Results 21 to 30 of about 1,069,372 (310)
THEORETICAL MODELS OF DARK ENERGY [PDF]
International Journal of Modern Physics D, 2012 Mounting observational data confirm that about 73% of the energy density consists of dark energy which is responsible for the current accelerated expansion of the Universe. We present observational evidences and dark energy projects. We then review various theoretical ideas that have been proposed to explain the origin of dark energy; they contain the ...
Yoo, Jaewon, Watanabe, Yuki
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Control Theoretic Models of Pointing [PDF]
ACM Transactions on Computer-Human Interaction, 2017 This article presents an empirical comparison of four models from manual control theory on their ability to model targeting behaviour by human users using a mouse: McRuer’s Crossover, Costello’s Surge, second-order lag (2OL), and the Bang-bang model.
Müller, Jörg +3 more
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High-Speed Rail Opening and Green Innovation—Evidence From China
Frontiers in Environmental Science, 2022 Significant progress has been achieved in the construction of transportation infrastructure in China, where a high-speed rail network of considerable scale and high operational speed has been formed.
Xiaolin Yu, Kai Wan
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The Ontology of Theoretical Modelling: Models as Make-Believe [PDF]
, 2009 The descriptions and theoretical laws scientists write down when they model a system are often false of any real system. And yet we commonly talk as if there were objects that satisfy the scientists’ assumptions and as if we may learn about their ...
Toon, Adam
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Theoretical solar models [PDF]
Symposium - International Astronomical Union, 1997 In the last two decades the large amount of accurate helioseismic data has open a new possibility to sound the stellar interiors and to test the stellar evolution theory. This has particularly impulsed a critical reexamination of the basic assumptions and physical inputs in solar modelling.
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International Review of Research in Open and Distributed Learning, 2000 Randy Garrison Abstract The premise of this article is that theoretical frameworks and models are essential to the long-term credibility and viability of a field of practice. In order to assess the theoretical challenges facing the field of distance
Randy Garrison
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Frontiers in Psychology, 2023 The main goal of this paper is to give an overlook of the current state of sexual harassment. In order to do so, we started making a synthesis of the main theoretical approaches to explain sexual harassment, trying to group the studies into different ...
Cristina Cuenca-Piqueras +2 more
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Z-plasty: a comparative study between theoretical and practical elongation [PDF]
Revista Brasileira de Cirurgia Plástica, 2016 INTRODUCTION: The study of the final elongation values produced by 45º, 60º, 75º, and 90º-angle z-plasties performed on the skin of the lower abdomen of fresh cadavers were compared with the theoretical mathematical data published in the literature.
Flavia Carnovale Lima +4 more
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Investigating Musical Performance: Theoretical Models and Intersections
, 2020 "Investigating Musical Performance" considers the wide range of perspectives on musical performance made tangible by the cross-disciplinary studies of the last decades and encourages a comparison and revision of theoretical and analytical paradigms.
Giuriati, Giovanni +3 more
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Theory into Practice: An Overview of Historical Leadership Theories and Approaches
EDISThe Theory into Practice series is designed to outline a chronological perspective of leadership theories and approaches. Each article will highlight a theoretical perspective or leadership approach, a scenario in which the theory or approach can be or ...
Megan S. Cantrell
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