نتایج جستجو برای: physical states
تعداد نتایج: 1082832 فیلتر نتایج به سال:
Introduction Computationalism, the claim widely held among cognitive scientists that mental states are computational states, has recently come under heavy attack from various directions. Some (especially adherents of connectionism and dynamic systems people”) hold that mind cannot be explained in terms of computation. Others believe that crucial aspects of the intuitive notion of computation ar...
In this paper, we study the phonon and thermal properties of a nanocrystal by using transfer matrix method in the harmonic approximation. The considered system is a mass-spring nanocrystal with a square cross section. At first, for the ideal case, we obtain the phonon spectrum with free boundary conditions. Then we calculate some phonon transport properties of this system, namely, the phonon de...
Following the complex economic and technological changes after the industrial revolution, there was a dramatic change in the size of the cities and the proportion of the population living there which has led to socio-economic damage and adverse environmental impacts, including destruction and alteration of agricultural land use, pollution of air, water and soil. In the meantime, the physical de...
Until the mid-twentieth century, it was thought that complaint of pain has physical or psychological origins. From this time onwards, a large number of researches analyzed the correctness of pain concept and gradually changed the concept of pain. Today, according to theoretical and research resources, regardless of its type, duration and severity, pain is conceptualized as a bio-psychosocial ph...
The right to privacy is one of the most important rights that have a strong link with the moral rules and human dignity. Its aim is the elevation of the human personality and honoring his material and spiritual integrity. The origin of this right is the human rights standards; it is necessarily existent for all persons in any situation and conditions and has been protected by law. Criminal prot...
In this paper, we introduce a notion of generalized states from an EQ-algebra E1 to another EQ-algebra E2, which is a generalization of internal states (or state operators) on an EQ-algebra E. Also we give a type of special generalized state from an EQ-algebra E1 to E1, called generalized internal states (or GI-state). Then we give some examples and basic properties of generalized (internal) st...
An explicit calculation of Casimir effect through an alternative approach of field quantization [1, 2], has been presented in this paper. In this method, the auxiliary negative norm states have been utilized, the modes of which do not interact with the physical states or real physical world. Naturally these modes cannot be affected by the physical boundary conditions. Presence of negative norm ...
introduction: health is one the greatest blessings of great lord to people. many researches have been done that analyzed relation between prayer and health that most of them was about mental health. physical health is a dimension of life that is importance and few researches have been done about it then in this article, we want study the relationship between pray and physical health among the i...
Dirac quantization of electrodynamics on a two-dimensional cylindrical space-time, is considered in an explicit loop and functional representation. Expressions for a sufficient number of physical states are found, so that an inner product can be derived on the space of physical states. The relevant states are found to be a superposition of two disjoint sectors. The ground state is investigated ...
It is explicitly shown that there exist physical states (normalized to 1) in which the Robertson-Schrödinger and Heisenberg uncertainty relations are invalid , namely, the mean values of the physical operators are infinite. Consequently , these relations cannot imply a general physical principle. The explanation by the theory of functional analysis is given : for these states even the definitio...
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