Results 71 to 80 of about 72,738 (296)

Monitoring contamination level on insulator materials under dry condition with a microwave reflectometer [PDF]

, 2016
Current techniques used for monitoring the levels of contamination on high voltage insulators, such as leakage current and infrared, are not effective in dry conditions since they require the surface of the insulator to be wetted by fog, rain or snow. If
Jiang, Y., Judd, M.D., McMeekin, S.G., Nekahi, A., Reid, A.J., Wilson, A.   +5 more
core   +1 more source

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

Advanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani, Shang‐Lin Yeh, Karuna Anna Sajeevan, Mica L. Pitcher, Dawson Alexander, Ratul Chowdhury, Amir Sheikhi   +6 more
wiley   +1 more source

Rat Head Phantom for Testing of Electroencephalogram Source Localization Techniques

IEEE Access, 2020
In this paper we report a new rat head phantom developed for testing electroencephalogram source localization techniques. The phantom is composed of an agar based mixture mimicking the rat brain, six dipoles and fourteen electrodes for modeling and ...
Jaroslav Lacik, Vlastimil Koudelka, David Kuratko, Zbynek Raida, Daniel Krzysztof Wojcik, Tomas Mikulasek, Jiri Vanek, Stanislav Jiricek, Cestmir Vejmola   +8 more
doaj   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Karl Jonas Riisnaes, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

Complex Permittivity to Detect Lead in Soil with Various Salt Forms and Combinations

MATEC Web of Conferences, 2017
The response of soil-water systems to an external electric field can be described as polarization and conduction. Polarization represents the electric charges stored in a material, whereas conduction is the ability of a material to conduct free charges ...
Al Martini Samer, Shang Julie Q.
doaj   +1 more source

Infrared and THz studies of polar phonons and improper magnetodielectric effect in multiferroic BFO3 ceramics

, 2006
BFO3 ceramics were investigated by means of infrared reflectivity and time domain THz transmission spectroscopy at temperatures 20 - 950 K, and the magnetodielectric effect was studied at 10 - 300 K, with the magnetic field up to 9 T.
D. Nuzhnyy, D. Y. Smith, F. Gervais, J. Kreisel, J. Petzelt, J. Prokleška, J. Šebek, M. Savinov, N. N. Krainik, P. Nalbach, R. Haumont, S. Kamba, Yu. E. Roginskaya, Yu. F. Popov   +13 more
core   +1 more source

Dielectric properties measurements of brown and white adipose tissue in rats from 0.5 to 10 GHz [PDF]

, 2016
Brown adipose tissue (BAT) plays an important role in whole body metabolism and with appropriate stimulus could potentially mediate weight gain and insulin sensitivity.
Colebeck, E., Hood, A. Z., Maccarini, P. F., Rodrigues, Dario B., Salahi, S., Stauffer, Paul R., Topsakal, E.   +6 more
core   +2 more sources

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Electromagnetic Wave Absorption Properties of Novel Green Composites Coconut Fiber Coir and Charcoal Powder over X-band Frequency for Electromagnetic Wave Absorbing Applications

Advanced Electromagnetics, 2018
This paper presents the electromagnetic wave (EW) absorption properties in terms of complex permittivity and permeability of novel green composites coconut fiber coir and charcoal powder materials.
N. F. N. Yah, H. A. Rahim, Y. S. Lee, F. H. Wee, H. H. Zainal   +4 more
doaj   +1 more source

Hubungan di antara status Sosio Ekonomi (SSE) keluarga dengan pencapaian akademk : satu kajian ke at as pelajar aliran teknikal di Sekolah Menengah Teknik Negeri Sembilan [PDF]

, 2004
Kajian ini bertujuan untuk melihat hubungan di antara status sosio ekonomi (SSE) keluarga dengan pencapaian akademik di kalangan pelajar aliran teknikal.
Mat Il, Mohd Zainal
core