Results 21 to 30 of about 1,547,985 (301)

Spatiotemporal Variation of the Meteorological and Groundwater Droughts in Central Taiwan

open access: yesFrontiers in Water, 2021
In recent years, Taiwan has been facing severe water shortages due to extreme drought. In addition, changes in rainfall patterns have resulted in an increasingly notable drought phenomenon, which affects the management and utilization of water resources.
Hsin-Fu Yeh
doaj   +1 more source

Cross-correlation cosmography with HI intensity mapping [PDF]

open access: yes, 2015
The cross-correlation of a foreground density field with two different background convergence fields can be used to measure cosmographic distance ratios and constrain dark energy parameters.
Bacon, David   +2 more
core   +3 more sources

Sand-Dust Image Enhancement Using Chromatic Variance Consistency and Gamma Correction-Based Dehazing

open access: yesSensors, 2022
In sand-dust environments, the low quality of images captured outdoors adversely affects many remote-based image processing and computer vision systems, because of severe color casts, low contrast, and poor visibility of sand-dust images.
Jong-Ju Jeon, Tae-Hee Park, Il-Kyu Eom
doaj   +1 more source

Kernel Cross-Correlator

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2018
Cross-correlator plays a significant role in many visual perception tasks, such as object detection and tracking. Beyond the linear cross-correlator, this paper proposes a kernel cross-correlator (KCC) that breaks traditional limitations.
Chen Wang 0033   +3 more
openaire   +2 more sources

Development of MEMS Airflow Volumetric Flow Sensing System with Single Piezoelectric Micromachined Ultrasonic Transducer (PMUT) Array

open access: yesMicromachines, 2022
Compared to conventional ultrasonic flowmeters using multiple transducers, this paper reports, for the first time, an airflow volumetric flowmeter using a signal PMUT array to measure the flow rate in a rectangular pipe.
Xueying Xiu   +4 more
doaj   +1 more source

Comparison of Feature-List Cross-Correlation Algorithms with Common Cross-Correlation Algorithms [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ralph Maschotta   +2 more
openaire   +3 more sources

Determination of the Optimum Wavelet Basis Function for Indonesian Vowel Voice Recognition

open access: yesJurnal Elektronika dan Telekomunikasi, 2017
Nowadays, wavelet has been widely applied in extracting features of the signal for automatic speech recognition system. Wavelets have many families that are determined by their mother function and order.
Syahroni Hidayat   +2 more
doaj   +1 more source

Cross-Correlation Studies with CMB Polarization Maps [PDF]

open access: yes, 2004
The free-electron population during the reionized epoch rescatters CMB temperature quadrupole and generates a now well-known polarization signal at large angular scales.
A. Cooray   +34 more
core   +2 more sources

Fluid-Structure Interaction of Flexible Whisker-Type Beams and Its Implications for Flow Sensing by Pair-Wise Correlation

open access: yesFluids, 2021
(1) Background: Sensing of critical events or flow signatures in nature often presents itself as a coupled interaction between a fluid and arrays of slender flexible beams, such a wind-hairs or whiskers.
Raphael Glick   +2 more
doaj   +1 more source

The Determinants of the U.S. Consumer Sentiment: Linear and Nonlinear Models

open access: yesInternational Journal of Financial Studies, 2020
We examined the determinants of the U.S. consumer sentiment by applying linear and nonlinear models. The data are monthly from 2009 to 2019, covering a large set of financial and nonfinancial variables related to the stock market, personal income ...
Marwane El Alaoui   +2 more
doaj   +1 more source

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