Currently, sustainable business performance has become the global requirement due to recent economic disaster, and green measures have been considered leading solution for it. This situation gained attention of literature regulators; thus, present study examined transformational leadership (GTL), human resource management (HRM), innovation on manufacturing organizations in China. The moderating impact perceived organizational support among association GTL, HRM, innovation, China was also...

This paper is concerned with data-driven distributed optimal consensus control for unknown multiagent systems (MASs) input delays. The input-delayed MAS model first converted into a delay-free form using reduction method. By establishing an equivalent relationship on the predesigned performance indices of two MASs, can be fully transformed to that delayfree MAS. Based coupled Hamilton-Jacobi equations and Bellman's optimality principle, policies are derived Then policy iteration algorithm...

This paper addresses the problem of distributed optimal consensus control for a continuous-time heterogeneous linear multiagent system subject to time varying input delays. First, by discretization and model transformation, input-delayed is converted into discrete-time delay-free system. Two delicate performance index functions are defined these two systems. It shown that equivalent can be cast Second, virtue Hamilton-Jacobi-Bellman (HJB) equations, an policy each agent designed based on...

This article considers integral sliding-mode control (ISMC) for multiagent systems with matched disturbances through adaptive dynamic programming (ADP) method. A distributed disturbance observer (DDO) is designed each agent to generate the estimation. Using estimation, an ISMC scheme proposed reject input and obtain equivalent local neighbor consensus dynamics. Then, a discount performance function agent, ADP technique utilized address optimal dynamics online. Based on gradient descent...

The large-scale and engineering preparation of NiPd powder with an excellent structure is crucial for promoting the development catalytic applications utilization hydrogen energy. In this study, micro-nano dual-size alloy a flake-like microstructure was synthesized using simple efficient high-energy ball milling method. Micro-structural analysis performed on samples at various stages to investigate atomic migration refinement mechanisms during process. elemental distribution different...

A 1-D wideband phased array of the rectangular ring dielectric resonator antenna (RRDRA) is presented for millimeter-wave (mmWave) applications. By using characteristic mode analysis, it found that unwanted higher order (HOM) RRDRA results in severe gain degradation and high cross-polarization when scans. To remedy problem, each loaded with a pair silver strips. They can suppress HOM enable good scanning performance wide frequency range. demonstrate idea, <inline-formula...

To solve the problem of controlling an intrinsically compliant actuator, pneumatic muscle actuator (PMA), this paper presents extended proxy-based sliding mode control (EPSMC) strategy. It is well known that chattering phenomenon conventional (SMC) can be effectively solved by introducing a proxy between physical object and desired position, which results in so-called (PSMC). facilitate theoretical analysis PSMC obtain more general form controller, new virtual coupling SMC are used our...

The pneumatic muscle actuator (PMA) has been widely applied in the researches of rehabilitation robotic devices for its high power to weight ratio and intrinsic compliance past decade. However, nonlinearity hysteresis behavior PMA limit practical application. Hence, control strategy plays an important role improving performance effectiveness devices. In this paper, a PMA-based knee exoskeleton based on ergonomics is proposed. Based designed exoskeleton, novel proxy-based sliding mode (PSMC)...

This paper designs optimal control polices for networked multiagent pursuit-evasion game (MPEG) problems based on reinforcement learning (RL) technique. Depending the number of evaders, MPEG is formulated into several simpler multiple-pursuer single-evader games (MPSEGs) by a divide and conquer approach. Then we propose policies all agents in each MPSEG, which constitute distributed Nash equilibrium, provide capturability equilibrium analysis. Finally, data-driven RL algorithm developed to...

Abstract This article studies finite-time distributed formation tracking control of a second-order multi-unmanned aerial vehicle (UAV) system. To reduce the burden system’s computation and communication, framework is designed in configuration, which time-varying reference trajectory known by following UAVs as exogenous input that decides moving target. Then, time-triggered event-triggered consensus protocols are proposed theoretically proved to achieve flight finite time. Finally, numerical...

Abstract In the present work, we propose an adaptive topology optimization (TO) method under suitably graded truncated hierarchical B‐spline refinement and coarsening (SGTHB‐TO). A series of algorithms have been devised to implement admissible adaptivity SGTHB‐TO by resorting definitions isogeometric meshes. We apply proposed two‐dimensional three‐dimensional TO problems compliance compliant mechanism. According numerical results, SGTHB‐TOs with or without restriction share similar...

Abstract We present an energy penalization method for isogeometric topology optimization using moving morphable components (ITO-MMC), propose ITO-MMC with additional bilateral or periodic symmetric constraint structures, and then extend the proposed to a constraint. The can solve problems of numerical instability convergence subjected structural asymmetric loads. Topology asymmetric, symmetric, structures are discussed validate effectiveness approach. Compared conventional ITO-MMC, improve...

This paper considers the model-free optimal consensus problem of networked Euler-Lagrange systems without velocity measurements. By employing position information, a novel neural network-based observer is built for each agent to estimate unmeasurable vector and unknown system model. Based on estimated we propose distributed control policies depended solutions coupled Hamilton-Jacobi-Bellman (HJB) equations. Then, policy iteration (PI) algorithm provided learn HJB equations online. To...