paper bell 中文意思是什麼
paper bell
解釋
紙鐘-
The theoretic formulas imply that mimo system can make use of multipath fading in full of scatter enviorment and its channel capcacity is in proportion to the transmt or receive antenna. 2. paper mainly explains the basic principle of bell laboratory layered space - time ( blast ) architecture
2 .論文重點闡述了實現mimo系統中空間復用技術的貝爾實驗室空時分層（ blast ）結構的基本原理， blast結構作為實現mimo系統巨大容量的一種有效的手段，其核心是基於排序的串列干擾消除（ osic : orderingsic ）檢測演算法。 -
Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。 -
Abstract : in this paper, the distinct element method is adopted to study the force and the motion of granular burden from a kinematic view point. the numerical model of bell - less top charging is established. the charging process and burden surface profile have been imitated
文摘:從動力學角度，採用離散單元法研究爐料顆粒的受力和運動，建立高爐無鐘爐頂布料數值計算模型，模擬無鐘爐頂布料過程和料面形狀。 -
Finally, the paper expounds the software design of bell - type optimized scheduling, and presents generic designing approach
最後本文系統地介紹了罩式爐優化排產的軟體設計，提出了罩式爐退火調度通用軟體的設計方法。 -
But the variation of its aerodynamic forces will induce flapping motion and produce the cyclic pitch on the main rotor blades by the bell mixing mechanism. in order to study the effect of bell - hiller stabilizer bar on helicopter stability and control, this paper first analyze the function and the principles, give the flapping equation and a flight dynamic model with bell - hiller stabilizer bar. and then works over the stability and control of uav r - 50 in hover and cruise condition, and analyzed the influence from parameters of the bar to it
為了深入研究希勒伺服旋翼對直升機穩定性和操縱性的影響，本文首先分析了希勒伺服旋翼的功能和工作原理，推導了伺服旋翼的揮舞運動方程，建立了帶有希勒伺服旋翼直升機的飛行動力學模型，然後以yamahar - 50無人直升機為例，分析該直升機在懸停和前飛時的平衡、穩定性和操縱性，在此基礎上進一步研究希勒伺服旋翼設計參數變化對直升機穩定性和操縱性的影響。 -
The paper investigats modeling and optimizing problems of parallel machine scheduling with resource - constrained and multi - step working procedure, acting bell - type annealing of shanghai baosteel yichang sheet lt. co. as practical background, designs and develops scheduling production system which is optimized according to practical demand of annealing workshop
本文以上海寶鋼益昌薄板有限公司罩式爐退火過程為背景，研究了資源受限多步工序并行機器調度問題的建模和優化問題，結合退火爐車間生產調度的實際需要，進行了退火爐優化排產系統的設計和開發。 -
Thirdly, integrating bell - type scheduling investigation of domestic and overseas documents, the paper defines optimized scheduling production of bell - type annealing process as the problem of parallel machine scheduling with resource - constrained and multi - step working procedure, whose optimized function of objective function is given also. furthermore, the author constructs bell - type optimized scheduling model by means of the way combing discrete event simulation with algorithm of intelligent optimization
本文在綜合國內外對于罩式爐調度研究的基礎上，將罩式爐退火過程優化排產定義為資源受限多步工序并行機器調度問題，並定義了優化目標評價函數；將面向對象的離散事件建模模擬方法和智能優化方法相結合建立了退火爐優化排產模型。
分享友人