Results 81 to 90 of about 73,435 (259)

THERMOBAROMETRY OF DEPLETED PERIDOTITES

Геодинамика и тектонофизика
An assessment was made of the possibility of using olivine thermobarometry for xenoliths of depleted peridotites from the Udachnaya pipe (Yakutia), represented by 76 megacrystalline dunites and 5 megacrystalline harzburgites.
L. N. Pokhilenko, V. N. Korolyuk, N. P. Pokhilenko   +2 more
doaj   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Universal and Normalized Regeneration of Heterogeneous Spent LiFePO4 via Mechanochemical Delithiation and Flash Relithiation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
We propose a universal “x → 0 → 1” regeneration route: mechanochemical delithiation converts spent LixFePO4 of any degradation level to FePO4, erasing batch variance; 35‐s flash relithiation yields uniform LiFePO4 with near‐identical capacity, suppressing grain growth and cutting energy andtime by >90% versus furnace sintering, overcoming unpredictable
Yaduo Song, Hao Zhang, Sanqi Guo, Cheng Lin, Junyi Lian, Xin Hu, Jinming Guo, Dinggen Li, Minglei Cao, Zhiqiang Wang, Jinyu Wen, Yunhui Huang, Jia Xie, Yonggang Yao   +13 more
wiley   +1 more source

Heterogeneous magnetite nucleation in fluid inclusions as driving force for olivine oxidation coupled with hydrogen production at high pressure [PDF]

, 2023
Nadia Malaspina, Marcello Campione, Simone Tumiati, Marco Scambelluri   +3 more
openalex   +1 more source

Are Large Trojan Asteroids Salty? An Observational, Theoretical, and Experimental Study

, 2012
With a total mass similar to the main asteroid belt, the Jovian Trojan asteroids are a major feature in the solar system. Based upon the thermal infrared spectra of the largest Trojans obtained with the Spitzer space telescope, Emery et al.
Glotch, Timothy, Lucey, Paul, Yang, Bin
core   +1 more source

Grain growth and dust settling in a brown dwarf disk: Gemini/T-ReCS observations of CFHT-BD-Tau 4 [PDF]

, 2004
We present accurate mid-infrared observations of the disk around the young, bona-fide brown dwarf CFHT-BD-Tau 4. We report GEMINI/T-ReCS measurements in the 7.9, 10.4 and 12.3 micron filters, from which we infer the presence of a prominent, broad ...
Adams, Apai, Bouwman, C. P. Dullemond, Calvet, Chiang, Chiang, Cohen, Comerón, D. Apai, Dorschner, Draine, Dubrulle, Dullemond, Grady, I. Pascucci, J. Bouwman, Jayawardhana, Jayawardhana, Klein, Lissauer, Liu, M. F. Sterzik, Martín, Meeus, Mohanty, Muench, N. van der Bliek, Natta, Natta, Natta, Pascucci, Przygodda, Shu, Shu, Spitzer, Stetson, Testi, Th. Henning, van Boekel, Walker   +40 more
core   +3 more sources

Perovskite Li3/8Sr7/16Ta3/4Zr1/4O3 Surface Coating Enables Stable Cycling of Li‐Rich Mn‐Based Cathodes at High Voltage

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The LSTZ coating significantly enhances the electrochemical performance of Li‐rich Mn‐based cathodes, achieving high ICE (79.5%) and outstanding long‐term cycling stability (178.5 mAh g−1 with 94.4% retention after 120 cycles at 25 °C; 209.7 mAh g−1 with 95.7% retention after 300 cycles at 45 °C).
Yuyao Ma, Sidong Zhang, Wei Hu, Wenqing Wei, Yutao Li   +4 more
wiley   +1 more source

Severe Strain‐Induced Olivine‐Ringwoodite Transformation at Room Temperature: Key to Enigmas of Deep‐Focus Earthquake

Geophysical Research Letters
Deep‐focus earthquakes at 350–660 km are presumably caused by olivine‐spinel phase transformation (PT). This cannot, however, explain the observed high seismic strain rate, which requires PT to complete within seconds, while metastable olivine does not ...
F. Lin, V. I. Levitas, S. Yesudhas, A. Dhar, J. Smith   +4 more
doaj   +1 more source

Spectral Energy Distributions of T Tauri and Herbig Ae Disks: Grain Mineralogy, Parameter Dependences, and Comparison with ISO LWS Observations [PDF]

, 2000
We improve upon the radiative, hydrostatic equilibrium models of passive circumstellar disks constructed by Chiang & Goldreich (1997). New features include (1) account for a range of particle sizes, (2) employment of laboratory-based optical constants of
Bouwman J., C. Qi, Calvet N., Dutrey A., E. F. van Dishoeck, E. I. Chiang, G. A. Blake, J. E. Kessler, Jager C., Jager C., M. J. Creech‐Eakman, M. K. Joung, Natta A., Warren S. G.   +13 more
core   +3 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source