Results 61 to 70 of about 33,602,714 (380)

Scale-invariant Mexican Hat wavelet descriptor for non-rigid shape similarity measurement

Scientific Reports, 2023
The Mexican Hat wavelet (MHW) is strictly derived from the heat kernel by taking its negative first-order derivative with respect to time t. As a solution to the heat equation that the heat kernel has a clear initial condition, the Laplace–Beltrami ...
Yuhuan Yan, Mingquan Zhou, Dan Zhang, Shengling Geng   +3 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Adversarial Robust Modulation Recognition Guided by Attention Mechanisms

IEEE Open Journal of Signal Processing
Deep neural networks have demonstrated considerable effectiveness in recognizing complex communications signals through their applications in the tasks of automatic modulation recognition.
Quanhai Zhan, Xiongwei Zhang, Meng Sun, Lei Song, Zhenji Zhou   +4 more
doaj   +1 more source

Information Processing Models: Benefits and Limitations [PDF]

, 2003
This paper looks at the three main information processing models from the point of view of researchers in confidential human factors databases. It explores conceptual problems with two of these information processing models, and goes on to explore ...
Davies, Professor John, Ross, Dr Alastair, Wallace, Dr Brendan   +2 more
core  

Quantum information processing with trapped ions

, 2003
Experiments directed towards the development of a quantum computer based on trapped atomic ions are described briefly. We discuss the implementation of single qubit operations and gates between qubits.
Barrett, M., Britton, J., Chiaverini, J., DeMarco, B., Itano, W. M., Jelenkovi'c, B., Langer, C., Leibfried, D., Meyer, V., Rosenband, T., Schätz, T., Wineland, D. J.   +11 more
core   +1 more source

Market Discipline, Information Processing, and Corporate Governance [PDF]

, 2005
The paper reviews and assesses our understanding of the notion of “market discipline” in corporate governance. It questions the wholesale appeal to this notion in policy discussion, which fails to provide an account of the underlying mechanisms in terms ...
Hellwig, Martin
core   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

CSL-SFNet for Cooperative Spectrum Sensing in Cognitive Satellite Network with GEO and LEO Satellites

IET Signal Processing
In a cognitive satellite network (CSN) with GEO and LEO satellites, there is a large propagation losses between the sensing satellite and the ground station.
Kai Yang, Shengbo Hu, Xin Zhang, Tingting Yan, Manqin Zhu   +4 more
doaj   +1 more source

Attention-Based LSTM Algorithm for Audio Replay Detection in Noisy Environments

Applied Sciences, 2019
Even though audio replay detection has improved in recent years, its performance is known to severely deteriorate with the existence of strong background noises.
Jiakang Li, Xiongwei Zhang, Meng Sun, Xia Zou, Changyan Zheng   +4 more
doaj   +1 more source

Quantum hierarchic models for information processing

, 2012
Both classical and quantum computations operate with the registers of bits. At nanometer scale the quantum fluctuations at the position of a given bit, say, a quantum dot, not only lead to the decoherence of quantum state of this bit, but also affect the
Brink D. M., Burt P., MIKHAIL V. ALTAISKY, NATALIA E. KAPUTKINA, Nielsen M. A., Stolze J.   +5 more
core   +1 more source