Results 191 to 200 of about 81,565 (312)

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Impact of tectonic and stratigraphic evolution of Shushan Basin on hydrocarbon accumulation, north Western Desert, Egypt. [PDF]

Sci Rep
Fagelnour M, Farouk S, Sarhan MA.
europepmc   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

A prudent planetary limit for geologic carbon storage. [PDF]

Nature
Gidden MJ, Joshi S, Armitage JJ, Christ AB, Boettcher M, Brutschin E, Köberle AC, Riahi K, Schellnhuber HJ, Schleussner CF, Rogelj J.   +10 more
europepmc   +1 more source

Using Financial and Sustainability Ratios to Map Sectors. An Approach With Compositional Data

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The article aims to visualize in a single graph Spanish fish and meat processing companies with respect to solvency, energy, waste and water intensity and gender employment gap. These financial, environmental, and social indicators are ratios, which require specific statistical analysis methods.
Elena Rondós‐Casas, Núria Arimany‐Serrat, Miquel Carreras‐Simó, Germà Coenders   +3 more
wiley   +1 more source

Age is just a number: Examining the preservation of cells and soft tissues in Bothriolepis and other Devonian fish. [PDF]

PLoS One
Rogoff CL, Ullmann PV.
europepmc   +1 more source

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell, Dennis Chacko, Kunran Yang, Jace Carsten, Junchen Liu, Matthew Housley, Fanxing Li   +6 more
wiley   +1 more source

Advanced integrated strategy for structural and mineralogical exploration of inaccessible regions employing remote sensing and multiscale analysis of aeromagnetic data. [PDF]

Sci Rep
Eldosouky AM, El-Wahed MAA, Attia M, Saada SA, Abbas MA.   +4 more
europepmc   +1 more source

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source

The geologic history of marine dissolved organic carbon from iron oxides. [PDF]

Nature
Galili N, Bernasconi SM, Nissan A, Alcolombri U, Aquila G, Di Bella M, Blattmann TM, Haghipour N, Italiano F, Jaggi M, Kaplan-Ashiri I, Lee KS, Lechte MA, Magnabosco C, Porter SM, Rudmin M, Spencer RGM, Stocker R, Wang Z, Wohlwend S, Hemingway JD.   +20 more
europepmc   +1 more source