Results 141 to 150 of about 1,054,754 (307)

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

open access: yesAdvanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi   +3 more
wiley   +1 more source

El Sol de Occidente

open access: yesImafronte, 2021
Luis Alcalá-Galiano Pareja
doaj   +1 more source

Siguiendo el sol [PDF]

open access: yesHispanic American Historical Review, 1954
openaire   +1 more source

El quinto sol

open access: yes, 2017
Era su quinta noche en la sierra...¡Y había llegado!...Había cruzado montes, vadeado ríos...subido peñas...Allá abajo donde aún la selva parecía impenetrable había sentido miedo, ¡mucho miedo!, pero ahora, tirado en el rincón de la choza, sobre el suelo, no sentía ese miedo; era más bien frustación... Sí, eso era....¡Una amarga frustación!
openaire   +1 more source

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

open access: yesAdvanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah   +5 more
wiley   +1 more source

Hel.lenismes al català medieval: bilingüisme o llengua franca? [PDF]

open access: yes, 1999
Les relacions entre dues llengües mediterrànies com ho són el grec i el català, no han estat objecte de cap mena d'anàlisi exhaustiva, i tan sols hi podem referir els treballs d'un sol estudiós.
Redondo Sánchez, Jordi
core   +1 more source

A Comparative Study on Early‐Stage Icing Evaluation Techniques for Passive Ice Protection Systems

open access: yesAdvanced Materials Interfaces, EarlyView.
This study addresses the lack of standardized methodologies for evaluating the early‐stage icing performance of passive ice protection systems. A unified experimental protocol is proposed and applied to representative hydrophilic and hydrophobic surfaces under controlled conditions.
Lorenzo Facco   +4 more
wiley   +1 more source

El turismo de aventura: concepto, evolución, características y mercado meta. El caso de Andalucía [PDF]

open access: yes, 2013
La actividad turística se conforma en Andalucía como uno de los sectores económicos principales, siendo el turismo de sol y playa la actividad turística que más turistas e ingresos genera.
Cañero Morales, Pablo   +3 more
core  

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins   +8 more
wiley   +1 more source

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