Results 131 to 140 of about 28,105 (306)

Optimised Molecular Traps and Conjugated Structures for Superior High‐Temperature Capacitive Performance in Polyimide

open access: yesHigh Voltage, EarlyView.
ABSTRACT In the fields of automotive electronics, power electronics, and aerospace, environmental conditions are often extremely harsh, particularly for materials that must endure high temperatures, high power and require high stability. The degradation of capacitance performance in polymer dielectrics under high electric fields and elevated ...
Xue Li   +9 more
wiley   +1 more source

Enhancing Hydrophobic Stability of Silicone Rubber Insulators Under High‐Voltage Direct Current Stress Through Optimised Nano‐Fumed Silica Surface Area: A Dynamic Drop Test Study

open access: yesHigh Voltage, EarlyView.
ABSTRACT The long‐term hydrophobic stability of silicone rubber (SiR) insulators is essential for their reliability in high‐voltage direct current (HVDC) applications. This study investigates the effect of nano‐silica fillers with varying specific surface areas (SSA = 120, 200 and 300 m2/g) and different concentrations of alumina trihydrate (ATH ...
Mahmoud A. Ali   +3 more
wiley   +1 more source

ForestForTrees: An R package to infer forest structure from remote sensing data

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Estimating forest size‐abundance distributions is essential for understanding demographic processes and structural dynamics. Remote sensing provides broad coverage but often misses smaller trees hidden beneath the canopy, complicating inference of the full size distribution.
Adam J. Eichenwald   +4 more
wiley   +1 more source

Using wingbeat frequency to estimate mass gain

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Energy intake is a fundamental currency in ecology that is critical to reproductive success, survival and lifetime fitness. Measuring foraging success in wild animals via biologgers has been a long‐standing challenge but is essential to understanding the mechanisms underlying population dynamics and species distributions.
Allison Patterson   +2 more
wiley   +1 more source

Challenging and diagnosing structured population models by testing predictions from stochastic demography

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Structured population models are parameterized to accurately project expected population sizes, stage/state distributions and population growth rates, but they also predict the variation in outcomes among individuals, such as the variance and skewness of lifetime reproductive output (LRO) and lifespan, the probability of never reproducing, and
Stephen P. Ellner   +8 more
wiley   +1 more source

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