• 설비공학논문집
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• 제29권2호
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• pp.89-95
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• 2017

This study aimed to compare the primary heating energy consumption of regional apartment houses based on the enhanced thermal insulation performance of building envelope standards. The difference of the heating energy consumption based on the enhanced thermal insulation performance of building envelope standards in the southern region, the largest regional difference in primary heating energy consumption, is $10.3kWh/(m^2{\cdot}year)$. The difference of the heating energy consumption based on the enhanced thermal insulation performance of building envelope standards in the central region is $8.0{\sim}8.5kWh/(m^2{\cdot}year)$ and that of the Jeju region is $0.5kWh/(m^2{\cdot}year)$. These energy consumption differences do not result in building energy efficiency ratings changing. The building energy efficiency ratings have the possibility to be changed.

• 근관절건강학회지
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• 제28권3호
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• pp.242-251
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• 2021

Purpose: The aim of this study was to examine the relationship between calling, clinical performance, role conflict, and organizational socialization and to evaluate the factors associated with organizational socialization of new nurses. Methods: This study design was cross-sectional correlational study. The participants of this study were new nurses 171 at general hospitals in Jeollabuk-do. Data was collected between August 1 to 20, 2018 from questionnaire responses and were analyzed with descriptive statistics, independent t-test, one-way ANOVA, pearson's correlation coefficient, and multiple regression analysis. Results: The average calling rating was 2.47±0.59 (rated on a scale of 1~4), clinical performance rating was 3.55±0.52 (rated on a scale of 1~5), role conflict rating was 3.29±0.59 (rated on a scale of 1~5), and organizational socialization rating 3.19±0.41 (rated on a scale of 1~5). Calling, clinical performance, role conflict, gender, and work in the desired unit were the significant factors influencing organizational socialization of new nurses. Conclusion: These findings indicate that strategies are needed to improve organizational socialization of new nurses to ensure effective management of personnel. Moreover, it is necessary to develop a program to cultivate the nursing calling, enhance clinical performance, and resolve role conflicts among new nurses.

• 한국환경과학회지
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• 제15권12호
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• pp.1163-1170
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• 2006

This study aims to examine what factors park users value in urban parks and to find ways to elevate user satisfaction for the creation and usage of an urban park. To achieve this, the study relied on two methods: the descriptive method of researching publications and related scholastic writings, and the empirical study method including a survey of present condition and interviews with users. The result shows that the 'sense of nature' is more important than 'functional facilities' in urban natural parks and 'management part like safety and cleanliness of park' is more important than 'utilizing facilities' in urban neighborhood parts. Generally, the importance rating of urban parks visitors felt in them were higher than the satisfaction rating, in terms of living surroundings. Factor analysis resulted in six factors in a natural park and in eight factors in a neighborhood park. Regression analysis in a natural and a neighborhood park showed a positively correlated factor: benefits sought, suggesting that people recognize the importance of urban parks through the benefits they gain in them and the satisfaction they find in urban parks depends on utilizing facilities. Therefore, in urban natural parks, people will find greater satisfaction through pursuit of the benefits they are seeking; improvements to park facilities should address the benefits that park users are seeking.

• 한국산업보건학회지
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• 제18권4호
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• pp.303-309
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• 2008

The reduction of risk within the workplace has long been focus of attention both through industry initiatives and legislation. Exposure matrices according to industries and processes treated DMF (N,N-Dimethylformamide) were constructed based on KOSHA (Korean Occupational Safety and Health Agency)'s 2005 exposure database which were gathered from Korean agencies of workplace hazards evaluation for business place. These exposure matrices were assessed by danger value (DV) that was calculated from combination of hazard rating, duration of use rating, and risk probability rating of exposure to chemical hazardous agents in accordance with Hallmark Risk Assessment Tool. The results of risk assessment is divided four kinds of control bands which were related with control measures. The applicability of risk assessment using exposure matrices was performed by field study and survey for high matrices group. This study found that more attentions should be paid to two industries, manufacture of sewn wearing apparel and manufacture of textiles, among 19 industries, and to 3 processes, coating, processing & mixing, and lab, among 80 processes because those were regarded as having the highest risk.

