نتایج جستجو برای: cluster diameter
تعداد نتایج: 312063 فیلتر نتایج به سال:
In several merging clusters of galaxies so-called cluster radio relics have been observed. These are extended radio sources which do not seem to be associated with any radio galaxy. Two competing physical mechanisms to accelerate the radio emitting electrons have been proposed: (i) diffusive shock acceleration and (ii) adiabatic compression of fossil radio plasma by merger shock waves. Here the...
Pistachio is one of the most important horticultural crops in Iran. There is a unique role for amino acids in the plant response to stressful conditions, and special physiological role for Arginine (Arg) compared to other amino acids. The effects of this compound were investigated on vegetative and reproductive characters of bearing pistachio trees of ‘Ahmad-Aghaei’. The experiments were done...
In order to study the genetic variation among local varieties of onion in Iran, an experiment was conducted in the Research Center, Faculty of Agriculture, Tabriz University. Sixteen populations were evaluated for agronomic characteristics and also total seed proteins via SDS-PAGE. Cluster analysis and principal component analysis were used to group the onion populations under study. Analysis o...
We report the discovery of XMMXCS J2215.9 1738, a massive galaxy cluster at , which was found z p 1.45 in the XMM Cluster Survey. The cluster candidate was initially identified as an extended X-ray source in archival XMM data. Optical spectroscopy shows that six galaxies within a ∼60 diameter region lie at . z p 1.45 0.01 Model fits to the X-ray spectra of the extended emission yield keV (90% c...
The potential of polymeric nanostructures obtained by extruding polymer solutions through reusable anodic aluminum oxide (AAO) nanopores for the fabrication is investigated systematically to be able unveil impact structure on cell culturing. Thus, nanostructured Na-alginate and poly(vinyl alcohol) (PVA) polymers as well blended alginate/PVA hydrogels are fabricated. PVA fibers with different di...
salvia is a valuable medicinal and aromatic genus belongs to the lamiaceae family. in this study, morphological traits and essential oil content were used for the estimate of variability and to determine the relationship among different species of salvia including s. syriaca (5 ecotypes), s. virgate (8 ecotypes), s. reuterana (6 ecotypes) and s. multicaulis (6 ecotypes) collected from the south...
partial rootzone drying (prd) is a new irrigation technique which improves water use efficiency without significant yield reduction in grape. to study the effects of partial rootzone drying and green pruning on yield and yield quality of thompson seedless grape a split plot experiment with randomized complete block design and three replications was conducted. the experiment was performed in tak...
Helichrysum italicum (Roth.) G. Don is an aromatic perennial shrub widespread across the Mediterranean Basin. Plants from this species show a high degree of morphological variability. This research examines variation inside H. population growing in natural conditions and correlation between observed traits. Morphometric characteristics synflorescence were measured on plants wild northwestern co...
The architecture of spray cut chrysanthemum is crucial for the quality and quantity flower production. However, mechanism underlying plant still needs to be clarified. In this study, we measured nine architecture-related traits 195 varieties during a two-year period. results showed that number upper primary branches, lateral buds branch length widely varied. Additionally, height had significant...
www.sciencemag.org SCIENCE VOL 327 1 JANUARY 2010 7 COVER Crystal structure of a molybdenum oxide nanowheel, 2.6 nanometers in diameter, around a smaller molybdenum oxide cluster. Miras et al. (page 72; related Perspective page 38) used a controlled-flow reactor to show that the central core serves as a transient template for the self-assembly of the nanowheel and is ultimately ejected to yield...
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