• Title/Summary/Keyword: Data Analysis

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A Study on Improvement of Air Quality Dispersion Model Application Method in Environmental Impact Assessment (II) - Focusing on AERMOD Model Application Method - (환경영향평가에서의 대기질 확산모델 적용방법 개선 연구(II) - AERMOD 모델 적용방법을 중심으로 -)

  • Suhyang Kim;Sunhwan Park;Hyunsoo Joo;Minseop So;Naehyun Lee
    • Journal of Environmental Impact Assessment
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    • v.32 no.4
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    • pp.203-213
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    • 2023
  • The AERMOD model was the most used, accounting for 89.0%, based on the analysis of the environmental impact assessment reports published in the Environmental Impact Assessment Information Support System (EIASS) between 2021 and 2022. The mismatch of versions between AERMET and AERMOD was found to be 25.3%. There was the operational time discrepancy of 50.6% from industrial complexes, urban development projects between used in the model and applied in estimating pollutant emissions. The results of applying various versions of the AERMET and AERMOD models to both area sources and point sources in both simple and complex terrain in the Gunsan area showed similar values after AERMOD version 12 (15181). Emissions are assessed as 24-hour operation, and the predicted concentration in both simple and complex terrain when using the variable emission coefficient option that applies an 8-hour daytime operation in the model is lowered by 37.42% ~ 74.27% for area sources and by 32.06% ~ 54.45% for point sources. Therefore, to prevent the error in using the variable emission coefficient, it is required to clearly present the emission calculation process and provide a detailed explanation of the composition of modeling input data in the environmental impact assessment reports. Also, thorough reviews by special institutions are essential.

Occurrence of Regalecus russellii off the Coast of Gangwon-do, Korea and Coastal Environment (강원도 속초 연안에서 산갈치(Regalecus russellii) 출현과 연안환경)

  • Jong-Won Park;Soon-Man Kwon;Pyo-Il Han;Chung Il Lee
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.29 no.5
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    • pp.520-524
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    • 2023
  • Regalecus russellii, which spends most of its life in the deep sea, occasionally appears in coastal waters. However, the reasons for its appearance remain unclear. In Korea, R. russellii mainly appears along the eastern coastal waters, and most of them are caught in fishing gear, such as gill nets, or are stranded on the shore; nevertheless, the frequency of appearance is extremely low. Even if found, this species is often identified to be morphologically similar to Trachipterus ishikawae, and comprehensive analysis to identify the species through sample collection is limited. Consequently, information on the biological characteristics of R. russellii appearing in the coastal waters of Korea is scarce. Herein, the anatomical characteristics of R. russellii caught in a gill net off the Gangwon-do coast on March 14, 2023, were analyzed, and coastal water temperature was measured using an ocean buoy. Our results showed that the individual was male, its total length was 320 cm, body weight was 27.52 kg, body length was 26.62 cm, gonad weight was 619.45 g, and liver weight was 218.71 g. The stomach was full of euphausiids. The water temperature changed drastically at 15-30 m roughly a week before the R. russellii individual was caught, and the subsurface water temperature was lower than 10 ℃. Our findings provide baseline data to understand the ecological characteristics of R. russellii appearing along the eastern coast of the Korea.

Analysis of Thermal Environment Impact by Layout Type of Apartment Complexes for Carbon Neutrality Net-Zero: Based on CFD Simulation (공동주택단지 배치유형별 열환경 영향성 분석: 유체역학 시뮬레이션을 기반으로)

  • Gunwon Lee;Youngtae Cho
    • Land and Housing Review
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    • v.14 no.3
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    • pp.93-106
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    • 2023
  • This study attempted to simulate changes in the thermal environment according to the type of apartment complex in Korea using CFD techniques and evaluate the thermal environment by type of apartment. First, apartment complex types in the 2000s and 2010s were referred from previous studies and four types of apartment complex were extracted from. Second, the layout of the apartment complex and temperature changes were analyzed by the direction of wind inflow. Third, a standardized model was created from each type using tower type, plate type, and mixed driving. Last, CFD simulations were performed by setting up the inflow of wind from a total of eight directions. The temperature was relatively low in the type consisting of only the tower type and the type of placing the tower type in the center of the complex, regardless of the direction of the wind. It was due to the good inflow of wind from these types to the inside of the complex. It can be interpreted because wind flows easily into the complex in these types. The findings showed that wind flow and resulting temperature distribution patterns differed depending on the building type and complex layout type, confirming the need for careful consideration of the complex layout in the early design stage. The results are expected to be used as basic data for creating a sustainable residential environment in the early design stage of apartment complexes in the future.

