College crisis intervention: an initiative to develop regional campus Critical Incident Stress Management teams.

This article presents a statewide initiative that was undertaken to develop regional Critical Incident Stress Management (CISM) teams among colleges and universities within a northeastern state. In light of the unique needs and culture of institutions of higher education, this initiative was intended to improve each member college or university's capacity to respond comprehensively and effectively to critical incidents that affect its community. A step-by-step description of the implementation of the initiative is presented as well as discussion of what was learned through the process and future directions.

Optical fiber measurements of particle concentration in dense suspensions: calibration and simulation.

A fiber-optic sensor that measures the particle volume fraction in dense suspensions is calibrated against a quantitative capacitance probe. For homogeneous, dense, random suspensions of smooth, monodisperse, transparent dielectric spheres, the calibration is simulated by using a ray-tracing Monte Carlo algorithm that predicts systematic uncertainties of the sensor's output, the extent of its measurement volume, and the effects of changing its optical properties. The simulation shows that the output and accuracy of the sensor increase with a decreasing sphere diameter and with an increasing N.

Optical fiber measurements of particle velocity using laser-induced phosphorescence.

An optical fiber anemometer that uses laser-induced phosphorescence to measure particle time of flight in dense gas-solid suspensions is described. The anemometer is tested using a spinning disk coated with a phosphor having a persistent afterglow. The diagnostic technique is illustrated by measuring the velocity of free-falling particles coated with the same phosphor.