The effects of the walk-by motion and sash movement on the containment leakage of an air curtain-isolated fume hood were evaluated and compared with the results of a corresponding conventional fume hood. The air curtain was generated by a narrow planar jet issued from the double-layered sash and a suction slot-flow arranged on the floor of the hood just behind the doorsill. The conventional fum...

PHYLLOSILICATE EXPOSURES, AND VOLCANIC CONSTRUCTS: IMPLICATIONS FOR MAGNETIC SOURCES AND DYNAMO HISTORY L. L. Hood 1 , K. P. Harrison 2 , B. Langlais 3 , R. J. Lillis 4 , F. Poulet 5 , and D. A. Williams 6 , 1 Lunar and Planetary Laboratory, Univ. of Arizona, Tucson, Arizona 85721, [email protected], 2 Southwest Research Institute, Boulder, Colorado 80309, 3 CNRS, UMR 6112, Université de Nant...

Influence of a vent hood at the exit of exhaust flue gas and flue baffles in the firetube on the temperature and flow fields of a gas tank water heater, as well as thestructure and amount of heat transferred to the water tank has been studiednumerically using two-dimensional steady state finite element simulation.Observations show that without a vent hood, there is a downward gas flow in theflu...

A. Asenjo-Garcia,1,2,* J. D. Hood,1,2 D. E. Chang,3 and H. J. Kimble1,2 1Norman Bridge Laboratory of Physics MC12-33, California Institute of Technology, Pasadena, California 91125, USA 2Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, California 91125, USA 3ICFO-Institut de Ciencies Fotoniques, Barcelona Institute of Science and Technology, 08860 Cast...

A novel design of range hood, which was termed the inclined quad-vortex (IQV) range hood, was examined for its flow and containment leakage characteristics under the influence of a plate sweeping across the hood face. A flow visualization technique was used to unveil the flow behavior. Three characteristic flow modes were observed: convex, straight, and concave modes. A tracer gas detection met...

The flow and leakage characteristics of the air-curtain fume hood under high temperature operation (between 100°C and 250°C) were studied. Laser-assisted flow visualization technique was used to reveal the hot plume movements in the cabinet and the critical conditions for the hood-top leakage. The sulfur hexafluoride tracer-gas concentration test method was employed to examine the containment s...

PASSING THROUGH JOVIAN RESONANCES: RELATIVE IMPORTANCE OF BOW SHOCKS AND IMPACT SHOCKS. L. L. Hood 1 , F. J. Ciesla 2 , N. A. Artemieva 3,4 , F. Marzari 5 , and S. J. Weidenschilling 4 , 1 Lunar and Planetary Laboratory, Univ. of Arizona, Tucson, Arizona 85721, [email protected], 2 Dept. of Geophysical Sciences, Univ. of Chicago, Chicago, Illinois 60637, 3 Institute for Dynamics of Geospheres...

BACKGROUND Small volume nebulisers (SVNs) with masks commonly provide aerosol therapy for infants with lung diseases. However, infants and toddlers are often disturbed by and thus reject masks. AIMS To compare the lung deposition efficiency of the "usual" SVN aerosol mask and a prototype hood attached to an SVN. The advantage of the hood is that no mask is needed and medication can readily be...