Results 171 to 180 of about 6,703 (220)
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The Biogenesis of Multipass Membrane Proteins
Cold Spring Harbor Perspectives in Biology, 2022Multipass membrane proteins contain two or more α-helical transmembrane domains (TMDs) that span the lipid bilayer. They are inserted cotranslationally into the prokaryotic plasma membrane or eukaryotic endoplasmic reticulum membrane. The Sec61 complex (SecY complex in prokaryotes) provides a ribosome docking site, houses a channel across the membrane,
Luka Smalinskaitė, Ramanujan S. Hegde
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Journal of Rheology, 1995
This article describes the technical performance and initial results for a new, two-piston, ‘‘multipass rheometer.’’ Fluid is contained within a capillary by two servo-hydraulically controlled pistons. Both steady flow and oscillatory data can be obtained from the device with mean pressure as an independent adjustable variable.
M. R. Mackley +2 more
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This article describes the technical performance and initial results for a new, two-piston, ‘‘multipass rheometer.’’ Fluid is contained within a capillary by two servo-hydraulically controlled pistons. Both steady flow and oscillatory data can be obtained from the device with mean pressure as an independent adjustable variable.
M. R. Mackley +2 more
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Aberrations of a multipass matrix system
Applied Optics, 1992A three-objective multipass matrix system has been theoretically analyzed with respect to the aberrations of the third order. An expression has been derived in the three-dimensional coordinate system relating the position of a point in the output slit to that of a point in the input slit, depending on the construction peculiarities of the system given ...
S M, Chernin +2 more
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Acta Informatica, 1974
This paper considers parsing of strictly non context free languages. The notion of a controlled grammar is used to define by an inductive process successively larger families of languages starting with the context free family. If \(L_0\) represents the context free family, then the construction yields an infinite chain \(L_0\subset L_1\subset L_2 ...
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This paper considers parsing of strictly non context free languages. The notion of a controlled grammar is used to define by an inductive process successively larger families of languages starting with the context free family. If \(L_0\) represents the context free family, then the construction yields an infinite chain \(L_0\subset L_1\subset L_2 ...
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Optical multipass matrix systems
Applied Optics, 1991Large relative aperture three- and four-objective multipass matrix systems ensuring the longest optical path length in an absorbing medium have been developed for high resolution laser spectroscopy. In these systems the images are formed on the field mirrors as compact rectangular matrices with a controlled amount of lines and columns.
S M, Chernin, E G, Barskaya
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Characteristics of multipass amplifiers
Soviet Journal of Quantum Electronics, 1990A description is given of a new method for design calculations of multipass systems. This method is based on some properties of the Frantz–Nodvik equation. The condition for optimal, from the point of view of the efficiency, operation of an amplifier is found.
I V Epatko, Pavel P Pashinin, R V Serov
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Stability problems in the control of multipass processes [PDF]
Proceedings of the Institution of Electrical Engineers, 1974 The general characteristics of multipass processes are discussed and a method of process modelling is proposed based on the single independent variable:total distance passed.
J B Edwards
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Topical Meeting on Ultrafast Phenomena, 1984
We describe an amplifier designed specifically for amplification of femtosecond optical pulses 1,2 at high repetition rate. A key problem in high repetition rate amplification is that the energy of the available pump pulses is only a few microjoules as compared to the hundreds of millijoules available for low repetition rate amplifiers2.
R. L. Fork, M. C. Downer, M. Islam
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We describe an amplifier designed specifically for amplification of femtosecond optical pulses 1,2 at high repetition rate. A key problem in high repetition rate amplification is that the energy of the available pump pulses is only a few microjoules as compared to the hundreds of millijoules available for low repetition rate amplifiers2.
R. L. Fork, M. C. Downer, M. Islam
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Multipass optical parametric amplifier
Optics Letters, 1996A compact, low-threshold, multipass optical parametric amplifier has been developed for the conversion of short-pulse (360-ps) 1064-nm Nd:YAG laser radiation into eye-safe 1572-nm radiation for laser ranging and radar applications. The amplifier had a threshold pump power of as low as 45 microJ, and at three to four times this threshold pump power the ...
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Multipass amplifiers of POLARIS
SPIE Proceedings, 2013Advanced high intensity laser matter interaction experiments always call for optimized laser performance. In order to further enhance the POLARIS laser system, operational at the University of Jena and the Helmholtz-Institute Jena, in particular its energy, bandwidth and focusability, new amplifier technologies have been developed and are reported here.
S. Keppler +9 more
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