نتایج جستجو برای: edge corona

تعداد نتایج: 125944  

2004
XINWU CAO

We use a sample of radio-loud active galactic nuclei (AGNs) with estimated central black hole masses to explore their jet formation mechanisms. The jet power of AGNs is estimated from their extended radio luminosity. It is found that the jets in several AGNs of this sample are too powerful to be extracted from the standard thin accretion disks or rapidly spinning black holes surrounded by stand...

2004
B. F. Liu F. Meyer E. Meyer - Hofmeister

We study the possibility of a cool disk existing in the Galactic Center in the framework of the disk-corona evapora-tion/condensation model. Assuming an inactive disk near the gravitational capture distance left over from an earlier evolutionary stage, a hot corona should form above the disk since there is a continuous supply of hot gas from stellar winds of the close-by massive stars. We study...

2017
Pierre Magnier Dunpin Hong Annie Leroy-Chesneau Jean-Michel Pouvesle Jacques Hureau Pierre MAGNIER Dunpin HONG Annie LEROY-CHESNEAU Jean- Michel Jacques HUREAU

This paper describes a DC surface corona discharge designed to modify the airflow around a flat plate. The electrode configuration consisted of two thin copper layers placed on each side of the plate’s attack edge. Discharge optical measurements with a photomultiplier tube indicated that the light emitted by the plasma is pulsating, at a frequency that increases with applied voltage. Moreover, ...

2004
Vadim E. Levit Eugen Mandrescu

A stable set in a graph G is a set of pairwise non-adjacent vertices. The independence polynomial of G is I(G;x) = s0+s1x+s2x 2 +...+sαx α , where α = α(G) is the cardinality of a maximum stable of G, while sk equals the number of stable sets of size k in G (Gutman and Harary, 1983). Hamidoune, 1990, showed that for every claw-free graph G (i.e., a graph having no induced subgraph isomorphic to...

Journal: :transactions on combinatorics 2016
wai chee shiu

let g=(v,e) be a simple graph. an edge labeling f:e to {0,1} induces a vertex labeling f^+:v to z_2 defined by $f^+(v)equiv sumlimits_{uvin e} f(uv)pmod{2}$ for each $v in v$, where z_2={0,1} is the additive group of order 2. for $iin{0,1}$, let e_f(i)=|f^{-1}(i)| and v_f(i)=|(f^+)^{-1}(i)|. a labeling f is called edge-friendly if $|e_f(1)-e_f(0)|le 1$. i_f(g)=v_f(1)-v_f(0) is called the edge-f...

Journal: :Nanoscale 2013
Morteza Mahmoudi Mohammad A Shokrgozar Shahed Behzadi

It is known that what the cell actually "sees" at the nanoscale is an outer shell formed of 'protein corona' on the surface of nanoparticles (NPs). The amount and composition of various proteins on the corona are strongly dependent on the biophysicochemical properties of NPs, which have been extensively studied. However, the effect of a small variation in temperature, due to the human circadian...

2015
A Weidner C Gräfe M von der Lühe H Remmer J H Clement D Eberbeck F Ludwig R Müller F H Schacher S Dutz

Nanoparticles experience increasing interest for a variety of medical and pharmaceutical applications. When exposing nanomaterials, e.g., magnetic iron oxide nanoparticles (MNP), to human blood, a protein corona consisting of various components is formed immediately. The composition of the corona as well as its amount bound to the particle surface is dependent on different factors, e.g., partic...

2008
TIMOTHY R. KALLMAN

X-ray illumination of accretion disks is an invaluable diagnostic of the structure of these disks because of the associated iron Kα emission. Here we point out that the resulting reflected spectra depend very sensitively on the geometry of the X-ray source, and that this fact can be efficiently used to test these models observationally. In particular, we discuss three different accretion disk g...

Introduction: The spread of the corona virus and its psychological consequences is one of the most important human social events in the 21st century. Nurses are facing the psychological consequences of it. Moreover, coping strategies, including problem solving, are methods to deal with Corona anxiety. Therefore, the purpose of the current research is to predict the anxiety of Corona based on co...

2017
Alexander Engel Christopher Wulff

This paper is a systematic approach to the construction of coronas (i. e. Higson dominated boundaries at infinity) of combable spaces. We introduce three additional properties for combings: properness, coherence and expandingness. Properness is the condition under which our construction of the corona works. Under the assumption of coherence and expandingness, attaching our corona to a Rips comp...

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