Consider a radiative cooler of area A at temperature T, whose spectral and angular emissivity is . When the radiative cooler is exposed to a daylight sky, it is subject to both solar irradiance and ...

To demonstrate passive, zero-water loss, fluid cooling using the radiative sky cooling mechanism, we fabricated four identical fluid cooling panels. A schematic and photograph of the panels and their ...

THERE is no better way to ruin a perfectly good day than to make a mistake in the use of your air monitoring instrumentation. Industrial hygienists; military, industrial and public-sector hazmat teams ...

The direct measurement of the mass of airflow has gained some degree of utilization in the engine control community, but the sensors used to measure this parameter have continued to be scrutinized for ...

In this installment of the Innovation of the Month series (read last month’s story here), we explore how Portland, Ore., is testing sensor pilots to help improve air quality monitoring, and then look ...