Results 111 to 120 of about 472,688 (313)
The multiresolution Fourier transform : a general purpose tool for image analysis [PDF]
The extraction of meaningful features from an image forms an important area of image analysis. It enables the task of understanding visual information to be implemented in a coherent and well defined manner.
Calway, Andrew David
core
Advanced Functional Materials, EarlyView.A quantum dot–tellurium thin‐film photodetector autonomously discriminates visible and infrared wavelengths through polarity‐reversible photoresponses. Engineered carrier separation and gain modulation enable filter‐free multispectral sensing within a single‐device architecture.
Yong Min Lee +7 more
wiley +1 more source
Critique of fourier transform infrared microspectroscopy applications to prostate pathology diagnosis [PDF]
, 2010 Prostate cancer is a biologically heterogenous disease with considerable variation in clinical aggressiveness. Gleason grade, the universally accepted method for classification of prostate cancer, is subjective and gives limited predictive information
Aning, Jonathan
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Evaluation of Fourier transform estimation schemes of multidimensional signals using random sampling
, 2012 We consider the estimation of the Fourier transform of multidimensional deterministic signals from a finite number of random samples. First, we consider a scenario where the sampling instants are taken from a continuous-time observation window.
Al-Ani, M., Tarczynski, A.
core +1 more source
On the Fourier transform of the symmetric decreasing rearrangements [PDF]
, 2011 Inspired by work of Montgomery on Fourier series and Donoho-Strak in signal processing, we investigate two families of rearrangement inequalities for the Fourier transform.
Jaming, Philippe
core +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
2 kWatt Harmonic Analyzer Prototype Using Discrete Fourier Transform Method
, 2011 We knew that there are so many power harmonic analyzer in the market. Much of them are from well known company and commercialize that bring the engineer found it easily.
Hidayat, Wahyu +2 more
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Advanced Functional Materials, EarlyView.An effective strategy is developed to overcome the medium temperatures wear resistance degradation in refractory multi‐principal element alloys. By utilizing chemical short‐range ordering to trigger oxygen‐induced amorphization, a composite oxide structure is formed, which combines high hardness with robust stiffness.
Xuhui Pei +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman +6 more
wiley +1 more source