Results 31 to 40 of about 207,837 (306)

Optimization of the diffraction efficiency in photorefractive crystals [PDF]

open access: yes, 2017
The aim of this work is to study and to optimize the diffraction efficiency in sillenite BTO crystals. A theoretical analysis, where the effects of coupling beams are significant,is carried on. In addition, non-mobile transmission gratings are considered.
Arias Hernández, Néstor Alonso   +3 more
core   +2 more sources

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

open access: yesAdvanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Built‐In Interfacial Electric Field in Hydroxyl‐Terminated MXene/COF Heterostructures for Enhanced Solid‐State Supercapacitors

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyl‐terminated MXene is integrated with a redox‐active covalent organic framework through electrostatic self‐assembly followed by hydrothermal treatment to construct MXene/COF heterostructures with a built‐in interfacial electric field. Termination‐controlled interfacial electronic modulation induces charge redistribution and favorable band ...
Cheru Fekadu Molla   +4 more
wiley   +1 more source

Enlaces Ferroviarios de Barcelona

open access: yesInformes de la Construccion, 1975
Se describe en este artículo, de forma superficial —ya que en un futuro próximo se publicarán artículos más completos—, la importante obra de conexión de todas las líneas de ferrocarril que van a la capital, transformación de las estaciones de superficie
Equipo Editorial
doaj   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

open access: yesAdvanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo   +2 more
wiley   +1 more source

La alfabetización digital y el desarrollo de competencias ciudadanas

open access: yesRevista Iberoamericana de Educación, 2006
Es casi un lugar común describir las bondades de las tecnologías de la información y la comunicación para cada uno de los aspectos de la sociedad moderna.
Begoña Gros, David Contreras
doaj  

Light‐Actuated Fiber‐Climbing Inchworm Robot Toward Endoluminal Navigation

open access: yesAdvanced Functional Materials, EarlyView.
A kirigami‐inspired soft inchworm robot harnesses optical energy from a customized side‐emitting optical fiber, guaranteeing its propulsion along the fiber body. The wavelength‐selective responsiveness of dye‐functionalized liquid crystal elastomers and the application of temporal illumination patterns enable sequential control of robot components. The
Antonio Lobosco   +6 more
wiley   +1 more source

Press clipping and the use of links from the perspective of Copyright

open access: yesDerecho PUCP, 2015
This paper analyses the protection offered by Copyright to newspaper articles and, from here, it examines the ways in which the articles are used by press clipping companies.
Jorge Córdova Mezarina
doaj  

Modelo de motivación en pequeñas empresas: el caso de “Enlaces Inalámbricos Digitales S.A.S.” [PDF]

open access: yes, 2013
La presente monografía pretende hacer un recorrido por las teorías sobre la motivación laboral de las personas en el caso de estudio de la empresa “Enlaces Inalámbricos Digitales S.A.S.” que actualmente funciona con siete empleados, medir el nivel de ...
Betancourt Giraldo, Yury Andrea   +3 more
core  

Coating Artificial Spider Silk Fiber with Magnetic FeCo: An Effective Strategy for Creating a Flexible Magneto‐Responsive Material

open access: yesAdvanced Functional Materials, EarlyView.
An original method is presented for producing artificial spider silk fibers with magnetic and magnetomechanical responsiveness, which consists in coating them with a nanometer‐thick layer of FeCo alloy by sputtering deposition. The challenge of combining organic materials and inorganic magnetic nanostructures is addressed, thus taking a step forward ...
Filippo Lanaro   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy