9,715,944 research outputs found

    Telemetry word forming unit

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    Telemetry data unit to form multibit words for use between demodulator and compute

    Evolution of Earth-Lunar Transportation Systems

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    Space science - earth-lunar missions - high-energy propellants and nuclear propulsion systems in manned space fligh

    High-spin low-spin transition

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    Temperature dependent nuclear inelastic-scattering (NIS) of synchrotron radiation was applied to investigate both spin states of the spin-crossover complex [Fe(tpa)(NCS)(2)] (tpa = tris(2-pyridylmethyl)amine). A remarkable increase of the iron-ligand bond stretching upon spin crossover has unambiguously been identified by comparing the measured NIS spectra with theoretical simulations based on density-functional calculations

    Bohmian mechanics in relativistic quantum mechanics, quantum field theory and string theory

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    I present a short overview of my recent achievements on the Bohmian interpretation of relativistic quantum mechanics, quantum field theory and string theory. This includes the relativistic-covariant Bohmian equations for particle trajectories, the problem of particle creation and destruction, the Bohmian interpretation of fermionic fields and the intrinsically Bohmian quantization of fields and strings based on the De Donder-Weyl covariant canonical formalism.Comment: 6 pages, talk given at Third International Workshop DICE2006, Piombino, Italy, September 11-15, 200

    The origin of the Japanese and Korean accent systems

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    S.R. Ramsey writes (1979: 162): "The patterning of tone marks in Old Kyoto texts divides the vocabulary into virtually the same classes as those arrived at by comparing the accent distinctions found in the modern dialects. This means that the Old Kyoto dialect had a pitch system similar to that of proto-Japanese. The standard language of the Heian period may not actually be the ancestor of all the dialects of Japan, but at least as far as the accent system is concerned, it is close enough to the proto system to be used as a working model. The significance of this fact is important: It means that each of the dialects included in the comparison has as much to tell, at least potentially, as any other dialect about Old Kyoto accent.

    Early dialectal diversity in South Slavic I

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    The large majority of the isoglosses which can be established in the South Slavic dialectal area date from the time of the disintegration of Common Slavic and from more recent periods (e.g., Ivi´c 1958: 25ff). The isoglosses have often shifted in the course of the centuries, so that their original position cannot always be determined. In this study I shall concentrate upon the dialectal differences which originated before the 10th century. At that time, Slavic was still a largely uniform language, though it was certainly not completely homogeneous

    Nivkh as a Uralo-Siberian language

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    In his magnificent book on the language relations across Bering Strait (1998), Michael Fortescue does not consider Nivkh (Gilyak) to be a Uralo-Siberian language. Elsewhere I have argued that the Indo-European verbal system can be understood in terms of its Indo-Uralic origins (2001). All of these languages belong to Joseph Greenberg’s Eurasiatic macro-family (2000). In the following I intend to reconsider the grammatical evidence for including Nivkh into the Uralo-Siberian language family. The Indo-Uralic evidence is of particular importance because it guarantees a time depth which cannot otherwise be attained

    Indo-Uralic and Altaic

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    Elsewhere I have argued that the Indo-European verbal system can be understood in terms of its Indo-Uralic origins because the reconstructed Indo-European endings can be derived from combinations of Indo-Uralic morphemes by a series of well-motivated phonetic and analogic developments (2002). Moreover, I have claimed (2004b) that the Proto-Uralic consonant gradation accounts for the peculiar correlations between Indo-European root structure and accentuation discovered by Lubotsky (1988)

    An agent-based dynamic information network for supply chain management

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    One of the main research issues in supply chain management is to improve the global efficiency of supply chains. However, the improvement efforts often fail because supply chains are complex, are subject to frequent changes, and collaboration and information sharing in the supply chains are often infeasible. This paper presents a practical collaboration framework for supply chain management wherein multi-agent systems form dynamic information networks and coordinate their production and order planning according to synchronized estimation of market demands. In the framework, agents employ an iterative relaxation contract net protocol to find the most desirable suppliers by using data envelopment analysis. Furthermore, the chain of buyers and suppliers, from the end markets to raw material suppliers, form dynamic information networks for synchronized planning. This paper presents an agent-based dynamic information network for supply chain management and discusses the associated pros and cons
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