• Korean Journal of Adult Nursing
• /
• v.24 no.1
• /
• pp.74-84
• /
• 2012

Purpose: This study was designed to identify knowledge and performance level of infection control among oriental medical doctors and nurses and further to identify factors that may influence practice. Methods: Data were collected using the survey method. Two hundred and forty two healthcare workers (HCW) from five oriental medicine university hospitals in Korea (140 physicians and 102 nurses) completed a survey about infection control. The study was conducted from February 1 to 28, 2011. Results: The average knowledge level of infection control among HCW was $0.75{\pm}0.13$ (score range 0~1) and the average performance level of infection control was $3.16{\pm}1.05$ (score range 0~5). 'Disinfection and sterilization' were ranked the highest in both the knowledge and performance level. In the knowledge level, 'hand washing/hand hygiene' were ranked the lowest. 'Bloodstream infection prevention' was the lowest among the infection control categories in performance. Total average knowledge and performance level of nurses was significantly higher than that of the physicians. Conclusion: This study demonstrated the oriental medical doctors and nurses' knowledge and performance level of infection control differed. The education on infection control is required to oriental medical doctors and nurses and it would contribute to preventing healthcare associated infections in oriental medicine hospitals.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.20 no.2
• /
• pp.352-357
• /
• 2006

This experimental study was designed to investigate the effects of Acanthopanax sessiliflorus $S_{EEM}$ leaves, stems, roots (ACL, ACS, ACR) on the change of weight and the serum total cholesterol, HDL-cholesterol, LDL-cholesterol, triglyceride, free fatty acid, total lipid and phospholipid level in obese mice induced Dy high fat diet. Experimental groups were as follows ; Normal group was fed with normal diet and administered with distilled water during 7 weeks, Control group was fed with high fat diet and administered with distilled water during 7 weeks, Sample A group was fed with high fat diet and administered with ACL of 500 mg/kg/mouse/day during 7 weeks, Sample B group was fed with high fat diet and administered with ACS of 500 mg/kg/mouse/day during 7 weeks, Sample C group was fed with high fat diet and administered with ACR of 500 mg/kg/mouse/day during 7 weeks. The results were as follows ; 1. Sample A group, Sample B group and Sample C group were significantly decreased the serum total lipid level in comparison with Control group. 2. Sample A group was decreased the body weight (4 weeks, 7 weeks), the serum total cholesterol level, the serum LDL-cholesterol level, the serum triglyceride level, the serum free fatty acid and phospholipid level but increased the serum HDL-cholesterol level in comparison with Control group. 3. Sample B group was increased the serum HDL-cholesterol level but decreased the body weight (4weeks), the serum total cholesterol level, the serum free fatty acid and triglyceride level in comparison with Control group. 4. Sample B group was significantly decreased the body weight (7 weeks), the serum LDL-cholesterol and phospholipid level in comparison with Control group. 5. Sample C group was increased the serum HDL-cholesterol level but decreased the body weight (4 weeks) and the serum free fatty acid level in comparison with Control group. 6. Sample C group was significantly decreased the body weight (7 weeks), the serum total cholesterol level, the serum LDL-cholesterol and triglyceride level in comparison with Control group. According to above results, I suggest ACR is able to be used for the obesity.

• Journal of the Korean Society of Industry Convergence
• /
• v.19 no.4
• /
• pp.193-197
• /
• 2016

There are many hoppers in the actual industrial plants such as grain hoppers in agricultural companies, surge hoppers in steel companies, and so on. In general, they are time-delay systems so that their level control is not easy. Thus, they have been manually controlled to avoid the overflow and empty out. In this paper, we proposed Fuzzy PID controller for level control of hopper systems. To show the effectiveness of the proposed scheme, some simulation results are given.

• ETRI Journal
• /
• v.30 no.2
• /
• pp.205-215
• /
• 2008

Many control schemes have been proposed for flow-level traffic control. However, flow-level traffic control is implemented only in limited areas such as traffic monitoring and traffic control at edge nodes. No clear solution for end-to-end architecture has been proposed. Scalability and the lack of a business model are major problems for deploying end-to-end flow-level control architecture. This paper introduces an end-to-end transport architecture and a scalable control mechanism to support the various flow-level QoS requests from applications.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2005.06a
• /
• pp.240-245
• /
• 2005

In order to implement nano-level accuracy of precision equipments, a nano control system is one of the key components. The control system consists of a controller, actuators and sensors having nano-level resolution. In this paper, application area and technical trend on the nano control system are introduced. Some required techniques for realizing nano-level resolution of a controller or actuator are presented. Technical innovation of a control system by IT-fusion and its effect are also described. Finally, domestic research activities for development of the IT-based nano control system are introduced.

• Journal of Mechanical Science and Technology
• /
• v.14 no.6
• /
• pp.645-654
• /
• 2000

In this paper, low level control algorithms of a metal belt CVT are suggested. A feedforward PID control algorithm is adopted for line pressure based on a steady state relationship between the input duty and the line pressure. Experimental results show that feedforward PID control of the line pressure guarantees a fast response while reducing the pressure undershoot which may result in belt slip. For ratio control, a fuzzy logic is suggested by considering the CVT shift dynamics and on-off characteristics of the ratio control valve. It is found from experimental results that a desired speed ratio can be achieved at steady state in spite of the fluctuating primary pressure. It is expected that the low level control algorithms for the line pressure and speed ratio suggested in this study can be implemented in a prototype CVT.

