Results 51 to 60 of about 67,878,768 (340)

Diseño e implementación de un software scada para el módulo de temperatura del CEMA

open access: yesIndustrial Data, 2011
El presente artículo presenta los resultados del proyecto de investigación que tuvo como objetivo principal diseñar e implementar un software SCADA en el modulo de temperatura del CEMA (Centro de Manufactura Avanzada, de la UNMSM); al final del proyecto ...
Alfonso Chung Pinzás, Edgar Ruiz Lizama
doaj   +1 more source

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

open access: yesAdvanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello   +5 more
wiley   +1 more source

Sistema de control para reducir el consumo de hidrógeno en celdas de combustible PEM considerando incertidumbres paramétricas

open access: yes, 2016
Este articulo presenta un sistema de control para reducir el consumo de hidrogeno para una celda de combustible de Membrana de Intercambio Protonico, considerando incertidumbres parametricas.
Richard Rios   +2 more
semanticscholar   +1 more source

Characterizing Biopolymer Electrolytes in Zinc–Air Batteries: Challenges, Best Practices, and a Robust Workflow Guiding Future Research Paths

open access: yesAdvanced Energy Materials, EarlyView.
Bio‐based gel polymer electrolytes promise sustainable, mechanically adaptable zinc–air batteries, yet their progress is constrained by inconsistent characterization. This review critically links formulation, structure, interfaces, and cell performance, identifies methodological gaps under alkaline operating conditions, and proposes application ...
Matteo Milanesi   +6 more
wiley   +1 more source

Do More Open Economies Export Less Diversely in Brazilian Agribusiness?

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper asks whether municipalities with a larger export‐to‐revenue ratio display a more concentrated bundle of exported goods in Brazilian agribusiness. Recent advances in export imputation for Brazilian municipalities allow for an analysis of the concentration profile of each municipality and its association with export openness.
Alan Leal, Michelle Marcia Viana Martins
wiley   +1 more source

Sistema de control de pago de matrículas y aranceles de la Universidad de las Regiones Autónomas de la Costa Caribe Nicaragüense, Recinto Las Minas, 2015

open access: yesCiencia e Interculturalidad, 2016
Se desarrolló un sistema de control de pagos de matrículas y aranceles de los estudiantes en la URACCAN, Recinto las Minas Siuna, que almacena la información de forma efectiva. Automatiza, registra y brinda información en tiempo real.
Esmir Noel Roque Castellano   +2 more
doaj   +1 more source

Synergetic Combination of Carbon Xerogels, Graphene Oxide and nano‐ZnO for Aqueous and Organic Supercapacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
This work proposes the synthesis of carbon‐based nanostructured materials obtained using ZnO as both nanos‐ template and catalysts simultaneously. During the synthesis, GO was used as a stabiliser, preventing the collapse of the 3D structure and improving its properties in terms of capacitance and surface area.
Rusbel Coneo‐Rodríguez   +5 more
wiley   +1 more source

Sound Financial Practices and Entrepreneurs' Socio‐Environmental Commitment: Revealing the Role of Financial Barriers

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Small enterprises (SEs) constitute a major component of economic systems, and their socio‐environmental commitment is critical for promoting societal well‐being. This paper examines the direct effect of sound financial practices on socio‐environmental commitment and evaluates the mediating role of financial constraints—specifically debt and ...
Marcos Álvarez‐Espiño   +2 more
wiley   +1 more source

Diseño e implementación de un sistema de control y monitoreo basado en HMI-PLC para un pozo de agua potable

open access: yes, 2014
Este trabajo se enfoca al diseno e implementacion en un banco de pruebas de un sistema de control y monitoreo de descarga de agua en un pozo de agua potable, utilizando equipo especializado para automatizacion.

semanticscholar   +1 more source

Shazam! podcast del sistema Nacional de Bibliotecas SENA. 3 : érase una vez

open access: yes, 2020
En esta tercera entrega de la serie de podcast “Shazam!”, la Gestora Sistema de Bibliotecas del SENA, Martha Luz Gutiérrez narra la historia de las bibliotecas de la entidad desde las primeras bibliotecas llamadas “unidades de información técnica”, los ...

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