Results 91 to 100 of about 720,628 (278)

Chromium isotopes in CR chondrites reveal two distinct chondrule reservoirs

Chondrules, the dominant components of chondrites, provide crucial insights into early solar system formation and evolution. Due to the variability of Cr isotopes in the solar system, they can serve as powerful tracers of chondrule genealogy and the ...
Anand, A., Mezger, K.
core   +1 more source

Trace elements and Pb isotope records in Dome C (East Antarctica) ice over the past 800,000 years

E3S Web of Conferences, 2013
Trace elements (V, Cr, Mn, Fe, Co, Cu, Zn, As, Rb, Sr, Mo, Cd, Sb, Ba, Tl, Pb, Bi, Th and U) and Pb isotopic compositions from the EPICA (European Project for Ice Coring in Antarctica) Dome C ice core have been determined using inductively coupled plasma
Hong S., Han C. H., Hwang H. J., Soyol-Erdene T-O., Kang J. H., Hur S. D., Burn-Nunes L. J., Gabrielli P., Barbante C., Boutron C. F.   +9 more
doaj   +1 more source

CR ISOTOPES AS A VALUABLE TRACER OF CR(VI) REDUCTION IN POLLUTED (GROUND)WATERS

Proceedings of the 44th International Academic Conference, Vienna, 2018
Chromium stable isotopes are of interest in many geochemical studies as a tool to identify Cr(VI) reduction in groundwater aquifers. At four industrial sites in the Czech Republic, we evaluated the extent of spontaneous removal of toxic Cr(VI) contaminated by Cr-plating baths.
openaire   +2 more sources

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Electron Microscopy Characterization of Ni-Cr-B-Si-C Laser Deposited Coatings [PDF]

, 2013
During laser deposition of Ni-Cr-B-Si-C alloys with high amounts of Cr and B, various microstructures and phases can be generated from the same chemical composition that results in heterogeneous properties in the clad layer.
Ocelik, V., Rao, J.C.,, Ocelík, V.,, Hemmati, I., Hosson, J.Th.M. De,, Ocelik, V.; id_orcid, Hemmati, I.,, De Hosson, J. Th. M., Rao, J. C.   +8 more
core   +1 more source

Beyond Furnaces: Harnessing In Situ Joule Heating for Efficient C1 Catalysis

Carbon Energy, EarlyView.
Joule‐heated catalysis directly converts electrical energy into localized heat within conductive catalysts, overcoming the heat‐transfer limitations of conventional furnaces. This review summarizes recent advances in C1 molecule conversion, including CO2 methanation, reforming for hydrogen production, and HCHO/CO oxidation, while highlighting ...
Xue Kong, Tiantian Su, Faiza Meharban, Shengbin Cao, Jingsan Xu, Chao Lin, Xiaopeng Li, Yejian Xue, Wei Luo   +8 more
wiley   +1 more source

π‐Extended Salphen Scaffolds Enable CO2 Electroreduction and Singlet Oxygen Generation

Chemistry – A European Journal, EarlyView.
New family of π‐extended salen ligands bearing phenylene bridge and tunable phenyl‐based substituents, and their corresponding boron difluoride complexes. Thanks to the extended π‐delocalization over the molecule, the ligands themselves show promising results in electrochemical CO2 reduction to CO, while the complexes act as efficient photosensitizers ...
Vincenzo Langellotti, André Korzun, Morgan J. McKee, Massimo Melchiorre, Taegeun Jo, J. Felipe Estrada‐Ruiz, Gregor Schnakenburg, Stefano Crespi, Francesco Ruffo, Nikolay Kornienko, Alessandro Bismuto   +10 more
wiley   +1 more source

A relativistic analysis of proton-induced knockout reactions from oxygen isotopes with direct and inverse kinematics. [PDF]

, 2020
>Magister Scientiae - MScIn this study a complete set of exclusive (~p; 2p) polarization transfer observables of closed-shell oxygen isotopes are calculated using both direct and inverse kinematics using the relativistic plane wave impulse ...
Motimele, Kanting Evidence
core   +1 more source

Method validation and geochemical modelling of chromium speciation in natural waters

Scientific Reports
The study focuses on validating reference methods such as ICP-OES and ICP-MS for detecting ultra-trace levels of chromium in groundwater, where concentrations are typically very low.
Piotr Rusiniak, Katarzyna Wątor, Ewa Kmiecik, Vesna Ristić Vakanjac   +3 more
doaj   +1 more source

Isolable ArInH2: Double Hydroindation Agent

Chemistry – A European Journal, EarlyView.
Stable crystalline monomeric indium dihydride ArInH2 was isolated and completely characterized using effective support of the P,C,P‐pincer ligand (Ar = 2,6‐(tBu2PO)2C6H3). It serves as unparalleled hydroindation agent, thereby extending the family of known hydrometallation process relying on heavy p‐block metals.
Adam Hochmal, Zdeňka Růžičková, Aleš Růžička, Roman Jambor, Milan Erben, Libor Dostál   +5 more
wiley   +1 more source