Results 21 to 30 of about 63,610 (231)

Comparative field‐scale assessment of TLUD and Kon‐Tiki biochar systems: agronomic performance and net CO2e‐based techno‐economics

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Post‐harvest agricultural residues in Latin America are commonly underutilized, leading to greenhouse gas emissions and lost opportunities for bio‐based value creation. This study tests the hypothesis that decentralized, farmer‐scale pyrolysis technologies can deliver comparable agronomic benefits while exhibiting distinct techno‐economic and ...
Juan F. Saldarriaga, Thomas Käslin, Enara Fernández, Maider Amutio, Gartzen López, Laura Santamaria, Nausika Querejeta, Julián E. López   +7 more
wiley   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Bio-películas para el envasado de alimentos: proteínas y carbohidratos [PDF]

, 2014
Se utilizaron materiales provenientes de recursos renovables y desechos industriales para el desarrollo de películas poliméricas naturales y biodegradables con potencial aplicación en el envasado de alimentos.
Aranguren, Mirta Ines, Marcovich, Norma Esther, Moreira, Maria del Rosario, Pereda, Mariana, Roura, Sara Ines   +4 more
core   +1 more source

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá, Carlos Zaid Bustamante‐Pérez, José Manuel García‐Anaya, Ángel Tlacaelel Ortiz‐Manzano, Roeb García‐Arrazola, Eva Patricia Bermúdez‐García, Diana Iruretagoyena Ferrer, Miguel Ángel Pimentel‐Alarcón   +7 more
wiley   +1 more source

Prospective Portfolio Optimization With Asset Preselection Using a Combination of Long and Short Term Memory and Sharpe Ratio Maximization

IEEE Access
This research presents a novel portfolio optimization model that incorporates asset preselection. This model aims to demonstrate how using Long and Short-Term Memory and Sharpe Ratio Maximization can enhance the efficiency of portfolios.The suggested ...
Farshid Abdi, Shaghayegh Abolmakarem, Amir Karbassi Yazdi, Yong Tan, Italo Andres Marchioni Choque   +4 more
doaj   +1 more source

WSPLK: A systematic approach to the thermodynamic characterization of light and heavy Mexican crude oil

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A streamlined characterization framework (WSPLK) is presented for modelling complex reservoir fluids using cubic equations of state. The key methodological contribution is the introduction of a single global parameter ε directly into Pedersen's boiling‐point correlation, restoring pure‐component calibration and eliminating the need for ...
Angélica Merlo‐Robredo, Heber Barragán‐Mayet, Lourdes Mayet‐Cruz, José Fernando Barragán‐Aroche   +3 more
wiley   +1 more source

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume, Adalberto Noyola   +1 more
wiley   +1 more source

El proceso de diseño y desarrollo de nuevos productos y su relación con el marketing [PDF]

, 2012
Este trabajo, corresponde a la etapa inicial del proyecto de investigacion: El proceso de diseno y desarrollo de nuevos productos y su relacion con el marketing, que se realiza en el marco de la Beca de Estudio de la Comision de Investigaciones ...
Sierra, María Sol
core   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Identification of Dynamic Parameters in a DC Motor Using Step and Ramp Torque Response Methods

Sensors
DC motors play a fundamental role in robotic and mechatronic systems applied to the manufacturing industry; but broadly speaking, they are necessary in any system where motion is required.
Jorge Antonio Cardona Soto, Israel U. Ponce, Israel Soto, Miguel A. García, Guillermo Mejía   +4 more
doaj   +1 more source