by our trial and error ; in the new test program, facilities involved in the nonlinear viscoelastic crack tests are relatively few, the test process is relatively simple and the data obtained from the experiments are credible. on this basic, the calculation of j integral of nonlinear viscoelastic double cantilever beams specimens and the parameter of fracture work of corresponding nonlinear viscoelasticity are derived

    具體成果包括： 1 、證實了雙懸臂梁試件用於非線性粘彈性裂紋擴展實驗研究的優點：雙懸臂梁試件在實驗中能觀測到的擴展過程持續時間比較長，在計算j積分時，計算方法簡單； 2 、得到了改性聚丙烯材料用於非線性粘彈性裂紋擴展實驗的兩種有效的試件構形和相應的試件尺寸；採用不斷改善夾具的方法使得加載穩定； 3 、經過連續四個多月的時間得到了一組有用的實驗數據； 4 、得到了裂紋長度與時間的關系、裂紋擴展速度與時間的關系、裂紋擴展速度與裂紋長度的關系。
  6. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  7. 11 luo x, zhang c, jennings n r. a hybrid model for sharing information between fuzzy, uncertain and default reasoning models in multi - agent systems. international journal of uncertainty, fuzziness and knowledge - based systems, 2002, 10 : 401 - 450. 12 hindriks k v, de boer f s, der hoek w van, meyer j j c. formal semantics of an abstract agent programming language

    Agent行動選擇和目標更新不僅依賴于agent的不確定信念，而且依賴于agent在實施這些行動的時候的得失效應值在此，把點概率的效應理論擴展到了區間概率的情況，並借用模糊數學中區間數的方法，給出了比較區間最大期望效應的方法再次，關于實用推理的不確定性的繁殖，使用了基於預設決策理論的預設邏輯方法。
  8. However, the die attach layer delaminated after 500 cycles and pcb cracked in the underfilled samples after long time cycling. c - sam is employed to investigate the delamination in the underfilled samples. highly concentrated stress - strain induced by the cte mismatch between the bga component and the pcb board, coarsened grain and two kinds of intermetallic compounds ( nisn / nisns ) which formed during reflow and thermal cycle and their impact on the reliability of solder joints are discussed in this paper

    充膠樣品粗化尤為嚴重； ? ni - sn金屬間化合物包括兩層：其中，靠近ni焊盤的那層比較平整，同時， eds結果分析表明其化學式近似為nisn ，而靠近焊料的那層呈板條狀，化學式近似為nisn _ 3 ，文獻表明其為亞穩相； ?充膠使得樣品最大應力范圍降了接近一個數量級並降低了dnp的作用，同時，器件失效模式變為晶元粘接層分層； ? c - sam結果表明本論文採用的充膠樣品，晶元粘接層分層起始於500周左右，而經過2700周循環的樣品，分層幾乎擴展到整個界面。
  9. Including the testing of the validity of sensor data and the adapting of the q matrix in reai - time, the kalman filter is researched to improve the real - time, precision and robust of navigation system. with this method, the disturbances resulted from the many uncertainties in non - structure agricultural environment can be overcome, the movement of road line can be followed in the image space so that the technology of visual window can be used, the current measured state of wheeled mobile robot can be substituted by the predicted state to increase the real - time of control system

    包括傳感器數據有效性檢驗、 q陣自適應實時調整等內容，詳細地研究了利用擴展卡爾曼濾波理論改善導航系統實時性、精確性和可靠性的具體方法，以克服農田非結構化自然環境里存在的多種不確定因素給導航系統造成的干擾，跟蹤圖像空間中路徑目標的運動而便於有效地利用視覺窗口技術，提供輪式機器人狀態的預測值代替實測值進行導航控制來改善控制系統的實時性等
  10. For ecological system, the state of the system in a moment will be influenced by the state in history as well as by the relation of species at that moment, say, the influence of time delay, and so if we consider it, we will be more precisely in discribe the change and development of the system ; on the other hand, the population of species may be distributed in different patchs because of the influences of envionment or artificial element, this made us had to consider not only the time element but also the spatial element, said the diffusion of species

