A viability analysis of a secure VoIP and instant messaging system on a Pocket PC platform

We propose a secure full-duplex VoIP and instant messaging system on a Pocket PC platform, allowing for session key transport using a public-key protocol and encrypted text or voice communication using a private-key algorithm. The full-duplex VoIP scheme presents good performance for long duration communication over LAN networks.

Efficient tool path computation using multi-core GPUs

Tool path generation is one of the most complex problems in Computer Aided Manufacturing. Although some efficient strategies have been developed, most of them are only useful for standard machining. However, the algorithms used for tool path computation demand a higher computation performance, which makes the implementation on many existing systems very slow or even impractical. Hardware acceleration is an incremental solution that can be cleanly added to these systems while keeping everything else intact. It is completely transparent to the user. The cost is much lower and the development time is much shorter than replacing the computers by faster ones. This paper presents an optimisation that uses a specific graphic hardware approach using the power of multi-core Graphic Processing Units (GPUs) in order to improve the tool path computation. This improvement is applied on a highly accurate and robust tool path generation algorithm. The paper presents, as a case of study, a fully implemented algorithm used for turning lathe machining of shoe lasts. A comparative study will show the gain achieved in terms of total computing time. The execution time is almost two orders of magnitude faster than modern PCs.

Mr. Monis's computation about printing his Hebrew Grammar, [ca. 1734]

A one-page handwritten computation by Judah Monis for printing the Hebrew Grammar and binding it in sheep and calf skins. The document was written on one folio-sized leaf that is torn in two pieces.

Flora historica : or, The three seasons of the British parterre historically and botanically treated : with observations on planting, to secure a regular succession of flowers from the commencement of spring to the end of autumn /

1

Drainage channel and waterway; a history of the effort to secure an effective and harmless method for the disposal of the sewage of the city of Chicago, and to create a navigable channel between Lake Michigan and the Missippi River,

Mode of access: Internet.

Community justice : striving for safe, secure, and just communities /

"March 1996."

Suggestions for the speedy and secure conveyance of our reinforcements to Canada.

Contains two letters: The first letter was addressed to Viscount Melville and dated London 16th December, 1826; and the second letter for private distribution was addressed to Captain Sir W. Symonds, dated London, 21st April, 1838 under title: A second letter on the conveyance of troops to Canada / by Capt. Bowles.

History of the St. Mary's Falls ship canal, showing the early efforts which were made to secure its construction, with a record of the business of the canal from its opening until the present time ...

Mode of access: Internet.

Multiple precision computation of Legendre functions.

"C00-1469-0167."

Speeding up computation in two-dimensional iterative arrays /

"UILU-ENG 80 1720."-- Cover, p. 1.

Sociopathic knowledge bases : correct knowledge can be harmful even given unlimited computation /

"College of Engineering, UILU-ENG-89-1757."