• Title/Summary/Keyword: control items

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Design of a Curtailed-SPRT Control Chart (단축-축차관리도의 설계)

  • Chang, Young-Soon
    • Journal of the Korean Operations Research and Management Science Society
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    • v.34 no.1
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    • pp.29-37
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    • 2009
  • This paper proposes a curtailed-sequential probability ratio test (SPRT) control chart. For using the conventional SPRT control chart, the number of items inspected in a sampling point should have no restriction since items in a sampling point are inspected one by one until an SPRT Is terminated. The number of observations taken in a sampling point, however, has an upper bound since sampling and testing of an item is time-consuming or expensive. When the sample size reaches the upper bound without evidence of an in-control or out-of-control state of a process, the proposed chart makes a decision using the sample mean of all observations taken in a sampling point. The properties of the Proposed chart are obtained by a Markov chain approach and the performance of the chart is compared with fixed sample size (FSS) and variable sample size (VSS) control charts. A comparative study shows that the proposed chart performs better than VSS control charts as well as conventional FSS control charts.

A Study on the Prospects of Export Control System Regarding to the Strategic Items (전략물자 수출통제의 현황과 전망에 관한고찰)

  • Oh, Hyon-Sok;Yang, Jung-Ho
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.42
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    • pp.309-335
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    • 2009
  • Over the last several years, regarding to the strategic items, the international community has seen governments make more formal commitments to adopt and implement effective export controls to counter the proliferation of weapons of mass destruction(WMD). United Nations Security Council Resolution 1540(that is "S/RES/1540") stands as the most important of these commitments. Many UN members already have export control laws and regulations in place to prevent the proliferation of weapons of mass destruction. Many members also participate in a variety of formal and informal international arrangements to coordinate their export control efforts. Nonetheless, each of these countries has its own unique legal framework for export controls. This generates considerable diversity in the construction of the specific national legal authorities. Over the last few years, however, a consensus over what constitutes the key elements of effective legal authorities for export controls has begun to emerge. Evidence for this development comes in the identification of best legal authorities or principles at several multilateral conferences on export controls.

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A STUDY ON THE HEAD POSTURES OF MOUTH BREATHERS (구호흡자(口呼吸者)의 Head posture에 관(關)한 연구(硏究))

  • Ahn, Jae-Hyun;Cha, Kyung-Suk
    • The korean journal of orthodontics
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    • v.21 no.3
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    • pp.581-590
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    • 1991
  • This study was carried out for the comparison of the head postures between mouth breathers and normal nasal breathers. For this purpose, a test group of 28 mouth breathers, between the ages of 8 to 12 years old and a control group of 25 nasal breathers were used. Following results were obtained after comparing the craniofacial and craniocervical angulations to the True Vertical line. 1. In the comparisions relating to the True Vertical Line, results were obtained using four items; NSL/VER, FH/VER, NL/VER, PMV/VER. Variations were observed in all the items and the craniofacial angulations in the mouth breathers group showed more superior position compared to the control group. 2. In the comparisions relating to the craniocervical angulations, results were obtained using four items; NSL/OPT, FH/OPT, NL/OPT, PMV/OPT. Variations between the two groups were observed only in the PMV/OPT item and the mouth breather group showed more craniocervical angulations compared to the control group.

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Survey and analysis of risk assessment factors for development of KASS Control support function (자율운항선박 관제 지원 기능개발을 위한 위험도평가 요소 도출 설문조사 및 분석)

  • Nam-soo Kim;Chang-dong Lee;Yeo-jin Seo
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2022.06a
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    • pp.169-170
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    • 2022
  • In this study, in order to select the element items for risk assessment for autonomous ships, a survey was conducted on the maritime traffic control workers and the risk assessment element items were analyzed. The top five element items for risk assessment were identified, and the detailed value of risk elements according to the size of the vessel could be confirmed.

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Rasch Analysis of FIM Physical Items in Patients With Stroke in Korea (뇌졸중 환자의 기능수준에 따른 FIM 신체적 기능 항목의 라쉬분석)

  • Park, So-Yeon;Won, Jong-Im;Lee, Mi-Young
    • Physical Therapy Korea
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    • v.17 no.2
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    • pp.51-59
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    • 2010
  • The Functional Independence Measure (FIM) is widely used to determine the dependency of activity of daily living in rehabilitation patients. The purposes of this study were to evaluate the unidimentionality of the FIM physical items and to analyze the validity of cross-functional levels in stroke survivors in Korea. Thirteen physical items of FIM were rated according to an ordinal scale of a 7-level classification. Two hundred and seventy-nine patients participated in the study (age range 18~92 years and 57% male). Six items-eating, bladder control, bowel control, transfer to and from the bed/wheelchair, transfer to and from the toilet, and bathing-showed misfits with the Rasch model. The most difficult item was 'bathing', the easiest item was 'bowel control'. Although there were several differences within functional levels, the hierarchical order of item measures was rather similar. 'Bathing' was the most difficult in high level patients (above 60), however 'stairs' was most difficult in the middle level (41~60) group. In the low level group (below 40), 'toileting' was the most difficult. In conclusion, the present study has shown several differences of item difficulty among functional levels. This result will be useful in planning interventions, and developing rehabilitation programs for stroke survivors.

