引言：近些年来，在航空航天工业的发展方面，从主要供应商采购集成系统成为一个明显的趋势（参考文献1）。在这个过程中，梅西埃成为了进行综合起落架系统认证和起落架系统性能...

摘要很长一段时间, Hough变换（HT）技术的应用一直局限于小尺寸的图像， 对于大尺寸的图像,端点检测和线检验变得更加费时。许多以HT为主的线检测方法无法检测线的宽度，本文提出了...

DESCRIPTION The 89C51/89C52/89C54/89C58 contain a non-volatile FLASH program memory that is parallel programmable. For devices that are serial programmable (In System Programmable (ISP) with a boot loader), see the 89C51RC+/89C51RD+ datashe...

Mobile applications in an aging society:Status and trends Abstract Today, many countries, including several European states, the USA, and Japan, are aging; both the number and the percentage of elderly people are increasing.。 To create a...

ABSTRACT The metropolitan landscape includes more than just densely populated center cities; the surrounding countryside also supports important urban ecological and cultural functions. Given this larger context, our common future depends o...

THE CALIFORNIA SCHOOLRESIDENTIAL ARCHITECTURE FRUITFUL YEARS Wright settled on the family farm, near Spring Green, Wisconsin, and in 1911 began to build his often-remodeled home and studio, Taliesin. In Chicago he erected Midway Gardens (19...

DESIGN and ENVIRONMENT Product design is the principal part and kernel of industrial design. Product design gives uses pleasure. A good design can bring hope and create new lifestyle to human. In spscificity,products are only outcomes of fa...

Abstract The furniture design of North Europe can take full advantage of natural and green materials in material;It advocates succinct and generous in using color of material to make furniture natural and intelligential;the sculpt can be de...

Exploring the sources of innovation of the firm has central in the economics of innovation research. While both internal and external sources of innovation have been addressed, RD activity is regarded as the main internal source of innovati...

摘要：以40Cr为具体对象，通过试验工作研究中碳钢在淬火和回火后的冷挤压变形行为。分析了变形程度的影响（10%50%），模具锥角（90˚120˚），淬火和回火后的硬度（HRC2129）和成形载...