scholarly journals Study on Magnetic Control Systems of Micro-Robots

2021 ◽  
Vol 15 ◽  
Author(s):  
Youjia Shao ◽  
Ashraf Fahmy ◽  
Ming Li ◽  
Chunxu Li ◽  
Wencang Zhao ◽  
...  
Keyword(s):  
Control System ◽  
Medical Treatment ◽  
Permanent Magnet ◽  
Control Systems ◽  
Medical Services ◽  
Magnetic Control ◽  
Open Problems ◽  
The Past ◽  
Micro Robot

Magnetic control systems of micro-robots have recently blossomed as one of the most thrilling areas in the field of medical treatment. For the sake of learning how to apply relevant technologies in medical services, we systematically review pioneering works published in the past and divide magnetic control systems into three categories: stationary electromagnet control systems, permanent magnet control systems and mobile electromagnet control systems. Based on this, we ulteriorly analyze and illustrate their respective strengths and weaknesses. Furthermore, aiming at surmounting the instability of magnetic control system, we utilize SolidWorks2020 software to partially modify the SAMM system to make its final overall thickness attain 111 mm, which is capable to control and observe the motion of the micro-robot under the microscope system in an even better fashion. Ultimately, we emphasize the challenges and open problems that urgently need to be settled, and summarize the direction of development in this field, which plays a momentous role in the wide and safe application of magnetic control systems of micro-robots in clinic.

A wall-climbing robot for labelling scale of oil tank's volume

Robotica ◽  
2002 ◽  
Vol 20 (2) ◽  
pp. 209-212 ◽  
Author(s):  
Zeliang Xu ◽  
Peisun Ma
Keyword(s):  
Control System ◽  
Permanent Magnet ◽  
Control Systems ◽  
Computer Control ◽  
Wall Surface ◽  
Climbing Robot ◽  
Processing Data ◽  
Oil Tank

A Wall-Climbing Robot (WCR) with magnetic tracks is presented in this paper. The robot is designed for labeling the scale of oil tank.5 The Wall-Climbing Robot (WCR) uses a permanent magnet sucker as its sucking mode, and a track as its moving mode. We designed an elastic brace mechanism, a load-scatter mechanism and parallelogram mechanism to improve the robot's adaptability on the steel wall surface. The control system utilizes two-level computer control systems, achieving control of the robot's moving track and processing data collected by the robot.

Logistics control enabled by IT – a window in the future

1998 ◽  
Vol 17 (2) ◽  
pp. 123-133
Author(s):  
M.J. Euwe ◽  
J.C. Wortmann
Keyword(s):  
Control System ◽  
Control Systems ◽  
Decentralized Control ◽  
Integral Approach ◽  
Centralized Control ◽  
Production Chain ◽  
The Past ◽  
Control Concept ◽  
Customer Control ◽  
Expected Benefits

When we look at historic developments in logistics organization and control concepts, we can conclude that the past shows an ongoing trend towards a more integral approach to achieve logistical coordination. The decentralized reorder point techniques used in the fifties gradually changed from MRP-I (sixties, seventies) to MRP-II (eighties, nineties). This trend is now extending beyond the walls of an individual factory. Companies feel a need to cooperate in the areas of logistics structures, forecasting, master scheduling and ordering. When we look to this integration challenge we can conclude that a different approach than used in the past is necessary. Since implementing a centralized control concept across companies is not possible, new developments are required in the area of decentralized control. We foresee that future control systems are able to communicate with supplier and customer control systems. Furthermore, we expect that these developments will also influence the setup of decentralized control systems within the company. Instead of having one control system with a scope that covers the entire production chain within the company, we will see a more modular approach where each sub control system covers only a part of the production system, e.g., a department. The expected benefits of this approach is that such an architecture provides departments with better opportunities to incorporate their specific planning requirements in the control system.

Pengaruh Sistem Pengendalian Internal Pemerintah dan Kompetensi Pegawai Terhadap Kinerja Instansi Pemerintah Kabupaten Karimun

2020 ◽  
Vol 5 (1) ◽  
pp. 101-106
Author(s):  
Doni Putra Utama
Keyword(s):  
Control System ◽  
Control Systems ◽  
Internal Control ◽  
Statistical Tests ◽  
Government Agencies ◽  
Government Performance ◽  
Significant Positive Effect ◽  
Internal Control System ◽  
Employee Competencies ◽  
Positive Effect

This research is a causality study with the title "Effect of Government Internal Control Systems and Employee Competence on the Performance of Government Agencies in Karimun Regency." The purpose of this study was to determine the effect of the implementation of the Government's Internal Control System on the performance of Karimun Regency government agencies and to determine the effect of employee competence on the performance of Karimun Regency government agencies. Data collection using a questionnaire where the questionnaire contained questions about the Government's Internal Control System, employee competencies and agency performance. Data were tested using multiple linear regression statistical tests. Based on the results of the study, it can be concluded that the governmental internal control system has a significant positive effect on Government Agency Performance with the results of statistical tests that show a sig value of 0.016 <0.05 (alpha 5%). Employee Competency has a significant positive effect on Government Performance with the results of statistical tests showing a sig value of 0,000.

