Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Accelerators01:17

Accelerators

286
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
286
Accelerating Fluids01:17

Accelerating Fluids

2.3K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
2.3K
Instantaneous Acceleration01:16

Instantaneous Acceleration

23.1K
Acceleration is in the direction of the change in velocity, but it is not always in the direction of motion. When an object slows down, its acceleration is opposite to the direction of its motion. Although commonly referred to as deceleration, this causes confusion in our analysis as deceleration is not a vector, and does not point to a specific direction with respect to a coordinate system. Therefore, the term deceleration is not used. For example, when a subway train slows down, it...
23.1K
Acceleration Vectors01:30

Acceleration Vectors

22.5K
In everyday conversation, accelerating means speeding up. Acceleration is a vector in the same direction as the change in velocity, Δv, therefore the greater the acceleration, the greater the change in velocity over a given time. Since velocity is a vector, it can change in magnitude, direction, or both. Thus acceleration is a change in speed or direction, or both. For example, if a runner traveling at 10 km/h due east slows to a stop, reverses direction, and continues their run at 10 km/h...
22.5K
Average Acceleration01:30

Average Acceleration

13.3K
The importance of understanding acceleration spans our day-to-day experiences, as well as the vast reaches of outer space and the tiny world of subatomic physics. In everyday conversation, to accelerate means to speed up. For instance, we are familiar with the acceleration of our car; the harder we apply our foot to the gas pedal, the faster we accelerate. The greater the acceleration, the greater the change in velocity over a given time. Acceleration is widely seen in experimental physics. In...
13.3K
Measuring Acceleration Due to Gravity01:12

Measuring Acceleration Due to Gravity

1.3K
Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
1.3K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Combination of Phosphorus Doping and Gas Treatment to Enhance the Capacity and Initial Coulombic Efficiencies of Hard Carbon Anode for Sodium Ion Batteries.

ChemSusChem·2026
Same author

Layered Porous Nanocubes: Harnessing Trimetallic PBA@WS<sub>2</sub>-Phosphorus Hybrid Architecture for Efficient Oxygen Evolution.

ACS applied materials & interfaces·2026
Same author

Computational and Experimental Realization of Metal-Ion-Doped Orthorhombic Sn<sub>3</sub>O<sub>4</sub> for Visible-Light-Active Photocatalysis.

Journal of the American Chemical Society·2026
Same author

Sintering and Processing-Dependent Mechanical Behavior of UHMWPE and Its Nanocomposites in the Presence of Microfine UHMWPE.

ACS omega·2026
Same author

Automated Feature Engineering and Model Aggregation for Data-Driven Oxidative Coupling of Methane Catalyst Design.

ACS applied materials & interfaces·2025
Same author

High-capacity, reversible hydrogen storage using H<sup>-</sup>-conducting solid electrolytes.

Science (New York, N.Y.)·2025

Video Experimental Relacionado

Updated: Jan 28, 2026

Determination of Microbial Extracellular Enzyme Activity in Waters, Soils, and Sediments using High Throughput Microplate Assays
15:23

Determination of Microbial Extracellular Enzyme Activity in Waters, Soils, and Sediments using High Throughput Microplate Assays

Published on: October 1, 2013

40.4K

Un Ensayo Simple en Microplaca para la Evaluación Acelerada de la Actividad Fotocatalítica

Yohei Cho1,2, Osamu Tagami1, Kyo Yanagiyama1

  • 1Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.

ACS environmental Au
|January 26, 2026
PubMed
Resumen

Este estudio presenta un ensayo de fotocatalizador de alto rendimiento que utiliza una microplaca de 96 pocillos, lo que reduce significativamente el trabajo y el tiempo. El nuevo método permite el cribado rápido de materiales para aplicaciones de energía solar.

Palabras clave:
cribado de alto rendimientoanálisis cinéticoensayo en microplacafotocatálisistratamiento de agua

Más Videos Relacionados

A High Throughput Microplate Feeder Assay for Quantification of Consumption in Drosophila
08:55

A High Throughput Microplate Feeder Assay for Quantification of Consumption in Drosophila

Published on: June 14, 2021

3.8K
A Simple Technique to Assay Locomotor Activity in Drosophila
07:47

A Simple Technique to Assay Locomotor Activity in Drosophila

Published on: February 24, 2023

4.2K

Videos de Experimentos Relacionados

Last Updated: Jan 28, 2026

Determination of Microbial Extracellular Enzyme Activity in Waters, Soils, and Sediments using High Throughput Microplate Assays
15:23

Determination of Microbial Extracellular Enzyme Activity in Waters, Soils, and Sediments using High Throughput Microplate Assays

Published on: October 1, 2013

40.4K
A High Throughput Microplate Feeder Assay for Quantification of Consumption in Drosophila
08:55

A High Throughput Microplate Feeder Assay for Quantification of Consumption in Drosophila

Published on: June 14, 2021

3.8K
A Simple Technique to Assay Locomotor Activity in Drosophila
07:47

A Simple Technique to Assay Locomotor Activity in Drosophila

Published on: February 24, 2023

4.2K

Área de la Ciencia:

  • Ciencia de Materiales
  • Ingeniería Química
  • Fotocatálisis

Sus antecedentes:

  • La investigación en fotocatálisis es crucial para aprovechar la energía solar, pero se ve obstaculizada por la lenta evaluación de materiales.
  • Los métodos actuales para evaluar el rendimiento de los fotocatalizadores consumen mucha mano de obra y tiempo.
  • Existe la necesidad de métodos de cribado de alto rendimiento para acelerar el descubrimiento de nuevos fotocatalizadores.

Objetivo del estudio:

  • Desarrollar un ensayo simple, que ahorre mano de obra y de alto rendimiento para evaluar la actividad fotocatalítica.
  • Optimizar el flujo de trabajo para el cribado de fotocatalizadores, desde el pesaje hasta el análisis de datos.
  • Eliminar el cuello de botella de la separación de polvos de fotocatalizador de las soluciones durante las mediciones.

Principales métodos:

  • Se utilizó un formato de microplaca de 96 pocillos para el procesamiento simultáneo de muestras.
  • Se desarrolló un protocolo que integra el pesaje, la preparación de microplacas, la irradiación de luz y la medición espectroscópica.
  • Se investigó el impacto de la coexistencia de tinte y polvo en la absorbancia y los perfiles temporales.

Principales resultados:

  • Se logró una mejora significativa en el rendimiento y una reducción de la mano de obra al eliminar los pasos de separación de polvo-solución.
  • Se establecieron pautas para optimizar las concentraciones de fotocatalizador y tinte para mediciones precisas y alto rendimiento.
  • Se demostró la versatilidad del ensayo, aplicable a varios tintes debido a su dependencia de los principios de absorción y dispersión.

Conclusiones:

  • El ensayo desarrollado permite la evaluación del rendimiento de fotocatalizadores de alto rendimiento (aproximadamente 500 muestras/día).
  • Este método facilita la exploración de un vasto espacio de materiales, acelerando el descubrimiento de nuevos fotocatalizadores.
  • El protocolo ofrece una base para el cribado eficiente de materiales para aplicaciones de energía solar.