A Brief Observational History of the Black-Hole Spacetimes by Wolfgang Kundt

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From Interfacial Water to Macroscopic Observables: A Review by Alberto Striolo

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Inter-reader agreement for diagnosing thymic cysts on chest MRI in two tertiary referral centers by Yura Ahn, Sang Min Lee, Chu Hyun Kim, Sehee Kim, Jooae Choe, Joon Beom Seo, Ho Yun Lee

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Use of an observer tool to enhance learning of anaesthesia resident’s non-technical skills during high-fidelity simulation: a randomised controlled trial by Caroline Havard, Viridiana Jouffroy, Agnès Le Gouez, Marie Bruyère, Samy Figueiredo, Philippe Roulleau, Dan Benhamou, Aurore Margat, Antonia Blanié

Subjects: “…Observer tool…”
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Collision detection and external force estimation for robot manipulators using a composite momentum observer by Benaoumeur Ibari, Mourad Hebali, Baghdadi Rezali, Menaouer Bennaoum

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The greenhouse gas observation mission with Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW): objectives, conceptual framework and scientific contributions by Hiroshi Tanimoto, Tsuneo Matsunaga, Yu Someya, Tamaki Fujinawa, Hirofumi Ohyama, Isamu Morino, Hisashi Yashiro, Takafumi Sugita, Satoshi Inomata, Astrid Müller, Tazu Saeki, Yukio Yoshida, Yosuke Niwa, Makoto Saito, Hibiki Noda, Yousuke Yamashita, Kohei Ikeda, Nobuko Saigusa, Toshinobu Machida, Matthias Max Frey, Hyunkwang Lim, Priyanka Srivastava, Yoshitaka Jin, Atsushi Shimizu, Tomoaki Nishizawa, Yugo Kanaya, Takashi Sekiya, Prabir Patra, Masayuki Takigawa, Jagat Bisht, Yasko Kasai, Tomohiro O. Sato

“…Abstract The Japanese Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW) will be an Earth-observing satellite to conduct global observations of atmospheric carbon dioxide (CO2), methane (CH4), and nitrogen dioxide (NO2) simultaneously from a single platform. …”
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A Finite-Time Fractional-Order Error Extended State Observer for Hypersonic Vehicle by Mingfei Zhao, Jia Song, Yunlong Hu, Wenling Li

“…Theoretical analysis has confirmed that the observation error of FTFOEESO is uniformly bounded. …”
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Similarities and differences between exosystem-model-based disturbance observer and model error compensator by Kana Shikada, Noboru Sebe

Subjects: “…disturbance observer…”
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Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems by Lingfei Tian, Linfang Qian, Miao Li, Jiawei Fu

“…The observer’s parameter matrices are obtained by the linear matrix inequality. …”
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Disturbance Observer-Based Nonsingular Terminal Sliding Mode Control for Spacecraft Electromagnetic Docking by Jinghui Zhang, Guoqiang Zeng, Shifeng Zhang

“…This paper presents a novel nonlinear sliding mode control scheme that combines on-line model modification, a nonlinear sliding mode controller, and a disturbance observer to solve the essential problems in spacecraft electromagnetic docking control, such as model uncertainties, unknown external disturbances, and inherent strong nonlinearity and coupling. …”
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Simulating Crowd Evacuation in a Social Force Model with Iterative Extended State Observer by Juan Wei, Wenjie Fan, Zhongyu Li, Yangyong Guo, Yuanyuan Fang, Jierui Wang

“…In order to depict this process, the social force model is improved based on an iterative extended state observer so that the crowds can move along the optimal evacuation path. …”
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High-Gain Observer in Fuel Cell and Cascaded DC-DC Boost Converter System by Nady Soukaina, El Fadil Hassan, Lassioui Abdellah, El Asri Yassine, Hasni Anwar

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Non-Linear Control of Interleaved Boost Converter Using Disturbance Observer-Based Approach by Avinash Mishra, Sanjoy Mandal, Jean-Yves Dieulot, Mrinal R. Bachute, Mohd Faizan, Anna Pinnarelli, Mehrdad Heidari, Alireza Soleimani

“…An innovative Integral sliding-mode controller along with a disturbance observer for the two-phase IBC (2PIBC) is suggested to ensure such large-signal stability. …”
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Predictive Control for PV- Water Pumping System based of Interconnected High Gain Observer by Lamouchi Zakaria, Allal Abderrahim, Abderrahmane Khechekhouche, Antonio Marcos de Oliveira Siqueira, Júlio Cesar Costa Campos, Kheireddine Lamamra

Subjects: “…Cost function. High gain observer.…”
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Informing grassland ecosystem modeling with in-situ and remote sensing observations by Johny Arteaga, Melannie D Hartman, William J Parton, Maosi Chen, Wei Gao

“…For this study we developed new methods for informing DayCent-UV of growing season length and validating its plant productivity estimates for grasslands by utilizing a wide range of data sources at multiple scales, from field observations to remotely sensed satellite data. The model’s phenology was informed by the MODIS MCD12Q2 product, which showed good agreement with in-situ observations of growing season commencement and duration across different grassland ecosystems, and with observed historical trends. …”
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Correlating 0νββ decays and flavor observables in leptoquark models by S. Fajfer, L. P. S. Leal, O. Sumensari, R. Zukanovich Funchal

“…Furthermore, we explore the correlation between 0νββ and flavor observables, such as kaon decays and μ → e conversion in nuclei, emphasizing that the latter is complementary to 0νββ decays.…”
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Observations of wind farm wake recovery at an operating wind farm by R. Krishnamurthy, R. K. Newsom, C. M. Kaul, S. Letizia, M. Pekour, N. Hamilton, D. Chand, D. Flynn, N. Bodini, P. Moriarty

“…In these observations, several key findings were observed, such as (a) LLJ heights being altered downstream of a wind farm, especially when the LLJs are below 250 m above ground level; (b) a notable impact of LLJ height on wake recovery being observed using momentum flux profiles at upwind and downwind locations, wherein LLJs between 250 and 500 m above ground level resulted in larger momentum transfer within the wake (i.e., smaller velocity deficit) compared to LLJs below 250 m above ground level; (c) the largest momentum flux variability being observed during stable atmospheric conditions, with non-negligible variability observed during neutral and unstable atmospheric conditions; (d) detection of wake effects almost always being observed throughout the atmospheric boundary layer height; and finally (e) enhancement of wake recovery being observed in the presence of propagating gravity waves. …”
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Experimental, Observational, and Numerical Research on Intentional and Inadvertent Weather Modification by Lulin Xue, Bart Geerts, Xueliang Guo, István Geresdi, Steven Siems

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Controllability and Observability Criteria for Linear Piecewise Constant Impulsive Systems by Hong Shi, Guangming Xie

“…This paper studies the controllability and observability of linear piecewise constant impulsive systems. …”
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Research Progress of Nuclear Energy Batteries for Ocean Observation Equipment by Rongyu SHAO, Yushu YANG, Xu WANG, Jianxiong SHAO, Aixiang YANG

Subjects: “…ocean observation equipment…”
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