Results 41 to 50 of about 1,926 (136)

Dr. Nathan M. Newmark

Prisma Tecnológico, 2021
Nathan M. Newmark fue un educador e ingeniero de fama internacional. Fue ampliamente reconocido por sus investigaciones en la ingeniería estructural y en la dinámica estructural en la University of Illinois at Urbana-Champaign (UIUC), y por sus ...
Ramiro Vargas
doaj   +1 more source

The structural basis for the broad aldehyde specificity of the aminoaldehyde dehydrogenase PauC from the human pathogen Pseudomonas aeruginosa

Protein Science, Volume 34, Issue 5, May 2025.
Abstract Despite significant differences in size and formal charge, the aldehyde dehydrogenase PaPauC (PA5312) from Pseudomonas aeruginosa PAO1 efficiently catalyzes the NAD+‐dependent oxidation of the aminoaldehydes formed in polyamines degradation. We report here that PaPauC also oxidizes 4‐guanidinebutyraldehyde, formed in one arginine degradation ...
Yudy V. Cardona‐Cardona, Lilian González‐Segura, Rogelio Rodríguez‐Sotres, Javier Andrés Juárez‐Díaz, Carlos Mújica‐Jiménez, Ignacio Regla, Manuel López‐Ortiz, Rosario A. Muñoz‐Clares   +7 more
wiley   +1 more source

Acoustic Rayleigh Wave Turbulence in Soft Viscoelastic Matter

Advanced Science, Volume 12, Issue 15, April 17, 2025.
Discrete acoustic Rayleigh wave turbulence (DARWT) is observed on the free surface of viscoelastic materials under monochromatic excitation. Governed by bulk shear rigidity supporting inertial modes against surface tension, the nonlinear Rayleigh waves exhibit distinct power‐law scaling and turbulence features in their Kolmogorov–Zakharov spectra. This
Mikheil Kharbedia, Horacio López‐Menéndez, Basilio Javier García, Manuel G. Velarde, Francisco Monroy   +4 more
wiley   +1 more source

Global and Local Shielding/Deshielding Variation in C60 and C70 Fullerenes Upon Reduction: Evaluation of Aromaticity, 13C‐NMR and Anisotropy Patterns

Chemistry – A European Journal, Volume 31, Issue 12, February 25, 2025.
The six‐fold reduction of C60 and C70 fullerenes modifies the magnetic response of the π electrons enabling global and local variations of shielding/deshielding regions along different orientations of the external field which are represented in the variations of 13C‐NMR shifts given by the σ33 shielding component under the principal axis system (PAS ...
Nickolas D. Charistos, Samuel R. Lawrence, Alvaro Muñoz‐Castro   +2 more
wiley   +1 more source

Condiciones de habitabilidad de viviendas para personas mayores. Revisión de criterios de diseño

Informes de la Construccion
El articulo problematiza en la necesidad de estándares de diseño y pautas arquitectónicas para adaptaciones de viviendas de personas mayores con y sin discapacidad para disminuir riesgos en las actividades diarias en sus viviendas.
Claudia Valderrama-Ulloa, Cristian Schmitt, Eliana Ortiz Velosa, Juan Pablo Marchetti, Viviana Bucarey   +4 more
doaj   +1 more source

Programmable Truncated Cuboctahedral Origami Metastructures Actuated by Shape Memory Polymer Hinges

Advanced Theory and Simulations, Volume 7, Issue 12, December 2024.
Origami‐inspired structures are gaining attention for their unique mechanical properties. This article introduces a family of truncated cuboctahedral designs using shape memory polymers (SMPs) to enable programmable mechanical properties and shape memory behavior.
Yao Chen, Zerui Shao, Jian Feng, Pooya Sareh   +3 more
wiley   +1 more source

Metodología de diseño sobre FPGA en un curso de sistemas digitales

Iteckne, 2012
Se presenta en este trabajo una metodología para el diseño de sistemas digitales sobre FPGA (Field Programmable Gate Array). Esta metodología inicia con el análisis de requerimientos del cliente y abarca hasta la implementación final en un dispositivo ...
Jose Luis Uribe Aponte, Alejandra María Gonzáles Correal, Alejandro Forero Guzmán, Francisco Fernando Viveros Moren, Juan Carlos Giraldo Carvajal   +4 more
doaj   +1 more source

Multi‐objective assessment of the water‐energy‐environment‐food nexus involving a life cycle assessment approach

Engineering Reports, Volume 6, Issue 12, December 2024.
Two approaches to environmental impacts, LCA and local impacts, are compared to assess their effect on the optimaldesign of water and energy supply systems. The multi‐objective approach makesit possible to evaluate many objective functions and identify conflicts andsynergies in a simple way to accelerate decision‐making processes.
Jesús Eduardo Rodríguez‐Gutiérrez, Brenda Ríos‐Fuentes, José Luis Altamirano‐Corona, Alejandro Estrada‐Baltazar, Luis Fabián Fuentes‐Cortés   +4 more
wiley   +1 more source

Benchmark para la Evaluación de Algoritmos de Auto-ajuste de Controladores PID

Revista Iberoamericana de Automática e Informática Industrial RIAI, 2011
Resumen: En este documento se propone un benchmark para la evaluación de algoritmos de auto-ajuste de controladores PID. Para ello se definen índices cuantitativos que permiten medir el comportamiento de los algoritmos, tanto durante la realización del ...
Julio A. Romero, Roberto Sanchis
doaj   +1 more source

Designing circular economy strategies in distributed generation for small‐ and medium‐sized enterprises using Monte Carlo simulation

Journal of Industrial Ecology, Volume 28, Issue 5, Page 1242-1255, October 2024.
Abstract The circular economy (CE) strategies in energy communities enable firms to efficiently manage the excess of photovoltaic energy they produce, and thereby enhance their sustainability. Thus, the present research aims to compare the economic and financial profitability and greenhouse gas (GHG) emissions of shared photovoltaic self‐consumption ...
Jaime González‐Domínguez, Gonzalo Sánchez‐Barroso, Francisco Zamora‐Polo, Justo García‐Sanz‐Calcedo   +3 more
wiley   +1 more source