Proceedings of the Korean Society of Precision Engineering Conference
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2003.06a
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pp.1458-1462
/
2003
High temperature and high pressure heavy water flows through the pipes in atomic power plants. The curved parts of pipes are critical parts in that they change the direction of steam flow, and these parts are especially affected by severe wear. Therefore, most pipes in atomic power plants are tested by non-destructive examination by workers who use ultrasonic sensors to measure the wall thickness of pipes. But not only are these pipes located in a very dangerous environment, but the space is also very limited. For the safety of workers, it is necessary to design a device that uses a mobile robot that can inspect curved pipes. This paper presents the design and construction of a small device that can generate the necessary contact forces between ultrasonic sensors and pipe walls in a limited space. And a mobile robot is used in place ortho worker for successful non-destructive examination.
The purpose of the study was to improve of performance for Magnetic Resonance Imaging (MRI) examination in the department of radiology. It was performed DMAIC (Define, Measure, Analyze, Improve, and Control). In the stage of definition, The fifth kinds of CTQ (critical to quality) by the kindness, the waiting time, the examination explanation, the waiting time and the waiting environment were selected by voice of customer. In the stage of measurement, the performed examinations and the reservation waiting time were measured each 1.77 and 1.69 sigma. In the stage of analysis, the potential key causes were determined the limited working hours and the difference of examination time of various entries. In the stage of improvement, MRI were performed with the operating system of 24 hours examination and the optimization of the difference of examination time by among of 30 minutes, 40 minutes, 50 minutes. Finally, the number of examinations and reserved waiting days were measured by each 3.17 and 1.71 sigma in the control stage.
Purpose: This study was a secondary data analysis aimed at identifying the predictors of health-related quality of life (HRQoL) of the home-dwelling disabled person by using EQ-5D which is a standardized instrument used as a measure of health outcome. Methods: Data were drawn from the 3rd Korea National Health and Nutritional Examination Survey conducted by the Ministry of Health and Welfare (MOHW). Subjects were 1,021 home-dwelling disabled persons over 19 years of age. Data were analyzed by using descriptive statistics, t-test, Pearson's correlation, one-way ANOVA, Scheff$\acute{e}$ test, and Stepwise multiple regression. Results: HRQoL (Health Related Quality of Life) is differentiated within age, genders, educational level, employment status, economic status, types and grades of disability, health problems associated with limited mobility, and the limited duration of time. HRQoL is correlated with age, number of cohabiters, educational level, grades of disability, activities of daily living (ADL), and instrumental ADL (IADL). HRQoL is significantly associated with ADL, health problems in connection with limited mobility, employment status, types of disability, marital status, grades of disability, and the limited duration of time. These factors explained 63.7% of variance in HRQoL. Conclusion: HRQoL among the disabled is related to their characteristics, ADL, and IADL. For this reason, it is necessary to develop health programs to promote those variables required to improve HRQoL.
Objectives: The purpose of this study was to examine the relationship between limited oral function and cardiovascular disease in adults over 40 years of age. Methods: Data from the Seventh Korean National Health and Nutrition Examination Survey (2016-2018) was used. In this study, 8,766 adults over the age of 40 years were included as study subjects. They completed a health survey which included current prevalence of hypertension, stroke, myocardial infarction, and angina pectoris, as well as information about blood tests, physical measurements, and oral examinations. Statistical analyses were carried out using complex sample cross-tabulation analysis, general linear model, and logistic regression analysis. Results: The study showed that limited oral function was experienced by patients with stroke (61.3%), myocardial infarction (49.1%), cardiovascular disease (38.5%), hypertension (38.1%), and angina (36.4%) (p<0.05). In patients with stroke, the risk of limited oral function was 2.393 times higher than in patients without stroke. Patients with hypertension were 1.233 times more at risk of speaking difficulty than those without hypertension. Conclusions: Limited oral function is associated with cardiovascular disease. To improve oral health, it is necessary to provide integrated, health-based oral care.
Nonsteroidal anti-inflammatory drugs are widely used for treatment of animals. Their use is limited by frequent side effects commonly involving the gastrointestinal tract, most important of which is development of ulcerating lesions principally In the stomach. Unfortunately, presence of such lesions is often unsuspected because clinical signs may be overlooked until a complication develops. A 5-year-old, female mongrel dog was referred to Veterinary Teaching Hospital in Chungbuk National University. She was showed vomiting, anorexia and lethargy after administration of ibuprofen (400 mg/body, qid, oral) for 5 days. General examination and plain radiography were performed in the patient. Physical examination, hematologic values, chemical profiles, urinalysis and radiographs were normal. Therefore, endoscopic examination was performed in this patient and confirmed to show the gastric ulcer in pyloric region of the stomach. Drug therapy was performed successfully in this case. This article reports the development of a gastric ulcer associated with orthopedic disease treated by ibuprofen.
