نتایج جستجو برای: concealment

تعداد نتایج: 2484  

2016
JENNIFER S. BORGO MICHAEL R. CONOVER

Selecting a nest site is an important decision for waterfowl. Because most nest failure is due to depredation, the primary selective pressure in choosing a nest site should be to reduce depredation risk. This task is dif cult, however, because predators use differing tactics to locate nests, such as olfactory or visual cues. The purpose of this research was to evaluate both the olfactory and vi...

Journal: :International Journal of Computer Applications 2012

Journal: :Family medicine 2007
Anthony J Viera Shrikant I Bangdiwala

Randomization in randomized controlled trials involves more than generation of a random sequence by which to assign subjects. For randomization to be successfully implemented, the randomization sequence must be adequately protected (concealed) so that investigators, involved health care providers, and subjects are not aware of the upcoming assignment. The absence of adequate allocation concealm...

2011
Branislav HRUŠOVSKÝ Stanislav MARCHEVSKÝ Ľudmila MACEKOVÁ

Advances in display and camera technology enable new applications for three-dimensional (3D) scene communication, such as 3DTV. 3D Multi-view video contains a large amount of inter-view statistical dependencies, since all cameras capture the same scene from different viewpoints. Due to the vast raw bit rate, multi-view video data are expected to consume a large portion of available bandwidth. T...

2010
Henrik Cooke Daniel Persson Renat Vafin Jonas Eriksson

Communication over today’s IP-based networks are to some extent subject to packet loss. Most real-time applications, such as video streaming, need methods to hide this effect, since resending lost packets may introduce unacceptable delays. For IP-based video streaming applications such a method is referred to as a packet loss concealment scheme. In this thesis a recently proposed mixture model ...

Journal: :Lancet 2002
Kenneth F Schulz David A Grimes

Proper randomisation rests on adequate allocation concealment. An allocation concealment process keeps clinicians and participants unaware of upcoming assignments. Without it, even properly developed random allocation sequences can be subverted. Within this concealment process, the crucial unbiased nature of randomised controlled trials collides with their most vexing implementation problems. P...

ahmadali shirafkan, ali davariyan, aref salehi, fakhri badaghabadi, fatemeh alizadeh, mohsen nayebpour, mona pourabouk, saeid saleki, sorosh aminosariyeh, vahid khori,

Introduction: Recent evidence has indicated that statins can reduce the incidence of both supraventricular and ventricular arrhythmias with various mechanisms. The primary goal of the present study was to determine direct protective role of simvastatin in modifying concealed conduction and the zone of concealment in a simulated model of atrial fibrillation (AF) in an isolated atrioventricula...

2016
Yohann Pitrey Marcus Barkowsky Patrick Le Callet Romuald Pépion

Scalable Video Coding (SVC) provides a way to encapsulate several video layers with increasing quality and resolution in a single bitstream. Thus it is particularly adapted to address heterogeneous networks and a wide variety of decoding devices. In this paper, we evaluate the interest of SVC in a different context, which is error concealment after transmission on networks subject to packet los...

Journal: :Suicide and Life-Threatening Behavior 2012

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