Términos

El uso o investigación con un microscopio electrónico.

La actividad de usar un microscopio electrónico de barrido, que está diseñado para estudiar directamente las superficies de objetos sólidos, utilizando un haz de electrones que se centran en energía relativamente bajo.

Instrumento óptico que consiste en una lente o combinación de lentes que permite la visualización de objetos demasiado pequeños para ser vistos sin ayuda. El término también se usa para varios tipos de instrumentos que usan corriente de electrones (microscopio electrónico), radiación electromagnética (de rayos X) u otro medio distinto de la luz.

Microscopio con una lente para cada ojo y dispuestos de modo que la muestra se observe desde ángulos ligeramente diferentes, dando una imagen tridimensional. Son muy utilizados en cirugía.

Microscopio en el que un haz de electrones se enfoca mediante lentes magnéticos y electrostáticos sobre la muestra y se dispersan por ella para producir una imagen. El poder de resolución y aumento de este microscopio es mucho mayor que el pueden obtenerse con otros ópticos. La muestra debe examinarse al vacío, lo que requiere de técnicas especiales para su preparación, y los electrones se enfocan por lo general en una pantalla fluorescente (para visualización directa) o en una placa fotográfica.

Microscopios que utilizan luz polarizada que vibra en un solo plano, de modo que la luz pueda ser transmitida a través de la muestra. Se utiliza para examinar secciones delgadas de rocas y minerales.

Cualquier sonda miniaturizada de dimensiones físicas en el rango del submicrómetro al milímetro. Los microsensores se manufacturan usando tecnología de sistemas microelectromecánicos (identificados con la sigla MEMS en inglés).

Fluorimetry practiced on a micrometer scale. In conservation science used for the characterization of lake pigments and dyes in works of art.

Process of comparing photometrically the relative intensities of light absorbed, reflected, or emitted by a microscopic specimen in different parts of a spectrum.

Vocabulario controlado en forma de tesauro limitado a un rango de temas, pero que cabe dentro del dominio de un vocabulario controlado mayor o más genérico. Un microtesauro generalmente contiene términos altamente especializados que se asignan a la estructura jerárquica de un vocabulario más amplio en un nodo de alto nivel.

Máquinas usadas para cortar secciones pequeñas (3 a 5 micrometros de ancho) de tejidos de plantas o animales para exámen microscópico.

Study of topographic irregularities on a very small or microscopic scale.

Drying materials such as paper books and documents with a microwave oven.

High-frequency electromagnetic waves with wavelengths between one meter and 30 centimeters. Microwaves have many applications including communications, heating, radar, astronomy, and navigation. In conservation, microwave radiation has been used for dehydrating water-logged materials and for pest control.

Harvest festival celebrated by ethnic Chinese and Vietnamese peoples on the 15th day of the eighth lunar month, near the autumnal equinox. The festival has roots in ancient Chinese religious rituals celebrating the harvest. It may also have ties to ancient moon-worshipping rituals. Observances included worshipping Tudi Gong (the earth god) or Tai Yin Jun (the moon god) and references to other myths and legends incorporating the moon. It is customary to have a family reunion during the full moon, to eat moon cakes, and to appreciate the beauty of the full moon.

Infrared spectroscopy having the range of 400-4,000 inverse centimeters [cm-1].

The English language in the period between Anglo/Saxon and Modern English, usually considered ca. 1100/1150-1450/1500. Middle English is characterized by a reduced system of grammatical inflections, an increased lexical borrowing from other languages, especially French and Latin, and great dialectal diversity in writing.

The variety of German language that developed after ca. 1100 CE, based on the upper German dialects Alemannic and Bavarian that had begun to arise in the southernmost part of Germany. Middle High German was the language of an extensive literature that includes the early 13th-century epic "Nibelungenlied."

In the context of personal names, particularly in western culture, names that are positioned between a first name and a last name, possibly comprising an additional familiar name or a maternal family name. In other traditions, such as Islamic tradition, the middle name may be the primary personal name (analogous to the first name in western tradition) or another sort of name.

Educational institutions for the second stage of a three-tier educational system, falling intermediate between an elementary school and an upper, senior, or high school. The age ranges and grades or forms included in middle schools differ according to the system, but an example would be for children ages 13 to 16, covering grades 6 through 9.