• East Asian mathematical journal
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• v.39 no.2
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• pp.199-227
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• 2023

The Korean government initiated an educational policy regulating academic acceleration in schools (e.g., regulating teaching or assessing above-grade-level content) in order to normalize public education and prevent the growth of private tutoring. To analyze whether the policy is achieving its intended goals, this study examined how high school mathematics teachers responded to the policy. The findings indicate four distinct teacher responses: the teachers would teach above-grade-level lessons in classes, but not assess them on a test; the teachers sought academic acceleration to prevent excessive private tutoring, although the policymakers thought that teachers' academic acceleration results in an excessive demand for private tutoring; the teachers were willing to teach above-grade-level content for students, but they were reluctant to teach below-grade-level content due to the time constraints; and the teachers recognized that the policy limited their curricular autonomy, even though it was intended to ensure their autonomy. Implications for mathematics teacher educators and policymakers are discussed.

• Fire Science and Engineering
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• v.17 no.3
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• pp.31-44
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• 2003

In the Local Autonomy Law, we regard the fire-fighting service as inherent service for the local government. However, if we look into the course of the charge of fire-fighting service, after the transfer of this from the police service, or the state, to the local service in 1991, this is now taking a firm hold as service of the local government. what we call the local services includes the business about the welfare of the residents and that of taking in charge of the resident properties, proclaimed in the Constitution. That is to say, the basic purpose of the local autonomy is to make the residents feel the most convenient and safe, and this is the mission of the present-day local autonomy. Looking from this point of view, if we consider that the ultimate purpose of fire-fighting is promoting the welfare of the residents by preventing and putting out fires and, in the time of emergency, carrying out rescue and relief operations, and furthermore, maintaining the safety and order of a society, until present time the benefits of fire-fighting business were mainly available to the residents of the cities. In order to break from these thoughts, according to the result of comparing and analyzing the metropolitan city, surrounding rural areas, middle and small cities and typical rural areas, the rural areas are urgently demanding fire-fighting service, so it is being proved that it is necessary to install the offices in these areas. Therefore, the installation of the fire-fighting offices in the counties that are the basic units of the primary local autonomy and are rural areas should be expanded as part of the welfare administration.

• The Journal of Society for e-Business Studies
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• v.25 no.1
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• pp.45-64
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• 2020

In the rapidly changing business environments, Internet companies have the characteristics of organizational culture that emphasize the flexible, open and autonomous nature of organizational culture, and are transforming into flexible smart working environment that is independent of time and place. Despite such an Internet business environment, the security management system still fails to reflect the business environment and organizational culture of the Internet company, and the control-focused security management system in the Internet company is facing limitations. Therefore, this study designed and developed Corporate members' autonomy-centered security items that considering the characteristics of the business environment and organizational culture of the Internet company. The results of this study are expected to be used to implement and operate corporate members' autonomy-centered security management system in internet companies with an agile business environment and an autonomous organizational culture.

• Journal of the Korea Convergence Society
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• v.6 no.4
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• pp.15-23
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• 2015

The purpose of this study is to investigate how the impact on the basic psychological needs and emotional and motor sports commitment to participate in 12 weeks of Physically Disabled wheelchair tennis class. Results: First, the basic psychological needs is a difference between groups was found in the autonomy and the relationship of the sub-factors autonomy, competence, was the difference in time measured between the castle. Second, the movement was born immersed in the measuring point to see a difference in cognitive involvement and engagement of sub-behavior factors, the mutual effects were measured at the time of the two groups and sub-factors. Third, the movement was born in sentiment appears to have overlooked the measurement point in the sub-group differences in factors such as positive emotions and negative emotions, collective and cross effects were measured at the time of the two sub-factors. Subsequent studies in qualitative research, as well as be able to induce a more active ongoing participation of the disabled being difficult to draw parallel with the subjective experience of people with disabilities, it is thought to be possible to develop a variety of programs.

• Journal of Satellite, Information and Communications
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• v.11 no.3
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• pp.51-57
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• 2016

Many kinds of telemetry should be monitored to check the state of spacecraft and it leads the time consumption. However, it is very important to define the status of satellite in short time because the contact number and time of low earth orbit satellite is limited. Also, on-board fault management should be prepared for non-contact operation because of the sever space environment. In this paper, on-board and ground autonomous operation method for the safety enhancement is described. Immediate fault detection and response is possible in ground by explicit anomaly detection through satellite event and error information. Also, satellite operation assistant system is proposed for ground autonomy that collect event sequence in accordance with related telemetry and recommend or execute an appropriate action for abnormal state. Critical parameter monitoring method with checking rate, mode and threshold is developed for on-board autonomous fault management. If the value exceeds the limit, pre-defined command sequence is executed.

