• Title/Summary/Keyword: instrumental characteristics

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A Strategy for the Risk Assessment of Abandoned Mine Filler Materials (비산재가 포함된 폐광산 채움재의 위해성 평가 전략)

  • Ji, Sangwoo;Jo, Hwanju;Shin, Hee-young;Lee, Sang-hun;Ahn, Ji-Whan
    • Resources Recycling
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    • v.28 no.4
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    • pp.59-64
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    • 2019
  • This study suggests a conceptual strategy and methodology for the risk assessment of the domestic abandoned mine fillers with fly ash. The fillers are composed of coal fly ash and solidification materials, and contain little toxic substances such as carbonates but also some heavy metals; therefore, those requires a risk assessment. The risk assessment should primarily focus on estimation of the effects to human health both on carcinogen and non-carcinogen aspects. The significant data such as toxicity and partition coefficients can be obtained from the national soil or mine environmental risk assessment guidelines. Accurate risk assessment of heavy metal contamination in the fillers may consume lots of time and efforts through site survey and instrumental analyses, etc. Moreover, it is inefficient to explore all of the factors as concentrations and categories in every heavy metal in the fillers, due to a high variety and complexity. Therefore, implementation of a preliminary risk assessment is suggested by using the literature data and the basic characteristics of the filler samples prior to the detailed risk assessment. Certainly, this presumes a thorough understanding of reliable sample analysis methods, exposure pathways, and relevant physicochemical and biological mechanisms.

Factors Affecting the View of marriage and Intention to marriage of Female University Students (여대생의 결혼관 및 결혼의향에 영향을 미치는 요인: 경기지역 일부 여대생을 중심으로)

  • So, Mi-Hyun;Kang, Hyun-Sook
    • The Journal of Korean Society for School & Community Health Education
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    • v.22 no.2
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    • pp.53-64
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    • 2021
  • Objectives: The objective of this study is to understand the factors having effects on the view of marriage of female university students, and also to present the reference data for establishing the measures for having the positive view of marriage of female university students. Methods: An online survey was conducted targeting total 254 female university students of two universities in Gyeonggi region, from October 1 st to November 13th 2020. The results of this study are as follows. Results: First, to the question related to the intent to marry, total 70% of them responded that they had intent to marry. In the time of marriage, they said they would marry when getting financially stable. The 30% of subjects said that they would choose non-marriage because they wanted to continuously enjoy free life and they did not want to bear burden related to childbirth and child-rearing. Second, in the results of analyzing differences in the view of marriage according to the general characteristics, the students with intent to marry showed the higher romantic view of marriage, instrumental view of marriage, and exclusive view of marriage than the students without intent to marry, which showed significant differences. Third, the view of marriage were the factors having the greatest effects on the intent to marry of female university students. Conclusion: Based on such results of this study, it would be necessary to focus on the policies that could positively change the view of marriage of female university students. It would be needed to establish the social·institutional support measures for work-life balance by reducing women's burden of childbirth and child-rearing. To the question about the time of marriage, the most subjects responded that they would do so when the economic ability and stable job were equipped. Thus, there should be the systematic youth employment support system that could help the students to quickly and stably enter society and to become financially independent after graduation. Also, for the formation of positive family relation, it would be necessary to develop·operate the educational programs for forming positive family relation and desirable communication methods for each subject(spouse, parents, children, siblings, and etc.).

