Results 61 to 70 of about 39,257 (210)

Advanced solid elements for sheet metal forming simulation [PDF]

open access: yes, 2016
The solid-shells are an attractive kind of element for the simulation of forming processes, due to the fact that any kind of generic 3D constitutive law can be employed without any additional hypothesis.
Flores, Fernando G   +3 more
core   +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

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

Cálculo integral [PDF]

open access: yes, 2011
Enginyeria Industrial.
Campos, Beatriz, Chiralt, Cristina
core  

The End of Amnesia: Measuring the Metallicities of Type Ia SN Progenitors with Manganese Lines in Supernova Remnants [PDF]

open access: yes, 2009
The Mn to Cr mass ratio in supernova ejecta has recently been proposed as a tracer of Type Ia SN progenitor metallicity. We review the advantages and problems of this observable quantity, and discuss them in the framework of the Tycho Supernova Remnant ...
Amedeo Tornambe   +9 more
core   +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

Kishimoto, Satoko; Lobina, Emanuele i Petitjean, Olivier (eds.) (2015). Un futur per l’aigua pública: L’experiència mundial de la remunicipalització

open access: yesDocuments d'Anàlisi Geogràfica, 2017
Kishimoto, Satoko; Lobina, Emanuele i Petitjean, Olivier (eds.) (2015) Un futur per l’aigua pública: L’experiència mundial de la remunicipalització Amsterdam, Londres, París, Ciutat del Cap i Brussel·les: Transnational Institute (TNI), Public Services ...
Maria Vallès Casas
doaj   +3 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

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

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