Results 111 to 120 of about 3,882,887 (252)
Optimizing a Simple Natural Dye Production Method for Dye-Sensitized Solar Cells: Examples for Betalain (Bougainvillea and Beetroot Extracts) and Anthocyanin Dyes [PDF]
, 2019 We present a study about the sensitizers extracted from natural resources. This paper focuses on how to select, extract and characterize natural dyes, giving some guides to establish a protocol for the whole process of fabricating and using these dyes ...
Ariza Camacho, María Jesús +1 more
core +1 more source
A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller
International Journal of Adaptive Control and Signal Processing, EarlyView.Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg +5 more
wiley +1 more source
Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release
Advanced Engineering Materials, EarlyView.Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro +3 more
wiley +1 more source
Histiocitosis de células de Langerhans ósea a forma poliostótica.A propósito de un caso
Medisur, 2019 Se presenta el caso de un paciente masculino de 39 años de edad, con antecedentes de buena salud aparente que fue ingresado en la sala de clínica oncológica, por presentar dolores articulares en región costal, cervical y lumbo sacra que le dificultaban ...
Jorge César Pedroso Delgado +3 more
doaj +2 more sources
Diferencias clínicas y evolutivas de una población que precisa ingreso en un módulo penitenciario.
Psicosomática y Psiquiatría, 2023 Carla Albert Porcar +9 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
Contenido y características de la ivermectina en fórmulas magistrales
Revista Cubana de Medicina MilitarIntroducción: Tras la declaración de la COVID-19 como pandemia, la búsqueda de tratamientos se intensificó. En Perú, la ivermectina se propuso como tratamiento inicial por su supuesta seguridad, recomendándose para reducir la carga viral.
Jenny Rosalyn Huerta León +6 more
doaj
Medicina U.P.B.Objetivo: evaluar el efecto de la terapia de estimulación magnética transcraneal repetitiva (EMTr) en el tratamiento del dolor neuropático de origen oncológico y no oncológico, puesto que la EMTr es una alternativa innovadora para el manejo del dolor ...
Catalina Lopera Muñetón +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A sequence‐encoded supramolecular construct containing two accessible toeholds is developed herein for enabling multiple editing operations. By introducing specific input strands, it is possible to selectively erase or rewrite digital content through parallel or series toehold‐mediated strand displacement (PTMSD or STMSD).
Jakub Ossowski +3 more
wiley +1 more source
Determinación de metales en agua potable en Apurímac, Perú
Revista Cubana de Medicina MilitarIntroducción: La calidad del agua para consumo humano es fundamental para la salud pública, con un impacto más notable en áreas rurales. La presencia de metales pesados en el agua puede generar graves riesgos para la salud.
Jenny Rosalyn Huerta León +5 more
doaj