most of the materials used in the industry of aero-engine components generally consist of titaniumalloys. advanced materials, because of their excellent combination of high specific strength, lightweight and general corrosion resistance. in fact, chemical wear resistance of aero-engine alloyprovides a serious challenge for cutting tool material during the machining process. the reductionin cutt...

15 drafts of the paper. Special thanks to John Ousterhout for providing the modified benchmark and for technical assistance and guidance. Beside additional development, it would be useful to conduct research using the Sprite server. For example, it would be interesting to compare the performance of the Sprite server with the performance of a similar server that uses Mach IPC for remote device a...

This paper describes an implementation of the Mach IPC abstraction on a network. Our implementation, called Mach NetIPC, is done in the context of the x-kernel, which provides a networking subsystem for Mach. The paper motivates the design choices we made, describes the x-kernel protocol graph that implements the design, and reports on the performance of the resulting system.

I f r o b o t s had the c a p a b i l i t y o f s u p p l y i n g ma­ c h i n e s w i t h w o r k p i e c e s w h i c h a r e n o t p r e o r i e n t e d , t h e r e w o u l d b e a s u b s t a n t i a l i n c r e a s e i n t h e num­ b e r o f r o b o t s used i n i n d u s t r y . A s i g n i f i c a n t c o n t r i b u t i o n to t h i s deve lopmen t w o u l d be a method w h i c h y i e l ...

Ernst Mach (1838-1916) was the first to discover an irregular reflection phenomenon of shock waves, as is well known in our community. In fact, this occurred in 1875-three years earlier than usually assumed in the literature [1]. However, it is correct that Mach gave the physical interpretation of this phenomenon in 1878 [2]. Since Mach's discovery of an irregular shock reflection pattern some ...