Results 81 to 90 of about 2,108,354 (300)

Complex Hadamard Matrix-Aided Generalized Space Shift Keying Modulation

IEEE Access, 2017
In this paper, we present a complex Hadamard matrix-aided generalized space shift keying (HSSK) modulation scheme, which introduces complex-Hadamard-based signal vectors at the transmitter to provide higher spectrum efficiency than generalized space ...
Han Hai, Xue-Qin Jiang, Wei Duan, Jun Li, Moon Ho Lee, Yongchae Jeong   +5 more
doaj   +1 more source

SVD-Based Image Watermarking Using the Fast Walsh-Hadamard Transform, Key Mapping, and Coefficient Ordering for Ownership Protection

Symmetry, 2019
Proof of ownership on multimedia data exposes users to significant threats due to a myriad of transmission channel attacks over distributed computing infrastructures.
Tahmina Khanam, P. K. Dhar, Saki Kowsar, Jong-Myon Kim   +3 more
semanticscholar   +1 more source

Generalized Hyers–Ulam Stability of Laplace Equation With Neumann Boundary Condition in the Upper Half‐Space

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper investigates the generalized Hyers–Ulam stability of the Laplace equation subject to Neumann boundary conditions in the upper half‐space. Traditionally, Hyers–Ulam stability problems for differential equations are analyzed by examining the system's error, particularly in relation to a forcing term.
Dongseung Kang, Hoewoon B. Kim, Dojin Kim   +2 more
wiley   +1 more source

On the structural and practical identifiability of multi‐echo BBB‐ASL tracer kinetic models

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose Tracer kinetic models are used in arterial spin labeling (ASL); however, deciding which model parameters to fix or fit is not always trivial. The identifiability of the resultant system of equations is useful to consider, since it will likely impact parameter uncertainty.
Tabitha J. Manson, David L. Thomas, Matthias Günther, Lynette J. Tippett, Michael Dragunow, Catherine A. Morgan, Vinod Suresh   +6 more
wiley   +1 more source

On a New Class of Meromorphic Univalent Function Associated with Dziok_Srivastava Operator

Journal of Kufa for Mathematics and Computer, 2015
In this paper, we introduce and study a new class of meromorphic Univalent functions defined by Dziok_Srivastava operator for this class. We obtain coefficient inequality, convex set, closure and Hadamard product (or convolution).Further we obtain a(n,δ
Mohammed Maad Mahdi, Waggas Galib Atshan, Abdul Jalil M. Khalaf   +2 more
doaj   +1 more source

Cartesian MaxGIRF: Model‐based EPI reconstruction incorporating gradient nonlinearity and concomitant field effects

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose Lower field strength scanners with large bore size or complex geometries, and scanners with stronger gradient systems experience increased gradient nonlinearity and concomitant fields, each of which causes distortions in EPI. Current correction approaches based on image‐domain interpolation introduce undesirable spatial blurring.
Nam G. Lee, Sophia X. Cui, Krishna S. Nayak   +2 more
wiley   +1 more source

A High performance and low cost hardware arcitecture for H.264 transform and quantization algorithms [PDF]

, 2005
In this paper, we present a high performance and low cost hardware architecture for real-time implementation of forward transform and quantization and inverse transform and quantization algorithms used in H.264 / MPEG4 Part 10 video coding standard.
Hamzaoglu, Ilker, Hamzaoğlu, İlker, Tasdizen, Ozgur, Taşdizen, Özgür   +3 more
core   +1 more source

Enhancing Lipidomics With High‐Resolution Ion Mobility‐Mass Spectrometry

PROTEOMICS, EarlyView.
ABSTRACT Lipids, indispensable yet structurally intricate biomolecules, serve as critical regulators of cellular function and disease progression. Conventional lipidomics, constrained by limited resolution for isomeric and low‐abundance species, has been transformed by ion mobility‐mass spectrometry (IM‐MS).
Gaoyuan Lu, Shuling Xu, Penghsuan Huang, Lingjun Li   +3 more
wiley   +1 more source

On a New Class of Meromorphic Univalent Function Associated with Dziok_Srivastava Operator

Journal of Kufa for Mathematics and Computer, 2014
In this paper, we introduce and study a new class of meromorphic Univalent functions defined by Dziok_Srivastava operator for this class. We obtain coefficient inequality, convex set, closure and Hadamard product (or convolution).Further we obtain a(n,δ
Waggas Galib Atshan, Abdul Jalil G. Khalaf   +1 more
doaj   +1 more source

Ensemble‐based statistical interpolation of atmospheric variables near the surface

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study introduces ensemble statistical interpolation (EnSI), a sequential implementation of ensemble optimal interpolation (EnOI) for spatial analysis of near‐surface atmospheric variables. EnSI extends traditional OI by incorporating a multi‐scale loop, consecutive observation times, and cross‐correlations between variables, providing more ...
Cristian Lussana, Thomas N. Nipen, Benjamin Ménétrier, Ivar A. Seierstad   +3 more
wiley   +1 more source