Imaging velocity measurements along a line through a flowing gas are described. Laser-induced fluorescence from I 2 molecules, used to seed the flow, was utilized. A method of alternating counter-propagating beams from a single-mode dye laser, acting in the wing of the Doppler-shifted molecular absorption profile was used. Some improvements to the technique are also suggested.

Based on information produced by a 200 kHz ultrasonic echo device developed for robotics and other industrial purposes, a method for object identification was developed and is presented in this paper. Interpretation of the echos from the reflecting objects, complexity analysis and information extraction were made by system identification methods such as impulse response analysis and state-space re

This thesis investigates how regulatory instruments, and specifically requirements rules, targeting energy use in existing residential buildings could be made part of the forceful intervention that is required to reduce the use of energy in existing residential buildings. Two approaches to the design of requirement rules are analyzed: a detail-steering approach and a target-oriented approach. The

Environmental concerns such as global warming, the surge of crude oil prices and more stringent emission regulations are demanding the development of internal combustion engines that are highly efficient and low polluting. With classical internal combustion engine concepts such as diesel compression ignition and gasoline spark ignition engines, a trade-off exists between local and global emissions

We consider the problem of optimal static period assignment for multiple independent control tasks executing on the same CPU. Previous works have assumed that the control performance can be expressed as a function of the sampling rate only. Arguing that the control delay has a large impact on the control performance, in this work we include the control delay in the cost function. The delay is esti

Abstract in Undetermined The Polish synchrotron radiation facility Solaris is being built at the Jagiellonian University in Krakow. The project is based on an identical copy of the 1.5 GeV storage ring being concurrently built for the MAX IV project in Lund, Sweden. A general description of the facility is given together with a status of activities. Unique features associated with Solaris are outl

The Faculty of Sciences at Lund University has developed online courses to enhance physical as well as virtual exchange and promote joint delivery of courses among partner universities. The purpose is to increase the flexibility of studies within joint programmes. As part of the development of a blended mode course we have included an online research tool, “Global Research Gateway”.