Results 51 to 60 of about 407,065 (213)
Network Structure and the Efficiency Gains from Mergers: Evidence from U.S. Freight Railroads
The RAND Journal of Economics, EarlyView.ABSTRACT The trade‐off between market power and efficiency gains is central to antitrust analyses of mergers, but empirical evidence quantifying efficiencies remains limited. Using transaction‐level data from U.S. freight railroads (1985–2005), this article quantifies merger‐induced cost efficiencies, driven mainly by eliminating inter‐railroad ...
Yanyou Chen
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Eletrônica de Potência, 2013 This work presents the detailed analysis of the dc-dc nonisolated buck converter based on the three-state switching cell operating in overlapping mode, which occurs when the duty cycle of the active switches is higher than 0.5.
Falcondes José Mendes de Seixas +4 more
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Cladistics, EarlyView.Abstract A long‐standing challenge in phylogenomics has been the resolution of relationships originated from ancient radiations. In these cases, phenomena such as incomplete lineage sorting can increase the support for conflicting resolutions. Most of the diversity in the Class Bivalvia originated during an Ordovician radiation; indeed, several deep ...
Alessandro Formaggioni +7 more
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High Power Efficiency Buck Converter Design for Standalone Wind Generation System
International Journal of Antennas and Propagation, 2015 In wind generation system, the power converter efficiency is one of the key factors for the performance of the system. In those systems, DC/DC Buck converter is widely used for high power system.
Yigeng Huangfu +3 more
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High-efficiency buck–boost converter and its control strategy suitable for wide voltage range
The Journal of Engineering, 2019 In view of the need of near-space vehicle energy management system to adapt to wide input and wide output voltage range, this study presents a high-efficiency buck–boost converter and its control strategy suitable for wide voltage range. In this study, a
Dong Baolei +4 more
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Journal of Money, Credit and Banking, EarlyView.Abstract We evaluate whether deposit insurance (DI) promotes liquidity by influencing depositor behavior. We use the postal savings (PS) system and state‐adopted DI schemes during the 1920s to examine the effect of bank suspensions on PS deposit growth in pairs of border cities (DI versus non‐DI).
Lee K. Davison, Carlos D. Ramirez
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EnergiesTo enhance equalization efficiency and address the issue of traditional equalization methods overlooking temperature factors, this paper proposes a multilayer equalization circuit for both intra-group and inter-group balancing. The traditional Buck-Boost
Xingyang Su +4 more
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Journal of Systematics and Evolution, EarlyView.We present the first phylogenetic analysis of the Californian species of Myosurus. Our ddRADseq analysis reveals considerably more diversity than what was recognized in recent floristic treatments. Myosurus minimus subsp. apus was found to be a rare species restricted to Southern California and northwestern Baja California.
R. Douglas Stone +2 more
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Letter to Alfred H. Buck from Frank Buck, 1877 January 1
, 1877 A handwritten letter to Alfred H. Buck from Frank Buck concerning Charley's money matters, dated January 1, 1877.Archival master image scanned in reflective mode as 48-bit RGB color TIFF using Epson 11000XL.
Buck, Frank
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The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?
Marine Ecology, EarlyView.ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie +2 more
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