It’s Time to Talk to Prehospital Providers: Feedback Disparities among Ground-Based Emergency Medical Services Providers and its Impact on Job Satisfaction

2021 ◽  
pp. 1-9
Author(s):  
Sarayna S. McGuire ◽  
Anuradha Luke ◽  
Aaron B. Klassen ◽  
Lucas A. Myers ◽  
Aidan F. Mullan ◽  
...  
Keyword(s):  
Job Satisfaction ◽  
Patient Care ◽  
Emergency Medical Services ◽  
Performance Feedback ◽  
Life Support ◽  
Clinical Care ◽  
Medical Services ◽  
The Past ◽  
Emergency Medical ◽  
Overall Job Satisfaction

Abstract Objective: Performance feedback on clinical care and patient outcomes is a cornerstone of medical education, yet it remains lacking in the prehospital environment. Research seeking to establish the quantity of feedback provided to Emergency Medical Services (EMS) has been limited and studies focused on complimentary feedback or how feedback relates to EMS job satisfaction are lacking. The objectives of this study were to measure the frequency and nature of feedback received by EMS agencies and to identify the importance of receiving feedback as it relates to EMS job satisfaction. Methods: This was an anonymous, survey-based study of twenty-nine Basic Life Support (BLS) and fifteen Advanced Life Support (ALS) agencies located in Southeastern Minnesota (USA). Descriptive statistics and Fisher exact tests were used. The study was deemed exempt by the Mayo Clinic Institutional Review Board. Results: Ninety-four responses were included from nineteen different EMS agencies, including sixty-one (64.9%) paramedics and thirty-three (35.1%) emergency medical technicians (EMTs). One-half of all respondents reported that they had not received any type of feedback in the past 30 days, while another 43.6% of respondents indicated that they had only received feedback one to three times in the same time period. Twenty (60.6%) EMTs reported receiving no feedback in the past 30 days, compared with twenty-seven (44.3%) paramedics (P = .123). Of respondents receiving feedback, 65.9% reported never or rarely receiving positive reinforcing feedback and 60.6% reported never or rarely receiving constructive criticism or feedback regarding something that did not go well with patient care or transport. The majority of respondents were dissatisfied with the quantity (86.1%) and quality (73.4%) of feedback received. An overwhelming majority (93.6%) indicated that feedback on patient care or outcomes was important in influencing their overall job satisfaction. This high importance was maintained across all demographic groups. Conclusion: Within the cohort of survey respondents, a paucity of feedback received by EMS personnel is a source of dissatisfaction for EMS providers. Feedback on patient care strongly relates to overall job satisfaction. These findings suggest system-wide opportunities for structured feedback processes, focusing upon both quality and quantity of delivered feedback, to improve both patient care and staff satisfaction.

scholarly journals Coordination of Lateral Vehicle Control Systems Using Learning-Based Strategies

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1291
Author(s):  
Balázs Németh
Keyword(s):  
Control System ◽  
Control Systems ◽  
Coordinated Control ◽  
Front Wheel ◽  
Steering Angle ◽  
Conventional Model ◽  
Linear Parameter Varying ◽  
Coordination Strategy ◽  
Torque Vectoring ◽  
Performance Specifications

The paper proposes a novel learning-based coordination strategy for lateral control systems of automated vehicles. The motivation of the research is to improve the performance level of the coordinated system compared to the conventional model-based reconfigurable solutions. During vehicle maneuvers, the coordinated control system provides torque vectoring and front-wheel steering angle in order to guarantee the various lateral dynamical performances. The performance specifications are guaranteed on two levels, i.e., primary performances are guaranteed by Linear Parameter Varying (LPV) controllers, while secondary performances (e.g., economy and comfort) are maintained by a reinforcement-learning-based (RL) controller. The coordination of the control systems is carried out by a supervisor. The effectiveness of the proposed coordinated control system is illustrated through high velocity vehicle maneuvers.

The Control of the Eye's Intrinsic Muscles: A Multivariable Optimum Performance Control System

1968 ◽  
Vol 1 (8) ◽  
pp. T.129-T.132 ◽  
Author(s):  
F. M. Toates
Keyword(s):  
Control System ◽  
Control Systems ◽  
Pupil Diameter ◽  
Control Model ◽  
Point Of View ◽  
Theoretical Point ◽  
Pupil Control ◽  
Performance Control ◽  
A Value ◽  
Intrinsic Muscles

The reciprocal interaction between the accommodation and pupil control systems of the human eye is examined from a theoretical point of view. The system, which is responsible for maintaining pupil diameter at a value which is a compromise between conflicting requirements, is represented by a control model, and is considered in terms of the concept of a performance index.

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