Results 21 to 30 of about 1,205,866 (291)

New Approach of High Sensitivity Techniques Using Collective Detection Method with Multiple GNSS Receivers

Sensors, 2018
The Collective Detection (CD) technique is a promising approach to meet the requirements for signal acquisition in GNSS-harsh environments. The CD approach has been proposed because of its potential to operate as both a direct positioning method and a ...
Maherizo Andrianarison, René Landry
doaj   +1 more source

A Fault Feature Extraction Method Based on Second-Order Coupled Step-Varying Stochastic Resonance for Rolling Bearings

Applied Sciences, 2020
In mechanical equipment, rolling bearings analyze and monitor their fault based on their vibration signals. Vibration signals obtained are usually weak because the machine works in a noisy background that makes it very difficult to extract its feature ...
Lu Lu, Yu Yuan, Chen Chen, Wu Deng
doaj   +1 more source

Identifying entrepreneurial discovery processes with weak and strong technology signals: a text mining approach [version 2; peer review: 2 approved]

Open Research Europe, 2022
This study aims to propose methods for identifying entrepreneurial discovery processes with weak/strong signals of technological changes and incorporating technology foresight in the design and planning of the Smart Specialization Strategy (S3). For this
Levan Bzhalava, Jari Kaivo-oja, Sohaib S. Hassan, Wolfgang Dieter Gerstlberger   +3 more
doaj   +1 more source

Dibaryons with Strangeness: their Weak Nonleptonic Decay using SU(3) Symmetry and how to find them in Relativistic Heavy-Ion Collisions [PDF]

, 2000
Weak SU(3) symmetry is successfully applied to the weak hadronic decay amplitudes of octet hyperons. Weak nonmesonic and mesonic decays of various dibaryons with strangeness, their dominant decay modes, and lifetimes are calculated.
A. Jacholkowski, A. L. Yaouanc, A. Parreno, A. R. Bodmer, B. Monreal, B. Schwesinger, C. Greiner, C. Greiner, D. Anchishkin, E. P. Gilson, F. Wang, G. Appelquist, H. Caines, H. J. Crawford, H. Sorge, H. Sorge, H. van Hecke, Heinz Sorge, J. Belz, J. F. Donoghue, J. F. Donoghue, J. L. Nagle, J. P. Coffin, J. Schaffner, J. Schaffner, J. Schaffner-Bielich, Jürgen Schaffner-Bielich, L. E. Finch, L. P. Csernai, M. Gronau, M. I. Krivoruchenko, R. Bellwied, R. E. Marshak, R. H. Dalitz, R. L. Jaffe, R. Mattiello, R. Mattiello, Raffaele Mattiello, S. Panitkin, T. A. Armstrong, T. Goldman, T. Goldman, V. G. J. Stoks   +42 more
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The Recovery of Weak Impulsive Signals Based on Stochastic Resonance and Moving Least Squares Fitting [PDF]

, 2014
In this paper a stochastic resonance (SR)-based method for recovering weak impulsive signals is developed for quantitative diagnosis of faults in rotating machinery.
Fengshou Gu, Guanghua Xu, He, He, Huang, Jeon, Jiang, Kuosheng Jiang, Lei, Li, Li, Lin Liang, Lou, Nikolaou, Seo, Somasundaram, Tangfei Tao, Wang, Yu, Zhou   +19 more
core   +2 more sources

Adaptive Stochastic Resonance Method Based on Quantum Genetic Algorithm and its Application in Dynamic Characteristic Identification of Bridge GNSS Monitoring Data

IEEE Access, 2020
Bridge dynamic monitoring based on GNSS has become an important means of monitoring bridge structure. GNSS dynamic monitoring signals are often overwhelmed by strong noises and multipath errors.
Xinpeng Wang, Shengxiang Huang, Guanqing Li, Wen Zhang, Chenfeng Li, Yarong Wang   +5 more
doaj   +1 more source

Weak Fault Diagnosis Method of Rolling Bearings Based on Variational Mode Decomposition and a Double-Coupled Duffing Oscillator

Applied Sciences, 2023
Aiming at the problems of the low detection accuracy and difficult identification of the early weak fault signals of rolling bearings, this paper proposes a method for detecting the early weak fault signals of rolling bearings based on a double-coupled ...
Shijie Shan, Jianming Zheng, Kai Wang, Ting Chen, Yuhua Shi   +4 more
doaj   +1 more source

Supporting the Absorbent National Rural Development Planning by Scenarios

European Countryside, 2017
The practice of Hungarian rural development planning shows the lack of future orientation. The time horizon of planning is short-term, the strategic way of thinking beyond 7–10 years long period is missing or it has great deficiencies.
Korompai Attila, Szabó Mátyás, Nováky Erzsébet   +2 more
doaj   +1 more source

Information Diagnostic Support of Enterprise Under the Conditions of Uncertainty

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017
The dynamics and uncertainty of business environment greatly complicate the decision‑making processes for the company’s executives and managers. That’s especially important if they do not possess high‑quality and reliable information database on the ...
Olha Melnyk, Włodzimierz Sroka, Marta Adamiv, Yurii Shpak   +3 more
doaj   +1 more source

Doppler-Free Spectroscopy of Weak Transitions: An Analytical Model Applied to Formaldehyde [PDF]

, 2007
Experimental observation of Doppler-free signals for weak transitions can be greatly facilitated by an estimate for their expected amplitudes. We derive an analytical model which allows the Doppler-free amplitude to be estimated for small Doppler-free ...
A. Szöke, C. Moore, D.J. Clouthier, F.D. Pope, G. Herzberg, G. Rempe, G.C. Bjorklund, G.C. Bjorklund, G.H. Dieke, M. Motsch, M. Zeppenfeld, P.R. Berman, P.W.H. Pinkse, R.A. McFarlane, S.A. Rangwala, S.N. Jabr, T. Rieger, W.E. Lamb, W.L. Meerts   +18 more
core   +1 more source