Development of Korean Version of European Health Literacy Survey (HLS-EU-Q47) and Applied to the Elderly (한국판 건강문해력 측정도구(HLS-EU-Q47) 개발 및 노인 대상 적용)

  • Han, Hee-Won;Park, Sung-Ji;Kang, Ji Sook;Moon, Kyoung-Suk;Kim, JI HEE;Hwang, Jongnam;Oh, Jongmuk;Woo, Hee-Soon
    • Therapeutic Science for Rehabilitation
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    • v.10 no.4
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    • pp.65-80
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    • 2021
  • Objective : This study aimed to develop a Korean version of the HLS-EU-Q47 that deals with the concept of health literacy based on the understanding, apply/use, process/appraisal, and access/obtain to health information. The purpose of this study is to confirm the level of comprehensive health literacy of the elderly in Korea using this tool. Methods : After going through the Korean interpretation process of HLS-EU-Q47, the items were confirmed through content validity verification by experts. The completed Korean-HLS-EU-Q47 (K-HLS-EU-Q47) was applied to 254 elderly people in the local community to analyze the degree of internal consistency and reliability. Furthermore, a comparative analysis based on the general variables was conducted. Results : The internal consistency of this tool for the elderly yielded Cronbach's 𝛼 of .81~.91, indicating a high level of reliability. There was a difference in health literacy according to sex and age based on general characteristics. Men had higher health literacy than women, and with increasing age, health literacy decreased. Conclusion : In this study, the K-HLS-EU-Q47 was developed to assess the comprehensive health literacy level of the elderly in Korea. It is expected that the search for ways to maintain a healthier life for the elderly through understanding the health literacy levels of the elderly using the results of this study will become more active.

A Study on Creative Music Drama Teaching Plans for Pre-service Early Childhood Teachers using Piano Ensemble - Focusing on 'Peter & The Wolf' - (피아노앙상블을 활용한 예비유아교사의 창의적 음악극 지도 방안 - 피터와 늑대를 중심으로 -)

  • Park, Joo-Won
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.1
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    • pp.117-129
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    • 2021
  • Nowadays, the trend of early childhood education has focused on finding educational activities to enhance quality of learning with integrative, learner-centered experience by combining each subject and domain. Pre-service early childhood teacher's music drama activity is a sort of integrated education including literature, instrumental music, play, art and movement that are included in the culture and art for preschoolers to help them understand role and value of the art and directly influence personality and creativity and motive to arouse interest in various learning directly. It's expected to see that development of creative teaching plan for the music drama using piano ensemble could support basic research in integrated educational activity in the teacher training course and also, activate the music drama activity. Research findings and suggestion are as follows. First, the music drama activities are systematically and step-by-step implemented according to the audience according to the cooperative learning and creative plans of pre-service early childhood teachers. Second, if understanding characteristics of casts in the music drama and assigning their roles efficiently, it enhances approach of pre-service early childhood teacher music drama activity and activate it. Third, making music in music drama activities can be composed and arranged to suit the musical literacy and level of pre-service early childhood teacher. Fourth, pre-service early childhood teachers could have integrated experience and evaluation efficiently in the short term to use as reference for the teaching plan and data for the music drama.

Analysis of Research Trend on Cognitive Orientation to daily Occupational Performance (CO-OP) in Korea: A Systematic Review (국내 인지기반 작업수행(Cognitive Orientation to daily Occupational Performance; CO-OP) 중재의 연구 동향 분석: 체계적 고찰)

  • Yoo, Yung-Mee;Choi, Yoo-Im
    • Therapeutic Science for Rehabilitation
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    • v.11 no.4
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    • pp.7-22
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    • 2022
  • Objective : This study aims to provide clinical evidence by systematically reviewing domestic CO-OP intervention studies. Methods : 13 papers suitable for selection criteria were finally selected and conducted. The analysis was divided into general characteristics and qualitative levels. Results : As a result of analyzing the contents of study, research has been conducted continuously since 2015, and the level of evidence for CO-OP intervention study was mainly single subject design. The subjects of the study were applied to both children and adults, and as the target activity areas of CO-OP intervention, children were shown to be play and leisure, and adults were instrumental daily living. COPM/PQRS were frequently used for evaluation to examine effectiveness of interventions. For domain specific strategies, children used body position, attention to doing, task specification, and verbal motor mnemonic. For adults, body position, attention to doing, task specification, and feeling to movement, verbal motor mnemonic, verbal rote script were used. Conclusion : It was found that CO-OP intervention is continuously being applied in occupational therapy, and age and diagnosis group are expanding. It is significant in that it provided evidence for implementing CO-OP interventions in clinical practice through a systematic review of domestic CO-OP intervention studies.

