Integral Nonsingular Terminal Sliding Mode Control of Hydraulic Servo Actuator Based on Extended State Observer by Zhenshuai Wan, Yu Fu

“…In this paper, an integral nonsingular terminal sliding mode controller based on extended state observer (ESO-INTSM) is proposed to improve the robust performance of hydraulic servo actuator. …”
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An Observer-Based Event Triggered Mechanism for the Detection and Mitigation of FDI Attacks in Deep Brain Stimulation Systems by Ping Yu, Ding Yang, Khalid A. Alattas, Ardashir Mohammadzadeh, Afef Fekih

Subjects: “…fractional order extended state observer (FOESO)…”
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Adaptive Finite-Time Disturbance Observer Based Sliding Mode Control for Dual-Motor Driving System by Tianyi Zeng, Xuemei Ren, Yao Zhang

“…The overall system containing both the observer and the controller is proven to be stable. …”
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Robust Finite-Time Tracking Control Based on Disturbance Observer for an Uncertain Quadrotor under External Disturbances by Hamid Hassani, Anass Mansouri, Ali Ahaitouf

“…A nonlinear disturbance observer (DO) is incorporated into the control system to estimate the unknown external perturbations and to strengthen the system’s robustness. …”
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Tracking Control of a Galfenol-Actuated Nanopositioning Stage Using Feedforward Control with a Disturbance Observer by Shiping Jiang, Bin Xu, Shuxin Liu, Wei Zhu

“…In this controller, a feedforward control is developed to compensate the rate-dependent hysteresis, and a disturbance observer is employed to restrain disturbances, high-order unmodeled dynamics, and hysteresis compensation error. …”
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High-Order Observer-Based Sliding Mode Control for the Isolated Microgrid with Cyber Attacks and Physical Uncertainties by Hao Wang, He Jiang, Yan Zhao, Huanxin Guan, Bo Hu, Shunjiang Wang

“…Firstly, a high-order disturbance observer (HODO) is designed to estimate the unmeasurable factors in the microgrid. …”
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Disturbance-Observer-Based Fuzzy Control for a Robot Manipulator Using an EMG-Driven Neuromusculoskeletal Model by Longbin Zhang, Wen Qi, Yingbai Hu, Yue Chen

“…This paper developed a disturbance-observer-based fuzzy control framework for a robot manipulator using an electromyography- (EMG-) driven neuromusculoskeletal (NMS) model. …”
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Observer-Based H∞ Fuzzy Synchronization and Output Tracking Control of Time-Varying Delayed Chaotic Systems by Kuan-Yi Lin, Tung-Sheng Chiang, Chian-Song Chiu, Wen-Fong Hu, Peter Liu

“…Tracking control for the output using an observer-based H∞ fuzzy synchronization of time-varying delayed discrete- and continuous-time chaotic systems is proposed in this paper. …”
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A framework for assessing reliability of observer annotations of aerial wildlife imagery, with insights for deep learning applications by Rowan L. Converse, Christopher D. Lippitt, Steven E. Sesnie, Grant M. Harris, Matthew J. Butler, David R. Stewart

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Novel Continuous Terminal Sliding Mode Observer Based Sensorless Speed Control of PMSM Drive System by Abdul Khalique Junejo, Mohsin Ali Koondhar, Rizwan Aziz Siddiqui, Ghulam Sarwar Kaloi, Muhammad Ali Bijarani

Subjects: “…PMSM, sliding mode control (SMC), conventional SMO (CSMO), continuous terminal sliding mode observer…”
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Quantifying observer variance in expansive monitoring program indicator data with heterogeneous-variance mixed-effects models by Leah T. Dreesmann, Timothy R. Johnson, Jason W. Karl

Subjects: “…Observer error…”
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Design of Robust Adaptive Observer against Measurement Noise for Sensorless Vector Control of Induction Motor Drives by Asma Boulmane, Youssef Zidani, Mohammed Chennani, Driss Belkhayat

“…The observer allows the filtering of the measured currents. …”
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Intelligent Cognitive Radio Models for Enhancing Future Radio Astronomy Observations by Ayodele Abiola Periola, Olabisi Emmanuel Falowo

“…Radio astronomy organisations desire to optimise the terrestrial radio astronomy observations by mitigating against interference and enhancing angular resolution. …”
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Germigny-des-Prés : nouvelles observations archéologiques sur le bâti by Christian Sapin, Stéphane Büttner, Sylvain Aumard

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Suicide in Hong Kong during the COVID-19 pandemic: an observational study by Yu Jiang, Anying Bai, Jinjian Li, Yuhang Pan

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Consistent Trends in Dry Spell Length in Recent Observations and Future Projections by Caroline M. Wainwright, Richard P. Allan, Emily Black

“…Abstract We identify global observed changes in dry‐spell characteristics that are consistent with future projections and involve common physical drivers. …”
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Observation of minimal and maximal speed limits for few and many-body states by Zitian Zhu, Lei Gao, Zehang Bao, Liang Xiang, Zixuan Song, Shibo Xu, Ke Wang, Jiachen Chen, Feitong Jin, Xuhao Zhu, Yu Gao, Yaozu Wu, Chuanyu Zhang, Ning Wang, Yiren Zou, Ziqi Tan, Aosai Zhang, Zhengyi Cui, Fanhao Shen, Jiarun Zhong, Tingting Li, Jinfeng Deng, Xu Zhang, Hang Dong, Pengfei Zhang, Zhen Wang, Chao Song, Chen Cheng, Qiujiang Guo, Hekang Li, H. Wang, Hai-Qing Lin, Rubem Mondaini

“…We also unveil the observation of minimal quantum speed limits in addition to more common maximal ones, i.e., the lowest rate of change of a unitarily evolved quantum state. …”
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Observation of Climacteric-Like Behavior of Citrus Leaves Using Fluorescence Spectroscopy by Caio B. Wetterich, Emery C. Lins, José Belasque, Luis G. Marcassa

“…Observation of climacteric-like behavior in citrus leaves depends on the detection of ethylene. …”
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The Effect of Nintedanib in Post-COVID-19 Lung Fibrosis: An Observational Study by Narongkorn Saiphoklang, Pimchanok Patanayindee, Pitchayapa Ruchiwit

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Bayesian Inference on the Shape Parameter and Future Observation of Exponentiated Family of Distributions by Sanku Dey, Sudhansu S. Maiti

“…We have also considered the highest posterior density (HPD) intervals for the parameter and the equal-tail and HPD prediction intervals for future observation. Finally, we analyze one data set for illustration.…”
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