Results 41 to 50 of about 210,369 (272)

A practical theorem on using interferometry to measure the global 21-cm signal [PDF]

open access: yes, 2016
The sky-averaged, or global, background of redshifted $21$ cm radiation is expected to be a rich source of information on cosmological reheating and reionizaton.
Chang, Tzu-Ching   +3 more
core   +3 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Survival following an impalement injury through the perineum in association with high voltage electrical burns: A case report

open access: yesJournal of Acute Disease, 2017
We reported a case of a 30-year-old man who reportedly sustained electrical burns and fell from a high voltage electric pole about 50 meter high onto a metal that caused impalement injury. In addition, he sustained full-thickness burns of the right upper
Joseph Yorke   +12 more
doaj   +1 more source

Unlocking Ultra‐Long Cycle Stability of Li Metal Electrode by Separators Modified by Porous Red Phosphorus Nanosheets

open access: yesAdvanced Functional Materials, EarlyView.
Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang   +9 more
wiley   +1 more source

Hazardous Waits: CPSC Lets Crucial Time Pass Before Warning Public About Dangerous Products [PDF]

open access: yes, 2008
Despite a law requiring manufacturers to provide the Consumer Product Safety Commission (CPSC) with "immediate" notification of dangerous products, the agency typically delays nearly seven months after learning of dangerous, defective products before ...
Taylor Lincoln
core  

Central mode and soft mode behavior in PbMg1/Nb2/3O3 relaxor ferroelectric

open access: yes, 2004
The relaxor ferroelectric PbMg1/Nb2/3O3 was investigated by means of broad-band dielectric and Fourier Transform Infrared (FTIR) transmission spectroscopy in the frequency range from 1 MHz to 15 THz at temperatures between 20 and 900 K using PMN films on
Bovtun, V.   +5 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Lower trapezius myocutaneous flap repairs adjacent deep electrical burn wounds

open access: yesEuropean Journal of Medical Research, 2020
Background Local tissue damage caused by electrical burns is often deep and severe. High-voltage electrical burns are common in the head, neck and torso areas.
Chengying Meng   +10 more
doaj   +1 more source

Electrical Burns

open access: yesIndian Journal of Plastic Surgery, 1984
SummaryThe pathophysiology of electrical burns and the ways it differs from thermal turns are discussed.134 cases of electrical burns during 5 years period are presented, out of which only 25 cases required different types of specialised surgical management.
openaire   +2 more sources

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