Factors Affecting Dietary Behavior Change of Vulnerable Elderly Based on the Stage of Change (변화단계 이론에 근거한 취약계층 노인의 식 행위 관련 요인분석)

  • Ko, Young;Yim, Eun shil
    • 한국노년학
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    • v.30 no.3
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    • pp.695-708
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    • 2010
  • Purpose: This study was to explore the factors affecting on Dietary Behavior Change of the vulnerable elderly based on the Stage of Change. Methods: This study was a secondary analysis of the data collected from 1,262 elderly who were participated in the case management program. Total 984 participants who responded all questionnaire were included in the analysis. The variables included general characteristics, health behavior, health status, and dietary behavior stage. The data collected were analyzed by descriptive statistics, trend test and multi-variate logistic regressions. Results: about twenty four percent of the vulnerable elderly subject was pre-contemplation stage and 46.1% of them was contemplation stage of dietary behavior. Having a depressive mood, dependance of Instrumental Activity of Daily living, and being medicaid affected on starting or on maintaining healthy dietary behavior in vulnerable elderly negatively. Conclusion: The tailored nutritional intervention depending on dietary behavior stage are needed for the vulnerable elderly to improve the health. The program which can maintain the function remained of elderly and give psychological support together will be more effective.

Estimating the Impact of DMZ Punchbowl Trail as a National Forest Trail on Local Economy using the Regional Input-Output Model (지역산업연관모델을 이용한 국가숲길의 지역경제 파급효과 분석: DMZ펀치볼둘레길을 중심으로)

  • Sugwang Lee;Jae Dong Yang;Jeonghee Lee
    • Journal of Korean Society of Forest Science
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    • v.113 no.2
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    • pp.170-186
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    • 2024
  • This study was conducted to identify the usage characteristics of the DMZ Punchbowl Trail (DPT) as a national forest trail (NFT) and to estimate its ripple effects on the local economy. The objective of this study is to provide policy implications for sustainable operational management. Out of the 500 questionnaires distributed, 215 respondents provided their complete travel itineraries and expenditures. The respondents, mainly aged 50 and above and residing in the Seoul Metropolitan Area, spend 3.5 hours of travel time to the DPT. Together with their families, the respondents typically spend approximately 4 hours for leisurely activities, primarily appreciation of scenic views and relaxation by visiting the "O-yubatgil." Furthermore, they extend their travels to other parts of Gangwon Province, where the DPT is situated. Within Gangwon Province, Yanggu County is the most visited destination. The respondents reported a notably higher average expenditure per visitor compared with the typical local walking tourists. Estimates show that the DPT generates an annual average of KRW 2.1 billion in direct expenditure (based on an average of 10,000 visitors for over five years), KRW 2.8 billion in production, and KRW 1.3 billion in added value, and it has created 40 jobs in Gangwon Province. The results of this study lies in empirically determining the specific economic scale and ripple effects of DPT as an NFT in the major sector, which occupies a significant portion of the Gangwon Province's local economy. The results will be instrumental in validating NFT policies and informing policy making for sustainable forest utilization.

Assessment on Impact Factor for Dehydration of Mine Drainage Sludge Using Flocculant and Dewatering Tube(KOMIR-Tube System) (응집제 및 탈수튜브(KOMIR-Tube 시스템)를 활용한 광산배수 슬러지 탈수 영향인자 평가)

