Faster convergence is always sought in many applications. Designing fixed-time control has recently gained much attention since, for this type of control structure, the convergence time of the states does not depend on initial conditions, unlike other control methods providing faster convergence. This paper proposes a new distributed algorithm for second-order consensus in multiagent systems by using a full-order fixed-time convergent sliding surface. The stability analysis is performed using the Lyapunov function and bi-homogenous property. Moreover, the proposed control is smooth and free from any singularity. The robustness of the proposed scheme is verified both in the presence of Lipschitz disturbances and uncertainties in the network. The proposed method is compared with a state-of-the-art method to show the effectiveness.
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http://dx.doi.org/10.1109/TCYB.2018.2875362 | DOI Listing |
Asian Nurs Res (Korean Soc Nurs Sci)
December 2024
Graduate School of Public Health, Ajou University, Suwon, Republic of Korea. Electronic address:
Purpose: This review aimed to evaluate the internal structure (structural validity, internal consistency, and measurement invariance) of the Patient Health Questionnire-9 (PHQ-9), which is one of the most widely used self-administered instruments for assessing and screening depression.
Methods: The updated COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) methodology for a systematic review of self-reported instruments was used. PubMed, Embase, CINAHL, PsycINFO, and Cochrane Library databases were searched from their inception up to February 28, 2023.
ISA Trans
December 2024
The Institute of Advanced Technology, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210003, People's Republic of China. Electronic address:
In this paper, we consider the finite-time consensus problem for second-order multi-agent systems with pinning control. Unlike the existing finite-time consensus algorithms for second-order multi-agent systems in which all agents' velocities and positions are assumed to have common communication weights and nonlinear couplings, we allow communication weights, nonlinear couplings and the feedback gains to be inconsistent for each agent's velocity and position. A flexible continuous protocol is designed to solve the finite-time consensus problem.
View Article and Find Full Text PDFBMC Musculoskelet Disord
November 2024
Department of Physiotherapy, Research Group "Area of Physiotherapy" CTS-305, University of Seville, Seville, 41009, Spain.
Nature
October 2024
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.
Reputations are critical to human societies, as individuals are treated differently based on their social standing. For instance, those who garner a good reputation by helping others are more likely to be rewarded by third parties. Achieving widespread cooperation in this way requires that reputations accurately reflect behaviour and that individuals agree about each other's standings.
View Article and Find Full Text PDFThe ever-present cyber-attacks have posed a significant challenge to consensus of multiagent systems (MASs), due to their capability of compromising agents. These threats underscore the critical need to design control strategies that can endow MASs with resilience. In this article, we address resilient consensus problems for first- and second-order discrete-time MASs, considering the presence of malicious agents, a dynamic leader, and communication delay.
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