Adaptive Neural Control with Prespecified Tracking Accuracy for a Class of Switched Systems Subject to Input Delay by Xu Zhang, Jian Wu, Wu Ai, Jing Li

“…It can be shown that the closed-loop system is semiglobally uniformly ultimately bounded (SGUUB) and the tracking error satisfies the predefined accuracy. …”
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Design of Robust Supertwisting Algorithm Based Second-Order Sliding Mode Controller for Nonlinear Systems with Both Matched and Unmatched Uncertainty by Marwa Jouini, Slim Dhahri, Anis Sellami

“…The modified algorithm is formed of double closed-loop feedback, in which two linear terms are added to the classical STA. …”
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Modelling Hysteresis in Shape Memory Alloys Using LSTM Recurrent Neural Network by Mohammad Reza Zakerzadeh, Seyedkeivan Naseri, Payam Naseri

“…Traditional NNs, characterized by a one-to-one mapping, struggle to capture hysteresis loops wherein system behavior varies during loading and unloading cycles. …”
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Reducing personal protective equipment waste in the emergency department of a large regional hospital: codesign informed by system science by Mike Forrester, Rebecca Patrick, Steven Allender, Jaithri Ananthapavan, Urvi Thanekar, Hasini Gunasiri, Minoo Naebe, Maryam Naebe

“…Background This study aimed to bring together health workers from an emergency department (ED) and broader health system changemakers to cocreate a system-oriented understanding of the drivers of single-use personal protective equipment (PPE) waste, and recommend priority actions for government policy, and organisational change, to reduce PPE waste and transition towards a circular economy approach.Methods Participatory group model building was used with ED and PPE health service stakeholders to create a causal loop diagram of drivers of PPE waste and use this diagram to codesign actions to address this waste. …”
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Design, Fabrication, and Comparative Study of Electronically Tunable Active Filters by Umesh Kumar, P. Bhushan Mital

“…The Kerwin-Huelsman Newcomb (KHN) biquad is the natural choice for use as a ‘universal’ filter building block out of the several existing 3-amplifier biquadratic filter sections based on the two integrator loop or state variable realization of 2nd order systems. …”
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The Stability of a Two-Axis Gimbal System for the Camera by Nguyen Cong Danh

“…This paper presents a two-axis gimbal loop in which the LOS rate is stable, and I proceed to examine the stability of the system to get a better overview of the system properties. …”
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The Aronsson Equation, Lyapunov Functions, and Local Lipschitz Regularity of the Minimum Time Function by Pierpaolo Soravia

“…We show that such super/subsolutions make the Hamiltonian monotone on the trajectories of the closed loop Hamiltonian dynamics. We give a short, general proof that C1-solutions are absolutely minimizing functions. …”
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Celestial $w_{1+\infty}$ charges and the subleading structure of asymptotically-flat spacetimes by Marc Geiller

“…We study the subleading structure of asymptotically-flat spacetimes and its relationship to the $w_{1+∞}$ loop algebra of higher spin charges. We do so using both the Bondi–Sachs and the Newman–Penrose formalism, via a dictionary built from a preferred choice of tetrad. …”
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Analysis of Pulse System Dynamics of Phase Synchronization in Multiple Capture Mode by A. L. Shilina

“…Necessity of the latter is caused by the fact that pulse systems using phase control principle are rather often applied at high or super high frequencies when realization of a divider with variable division coefficient which is set in the feedback loop is rather complicated or practically impossible. …”
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Finite-Time Admissibility and Controller Design for T-S Fuzzy Stochastic Singular Systems with Distinct Differential Term Matrices by Liang Qiao, Zhaomin Lv

“…Based on admissibility analysis results, a design method for parallel distribution compensation (PDC) controller of FSSSs is given to guarantee the finite-time admissibility of the closed-loop system. Finally, the feasibility and effectiveness of the proposed methods in this article are illustrated with three examples.…”
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Coevolution of Interorganizational Psychological Contract and Interorganizational Relationship: A Case Study of Manufacturing Company in China by Wei He

“…Firstly based on the structural analysis of the interrelations of IPC and IOR, this paper builds the qualitative causal loop diagram of the interrelations. Based on investigation of 55 manufacturing enterprises in China we further draw the stock and flow diagram. …”
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Two Improved Cancellation Techniques for Direct-Conversion Receivers by Xueyuan Hao, Xiaohong Yan

“…Another is DC offset cancellation technique; a novel DC servo loop circuit is proposed to replace the traditional AC-coupled amplifier circuit. …”
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Curvature-Restored Gauge Invariance and Ultraviolet Naturalness by Durmuş Ali Demir

“…It is shown that (aΛ2+b|H|2)R in a spacetime of curvature R is a natural ultraviolet (UV) completion of (aΛ4+bΛ2|H|2) in the flat-spacetime Standard Model (SM) with Higgs field H, UV scale Λ, and loop factors a and b. This curvature completion rests on the fact that Λ-mass gauge theory in flat spacetime turns, on the cut view R=4Λ2, into a massless gauge theory in curved spacetime. …”
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A Real-Time Structure of Attitude Algorithm for High Dynamic Bodies by Xingcheng Li, Shuangbiao Zhang

“…During the update of the attitude matrix, the real-time structure saves every element of attitude matrix in minor loop in real time and updates the next attitude matrix based on the previous matrix every subsample time. …”
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CONSEQUENCES OF THE COVID-19 PANDEMIC IN THE EUROPEAN UNION FROM THE PERSPECTIVE OF GENERAL GOVERNMENT FINANCES – AN ANALYSIS BASED ON THE SOCIAL ACCOUNTING MATRI by Joanna Trębska

“…This is evidenced by the growing involvement of this sector in consumption, accumulation and income redistribution between institutional sectors.Simulation analyses based on the SAM model determine to what extent the contribution of the government sector to GDP results directly through feedback loops from final demand and to what extent from current and capital transfers.…”
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Optimized Sample Adaptive Offset Filter in HEVC by N. Archana, R. Menaka, P. T. Vasanth Raj, G. Keerthivasan, N. Kumar

“…The high-efficiency video coding (HEVC) standard incorporates sample adaptive offset (SAO) as an in-loop filtering technique to reduce distortion. The fundamental tenet of SAO is to classify every reconstructed pixel and then simply add the offset to each group of pixels. …”
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Unusual Suspect: A Case Report of Tubulocystic Renal Cell Carcinoma with Features of Cystic Renal Oncocytoma by Jacob D. McFadden, Isabell A. Sesterhenn, Sean Q. Kern

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Performance of clock sources and their influence on time synchronization in wireless sensor networks by Francisco Tirado-Andrés, Alvaro Araujo

“…The use of phase-locked loop circuits minimizes the impact of temperature and stabilizes oscillators. …”
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Hybrid Josephson Rhombus: A Superconducting Element with Tailored Current-Phase Relation by L. Banszerus, C. W. Andersson, W. Marshall, T. Lindemann, M. J. Manfra, C. M. Marcus, S. Vaitiekėnas

“…Here, we introduce the hybrid Josephson rhombus, a highly tunable superconducting circuit containing four semiconductor-superconductor hybrid Josephson junctions embedded in a loop. Combining magnetic frustration with gate-voltage-controlled tuning of individual Josephson couplings provides deterministic control of the harmonic content of the rhombus CPR. …”
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Robust Control for the Suspension Cable System of the Unmanned Helicopter with Sensor Fault under Complex Environment by Rong Mei

“…Furthermore, the closed-loop system stability is analyzed by using the Lyapunov technique. …”
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