The complex variable boundary-element method is routinely used to determine the complex potential, h 1⁄4 / þ iw, at any position, z 1⁄4 xþ iy, internal to the flow domain. We reverse this mapping by exactly determining the complex position for specified complex potentials––in effect solving for zðhÞ instead of hðzÞ. Direct calculation of the physical location, 1⁄2x; y , of potential, 1⁄2/;w , i...

The SPACEBAR program allows the direct design and analysis of mechanisms right at the terminal screen. All variables including linkage geometry, stiffnesa, and applied loading conditions can be input and/or changed from the terminal. All data can be described and displayed in three dimensions. All mechanism configurations can be cycled through their range of travel and viewed in their various g...

We investigate apparent internal structure of kiloparsec scale jets of AGNs arising from the energy dependent cooling of accelerated electrons and light travel time effect for relativistically moving sources. Using a simple cylindrical shell model, we find that the offsets between the peaks of X-ray, optical and radio brightness distributions observed for many cases are basically explained with...

In this report we describe a case of typhoid fever in a Czech patient with history of travel to India and discuss antibiotic treatment failure which led to the relapse of fever. Case report Travel history A previously healthy 31-year-old man from the Czech Republic visited India from 2 October to 28 November 2008. Before leaving the Czech Republic he had received neither vaccination (travellers...

A robot driver system that controls passenger vehicles and trucks in Automatic Durability Road tests is presented. The robot controls the vehicle’s speed, gears and steering according to a durability test protocol. Durability testing can be harsh on test drivers, while requiring consistent driving patterns. Automating the test by using a robot driver eliminates the need for an on-board driver a...

This article aims at identifying the factors involved in affecting the travel demand to Iran. The hypothesis of the research specifies the variable of “domestic social unrest and insecurity” as the most significant obstacle that stands against an expansion of the demand for travel to Iran. To test the above hypothesis, first several demand models that have been proposed to study demand for tour...