Results 11 to 20 of about 299,628 (304)
Coupling efficiency of secondary active transporters [PDF]
Current Opinion in Biotechnology, 2019 Secondary active transporters are fundamental to a myriad of biological processes. They use the electrochemical gradient of one solute to drive transport of another solute against its concentration gradient. Central to this mechanism is that the transport of one does not occur in the absence of the other. However, like in most of biology, imperfections
Ryan K Henderson +2 more
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Land, 2022 The coordination and coupling of new urbanization and the ecological environment is of great significance for the high-quality development of the Yellow River basin, China.
Yuhan Ren +5 more
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High efficiency coupling of photon pairs in practice
Optics Express, 2013 Multi-photon and quantum communication experiments such as loophole-free Bell tests and device independent quantum key distribution require entangled photon sources which display high coupling efficiency. In this paper we put forward a simple quantum theoretical model which allows the experimenter to design a source with high pair coupling efficiency ...
Barbosa Dos Santos Guerreiro, Thiago +5 more
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Improving coupling efficiency of fiber-waveguide coupling with a double-tip coupler
Optics Express, 2008 A double-tip coupler that comprises two inversely and laterally tapered waveguides is experimentally demonstrated for efficient light coupling between a fiber and a sub-micron silicon nitride waveguide. The coupling efficiency of the fabricated double-tip coupler can be improved by as much as over 2 dB per coupling facet, compared with that of a single-
S H, Tao +5 more
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High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber
Guangtongxin yanjiu, 2021 Due to the small mode field of silicon photonic chips, the large coupling loss is a road-blocker for their applications. In this work, the coupling efficiency between a silicon photonic modulator chip and a single-mode optical fiber is investigated.
Zhong-xiang TAN +5 more
doaj +1 more source
Fair and efficient student placement with couples [PDF]
International Journal of Game Theory, 2007 We study situations of allocating positions or jobs to students or workers based on priorities. An example is the assignment of medical students to hospital residencies on the basis of one or several entrance exams. For markets without couples, e.g., for ``undergraduate student placement,'' acyclicity is a necessary and sufficient condition for the ...
Bettina Klaus, Flip Klijn
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Photonics, 2023 One of the most important problems in the plasmonics of the terahertz (THz) range, which is actively developing now, is the efficient generation of surface plasmon polaritons (SPPs).
Vasily Valerievich Gerasimov +3 more
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Engineering luminopsins with improved coupling efficiencies
Neurophotonics, 2023 ABSTRACT Significance Luminopsins (LMOs) are bioluminescent-optogenetic tools with a luciferase fused to an opsin that allow bimodal control of neurons by providing both optogenetic and chemogenetic access.
Ashley Slaviero +13 more
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, 2022 Catalyst platforms that promote multielectron charge delocalization offer an attractive approach to achieving the CO2 reduction reaction (CO2RR) with selectivity over the competing hydrogen evolution reaction (HER).
Jeffrey, Derrick +6 more
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Biomolecules, 2021 Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a heterogeneous, debilitating, and complex disease. Along with disabling fatigue, ME/CFS presents an array of other core symptoms, including autonomic nervous system (ANS) dysfunction ...
Paula Fernandez-Guerra +8 more
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