• Journal of Korean Biological Nursing Science
• /
• v.14 no.1
• /
• pp.8-15
• /
• 2012

Purpose: This study was undertaken to identify the knowledge and compliance level of nursing students. It was based on self-administered questionnaires about multidrug-resistant organisms (MDROs). Methods: The test group was 184 nursing students who had contact with MDROs during clinical practice. The study was conducted from May 1 to September 16, 2011. Results: The average knowledge level of MDROs was 16.20 (correct answer rate: 67.5%). The nurses' compliance level of MDROs infection control was on average 40.50 (range: 13-52). "Hand hygiene" ranked highest in the compliance level of MDROs infection control. The lowest level of MDRO infection control was the wearing of disposable aprons or gowns. Conclusion: This study demonstrated the nursing students' knowledge and the compliance level of infection control. We suggest that nursing students receive mandated systematic education of MDROs in the nursing curriculum. And clinical practice experience of MDROs infection control is required in hospitals. These steps will help prevent transmission of MDROs in nursing settings.

• Journal of Preventive Medicine and Public Health
• /
• v.31 no.2 s.61
• /
• pp.199-214
• /
• 1998

This study was undertaken to explain weight control behavior and intention of obese children and adolescents as measured by the elements of the health belief model. A total of 732 obese students from 28 schools in Seoul metropolitan area and their mothers were assessed with a self-administered questionnaire. The analyzed results are as follows; 1. Among obese students, 45.3% of male students and 57.2% of female students, a significantly higher portion than male students, reported that they had tried to lose weight within the recent year. Exercise was the most frequently used method to lose weight followed by diet control, drug use, and specialized clinic visits, in descending order. 2. Male students were more likely to try to lose weight if they perceived a low threat level and their mother had a job, and female students were more likely to try to lose weight if they were younger in age, perceived a low threat level and had strong external motivating factors. 3. Female students showed a significantly higher level of intention to obesity control than male students, and the intention level of their mothers also showed the same trend. 4. In male students, the degree of weight dissatisfaction, weight control experience, the level of obesity related beliefs of students, the educational level of the mother and economic status of the family were significant predictors of intention to obesity control, and in females, age, the level of obesity related beliefs of students and intention of their mothers were significant. In the mothers of male students, obesity index of students, age of the mother and the level of obesity related beliefs of the mother were significant predictors of intention of the mother, and in the mothers of female students, obesity index of students, occupational status of the mother and obesity related beliefs of the mother were significant. 5. According to the path model of intention to obesity control, the degree of weight dissatisfaction had the most powerful effect in male students, and perceived net benefit level was the most important variable in female students. Since the weight control behavior and intention of obese students were more predictable by the degree of weight dissatisfaction than the obesity index, we can conclude that only the students dissatisfied with their weight are well motivated for obesity control. There can be a discrepancy between the mother and her child's beliefs and intention status(especially in male students), so the therapists should also assess the student's opinion as well as the mother's. In female students, the perceived net benefit level wag the most important predictor of intention to obesity control, therefore the intervention program should pay particular attention to the positive benefits of weight control rather than negative aspects(threats) of obesity.

• The Journal of Korean Medicine
• /
• v.21 no.1
• /
• pp.3-10
• /
• 2000

We experimented with several prescriptions in order to find cure and prevention effects for obesity. We fed control group rats a high fat diet and adiministered normal saline for 8weeks. We fed experimental group rats a high fat diet and administered extract of four prescriptions for 8weeks. The results were as follows; 1. The serum total cholesterol level in Bikam-whan and Chekamhanghyuluiyiin-tang group showed a significant decrease in comparison with Control group. 2. The serum triglyceride level in Bikam-whan, Chekamhanghyuluiyiin-tang and Chekambangpungtongseong-san group showed a significant decrease in comparison with Control group. 3. The serum free fatty acid level in Chekamhanghyuluiyiin-tang and Chekambohyulansin-tang group showed a significant decrease in comparison with Control group. 4. The serum total lipid level in Bikam-whan, Chekamhanghyuluiyiin-tang and Chekambohyulansin-tang group showed a significant decrease in comparison with Control group. 5. The serum phospholipid level in Bikam-whan and Chekamhanghyuluiyiin-tang group showed a significant decrease in comparison with Control group. 6. The serum glucose level in Bikam-whan and Chekamhanghyuluiyiin-tang group showed a significant decrease in comparison with Control group. According to the above results, Bikam-whan and Chekamhanghyuluiyiin-tang has shown to be capable of curing and preventing obesty.

• Journal of the Institute of Electronics Engineers of Korea TE
• /
• v.39 no.3
• /
• pp.90-96
• /
• 2002

RBAC(Role-Based Access Control) is an access control method based on the user's role and it provides more flexibility on the various computer and network security fields. But, RBAC models consider only users for roles or permissions, so for the purpose of exact access control within real application systems, it is necessary to consider additional subjects and objects. In this paper, we propose an Extended RBAC model, $ERBAC_3$, for access control of multi-level security system by adding users, subjects, objects and roles level to RBAC, which enables multi-level security control.