Results 31 to 40 of about 5,146 (174)

Análise térmica de um forno de resistência ao fogo [PDF]

open access: yes, 2009
A classificação de produtos de construção em relação ao comportamento ao fogo é determinada pelas normas vigentes, utilizando um forno com curvas de incêndio normalizadas, como são exemplo as curvas de padrão 150 834, ASTM E119, hidrocarbonetos, etc ...
Mesquita, L.M.R.   +2 more
core  

Manipulation of Cancer Cell Spheroids by Photovoltaic Tweezers: Determination of Their Charge State

open access: yesAdvanced Photonics Research, Volume 6, Issue 4, April 2025.
Droplets containing spheroids of two cancer cell lines, MCF‐7 and U‐87‐MG, have been successfully manipulated by light‐induced electrical fields generated by photovoltaic tweezers. From the droplet dynamics, the charge state of the cell culture medium and the spheroids are obtained resulting in positively and negatively charged, respectively. Moreover,
Esther Rincón   +6 more
wiley   +1 more source

River Mouth Hydrodynamics: The Role of the Outlet Geometry and Transient Tidal and River Discharge Conditions on the Jet Structure

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 1, January 2025.
Abstract The hydrodynamics of river mouths are the result of a complex interaction between river flow, tidal conditions, and outlet geometry. This complex interaction of factors shapes the jet that flows onto the continental shelf and influences the dynamics of these areas.
Antonio Ruiz‐Reina   +2 more
wiley   +1 more source

William John Macquorn Rankine. Thermodynamics, heat conversion, and fluid mechanics

open access: yesEducación Química, 2018
William John Macquorn Rankine (1820-1870) fue un científico, educador e ingeniero muy prolífico y multifuncional, un pionero en el esfuerzo de llevar los recursos de las matemáticas y la física a los problemas prácticos de la ciencia y la ingeniería. Sus
Jaime Wisniak
doaj   +1 more source

The analysis of diffusion controlled reactions with non-equal diffusivities of the reactatnts [PDF]

open access: yes, 1996
We show, using as a model problem the description of the reaction of a fuel pocket with the oxygen of the environment, how to derive a system of conservation equations to describe the evolution of the temperature and concentrations of the reactants, when
Liñán Martínez, Amable
core   +1 more source

CFD Modeling of a Pitching Airfoil for the Estimation of the Performance Curve in an H‐Rotor Vertical Axis Wind Turbine

open access: yesInternational Journal of Energy Research, Volume 2024, Issue 1, 2024.
In this work, the performance curve of a straight‐bladed vertical axis wind turbine (VAWT) is estimated through a CFD two‐dimensional modeling of a single airfoil under unsteady pitching motion. A typical URANS approach, with a k‐ω SST turbulence model and UDF functionalities, has been employed to simulate a fixed airfoil under variable inlet ...
Luis Santamaría   +5 more
wiley   +1 more source

¿La Variación de la presión del pulso predice la respuesta a fluidos en pacientes críticos? Una revisión sistemática y metaanálisis

open access: yesRevista Electrónica de AnestesiaR, 2015
La reanimación con fluidos es considerada la primera línea de terapia en pacientes hemodinámicamente inestables. Sin embargo, hay cada vez más evidencia de que un balance hídrico positivo innecesario se asocia con aumento de la morbi-mortalidad ...
Alberto Hernández Martínez   +1 more
doaj   +1 more source

La versión p del método de los elementos finitos en mecánica lineal de fracturas [PDF]

open access: yes, 1990
En este trabajo se presenta un programa de computación basado en la versión p del método de los elementos finitos. Se discuten las características propias de esta versión y su implementación en programas convencionales de elementos finitos. Su aplicación
Oliveira, Roberto
core   +2 more sources

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