    對于生態系統而言，系統在某時刻的狀態（即種群密度的增長率）不僅受到當時各種群間關系的影響，也應當受到歷史的制約，也即是時滯效應的影響，因而在生態系統中考慮時滯因素，將能更正確的描述系統的變化于發展；另一方面，由於環境或人為因素的影響而使種群的分佈呈現一定的區域性，這就使得我們在對其進行研究時不僅要考慮時間因素，更應該考慮空間因素，即種群間的擴散效應。
  11. Besides, it is not fit with the precise adjustment and is difficult to conform the place. a new adaptive genetic algorithm with bp algorithm to optimize weight is backed up. the algorithm which combines the merits of the global convergence of genetic algorithm with fast local researching of bp algorithm not only intensifies the gradual convergence and evolution ability but also advance the speed of convergence, precision of training and generalization

    針對傳統遺傳演算法的搜索過程帶有一定的盲目性，其收斂特性不穩定且收斂速度緩慢，特別是在系統規模較大時，優化效果的明顯改善往往需要相當長的時間，而且不適合候選解的精調，難以確定解的確切位置，提出一種新型自適應性遺傳演算法，並在此基礎上，用bp演算法優化前向神經網路權值，綜合了兩種演算法的優點，即遺傳演算法的全局收斂性和bp演算法局部搜索的快速性，強化了遺傳演算法的漸進收斂和進化能力，全面改善了演算法的收斂性，提高了收斂速度及訓練精度，也擴展了泛化能力。
  12. Its main characteristics include the following parts : ( 1 ) the trait of matching of network, as it manages the information of peers by grouping according to their location in the internet ; ( 2 ) easy to implement, as it distributes the video data according to the need of peers, and does not have to maintain a complex global structure ; ( 3 ) robust and resilient, as it can adapt the complex and dynamic environment of network very well ; ( 4 ) good expansibility, as it has better performance with the increase of users ; ( 5 ) high utilizing of bandwidth, as it can control the peers according to the change of bandwidth of them and make good use of their bandwidth ; ( 6 ) low delay of peer to peer, as it considers the delay among peers sufficiently besides the bandwidth, and makes the delay of peer to peer is low

    該視頻流媒體網路模型在網路帶寬效率、延遲和可靠性之間做出了很好的平衡，它的主要特點有: （ 1 ）網路匹配特性，使用終端用戶的網路位置信息來對節點進行分組管理，對節點間的鄰近度進行優化; （ 2 ）易於實現，根據數據的流向來分發視頻流媒體數據，不需要維護復雜的數據結構; （ 3 ）適應性強，能很好的適應復雜變化的網路環境; （ 4 ）擴展性好，加入視頻流媒體網路中的用戶越多，性能越好; （ 5 ）帶寬利用率高，及時對每個節點的帶寬變化情況進行控制，充分利用空閑帶寬; （ 6 ）端對端延遲小，通過在帶寬和延遲之間達到平衡使得端對端延遲減小。
  13. Universal serial bus ( usb ) is new technology about interface in computer application usb has been used widely since the windows operation system supported the usb interface in computer the major goal of usb was to define an external expansion bus which makes adding peripherals to a pc as easy as hooking up a telephone to a wall jack the program ' s driving goals were ease - of - use and low cost these were enabled with an external expansion architecture universal serial bus （ usb ） is one of the most important developments in pc peripheral interconnect technology since the introduction of serial and parallel ports in the early 1980 ' s the benefits of usb ， such as ease of use ， plug and play ， high performance ， and reduced overall system cost ， are just a few of the reasons this technology has gone from specification to product development in less than 2 years

    通用串列總線（ usb ）是應用在pc領域中的新型介面技術，自從windons98操作系統全面對usb介面支持后， usb逐漸進入實用階段。利用usb可以實現較傳統方式更有效、更經濟、更多擴展的pc外設與pc相連。通用串列總線（ usb ）作為一種新興的計算機外設總線標準，從標準的出現到大規模的應用，僅用了短短幾年的時間，這一切都得益於它易用、真正的熱插拔、高性能和系統造價低廉等憂點。
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