Results 111 to 120 of about 141,283 (195)

Diseño de circuitos analógicos de baja tensión y bajo consumo empleando el seguidor de tensión FVF

open access: yes, 2003
En los últimos años, el Grupo de Investigación de Tecnología Electrónica de la Universidad de Sevilla, ha desarrollado una línea de investigación en el diseño de circuitos analógicos de baja tensión y bajo consumo para comunicaciones. Esta Tesis pretende
Gómez Galán, Juan Antonio
core   +1 more source

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz   +5 more
wiley   +1 more source

Lesiones dentarias cervicales inducidas por oclusión traumática

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 1998
Some studies had supported the theory that stress concentration in the cervical area of the teeth is responsible not only for the development of dental cervical lesions but also for restorations retention failures.
Gerardo Becerra-Santos
doaj  

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

open access: yesAdvanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw   +3 more
wiley   +1 more source

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

open access: yesAdvanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová   +6 more
wiley   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan   +4 more
wiley   +1 more source

EVOLUTION OF THE RENAL REPLACEMENT THERAPY

open access: yesRevista Ciencias Biomédicas, 2015
The chronic renal disease (CRD) is a public health problem worldwide. The check of high costs of Colombia for 2013 reported the existence of 22.926 patients in dialysis therapy, 5.941 with kidney transplantation and 1.015.124 patients with CRD in ...
Coronado-Daza Jorge Antonio
doaj  

Conceptos distribución eléctrica en alta tensión (A.T.)

open access: yes, 2020
Conceptos distribución eléctrica en alta tensión (A.T.)https://media.upv.es/player/?id=c89a9870-7d4d-11ea-ab84-976d93fed259Cárcel Carrasco, FJ. (2020). Conceptos distribución eléctrica en alta tensión (A.T.).
Cárcel-Carrasco, Javier
core  

Determinación de la resistencia mecánica a tensión y cizalladura de la guadua angustifolia kunth [PDF]

open access: yes, 2005
Para Guadua angustifolia Kunth fueron determinados los valores últimos de los esfuerzos a tensión y cizalladura. Los resultados estadísticos mostraron valores promedios a Tensión y cizalladura de 190,70 MPa (1945,92 kgf/cm2) y 5,57 MPa (56,84 kgf/cm2 ...
Ciro Velásquez, Héctor José
core  

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

open access: yesAdvanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin   +16 more
wiley   +1 more source

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