Results 191 to 200 of about 66,125 (245)

Investigation of the Partial Discharge Inception and Flashover With IEC‐Based Comparative Tracking Index Electrodes and Comparison With Homogeneous and Inhomogeneous Electric Fields at Varying Pressures for Aerospace Applications

open access: yesHigh Voltage, EarlyView.
ABSTRACT For designing aeronautical components, the creepage distance is usually estimated by considering the pollution level and the dielectric material group as defined by the standard IEC 60664‐1. The material group is expressed by the comparative tracking index (CTI) performed at atmospheric pressure following the standard IEC 60112.
Somya Anand   +4 more
wiley   +1 more source

Apex predators exploit advantageous snow conditions across hunting modes

open access: yesJournal of Animal Ecology, EarlyView.
Advantageous snow conditions—in terms of snow depth and density—are among the most important features of the winter landscape for two apex predators, regardless of hunting strategy. In a warming climate, the knock‐on effects of a diminishing snowpack may reduce the hunting success of multiple large carnivore species.
Benjamin K. Sullender   +7 more
wiley   +1 more source

Public Policies in Historical Context and the Association Between Education and US Older Adults’ Health

open access: yesThe Milbank Quarterly, EarlyView.
Policy Points Improving population health while reducing inequality is possible, but it depends on broad institutional investments whose benefits extend across the socioeconomic distribution rather than accruing primarily to the advantaged. The education–health gradient is sensitive to the race between technology and education.
MARK D. HAYWARD, MATEO P. FARINA
wiley   +1 more source

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