Results 61 to 70 of about 311,267 (287)

Versatile Gasochromic Hydrogen Detection via Supraparticle‐Based Applied Composite Materials

Advanced Optical Materials, EarlyView.
Silica‐platinum‐resazurin supraparticles are embedded into PMMA to form suprabeads and thin films. The thereby obtained indicators change color from purple to pink to colorless on hydrogen exposure. The indicator systems are tested under various environmental conditions, and their performance is related to their microscopically visualized structure ...
Sarah Wenderoth, Maximilian Oppmann, Daniel Dzoic, Thomas Zimmermann, Mickaël Lejoyeux, Andreas Graff, Benedikt Schug, Susanne Wintzheimer   +7 more
wiley   +1 more source

Solone ore field – a priority target for the start of gold mining in Ukraine

Мінеральні ресурси України, 2021
10 gold deposits and more than 200 occurrences have already been discovered in Ukraine. They are located within the Carpathian-Crimean, Dnipro-Donetsk and Ukrainian Shield metallogenic provinces. The richest gold-bearing province is the Ukrainian Shield (
V. V. Sukach, O. B. Bobrov
doaj   +1 more source

Choice and substantiation of stable crown shapes in deep-level iron ore mining [PDF]

, 2018
Purpose. The aim of the paper is to select and substantiate stable shapes of crown pillars through determining regularities of rock pressure impacts on their stability depending on the crown shapes, mining depths and iron ore hardness. Methods.
Kalinichenko, O, Kalinichenko, V, Morhun, O, Pysmennyi, S, Stupnik, M   +4 more
core   +1 more source

Fungal transformation of selenium and tellurium located in a volcanogenic sulfide deposit [PDF]

, 2020
© 2020 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.Peer ...
Armstrong, Joseph Graham, Bullock, Liam Adam, Csetenyi, Laszlo, Feldmann, Joerg, Gadd, Geoffrey Michael, Liang, Xinjin, Parnell, John, Perez, Magali Aude Marie-Jeanne, Song, Wenjuan, Zhang, Shuai   +9 more
core   +4 more sources

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

PALEOGEOGRAPHY OF THE AZOV­BLACK SEA BASIN IN QUATERNARY TIME

Геологія і корисні копалини Світового океану, 2019
The article notes that during the Quaternary period there was at least 5—6 glaciations, which each time entailed a sharp change in the ecological and hydrological situation both in the Caspian Sea and in the Black Sea.
Yu.I. Inozemtsev, O.O. Paryshev, L.V. Stupina, E.N. Rybak   +3 more
doaj   +1 more source

Zeolite deposits of possible economic significance on the northern Alaska Peninsula [PDF]

, 1982
Clinoptilolite, mordenite, haulandite and laumontite have been identified in possible economic concentrations on the Alaska Peninsula. Most important are 1) a haulandite bearing water-laid tuff on Agate Island, 2) a thick sequence of terrestrial ...
Madonna, J.A.
core  

Economic geology: Volatile destruction [PDF]

, 2010
International audienceDirect evidence for the role of volatiles in magmatic ore formation has been elusive. Magma degassing at Merapi volcano in Indonesia is found to be directly linked to the selective leaching of metals from sulphide melts that ...
AJ Naldrett, B Clemente, B Scaillet, Bruno Scaillet, CA Manning, CW Burnham, G Iacono-Marziano, HY Chung, JD Keith, MR Carroll, PJ Wallace, RR Loucks, S Jego   +12 more
core   +3 more sources

A Virtual Clinical Trial of Psychedelics to Treat Patients With Disorders of Consciousness

Advanced Science, EarlyView.
Disorders of consciousness after severe brain injury are marked by reduced complexity of brain activity and limited treatment options. Using personalized whole‐brain models, this study shows that simulated lysergic acid diethylamide (LSD) and psilocybin shift patient brain dynamics closer to criticality.
Naji L.N. Alnagger, Paolo Cardone, Charlotte Martial, Yonatan Sanz Perl, Iván Mindlin, Jacobo D Sitt, Leor Roseman, Robin Carhart‐Harris, David Nutt, Pablo Mallaroni, Natasha Mason, Johannes G Ramaekers, Vincent Bonhomme, Steven Laureys, Gustavo Deco, Olivia Gosseries, Pablo Núñez, Jitka Annen   +17 more
wiley   +1 more source

Atomistic Understanding of 2D Monatomic Phase‐Change Material for Non‐Volatile Optical Applications

Advanced Science, EarlyView.
Antimony is a promising monatomic phase‐change material. Scaling down the film thickness is necessary to prolong the amorphous‐state lifetime, but it alters the optical properties. The combined computational and experimental study shows that, as thickness decreases, the extinction coefficient and optical contrast are reduced in the near‐infrared ...
Hanyi Zhang, Xueqi Xing, Jiang‐Jing Wang, Chao Nie, Yuxin Du, Junying Zhang, Xueyang Shen, Wen Zhou, Matthias Wuttig, Riccardo Mazzarello, Wei Zhang   +10 more
wiley   +1 more source