نتایج جستجو برای: coopernaghdi thick shell model
تعداد نتایج: 2177712 فیلتر نتایج به سال:
We have investigated the e ects of primeval starbursts on the galactic structure, showing that the dynamical structure of young galaxies is changed by relaxation of a stellar system formed by a starburst-driven out owing gas (superwind). When a superwind interacts with halo gas, an expanding dense supershell of shocked gas is formed. Using a similarity solution for the expanding shell and a con...
Programs were created to analyze the structure of shell modulations at peak compression of spherical implosions. Measurements of the modulations were taken by using absorption of titanium-doped layers placed at distances 1,5,7, and 9 pm from the inner surface of 20 pm-thick plastic CH shells filled with 18 atm of D ~ H ~ gas. These nonuniformities were measured using ratios of monochromatic tar...
We investigate the gravonuclear instabilities reported by Bono et al. (1997a,b) during the onset of helium-shell burning at the end of the horizontal-branch (HB) phase. These instabilities are characterized by relaxation oscillations within the helium shell which lead to loops in the evolutionary tracks. We find the occurrence of these instabilities depends critically on how the breathing pulse...
We report a systematic study of photoluminescence (PL) intensity and lifetime fluctuations in individual CdSe/CdS core/shell nanocrystal quantum dots (NQDs) as a function of shell thickness. We show that while at low pump intensities PL blinking in thin-shell (4-7 monolayers, MLs) NQDs can be described by random switching between two states of high (ON) and low (OFF) emissivities, it changes to...
Abstract Cystic fibrosis (CF) is characterized by an airway obstruction caused a thick mucus due to malfunctioning Fibrosis Transmembrane Conductance Regulator (CFTR) protein. The sticky restricts drugs in reaching target cells limiting the efficiency of treatments. development new approaches enhance drug delivery lungs represents CF treatment's main challenge. In this work, we report productio...
Recent work has resulted in the first high-resolution, spectroscopic measurements of energetic charged particles on OMEGA. Energy spectra of charged fusion products have been obtained from two spectrometers, and have been used to deduce various physical quantities in imploded capsules. In this paper we discuss the first use of 14.7-MeV D-He proton spectra for diagnosing shell areal density (ρR)...
Tidal deformation of icy satellites provides crucial information on their subsurface structures. In this study, we investigate the parameter dependence of the tidal displacement and potential Love numbers (i.e., h2 and k2, respectively) of Ganymede. Our results indicate that Love numbers for Ganymede models without a subsurface ocean are not necessarily smaller than those with a subsurface ocea...
The ultra-structure of the shell and the morphometric variability of soil inhabiting testate amoeba Lamtopyxiscallistoma from Madagascar were studied by using light- and scanning electron microscopy. The biometrical characteristic of the species was made on the basis of 75 specimens measured. In addition to the diameter of the shell, six other shell characters were described biometrically for t...
The brachiopoda, Lingula unguis, has a pair of anterior adductors located in the center of the shell. Each muscle consists of an opaque and a translucent portion which is constructed of smooth and obliquely-striated muscle respectively. According to our ultrastructural observations, the opaque portion seems to have two types of cells. They differ only in the diameters of their thick myofilament...
The fluorescence of a rhodamine X dye covalently linked to the 5' terminus of a 25-mers thymine oligodeoxynucleotide (dT25-ROX), adsorbed on the shell of thermo responsive core-shell polymer particles, was used to probe the polarity, mobility, and distribution of the oligodeoxynucleotides (ODNs) in the shell. The particles have a glassy core of poly(methyl methacrylate) (PMMA) with a 67-nm radi...
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