نتایج جستجو برای: physical property

تعداد نتایج: 803759  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Peter Sondermann Andrew Pincetic Jad Maamary Katja Lammens Jeffrey V Ravetch

Journal: :Optics letters 2013
Yongtao Fan Jingsong Wei Jianyong Ma Yang Wang Yiqun Wu

In this work, we theoretically and experimentally study the physical process of Airy beams induced by binary phase patterns combined with a slope factor. Theoretical simulations show that the binary phase patterns generate a pair of symmetrically inverted twin Airy beams. The slope factor can regulate the spacing between the two Airy beam peaks, decrease the error induced by the binarization pr...

Journal: :Explore 2005
B J Dunne R G Jahn

The possibility of a proactive role for consciousness in the establishment of physical reality has been addressed via an extensive 26-year program investigating physical anomalies in human/machine interactions and non-sensory acquisition of information about remote geographical locations. Empirical databases comprising many hundreds of millions of random events confirm that information can be i...

Journal: :Annals of the New York Academy of Sciences 2013
David J Chalmers

This chapter gives an overview of the projects facing a science of consciousness. Such a science must integrate third-person data about behavior and brain processes with first-person data about conscious experience. Empirical projects for integrating these data include those of contrasting conscious and unconscious processes, investigating the contents of consciousness, finding neural correlate...

Journal: :The Journal of chemical physics 2004
F Valencia A H Romero Miguel Kiwi R Ramirez A Toro-Labbe

The spatial arrangements and physical properties of one- and two-dimensional structures, based on the amazing cubane (C(8)H(8)) molecule, are investigated in detail. In particular, we compute the electronic structure, both by first principle calculations and by semiempirical methods. The elastic and vibrational properties are evaluated as well. All these results are compared with those of the s...

2005
L. I. Petrova

A great number of works is devoted to qualitative investigation of Hamiltonian systems. One of tools of such investigation is the method of skew-symmetric differential forms [1-3]. In present work, under investigation Hamiltonian systems in addition to skew-symmetric exterior differential forms, skew-symmetric differential forms, which differ in their properties from exterior forms, are used. T...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Lorena Pompilio Alex Kacelnik

A core problem of decision theories is that although decisionmakers' preferences depend on learning, their choices could be driven either by learned representations of the physical properties of each alternative (for instance reward sizes) or of the benefit (utility and fitness) experienced from them. Physical properties are independent of the subject's state and context, but utility depends on...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2003
Berit Hinnemann Haye Hinrichsen Dietrich E Wolf

It has been observed experimentally that under certain conditions, pulsed laser deposition (PLD) produces smoother surfaces than ordinary molecular beam epitaxy (MBE). So far, the mechanism leading to the improved quality of surfaces in PLD is not yet fully understood. In the present work, we investigate the physical properties of a simple model for PLD, in which the transient mobility of adato...

Journal: :Science 2014
David W J Thompson Elizabeth A Barnes

Periodic behavior in the climate system has important implications not only for weather prediction but also for understanding and interpreting the physical processes that drive climate variability. Here we demonstrate that the large-scale Southern Hemisphere atmospheric circulation exhibits marked periodicity on time scales of approximately 20 to 30 days. The periodicity is tied to the Southern...

Journal: :Organic & biomolecular chemistry 2013
Daijiro Hibi Kenichi Kitabayashi Akihiro Shimizu Rui Umeda Yoshito Tobe

Zethrene derivatives substituted by phenylethynyl groups bearing electron-donating and/or accepting groups were synthesised by iodine-induced transannular cyclisation of dehydrodinaphtho[10]annulene as the pivotal step followed by Sonogashira coupling reaction. Their physical properties were investigated to elucidate the effects of the substituents on the electronic configuration of the zethren...

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