Con frecuencia, a la tecnología le lleva muchos años abrirse paso del laboratorio a los hogares de la gente común. Sin embargo, en el caso de la tecnología Quantum Dot con la que cuentan los televisores Samsung QLED, sólo transcurrieron cerca de 30 años para que esto sucediera. Parece mucho tiempo, pero es realmente poco si no conocemos los antecedentes históricos.
En realidad, la historia de los puntos cuánticos no es tan breve. Se remonta a muchos años atrás, hasta la creación de las ventanas de vitrales — en el siglo I d.C. Es así que los humanos hemos estado aprovechando el poder de las nanopartículas — elemento central de los puntos cuánticos que acciona las imágenes sorprendentes del televisor QLED — durante mucho, pero mucho tiempo. Retrocedamos y veamos uno de los ejemplos más antiguos: las majestuosas ventanas de vitrales que datan del siglo I d.C.
¿Cómo funcionan los vitrales?
Los vitrales han existido por más de 1000 años— ¡definitivamente mucho más que el televisor QLED! En especial, los vitrales se usaban como medio de expresión artística, que se encontraba comúnmente en las iglesias europeas, durante la Edad Media. Los artistas medievales que incursionaban en la alquimia mezclaban el cloruro de oro y plata con vidrio fundido, para crear tintes rojos y amarillos que brillaban espectacularmente con la luz del sol. Cuando la luz tocaba el vitral, las nanopartículas de cloruro actuaban como puntos cuánticos, reflejando una magnífica variedad de luces rojas y amarillas en esa zona del espectro de colores.
Entonces, ¿qué tiene que ver eso con el televisor QLED?
Bueno, las creaciones sensacionales de vitrales que se encuentran en las catedrales europeas, son uno de los primeros ejemplos de la aplicación de nanopartículas similares a los puntos cuánticos por artistas humanos. Los óxidos y cloruros metálicos que se encuentran en los vitrales reaccionan con la luz de una manera similar a la de los puntos cuánticos. 1 Dichas nanopartículas tomaron un papel fundamental en la creación del fascinante efecto de estas obras clásicas de arte. Y las mismas nanopartículas — aunque mejoradas — se encuentran en las pantallas de los televisores QLED, brindando las imágenes vívidas con las que la nueva línea de Samsung está siendo reconocida.
Cómo trabajan los puntos cuánticos y cuáles son sus efectos
Mucho después de que los artistas alquimistas medievales descubrieran el método de incorporar químicamente cloruros en el vidrio, los científicos modernos empezaron a descubrir un fenómeno relacionado, casi por accidente. Al fracturar materiales con propiedades semiconductoras en partículas nanométricas — sólo ligeramente mayores que las moléculas de agua — se descubrieron otras propiedades interesantes. El tamaño ajustado de las partículas afecta el color de la emisión de luz, como resultado del cambio en la energía de banda prohibida. De este modo, al controlar el tamaño de un punto cuántico con incrementos diminutos, el espectro de colores puede expresarse en forma más plena y pura.
¿No es sorprendente que el proceso para controlar las nanopartículas para que produzcan colores asombrosos se haya refinado tanto, que ahora podamos encontrar puntos cuánticos en un televisor moderno? Hoy podemos apreciar imágenes impresionantes gracias a los puntos cuánticos de los televisores QLED, tanto como en las increíbles luces de los paneles de vitrales en las catedrales más importantes del mundo.
El inventario gestionado por el proveedor VMI es una técnica de gestión de inventario en la que el proveedor/vendedor asume la responsabilidad total de optimizar y mantener el inventario mantenido por un minorista
EY FinTech 2017: El índice de adopción mundial de estas herramientas digitales es de 33%; el BID destaca que en México la creación de tecnologías emergentes creció 50% entre 2016 y 2017.
La tecnología, junto con una planificación estratégica de la fuerza laboral y la inversión en optimización de flujos de trabajo, ofrece la oportunidad de cerrar la brecha entre las grandes y pequeñas empresas en cuanto a las expectativas de cumplimiento de pedidos. La adaptación de las organizaciones a estos desafíos mediante el uso de soluciones tecnológicas será clave para lograr el pedido perfecto y asegurar la satisfacción del cliente a largo plazo.
and then send the Collector back to the ancestral domain, right There were two or three people with delicate minds whose expressions changed slightly when they heard this.He stretched out his hand and gestured twice casually, demonstrating.
A clear light flashed and fell in front of him, revealing the appearance of a middle aged man his skin was green and his body was unusually tall.It is simply unbelievable. Maybe he wants to do something big and is in too much mood.
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just a water polo appearance inexplicably, I feel again that the distance between me and Gui Wujiu has more than doubled It seemed to be a very clever method of space expansion and contraction, which unknowingly propped up an extremely vast space, causing the Seven Formations of the Demon Clan, Dongfang Wanqing and other real beings to be isolated in an extremely far distance.
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It turned out to be so. The movement and movement of this giant egg are unprecedented in ancient times, and it can be said that it is an unprecedented treasure.1 second remember network. Xi Lerong fell into battle.
At this time, I was wondering why Qingquyu made Gui Wujiu admit the fact.It s just that although this person s character has been completely transformed, after all, his previous foundation was too poor, and he hasn t broken through for a long time, so many of his methods are not proficient.
The dripping water image quickly grew in size and deformed flat, becoming a mirror like surface.In the place where the streams gather in front, there seem to be many visible and invisible fish fry swimming repeatedly in the water, raising stars.
