• Title/Summary/Keyword: Control Knowledge

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An Improved Domain-Knowledge-based Reinforcement Learning Algorithm

  • Jang, Si-Young;Suh, Il-Hong
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.1309-1314
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    • 2003
  • If an agent has a learning ability using previous knowledge, then it is expected that the agent can speed up learning by interacting with environment. In this paper, we present an improved reinforcement learning algorithm using domain knowledge which can be represented by problem-independent features and their classifiers. Here, neural networks are employed as knowledge classifiers. To show the validity of our proposed algorithm, computer simulations are illustrated, where navigation problem of a mobile robot and a micro aerial vehicle(MAV) are considered.

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Infection Control Knowledge and Standard Precaution Practice among Clinical Nurses in Small and Medium-sized Hospital (중소병원 임상간호사의 감염관리 지식과 표준주의 수행도)

  • Lee, Soon-Hee;Yang, In-Suk
    • Journal of Convergence for Information Technology
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    • v.12 no.2
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    • pp.107-115
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    • 2022
  • The purpose of this study was to investigate the level of infection control knowledge and standard precaution practice and to identify effecting factors on standard precaution practice among nurses in small and midium-sized hospitals. A cross-sectional study was conducted with a sample of 258 nurses from 7 hospitals between July and August 2021. The mean score of infection control knowledge and standard precaution practice was 7.25 and 3.61, respectively. There were significant differences in standard precaution practice according to clinical experience (r=.123, p=.047) and position (F=5.356, p=.005). Infection control knowledge and standard precaution practice were closely correlated (r=.421, p<.001). Position (β=-.187, p=.025) and infection control knowledge (β=.408, p<.001) had an effect on standard precaution practice. It could be possible to enhance the standard precaution practice through convergence education program related to infection control among staff nurses.

The Relationship between Workers' Knowledge Sharing Intention and Innovation Behavior in General Hospitals (종합병원 지식근로자의 지식공유 의도와 혁신행동 간의 관계)

  • Lee, Hyun-Sook
    • The Korean Journal of Health Service Management
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    • v.7 no.4
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    • pp.233-241
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    • 2013
  • The purpose of this study is to investigate factors affecting workers' knowledge sharing on knowledge sharing and innovation behavior in general hospitals. This study is based on factors of knowledge sharing such as incentives, reciprocal benefits, behavioral control, and subjective norm, CEO's support, rewards system, IT system, and trust. Data were assessed using 148 workers who work in 3 hospitals in Seoul, Kyunggi, Chunkcheong-do. Data were collected with self-administered questionnaires from April 1 to 31 in 2013 and analyzed SPSS 18 and SEM(structural equation modeling). The results of the study were as follows. First, knowledge sharing intention as well as innovation behavior was statistically significant in behavioral control and IT system. Second, knowledge sharing intention turned out to be positive effect for innovation behavior. This study identified a couple of factors affecting workers' knowledge sharing on knowledge sharing intention and innovation behavior. The the implications of these factors are discussed and areas for developing hospital's knowledge management strategies are fostered and knowledge sharing intention and innovation behavior.

Investigation of Weight Control and Nutritional Knowledge of Juvenile Delinquents (비행청소년의 체중조절과 영양지식에 관한 연구)

