نتایج جستجو برای: mond protected area

تعداد نتایج: 632656  

2009
L. Iorio

We simultaneously integrate in a numerical way the equations of motion of both the Magellanic Clouds (MCs) in the MOdified Newtonian Dynamics (MOND), MOdified Gravity (MOG) and Cold Dark Matter (CDM) frameworks for −1 ≤ t ≤ 1 Gyr in order to see if, at least in principle, it is possible to discriminate between them. Since the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC) are...

2004
Jörn Dunkel

Numerous astrophysical observations have shown that classical Newtonian dynamics fails on galactic scales and beyond, if only visible matter is taken into account. The two most popular theoretical concepts dealing with this problem are Dark Matter (DM) and Modified Newtonian Dynamics (MOND). In the first part of this paper it is demonstrated that a generalized MOND equation can be derived in th...

Journal: :journal of rangeland science 2014
negin nodehi mousa akbarlou adel sepehry hasan vahid

abstract. the purpose of this study was to investigate the effects of topographical factors on the classification of grassland plant communities in the rangelands of ghorkhud, northern khorasan province, iran. for sampling, land units were specified. a floristic list was prepared using minimal area method based on the nested plot (braun-blanquet method). 116 10m2 furrows were selected. within e...

Journal: :Inf. Sci. 2005
Izhar Ahmad

A pair of Mond–Weir type second order symmetric nondifferentiable multiobjective programs is formulated. Weak, strong and converse duality theorems are established under g-pseudobonvexity assumptions. Special cases are discussed to show that this paper extends some work appeared in this area. 2004 Elsevier Inc. All rights reserved.

2008
Adi Nusser

We examine the implications of Modified Newtonian Dynamics (MOND) on the large scale structure in a Friedmann-Robertson-Walker universe. We employ a “Jeans swindle” to write a MOND-type relationship between the fluctuations in the density and the gravitational force, g. In linear Newtonian theory, |g| decreases with time and eventually becomes < g0 , the threshold below which MOND is dominant. ...

2007
R. H. Sanders

We extend the MOND analysis to a sample of 17 high surface brightness, early-type disc galaxies with rotation curves derived from a combination of 21cm Hi line observations and optical spectroscopic data. A number of these galaxies have asymptotic rotation velocities between 250 and 350 km/s making them among the most massive systems (in terms of baryonic mass) considered in the context of MOND...

ژورنال: :نشریه محیط زیست طبیعی 2010
یگانه سپاسی افشین دانه کار افشین علیزاده علی اصغر درویش صفت رزیتا شریفی پور

ecotourism is known as a type of sustainable tourism which helps both conservation and development, but many of tourism sites go to instability and self-destruction because of unsuitable environment assessment. besides it is necessary to introduce new region for increasing of protected area in iran. using related criteria is an appropriate method for selection of suitable protected area and eco...

2005
R. H. Sanders

I review various ideas on MOND cosmology and structure formation beginning with non-relativistic models in analogy with Newtonian cosmology. I discuss relativistic MOND cosmology in the context of Bekenstein’s theory and propose an alternative biscalar effective theory of MOND in which the acceleration parameter, a0 is identified with the cosmic time derivative of a matter coupling scalar field...

Journal: :Zoos' Print Journal 1999

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