Results 111 to 120 of about 73,711 (304)

Signal Detection for QPSK Based Cognitive Radio Systems using Support Vector Machines [PDF]

open access: yesRadioengineering, 2015
Cognitive radio based network enables opportunistic dynamic spectrum access by sensing, adopting and utilizing the unused portion of licensed spectrum bands.
M. T. Mushtaq   +3 more
doaj  

The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley   +1 more source

Cost Pass‐Through in Crisis: Evidence From the German Malt‐Beer Supply Chain

open access: yesAgribusiness, EarlyView.
Abstract Global agri‐food supply chains are increasingly exposed to geopolitical shocks, climate volatility, and market consolidation, factors that disrupt traditional price relationships and reshape market power dynamics. Nowhere is this more visible than in the brewing sector, where agricultural raw materials meet complex industrial processing and ...
Nikolas Bublik, Lukáš Čechura
wiley   +1 more source

Development and Study of Demodulation Techniques for Frequency Manipulated Signals

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2017
The goal of our research is development and study of different demodulation techniques for a frequency shift keyed signals. The signal under study is a frequency-shift keyed (FSK) signal when the information signal regulates the carrier frequency.
D. I. Kaplun   +7 more
doaj  

Yarn-Dyed Fabric Defect Detection Based On Autocorrelation Function And GLCM

open access: yesAUTEX Research Journal, 2015
In this study, a new detection algorithm for yarn-dyed fabric defect based on autocorrelation function and grey level co-occurrence matrix (GLCM) is put forward.
Zhu Dandan   +3 more
doaj   +1 more source

Empirical autocorrelation function for the whole dataset: 1899–2012.

open access: yes, 2016
Empirical autocorrelation function for the whole dataset: 1899–2012.
Mihael Brenčič (2627008)
core   +1 more source

Price Transmission and Leadership in the Global Poultry Market: Results From Parametric and Nonparametric Approaches

open access: yesAgribusiness, EarlyView.
ABSTRACT Brazil and the United States account for more than 40% of global poultry exports, with China and South Korea among their major destination markets. This study examines price transmission and market linkages between Brazil and the United States using monthly poultry export price data from January 1990 to December 2024. It also assesses which of
Khondoker Abdul Mottaleb   +2 more
wiley   +1 more source

Characterization of a quantum phase transition in Dirac systems by means of the wave-packet dynamics

open access: yesAIP Advances, 2012
We study the signatures of phase transitions in the time evolution of wave-packets by analyzing two simple model systems: a graphene quantum dot model in a magnetic field and a Dirac oscillator in a magnetic field.
E. Romera, J. J. Torres
doaj   +1 more source

Modeling of the Autocorrelation Function - a New Method . . .

open access: yes, 1998
The paper presents a new method for estimation of maximum frequency (fmax ) in the Transcranial Doppler (TCD) signal, using the autocorrelation function of this signal.
Ul. Dworkowa   +4 more
core  

Autocorrelation function values of HFRS incidence before seasonal difference.

open access: yes, 2018
Autocorrelation function values of HFRS incidence before seasonal difference.
Liang Ge (541067)   +7 more
core   +1 more source

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