نتایج جستجو برای: s principle

تعداد نتایج: 850618  

2000
N. F. Svaiter

In this work we consider a quantum analog of Newton’s bucket experiment in a flat spacetime: we take an Unruh-DeWitt detector in interaction with a real massless scalar field. We calculate the detector’s excitation rate when it is uniformly rotating around some fixed point and the field is prepared in the Minkowski vacuum and also when the detector is inertial and the field is in the Trocheries...

2012
J. R. Croca

The unification of the basic physical laws, from classical physics, quantum physics to gravitic physics seems now possible. The key for this unity is the principle of eurhythmy, literally from the Greek, the principle of the most adequate path. It will be shown that Heron principle of minimum path, Fermat ́s principle of minimum time and de Broglie ́s guiding principle are no more than mere parti...

2009
Akira Hitachi Momo Takata

The diffraction of ultrasound by a circular disk and an aperture of the same size have been investigated as a demonstration of Babinet‟s principle in the Fresnel regime. The amplitude and the phase of diffracted ultrasonic waves have been measured and a graphical treatment of the results is performed. The results verify Babinet‟s principle. It is also found that the wave without the diffracting...

2012
Noriaki Matsushima

The arm’s length principle states that the transfer price between two associated enterprises should be the price that would be paid for similar goods in similar circumstances by unrelated parties dealing at arm’s length with each other. This paper examines the effect of the arm’s length principle on dynamic competition in imperfectly competitive markets. It is shown that the arm’s length princi...

Journal: :Math. Log. Q. 2006
Norman Danner Chris Pollett

It is well known that S1 2 cannot prove the injective weak pigeonhole principle for polynomial time functions unless RSA is insecure. In this note we investigate the provability of the surjective (dual) weak pigeonhole principle in S1 2 for provably weaker function classes. §

1990
Eugene W. Stark

Kahn's principle states that if each process in a dataaow network computes a continuous input/output function, then so does the entire network. Moreover, in that case the function computed by the network is the least xed point of a continuous functional determined by the structure of the network and the functions computed by the individual processes. Previous attempts to generalize this princip...

Journal: :categories and general algebraic structures with application 0
marcel ern'e faculty for mathematics and physics, iazd, leibniz universit"at, welfengarten 1, d 30167 hannover, germany.

we show that in {bf zf} set theory without choice, the ultrafilter mbox{principle} ({bf up}) is equivalent to several compactness theorems for alexandroff discrete spaces and to rudin's lemma, a basic tool in topology and the theory of quasi-continuous domains. important consequences of rudin's lemma are various lift lemmas, saying that certain properties of posets are inherited by th...

1999
Peter Schuster

The power of Darwinian evolution is based on the dichotomy of genotype and phenotype with the former being the object under variation and the latter constituting the target of selection. Only the simplest case of an evolutionary process , the optimization of RNA molecules in vitro, where phenotypes are understood as RNA structures, can be handled explicitly. We derive a model based on diieren-t...

Journal: :فصلنامه علمی پژوهشی علوم سیاسی 0
جلال درخشه استادیار علوم سیاسی دانشگاه امام صادق(ع)

after the iranian mashrooté revolution, the shiite political thought faced a new era of much attention, contemplation and explanation, when religious scholars embarked on a new research project to address the new situation. the most serious attempt to deal with the theoretical gap and crisis in islamic state was contributed by imam khomaini. in his theory of state, he conjoined the shiite princ...

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