• 보건의료산업학회지
• /
• 제8권2호
• /
• pp.139-148
• /
• 2014

The purpose of this study was to analyze the factors affecting the unmet dental needs of Koreans. In relation to the subjects and methodology for this study, the data from the 5th national health nutrition survey which had been conducted between 2010 and 2012 were analyzed by using the PASW statistics 18.0 (SPSS Inc., Chicago, IL, USA), a statistical program, through the frequency analysis of complex samples, cross analysis of complex samples, and logistics regression analysis of complex samples. The results of analysis showed that the rate of unmet dental needs stood at 35.3% of all subjects. Moreover, to determine the factors related to the unmet dental needs, the logistics regression analysis of complex samples was conducted. The results of analysis showed that the demographic and socio-economic factors and oral health condition factors had relationship with unmet dental needs. It is necessary to consider all the objective dental treatments that reflect specific dental diagnosis from a comprehensive standpoint.

• 한국과학교육학회지
• /
• 제10권1호
• /
• pp.95-118
• /
• 1990

This students ideas in science are diverse and unique It is realized that children's preconceptions and misconceptions established before lessoning hgve a crucial in fluence on the following education. so it is meaningful to analyse the children's concept of temperature for the better teaching strategy in this study. This survey of the Elementary school children's concept is designed for the subtopics of temperature as the relation between heat and temperature, He relation between volume(size) and temperature, the temperature of change of state on water, the temperature of substances in the condition of thermal equilibrium. Using Clinical method, this research was executed to 306 children at elementary school. The network method or the analyse of questionnaires were used to analyse the children's response. Findings of this survey are as follow. Students are already familiar with such concept as this increase of temperature by geating, but they think every substance is not the case. Many students appears to believe that the temperature of an object(substance) is related to its size(vloume) Qualitative tasks are difficult than qualitative ones. This trend appear highly in the low grade students. Don't know the temperature of change of state on water and it's stability They think that the temperature is determined by the heating time(period) and the temperature of heating source. Students think, in general that temperature of substance in the condition of thermal equilibrium is different.

• 한국한의학연구원논문집
• /
• 제11권1호
• /
• pp.119-125
• /
• 2005

We conduct a survey of actual condition of medical devices in korea traditional medicine on 157 oriental medicine doctors and 183 manufacturers. The 61% percent of doctors indicate the trouble in use of medical devices which is applied to korea traditional medicine. The manufacturers replied that devices have a problem with diagnosis(53%) and treatment(36%). To overcome these problems, it is necessary to develop devices based on the study of basic oriental medicine and the reliable clinical research. This study contributes the improvement of quality and the revision of rules on medical devices.

• 대한영양사협회학술지
• /
• 제2권1호
• /
• pp.81-91
• /
• 1996

Customer satisfaction concerning foodservice quality characteristics were evaluated by using importance performance analysis(IPA) techniques in employee feeding operations. The purpose of this study were to survey employees' health condition and their food habits, to examine employees' perception of the importance and performance concerning foodservice quality charactertics and to analyze attributes for quality improvement in employee feeding operations. A questionaire for survey was developed and mailed to 1,700 employees and the response rate was 60.8%. Statistical data analysis was done using the SAS programs for descriptive analysis, $x^2$-test, F-test and Fisher's LSD. The results of this study were as follows 1. Most of employees responded that their health condition were generally good. 2. 17.8% of surveyed employees responded that they usually skipped their breakfast. 3. Main reasons of using employee feeding facilities identified were convenience and cheap price of meals. 4. Dissatisfied quality attributes identified were taste of food, atmosphere and location d dinning room, and the quality of food served for breakfast and dinner, 5. Satisfied quality attributes identified were nutritionally balanced meal with variety, competitive managerial skills of dietetian, and quality of food served for lunch.

• 문화기술의 융합
• /
• 제8권3호
• /
• pp.529-535
• /
• 2022

전 사업장의 산업재해를 최소화하기 위해 정부는 다양한 안전보건정책을 발굴하여 적극적으로 운영하고 있다. 국내 사업장의 안전보건관리 역량은 사업장의 규모에 따라 큰 차이가 있으며 특히 50인 미만 사업장에서는 안전관리가 어려운 실정으로 이에 재해율은 상대적으로 높은 비중을 차지하고 있다. 이에 정부는 소규모 사업장의 안전보건확립을 위해서 안전보건기술지원사업을 운영하고 있다. 본 연구에서는 안전보건기술지원사업의 혜택을 받고 있는 소규모 사업장의 실태조사를 통해 본 사업의 내실화 방안을 제시하고자 하였다.

