Results 51 to 60 of about 391,025 (405)

Hosts, microbiomes, and the evolution of critical windows

open access: yesEvolution Letters, Volume 6, Issue 6, Page 412-425, December 2022., 2022
Abstract The absence of microbial exposure early in life leaves individuals vulnerable to immune overreaction later in life, manifesting as immunopathology, autoimmunity, or allergies. A key factor is thought to be a “critical window” during which the host's immune system can “learn” tolerance, and beyond which learning is no longer possible.
C. Jessica E. Metcalf   +3 more
wiley   +1 more source

A Simplified Top-Oil Temperature Model for Transformers Based on the Pathway of Energy Transfer Concept and the Thermal-Electrical Analogy

open access: yesEnergies, 2017
This paper presents an alternative approach to determine the simplified top-oil temperature (TOT) based on the pathway of energy transfer and thermal-electrical analogy concepts.
Muhammad Hakirin Roslan   +5 more
doaj   +1 more source

Lightning [PDF]

open access: yesGeneral Science Quarterly, 1916
n ...
openaire   +2 more sources

A Comprehensive Review on Optimal Location and Sizing of Reactive Power Compensation Using Hybrid-Based Approaches for Power Loss Reduction, Voltage Stability Improvement, Voltage Profile Enhancement and Loadability Enhancement

open access: yesIEEE Access, 2020
With the modernization of power grids, the network optimal utilization is essential to ensure that voltage profile at each bus is maintained within an acceptable range, voltage stability of the system is enhanced, power losses in lines are minimized ...
Bazilah Ismail   +5 more
doaj   +1 more source

Lightning on exoplanets and brown dwarfs: Modelling and detection of lightning signatures throughout the electromagnetic spectrum [PDF]

open access: yesarXiv, 2021
Lightning is an important electrical phenomenon, known to exist in several Solar System planets. It carries information on convection and cloud formation, and may be important for pre-biotic chemistry. Exoplanets and brown dwarfs have been shown to host environments appropriate for the initiation of lightning discharges.
arxiv  

Effects of Lightning on Trees: A Predictive Model Based on in situ Electrical Resistivity [PDF]

open access: yes, 2017
The effects of lightning on trees range from catastrophic death to the absence of observable damage. Such differences may be predictable among tree species, and more generally among plant life history strategies and growth forms.
Bitzer, Phillip M.   +4 more
core   +2 more sources

Predicting post‐wildfire overland flow using remotely sensed indicators of forest productivity

open access: yesHydrological Processes, Volume 36, Issue 12, December 2022., 2022
Relations between runoff coefficient and landscape metrics. (a) linear regression for inland plots only, (b) no regression determined for the data, (c‐f) exponential decay function fitted to the data (C = ae(b×x)). Triangles are the mean value for C, the line is the median, the bar show the range between the 25th and 75th percentiles, whiskers are the ...
Philip J. Noske   +4 more
wiley   +1 more source

Application of Markov Model to Estimate Individual Condition Parameters for Transformers

open access: yesEnergies, 2018
This paper presents a study to estimate individual condition parameters of the transformer population based on Markov Model (MM). The condition parameters under study were hydrogen (H2), methane (CH4), acetylene (C2H2), ethylene (C2H4), ethane (C2H6 ...
Amran Mohd Selva   +6 more
doaj   +1 more source

Nowcasting lightning occurrence from commonly available meteorological parameters using machine learning techniques

open access: yesnpj Climate and Atmospheric Science, 2019
Lightning discharges in the atmosphere owe their existence to the combination of complex dynamic and microphysical processes. Knowledge discovery and data mining methods can be used for seeking characteristics of data and their teleconnections in complex
A. Mostajabi   +3 more
semanticscholar   +1 more source

Gigantic jet discharges evolve stepwise through the middle atmosphere

open access: yesNature Communications, 2019
Gigantic jets, lightning discharges originating from tropical thunderstorms that can reach the base of the ionosphere at 90 km altitude, have not been captured using high-speed video cameras before.
Oscar A. van der Velde   +3 more
doaj   +1 more source

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