Results 231 to 240 of about 2,157,914 (307)
Some of the next articles are maybe not open access.
IEEE Sensors Journal, 2021
In this paper, we propose a computationally efficient deep learning framework to address the issue of sensitivity drift compensation for chemical sensors.
Diaa Badawi +3 more
semanticscholar +1 more source
In this paper, we propose a computationally efficient deep learning framework to address the issue of sensitivity drift compensation for chemical sensors.
Diaa Badawi +3 more
semanticscholar +1 more source
Design and implementation of the Walsh-Hadamard transform on a ternary optical computer.
Applied Optics, 2021Walsh-Hadamard is a commonly used mathematical transformation, a mathematical method for spectrum analysis in the real number domain, which has been widely used in many fields such as digital signal processing, spectral modulation, and image processing ...
Wang Zhehe, Shen Yunfu
semanticscholar +1 more source
HPLC-Detector Based on Hadamard-Transform Fluorescence Excitation-Emission-Matrix Spectroscopy.
Analytical Chemistry, 2021We present a new rapid-acquisition HPLC detector based on a Hadamard-transform (HT) excitation-emission-matrix (EEM) fluorescence spectrometer allowing the acquisition of two-dimensional spectra at a rate faster than 6 spectra per second (
Travis Ferguson +3 more
semanticscholar +1 more source
Applied Optics, 1981
In many fields (e.g., spectroscopy, imaging spectroscopy, photoacoustic imaging, coded aperture imaging) binary bit patterns known as m sequences are used to encode (by multiplexing) a series of measurements in order to obtain a larger throughput. The observed measurements must be decoded to obtain the desired spectrum (or image in the case of coded ...
E E, Fenimore, G S, Weston
openaire +2 more sources
In many fields (e.g., spectroscopy, imaging spectroscopy, photoacoustic imaging, coded aperture imaging) binary bit patterns known as m sequences are used to encode (by multiplexing) a series of measurements in order to obtain a larger throughput. The observed measurements must be decoded to obtain the desired spectrum (or image in the case of coded ...
E E, Fenimore, G S, Weston
openaire +2 more sources
Application of Hadamard transformation to MEKC
ELECTROPHORESIS, 2007AbstractThe Hadamard transform (HT) technique, which permits the S/N in CE to be improved, was applied to MEKC. Multiple sample injection of fluorescent analytes according to a Hadamard code sequence was performed using an optically gated sample injection technique, in which a sample plug was produced based on photodegradation by irradiation with an ...
Kazuki, Hata +2 more
openaire +2 more sources
Hadamard Transform Capillary Electrophoresis
Analytical Chemistry, 1999This paper reports the first demonstration of a multiplex sample injection technique in capillary electrophoresis. The sample was injected into a capillary (effective length, 4 cm) as a pseudorandam Hadamard sequence by a photodegradation technique using a high-power gating laser, and the fluorescence signal, which was measured using a probe excitation
T, Kaneta, Y, Yamaguchi, T, Imasaka
openaire +2 more sources
Sequencing the Hadamard transform
IEEE Transactions on Audio and Electroacoustics, 1973The fast computational algorithm based on matrix Kronecker products yields the Hadamard transform in a scrambled order of sequencies. A computational algorithm is developed to arrange the transform in an increasing order of sequencies. The unscrambling is achieved by exchanges of components and requires no additional storage.
B. Bhagavan, R. Polge
openaire +1 more source
On the Use of Fast Hadamard Transforms for Spectrum Recovery in Hadamard Transform Spectroscopy
Applied Spectroscopy, 1992The spectrum-recovery step in Hadamard transform spectroscopy is commonly implemented with a fast Hadamard transform (FHT). When the Hadamard or simplex matrix corresponding to the mask does not have the same ordering as the Hadamard matrix corresponding to the FHT, a modification is required. When the two Hadamard matrices are in the same equivalence
B. K. Harms, J. B. Park, S. A. Dyer
openaire +1 more source
Fourier Transform vs Hadamard Transform Spectroscopy
Applied Optics, 1973Recent articles have claimed a significant S/N advantage of Hadamard transform spectroscopy over Fourier transform spectroscopy. The scanty published data does not support this assertion, and the possibility that the claim is valid in theory is examined.
T, Hirschfeld, G, Wyntjes
openaire +2 more sources
Nondestructive Testing and Evaluation
Steel wire rope usually works in harsh environments, making it prone to damage during frequent use. Magnetic flux leakage testing is an important way of non-destructive testing, preventing some major accidents of hoist equipment by identifying the damage
Shengping Huang +5 more
semanticscholar +1 more source
Steel wire rope usually works in harsh environments, making it prone to damage during frequent use. Magnetic flux leakage testing is an important way of non-destructive testing, preventing some major accidents of hoist equipment by identifying the damage
Shengping Huang +5 more
semanticscholar +1 more source