Results 141 to 150 of about 83,260 (295)
On the reproduction and development of the telescope-fish of China [PDF]
M. Carbonnier
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Endoscopic Management of a Hypopharyngeal‐Subglottic Fistula: Case Series and Literature Review
A rare complication of prolonged intubation or laryngeal radiation is destruction of the posterior cricoid cartilage with resultant hypopharyngeal‐subglottic fistula leading to aspiration and inability to consume a regular diet. We describe a step‐by‐step endoscopic approach to the closure of a hypopharyngeal‐subglottic fistula.
Lexie Kessler+5 more
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A new radio telescope of high resolving power [PDF]
S. Ė. Khaĭkin, N. L. Kaĭdanovskiĭ
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Simultaneous temporal soliton self‐compression with simultaneous formation of a radial Townes profile is reported for millijoule pulses at 4.9 µm wavelength in ZnS. Pulses as short as 37 fs are generated in a 1‐kHz pulse train. The compression regime appears below the onset of filamentation, yielding two‐cycle pulses with 2.0 mJ energy which translates
Martin Bock+3 more
wiley +1 more source
A new photographic duplex telescope of the Astronomical institute of Charles University [PDF]
Hubert Slouka
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In conventional theories, electron‐phonon relaxation time τe‐p ${\tau }_{e\mbox{-}p}$—the average interval between two consecutive electron‐phonon collisions—is assumed to be independent of electron density. In this study, we establish a new relationship of τe−p=C∗·T−1·n−1/3 ${\tau }_{e-p}={C}^{\ast }\mathit{\cdot }{T}^{-1}\mathit{\cdot }{n}^{-1/3 ...
Ziru Wang+6 more
wiley +1 more source
Notes on the Manufacture of Tubes for Refracting Telescopes [PDF]
Frederick J. Brodie
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ABSTRACT Situational awareness (SA) refers to “knowing what is going on” in a situation. As an essential concept originating in aviation literature approximately 40 years ago, SA has demonstrated significant potential and has since been extended across various fields, leading to a growing body of research.
Rong Fang+7 more
wiley +1 more source