نتایج جستجو برای: uniform hazard spectra
تعداد نتایج: 282148 فیلتر نتایج به سال:
Determination of tissue optical properties across of diffuse reflectance spectroscopy is an effective and extensively used technique for the non-invasive study of tissues. The methods to obtain the spectra are practically uniform, however, approaches for signal detection and data processing have varied widely. In some cases it is used a physical model (Monte Carlo model, the diffusion approxima...
Semiclassical approximations often involve the use of stationary phase approximations. This method can be applied when h̄ is small in comparison to relevant actions or action differences in the corresponding classical system. In many situations, however, action differences can be arbitrarily small and then uniform approximations are more appropriate. In the present paper we examine different uni...
Semiclassical approximations often involve the use of stationary phase approximations. This method can be applied when h is small in comparison to relevant actions or action diierences in the corresponding classical system. In many situations, however, action diierences can be arbitrarily small and then uniform approximations are more appropriate. In the present paper we examine diierent unifor...
We give new observations on the mixing dynamics of a continuous-time quantum walk on circulants and their bunkbed extensions. These bunkbeds are defined through two standard graph operators: the join G + H and the Cartesian product G ⊕ H of graphs G and H . Our results include the following: • The quantum walk is average uniform mixing on circulants with bounded eigenvalue multiplicity. This ex...
The paper describes the modification conducted for PAN carbon fiber surfaces in solutions of nitric and sulphuric acids. authors studied impact parameters such as temperature, acid concentration, time ratio nitrosulphuric on occurrence reactive groups surface. revealed presence carboxylic ketone range 1663-1798 1568 cm -1 IR spectra fibers. use did not identify sulfur-containing functional spec...
Within the last three decades, twelve major earthquakes (Mw > 6.0) have jolted Pakistan and contributed to a heavy death toll an economic loss of billions dollars, which is immense for any underdeveloped country. Despite generalized description seismic hazards in various regions Pakistan, densely populated cities still require detailed integrated vulnerability analysis overcome impact signif...
BACKGROUND AND PURPOSE The Stenting and Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis (SAMMPRIS) medical group had a much lower primary end point rate than predicted from the preceding Warfarin Aspirin Symptomatic Intracranial Disease (WASID) trial. This result has been attributed to the aggressive medical therapy used in SAMMPRIS, but an alternative hyp...
BACKGROUND One measurement of hs-CRP (high-sensitivity C-reactive protein) is associated with increased risk of cardiovascular disease (CVD). The objective of this study was to characterize the association of cumulative exposure to increased hs-CRP with incident cardiovascular events. METHODS AND RESULTS We included 53 065 participants with hs-CRP measured at 3 examinations in 2006, 2008, and...
BACKGROUND Data are sparse regarding the value of physical activity (PA) surveillance among older adults-particularly among those with mobility limitations. The objective of this study was to examine longitudinal associations between objectively measured daily PA and the incidence of cardiovascular events among older adults in the LIFE (Lifestyle Interventions and Independence for Elders) study...
BACKGROUND AND PURPOSE About one half of those who develop adult-onset moyamoya disease experience intracranial hemorrhage. Despite the extremely high frequency of rebleeding attacks and poor prognosis, measures to prevent rebleeding have not been established. The purpose of this study is to determine whether extracranial-intracranial bypass can reduce incidence of rebleeding and improve patien...
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