Results 151 to 160 of about 527,013 (335)

A Low-Cost Implementation of a Potato (<i>Solanum tuberosum</i> L.) Moisture Sensor Based on the Howland Current Source Through Discrete Fourier Transform. [PDF]

Sensors (Basel)
Martinez-Ramirez LG, Sierra-Hernandez JM, Fitch-Vargas PR, Gómez-Salazar JA, Bojórquez-Sánchez C, Fernandez-Jaramillo AA.   +5 more
europepmc   +1 more source

On computing the Discrete Fourier Transform.

Proceedings of the National Academy of Sciences of the United States of America, 1976
S. Winograd
semanticscholar   +1 more source

Non‐Volatile Phase Modulation with Ultralow Energy Consumption Enabled by 2D Ferroelectric/TMD Heterostructures

Advanced Science, EarlyView.
We demonstrate a hybrid WS2/CuInP2S6/graphene heterostructure integrated on a silicon nitride microring resonator for non‐volatile optical phase modulation with ultra‐low energy consumption and low insertion loss. While CIPS alone does not provide efficient optical index modulation, the engineered proposed device structure converts ferroelctric domain ...
Lalit Singh, Shi Guo, Yuhui Yang, Sholehin Juperi, Rui Yu, Xiangxin Gong, Jeremy Leong, Sung‐Gyu Lee, Qingyun Wu, Lay Kee Ang, Sang Hoon Chae   +10 more
wiley   +1 more source

Robust hashing for image authentication using quaternion discrete Fourier transform and log-polar transform

Digit. Signal Process., 2015
Junlin Ouyang, G. Coatrieux, H. Shu
semanticscholar   +1 more source

Integrated Ultrasound Device for Precision Bladder Volume Monitoring via Acoustic Focusing and Machine Learning

Advanced Science, EarlyView.
We present a conformable wearable ultrasound patch for noninvasive bladder volume monitoring. A flexible PZT array combined with a concave acoustic lens concentrates acoustic energy and improves depth selectivity through the anterior pelvic wall.
Long Long Cao, Feng Wen Wang, Jingwei Xue, Fulei Liu, Ming Liang Jin   +4 more
wiley   +1 more source

Metalens Array for Complex‐Valued Optical Discrete Fourier Transform [PDF]

Randy Stefan Tanuwijaya, So Lap, Wai Chun Wong, Tailin An, Wing Yim Tam, Jensen Li, Jensen Li   +6 more
openalex   +1 more source

Low-Power and Optimized VLSI Implementation of Compact Recursive Discrete Fourier Transform (RDFT) Processor for the Computations of DFT and Inverse Modified Cosine Transform (IMDCT) in a Digital Radio Mondiale (DRM) and DRM+ Receiver [PDF]

, 2013
Shin-Chi Lai, Yueh-Shu Lee, Sheau-Fang Lei   +2 more
openalex   +1 more source

From Design to Prototype: High‐Sensitivity Tri‐Mode Operation Photodetectors Based on 1T‐2H Hybrid MoS2

Advanced Science, EarlyView.
This work demonstrates a phase‐engineered MoS2 photodetector that dynamically switches among photocapacitive (PCC), photovoltaic (PV), and photoconductive (PC) modes. By transforming the traditionally parasitic capacitance into an active signal source, the device achieves self‐powered, high‐sensitivity detection with a fast response of 19.2 ms, and a ...
Xinyu Li, Daxiu Tang, Jiaxin Guo, Xiao Zhang, Sihan Liu, Yaojun Yu, Qianqian Cheng, Chengwei Gao, Xiaoning Guan, Pengfei Lu, Fei Zhuge, Ying Xie, Changgui Lin, Xiang Shen, Haohai Yu, Huaijin Zhang, Jiyang Wang   +16 more
wiley   +1 more source

On the Correlation Matrix of the Discrete Fourier Transform and the Fast Solution of Large Toeplitz Systems for Long-Memory Time Series

, 2006
Willa W. Chen, Clifford M. Hurvich, Yi Lü   +2 more
openalex   +2 more sources

Application of the Weil representation: diagonalization of the discrete Fourier transform [PDF]

, 2009
Shamgar Gurevich, Ronny Hadani
openalex   +1 more source