نتایج جستجو برای: restoration cause
تعداد نتایج: 445059 فیلتر نتایج به سال:
Deconnnement and chiral symmetry restoration are explored in a connning, renormalisable, Dyson-Schwinger equation model of two-avour QCD. An order parameter for deconnnement is introduced and used to establish that, in the chiral limit, deconnnement and chiral symmetry restoration are coinci-dent at T c 150 MeV. The transitions are second order and each has the same critical exponent: 0:3. The ...
INTRODUCTION: Restoration of acquired, congenital, or age-related soft tissue defects using autologous or implantable materials can cause donor site morbidity, infection, device failure, and fibrosis. Injectable fillers are limited by variable resorption and fat grafting causes necrosis in large volumes. An alternative approach using the body’s regenerative capacity and an injectable synthetic ...
magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...
Forest restoration often includes thinning to reduce tree density and improve ecosystem processes and function while also reducing the risk of wildfire or insect and disease outbreaks. However, one drawback of these restoration treatments is that slash is often burned in piles that may damage the soil and require further restoration activities. Pile burning is currently used on many forest site...
Research indicates that microleakage is the major cause of composite restoration failure. Because the different physical properties of composite resin and tooth structure cause microleakage in composite tooth restorations, it is possible to eliminate microleakage by making composite's physical properties more similar to those of tooth structure. This article reviews the physical properties of c...
In this paper, we propose a new class of Volterra series based filters for image enhancement and restoration. Generally the linear filters reduce the noise and cause blurring at the edges. Some nonlinear filters based on median operator or rank operator deal with only impulse noise and fail to cancel the most common Gaussian distributed noise. A class of second order Volterra filters is propose...
Comminuted, intra-articular calcaneal fractures can cause severe lower extremity impairment and have devastating effects on a patient's well being. Diabetes is a multisystem process that may cause neuropathy and loss of protective sensation further complicating the prognosis. Not all calcaneal fractures are created equal and when considering the patient's overall presentation and extent of inju...
Direct composite resin restoration of the patient with aesthetic problems in anterior teeth has been told. However, the patient's concerns that may occur after treatment have been handled. Different composite and restorative materials are used routinely in clinical practice. In particular, the restorations in the anterior region may cause the patients to worry. Many questions like those; "What ...
In generally, the resolution of reconstructed three-dimensional images can be seriously degraded by undesired occlusions in the integral imaging system, because the undesired information of the occlusion overlap the three-dimensional images to be reconstructed. To solve the problem of the undesired occlusion, we present an exemplar-based image restoration method in integral imaging system. In t...
Fault management has become critical in managing survivability of high speed networks. Impact of failure is aggravated with extremely high volume of traffic carried on WDM (Wavelength Division Multiplexing) networks. In a WDM network, failure of a network element may cause failure of several optical channels leading to large data loss which can interrupt communication services. In this paper, e...
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