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Corrigendum to “A critical review on mechanical micro-drilling of glass and carbon fibre reinforced polymer (GFRP and CFRP) composites” [Compos B: Eng 254 (2023) 110589]

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Composites Part B: Engineering 2023年 262卷

作者： Norbert Geier Karali Patra Ravi Shankar Anand Sam Ashworth Barnabás Zoltán Balázs Tamás Lukács Gergely Magyar Péter Tamás-Bényei Jinyang Xu J Paulo Davim Budapest University of Technology and Economics Faculty of Mechanical Engineering Department of Manufacturing Science and Engineering Budapest 1111 Hungary Indian Institute of Technology Patna Department of Mechanical Engineering Patna 801103 India Birla Institute of Technology Department of Mechanical Engineering Patna Campus Patna 800014 India North of England Robotics Innovation Centre The University of Salford Salford Greater Manchester UK Budapest University of Technology and Economics Faculty of Mechanical Engineering Department of Polymer Engineering Műegyetem rkp. 3 Budapest 1111 Hungary ELKH–BME Research Group for Composite Science and Technology Műegyetem rkp. 3 Budapest 1111 Hungary Shanghai Jiao Tong University School of Mechanical Engineering State Key Laboratory of Mechanical System and Vibration Shanghai 200240 PR China University of Aveiro Department of Mechanical Engineering Centre for Mechanical Engineering and Automation (TEMA) Campus Santiago Aveiro 3810-193 Portugal

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Mitigation of flow instabilities in multiport minichannel thermosyphon through a modified loop design with separate vapor-liquid paths

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Case Studies in Thermal Engineering 2025年 73卷

作者： Jaya Antony Perinba Selvin Raj Lazarus Godson Asirvatham Appadurai Anitha Angeline Bairi Levi Rakshith Jefferson Raja Bose Stephen Manova Vivek Vengatoor Mana Mostafa Safdari Shadloo Somchai Wongwises Department of Mechanical Engineering Karunya Institute of Technology and Sciences Coimbatore 641 114 Tamil Nadu India Centre for Research in Material Science and Thermal Management (CRMS &TM) Karunya Institute of Technology and Sciences Coimbatore 641 114 Tamil Nadu India Department of Robotics Engineering Karunya Institute of Technology and Sciences Coimbatore 641 114 Tamil Nadu India Department of Mechanical Engineering Faculty of Engineering King Mongkut's University of Technology Thonburi (KMUTT) Bangmod Bangkok 10140 Thailand Department of Mechanical Engineering NSS College of Engineering Palakkad 6780008 Kerala India INSA Rouen Normandie Univ. Rouen Normandie CNRS Normandie University CORIA UMR 6614 F-76000 Rouen France Institut Universitaire de France Rue Descartes F-75231 Paris France

Multiport minichannel thermosyphons with hydraulic diameters below 1.2 mm often encounter severe flow instabilities and oscillations in vapor and condensate movement, which hinder effective phase change processes. These instabilities can cause partial and localized dry-out, resulting in higher operating temperatures and reduced thermal performance. To overcome these limitations, a novel multiport minichannel thermosyphon loop (MPMCTSL) is proposed. This design integrates a compensation chamber (CC) to ensure uniform fluid distribution across all channels and suppress instabilities near the evaporator. Additionally, the loop features separate flow paths for vapor and liquid to mitigate entrainment issues. The study experimentally investigates the thermal performance of MPMCTSL using acetone as the working fluid, considering fill ratios of 40 %, 50 %, and 60 %, inclination angles of 0°, 30°, 60°, and 90°, and varying heat loads from 10 to 80 W. Results demonstrate that 5 mm CC length delivers optimal performance by stabilizing condensate flow and ensuring continuous fluid replenishment to the evaporator. This results in minimum thermal resistance of 0.34 K/W and a peak vapor velocity of 4.36 m/s at 80 W heat load. Furthermore, the observed flow regime transition from churn to annular with increasing heat input confirms the improved stability and effectiveness of the MPMCTSL design.

