Results 21 to 30 of about 193,886 (292)
Constructing Chaotic System With Multiple Coexisting Attractors
IEEE Access, 2019 This paper reports the method for constructing multiple coexisting attractors from a chaotic system. First, a new four-dimensional chaotic system with only one equilibrium and two coexisting strange attractors is established.
Qiang Lai +4 more
doaj +1 more source
Sensors, 2022 The localization problem of nodes in wireless sensor networks is often the focus of many researches. This paper proposes an opposition-based learning and parallel strategies Artificial Gorilla Troop Optimizer (OPGTO) for reducing the localization error ...
Qingwei Liang +4 more
doaj +1 more source
0.3-V Voltage-Mode Versatile First-Order Analog Filter Using Multiple-Input DDTAs
Sensors, 2023 This paper presents a versatile first-order analog filter using differential difference transconductance amplifiers (DDTAs). The DDTA employs the bulk-driven (BD) multiple-input MOS transistors technique (MI-MOST) operating in the subthreshold region ...
Montree Kumngern +3 more
doaj +1 more source
Stable DNA Sequence Over Close-Ending and Pairing Sequences Constraint
Frontiers in Genetics, 2021 DNA computing is a new method based on molecular biotechnology to solve complex problems. The design of DNA sequences is a multi-objective optimization problem in DNA computing, whose objective is to obtain optimized sequences that satisfy multiple ...
Xue Li, Ziqi Wei, Bin Wang, Tao Song
doaj +1 more source
IEEE Access, 2023 The mapping of damping ratios and damping factors by Sine-Cosine Algorithm (SCA) is significant in the analysis of low frequency oscillations generated in an integrated network having multiple conventional and renewable energy sources.
S. Grace Sadhana, S. Kumaravel, S. Ashok
doaj +1 more source
Brazilian Journal of Medical and Biological Research, 2005 An assumption commonly made in the study of visual perception is that the lower the contrast threshold for a given stimulus, the more sensitive and selective will be the mechanism that processes it.
M.L.B. Simas +2 more
doaj +1 more source
UAV Cluster Task Assignment Algorithm Based on Improved Artificial Gorilla Troops Optimizer
IEEE Access, 2023 Efficient task execution and optimized combat effectiveness can be achieved when a cluster of Unmanned Aerial Vehicles (UAVs) work collaboratively by assigning various tasks to each UAV reasonably.
Ran Zhang +3 more
doaj +1 more source
Evapotranspiration Prediction Method Based on K-Means Clustering and QPSO-MKELM Model
Applied SciencesThis study aims to improve the prediction accuracy of reference evapotranspiration under limited meteorological factors. Based on the commonly recommended PSO-ELM model for ET0 prediction and addressing its limitations, an improved QPSO algorithm and ...
Chuansheng Zhang, Minglai Yang
doaj +1 more source
IEEE Access, 2023 The optimal performance of a wireless mesh network (WMN) can be greatly improved by strategically placing wireless mesh routers. As a result, it is crucial to optimally locate the WMN routers for better coverage and connectivity.
Hakim Q. A. Abdulrab +6 more
doaj +1 more source
Log-sine evaluations of Mahler measures
, 2010 We provide evaluations of several recently studied higher and multiple Mahler measures using log-sine integrals. This is complemented with an analysis of generating functions and identities for log-sine integrals which allows the evaluations to be ...
Borwein, Jonathan M., Straub, Armin
core +3 more sources