Results 61 to 70 of about 1,034,247 (306)

Balanced Convex Partitions of Measures in $\mathbb{R}^d$

open access: yes, 2011
We will prove the following generalization of the ham sandwich Theorem, conjectured by Imre B\'ar\'any. Given a positive integer $k$ and $d$ nice measures $\mu_1, \mu_2,..., \mu_d$ in $\mathbb{R}^d$ such that $\mu_i (\mathds{R}^d) = k$ for all $i$, there
Soberón, Pablo
core   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

Bioaerossóis bacterianos em um hospital

open access: yesRevista de Ciências Farmacêuticas Básica e Aplicada, 2005
A contaminação microbiológica de ambientes internos é afetada pela presença de bioaerossóis do ambiente externo e as geradas no próprio ambiente. O objetivo deste trabalho é relacionar a concentração de bioaerossóis encontrados em ambientes internos de ...
R.G. Pereira   +5 more
doaj  

Assessment of indoor air quality in elderly care centers, 2013-2014: GERIA project [PDF]

open access: yes, 2016
O risco da população idosa desenvolver efeitos adversos em virtude da exposição a contaminantes químicos e microbiológicos do ar interior é mais elevado tanto pelo facto do seu sistema imunitário ser mais débil, como por este grupo etário permanecer ...
Aguiar, Fátima   +11 more
core  

Poluição química relacionada ao ar de interiores no Brasil [PDF]

open access: yesQuímica Nova, 2003
During the last two decades there has been increasing concern within the scientific community related to the effects of indoor air quality on health. Changes in building design devised to improve energy efficiency and new synthetic building materials have contributed to increase pollutant concentrations.
Gioda, Adriana   +1 more
openaire   +4 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

Students’ Perceptions of Generative AI Image Tools in Design Education: Insights from Architectural Education

open access: yesEducation Sciences
The rapid emergence of generative artificial intelligence (GenAI) has sparked growing interest across educational disciplines, reshaping how knowledge is produced, represented, and assessed.
Michelle Boyoung Huh   +2 more
doaj   +1 more source

Interstellar and Ejecta Dust in the Cas A Supernova Remnant [PDF]

open access: yes, 2014
Infrared continuum observations provide a means of investigating the physical composition of the dust in the ejecta and swept up medium of the Cas A supernova remnant.
Arendt, Richard G.   +4 more
core   +3 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Efeito do teor inicial de água de sementes de feijão e da câmara no teste de envelhecimento acelerado

open access: yesScientia Agricola, 2001
A temperatura interna das câmaras e o teor de água das sementes podem influenciar os resultados obtidos no teste de envelhecimento acelerado (EA) e, consequentemente, sua interpretação.
Scappa Neto Angelo   +3 more
doaj  

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