• Journal of Korean Society of Water and Wastewater
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• v.34 no.5
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• pp.357-371
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• 2020

Microplastics have become a rising issue in due to its detection in oceans, rivers, and tap water. Although a large number of studies have been conducted on the detection and quantification in various water bodies, the number of research conducted on the removal and treatment of microplastics are still comparatively low. In the current research, the inflow and removal of microplastics were investigated for various drinking water treatment plants around the world. Addition to the investigation of filed research, a survey was also conducted on the current research trend on microplastic removal for different treatment processes in the drinking water treatment plants. This includes the researches conducted on coagulation/flocculation, sedimentation, dissolved air flotation, sand filtration and disinfection processes. The survey indicated mechanisms of microplastic removal in each process followed by the removal characteristics under various conditions. Limitations of current researches were also mentioned, regarding the gap between the laboratory experimental conditions and field conditions of drinking water treatment plants. We hope that the current review will aid in the understanding of current research needs in the field of microplastic removal in drinking water treatment.

• Korean Journal of Human Ecology
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• v.18 no.2
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• pp.363-379
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• 2009

The purpose of this study is to provide a meaningful thought to professionals and administrators of Korea working for Consumer General Education development at their Universities. Also, tips for organizing and meaning Consumer General Education Curriculum effectively are provided. Finally, the study suggests essential elements to improve qualities of Consumer General Education in Korea Universities. This study's method are content analysis through web site and survey. The subjects of this survey were 257 students. The data were collected by questionnaire developed by researcher and analyzed by frequencies, correlation Analysis, One Way Anova, Duncan Test, Factor Analysis, Multiple Regression Analysis. The major findings were as follows: University students's satisfaction level about General Education was low and the needs level about Consumer General Education was high. And the education service quality showed factors to be administrative service element, professor service element, classroom environment element, communication element. And Multiple Regression Analysis on each of the education service quality factors had been significant effects for find out the differences in the degree of satisfaction.

• Hwankyungkyoyuk
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• v.18 no.3 s.28
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• pp.19-32
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• 2005

This paper examines procedure of informal institute-public school collaboration in an elementary school and analysis environmental effects of informal institute-public school collaboration that follows up curriculum based environmental education programs. The purpose of this program is to improve environmental knowledge, attitudes of elementary students. Partnership between informal environmental Institute(NGO's) and public elementary school teachers established through program. Teachers are encouraged to be involved in student's activities and program assesment. The program we discuss here is a community collaboration project that combines environmental and outdoor education based on school curriculum and student's regional properties. The aim of the study was to describe environmental educational-based school-community partnerships and to examine the advantages and limitations for such collaborations. Qualitative and Quantitative Data are collected and analysed. Outcomes of this program are very positive. Students who were participated in this program gained more environmental awareness, attitude, knowledge, skills and affection to their region. More this programs were helpful to teachers who were participated. Further study needs to practice an exemplary collaboration and development of local school-community partnerships, which yields a blueprint for more productive collaboration in other communities.

• Journal of Korean Society for Geospatial Information Science
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• v.14 no.1 s.35
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• pp.85-91
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• 2006

Recently, slope failures are happen to natural disastrous when they occur in mountainous areas adjoining highways in Korea. The accidents associated with slope failures have increased due to rapid urbanization of mountainous areas. Therefore, Regular maintenance is essential for all slope and needs maintenance of road safety as well as road function. In this study, we take priority of making a database of risk factor of the failure of a slope before assesment and analysis. The purpose of this paper is to recommend a standard of Slope Management Information Sheet(SMIS) like as Hazard Map. The next research, we suggest to pre-estimated model of a road slope using Logistic Regression Model.

• Journal of the Ergonomics Society of Korea
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• v.22 no.1
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• pp.57-67
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• 2003

The resonance behaviour needs be understood to identify the mechanisms responsible for the dynamic characteristics of human body, to allow for the non-linearity when predicting the influence of seating dynamics. and to predict the adverse effects caused by various magnitudes of vibration. However, there are currently no known studies on the effect of vibration magnitude on the transmissibility to thoracic or lumbar spine of the seated person. despite low back pain(LBP) being the most common ailment associated with whole-body vibration. The objective of this paper is to develop a proper mathematical human model for LBP and musculoskeletal injury of the crew in a maritime vehicle. In this study, 7 degree-of-freedom including 2 non-rigid mass representing wobbling visceral and intestine mass, is proposed. Also. when compared with previously published experimental results, the model response was found to be well-matching. When exposed to various of vertical vibration, the human model shows appreciable non-linearity in its biodynamic responses. The relationships of resonance for LBP and musculoskeletal injury during whole-body vibration are also explained.

• Research in Community and Public Health Nursing
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• v.20 no.3
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• pp.371-380
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• 2009

Purpose: This study aimed at describing the characteristics and nursing needs of vulnerable families in a City. Methods: A total of 427 vulnerable families enrolled in the Visiting Health Care Center in K-gu of S city were investigated in this study. Data were collected using questionnaires for one year from Jan to Dec, 2003, and analysed using mean, standard deviation and $x^2$. Results: Most of the vulnerable families investigated here showed many deficits, especially incomplete family structure (62.8%), financial problem (84.0%), lack of support (55.8%) were prevalent. The score of level of economic status in Family Capability for Self management ($1.95{\pm}0.65$) was lowest, and the score of perception of family problem and health of family members ($2.62{\pm}0.78$) was highest. The four family groups divided according to the total score of family management capability showed significant differences in family interaction, support, and coping domain. The total score of family management capability increased as family functioning-related problems decreased in the vulnerable families. Conclusion: In order to find vulnerable families, and improve their family function, it is required to develop the systematic assesment tools, community supportive systems and nursing interventions for family strength.

• Korean Journal of Community Nutrition
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• v.19 no.4
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• pp.372-385
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• 2014

Objectives: The purpose of this study was to develop web-based self-nutrition management u-Health program for diabetic patients (DMDMG: Diabetes Mellitus Dietary Management Guide) for achieving systematic self-management of diet. Methods: The program consisted of five parts with different contents according to the results of needs assessment. Five major parts were 1) meal management part which contains calorie prescription, meals recording and dietary assessment, 2) prevention of disease part with information of diabetes and assessment of dietary behavior, 3) dietary behavior modification part with an education on dietary behavior modification plan and dietary behavior plan, 4) meal plan containing a training section for meal plan and self constructing part for meal planning by making tables, and 5) information about myself which composed with general and physical information. The system proposed in this study provides nutrients intake results right after input of diet intake, which is possible with simultaneous calculation of input data in the server with 3,495 food and 1,821 meal data base. The nutrients analysis program was evaluated with 26 diabetic patients with two-day 24 hr recall. Results: The differences of nutrients intakes between DMDMG and CANPRO 3.0 ranged from 13.5-16.5%, which was caused by the differences of databases of the two programs. The characteristics of DMDMG were; 1) it can provide an interactive tailored nutrition management, 2) it is a practical tool of diabetes nutritional management, 3) the program gives motivation for the dietary behavior modification. Conclusions: The effectiveness of whole program needs to be conducted, but the program was an innovative tool for self-management of nutrient intakes, diet behaviors, meal management and tailored nutrition education.