关键词： Multiport mini-channel Loop thermosyphon Entrainment Heat transfer Power electronic cooling Compensation chamber design Two-phase fluid flow pattern analysis

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Advancing Embodied Intelligence in Robotic-Assisted Endovascular Procedures: A Systematic Review of AI Solutions

arXiv

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arXiv 2025年

作者： Yao, Tianliang Lu, Bo Kowarschik, Markus Yuan, Yixuan Zhao, Hubin Ourselin, Sebastien Althoefer, Kaspar Ge, Junbo Qi, Peng Department of Control Science and Engineering College of Electronic and Information Engineering Shanghai Institute of Intelligent Science and Technology Tongji University Shanghai200092 China Department of Electronic Engineering Faculty of Engineering The Chinese University of Hong Kong 999077 Hong Kong Robotics and Microsystems Center School of Mechanical and Electrical Engineering Soochow University Suzhou215131 China Bavaria Forchheim91301 Germany CREATe Division of Surgery & Interventional Science UCL LondonHA7 4LP United Kingdom School of Biomedical Engineering & Imaging Sciences King’s College London LondonSE1 7EH United Kingdom Centre for Advanced Robotics @ Queen Mary School of Engineering and Materials Science Queen Mary University of London LondonE1 4NS United Kingdom Department of Cardiology Zhongshan Hospital Fudan University Shanghai Institute of Cardiovascular Diseases Shanghai200032 China State Key Laboratory of Cardiovascular Diseases Medical Innovation Center Shanghai East Hospital School of Medicine Tongji University Shanghai200092 China

Endovascular procedures have revolutionized the treatment of vascular diseases thanks to minimally invasive solutions that significantly reduce patient recovery time and enhance clinical outcomes. However, the precision and dexterity required during these procedures poses considerable challenges for interventionists. Robotic systems have emerged offering transformative solutions, addressing issues such as operator fatigue, radiation exposure, and the inherent limitations of human precision. The integration of Embodied Intelligence (EI) into these systems signifies a paradigm shift, enabling robots to navigate complex vascular networks and adapt to dynamic physiological conditions. Data-driven approaches, advanced computer vision, medical image analysis, and machine learning techniques, are at the forefront of this evolution. These methods augment procedural intelligence by facilitating real-time vessel segmentation, device tracking, and anatomical landmark detection. Reinforcement learning and imitation learning further refine navigation strategies and replicate experts’ techniques. This review systematically examines the integration of EI principles into robotic technologies, in relation to endovascular procedures. We discuss recent advancements in intelligent perception and data-driven control, and their practical applications in robot-assisted endovascular procedures. By critically evaluating current limitations and emerging opportunities, this review establishes a framework for future developments, emphasizing the potential for greater autonomy and improved clinical outcomes. Emerging trends and specific areas of research, such as federated learning for medical data sharing, explainable AI for clinical decision support, and advanced human-robot collaboration paradigms, are also explored, offering insights into the future direction of this rapidly evolving field. © 2025, CC BY.

关键词： Medical robotics

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Distributedly Solving Boolean Equations over Networks

Distributedly Solving Boolean Equations over Networks

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IEEE Conference on Decision and Control

作者： Hongsheng Qi Bo Li Rui-Juan Jing Alexandre Proutiere Guodong Shi Key Laboratory of Systems and Control Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China School of Mathematical Sciences University of Chinese Academy of Sciences Beijing China Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China Faculty of Science Jiangsu University Zhenjiang China KTH Royal Institute of Technology Stockholm Sweden Australian Center for Field Robotics School of Aerospace Mechanical and Mechatronic Engineering The University of Sydney NSW Australia

ISBN: (数字)9781728174471

ISBN: (纸本)9781728174488

In this paper, we propose distributed algorithms that solve a system of Boolean equations over a network, where each node in the network possesses only one Boolean equation from the system. The Boolean equation assigned at any particular node is a private equation known to this node only, and the nodes aim to compute the exact set of solutions to the system without exchanging their local equations. We show that each private Boolean equation can be locally lifted to a linear algebraic equation under a basis of Boolean vectors, leading to a network linear equation that is distributedly solvable. A number of exact or approximate solutions to the induced linear equation are then computed at each node from different initial values. The solutions to the original Boolean equations are eventually computed locally via a Boolean vector search algorithm. We prove that given solvable Boolean equations, when the initial values of the nodes for the distributed linear equation solving step are i.i.d selected according to a uniform distribution in a high-dimensional cube, our algorithms return the exact solution set of the Boolean equations at each node with high probability.

