Results 111 to 120 of about 639,476 (304)

Thermodynamics of combustion gases : general considerations [PDF]

"For a theoretical description of power plants that derive their energy from the combustion of a fuel, it is necessary to solve, to an appropriate degree of precision, a hydrodynamic problem that requires for its solution a knowledge of the thermodynamic

core  

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

Advanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar, Shobhit Pratap Singh, Gaurav Mohanty, Praveen Kumar   +3 more
wiley   +1 more source

Adaptação de um sistema de medição de gases dissolvidos em óleo mineral isolante para monitoração de múltiplos transformadores de potência [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Metrologia Científica e IndustrialTransformadores de potência são equipamentos caros e com amplo uso em subestações de transmissão e de ...
Cardoso, Patrick Mendes
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Electrodeposition in Structural Lattices of Variable Architectures

Advanced Engineering Materials, EarlyView.
Electrodeposition enables geometry‐sensitive, autonomous void filling while simultaneously tuning chemical and mechanical properties. The development of approaches that can autonomously fill and heal material voids and yield composites with tailorable properties is increasingly relevant in engineering.
Yeong‐Man Kwon, Jingwen Zhang, Guido Musso, Alessandro F. Rotta Loria   +3 more
wiley   +1 more source

Condensação em superfícies expostas a fluxo de vapor de água ascendente na presença de gases não condensáveis [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2011O presente trabalho visa estudar os aspectos fundamentais da aplicação de uma placa refrigerada ...
Czubinski, Fernando Freitas
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Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel

Advanced Engineering Materials, EarlyView.
Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe, Louis Becker, Gaurav Kanu, Thomas F. Headen, Dirk Honecker, Gabi Schierning, Santiago Benito, Sebastian Weber, Klara Lünser, Sabrina Disch   +9 more
wiley   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Gyroid Structured Globugraphite Carbon Foam With Hierarchical and Tailored Pore Size

Advanced Engineering Materials, EarlyView.
Secondary sacrificial templates were designed and printed to create a defined network within a porous carbon. Lattices thermally degrades during the sintering process. Lattices are imprinted into the ceramic template and transferred to the morphology of Globugraphite.
Christiane Roller, Justin Neumann, David Ploch, Lennard M. Flohr, Julian Karsten, Fabian A. Riebesehl, Bodo Fiedler   +6 more
wiley   +1 more source

Los primeros minutos del efecto invernadero

Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2014
Esta actividad práctica muestra cómo determinados gases absorben la radiación infrarroja (de longitud de onda larga), lo cual permite explicar lo que ocurre a gran escala en la atmósfera de la Tierra en el llamado «efecto invernadero».
Josep Corominas
doaj  

Assessment of NOx Levels in an Underground Hospital Car Park: Implications for Occupational and Environmental Health

Applied Sciences
Environmental air pollution poses a significant threat to human health, with nitrogen oxides (NOx) identified as contributors to respiratory and cardiovascular diseases.
Hector Garcia-Gonzalez, Teresa Lopez-Pola, Daniel Martinez-Gonzalez, Jesus Alonso-Barcena   +3 more
doaj   +1 more source