Objectives : This study reviewed existing studies on clinical examination of Korean medicine to investigate the trends and gaps of existing research on clinical performance examination (CPX) or objective structured clinical examination (OSCE) in Korean medicine education. Methods : We conducted a scoping review according to the five steps suggested by Arksey and O'Malley. Six databases(RISS, OASIS, KMBASE, KISS, ScienceON, and DBpia) were searched and studies published from 2012 to July 15, 2022 were considered. The subjects of the study were limited to domestic studies about OSCE or CPX conducted in Korean medicine education. Results : Among the 25 selected papers, 17 studies implemented OSCE or CPX in practice. Those studies were conducted in 8 clinical departments and 9 of them used standardized patients. All 14 survey studies reported positive answers in satisfaction, efficacy, and self-assessment. OSCE, CPX scoring items were developed by modifying existing tools or developing through expert surveys or through literature review and significant cases. Conclusions : This study is expected to be used as basic data for following studies and promote clinical examination. From now on, the colleges of Korean medicine should proceed research on large-scale students about extended subjects through various research methods to obtain objective results that can be generalized and acquire validity and reliability. In order to promote such research, it is necessary to induce cooperation from institutions related to Korean Medicine and local universities to develop modules, implement, and conduct post-evaluation.
Journal of Fisheries and Marine Sciences Education
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v.2
no.1
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pp.29-35
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1989
It is indispensable for the marine officers who are engaged in the international voyage to make command of maritime English fluently. The Marine Officers Act in Korea which is under ammending in 1989 prescribes the proportion of maritime Englishin English examination is made to be 60% for the 4th and 5th class marine officer-license examination. A concrete syllabus or content of maritime English is not established yet with the exception of a general prescription of minimun knowledge required for certification of marine officers in the IMO/STCW Convention. The authors, who rewrote the maritime English textbook for the course of the fisheries high, schools and the merchant marine high schools, settled the syllabi of nautical English and marine engineering English for the course as follows : 1. The syllabus of nautical English, includes maritime English readings, the IMO English dialogue on port entry, writing of logbooks, night order books, and docking and repair specifications. 2. The syllabus of marine engineering English includes maritime English readings, dialogue on oil supply, writing of engine logbooks and oil record books, standing orders, and docking and repair specifications. The authors propose that the realm of these class marine officer-license examination on maritime English should be limited within in the above mentioned textbook. As maritime English is made to be included in the 4th and 5th marine officer liscence examination since 1989, high schools concerned need to reform the curricula to complete at least 6 units for this subject. On the other hand, the competent authority of this examination must secure questions as much as possible to promote the reliability of them.
The purpose of this study was to explore factors that physical education graduate students in graduate school of education drop out of teacher appointment examination of secondary school by using Ecological Model. The in-depth interview was conducted for 10 physical education graduate students studying in school of education. As an aspect of the intrapersonal component, the effort to apply how participants'current job positively affects their preparation for teacher appointment examination is required and they need to clearly decide academic priorities to prepare for teacher appointment examination. As an aspect of interpersonal component, participants are negatively affected by subjective norm, thereby providing personalized mentoring program is required. As an aspect of organizational component, limited tuition support and inappropriate place to study are emphasized, so practical helps like sports practice instructor or teacher appointment examination preparation class is required. Finally, this study suggests the introduction of integrated system for teacher appointment examination.
Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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2005.07a
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pp.531-532
/
2005
We have used ITO/$Alq_3$/Al structure to study electrical conduction mechanism in $Alq_3$ based organic light emitting diode. Current-voltage characteristics were measured at room temperature by varying the thickness of $Alq_3$ layer from 60 to 400nm. We were able to prove that there are three different mechanism depending on the applied voltage; Ohmic, SCLC (space-charge-limited current). and TCLC (trap-charge -limited current) mechanism.
The monthly ambulatory treatment days in newly detected hypertension group and known hypertension group were analyzed. The population was identified through the records of screening examination given by Korea Medical Insurance Corporation during the period from April to July, 1986. From the records of screening examination, 11,614 hypertensive patients were identified. By random sampling,959 patients were selected : among them, 544 fell under the category of known hypertension group and the other 415 fell under the newly detected hypertension group. The monthly ambulatory treatment days of these patients during the period from the April, 1985 to September, 1987 were analyzed in order to compare the exents of medical care utilization as well as to define and analyze the determinants responsible for the ambulatory treatment days between the two groups. The following results were obtained. 1) In the known hypertension group, no statistically significant changes in the ambulatory treatment days was observed after, in comparision to before, the screening examination. However, in the newly detected hypertension group the medical care utilization increased after the screening examination because of hypertension. 2) The ambulatory treatment days for hypertension of the known hypertension was statistically significant and higher than that of the newly detected hypertension group after screening examination. 3) There was no statistically significant change in the ambulatory treatment days in association with diseases other than hypertension in either group before and after the screening examination. 4) There was no statistically significant variable responsible for ambulatory treatment days in the known hypertension group. However, the income was a statistically significant variable in the newly detected hypertension group. 5) After the screening examination, the variables determining the ambulatory treatment days were the age of the patient and the diastolic blood pressure in the known hypertension group. These variables responsible for 2.02% of the total ambulatory treatment days. In the newly detected hypertension group, the income was a statistically significant variable which was responsible for 2.10% of total ambulatory treatment days. The above results satisfied the hypothesis that there would be no significant changes in the ambulatory treatment days before and after the screening examination in the known hypertension group. Also the hypothesis that there would be no significant change in the exents of medical care utilization for the diseases other than hypertension before and after the screening examination in either group was satisfied Also the medical care utilization was significantly higher in the known hypertension group than the newly detected hypertension group after the screening examination. This finding satisfied the hypothesis. This study was limited by the lack of considering fully the variables reponsible for the clinical symptoms of hypertension as well as for the individual characteristics. Thus, the result of this study are not fully adequate to define the determinants responsible for the exents of medical care utilization. In the future studies on medical rare utilization, additional variables should be considered.
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