  • Misun Park;Juin Ko;Gwanin Bak;Seunghan Baek
    • Economic and Environmental Geology
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    • v.57 no.2
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    • pp.263-270
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    • 2024
  • In this study, impact factors for dehydration with KOMIR-Tube system using flocculant and dewatering tube were evaluated for mine drainage sludges. The experiments were conducted on semi-active facility sludges with water contents above 90 % using KOMIR-Tube system. The flocculant and input amount were determined from laboratory experiment and the dewatering efficiency was verified onsite experiment. The sludge characteristics were identified by instrumental analysis such as zeta potential measurement, particle size analysis, XRD, XRF and SEM-EDS. Selection of flocculants for sludge dewatering treatment need to consider not only precipitated rate but also filterated rate. Floc size has to keep at least 0.7 mm. From on-site experiments, sludge dewatering using KOMIR-Tube system suggests to carry out April and May that is low rainfall and humidity considering to climate conditions. Also, dewatering rate depends on the crystal degree of mineral that mainly makes up sludges. Particularly, goethite of the iron hydroxides has better dewatering rate than ferrihydrite. Ferrihydrite is low degree of crystallinity and uncleared or broad shaped crystal, goethite is good crystallinity with needle shaped crystal so that the effect of flocculation and dewatering showed to depend on the crystal. In results, impact factors of dewatering for mine drainage sludges are related to flocculant, climate, crystallinity and shape of iron hydroxides.

The Study on The Cyber Communities of Migrant Workers in Korea (한국 이주 노동자의 '사이버 공동체'에 관한 연구)

  • Lee, Jeong Hyang;Kim, Yeong Kyeong
    • Journal of the Korean association of regional geographers
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    • v.19 no.2
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    • pp.324-339
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    • 2013
  • This study aims to investigate the characteristics of cyber communities composed of migrant workers from communities without propinquity in Korea. Its methods are both qualitative and quantitative. It further seeks to discover the relationship between the social capital formed and reproduced within these cyber communities and participants' cultural adaptation to Korean society. The study revealed that ethnic and non-ethnic communities differed in terms of strength of cohesion, space constraints, and links with the outside world. The former showed characteristics of a localized community type. The main motivations for migrant workers' participation in the ethnic cyber community were communication and friendship rather than cooperation and sharing among members. They usually used cyber communication media to communicate with one another. Conversely, the latter showed characteristics of an integrative type. Despite the difficulties in applying for membership and information provided in Korean, a high percentage of migrant workers participated in the community to obtain crucial information. The results did not show a significant correlation between social capital and migrant workers' traits within the cyber community, while a strong correlation emerged among four factors of social capital: faith, norms, networking, and political participation. The study showed that social capital in the cyber community was in direct proportion to an integrative type of cultural adaptation to Korean society. In particular, there was a strong connection between the cultural adaptation exhibited by members of the migrant subculture and their participation in discussions on political issues and human rights, with some migrants even functioning as agents of social change as participants in citizens' movements. The findings suggest that the cyber community facilitates the migrant subculture's communication with and integration into the indigenous Korean culture. Migrant workers' participation in the cyber community is therefore validated as an instrumental practice for members of this subculture to adapt to Korean society.

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Sensory and Instrumental Characteristics of Acorn Starch Mook with Additives (첨가물질에 따른 도토리묵의 관능적${\cdot}$기계적 특성)

  • Choi, Mi-Yong;Cho, Young
    • Korean journal of food and cookery science
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    • v.23 no.3 s.99
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    • pp.346-353
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    • 2007
  • The purpose of this study was to find the optimal mixing ratios of Breen tea power and Opuntia ficus indica var. saboten powder for making acorn starch moot The pH, acidity, color values(L-value, redness, and yellowness), texture properties, and sensory characteristics of the acorn starch moot made with varying contents of the additives were measured. The acorn starch mooks were prepared at different ratios using 0.5, 1, 1.5, 2%(w/w) green tea powder and Opuntia ficus indica var. saboten powder, respectively, based on 9% acorn starch. The overall optimal ratios that satisfied all the sensory properties of the acorn starch moot were 1.5% green tea power and 0.5% Opuntia ficus indica var. saboten powder. The results suggest that the use of green tea and Opuntia ficus indica var. saboten is valuable for making acorn starch moot of good quality.