Showing 721 - 740 results of 3,924 for search 'controller replacement', query time: 0.10s Refine Results
  1. 721

    Incidence of intradialytic hypotension in heart transplant recipients with acute kidney injury treated by acetate-free hemodiafiltration by A. G. Strokov, Ya. L. Poz

    Published 2024-04-01
    “…Intradialytic hypotension (IDH) is a common complication of renal replacement therapy (RRT) sessions and may be a particularly detrimental factor in heart recipients. …”
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  2. 722
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  4. 724

    Effects of Finishing on Surface Roughness of Four Different Glass-Ionomer Cements and One Alkasite: In Vitro Investigation over Time Using Aging Simulation by Alexander Behlau, Isabelle Behlau, Michael Payer, Gerd Leitinger, Katharina Hanscho, Lumnije Kqiku, Karl Glockner

    Published 2024-10-01
    “…This in vitro study aimed to examine the surface roughness variations of five amalgam-replacement materials across three time points and using six finishing methods: (1) no finishing (control), (2) Arkansas burs, (3) diamond burs, (4) tungsten carbide burs, (5) SofLex discs in descending grit size, and (6) coarse SofLex discs combined with silicone polishing. …”
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  5. 725
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  8. 728

    Development mechanism and practical significance of deep coalbed methane (coal rock gas) infiltration and displacement by Lihong ZHOU, Xia YAN, Hongtao LIU, Xianyue XIONG, Feng WANG, Shuguang LI, Jiyuan ZHANG, Chuanqing LIU, Xiong HU, Pu YUAN, Qianli MA, Xueguang ZHU

    Published 2025-07-01
    “…These efforts aimed to elucidate the “pressure displacement-imbibition-replacement” mechanism underlying hydraulic fracturing in deep CBM reservoirs. …”
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    Article
  9. 729

    Application of Sensorless Control Technology of Permanent Magnet Synchronous Motor in Tianjin Metro by Xingxiang ZHOU

    Published 2020-05-01
    “…The necessity of sensorless control technology of permanent magnet traction system in the field of rail transit was introduced, the position estimation method based on the electromagnetic relation of permanent magnet motor was summarized, and the performance indexes of position sensor and sensorless control technology were compared, which proved that sensorless control technology could completely replace position sensor. …”
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  10. 730

    A Distributed Model Predictive Control for Multiple Mobile Robots with the Model Uncertainty by Wei Shang, Hanzong Zhu, Yurong Pan, Xiuhong Li, Daode Zhang

    Published 2021-01-01
    “…In this paper, a distributed predictive control with the model uncertainty which uses the data-driven strategy and robust theory (data-driven RDMPC) is proposed for the formation control of multiple mobile robots. …”
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  11. 731

    Velocity Control Based on Active Disturbance Rejection for Air-Breathing Supersonic Vehicles by Chao Ming, Ruisheng Sun, Xiaoming Wang

    Published 2018-01-01
    “…In order to avoid possible oscillations in the design of the traditional extended state observer (TESO), a modified extended state observer (MESO) is developed, where a new smooth function is proposed to replace nonsmooth function of TESO. On the basis of it, an active disturbance rejection controller (ADRC) is designed for velocity control systems. …”
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  12. 732

    RESEARCH ON SPEED AND PRESSURE CONTROL STRATEGY OF STABLE SWITCH ABOUT FOREPOLING EQUIPMENT by LUAN LiJun, ZHAO HuiMeng, XIE Miao, LIU ZhiXiang

    Published 2017-01-01
    “…Taking into account the operational principle of forepoling equipment,and as the target to improving support efficiency and reducing the disturbance on the roof in the process of supporting,a kind of speed and pressure composition control method was presented.The control method adopts the constant pump driven directly by servo motor to replace the traditional electro-hydraulic proportional valve,and the variable structure algorithm based on the fuzzy sliding mode was used as control strategy.Theoretical analysis and experimental results show that,compared with the traditional speed and pressure control method,the control method presented in the paper can reduce concussion on the roof in the process of switching from speed control to pressure control,and can improve support efficiency.Research findings can provide a theoretical basis for the development and control strategy of forepoling equipment.…”
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  13. 733

    Verifiable access control scheme based on unpaired CP-ABE in fog computing by Jiangtao DONG, Peiwen YAN, Ruizhong DU

    Published 2021-08-01
    “…Fog computing extends computing power and data analysis applications to the edge of the network, solves the latency problem of cloud computing, and also brings new challenges to data security.Attribute encryption based on ciphertext strategy (CP-ABE) is a technology to ensure data confidentiality and fine-grained access control.The excessive computational overhead of bilinear pairing restricts its application and development.In response to this, a verifiable access control scheme was proposed based on unpaired CP-ABE in fog computing.In order to make CP-ABE more efficient, simple scalar multiplication in elliptic curve encryption was used to replace bilinear pairing, thereby reducing the overall computational overhead.Decryption operations were outsourced to fog nodes to reduce user computational complexity, and based on the tamper-proof and traceable characteristics of the blockchain, the correctness of the access transaction was verified and the access authorization process was recorded.Security and performance analysis shows that the scheme is safe under the elliptic curve decision-making DBDH (Diffie-Hellman) assumption, and the calculation efficiency is higher.…”
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  14. 734

    Research on optimal control strategy for electric braking performance of urban rail vehicles by LIU Donghui, ZHAO Leiting, WANG Yongxiang, LIU Kan

    Published 2024-03-01
    “…In the low-speed range of vehicle electric braking, a deceleration controller was designed to adjust the torque command value for motor braking in real-time. …”
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  15. 735

    A high robust control scheme of grid‐side converter for DFIG system by Shuqi Shi, Zongze Liu, Long Ren, Hongwei Tang, Dongran Song

    Published 2024-11-01
    “…To address this issue, a SOSMC scheme is proposed to replace the conventional proportional integral (PI) control for the DC‐link voltage controller of the GSC for the DFIG system in this study. …”
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  16. 736

    Variable Structure Control and Its Ground Experimental Test for the Space Station Robot by Feilong Zhang, Bi Zhang, Bing Han, Danyang Qu, Xingang Zhao

    Published 2022-01-01
    “…The key idea is gravity compensation included within the dynamic control algorithm of the robot to replace the function of the microgravity environment. …”
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  17. 737

    Control Allocation Strategy Based on Min–Max Optimization and Simple Neural Network by Kaixin Li, Mei Liu, Xinliang Li, Xiaobin Yu, Kun Liu

    Published 2025-05-01
    “…Additionally, an offline-trained neural network is employed to replace the online optimization process, enabling the complete controller to operate on the flight control board without relying on an onboard computer. …”
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  18. 738

    Isogeometric Analysis for Active Control of Piezoelectric Functionally Graded Plates in Thermal Environment by Tao Liu, Yafen Jiang, Shujun Li, Qingyun Liu, Chao Wang

    Published 2021-01-01
    “…Finally, the active control including static bending control and vibration control of piezoelectric functionally graded plates (PFGPs) is also investigated by using a displacement-velocity feedback control law.…”
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  19. 739
  20. 740

    Use of Asset Administration Shell for Monitoring and Control of Industrial Processes in Legacy Systems by Enrik Ramos Lima, Miguel Angel Orellana Postigo, Joao Victor Reis De Oliveira de Sicco, Raimundo Claudio Souza Gomes, Fabio De Sousa Cardoso, Israel Gondres Torne

    Published 2025-01-01
    “…However, it is some times necessary to replace legacy systems with those more suited to this new reality, which demands resources that, in the case of small and medium-sized enterprises, pose a challenge for this transition. …”
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