• 한국석유지질학회:학술대회논문집
• /
• 한국석유지질학회 1998년도 제5차 학술발표회 발표논문집
• /
• pp.56-65
• /
• 1998

Methane hydrate is ice-like solid compound consisting of mainly methane and water, and is stable under specific low temperature and high pressure conditions (HSZ : methane hydrate stability zone) that occurs in permafrost regions and in the ocean floor sediments. Geophysical survey was implemented in the southern area of the East Sea, and the HSZ of the study area is determined by the temperature, pressure and local heat flow obtained from the survey and well data. In the study area, methane hydrates could exist in the sediments below the water depths of about $300{\cal}m$, and the base of HSZ is about 600m beneath the seafloor. The acoustically blanking zones in the sediment and phenomena of gas seepage were detected from the seismic section. These sediments have the sufficient physical condition for the formation of methane hydrate. The temperature and pressure conditions were experimentally measured for the dissociation of methane and propane hydrates in Pure water. Equilibrium conditions of methane and propane hydrates were obtained in the pressure range up to 19050Kpa and 401.3Kpa. Under same temperature condition, propane hydrate was dissociated at lower pressure than that of methane hydrate.

• 교육시설
• /
• 제7권2호
• /
• pp.5-13
• /
• 2000

In order to make good educational circumstance of the Technical High-school, it is important that we must aware of the characteristics of technical high-school and take all considerations into the planning. This study is to plan the architectural space and path of flow in practice rooms through questionnare survey. The result are as follow. A majority of respondents recognize that the existing facility and space condition are not appropriate, because the past investment has overemphasized on the quantitative aspect. It is time to need the change of its directions toward the quantitative investment in future. It is also necessary to plan the space and the path of flow of the practice rooms in consideration of the characteristics of school.

• 한국환경교육학회지:환경교육
• /
• 제14권2호
• /
• pp.142-155
• /
• 2001

The purpose of this stud)r was to critically review the trends of research methodologies of environmental education. We analyzed Journal of Korean Society for Environmental Education (vol. 1 ∼vol. 14(1)) and The Journal of Environmental Education(vol. 25∼vol. 31) to investigate the trends of methodology in EE research of Korean and other countries and to explore the tasks of it. The findings were as follows, 1) More than half of the character of the papers in Korea were actual condition (54.38%), substitute proposal (32.12%), and the papers in others countries were actual condition (39.35%), substitute proposal (33.55%). 2) The major parts of the method of the papers in Korea were literature review (26.05%), survey research (23.79%), on the other hand the papers in other counties were survey research (42.70%), literature review (25.84%). The results indicated that the research methodologies of environmental education in Korea were needed to be reinforced in the field of qualitative and quantitative research methods.

• Journal of Periodontal and Implant Science
• /
• 제28권2호
• /
• pp.273-280
• /
• 1998

This study was to compare the patients wearing comfortable distally extending cantilever bridges (DECBs) with those having discomfortable ones, in the aspect of the periodontal condition & prosthodontic status. The subjects in the present study were 164 patients appointed to Seoul National University Dental Hospital. One group was consisted of 101 patients wearing comfortable DECBs and the other group were made of 64 patients who had felt discomfort. On clinical parameters, there were no significant difference between 2 groups in plaque index, tooth mobility & probing depth, but gingival index was higher in group wearing discomfortable DECBs. In prosthodontic status, the ratio of pontic oversize was higher in the group of discomfortable DECBs, but there were no significant difference in the view of crown overcontour, overhanging margin & interproximal space closure between 2groups. This study failed to clarify causal factors of discomfortable DECBs.

• 대한가정학회지
• /
• 제34권4호
• /
• pp.75-86
• /
• 1996

This study was surveyed to investigate the condition and satisfaction of foodservice environment. the survey was conducted based on an instrument which was developed by reviewing previous research. The instrument was provided to 57 nutritionists at the elementary schools in Taegu area, and its contents include the standard and relevance of kitchen center, the layout type and the standard of satisfaction for the cooking equipment, washing machine, kitchen table and kitchen facilities. Data obtained from survey were analyzed by SAS. These results show that the combination layout type among four types of cooking center in the arrangement gives the highest standard of satisfaction to nutritionists. The amounts of equipment holding are related to its arrangement in the standard of satisfaction.