Results 31 to 40 of about 131,717 (256)
Análisis de costos por sustitución el energético de carbón mineral a gas natural en Industria Cerámica. [PDF]
, 2023 Análisis de costos por sustitución el energético de carbón mineral a gas natural en Industria CerámicaAnalysis of costs for energy substitution from mineral coal to natural gas in the Ceramic IndustryEspecialización en Gerencia Estratégica de Costos ...
Peña Vega, Juan Carlos +1 more
core
Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition
Advanced Engineering Materials, EarlyView.AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley +1 more source
Plants, 2020 Soil organic matter carbon (CSOM) compounds degradation was observed in long-term field experiments with silage maize monoculture. Over a period of 26 years, the content of carbon in topsoil decreased by 22% in control unfertilized plots compared to 25 ...
Jiří Balík +4 more
doaj +1 more source
Shuitu baochi tongbao, 2022 [Objective] The effects of different forms of iron and aluminum oxides on soil organic carbon content in native coniferous and broadleaf plantations in south subtropical region of China were studied in order to provide a scientific basis for further ...
Zhu Hao +4 more
doaj +1 more source
Evaluación del comportamiento del concreto con sustitución de cemento por escoria de carbón mineral de hornos de cocción de ladrillos, San Jerónimo - Cusco [PDF]
, 2023 El presente estudio “Evaluación del comportamiento del concreto, con sustitución porcentual de cemento por escoria de carbón mineral de los hornos de cocción de ladrillos -San Jerónimo – Cusco”, planteando por propósito determinar el nivel de ...
Auccapuri Quispetupa, Edison
core
Advanced Functional Materials, EarlyView.Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum +5 more
wiley +1 more source
Evaluación del comportamiento mecánico de una mezcla asfáltica con cenizas de carbón mineral, Lima, 2022 [PDF]
, 2022 Esta investigación determina la influencia en el comportamiento mecánico de una mezcla asfáltica al adicionarle carbón Mineral en diferentes porcentajes – Lima 2022.
Paz Castillo, Hilarion +1 more
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Advanced Functional Materials, EarlyView.Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou +5 more
wiley +1 more source
Deducción de la fórmula de la resistencia esférica en un ensayo experimenta
Campus, 2016 El objetivo de esta investigación fue deducir la fór- mula de un modelo de resistencia esférica. Para ello, se efectuó el ensayo experimental de un con- ductor esférico y propuso la implementación de reóstatos esféricos y elipsoidales.
Carlos H.J. Calderón
doaj
Application of δ13C and δ15N isotopic signatures of organic matter fractions sequentially separated from adjacent arable and forest soils to identify carbon stabilization mechanisms [PDF]
Biogeosciences, 2011 Identifying the chemical mechanisms behind soil carbon bound in organo-mineral complexes is necessary to determine the degree to which soil organic carbon is stabilized belowground.
M. Sommer +4 more
doaj +1 more source