Results 51 to 60 of about 149,948 (280)

Clasificacao de obras em matéria de direito e ciencias politicas (Uma orientacao)

open access: yesFENIX, 2021
Orientaciones para la clasificación de obras en materia de derecho y ciencias políticas a cargo del Bibliotecario Jefe de la  Pontificia Universidad Católica de Sao  Paulo.  
openaire   +2 more sources

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat   +5 more
wiley   +1 more source

Citizen science in the Information Society. New world trends [PDF]

open access: yes, 2014
La E-Ciencia Ciudadana (eCC), también conocida como “ciberciencia”, es el nuevo término que se aplica a una práctica ya conocida -la participación de ciudadanos legos en proyectos científicos-, pero que el uso de las tecnologías de información y ...
Finquelievich, Susana   +1 more
core  

Resistencia a la corrosión de materiales utilizados para la fabricación de aretes perforantes para orejas

open access: yesRevista de Metalurgia, 2003
Aleaciones conteniendo níquel se han utilizado como substratos para la fabricación de aretes perforantes para orejas. Desafortunadamente, el níquel ha sido relacionado con el desarrollo de una reacción alérgica conocida como dermatitis de contacto ...
O. V. Correa   +3 more
doaj   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

Influencia de diferentes tratamientos termoquímicos en aceros sinterizados base molibdeno

open access: yesRevista de Metalurgia, 2001
Polvos prealeados de aceros con diferentes contenidos de Mo-Cu-Ni -C se compactaron a 700 MPa y se sinterizaron a 1.120 °C en atmósfera de 95 % N2-5 % H2.
N. Candela   +4 more
doaj   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

open access: yesAdvanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu   +4 more
wiley   +1 more source

FICHA TÉCNICA

open access: yesConexões: Ciência e Tecnologia, 2016
Revista Conexões - Ciência e Tecnologia
doaj   +7 more sources

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Selbstdenken und Stil bei J.G. Fichte und Goethe [PDF]

open access: yes, 2012
This essay shows how Goethe and Johann Gottlieb Fichte converge in a common supranational cultural ideal, in spite of their divergences in relation to their poetic and scientific approaches.
Greuel, Marcelo da
core  

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