  • Lee, Jung-Suk;Kim, Seok-Hwan;Lee, Hyun-Ja;Lee, Chun-Bok;Song, Byeng-Chun;Kim, Eun-Kyung
    • Journal of the Korean Society of Food Culture
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    • v.24 no.1
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    • pp.96-105
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    • 2009
  • This study was conducted to identify the factors associated with weight control and nutritional knowledge of juvenile delinquents. The average heights of the subjects in this study were 172.20 cm (male) and 160.89 cm (female), and the average weights were 66.73 kg (male) and 58.42 kg (female), and the BMIs (Body Mass Index; $kg/m^2$) were 22.46 (male) and 22.54 (female). The results of this study revealed that 41.4% of the subjects were over weight or obese. In addition, there were significant differences in the BMI, satisfaction with body image and perception of body image observed between male and female subjects. Furthermore, female subjects were more experienced at weight control than male students (p<0.001). Additionally, overweight and obese individuals had more experience with weight control than subjects that were not overweight. Moreover, there were significant differences in the reason that subjects took weight control measured between male and female students. Specifically, female subjects practiced weight control due to their appearance (p<0.001). The order of methods by which male subjects attempted to control their weight was exercise>diet control>starvation and for girl student were diet control>starvation>excercise. The nutritional knowledge scores were higher for female subjects than for mele subjects. In addition, the nutritional knowledge scores increased as the BMI value increased and the $father^{\circ}{\emptyset}s$ educational level increased. These results of this study could be useful data to plan and develop nutritional education programs for juvenile delinquents.

A Study on the Design of Operation and Control Solution for IED based Digital Switchgear Panel (IED기반 디지털 수배전반의 운전제어 솔루션 설계)

  • Ko, Yun-Seok
    • Proceedings of the KIEE Conference
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    • 2006.07a
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    • pp.141-142
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    • 2006
  • In this paper, DSPOCS(Digital Switchgear Panel Operation and Control Solution) is designed, which is the intelligent inference operation and control solution of substation based on IED. DSPOCS is designed as a scheduled monitoring and control task and a real-time alarm inference task, and is interlinked with BRES in the required case. The intelligent alarm inference task consists of the alarm knowledge generation part and the real-time pattern matching part The alarm knowledge generation part generates automatically alarm knowledge from DB and saves it in alarm KB. On the other hand, the pattern matching part inferences the real-time event by comparing the real-time event information furnished from IEDs of substation with the patterns of the saved alarm knowledge base.

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A modelling methodology for robotic workcells through knowledge base

  • Kim, Dae-Won;Ko, Myoung-Sam;Lee, Bum-Hee
    • 제어로봇시스템학회:학술대회논문집
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    • 1989.10a
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    • pp.583-588
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    • 1989
  • In this paper, a modelling methodology for a robotic workcell is proposed and compared with the conventional Petri nets model. Also, a method for managing the cell operation is described through the knowledge base. The knowledge bases for state transition and assembly job information are obtained from the state transition map(STM) and the assembly job tree(AJT), respectively. Using the knowledge base, the system structure is discussed in both managing the cell operation and evaluating the various performance. Finally, a simulation algorithm is presented with the simulation results to show the effectiveness of the proposed modelling approach.

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Design of a knowledge-based controller for job scheduling in assembly (조립 작업에서의 생산계획 수립을 위한 지식베이스형 제어기의 설계)

  • 김성수;서기성;우광방
    • 제어로봇시스템학회:학술대회논문집
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    • 1990.10a
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    • pp.514-518
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    • 1990
  • This paper describes an experimental Knowledge-Based Control System, named KBCS, for manufacturing and assembly. The KBCS of five parts and function : data-base, knowledge acquisition, optimization, and graphic monitoring. The KBCS is utilized for a FMS which is of five machine centers and automatic assembly lines. Each machine can perform almost all manufacturing functions which some difference in efficiency. Buffers store temporarily the incoming components and the outing components. Parts arrive at assembly lines after many steps of manufacturing, and the transfer path and time are determined by procedural knowledge of control systems. Nine different incoming components are set up. The total control system is expected to perform four algorithms, timing algorithm ,sequencing algorithm, penalty algorithm, and cart algorithm. The construction of controller require basic components of manufacturing systems in which knowledges are formulated on the base of the results and the repeated simulation of KBCS with graphic monitoring system. Simulation results by KBCS are compared with those by the other rules of manufacturing.

