Results 111 to 120 of about 1,034,247 (306)

Projeto QUAMIS: Avaliação da Qualidade do Ambiente Interior em Salas de Aula [PDF]

, 2013
O projeto QUAMIS- Qualidade do ambiente interior em salas de aula desenvolvido pela Escola Superior de Tecnologia e Gestão do Instituto Politécnico de Viseu- ESTGV/IPV, envolvendo elementos dos Departamentos de Ambiente e de Engenharia Civil, tem como ...
Almeida, Ricardo, Brás, Isabel, Figueirinha, Artur, Lemos, Luís, Lopes, Sérgio, Pinho, Paulo, Pinto, Manuel, Simões, Luís   +7 more
core  

Monitorização e controlo da qualidade do ar interior

, 2015
O aumento dos custos energéticos na década de 70 do século passado levou o homem a adotar formas de construção energeticamente mais eficientes. Estas mudanças construtivas tiveram reflexos positivos na poupança de energia e no conforto térmico, porém reduziram substancialmente as taxas de renovação de ar e, consequentemente, ao aumento da acumulação do
Fernandes, Samuel, Igrejas, Getúlio, Feliciano, Manuel   +2 more
openaire   +2 more sources

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source

Neutral Mass Spectrometer (NMS) for the Lunar Atmosphere and Dust Environment Explorer (LADEE) Mission [PDF]

, 2011
The Lunar Atmosphere and Dust Environment Explorer (LADEE) mission currently scheduled for launch in early 2013 aboard a Minotaur V will orbit the moon at a nominal periselene of 50 km to characterized the lunar atmosphere and dust environment.
Benna, Mehdi, Collier, Michael R., Hodges, Richard, King, Todd T., Mahaffy, Paul R.   +4 more
core   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Ventilação, Qualidade do Ar e Saúde em creches e infantários - Resultados preliminares do projeto ENVIRH [PDF]

, 2012
É do conhecimento geral que a qualidade do ar interior influencia a qualidade de vida dos ocupantes dos edifícios e que pode ter implicações significativas no seu estado de saúde.
Aelenei, Daniel, Cano, Manuela, Martins, Pedro, Mendes, Ana, Neuparth, Nuno, Nogueira, Susana, Paixão, Paulo, Papoila, Ana Luísa, Pinto, Armando, Pinto, Rosado, Proença, Carmo, Teixeira, João Paulo, Viegas, João   +12 more
core  

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Sistemas de Ventilação Natural/Mistos em Edifícios de Habitação. Implicações Construtivas [PDF]

, 2007
A eficiência energética dos edifícios é uma preocupação comum dos países da União Europeia tendo em atenção os compromissos do protocolo de Quioto, a dependência energética da Europa e o carácter limitado dos combustíveis fosseis.
Freitas, Vasco, Guimarães, Ana, Pinto, Manuel   +2 more
core  

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Automated 3D room mapping and real-time corner detection for Android-based AR systems

Results in Engineering
Augmented Reality (AR) is the transformation of human interaction with physical space by incorporating digital content into the real world. Among the most crucial factors in AR application success lies the accurate mapping of 3D space and correct corner ...
Balakrishnan Ramalingam, Abraham Sudharson Ponraj, Mukund Sharma, Rishabh Sharma, Mohamed Nabeel, Shivanshu Upadhyay, Mahapatra Aditya, Siddhant Arora, Mohanaprasad Kothandaraman   +8 more
doaj   +1 more source