Results 71 to 80 of about 2,157,914 (307)

Walsh‐Hadamard‐transform‐based SC‐FDMA system using WARP hardware

open access: yesETRI Journal, 2021
Single‐carrier frequency division multiple access (SC‐FDMA) is currently being used in long‐term evolution uplink communications owing to its low peak‐to‐average power ratio (PAPR). This study proposes a new transceiver design for an SC‐FDMA system based
Shri Ramtej Kondamuri, Sundru Anuradha
doaj   +1 more source

EXPLOITING PARTIALLY RECONFIGURABLE FPGA FOR PERFORMANCE ADJUSTMENT IN THE RVC FRAMEWORK [PDF]

open access: yes, 2012
International audienceIn this paper, we present a method to implement a specific algorithm using the RVC framework and the dynamic partial reconfiguration (DPR). The DPR is a technique allowing to replace modules in a design at run-time.
Abid, Mohamed   +3 more
core   +2 more sources

Hadamard single-pixel imaging versus Fourier single-pixel imaging

open access: yes, 2017
Single-pixel imaging is an innovative imaging scheme and has received increasing attentions in recent years. It is applicable to imaging at non-visible wavelengths and imaging under low light conditions. However, single-pixel imaging has once encountered
Wang, Xueying   +3 more
core   +1 more source

Advanced Experiment Design Strategies for Drug Development

open access: yesAdvanced Intelligent Discovery, EarlyView.
Wang et al. analyze 592 drug development studies published between 2020 and 2024 that applied design of experiments methodologies. The review surveys both classical and emerging approaches—including Bayesian optimization and active learning—and identifies a critical gap between advanced experimental strategies and their practical adoption in ...
Fanjin Wang   +3 more
wiley   +1 more source

Non-Markov Nonparametric Estimation of Complex Multistate Outcomes After Hematopoietic Stem Cell Transplantation. [PDF]

open access: yesBiom J
ABSTRACT Often probabilities of nonstandard time‐to‐event endpoints are of interest, which are more complex than overall survival. One such probability is chronic graft‐versus‐host disease (GvHD‐) and relapse‐free survival, the probability of being alive, in remission, and not suffering from chronic GvHD after stem cell transplantation, with chronic ...
Vilsmeier J   +3 more
europepmc   +2 more sources

Universal quantum computation with unlabeled qubits

open access: yes, 2006
We show that an n-th root of the Walsh-Hadamard transform (obtained from the Hadamard gate and a cyclic permutation of the qubits), together with two diagonal matrices, namely a local qubit-flip (for a fixed but arbitrary qubit) and a non-local phase ...
Aharonov D   +8 more
core   +1 more source

Systematic errors in Hadamard transform optics [PDF]

open access: yesApplied Optics, 1978
This paper analyzes the systematic errors in Hadamard transform optical instruments caused by moving masks, incorrect mask alignment, faulty mask fabrication, missing data, diffraction, etc. and describes techniques for reducing or eliminating these errors.
N J, Sloane, M, Harwit, M H, Tai
openaire   +2 more sources

Contribution of Using Hadamard Fractional Integral Operator via Mellin Integral Transform for Solving Certain Fractional Kinetic Matrix Equations

open access: yesFractal and Fractional, 2022
Recently, the importance of fractional differential equations in the field of applied science has gained more attention not only in mathematics but also in electrodynamics, control systems, economic, physics, geophysics and hydrodynamics.
M. Abdalla, M. Akel
semanticscholar   +1 more source

Enhancing Atomic‐Resolution in Electron Microscopy: A Deep Learning Denoiser Operating in the Frequency Domain

open access: yesAdvanced Intelligent Systems, EarlyView.
The newly developed AI‐automated Fast Fourier Transform denoising algorithm surpasses conventional real‐space methods by revealing even light atoms otherwise hidden in noisy backgrounds. Atomic resolution electron microscopy has become an essential tool for many scientific fields, when direct visualization of atomic arrangements and defects is needed ...
Ivan Pinto‐Huguet   +8 more
wiley   +1 more source

Modeling and parameter estimation for fractional large‐scale interconnected Hammerstein systems

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper addresses the challenge of modeling and identifying large‐scale interconnected systems exhibiting memory effects, hereditary properties, and non‐local interactions. We propose a fractional‐order extension of the Hammerstein architecture that incorporates Grünwald–Letnikov operators to capture complex dynamics through multiple ...
Mourad Elloumi   +2 more
wiley   +1 more source

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