• 한국조경학회지
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• 제33권6호
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• pp.12-21
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• 2006

This study aims to examine what factors park users value in urban natural parte and to find ways to elevate user satisfaction for the creation and usage of an urban natural park To achieve this, the study relied on two methods: the descriptive method of researching publications and related scholastic writings, and the empirical study method including a survey of present condition and interviews with users. 'Breathing fresh air' and 'cleanliness' were the most important items and play facilities, cultural facilities, and landscape facilities were of lower orders of importance. This suggests that the 'sense of nature' is more important than functional facilities in urban natural parte. The importance of urban natural parks and the satisfaction visitors felt in them were measured, with mean results of 5.86 and 3.88, respectively, in terms of living surroundings. The impotance rating is higher than the satisfaction rating. Factor analysis resulted in six factors: benefits sought facilities for use, pleasant use, safety, accessibility, and management. Correlation and regression analysis showed only one positively correlated factor: benefits sought, suggesting that people recognize the importance of urban natural Parte through the benefits they gain in them and the satisfaction they find in urban parte depends on utilizing facilities. Therefore, in urban natural parks, people will find greater satisfaction through pursuit of the benefits they are seeking; improvements to park facilities should address the benefits that park users are seeking.

• 한국산업보건학회지
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• 제25권1호
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• pp.45-57
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• 2015

Objectives: This study aims to compare the physicochemical characteristics, toxicological data with Occupational Exposure Limits (OELs) of chemicals under the Occupational Safety and Health Act(OSHA) regulated by the Ministry of Employment and Labor of Korea. Methods: Information on chemicals which have OELs on physicochemical characteristics and toxicological data was collected using Material Safety Data Sheet(MSDS) from Korea Occupational Safety and Health Agency(KOSHA) and the Korea Information System for Chemical Safety Management(KISChem) in 2014. Statistical analyses including correlation and simple regression were performed to compare the OELs with chemical characteristics including molecular weight, boiling point, odor threshold, vapor pressure, vapor density, solubility and octanol-water partition coefficient(OWPC) and toxicological data such as median lethal dose($LD_{50}$) and median lethal concentration($LC_{50}$). Results: A total of 656 chemicals have OELs under OSHA in Korea. The numbers of chemicals which have eight-hour time weighted average(TWA) and short term exposure limits(STEL) are 618 and 190, respectively. TWA was significantly correlated with boiling point and STEL was only correlated with vapor pressure among physicochemical characteristics. Solubility and OWPC between "skin" and "no skin" substances which indicate skin penetration were not significantly different. Both $LD_{50}$ and $LC_{50}$ were correlated with TWA, while the $LC_{50}$ was not with STEL. As health indicators, health rating and Emergency Response Planning Guidelines(ERPG) rating as recommended by the National Fire Protection Association(NFPA) and American Industrial Hygiene Association(AIHA) were associated with OELs and reflect the chemical hazards. Conclusions: We found relationships between OEL and chemical information including physicochemical characteristics and toxicological data. The study has an important meaning for understanding present regulatory OELs.

• 수산해양교육연구
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• 제27권6호
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• pp.1646-1655
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• 2015

Korean government has issued the ratings standard for disease control of aquaculture farms according to the Aquatic Life Disease Control Act in 2008. There are five rating criteria within the enforcement regulations; period of disease free, performance of disinfection, environmental and hygienic management, keeping record of trade and sales, completion of education for disease control. There are no application has been applied on the basis of the rating criteria so far because detailed subcriteria and scoring indicators has not established for assessment process. In order to apply the ratings standard for disease control, we set up the subcriteria and new scoring for rating disease control level based on legal criteria in this study. This study was conducted on 90 targeted olive flounder farms in Jeju. The result of disease control level assessment on olive flounder aquaculture farms show the overall average of Jeju-do was 72.9 points and differed depending on the district; 74.7 in Jeju-si and 71.1 in Seogwipo-si, respectively. The Spearman correlation of each evaluation index show the disease control level score was correlated highly with the performance of disinfection(R=0.715, p<0.01), and environmental and hygienic management(R=0.661, p<0.01). The result of correlation analysis show that there is the highest correlation between the aquaculture farm status and the total mortality(R= -0.618, p<0.01). The reliability of the results are considered to be accurate in the Cronbach's alpha value of 0.727.