Evaluation of Field Epidemiology Specialist Program for School Nurse (학교보건교사 전염병관리교육 효과평가)

  • Park, No-Yai;Kwon, Jun-Wook;Kim, Myung-Soon;Jeong, Ihn-Sook
    • Korean Journal of Health Education and Promotion
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    • v.24 no.1
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    • pp.63-74
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    • 2007
  • Objectives: This study aimed to evaluate the educational effect of the Field Epidemiology Specialist Training Program for School Nurse which composed of 18hours curriculum. Method: The subjects were 797 who participated in the 2005 training program. Data was collected with structured questionnaires(knowledge on the control of communicable disease 15 items, attitude 15 items, and confidence in practice 14 items, demographic characteristics 4 items) before (January) and after (July to October) programs in 2005. Results: Knowledge on the control of communicable disease was improved from 9.7 points (possible range : 0-15) before program to 11.9 points after program. Attitude was improved from 53.6 points (possible range : 15-60) before program to 55.7 points after program. Confidence in practice was changed from 45.9 points (possible range : 14-56) before program to 50.0 points after program. Even though all three areas were improved after educational program, knowledge showed the largest change among them. Conclusion: We can conclude the educational program was effective because knowledge, attitude, and confidence in practice on the control of communicable were statistically significantly improved after educational program. Further educational program is recommended to be operated to get more improvement in attitude and confidence in practice. And short-term continuing educational program is needed to maintain and refresh the information on the control of communicable diseases in schools.

Comparison of the Nutrition Knowledge, food Habits and Life Styles of Obese Children and Normal Children in Elementary School in Kyeong-gi Province (경기지역 일부 초등학교 비만아 및 정상아의 영양지식, 식사 및 생활 습관의 비교)

  • 박현옥;김은경;지경아;곽동경
    • Korean Journal of Community Nutrition
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    • v.5 no.4
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    • pp.586-597
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    • 2000
  • The nutrition knowledge and food attitude of obese children were assessed and compared with their normal children counterparts to provide information for nutrition education programs. One hundred forty six obese children and 92 normal children from the fourth to sixth grade in Bucheon and Anyang elementary schools of Kyeong-gi Province were selected for the study. A multiple choice questionnaire, including 12 items of general nutrition knowledge and 13 items of weight control, were used to test the nutrition knowledge of children. The results of this study are as follows : 1) 57.5% of male and 40.9% of female obese children had experience with weight control, but the rate of correct answers on the nutrition knowledge test ranged from 53% to 58%, which does not show any significant difference between the two groups. The rate of correct answers on items conrerning 'general nutrition knowledge' and 'nutrition knowledge for weight control' did not show any significant difference among the two groups. 2) Obese male students showed a higher rate of correct answers(59.2%) on items of 'the proper food selection for obese children', compared with their counterparts and also obese female students showed a higher rate of correct answers(88.6%) on 'physical exercise', compared with their counterparts. 3) The rate of correct answers on nutrition knowledge of 'basic food groups', 'the functions of iron and vitamins', 'the concept of energy', and 'the principle of weight change' were lower than 40%. 4) The obese children frequently did not have breakfast, overate during lunch in many cases, and had low recognition on knowledge that was necessary to weight control. 5) Only 30.9% and 22.7% of male and female obese children replied that they would participate in weight control programs. However, 53.6% of males and 68.2% of females did not show any concern in participating the programs. From these results, it was suggested that it is necessary to motivate the obese to participate in weight-control program. When developing nutrition education programs for the obese, the contents of the questions that showed a low correct answering rates should be emphasized.

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Analysis of Energy Saving Rate of Office Buildings According to the Items of an EPI Machine Part (에너지 성능지표 기계부문 항목에 따른 업무용 건물의 에너지 절감율 분석)

  • Lee, Ho Jin;Kim, Seo Hoon;Jung, Jae Uk;Jang, Cheol Yong;Song, Kyoo Dong
    • KIEAE Journal
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    • v.13 no.4
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    • pp.49-54
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    • 2013
  • released by IEA, 2010, indicated that Korea's GDP, of 8 countries surveyed-Korea, Frans, Germany, Italy, Japan, the UK, the USA, and Australia-was the lowest, but the electric consumption per head was third, following America and Australia. Thus, our government has been striving to reduce energy usage and especially to lessen the energy used in buildings, proposing a variety of road maps such as 'building energy efficiency rating' and 'energy saving design standards of buildings'. Accordingly, this study investigated the effect of the items of machine part among EPI items on the energy saving rate. I measured energy usage by ECO2 program, for simulation program, that is used for the building energy efficiency rating. Result showed that items concerning control of pumps and fans had much more saving rate than the ones concerning efficiency of heater and cooler that had bigger scores assigned among EPI items. Result showed that items concerning control of pumps and fans had much more saving rate than the ones concerning efficiency of heater and cooler that had bigger scores assigned among EPI items. Therefore, I think that grades assigned to items in energy performance index need to be corrected.

Emergency Nurses' Perception and Performance of Tuberculosis Infection Control Measures (응급실 간호사의 결핵감염관리에 대한 인식과 수행)

  • Kim, Soo-Jung;Kang, Ji-Yeon
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.17 no.3
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    • pp.351-361
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    • 2010
  • Purpose: The purpose of this study was to investigate the perception and performance of tuberculosis infection control measures among emergency department nurses. Methods: A structured questionnaire was administered to a convenience sample of 227 emergency department nurses from 20 hospitals in B City. Results: The mean perception score was 4.52 out of a possible 5, and the mean performance score was 3.31 out of a possible 5. There were big differences between the perception and performance score on the items regarding wearing a gown or mask, while there were small differences on the items regarding dealing with patients' articles or medication. Conclusion: Emergency nurses showed high perception and low performance score on the items related to facilities and regulation such as visitation restriction or patient isolation. There was a positive correlation between perception and performance score. Conclusion: For emergency nurses, perception is higher than performance of tuberculosis infection control measures. The findings indicate the importance of providing continuing education for emergency nurse professionals seeking to update and increase their knowledge and to develop evidence-based nursing protocols on tuberculosis infection control in emergency department.