An investigation into in-cylinder swirl and tumble flow characteristics with reduced maximum valve lifts (MVL) is presented. The experimental work was conducted in the modified four-valve optical spark-ignition (SI) test engine with three different MVL. Particle image velocimetry (PIV) was employed for measuring in-cylinder air motion and measurement results were analyzed for examining flow fie...

Mycoplasma agalactia was cultured in PPLO broth medium supplemented with sterilized normal horse serum in fermentor. Cultivation process continued at 37 ºC under aerobic conditions and growth was terminated after 26 hours cultured period with 2.2×109 Mycoplasma per ml. Samples were taken at different stages of growth. Culture was inactivated with 0.04 %v/v formaldehyde and the vaccine was adjuv...

Approximately 2,000 zero-lift, double-theodolite pilot balloon observations made at Oak Ridge, Tenn., are analyzed in order to study low level air trajectories over hilly terrain. Paths of air parcels are found to fall into characteristic groups, depending on wind speed and stability conditions. Eddy patterns for these groups are determined, and these are found to resemble similar patterns dete...

M. K. Popoviæ, C. Wulfes, and R. K. Bajpai Department of Biotechnology, FB-V, Technische Fachhochschule – Berlin, Seestraße 64, 13347 Berlin, Germany; Tel: 49 30 45043906; Fax: 49 30 45043959; Email: [email protected] *Department of Chemical Engineering, University of Louisiana – Lafayette, PO Box 44130, Lafayette, LA 70504, USA: Tel: 1 337 4825910; Fax: 1 337 482 1220; Email: bajpair@louis...

Configurations derived from classical concepts of waverider and Busemann biplane have great potential of use in aerodynamic design of highspeed vehicles with air-breathing jet engines due to their ability to provide both high lift-to drag ratio and intense preliminary compression of the flow before air intakes. The issues of conceptual design of highspeed vehicles based on the use of waverider ...