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

Temperature and Thermal Equilibrium01:11

Temperature and Thermal Equilibrium

9.6K
Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
9.6K
Scanning Electron Microscopy01:07

Scanning Electron Microscopy

5.6K
A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
5.6K
Interference and Diffraction02:18

Interference and Diffraction

52.6K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
52.6K
Gyroscope: Precession01:24

Gyroscope: Precession

5.6K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
5.6K
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

3.1K
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
3.1K
Vibrating Concrete01:19

Vibrating Concrete

413
Mechanical vibrators are instrumental in compacting newly poured concrete within formwork and around reinforcements. This process is essential to eliminate trapped air pockets and establish a dense concrete mass. One widely used method is vibrating by internal vibrators, often referred to as a poker vibrator or immersion vibrator. It is rapidly inserted through the full depth of the freshly laid concrete and slightly extends into the layer below it (which remains in a plastic state). Consistent...
413

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Visual theranostic oral nanozymes for IBD from principles to preclinical design.

Bioactive materials·2026
Same author

Large thermoelectric effect driven by high-order anharmonicity from synergistic lone-pair electrons and rattling modes in K<sub>3</sub>Au<sub>3</sub>Sb<sub>2</sub>.

Physical chemistry chemical physics : PCCP·2026
Same author

TME/NIR Dual-Responsive Zinc-Based Targeted Nanoagonist for Multimodal Amplification of STING-Mediated Cancer Immunotherapy.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Accelerated Oxide Materials Discovery Through High-Throughput Synthesis and Characterization.

Small methods·2026
Same author

Discovery Process of Enlicitide, a Highly Engineered Macrocyclic Peptide Therapeutic, through Issue-Driven Fragment-Based Synthetic Assembly and SAR.

Journal of medicinal chemistry·2026
Same author

Virtual reality in physiological education: Influence of learning modality and learner characteristics on learning outcomes.

Acta psychologica·2026
Same journal

Taphonomic analysis at Liang Bua reveals the behavioral and technological capabilities of <i>Homo floresiensis</i>.

Science advances·2026
Same journal

Targeting granule initiation and amyloplast structure to create giant starch granules in wheat.

Science advances·2026
Same journal

A meta-analysis of carbon losses and gains from tropical moist forest degradation and regeneration.

Science advances·2026
Same journal

Ancient DNA reveals elite dynastic rule among Iron Age Eurasian Steppe nomads.

Science advances·2026
Same journal

Targeting astrocytic Dp71 attenuates BBB disruption after traumatic brain injury through WTAP-associated m<sup>6</sup>A regulation of MMP2.

Science advances·2026
Same journal

Pancreatic α cells are required for nutrient homeostasis by regulating dynamic β cell networks in islets.

Science advances·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Feb 15, 2026

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy
11:03

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy

Published on: July 14, 2022

4.1K

Mapeo de temperatura a nanoescala mediante caracterización de vibraciones térmicas usando difracción de electrones

Kun Yang1, Chao Zhang1, Chengwei Wu2

  • 1State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Future Material Innovation Center, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China.

Science advances
|February 13, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores desarrollaron una nueva técnica de termometría a nanoescala utilizando microscopía electrónica de transmisión. Este método logra una resolución espacial nanométrica para una medición precisa de la temperatura en materiales avanzados.

Más Videos Relacionados

Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
11:14

Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope

Published on: May 28, 2016

14.4K
A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens
07:15

A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens

Published on: June 2, 2017

9.7K

Videos de Experimentos Relacionados

Last Updated: Feb 15, 2026

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy
11:03

Nanoscale Characterization of Liquid-Solid Interfaces by Coupling Cryo-Focused Ion Beam Milling with Scanning Electron Microscopy and Spectroscopy

Published on: July 14, 2022

4.1K
Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
11:14

Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope

Published on: May 28, 2016

14.4K
A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens
07:15

A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens

Published on: June 2, 2017

9.7K

Área de la Ciencia:

  • Ciencia de Materiales
  • Física
  • Nanotecnología

Sus antecedentes:

  • La medición precisa de la temperatura a nanoescala es fundamental para comprender el comportamiento térmico en dispositivos integrados e interfaces heterogéneas.
  • Las técnicas actuales a menudo carecen de la resolución espacial requerida para aplicaciones a nanoescala.

Objetivo del estudio:

  • Demostrar un método de medición de temperatura directo y sin contacto con resolución espacial nanométrica.
  • Establecer una estrategia ampliamente aplicable para la termometría a nanoescala.

Principales métodos:

  • Se utilizó microscopía electrónica de transmisión (TEM) combinada con un haz nanométrico escaneado y difracción de electrones por precesión.
  • Se recopiló intensidad de difracción cinemática de áreas a nanoescala.
  • Se aplicaron correcciones basadas en el factor de estructura y ajuste lineal de las intensidades de difracción para determinar el factor de Debye-Waller.

Principales resultados:

  • Se logró una medición de temperatura con una precisión de 10-4 angstroms cuadrados por °C.
  • Se demostró la aplicabilidad del método utilizando grafeno como material modelo.
  • Se investigó la influencia de la inclinación de la muestra, la expansión térmica y el espesor en el factor de Debye-Waller.

Conclusiones:

  • El enfoque desarrollado basado en TEM permite la termometría directa y sin contacto a nanoescala.
  • La técnica ofrece alta resolución espacial y precisión, adecuada para materiales de baja dimensionalidad y heterogéneos.
  • Este trabajo proporciona una ruta para mejorar la precisión de la medición y la resolución espacial en la termometría a nanoescala.