Results 131 to 140 of about 459,740 (195)

Lead free piezoelectric ceramics based on Bi0.5(Na0.8K0.2)0.5TiO3 y K0.5Na0.5NbO3 systems [PDF]

open access: yes, 2013
Los materiales cerámicos basados en circonato-titanato de plomo, Pb(Zr,Ti)O3(PZT), son muy conocidos por sus excelentes propiedades piezoeléctricas. Si bien, estos materiales se producen generalmente a partir de la técnica de mezcla de óxidos, la cual es
Camargo, Javier Eduardo   +5 more
core   +1 more source

Risk‐Targeted Seismic Design Maps for Mexico

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 2, Page 336-349, February 2026.
ABSTRACT Risk‐targeted seismic design maps for Mexico are presented. Risk‐targeted approach establishes an acceptable risk level, measured with the annual collapse probability, to determine seismic design coefficients. Seismic design maps are calculated for an annual probability of collapse of 1 × 10−4 and 2 × 10−4.
Raúl Sandoval, Mario Ordaz
wiley   +1 more source

Crane Mechanical [PDF]

open access: yes, 2015
This report explains the structural and mechanical design of a crane located in a offshore platform. The introduction summarizes the two main parts of the project, the structural calculus of the crane and the mechanical design of the equipment.
Rodríguez Estrada, Mario
core  

A multiscale approach to evaluate the effect of different extraction and pre‐treatment methodologies on physicochemical properties of cashew (Anacardium occidentale L.) nut shell liquid

open access: yesJournal of Chemical Technology &Biotechnology, Volume 101, Issue 2, Page 266-275, February 2026.
Abstract BACKGROUND Cashew nutshell liquid (CNSL) is an agro‐industrial residue from cashew production that has gained relevance due to its possibilities to generate valuable by‐products. Although lab‐scale CNSL extraction has been studied in terms of yield and energy efficiency, the effect of industrial‐scale extraction and nut pre‐treatment methods ...
Johan León   +7 more
wiley   +1 more source

Una propuesta de trabajo colaborativo con libre elección de TIC en el aula de matemática [PDF]

open access: yes, 2014
Asistimos a una auténtica revolución en relación al acceso a la tecnología y consecuentemente se nos impone una inminente reconceptualización de los diseños curriculares actuales. Los docentes universitarios enfrentamos el desafío de poder incorporar las
Có, Patricia   +2 more
core  

Integrated green extraction of phenolic compounds and fermentable sugars from grapefruit peel using ultrasound and enzymatic hydrolysis

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 3, Page 1839-1851, February 2026.
Abstract BACKGROUND Valorizing sugar‐rich food waste in biorefineries offers a sustainable route to bio‐based products. Grapefruit peel (GP), representing about 50% of the fruit's weight, is rich in sugars (soluble and insoluble) and polyphenols such as flavonoids.
María del Prado García‐Aparicio   +2 more
wiley   +1 more source

Reingeniería en máquina para desgaste tipo pin sobre disco [PDF]

open access: yes, 2016
En este trabajo se hace un resumen del proceso realizado para poner en funcionamiento la máquina para evaluar el desgaste por deslizamiento en materiales de ingeniería, tipo pin sobre disco, ubicada en el laboratorio de Tribología de la Universidad ...
Cardona Bedoya, David   +1 more
core  

Hydrogen Permeation in Polyethylene: Effect of Crystallinity on Gas Transport Coefficients at Different Temperatures

open access: yesJournal of Polymer Science, Volume 64, Issue 3, Page 608-621, 1 February 2026.
Correlation of H2 permeability in semicrystalline polymers used as liners in Type IV composite tanks, versus temperature and crystallinity. ABSTRACT Semicrystalline polymers such as high‐density polyethylene (HDPE) are increasingly adopted as liners in compressed hydrogen storage tanks, due to low weight, easy processing, and high durability, together ...
Lorenzo Merlonghi   +3 more
wiley   +1 more source

Guiding AlphaFold predictions with experimental knowledge to inform dynamics and interactions with VAIRO

open access: yesProtein Science, Volume 35, Issue 2, February 2026.
Abstract Structural predictions have reached unprecedented accuracy. They leverage sequence‐specific data to capture all potential interactions a sequence has evolved to fulfill. AlphaFold derives information from three sources: learned parameters capturing intrinsic amino acid secondary structure and environment propensity; models of related proteins ...
Josep Triviño   +14 more
wiley   +1 more source

Increasing the added‐value of a plant‐based waste: model salad dressing based on an emulgel containing microfluidized hull pea fiber

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 2, Page 1115-1125, 30 January 2026.
Abstract BACKGROUND Changes in consumer habits have driven the food industry to develop new recipes based on organic ingredients. Furthermore, the use of waste‐derived plant‐based raw materials, such as pea hull fibers, is consistent with sustainable development.
María‐Carmen García‐González   +3 more
wiley   +1 more source

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