关键词： Signal processing algorithms Heuristic algorithms Consensus algorithm Distributed algorithms Approximation algorithms Signal processing Convergence

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Ribs of Pinna nobilis shell induce unexpected microstructural changes that provide unique mechanical properties

Research Square

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Research Square 2020年

作者： Nalepka, Kinga Berent, Katarzyna Checa, Antonio G. Machniewicz, Tomasz Harris, Adrian J. Nalepka, Pawel Strąg, Martyna Maj, Lukasz Szkudlarek, Aleksandra Bieda, Magdalena Sztwiertnia, Krzysztof Faculty of Mechanical Engineering and Robotics AGH University of Science and Technology Krakow Poland Academic Centre for Materials and Nanotechnology AGH University of Science and Technology Krakow Poland Department of Stratigraphy and Paleontology University of Granada Granada Spain Andalusian Institute of Earth Sciences CSIC-University of Granada Armilla Spain Micro Materials Ltd. Willow House Ellice Way Yale Business Village WrexhamLL13 7YL United Kingdom Institute of Metallurgy and Materials Science Polish Academy of Sciences Krakow Poland

The reinforcement function of shell ribs depends not only on their vaulted morphology but also on their microstructure. They are part of the outer layer which, in the case of the Pinna nobilis bivalve, is built from almost monocrystalline calcitic prisms, always oriented perpendicular to the growth surfaces. Originally, prisms and their c-axes follow the radii of rib curvature, becoming oblique to the shell thickness direction. Later, prisms bend to reach the nacre layer perpendicularly, but their c-axes retain the initial orientation. Calcite grains form nonrandom boundaries. Most often, three twin disorientations arise, with two of them observed for the first time. Nano-indentation and impact tests demonstrate that the oblique orientation of c-axes significantly improves the hardness and fracture toughness of prisms. Moreover, compression tests reveal that the rib area achieves a unique strength of 700 MPa. The detection of the specific microstructure formed to toughen the shell is novel. © 2020, CC BY.

关键词： Prisms

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Automatization of workspace control based on ToF technology

Automatization of workspace control based on ToF technology

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Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018

作者： Adamczyk, Jaroslaw Sioma, Andrzej AGH University of Science and Technology Faculty of Mechanical Engineering and Robotics Department of Process Control al. Mickiewicza 30 Cracow30-059 Poland

ISBN: (数字)9781510622043

ISBN: (纸本)9781510622036

This paper presents the subject of using 3D images produced with the TOF technology in a task of automatic detection and location of obstacles in the machine workspace and on the production lines. The robotic station with a TOF sensor and an application for gathering spatial data is presented. Further on, a method of building a 3D image of the space with the TOF method is presented. The algorithm used to analyze the 3D image is discussed that provides initial processing of the image in terms of filtering and enhancing the characteristic properties of the image. The resolution of the 3D image is described in the context of the most common tasks executed in production lines. Moreover in this paper research about quality of measurement in variety of disruption which exist in industrial environment is presented. Solution of depiction in disturbed condition has been presented for chosen group of distortion. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Image analysis

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Lévy walks derived from a Bayesian decision-making model in non-stationary environments

arXiv

引用

arXiv 2020年

作者： Shinohara, Shuji Manome, Nobuhito Nakajima, Yoshihiro Gunji, Yukio Pegio Moriyama, Toru Okamoto, Hiroshi Mitsuyoshi, Shunji Chung, Ung-Il Department of Bioengineering Graduate School of Engineering The University of Tokyo Tokyo113-8656 Japan Department of Research and Development SoftBank Robotics Group Corp. Tokyo105-0021 Japan Graduate School of Economics Osaka City University Osaka558-8585 Japan Department of Intermedia Art and Science School of Fundamental Science and Technology Waseda University Tokyo169-8555 Japan Faculty of Textile Science Shinshu University Ueda386-8567 Japan

Lévy walks are found in the migratory behaviour patterns of various organisms, and the reason for this phenomenon has been much discussed. We use simulations to demonstrate that learning causes the changes in confidence level during decision-making in non-stationary environments, and results in Lévy-walk-like patterns. One inference algorithm involving confidence is Bayesian inference. We propose an algorithm that introduces the effects of learning and forgetting into Bayesian inference, and simulate an imitation game in which two decision-making agents incorporating the algorithm estimate each other's internal models from their opponent's observational data. For forgetting without learning, agent confidence levels remained low due to a lack of information on the counterpart and Brownian walks occurred for a wide range of forgetting rates. Conversely, when learning was introduced, high confidence levels occasionally occurred even at high forgetting rates, and Brownian walks universally became Lévy walks through a mixture of high- and low-confidence states. Copyright © 2020, The Authors. All rights reserved.

