Videos de Conceptos Relacionados
01:20Mechanisms of Heat Transfer II
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
01:14Mechanisms of Heat Transfer I
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
01:14Mechanisms of Heat Transfer
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
01:19Mechanism of heat transfer
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
También podría leer
Artículos Relacionados
Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.
Ordenar por
Same author
Advanced wound healing in a patient with transmetatarsal amputation caused by severe diabetic foot infection: A case report.
International journal of surgery case reports·2024
Video Experimental Relacionado
Updated: Jul 11, 2026
09:32
Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
Resumen
Los científicos han depositado con éxito películas delgadas superconductoras sobre el silicio, un paso crucial para integrar la superconductividad en la microelectrónica y avanzar en los dispositivos superconductores.
Área de la Ciencia:
- Ciencia de los materiales Ciencia de los materiales.
- Física de la materia condensada Física de la materia condensada
- Microelectrónica Ingeniería de la ingeniería.
Sus antecedentes:
- Las películas delgadas superconductoras son vitales para las aplicaciones prácticas de superconductividad en microelectrónica.
- El silicio es el elemento fundamental para la mayoría de los circuitos integrados modernos.
Objetivo del estudio:
- Para demostrar la deposición exitosa de películas delgadas superconductoras en un sustrato de silicio.
- Para permitir la integración de la superconductividad en dispositivos microelectrónicos basados en silicio.
Principales métodos:
- Deposición de películas delgadas superconductoras.
- Caracterización de las propiedades de la película sobre el silicio.
Principales resultados:
- Fabricación exitosa de películas delgadas superconductoras en silicio.
- Demostración de superconductividad en películas integradas con silicio.
Conclusiones:
- La integración de películas delgadas superconductoras en el silicio es posible.
- Este avance allana el camino para nuevas aplicaciones microelectrónicas superconductoras.