約化波長 的英文怎麼說
中文拼音 [yāohuàbōzhǎng]
約化波長
英文
reduced wave length-
The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available. these results pointed out the direction to develop rams ". according to the radar - absorbing model, the optimized design of rams with thin - layer, light - weight, broadband and strong - absorbing is available by the simple genetic algorithms, which can effectively conduct the research work of rams to the detail. small but completely, the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up, the object function has been constructed which conform to the involved goals, the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage, the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness. when decoding, the variable restricting conditions of thickness are dynamically traced, so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient. similary, of thickness and absorber - volume - percentage, of light - weight multiple - layer multiple - ingredient. also, the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function
作為遺傳演算法的具體實施：根據本實驗室近來研製的吸波材料，建立了吸波材料的相關數據庫；構造了能真實體現「薄、輕、寬、強」優化目標的目標函數；根據材料的實際數量以及塗層厚度精度要求、吸收劑體積分數精度要求，建立了能動態擴展相應碼長的自適應編碼方法；首創了通過動態跟蹤變量的約束條件來控制塗層總厚度的解碼技術，以此實現了在不弱化寬頻、高強的吸波性能目標的同時，兼顧到薄層、輕質的使用性能要求；在解碼時通過動態跟蹤厚度變量的約束條件，實現了多層單組分吸波塗層對重量輕的要求；通過動態跟蹤厚度變量的約束條件和吸收劑體積分數的約束條件，實現了多層多組分吸波塗層對重量輕的要求；使用權重系數變化法，實現了吸波塗層的分頻段吸波性能要求。Conversation by overhead line, 900 miles - new york to chicago. first commercial strowger installation ; laporte, indiana, usa. used switcher with 100 line disc - type banks
全長900英里，從紐約到芝加哥的架空電話線開通。第一個商業化的史端喬系統在美國印第安納州拉波特安裝。使用的交換機帶有100個線路排線架。It consists of several parts as follows : in the first part, after an introduction of basic theory and history of filter banks, an analysis of lattice structure filter banks is given. the requirements of perfect reconstruction and linear phase are discussed and some constrains of filter length and symmetry property are analyzed in details. besides, relative designing practice and examples are given
論文的工作主要有如下幾個部分：第一部分，我們介紹了子帶濾波器組的基本理論和發展情況，研究了格型結構濾波器組，討論了其完全重構條件和實現線性相位的要求，並詳細分析了在實現完全重構線性相位格型濾波器組時濾波器的長度和對稱性約束，討論了優化設計的方法，並給出了例子。The essential details of the molecular structure are encapsulated in the way that the frequency of a sound wave depends on its wavelength
分子結構實質上的細節，可以化約在聲波的頻率和波長之間的相依關系中。Furthermore, it is insure that the carrier pahse measurement data does not have cycle slips in gps based attitude determination system, using phase rate prediction algorithm and baseline length constraint information algorithm, the cycle slips can be detected and corrected successfully, which markedly reduce the initialization numbers of attitude determination system
此外，在gps姿態測量系統中，必須保證載波相位觀測數據中無載波相位周跳，本文提出的多普勒預測演算法和基線長度約束相結合的方法能有效的檢測和修正載波相位整周模糊值固定前和固定后的周跳問題，減少了姿態測量系統重新初始化的次數。Then detailed, analyze the agriculture public fiscal expenditure scale through the years, made a conclusion that the total amounts of agriculture fiscal expenditure increase continuously, however the scale descends continuously. comparing with other province, henan agriculture public finance expending is very low in scale. inquiry into agriculture public finance expending scale descent, and predict future 10 - year agriculture public finance expenditure total amount ; make use of the quantitative analysis method analysis henan province agriculture public finance expenditure benefit, include the agriculture public finance expenditure to the contribution of agriculture increase, the flexibility coefficient of the agriculture public fiscal expenditure, agriculture public fiscal expenditure construction performance etc, and analyze to make the factor that invite performance ' s develop ; finally, on the above analytic foundation, put forward public finance frame bottom agriculture public fiscal expenditure funds management mode
本文首先在導言中闡述了國內外關于農業財政支出的相關理論，為后續的研究提供理論基礎和分析的方法論；然後詳細、具體地分析歷年來河南農業財政支出規模變動情況，得出農業財政支出總量雖不斷增長，支出規模卻在波動中不斷下降、與其它省份相比河南農業財政支出規模偏低的結論，探討了河南農業財政支出規模下降的原因，並預測未來十年河南農業財政支出總量；接著運用定量的分析方法分析河南農業財政支出效益情況，包括農業財政支出對農業增長的貢獻，農業財政支出的彈性系數變化，農業財政支出結構效益等，並分析制約效益發揮的因素? ?農業財政支出資金管理不善；最後，在上述分析的基礎上，提出公共財政框架下農業財政支出資金全過程管理模式，具體包括：農業財政支出投放體系、支農資金管理體系、支農項目管理體系、評估體系、決策體系以及監督體系等六大體系。Then the result of certain k - shortest path algorithm is introduced as a set to be chosen by both the simulated anneal algorithm and heuristic algorithm, concerning the end - to - end traffic requirement and restriction on link bandwidth. afterwards, the effect of the value k on the outcome of the simulated anneal algorithm is researched. the network resource is allocated, while the study of link protection problem on traffic routing is introduced and two types of protection, shared protection and dedicated
首先考察實際的網路模型，根據業務需求，引入k路由演算法的結果作為模擬退火演算法和啟發性演算法備選路由集合，在鏈路帶寬有限的約束下對網路資源進行分配，同時引入業務路由的通路保護問題的研究，實現了共享保護和專用保護兩種通路保護方式;針對全波長轉換網路和無波長轉換能力網路，根據為所有連接請求所分配的總資源最少和滿足請求的業務數目最多兩種優化目標對資源分配進行優化，研究了備選路由集大小對模擬退火演算法結果的影響;對模擬退火演算法與啟發性演算法的Because of the anatase ' s broad eg ( 3. 2ev ), the absorption thresholds correspond to 380nm for the tio2. consequently, only the ultraviolet fraction of the solar irradiation can be active in the photoexcitation processes using pure tio2 solid. the high recombination rate of charge carrier and low efficiency of quantization are also the deficiencies of pure tio2
由於tio _ 2的帶隙較寬（約3 . 2ev ） ，半導體的光吸收波長范圍窄（主要在紫外區） ，故其太陽能的利用效率低，且還存在半導體載流子的復合率高，量子化效率低等缺陷。Given the multicast request, the optimal object of the problem is to minimize total number of conversions required. in wavelength assignment, we should consider the requirements that the number of needed converters along the path from multicast source node to any member cannot be larger than specified value because of the signal distortion introduced by wavelength converters. at last, we present several dynamic programming to get the exact optimal wavelength assignment scheme under session blocking policy and destination blocking policy
考慮到波長轉換器引入的信號失真和噪聲，引進了失真約束，即要求從組播源結點到每個組播成員的路徑上使用的波長轉換器數目均在指定的范圍之內;對于給定的組播需求，優化目標是在滿足失真約束的基礎上使整個組播樹上使用波長轉換器的數目最少;並使用動態規劃給出了sbp和dbp兩種連接建立策略下精確的最優波長分配演算法。分享友人