Results 41 to 50 of about 666 (171)

Joaquim Torrens-Ibern, enginyer savi i compromès

open access: yesTerminàlia, 2011
Semblança i relació amb la terminologia.
Jaume Bassa
doaj  

Electrochemical extraction of chlorides from reinforced concrete: variables affecting treatment efficiency

open access: yesMateriales de Construccion, 2006
This paper reports the results of applying electrochemical chloride extraction (ECE) to a series of chloride-contaminated concrete specimens. Experimental conditions were varied to study the efficiency of this technique under different circumstances. The
M. J. Sánchez   +2 more
doaj   +1 more source

A Hybrid Pressure Formulation of the Face‐Centred Finite Volume Method for Viscous Laminar Incompressible Flows

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 10, 30 May 2025.
ABSTRACT This work presents a hybrid pressure face‐centred finite volume (FCFV) solver to simulate steady‐state incompressible Navier‐Stokes flows. The method leverages the robustness, in the incompressible limit, of the hybridisable discontinuous Galerkin paradigm for compressible and weakly compressible flows to derive the formulation of a novel, low‐
Matteo Giacomini   +4 more
wiley   +1 more source

Enginyeria gràfica bombí de porta

open access: yes, 2022
Diseny gràfic d'un bombí de seguretat de gruix estàndard amb clau tipus dent de serra per a qualsevol porta. Els bombins de les portes són mecanismes que treballen amb força mecànica provocada per l’usuari, persona que es disposa a obrir una porta, de manera que al introduir la clau dins d'un rotor que es troba fixat dins d’una carcassa a mesura, fa ...
Farrerons Vidal, Óscar   +3 more
openaire   +2 more sources

Fundació Torrens-Ibern: “Tècnica i ciència en català”

open access: yesTerminàlia, 2011
Presentació dels objectius i de les activitats de la Fundació Torrens-Ibern.
Jaume Bassa
doaj  

Relación estructura-propiedades en aleaciones inteligentes con memoria de forma Cu-Al-Ag de alta temperatura de transformación martensítica termoelástica

open access: yesRevista de Metalurgia, 1998
En los últimos años, se han desarrollado nuevas aleaciones con memoria de forma, de altas temperaturas de transformación martensítica. Sin embargo, las temperaturas de transformación martensítica más elevadas son inferiores a 200°C e implican aleaciones ...
J. M. Guilemany   +2 more
doaj   +1 more source

2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration

open access: yesAdvanced Functional Materials, Volume 35, Issue 16, April 18, 2025.
Intercalating multivalent cations into 2D vermiculite nanolaminates significantly improves the structural stability and sieving capabilities of membranes in both aqueous and organic media, rendering them effective for organic solvent nanofiltration. Abstract Membrane separation technology has found widespread application in molecular sieving and water ...
Wensen Wang   +17 more
wiley   +1 more source

Monolithic and Staggered Solution Strategies for Constrained Mechanical Systems in Optimal Control Problems

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 6, 30 March 2025.
ABSTRACT This paper deals with the optimal control of constrained mechanical systems, with potential additional kinematic constraints at the final time. Correspondingly, the equations of motion of the underlying mechanical system assume the form of differential‐algebraic equations with end constraints.
Ashutosh Bijalwan   +3 more
wiley   +1 more source

Exploring the Limits and Balancing Efficiency, Transparency, and Esthetics in Ultrathin a‐Si:H Transparent Photovoltaic Devices

open access: yesSolar RRL, Volume 9, Issue 3, February 2025.
Alvarez‐Suarez et al. explore the limit tradeoff in efficiency and transparency esthetics for ultrathin a‐Si:H/oxide TPV devices. In this work, a complete optoelectronic characterization is done, and the optimal absorber thickness maximizing all the TPV parameters is assessed.
Gustavo Alvarez‐Suarez   +8 more
wiley   +1 more source

Introducció

open access: yesTemes de Disseny, 2018
En el primer número de Temes de Disseny, l’any 1986, amb una visió de futur pionera, Jordi Pericot mencionava les següents paraules: “Temes de Disseny respon a la necessitat d'agrupar iniciatives en matèria d'investigació que ens permetin formular noves
Oscar Tomico, Laura Clèries
doaj   +3 more sources

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