Survey of Foodservice Management Status according to Welfare Facility Type for Disabled Persons (장애인 복지시설 유형에 따른 급식관리 실태 조사)

  • Dayoung Oh;Woori Na;Seohyeon Hwang;Jung Joo Lee;Yu Jin Yang;Hyeok, Lee;Ji Hyeon Bang;Hae-Young Lee;Cheongmin Sohn
    • Journal of the Korean Dietetic Association
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    • v.29 no.3
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    • pp.173-189
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    • 2023
  • This study aimed to determine foodservice and hygiene management statuses at welfare facilities catering to disabled persons by facility type to provide basic data for foodservice management guidelines. An online survey was distributed to workers at 1,984 welfare facilities for disabled persons in Korea, and 531 facilities responded, which represented a response rate of 26.8%. The survey requested general information about the facilities, facility users, meals, hygiene, and management. Statistical analyses were performed, and frequency analysis and the chi-square test were used to investigate responses by facility type. The survey results revealed that daycare centers were most common and accounted for 27.4% of responses. Residential facilities for the severely disabled and sheltered workshops accounted for 16.9% and 16.4%, respectively, and residential facilities by disability type accounted for 13.0%. The presence of dietitians at welfare facilities varied by facility type. Welfare centers for the disabled (94.7%) had the highest percentage of dietitians, followed by residential facilities for the severely disabled (87.8%). On the other hand, sheltered workshops and daycare centers for disabled persons had the lowest percentages of dietitians (10.3% and 4.1%, respectively). This study highlights the variations that exist in foodservice management across different welfare facilities for disabled persons and emphasizes the challenges faced by those responsible for managing foodservices and maintaining hygiene, particularly in large facilities with no dietitians. Therefore, we recommend tailored meal management guidelines be developed for each type of welfare facility for disabled persons.

A Study on the Activation of Green Remodeling to Achieve Carbon Neutrality - Focusing on a case of Gwangmyeong City - (탄소중립 목표 달성을 위한 그린리모델링 활성화 방안에 관한 연구 - 광명시 사례를 중심으로 -)

  • Kim, Gi-Ran;Lee, Ju-hyun;Kim, Kyong Ju;Kim, Kyoungmin
    • Korean Journal of Construction Engineering and Management
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    • v.24 no.5
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    • pp.12-21
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    • 2023
  • Green remodeling proposed in the Korean New Deal is a project to build or remodel eco-friendly and energy-efficient buildings using renewable energy facilities and high-performance insulation for public buildings. The government intends to achieve the carbon emission reduction target by conducting green remodeling. Major overseas cities that conduct green remodeling are actively promoting technology support and promotion along with energy performance evaluation according to building characteristics, subsidies for private revitalization, and tax benefits. With this background, the analysis of the current status and problems of the green remodeling project was performed and the Activation factors of Green Remodeling were derived from survey results. This study suggested strategic measures such as a participation of civil society, promotion, and priority selection of administration and policy measures such as a leading role of the public sector, expanding support for the socially underprivileged, and financial support and tax benefits. And this study results are expected to be utilized as basic data to promote the green remodeling project.

The Action-observation Training Impacts on the Improvement of Stroke Patient's Cognitive Functioning (동작관찰훈련이 뇌졸중 환자의 인지기능 향상에 미치는 영향)

  • Lee, Seul-Ah;Kang, Seon-Hwa;Choi, Won-Ho;Lee, In-Kyung;Jung, Sang-Mi
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.1
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    • pp.199-206
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    • 2019
  • This study aims to identify whether the action-observation training impacts on the improvement of stroke patient's cognitive functioning. When it comes to the research methods, Korean version of Mini-Mental State Examination (MMSE-K) and Literacy Independent Cognitive Assessment (LICA) conducted to assess samples between 23 April and 18 May 2018. Samples are seven patients who are hospitalized in Kyung-In region. In the meantime, seven tasks such as the range of joint motion (ROM) dance, arrangement of pullover clothes, lacing-ups of a pair, folding up a facecloth and socks, the origami and tying a necktie implemented as the action-observation programme. In order to analyse collected data, descriptive statistics analysis, paired t-test and the Wilcoxon signed-rank test were carried out via SPSS version 20 (a statistics programme). The change in value from MMSE-K showed its statistical significant as 3.29 (±1.38, p<.001) as well as value from LICA in recollective powers was 12.16 (±6.73), therefore, the statistic is said to be statistically significant. In conclusion, action-observation training most influenced recollective powers amongst stroke patient's cognitive functioning areas. Even though development of cognitive functioning discovered in other areas, its values were possibly statistically insignificant. Hence, future research ought to demonstrate which areas action-observation training is effective according to brain lesion site.

The Effects of Individuality and Relationship of University Freshman on College Life Adaptation (대학교 신입생의 개별성 및 관계성이 대학생활적응에 미치는 영향)

  • Yoo, Yong-Shik
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.4
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    • pp.271-281
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    • 2019
  • The purpose of this study is to provide basic data for improving the adaptability of college life by examining the effects of individuality and relationship of university freshmen on college life adaptation. The study subjects were 383 freshmen enrolled in a university in Chungbuk C City, and a multiple regression analysis was conducted to examine the factors of impact. The first study found that boys were more individual in genders, depending on the general characteristics. Extroverted students were more relational. In the majors, students in the humanities and social sciences were more related, and students in the natural engineering department were more individual. Second, the lower factors affecting college students' adaptation to college life were found to be autonomous in individuality, and affinity and intimacy in relation. In particular, autonomy has the greatest impact on adaptation to college life, followed by affinity and intimacy. Based on these results, policy suggestions are needed first, it is necessary to balance and balance individuality and relationship. second, it is necessary to create activities and learning environments that you can choose for yourself. third, it is necessary to develop programs to promote affinity and intimacy such as department events and club activities. fourth, emotional and psychological program support through face-to-face contact should be activated to improve individuality and relationship.

