Results 121 to 130 of about 52,376 (308)

Generalized Sampling Theory in the Quaternion Domain: A Fractional Fourier Approach

Fractal and Fractional
The field of quaternions has made a substantial impact on signal processing research, with numerous studies exploring their applications. Building on this foundation, this article extends the study of sampling theory using the quaternion fractional ...
Muhammad Adnan Samad, Yuanqing Xia, Nader Al-Rashidi, Saima Siddiqui, Muhammad Younus Bhat, Huda M. Alshanbari   +5 more
doaj   +1 more source

Compensation of Rotary Encoders Using Fourier Expansion-Back Propagation Neural Network Optimized by Genetic Algorithm. [PDF]

Sensors (Basel), 2020
Jia HK, Yu LD, Jiang YZ, Zhao HN, Cao JM.   +4 more
europepmc   +1 more source

Image feature analysis using the Multiresolution Fourier Transform [PDF]

The problem of identifying boundary contours or line structures is widely recognised as an important component in many applications of image analysis and computer vision.
Davies, Andrew Richard
core  

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source

Fourier Expansions with Respect to the Rayleigh System

Journal of Approximation Theory, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Fourier-Transform Atomic Force Microscope-Based Photothermal Infrared Spectroscopy with Broadband Source

The mechanical detection of photothermal expansion from infrared (IR) absorption with an atomic force microscope (AFM) bypasses Abbe’s diffraction limit, forming the chemical imaging technique of AFM-IR.
Qing Xie (104232), Xiaoji G. Xu (1715950)   +1 more
core   +1 more source

Convergence Characteristics of the Cumulant Expansion for Fourier Path Integrals

, 2010
The cumulant representation of the Fourier path integral method is examined to determine the asymptotic convergence characteristics of the imaginary-time density matrix with respect to the number of path variables N included.
Sharif D. Kunikeev, Freeman, David L., J. D. Doll, Kunikeev, Sharif D., David L. Freeman, Doll, J. D.   +5 more
core   +1 more source

Application of Ibuprofen Sodium Dihydrate for Thermochemical Energy Storage

Advanced Functional Materials, EarlyView.
Ibuprofen sodium dihydrate is introduced as a durable organic salt hydrate for low‐temperature thermochemical energy storage, operating within 60°C–110°C with high energy density. At the material level, it delivers ∼99.9% cycling efficiency over 150 cycles without deliquescence, enabled by a dual energy‐storage mechanism coupling dehydration and phase ...
Kavin Chakravarthy Thangaraj, Hannah F. Chang, Shannon J. Lee, Mark E. Bowden, J. David Bazak, Vaithiyalingam Shutthanandan, Venkateshkumar Prabhakaran, Xiao Zhang, David M. Reed, Ajay S. Karakoti, Vijayakumar Murugesan   +10 more
wiley   +1 more source

Numerical Investigation of the Cumulant Expansion for Fourier Path Integrals

, 2012
Recent developments associated with the cumulant expansion of the Fourier path integral Monte Carlo method are illustrated numerically using a simple one-dimensional model of a quantum fluid.
Jimmie D. Doll, Sharif Kunikeev, Freeman, D. L., Plattner, Nuria, Freeman, David L., Plattner, N., Kunikeev, Sharif, Doll, Jimmie D., David L. Freeman, Doll, J. D., Nuria Plattner, Kunikeev, S.   +11 more
core   +1 more source