نتایج جستجو برای: ss embedded subgroup

تعداد نتایج: 215474  

2013
Andrew Nadeau Gaurav Sharma

Desynchronization vulnerabilities have limited audio watermarking’s success in applications such as digital rights management (DRM). Our work extends (blind-detection) spread spectrum (SS) watermarking to withstand time scale desynchronization (insertion/deletions) by applying dynamic programming (DP). Detection uses short SS watermark blocks with a novel O(N logN) correlation algorithm that pr...

2001
G. BLUMAN

Group-theoretic methods based on local symmetries are useful to construct invariant solutions of PDEs and to linearize nonlinear PDEs by invertible mappings. Local symmetries include point symmetries, contact symmetries and, more generally, Lie-Biicklund symmetries. An obvious limitation in their utility for particular PDEs is the non-existence of local symmetries. A given system of PDEs with a...

2012
Amir Valizadeh Jane Wang

This article investigates efficient blind watermark decoding approaches for hidden messages embedded into host images, within the framework of additive spread spectrum (SS) embedding based for data hiding. We study SS embedding in both the discrete cosine transform and the discrete Fourier transform (DFT) domains. The contributions of this article are multiple-fold: first, we show that the conv...

Journal: :Phytopathology 2004
Jianhua Zhang Saskia A Hogenhout Lowell R Nault Casey W Hoy Sally A Miller

ABSTRACT Epidemics of aster yellows in lettuce in Ohio are caused by at least seven distinct phytoplasma strains in the aster yellows (AY) group. Five of the strains are newly reported: AY-BW, AY-WB, AY-BD3, AY-SS, and AY-SG. All seven strains were characterized based on symptoms in aster and lettuce, and by polymerase chain reaction (PCR). Strain AY-BD2 (formerly 'Bolt') causes yellowing and l...

2015
Yi Hua Shengmao Lin Linxia Gu

Cerebral vasculature is a complex network that circulates blood through the brain. However, the role of this networking effect in brain dynamics has seldom been inspected. This work is to study the effects of blood vessel networks on dynamic responses of the brain under blast loading. Voronoi tessellations were implemented to represent the network of blood vessels in the brain. The brain dynami...

2013
Marc S. Tibber Elaine J. Anderson Tracy Bobin Elena Antonova Alice Seabright Bernice Wright Patricia Carlin Sukhwinder S. Shergill Steven C. Dakin

Compared to unaffected observers patients with schizophrenia (SZ) show characteristic differences in visual perception, including a reduced susceptibility to the influence of context on judgments of contrast - a manifestation of weaker surround suppression (SS). To examine the generality of this phenomenon we measured the ability of 24 individuals with SZ to judge the luminance, contrast, orien...

2003
Arshad Jhumka Neeraj Suri Martin Hiller

We present a framework that facilitates synthesis and validation of fail-safe fault-tolerant programs. Starting from a fault-intolerant program, with safety specification SS, that satisfies its specification in the absence of faults, we present an approach that automatically transforms it into a fail-safe fault-tolerant program, through the addition of a class of detectors termed as SS-globally...

2016
Yong-Jun Ahn Joon-Shik Shin Jinho Lee Yoon Jae Lee Me-Riong Kim Ki Byung Park Jun-Hwan Lee Kyung-Min Shin In-Hyuk Ha

OBJECTIVES To assess medical care and costs of the 3 highest prevalence lumbar disorders-non-specific low back pain (nLBP), intervertebral disc disorder (IDD) and spinal stenosis (SS)-from national billing data to provide basic information for standards of appropriate management. DESIGN Retrospective analysis of National Health Insurance National Patient Sample data provided by the Korean Hea...

2015
Rebecca Cote Robab Katani Matthew R. Moreau Indira T. Kudva Terrance M. Arthur Chitrita DebRoy Michael M. Mwangi Istvan Albert Juan Antonio Raygoza Garay Lingling Li Maria T. Brandl Michelle Q. Carter Vivek Kapur

Shiga toxin-producing Escherichia coli O157:H7 (O157) are significant foodborne pathogens and pose a serious threat to public health worldwide. The major reservoirs of O157 are asymptomatic cattle which harbor the organism in the terminal recto-anal junction (RAJ). Some colonized animals, referred to as "super-shedders" (SS), are known to shed O157 in exceptionally large numbers (>104 CFU/g of ...

2004
RAMJI LAL Ramji Lal

The concept of ‘topological right transversal’ is introduced to study right transversals in topological groups. Given any right quasigroup S with a Tychonoff topology T , it is proved that there exists a Hausdorff topological group in which S can be embedded algebraically and topologically as a right transversal of a subgroup (not necessarily closed). It is also proved that if a topological rig...

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