Nursing Staff's Knowledge, Attitudes and Nursing Performance Concerning Dysphagia for Life Care (라이프케어를 위한 간호 인력의 연하곤란 관련 지식, 태도 및 간호수행과의 관계)

  • Lee, Jeoung-Mi;Chang, Mi-Young
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.4
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    • pp.377-384
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    • 2019
  • This study was intended to understand the status of dysphagia related knowledge, attitude and nursing performance of nursing staff's in geriatric hospitals, to confirm the correlation among these, and to provide basic resources for dysphagia nursing intervention programs. The 220 subjects were nursing staff's who worked in geriatric hospitals located in G city and N city. For data analysis, The descriptive statistic was used to analyze the subjects' general characteristics, and dysphagia related characteristics, knowledge, attitude and nursing performance degree. For the differences of dysphagia related knowledge, attitude and nursing performance according to the subjects' general characteristics, t-test and ANOVA were used. The correlation of the subjects' knowledge, attitude and nursing performance degree was analyzed with Pearson's correlation coefficient. The score of the subjects' dysphagia related knowledge was average 14.07±2.94, the subjects' dysphagia related attitude was average 3.59±0.39, the subjects' dysphagia nursing performance was 3.10±0.43. dysphagia nursing performance had a significantly positive correlation with dysphagia related knowledge(r=0.295, p=.000) and dysphagia related attitude(r=0.392, p=.000). The above result of the study indicated positive attitude based on accurate knowledge is needed for nursing staff's in geriatric hospitals to improve nursing performance for dysphagia. When education programs for dysphagia are planned in geriatric hospitals, it is necessary to consider knowledge level and attitude simultaneously.

The Effect of Height of Cane for Health Promotion on Mobility of Patients with Stroke (뇌졸중 환자의 건강증진을 위한 지팡이 높이가 보행과 체중지지율에 미치는 영향)

  • Seo, Tae-Hwa;Kwon, Sang-Min;Jeong, Yeon-Woo
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.1
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    • pp.207-215
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    • 2019
  • This study examines the effect of the height of cane that hemiplegic patients due to stroke use on their plantar pressure in standing position, gait speed. The study suggests a new standard for appropriate cane height that considers the change of average height of population. Research subjects included 12 patients hospitalized in S Medical Care Hospital located in Gwangju Metropolitan City in South Korea who were diagnosed with stroke. Group A uses a cane of the height of the greater trochanter of femur, group B uses a cane of 5cm above the height of the greater trochanter of femur, and group C is a cane of 10cm above the height of the greater trochanter of femur. In the study result, non-affected side plantar pressure and affected side plantar pressure showed a significant difference among the cases where the cane height was the same as the A group, B group, C group. In the post-hoc analysis result, a significant difference was observed between the case of A group and C group. Gait speed showed no significant difference among the case of the A group, B group, C group. The asymmetry of the stroke affects not only the posture but also the walking that is related to daily life. Changes in the height of the cane did not affect walking speed. The change in the height of the cane showed a change in the weight support ratio, which is thought to have a positive effect on the asymmetry. In future clinical setting, this study result will be able to provide fundamental data regarding the cane height in the standing or walking therapy for hemiplegic patients due to stroke with cane application.

The Effects of Attitude toward Aging and Depression According to Demographic Dharacteristics in Elderly Welfare Facility Users (노인복지시설 이용자의 인구학적 특성에 따른 노화에 대한 태도와 우울에 미치는 영향)

  • Park, Sang-Hoon;Ma, Sung-Ryoung;Lee, Sun-Il
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.2
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    • pp.169-176
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    • 2019
  • The purpose of this study was to investigate attitudes toward aging and depression among elderly welfare facility users. For this purpose, a questionnaire-based survey was conducted with 280 elderly participants in the facilities of 15 institutions in Gyeonggi-do. In total, 258 data points were used for analysis. The measuring instruments used an attitude scale and depression scale for aging. The results of this study are as follows. First, there was no difference in attitude toward aging and depression among elderly welfare institution users by gender. Second, attitudes toward aging among elderly welfare facility users were also assessed according to final educational background. Positive attitudes in general (lack of depression) and positive attitudes toward aging were found to be higher with a higher rate of final academic completion. Third, attitudes toward aging were assessed according to experience with welfare facilities among the elderly, and it was found that depression has a significant impact on perceptions of physical change caused by aging. As a result, even when attitudes toward aging are generally negative, an elderly person cannot be judged to be depressed because this is highly related to final academic completion. Therapists working in welfare facilities for the elderly are more likely to have negative attitudes toward aging and depression when the number of facilities used is lower.