Results 61 to 70 of about 87,639 (320)
Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians
The Anatomical Record, EarlyView.Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit +6 more
wiley +1 more source
Pyrite/H2O2/hydroxylamine system for efficient decolorization of rhodamine B
Water Science and Technology, 2021 To improve the efficiency of the Fe(II)/Fe(III) cycle and continuous reactivity of pyrite, a pyrite/H2O2/hydroxylamine (HA) system was proposed to treat rhodamine B (RhB).
Guang-Jun He +5 more
doaj +1 more source
Obtenção dos parâmetros cinéticos da reação da decomposição e oxidação térmica da pirita [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2013.O carvão é uma das maiores fontes de energia não renovável do pais.
Concer, Paula Hahn
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Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides
Chemie Ingenieur Technik, EarlyView.Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel +5 more
wiley +1 more source
Estudo da atividade catalítica da pirita no processo de liquefação direta do carvão [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Química, Florianópolis, 2013Este trabalho descreve o estudo da liquefação direta do carvão catarinense, empregando sulfeto ...
Santos, Felipe Gomes
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Deep Underground Science and Engineering, EarlyView.This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang +5 more
wiley +1 more source
THE DETERMINATION OF SULPHUR IN PYRITES. [PDF]
Journal of the American Chemical Society, 1895 n ...
openaire +1 more source
Coupled biogeochemical dynamics of nitrogen and sulfur in a sandy aquifer and implications for groundwater quality [PDF]
, 2012 Groundwater is an essential resource for humans and its quality is often threatened by leaching of contaminants from surface soils. In agricultural areas, nitrate from fertilizer or manure is one of the most common pollutants.
Denetrification coupled with pyrite oxidation in groundwater systems +2 more
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Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs
Deep Underground Science and Engineering, EarlyView.A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao +5 more
wiley +1 more source
The effect of mixing thiol collectors in the flotation of pure sulphide ores [PDF]
, 2012 Includes bibliographical references.Using mixtures of xanthate with either dithiophosphate (DTP) or dithiocarbamate (DTC) has been reported to increase the flotation performance of several sulphide flotation operations.
Castelyn, Daniel Gregory
core +1 more source