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Winged words, phraseological units. Meaning, history of origin, examples of use
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good wishes
Latin
Phraseologism: Good wishes.
Meaning: The intentions are good, but practically impossible or not supported by real actions (iron.).
Origin: Translation from Latin: Pia desideria. Literally: Pious wishes. The primary source is a book published (1627) in Antwerp under this title by the Belgian Jesuit Hermann Hugo. Sometimes this expression is used in the singular - Pium desiderium.
Random phraseology:
A figure without a face.
Meaning:
About an uninteresting, gray person, devoid of any personality traits, or about a person who does not have his own opinion on any issue (jokingly ironic).
Origin:
From the story "Lieutenant Kizhe" (1928) by Yuri Nikolayevich Tynyanov (1894-1943), where her main character is called that. |
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| Random news from the Archive LED textile
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Classical light emitting elements are arranged in such a way that the light emitting layer is enclosed between two electrodes that supply power. For light sources in the form of filaments and fabrics made from such filaments, such a structure is not the best fit. Scientists from the Republic of Korea were able to get around this limitation and created a luminous textile with electrodes inside the luminescent layer.
It would be tempting to produce garments, advertising posters and other items made from materials like fabrics using woven light structures. The traditional representation of light-emitting elements clearly does not contribute to this.
A group of scientists from the Korean Institute of Science and Technology Daegu Gyeongbuk (DGIST) set themselves the task of developing a flexible luminescent device in which the electromagnetic field that excites the glow would not propagate perpendicular to the electrodes, but along the plane in which they are located. Also, this design made it possible to hide the power supply electrodes inside the luminescent layer and not block the surface of the light-emitting device.
The flexible luminescent textile developed by the group is a film of polydimethylsiloxane (PDMS) and zinc sulfide (ZnS) with flexible conductive electrodes embedded in the layer. Such a film, firstly, has mechanoluminescence (it glows from mechanical influences) and, secondly, electroluminescence (it glows when power is applied to the electrodes, between which an electromagnetic field arises).
Prototypes of luminous fibers and fabrics made from them showed high luminescence efficiency and sufficient mechanical strength. But when this technology can be sent to commercial production is not specified.
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