Barium ions are well suited for tracing out magnetic field lines, because they resonantly scatter sunlight in several visible wavelengths and because ions are constrained to spiral about magnetic field lines while traveling ...

Isoprene and monoterpene emission rates were measured from Sitka spruce (Picea sitchensis Bong.) with a dynamic flow‐through branch enclosure, both in the laboratory and in the field in the United Kingdom. In the laboratory, ...

Physical and numerical fracture network models have been used to analyze the transport of conservative solutes in systems of parallel‐sided fractures. The processes controlling dispersion in fracture systems that are ...

As the appearance of a tracer results from movement along the most direct flow path, the arrival of the maximum concentration is the best index for determining the average water velocity. Antimony 121, cerium 141, chromium ...

We have performed laboratory experiments to study the property of waves along a quasi‐static parallel electric field in a plasma column. The parallel electric field is setup by allowing two different sources of plasmas to ...

The increasing number of laboratory experiments related to the solar wind and the magnetosphere calls for a critical review of the conditions under which a laboratory experiment can provide information about space phenomena. ...

The structure of turbulent‐shear flows above propagating waves is investigated experimentally in a wind and wave facility at the University of Florida. Wave‐induced perturbations and their importance in transferring momentum ...

A fast oxygen atom source was used to investigate the Shuttle glow phenomena in the laboratory. Both room temperature and cooled targets were dosed with NO and then irradiated by 8 km/s oxygen atoms. The observed fluorescence ...

The production of magnetic fields by hypervelocity meteoroid impact has been proposed to explain the presence of paleomagnetic fields in some lunar samples as well as on the lunar surface. Impact‐generated magnetic fields ...

Laboratory measurements of the charge transfer reaction of N2+ (X, ²Σg+, ν≠0) and N2+ (X, ²Σg+, ν=0) with O2 have been carried out with various mixtures of these N2+ species in the energy range from near thermal to 0.12 ...