Three-Dimensional Planning of Arrival and Departure Route Network Based on Improved Ant-Colony Algorithm

In order to improve safety,economy efficiency and design automation degree of air route in terminal airspace,Three-dimensional(3D)planning of routes network is investigated.A waypoint probability search method is proposed to optimize individual flight path.Through updating horizontal pheromones by negative feedback factors,an antcolony algorithm of path searching in 3Dterminal airspace is implemented.The principle of optimization sequence of arrival and departure routes is analyzed.Each route is optimized successively,and the overall optimization of the whole route network is finally achieved.A case study shows that it takes about 63 sto optimize 8arrival and departure routes,and the operation efficiency can be significantly improved with desirable safety and economy.

FY-2C Working Normally Beyond Design Lifetime

The FY-2C meteorological satellite had been working well for 8 years as of October 19, 2012. Though the satellite was originally designed to work for 3 years, it still operates steadily. As the nation's first operational first-generation geo- stationary meteorological satellite, FY-2C works together with the following satellites FY-2D, FY-2E and FY-2F, in a operational mode of two operational plus two backup ones. FY-2C, FY-2D and FY-2E were the second batch satellites of FY-2 series

OPTIMUM DESIGN OF HIGH-SPEED RAILWAY LOCOMOTIVE TRACTION GEAR

On the basis of deep investigation of locomotive traction gears manufactured at home and abroad , a variety of measures are putted forward to improve the driving load-bearing capacity and working life of our country's high-speed locomotive traction gears. The measures include the fol- lowing five aspects : optimally selecting the material and heat treatment process , optimally designing the tooth profile . reasonably choosing the manufacture accuracy and technique , optimally choosing the lubricant and the way of lubrication and seal , improving the dynamic feature of the gearing. In the respect of the tooth profile , a hob with optimal cutter angles is designed to make root thickness on the dangerous section as large as possible and the stress concentration as small as possible. Ad- dendum modification coefficient is optimized to minimize the maximum flash temperature in the course of meshing. Finally . finite element analysis method is used to calculate the deformation and the stress of teeth accurately. And on this basis , optimal profile correction and axial modification have been designed with regard to the start , continuious running and high speed travel of the loco- motive .

So Man-yee's Design Work

SO Man-yee started to learn Western painting in1971. In 1973 she graduated from the Linhai ArtSchool in Hong Kong after spending three yearsstudying commercial design. After leaving the schoolshe started work with advertisement agencies. Thatexperience prepared her for further development inthe design field. So founded her own design company in 1976 withher friend Han Binhua. Apart from this project, So isalso involved in art education. So is a member of theboard of the Hong Kong Zhengxing Design School,executive member of the Association of Designers inHong Kong, member of the board of Hong KongArtists, chief director of the board of Hong Kong’sKinggraphic Co. Ltd., and also chairperson of theHong Kong Women Painters Association. A famous watercolorist in Hong Kong, So has heldseveral eye-catching exhibitions there. Her exhibitionsinclude the one-woman show entitled "So Man-yee’sRhythm of Watercolors" held in 1987 at the HongKong Art Center. In 1996 a grand exhibition of HongKong artists hosted by