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Effects of Interactive Pictorial Education on Community Dwelling Older Adult's Self Efficacy and Knowledge for Safe Medication

  • Park, Myong-Hwa
    • Journal of Korean Academy of Nursing
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    • v.41 no.6
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    • pp.795-804
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    • 2011
  • Purpose: The purpose of this study was to examine the effects of interactive pictorial education on community dwelling older Korean adults' self-efficacy and knowledge for safe medication. Methods: A quasi-experimental, three-group pre- and post-intervention design was used in this study. The interactive pictorial education was designed to suit the learning patterns and psychomotor skills of older adults. The education content, dealing with safe medication, was delivered over three sessions. A total of 136 older adults from local senior centers were assigned to one of the three groups: a) interactive pictorial education plus information booklet (experimental); b) education only with information booklet (conventional); or c) no intervention (control). Results: Participants receiving interactive pictorial education had significantly higher self-efficacy (F=24.32, p<.001) and knowledge (F=24.26, p<.001) scores than the information booklet or control group at post intervention. Post-hoc analyses indicated that both the interactive pictorial and the information booklet groups had significantly higher self-efficacy and knowledge scores than the control group at the post-test point (p<.05). Furthermore, the interactive pictorial group had higher self-efficacy and knowledge scores than the information booklet group at the post-test point (p<.05). Conclusion: These results suggest that the interactive pictorial education is an innovative approach that provides a means for older adults to learn appropriate medication use to improve their own health. It empowers older adults with different literacy levels to enhance their self-efficacy and knowledge for the safe use of medication.

Effects of Menstrual Self-management Education Program on Knowledge and Behavior of Menstrual Self-management in High School Girls (여자고등학생의 월경기 자가관리 교육 프로그램의 효과)

  • Min, Jeonghye;Ahn, Sukhee
    • Women's Health Nursing
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    • v.24 no.3
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    • pp.310-321
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    • 2018
  • Purpose: To examine the effect of menstrual self-management education program on knowledge and behavior of menstrual self-management in high school girls. Methods: With a randomized controlled trial, 100 high school girl students were randomly assigned into experimental group and control group. Menstruation self-management program was consisted of a total of four sessions of education program (1 hour of education per session). Control group only received the first class of education. Measurement tools were 20-item menstrual knowledge scale and 12-item women's genito-urinary hygiene scale. Pretest and post-test questionnaires were administered. Results: There were significant differences in menstrual knowledge as well as menstrual self-management behavior between the two groups. The experimental group showed significant improvement in both menstrual knowledge score (t=13.37, p<.001) and menstrual self-management behavior score (t=8.38, p<.001) than the control group. Conclusion: Results of this study suggest that the monthly self-management education program is effective in increasing the knowledge of menstruation of female high school students and enhancing their performance. This program needs to be implemented as a part of high school's standard sex education. Further study is needed to analyze follow-up effects of the program on self-management behavior of students after at least one menstrual cycle.

The Effects of an Education Program on the Knowledge of Medication and Prevention of Depression in the Elderly with Chronic Disease at a Local Community (지역사회 만성질환노인의 약물사용과 우울예방 교육 프로그램 효과)

  • Kim, Yeong-Ju
    • Research in Community and Public Health Nursing
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    • v.22 no.4
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    • pp.399-408
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    • 2011
  • Purpose: This study was conducted to evaluate the effects of an education program on the knowledge of medication and prevention of depression in the elderly at a local community. Methods: This study utilized the nonequivalent control group pretest-posttest design. Thirty consecutive people were included in this study for the experimental group, and another 30 people were allocated to the control group. The program was performed once a week for 3 weeks. Data were collected from March 15 to April 30, 2010 and statistical analyses were performed by ${\chi}^2$-test and independent t-test using the SPSS/WIN 12.0 program. Results: There were statistically significant differences in the knowledge of medication, depression and medication compliance between the experimental and control groups. Conclusion: This study demonstrated that an education program for the knowledge of medication and prevention of depression in the elderly with chronic disease could improve their knowledge of medication and their medication compliance, and decrease their depression. These results suggest that education of knowledge with social psychology can be an effective and practical method of management to the elderly with chronic disease at local communities.