Results 31 to 40 of about 224,796 (336)

Zone‐Sectored Organic Crystals with Spatially Resolved Exciton Dynamics

Advanced Optical Materials, EarlyView.
Novel type of rubrene microcrystals in the orthorhombic phase are grown exhibiting spatial contrast in spectra and dynamics due to differences in unit cell orientation. Distinct zones selectively host redshifted luminescence band at ≈650 nm driven by high photon absorption.
Moha Naeimi, Tim Völzer, Regina Lange, Kevin Oldenburg, Stefan Lochbrunner, Ingo Barke, Sylvia Speller   +6 more
wiley   +1 more source

Mineralogy [PDF]

The American Naturalist, 1882
  +8 more sources

MICROINCLUSIONS OF PGM MINERALS IN ANCIENT GOLD PRODUCTS: OCCURRENCE, COMPOSITION, ALTERATION [PDF]

Минералогия, 2015
The PGM microinclusions in ancient gold products from the Urals, Siberia, Azov region and Turkmenistan are compared with similar inclusions from the Middle East artifacts. Microinclusions were found in the archaeological sites, which are located close to
V.V. Zaykov, P.K. Dashkovsky, E.V. Zaykova, V.A. Kotlyarov, A.M. Yuminov, I.A. Blinov   +5 more
doaj  

Northwest Africa 5790. Top Sequence of the Nakhlite Pile [PDF]

, 2010
NWA 5790 is a recently discovered nakhlite. Its mineralogy, petrology and geochemistry suggest that it is the topmost sequence of the nakhlite lava ...
Badia, D., Barrat, J. A., Bollinger, C., Boudouma, O., Franchi, I., Greenwood, R. C., Jambon, A, Sautter, V.   +7 more
core  

Dual‐Emission Switching in a Mn(II)‐Based Hybrid Bromide via Water Coordination: Synthesis, Structure, and Processing

Advanced Optical Materials, EarlyView.
This study reports the synthesis, structure, and optical properties of (pr‐ted)2[MnBr4], a luminescent manganese (II) hybrid halide. It shows green emission under UV and transforms into a red‐emitting hydrated phase with humidity, reversible by heat or vacuum. Structural, photophysical, and theoretical analyses confirm the mechanism.
Ricardo Garsed, Guillermo Hernan, Josefina Perles, José Ignacio Martínez, Aurelio Cabeza Díaz, Eugenio Cantelar, Félix Zamora, Javier Troyano, Pilar Amo‐Ochoa   +8 more
wiley   +1 more source

CHEMICAL COMPOSITION AND TRACE ELEMENT PATTERN OF A PYRRHOTITE-PYRITE NODULE FROM THE DERGAMYCH CO-BEARING MASSIVE SULFIDE DEPOSIT, SOUTH URALS [PDF]

Минералогия, 2018
Distribution of trace elements of pyrrhotite-pyrite nodule from sulfide-serpentinite «gravelites» of the Dergamysh Co-bearing massive sulfide deposit is studied using LA ICP MS method. The nodule is zonal with a central porous core composed of pyrrhotite
I.Yu. Melekestseva, V.V. Maslennikov, N.P. Safina, D.A. Artemyev   +3 more
doaj  

Long‐Term Active Rather than Passive Restoration Promotes Soil Organic Carbon Accumulation by Alleviating Microbial Nitrogen Limitation in an Extremely Degraded Alpine Grassland

Advanced Science, EarlyView.
Active restoration increases soil organic carbon stocks by reducing microbial nitrogen limitation. Nitrogen availability promotes particulate to mineral‐associated organic carbon conversion by reducing microbial carbon use efficiency. Passive restoration has no effect on soil organic carbon stocks.
Jinchao Gong, Feida Sun, Jingjing Wu, Shijie Zhou, Yue Xiu, Linlin Li, Tahmina Kausar, Zhouwen Ma, Jiqiong Zhou, Lin Liu, Yongxing Cui, Jordi Sardans, Josep Peñuelas, Ahmed Elrys, Ji Chen, Yanfu Bai   +15 more
wiley   +1 more source

MINERAL COMPOSITION OF SEDIMENTS OF TIDAL ZONE OF GUYANA, SOUTH AMERICA [PDF]

Минералогия, 2018
The mineral composition of the mud halo of the Guyana coast is studied. Terrigenous quartz and feldspars are totally dominant in pelitic sediments of the littoral zone accompanied by terrigenous and organic calcite, variable amount of kaolinite, hydrated
K.A. Novoselov, E.V. Belogub, E.E. Palenova, I.A. Blinov   +3 more
doaj  

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V., Downes, Hilary, Hock, V., Lazarov, M., Prelevic, D.   +4 more
core   +1 more source

Injectable and In Situ Hydration‐Reinforced Hybrid Bone Cements for Accelerated Bone Regeneration

Advanced Science, EarlyView.
To enable minimally invasive bone defect repair, an injectable and hydration‐reinforced bone cement (L‐PEGS/CPC) is designed through biomimetic reconstruction. The hydrophilic L‐PEGS organic phase provides abundant nucleation sites, synergizing with its porous architecture to accelerate CPC hydration, thereby endowing the composite with exceptional ...
Xing Chen, Yifan Ma, Lingfei Zhao, Lingbin Che, Dianwen Song, Zihan Wu, Changsheng Liu, Yuan Yuan   +7 more
wiley   +1 more source