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

Group Polarization01:01

Group Polarization

38.3K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
38.3K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

702
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
702
Curvilinear Motion: Polar Coordinates01:27

Curvilinear Motion: Polar Coordinates

792
In polar coordinates, the motion of a particle follows a curvilinear path. The radial coordinate symbolized as 'r,' extends outward from a fixed origin to the particle, while the angular coordinate, 'θ,' measured in radians, represents the counterclockwise angle between a fixed reference line and the radial line connecting the origin to the particle.
The particle's location is described using a unit vector along the radial direction. Deriving the particle's position...
792
Phase Changes01:19

Phase Changes

5.2K
Phase transitions play an important theoretical and practical role in the study of heat flow. In melting or fusion, a solid turns into a liquid; the opposite process is freezing. In evaporation, a liquid turns into a gas; the opposite process is condensation.
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...
5.2K
Phase Transitions02:31

Phase Transitions

22.3K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
22.3K
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

1.6K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.6K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

GNL3L-LMNB1 signaling axis promotes lung squamous cell carcinoma growth and ferroptosis resistance via NF-κB activation.

Journal of thoracic disease·2026
Same author

Digital infrastructure and proxies of ambulatory care access in Russia, 2018-2024: a regional panel study with a national telemedicine signal analysis.

Frontiers in digital health·2026
Same author

Creation and Verification of a Machine Learning-Based Model for Predicting Breast Cancer Risk in Patients with BI-RADS 4 Breast Lesions.

Current medical imaging·2026
Same author

Broadband absorbing active metasurface for continuously and dynamically manipulate the absorptivity of electromagnetic waves.

Optics express·2026
Same author

Clinical application of synovial fluid albumin-to-globulin ratio as a novel biomarker in diagnosing chronic periprosthetic joint infection.

Frontiers in cellular and infection microbiology·2026
Same author

Stability of nanosuspensions in drug delivery: mechanisms, characterization strategies, and advanced stabilization approaches.

International journal of pharmaceutics·2026

Video Experimental Relacionado

Updated: Jan 8, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

6.6K

Metasuperficie de codificación programable con programación conjunta de amplitud y fase para la manipulación dinámica

Dongshu Wang, Tonghao Liu, Haiqing Chen

    Optics express
    |December 19, 2025
    PubMed
    Resumen

    Una novedosa metasuperficie de codificación programable (PCM) ofrece control independiente y dinámico sobre la amplitud y la fase para múltiples ondas polarizadas. Este avance permite la manipulación simultánea de la absorción y la dispersión para aplicaciones avanzadas de control de ondas.

    Palabras clave:
    metasuperficie programablemanipulación de ondaspolarizacióncontrol de amplitudcontrol de fase

    Más Videos Relacionados

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    10.3K
    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
    08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

    Published on: September 25, 2020

    6.2K

    Videos de Experimentos Relacionados

    Last Updated: Jan 8, 2026

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
    09:33

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

    Published on: June 7, 2019

    6.6K
    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

    Published on: January 28, 2019

    10.3K
    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
    08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

    Published on: September 25, 2020

    6.2K

    Área de la Ciencia:

    • Electromagnetismo y Metamateriales
    • Física Aplicada
    • Nanoingeniería

    Sus antecedentes:

    • Las metasuperficies ofrecen un control avanzado sobre las ondas electromagnéticas.
    • Los diseños existentes a menudo carecen de control independiente de amplitud y fase en múltiples estados de polarización.

    Objetivo del estudio:

    • Proponer un nuevo diseño de metasuperficie de codificación programable (PCM).
    • Lograr el control independiente y dinámico de la amplitud y la fase tanto para ondas de polarización lineal (LP) como circular (CP).

    Principales métodos:

    • Diseño de un meta-átomo que utiliza diodos PIN integrados para la modulación.
    • Implementación de secuencias de codificación de amplitud y fase para el control dinámico.
    • Utilización de simulación y validación experimental para la prueba de concepto.

    Principales resultados:

    • Se demostró la modulación dinámica continua de amplitud y fase de 1 bit para ondas LP y CP.
    • Se logró un control independiente y simultáneo de la intensidad de absorción y la dirección de dispersión.
    • Los resultados de simulación y experimentales confirmaron las predicciones teóricas.

    Conclusiones:

    • El diseño propuesto de PCM permite un control dinámico sin precedentes sobre las propiedades de las ondas.
    • Esta tecnología tiene aplicaciones potenciales en la manipulación avanzada de ondas y sistemas de comunicación.
    • La efectividad de la metodología se validó a través de una muestra de prueba de concepto.