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.

A procedure for tailoring a blended wing-body con guration to reduce its computed wave drag is described. The method utilizes an iterative algorithm within the framework of rst-order linear theory. Four computed examples are included. In each case, the zero-lift wave drag was reduced without an increase in drag due to lift. Introduction In the initial rough-cut state of supersonic conguration d...

A LL jets have noise generation due to turbulent mixing; such mixing leads to the production of Reynolds stresses, the source term within the Lighthill acoustic analogy [1]. In addition to this source, a jet that possesses coherent, large-scale structures that travel with velocities exceeding the local speed of sound will emit Mach wave radiation, a highly efficient noise production mechanism. ...

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 ...

We illustrate some fundamental alterations of the solar wind – magnetosphere interaction that occur during low Mach number solar wind. We first show that low Mach number solar wind conditions are often characteristic of coronal mass ejections (CME), and magnetic clouds in particular. We then illustrate the pivotal role of the magnetosheath. This comes from the fact that low Mach number solar wi...

A number of recent studies have shown that the upstream Mach number may play a significant role in the energy transfer between the solar wind and the magnetosphere. Magnetohydrodynamic (MHD) simulation results of the magnetosphere-ionosphere system are presented that show the transition from nominal solar wind and interplanetary magnetic field driving to extremely strong driving. One of the pre...

The four Rindler quadrants of a pair of oppositely accelerated frames are identified as a (Lorentzian) Mach-Zehnder interferometer. The Rindler frequency dependence of the interference process is expressed by means of a (Lorentzian) differential cross section. The Rindler frequencies of the waves in the two acccelerated frames can be measured directly by means of a simple inertially moving dete...

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 ...