Results 51 to 60 of about 4,701 (230)

Liquid‐Assisted Atmospheric Plasma Polymerization of Highly Viscous and Low‐Vapor Pressure Bio‐Based Monomer

open access: yesPlasma Processes and Polymers, Volume 22, Issue 8, August 2025.
Atmospheric plasma polymerization of highly viscous bio‐based isosorbide methacrylate is studied to enhance polymerization efficiency and film durability. The effects of discharge power, monomer injection rate, and plasma gas (argon vs. nitrogen) on the formation of stable coatings are investigated. Results demonstrate that argon plasma promotes higher
François Loyer   +8 more
wiley   +1 more source

Chaos From Switched-Capacitor Circuits: Discrete Maps [PDF]

open access: yes, 1987
A special-purpose analog computer made of switched-capacitor circuits is presented for analyzing chaos and bifurcation phenomena in nonlinear discrete dynamical systems modeled by discrete maps *n + t = fan)-Experimental results are given for four ...
Huertas Díaz, José Luis   +3 more
core   +1 more source

APPLICATION OF TRANSDUCTORS IN SHORT-CIRCUIT CURRENT MEASURING DEVICES

open access: yesAdvanced Engineering Research, 2012
The statement that transductors with magnetodielectric carbonyl iron dust-based magnetic circuits have the linear gain characteristic on the peak values throughout the full range of the real current value shift is proved in theory and by experiment ...
Nikolay I. Tsygulev, Vladimir R. Prous
doaj  

Prospects of measuring the leptonic CP phase with atmospheric neutrinos

open access: yes, 2009
We have studied the prospects of measuring the CP violating phase with atmospheric neutrinos at a large magnetized iron calorimeter detector considering the muons (directly measurable) of the neutrino events generated by a MonteCarlo event generator ...
Abhijit Samanta   +2 more
core   +1 more source

Allometric Constraint Predominates Over the Acoustic Adaptation Hypothesis in a Radiation of Neotropical Treefrogs

open access: yesIntegrative Zoology, Volume 20, Issue 4, Page 763-773, July 2025.
Male frogs emit calls to attract mates and deter conspecific rivals. The evolution of these calls is thought to be linked to anatomical constraints and the acoustic characteristics of their surroundings. We tested these two factors in a radiation of 112 species of Neotropical treefrogs and found that body size and calling site affect peak frequency but
Moisés Escalona   +17 more
wiley   +1 more source

Research of the rotation frequency of the working parts of an auger cleaner [PDF]

open access: yesE3S Web of Conferences
The paper presents the results of a study of the working parts of a screw intended for transportation, drying, and cleaning of raw cotton at high productivity.
Rakhmonov Khayriddin   +1 more
doaj   +1 more source

Rthoptera: Standardised insect bioacoustics in R

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 6, Page 1084-1094, June 2025.
Abstract Almost 100 years after the dawn of insect bioacoustics, freely available and robust analysis tools and protocols are still needed. We introduce Rthoptera, an open‐source R package designed for robust analysis of insect acoustic signals. It delivers accurate temporal and spectral measurements, along with intuitive visualisations, through a ...
Francisco Rivas   +3 more
wiley   +1 more source

Pump‐Probe Imaging of Ultrafast Laser Percussion Drilling of Glass in Single Pulse, MHz‐ and GHz‐Burst Regimes

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 10, May 19, 2025.
Pump‐probe shadowgraphy of glass drilling is shown with a femtosecond laser operating in MHz‐ and GHz‐burst regime. A comparison with standard femtosecond micro‐processing using repetitive single pulses is provided. The ablation plume lifetime is measured in all three regimes, and the drilling dynamics of Through Glass Via (TGV) in GHz‐burst mode are ...
Pierre Balage   +6 more
wiley   +1 more source

Effect of Spatial and Temporal Urban Isolation on the Genetic Diversity, Acoustic Variation, and Morphological Characteristics of an Urban Survivor Bird Species

open access: yesEcology and Evolution, Volume 15, Issue 4, April 2025.
Urbanization fragments habitats and isolates populations, reducing gene flow and driving divergence in genetic, acoustic, and morphological traits. Over ten years, isolated populations of white‐eared ground‐sparrows exhibited increased inbreeding, altered song characteristics, and changes in body and beak size, with significant correlations found ...
Luis Cueva   +4 more
wiley   +1 more source

Early colonization of New Caledonia by ultrasonic crickets from New Guinea (Orthoptera: Gryllidae: Eneopterinae): Historical biogeography and description of a new genus

open access: yesSystematic Entomology, Volume 50, Issue 2, Page 269-295, April 2025.
We describe Kanakinthus koniambo, a new genus and species of the subtribe Lebinthina endemic to New Caledonia using ultrasonic calls, and three new species of the genus Agnothecous. We provide a robust dated phylogeny of the subfamily Eneopterinae using eight molecular markers and a comprehensive taxon sampling with a focus on the Western Pacific ...
Thomas Le Flanchec   +10 more
wiley   +1 more source

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