• Smart Structures and Systems
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• v.8 no.1
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• pp.39-52
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• 2011

We are developing a biomimetic robot based on the Sea Lamprey. The robot consists of a cylindrical electronics bay propelled by an undulatory body axis. Shape memory alloy (SMA) actuators generate propagating flexion waves in five undulatory segments of a polyurethane strip. The behavior of the robot is controlled by an electronic nervous system (ENS) composed of networks of discrete-time map-based neurons and synapses that execute on a digital signal processing chip. Motor neuron action potentials gate power transistors that apply current to the SMA actuators. The ENS consists of a set of segmental central pattern generators (CPGs), modulated by layered command and coordinating neuron networks, that integrate input from exteroceptive sensors including a compass, accelerometers, inclinometers and a short baseline sonar array (SBA). The CPGs instantiate the 3-element hemi-segmental network model established from physiological studies. Anterior and posterior propagating pathways between CPGs mediate intersegmental coordination to generate flexion waves for forward and backward swimming. The command network mediates layered exteroceptive reflexes for homing, primary orientation, and impediment compensation. The SBA allows homing on a sonar beacon by indicating deviations in azimuth and inclination. Inclinometers actuate a bending segment between the hull and undulator to allow climb and dive. Accelerometers can distinguish collisions from impediment to allow compensatory reflexes. Modulatory commands mediate speed control and turning. A SBA communications interface is being developed to allow supervised reactive autonomy.

• The Journal of Korean Academic Society of Nursing Education
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• v.15 no.1
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• pp.72-80
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• 2009

Purpose: This study was designed to identify the prediction factors that influence nurses' organizational commitment. Method: The sample of this study consisted of 526 full-time nurses randomly picked at 19 general hospitals in Korea. The data was analyzed by computer using SPSS 15.0 for Pearson's correlation coefficient, and multiple regression analysis. Result: 1) According to general characteristics, nurses' organizational commitment levels among the sample were significantly different in age, religion, social status, marital status, clinical career, and department satisfaction. 2) Level of nurses' organizational commitment was average 2.70, job satisfaction 2.91, burnout 3.03, empowerment 3.36, autonomy 2.93, and self-efficacy 3.51. 3) Nurses' organizational commitment had significant positive correlations with job satisfaction, empowerment, self-regulation, social support, self-efficacy, clinical career, and personnel movement experience. On the other hand, it had significant negative correlations with occupational stress, burnout, and age. 4) The prediction factors which influence Nurses' organizational commitment were job satisfaction($\beta$=.405), burnout($\beta$=-.282), self-regulation($\beta$=.171), clinical career($\beta$=.135). These factors were approximately 49.6% reliable in explaining nurses' organizational commitment. Conclusion: These results can be used to develop hospitals' management strategies for increasing organizational commitment effectiveness and nursing productivity.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.33 no.4
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• pp.290-297
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• 1997

Underwater robotic vehicles(URVs) are used for various work assignments such as pipe-lining, inspection, data collection, drill support, hydrography mapping, construction, maintenance and repairing of undersea equipment, etc. As the use of such vehicles increases the development of vehicles having greater autonomy becomes highly desirable. The vehicle control system is one of the most critic vehicle subsystems to increase autonomy of the vehicle. The vehicle dynamics is nonlinear and time-varying. Hydrodynamic coefficients are often difficult to accurately estimate. It was also observed by experiments that the effect of electrically powered thruster dynamics on the vehicle become significant at low speed or stationkeeping. The conventional linear controller with fixed gains based on the simplified vehicle dynamics, such as PID, may not be able to handle these properties and result in poor performance. Therefore, it is desirable to have a control system with the capability of learning and adapting to the changes in the vehicle dynamics and operating parameters and providing desired performance. This paper presents an adaptive and learning control system which estimates a new set of parameters defined as combinations of unknown bounded constants of system parameter matrices, rather than system parameters. The control system is described with the proof of stability and the effect of unmodeled thruster dynamics on a single thruster vehicle system is also investigated.

• Safety and Health at Work
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• v.1 no.2
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• pp.158-166
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• 2010

Objectives: This study aimed to find gender distinctions in terms of the sociology of the population; to determine work-related factors; to analyze gender differences in daily living, work, sports, and art performances; and to identify gender-related factors that limited performance of daily living and work activities. Methods: A questionnaire was designed that included disabilities of the arm, shoulder, and hand (DASH), accident history, disease history, work duration at current workplace, marital status, job satisfaction, job autonomy, and physical demands of the job. Out of 1,853 workers surveyed, 1,173 questionnaires (63.3%; 987 males, 186 females) included responses to DASH disability and DASH optional work and were judged acceptable for analysis. Results: Upper extremity functional limitation during work and daily living was higher for females than males. The limitations for males increased according to their household work time, accident history, work duration, job satisfaction, physical demand, and job autonomy. Meanwhile, female workers' upper extremity discomfort was influenced by their disease history, job satisfaction, and physical demands. In addition, the size of the company affected male workers' upper extremity function, while marriage and hobbies influenced that of female workers. Conclusion: This study addressed sociodemographic factors and work-related factors that affect each gender's upper extremity function during daily living and working activities. Each factor had a different influence. Further studies are needed to identify the effect that role changes, not being influenced by risks at work, have on musculoskeletal disorders.

• The KIPS Transactions:PartB
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• v.13B no.2 s.105
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• pp.179-186
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• 2006

A user interface that connects a user to intelligent robots needs to be designed for executing them efficiently. In this paper, it is analyzed how to organize a mobile terminal based user interface according to the function and level of autonomy of intelligent robots and the user interface of PDA (Personal Digital Assistant) and smart phone is developed for controlling intelligent robots remotely. In the image-based user interface, a user can see the motion of a robot directly and control the robot. In the map-based interface, the quantity of transmission information is reduced and therefore a user can control the robot with a small delay of transmission time.