Results 91 to 100 of about 240,656 (315)

An operational windmill in an open-air museum as a conservation challenge: Lessons from projects recently implemented in Poland [PDF]

open access: yesMuzeológia a Kultúrne Dedičstvo
The article discusses the methods of protecting historic windmills and recognising them as valuable objects of industrial heritage. Therefore, examples of attempts to restore windmills as working mills after 2010 are discussed.
Filip Tomaszewski, Bartosz M. Walczak
doaj   +1 more source

The detection of the electric field vertical distribution underneath thundercloud: Principle and applications [PDF]

open access: yes
During the Florida 89 experiment at Kennedy Space Center, a new system was used in order to obtain the vertical distribution of the electric field underneath thunderstorms. It consists of a standard shutter field mill at ground level and five other field
Chauzy, Serge, Soula, Serge
core   +1 more source

Hyper-Selective Plasmonic Color Filters [PDF]

open access: yes, 2016
The subwavelength mode volumes of plasmonic filters are well matched to the small size of state-of-the-art active pixels (~ 1 {\mu}m) in CMOS image sensor arrays used in portable electronic devices.
Atwater, Harry   +3 more
core   +3 more sources

Enhanced Switching Performance in Single‐Crystalline PbTiO3 Ferroelectric Memristors for Replicating Synaptic Plasticity

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrated single‐crystalline PbTiO3‐based memristors with atomically sharp interfaces, well‐ordered lattices, and minimal lattice mismatch. The devices exhibited an ON/OFF ratio exceeding 105, high stability, and rich resistance‐state modulation.
Haining Li   +7 more
wiley   +1 more source

Extra-Virgin Olive Oil Extracted Using Pulsed Electric Field Technology: Cultivar Impact on Oil Yield and Quality

open access: yesFrontiers in Nutrition, 2019
The main operators of the olive oil sector are continuously involved in the development of the olive oil mechanical extraction process with the common aim of increasing both the quality and the oil extraction yield coupled with the potential enhancement ...
Gianluca Veneziani   +9 more
doaj   +1 more source

Retrieving Storm Electric Fields from Aircraft Field Mill Data. Part I: Theory

open access: yesJournal of Atmospheric and Oceanic Technology, 2006
Abstract It is shown that the problem of retrieving storm electric fields from an aircraft instrumented with several electric field mill sensors can be expressed in terms of a standard Lagrange multiplier optimization problem. The method naturally removes aircraft charge from the retrieval process without having to use a high-voltage ...
openaire   +1 more source

Power system applications of fiber optic sensors [PDF]

open access: yes
This document is a progress report of work done in 1985 on the Communications and Control for Electric Power Systems Project at the Jet Propulsion Laboratory.
Jackson, S. P.   +3 more
core   +1 more source

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam   +14 more
wiley   +1 more source

Classification of Particles Dispersed by Bead Milling Using Electrical Field-Flow Fractionation

open access: yesJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2009
The purpose of the present study is to develop a new nanoparticle-classification technique to replace centrifugal separation method. To identify size-dependent particle properties, we investigated the dispersion, classification, and surface potential of silica particles treated with a bead mill, which was used to create a nanoparticle dispersion.
Tetsuya Yamamoto   +3 more
openaire   +1 more source

Bulk Nanocrystalline Thermoelectrics Based on Bi-Sb-Te Solid Solution [PDF]

open access: yes, 2012
A nanopowder from p-Bi-Sb-Te with particles ~ 10 nm were fabricated by the ball milling using different technological modes. Cold and hot pressing at different conditions and also SPS process were used for consolidation of the powder into a bulk ...
Blank, V. D.   +10 more
core   +2 more sources

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