Results 81 to 90 of about 53,471 (304)

Photoelectric Imaging of the Optically Inactive Charge State of Silicon‐Vacancy Defects in Diamond

Advanced Science, EarlyView.
Although the doubly negative charge state of the SiV center in diamond is predicted to ionize only in the ultraviolet and is therefore considered optically inaccessible, we demonstrate visible‐range photoelectric imaging enabled by a previously unrecognized regime of laser‐assisted tunneling. ABSTRACT The investigation of optically active point defects
Ilia Chuprina, Gergő Thiering, Emilie Bourgeois, Anna Ermakova, Dmitry Budker, Adam Gali, Milos Nesladek, Petr Siyushev, Fedor Jelezko   +8 more
wiley   +1 more source

APALI – Avalanche Probability Along Linear Infrastructure [PDF]

, 2023
To secure linear infrastructure in the most cost-efficient manner, hazard hot-spots need to be known not only with regard to the intensity of possible events but also their probability.
Issler, Dieter
core  

Nanoscale Confinement Enhances Ultrafast Demagnetization

Advanced Science, EarlyView.
Next generation spintronics may depend on successfully combining femtosecond spin dynamics with nanoscale device miniaturization. We address this by systematically studying the effect of nanoscale confinement on the femtosecond demagnetization of Iron. By combining ultrafast experiments sensitive to spins, charge carriers, and phonons, we uncover a nm ...
Yoav William Windsor, Tobias Lojewski, Moumita Kundu, Klaus Sokolowski‐Tinten, Nico Rothenbach, Andrea Eschenlohr, Markus Ernst Gruner, Katharina Ollefs, Carolin Schmitz‐Antoniak, Soma Salamon, Daniela Zahn, Laurenz Rettig, Christian Schüßler‐Langeheine, Niko Pontius, Renkai Li, Mianzhen Mo, Suji Park, Xiaoshe Shen, Stephen Weathersby, Xijie Wang, Rossitza Pentcheva, Heiko Wende, Ulrich Nowak, Uwe Bovensiepen   +23 more
wiley   +1 more source

The Orbitron: A crossed-field device for co-confinement of high energy ions and electrons

AIP Advances
To explore the confinement of high-energy ions above the space charge limit, we have developed a hybrid magnetic and electrostatic confinement device called an Orbitron.
M. Affolter, R. Thompson, S. Hepner, E. C. Hayes, V. Podolsky, M. Borghei, J. Carlsson, A. Gargone, D. Merthe, E. McKee, R. Langtry   +10 more
doaj   +1 more source

Natural Emergencies and Some Causes of Their Occurrence: a Review [PDF]

Trends in Ecological and Indoor Environmental Engineering
In recent decades, nature has seen many anomalies with the environment, climate, and the processes taking place. This leads to a change in the temperature of the environment, the formation of meteorological processes that are not characteristic of a ...
Nikolay Todorov Dolchinkov
doaj   +1 more source

Modern Avalanche Rescue

, 1968
Discusses recommended pre-accident planning and introduces a three-stage rescue approach for avalanche ...
Perla, Ronald I.
core  

Avalanche observations versus numerical avalanche model: Simple test of model performance [PDF]

, 2021
Hazard assessment for landuse planning in snow avalanche prone areas requires, besides knowledge of return periods, the specification of expected runout distances.
Body, Nellie Sofie, Gauer, Peter, Aalerud, Annicken Helene   +2 more
core  

Neuromorphic Optical Tracking and Imaging of Randomly Moving Targets Through Dynamic Dense Scattering Media

Advanced Science, EarlyView.
Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Ning Zhang, Arto Nurmikko
wiley   +1 more source

Snow and Avalanche Conditions at Mt. Baldy, California

, 1966
The winter recreation area of Mt. Baldy presents some unusual snow, weather and avalanche conditions. The snow ranger\u27s task of insuring public safety on this part of the Angeles National Forest is compounded by the proximity of the huge Los Angeles ...
Rady, Des F.
core  

An Avalanche Effect Nanomodulator Triggers Cascade Ferroptosis/Cuproptosis for Immunosuppressive Microenvironment Remodeling

Advanced Science, EarlyView.
A nanomodulator called L‐Arginine/lificiguat@Copper‐hollow Prussian blue@Calcium phosphate nanoparticles is constructed to launch a self‐amplifying “avalanche effect” in tumor cells. The ensuing cascade, triggered by the acidic tumor microenvironment and near‐infrared light, induces calcium overload, generates a reactive oxygen species and reactive ...
Hongmei Zhou, Caixi Yu, Guilan Xu, Lijuan Liu, Yujia Liang, Yulin Liang, He Ding, Litu Zhang, Piaoping Yang, Chen Wang   +9 more
wiley   +1 more source