Three breaths later, a man in yellow robe stumbled and jumped into the sky with disheveled hair.
If dianfeng had known that the situation was so complicated, he should not have gotten so close.If it annoys If he killed the people in front of him, Tianjiazhuang might be in danger of annihilation.
The passage was calm and there seemed to be no danger hidden in the depths.There are dangers inside, but when have we, the Ten Kings Palace, ever been afraid of danger Cultivation as an immortal is to fight with the sky.
The situation on the side of the Iron armed Monkey is even worse.If he had said this earlier, it would not have caused any support.
They stayed outside. Seeing something happen to the king, they were unable to do anything.div Zhenren Yuanzhu had followed Zhenjun Chiye for hundreds of years, and he still He had never seen his master like this before.
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The so called treasure was just his own guess. Who knew whether it was true or false Maybe this Qingyang is really talented and can improve his cultivation so quickly, or maybe he has the support of a big shot behind him.Now the space is large enough, and the two parties can not affect each other, and there is a group of monster monkeys in the space, which looks more lively.
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Just that one high grade spirit stone raised Qingyang s cultivation from the eighth level of Qi Refining to the ninth level of Qi Refining.They kept moving their hands and threw countless black chains, frantically strengthening the giant net on Futian Liu.
Especially when the other party is Archimonde, a supernova, there shouldn t be too much information.The Bomb Dragon is very fast. After all, its name has changed from Flying Insect to Flying Dragon.
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Even if they support, they will go to the Wolf Principality, so his example is very important.Among the demon army, the strongest ones are the great demon and the fire elves.
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Each death knight is a commander who can turn a large number of chaotic undead into obedient soldiers.Preparations for the attack are complete. Buzz, buzz The sheath wings vibrated.
Of course, a small part of them are biological troops.Fierce, violent An archangel waved a long sword burning with holy flames in his hand and chopped down the shadow swordsman in front of him to the ground.
Pass, pass, pass At this moment, among the remaining four orcs, the three at the back suddenly disappeared, and they must have been dragged into the swamp below the grassland.growing up After following him for a while, Eve seemed to be much more intelligent than before.
Whether there are workshops, salt fields, or wheat fields, there are many more during this period.Well, at this time, Zhao Hao couldn t control himself at all, but he also understood that resistance could break him out of this state.
At this time, this mage group composed of coral witches has achieved this perfectly.In this posture, not only will the recovery ability be greatly improved, but also there is no need to worry about being knocked down.
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The internal affairs of the territory are now under the control of the internal affairs team formed by Boludo and Hodge, and it is growing steadily and rapidly.It is by virtue of this ability that the Great Demon is as famous as the Archangel.
Please start choosing now The metal puppet butler saluted everyone and said.This time, the shock was different. Once is a fluke, twice is strength.
Wow Under the command of Eve, the Storm began to move towards the next target.
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Of course I m here to deal with the nine headed monster Zhao Hao began to release a war machine.Only now, the Wind King pterosaurs began to enter a fighting state.
The Paladin is just stubborn, but he is not stupid.No one expected that such a powerful Takagi City would be breached in just one day, so it is true that the elves cannot protect themselves.
Find a way to promote it to the Dragon Fly Queen, which is a tactical unit to deal with high level enemies, and the transaction price is not low.But later, Qin Hu drank the wine and fell asleep. When he woke up, he was already in the imperial prison of the inner guard.
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After solving this problem, even if the cleanup mission is completed, he naturally does not need to retain his strength.Just like Freya and Feida, they did not use dragon breath, flames, etc.
No way, although this long range unit only appeared a few times, it played a role in reversing the situation of the battle every time.Because of its huge size, it almost failed to fill up this giant shipyard.
Just follow the same method, the moon blade stabs along the reverse scale.The Mythical Territory was established early, and with the support of the entire alliance, the extent of its development can be imagined.
It looked like a bee. It was about 1. 5 meters tall in a crouching state. It had a pair of thin sheath wings behind it and its whole body was covered with dark fine scales.If it were someone else s hiring mission, Zhao Hao would choose to save trouble and not spend any effort chasing him.
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Con frecuencia, a la tecnología le lleva muchos años abrirse paso del laboratorio a los hogares de la gente común. Sin embargo, en el caso de la tecnología Quantum Dot con la que cuentan los televisores Samsung QLED, sólo transcurrieron cerca de 30 años para que esto sucediera. Parece mucho tiempo, pero es realmente poco si no conocemos los antecedentes históricos.
Los vitrales han existido por más de 1000 años— ¡definitivamente mucho más que el televisor QLED! En especial, los vitrales se usaban como medio de expresión artística, que se encontraba comúnmente en las iglesias europeas, durante la Edad Media. Los artistas medievales que incursionaban en la alquimia mezclaban el cloruro de oro y plata con vidrio fundido, para crear tintes rojos y amarillos que brillaban espectacularmente con la luz del sol. Cuando la luz tocaba el vitral, las nanopartículas de cloruro actuaban como puntos cuánticos, reflejando una magnífica variedad de luces rojas y amarillas en esa zona del espectro de colores.
Cómo trabajan los puntos cuánticos y cuáles son sus efectos
¿No es sorprendente que el proceso para controlar las nanopartículas para que produzcan colores asombrosos se haya refinado tanto, que ahora podamos encontrar puntos cuánticos en un televisor moderno? Hoy podemos apreciar imágenes impresionantes gracias a los puntos cuánticos de los televisores QLED, tanto como en las increíbles luces de los paneles de vitrales en las catedrales más importantes del mundo.