关键词： Decision making

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A Novel Autonomous Robot for Greenhouse Applications

A Novel Autonomous Robot for Greenhouse Applications

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2018 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2018

作者： Grimstad, Lars Zakaria, Rémy Dung Le, Tuan From, Pål Johan Norwegian University of Life Sciences Faculty of Science and Technology Drobakveien 31 Ås1433 Norway Saga Robotics Sagaveien 3 Ås1433 Norway

ISBN: (纸本)9781538680940

This paper presents a novel agricultural robot for greenhouse applications. In many greenhouses, including the greenhouse used in this work, sets of pipes run along the floor between plant rows. These pipes are components of the greenhouse heating system, and doubles as rails for trolleys used by workers. A flat surface separates the start of each rail set at the greenhouse headland. If a robot is to autonomously drive along plant rows, and also be able to move from one set of rails to the next, it must be able to locomote both on rails and on flat surfaces. This puts requirements on mechanical design and navigation, as the robot must cope with two very different operational environments. The robot presented in this paper has been designed to overcome these challenges and allows for autonomous operation both in open environments and on rails by using only low-cost sensors. The robot is assembled using a modular system created by the authors and tested in a greenhouse during ordinary operation. Using the robot, we map the environment and automatically determine the starting point of each rail in the map. We also show how we are able to identify rails and estimate the robots pose relative to theses using only a low-cost 3D camera. When a rail is located, the robot makes the transition from floor to rail and travels along the row of plants before it moves to the next rail set which it has identified in the map. The robot is used for UV treatment of cucumber plants. © 2018 IEEE.

关键词： Greenhouses

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Game Scene Construction for Lower Limb Rehabilitation Robot Based on Virtual Reality

Game Scene Construction for Lower Limb Rehabilitation Robot ...

引用

International Conference on Electromechanical Control technology and Transportation (ICECTT)

作者： Yongfei Feng Di Jin Qianjun Shao Jianye Niu Luige Vladareanu Hongbo Wang Faculty of Mechanical Engineering & Mechanics Ningbo University Ningbo China Hebei Key Laboratory of Robot Sensing and Human-Robot Interaction Hebei University of Technology Tianjin China Robotics and Mechatronic Department Institute of Solid Mechanics of the Romanian Academy Bucharest Romania Parallel Robot and Mechatronic System Laboratory of Hebei Province and Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education Yanshan University Qinhuangdao China

ISBN: (数字)9781728199283

ISBN: (纸本)9781728199290

At present, the number of patients with lower extremity dysfunction is increasing year by year. However, traditional rehabilitation training cannot meet the needs of patients for rehabilitation training. Rehabilitation robot is a good solution to train patients instead of the rehabilitation physician. Based on clinical practice experience, a lower limb rehabilitation training system based on virtual reality (VR) is designed, which combined the VR technology and rehabilitation evaluation program to improve the rehabilitation efficiency of patients. According to the functional requirements of the lower limb rehabilitation robot (LLR-RO), the construction of rehabilitation robot control system and sensor system is completed. Based on the Unity3D development environment, a VR scenes of space shooting is planned and created for rehabilitation training VR technology which enables patients to complete the training process while maintaining a pleasant mood. Through the software and hardware debugging, the feasibility, data transmission capability of VR-based remote rehabilitation training system and the synchronization performance of VR scenes and rehabilitation robots are verified. In the future, more virtual reality scenes will be studied to adapt to patients of different genders and ages.

关键词： Games Training Rehabilitation robotics Space vehicles Legged locomotion Aircraft Aerospace electronics

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Coagulation behaviour of bentonite clay suspensions 18

Coagulation behaviour of bentonite clay suspensions

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18th International Multidisciplinary Scientific Geoconference, SGEM 2018

作者： Warzecha, Piotr Hilger, Bartlomiej AGH University of Science and Technology Faculty of Mechanical Engineering and Robotics Department of Power Systems and Environmental Protection Mickiewicza 30 Krakow30-059 Poland

ISBN: (纸本)9786197408355

The study of coagulation behaviour of bentonite clay suspensions is presented in this paper. Experimental results were obtained by investigation of several chemical and physical properties of two bentonite suspensions. The study included several measurements such as particle size distributions, chemical and phase analysis of prepared suspensions, as well as preparation of sedimentation graphs and the relationship between concentration of the suspension and turbidity. The results of this research could help in determination of critical coagulation concentration during analysis of coagulation process in cases, where bentonite clay is detected in suspension. This could be important, because source water for water treatment plants can contain various mechanical and biological impurities and it is required to remove them from potable water. For that purpose sedimentation process aided by coagulation process, which is used in order to separate most of the solid pollutants from water. It could also help during process of designing high efficiency sedimentation tanks in water treatment plants for suspensions of similar origin. © SGEM2018.

关键词： Suspensions (fluids)

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