• 한국구조물진단유지관리공학회 논문집
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• 제22권6호
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• pp.89-96
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• 2018

교량 시설물은 사회적으로 중요한 기반 시설물로서 공용기간 동안 안전한 관리가 중요하다. 도로교량의 많은 비율을 차지하고 있는 강박스거더교량의 경우 허용응력설계법으로 설계되고 내하력이 평가되어 왔으나, 최근 한계상태설계법으로 설계기준이 변경되었음에도 불구하고 내하력 평가에서는 아직까지 허용응력법을 대부분 사용하고 있는 실정이다. 이에 이 연구에서는 2 가지 설계 방법을 이용하여 다수의 교량에 대한 내하율 평가 결과를 비교하고, 기존의 허용응력법에 의한 내하력을 한계상태법에 의한 내하력으로 환산하는 방법을 모색하고자 하였다. 이 결과는 추후 교량을 관리함에 있어 보강 필요성 판단 및 한계상태법에 의한 내하력 평가에 기초자료로 활용될 수 있을 것으로 기대된다.

• 한국ITS학회 논문지
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• 제22권1호
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• pp.1-15
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• 2023

본 연구에서는 전국 고속도로를 대상으로 화물차 교통사고에 영향을 미치는 주요 요인을 파악하고자 한다. 이를 위해, 고속도로 교통사고 자료들과 포아송 및 음이항 회귀모형을 이용하여 화물차 교통사고 건수 예측모형을 개발하였다. 모형에서 유의한 것으로 확인된 변수는 화물차 연속주행시간지수, 구간연장, 화물차 교통량, 구간내 교량 수, 졸음쉼터 개수이다. 또한, 구축된 예측모형을 이용하여 고속도로 구간별 안전등급(level of service of safety, LOSS)을 도출하였다. 이후 LOSS를 전국 고속도로 네트워크에 표출하여 고속도로 구간별 화물차 교통사고 위험도를 진단하였다. 본 연구에서 개발된 모형과 LOSS는 고속도로에서의 화물차 교통사고 저감을 위한 정책수립의 기초자료로 활용될 것으로 기대된다.

• 동의신경정신과학회지
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• 제35권1호
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• pp.37-68
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• 2024

Objectives: This study aimed to systematically review thread-embedding treatment studies for depression, anxiety, and dementia and examine the effectiveness and safety of thread-embedding treatment. Methods: Ten domestic and international search databases were used for study selection, including CNKI, PubMed, CENTRAL, EMBASE, CINAHL, AMED, PsycArticles, RISS, OASIS, and KCI. We included studies that presented diagnostic or appropriate criteria for depression, anxiety, and dementia, and randomized control studies using thread-embedding therapy. We searched papers published until October 10, 2023. Results: Twenty-one studies were selected, of which 11 studies were conducted on depression, nine on dementia, and one on anxiety disorders. The most commonly used acupoint for depression was Gansu (BL18), whereas zusanli (ST36) and fenglong (ST40) were used for dementia. The most commonly used type of thread was 1-0 United States pharmacopeia (USP) and 1 cm for depression and 2-0 USP and 1 cm for dementia. The treatment period for most of the studies was once every 2 weeks and for 8 weeks. Among the included studies, 17 showed significant improvements in depression scales, such as Hamilton depression rating scale and Self rating depression scale, activities of daily living scales, and cognitive function scales, such as Hasegawa dementia scale and Mini-mental state examination. Six studies reported adverse events, and no studies reported significant adverse events. Two studies reported follow-ups. Conclusions: This study presents limited evidence for the effectiveness and safety of thread-embedding therapy for depression, anxiety, and dementia. Well-designed studies are needed to review the clinical efficacy and safety of thread-embedding therapy in the future.