Results 71 to 80 of about 39,830 (276)

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

open access: yesHigh Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat   +3 more
wiley   +1 more source

Compact Silicon-Arrayed Waveguide Gratings with Low Nonuniformity

open access: yesSensors
Array waveguide gratings (AWGs) have been widely used in multi-purpose and multi-functional integrated photonic devices for Microwave photonics (MWP) systems.
Chengkun Yang   +8 more
doaj   +1 more source

Chirped Pulse Spectrometer Operating at 200 GHz [PDF]

open access: yes, 2017
The combination of electronic sources operating at high frequencies and modern microwave instrumentation has enabled the recent development of chirped-pulse spectrometers for the millimetre and THz bands.
Bocquet, Robin   +7 more
core   +4 more sources

Taking Different Roads to Rome: Protective and Proactive Orientations Towards Institutional Power Resources

open access: yesBritish Journal of Industrial Relations, EarlyView.
ABSTRACT Works councils in Germany possess substantial institutional resources to protect workers' interests. Yet little is known about how these resources are mobilised in practice and why similar outcomes may emerge through different pathways. Drawing on two German firms acquired by Chinese state‐owned enterprises, this study examines how works ...
Tina Miedtank, Johann Fortwengel
wiley   +1 more source

Analysis of three different equations for predicting quadriceps femoris muscle strength in patients with COPD

open access: yesJornal Brasileiro de Pneumologia, 2015
Objective: To compare equations for predicting peak quadriceps femoris (QF) muscle force; to determine the agreement among the equations in identifying QF muscle weakness in COPD patients; and to assess the differences in characteristics among the groups
Aline Gonçalves Nellessen   +3 more
doaj   +1 more source

DESEMPENHO DE DIFERENTES BITOLAS DE TERMOPAR EM UM PSICRÔMETRO ASPIRADO DE BAIXO CUSTO

open access: yesRevista Caatinga, 2011
The objective of this work was to evaluate an aspirated psychrometer constructed under different thermocouple gauges. Were used three thermocouple copper-constantan gauge: 24 AWG (0.511 mm of diameter), 32 AWG (0.202 mm of diameter) and 40 AWG (0.080 mm ...
CLÁUDIO RICARDO DA SILVA   +4 more
doaj  

Pengaruh Penggunaan Fan dan Debit Fluida terhadap Efisiensi Kerja Atmospheric Water Generator

open access: yesRekayasa Mesin, 2019
The purposes of this study are to investigate the effect of condenser cooling fan addition and airflow rate on the performance of Atmospheric Water Generator (AWG). In this work, humid air from the environment was supplied into AWG at 15 lpm.
Bagus Prabowo Vidiyanto   +3 more
doaj   +1 more source

Development of high resolution arrayed waveguide grating spectrometers for astronomical applications: first results

open access: yes, 2016
Astrophotonics is the next-generation approach that provides the means to miniaturize near-infrared (NIR) spectrometers for upcoming large telescopes and make them more robust and inexpensive. The target requirements for our spectrograph are: a resolving
Bland-Hawthorn, Joss   +6 more
core   +1 more source

Low‐Cost and Detunable Wireless Resonator Glasses for Enhanced Eye MRI With Concurrent High‐Quality Whole‐Brain MRI

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 1, Page 499-507, July 2026.
ABSTRACT Purpose To develop a wearable wireless resonator glasses design that enhances eye MRI signal‐to‐noise ratio (SNR) without compromising whole‐brain image quality at 7 T. Methods The device integrates two detunable LC loop resonators into a lightweight, 3D‐printed frame positioned near the eyes.
Ming Lu   +7 more
wiley   +1 more source

Elevated Circulating Ceramides 18:0 and 24:1 as a Risk Factor for Sarcopenia: In Vitro, Animal, and Clinical Evidence

open access: yesJournal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 3, June 2026.
ABSTRACT Background Ceramides have garnered considerable attention as pro‐aging bioactive lipids implicated in both metabolic dysfunction and musculoskeletal decline. Among these, C18:0 and C24:1 ceramides may play a role in the pathophysiology of sarcopenia, a key manifestation of age‐related deterioration.
So Jeong Park   +15 more
wiley   +1 more source

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