The electromagnets would require only an initial power input to start the current in their coils . 這種電磁鐵只要饋入一個初始功率就能起動線圈里的電流。
And a hybrid crossover methodand a tail prevail mutaion principie are proposed . furthermore , the production method of firstpopulation according to initial power flow mode and the simplification of control vedablesbased the conception of power plantistation are discussed also 在此基礎(chǔ)上,對遺傳算法的交叉算子和變異算子分別進行了改進,提出了混合交叉算子和編碼低位占優(yōu)的變異原則;討論了依據(jù)典型方式產(chǎn)生初始解群體的原則。
This paper expounds the present situation of the development of the real estates on the borderlands of cities in china and foreign counties , analyzes on the positive and negative influences of the real estate on the economy , and points out that the formation of the central district is the initial power of the transportation 闡述了國內(nèi)外城市邊緣地帶開發(fā)房地產(chǎn)的現(xiàn)狀,分析了房地產(chǎn)對經(jīng)濟的正面作用和負面影響,提出中心區(qū)是形成動遷的最初動力。
The history process has stepped into the 21st century , the world economy is going into an economic and a knowledgeable times with the characteristics of knowledge , information and globalization . to grasp the necessary knowledge and use them , to develop and manage human resource meanwhile are becoming the initial powers to push forward the social progress and the important backgrounds for a corporation to explore markets and seek for development 歷史的車輪跨入二十一世紀,世界經(jīng)濟已經(jīng)進入知識化、信息化、全球一體化為主要特征的知識經(jīng)濟時代,知識的掌握與運用,人力資源的開發(fā)與管理已經(jīng)成為推動社會向前發(fā)展的原動力,更是企業(yè)勇闖市場,圖謀發(fā)展的重要后盾。
It is show that the initial power and the incident angle of the beam are important factors of formation and stable propagation of soliton . when the initial power matches with the beam width , a balance of diffraction and nonlinearity effects in propagation will be maintained and therefore the stable nonlinear lattice soliton comes into being 研究發(fā)現(xiàn):光束的初始功率和入射角度是格子孤子形成和穩(wěn)定傳輸?shù)闹匾蛩?當光束的初始功率與光束寬度滿足一定條件時,可以維持傳輸過程中衍射和非線性效應(yīng)的精確平衡,從而形成穩(wěn)定的三階非線性格子孤子。