نتایج جستجو برای: on horizon slices

تعداد نتایج: 8428579  

Journal: :Classical and Quantum Gravity 2012

Journal: :avicenna journal of dental research 0
ehsan hekmatian assistant professor, torabinejad dental research center, department of oral and maxillofacial radiology, school of dentistry, isfahan university of medical sciences, isfahan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (isfahan university of medical sciences) roshanak ghaffari assistant professor, department of oral and maxillofacial radiology, school of dentistry, islamic azad university khorasgan branch, isfahan, ir iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) mohammad toghyani dentist, ir iran mitra karbasi kheir assistant professor, department of oral and maxillofacial radiology, school of dentistry, islamic azad university isfahan ( khorasgan branch), isfahan, ir iran; assistant professor, department of oral and maxillofacial radiology, school of dentistry, islamic azad university isfahan ( khorasgan branch), isfahan, ir iran. tel: +98-9134088924سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

conclusions there was no statistically significant difference in the parotid absorbed dose between spiral tomography and a panoramic radiograph (p value = 0.18). the overall results of this study were similar to other studies. results for the tube side parotid, the average absorbed doses in spiral tomography of the anterior and posterior parts of the maxilla and mandible, with the 2 mm slice th...

H.A. Sadeghi , Mir.B.Gh. Aryanezhad , S. J Sadjadi ,

We present an improved implementation of the Wagner-Whitin algorithm for economic lot-sizing problems based on the planning-horizon theorem and the Economic- Part-Period concept. The proposed method of this paper reduces the burden of the computations significantly in two different cases. We first assume there is no backlogging and inventory holding and set-up costs are fixed. The second model ...

2004
Jeffrey Weeks Jean-Pierre Luminet Alain Riazuelo Roland Lehoucq

A widespread myth asserts that all small universe models suppress the CMB quadrupole. In actual fact, some models suppress the quadrupole while others elevate it, according to whether their low-order modes are weak or strong relative to their high-order modes. Elementary geometrical reasoning shows that a model’s largest dimension determines the rough value lmin at which the CMB power spectrum ...

Journal: :ZOR - Meth. & Mod. of OR 1993
Eitan Altman

We present in this paper several asymptotic properties of constrained Markov Decision Processes (MDPs) with a countable state space. We treat both the discounted and the expected average cost, with unbounded cost. We are interested in (1) the convergence of nite horizon MDPs to the innnite horizon MDP, (2) convergence of MDPs with a truncated state space to the problem with innnite state space,...

1995
Suresh P. Sethi

Miller and Modigliani (1961) consider valuation of innnite horizon rms that may not engage in purchasing their own shares. While their fundamental valuation approach applies also to rms that purchase their own shares, their stream of dividends approach does not. The latter approach is modiied so that it can be used for valuation of innnite horizon rms including those which may purchase their ow...

2010
Myung-Hwan Oh Jun-Ho Oh

In this study, stability conditions of receding horizon control (RHC) based on a horizon size are proposed for linear discrete systems. The proposed stability conditions present a relevant horizon size which can guarantee the stability of RHC even though a final state weighting matrix does not satisfy non-increasing monotonicity of optimal cost. Therefore, the possible range of the final state ...

2002
Kristján R. Kristjánsson Lárus Thorlacius

We study cosmological solutions of Einstein gravity with a positive cosmological constant and perfect fluid matter in diverse dimensions. These include big-bang models that re-collaspse, big-bang models that approach de Sitter acceleration at late times, and bounce models that are both past and future asymptotically de Sitter. The re-collapsing and the bounce geometries are all tall in the sens...

Journal: :Scientific Reports 2021

Abstract From any location outside the event horizon of a black hole there are an infinite number trajectories for light to observer. Each these paths differ in orbits revolved around and their proximity last photon orbit. With simple numerical perturbed analytical solution null-geodesic equation Schwarzschild we will reaffirm how each additional orbit is factor $$e^{2 \pi }$$ <mml:math xmlns:m...

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