Magazine

Methods have been developed to identify and track tornado-producing mesoscale convective systems (MCSs) automatically over the continental United States, in order to facilitate systematic studies of these powerful and often destructive events. Several data sources were combined to ensure...

Direct to Earth return links are limited by the size and power of lander devices. A standard alternative is provided by a two-hops return link: a proximity link (from lander to orbiter relay) and a deep-space link (from orbiter relay to Earth). Although direct to Earth return links are limited...

Multiphase turbulent flows are encountered in many practical applications including turbine engines or natural phenomena involving particle dispersion. Numerical computations of multiphase turbulent flows are important because they provide a cheaper alternative to...

A ball valve for process systems has a field-adjustable CV number. The CV number allows the valve to be “tuned” for its system. The ball, controlled by an actuator, is moved 0–90 degrees. An adjustable V-port then adjusts the CV number.

Long-term care facilities are subject to outbreaks of Clostridium difficile (C. diff) bacteria that form a hard shell, enter a vegetative spore state, and are thus able to withstand conventional cleaning. An active ingredient or mechanical/ electronic means must minimize the threat of C. diff and its spores....

A client seeks an insulating coating for a ceramic substrate and a method of applying it. Electrical leakage from one side of the substrate to the other causes damage. A thin coating is preferred for the application, but the critical specification is the relative permittivity of the coating, which should...