• Title/Summary/Keyword: Qualitative case Study

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A Sludge Collector Selection Model by Life Cycle Cost Analysis (LCC분석에 의한 슬러지수집기 선정 모델)

  • Lee, Seung-Hoon;Woo, Yu-Mi;Lee, Sung-Rak;Koo, Kyo-Jin;Hyun, Chang-Taek;Hong, Tae-Hoon
    • Korean Journal of Construction Engineering and Management
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    • v.7 no.6
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    • pp.175-184
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    • 2006
  • This study focused on developing Life Cycle Cost(LCC) analysis model for selecting sludge collectors in wastewater treatment system and applying the model to a case study. Cost items are examined through literature review and historical data of a facility. Analysis period, discount rate, energy cost escalation ratio are assumed to reasonable level. Monetary evaluation is performed using historical data and estimations from vendors. Sensitive analysis is executed using Monte Carlo Simulation for assumed factors. Interviews with operators, vendors, constructors, managers are conducted to define factors which indicates ease of maintenance, ease of delivery, technical performance, efficiency, environmental friendship. Factors are representing technical and social factors. Results from LCC analysis and qualitative analysis are evaluate together with Weighted Matrix Evaluation Methods for optimum alternative of sludge collectors.

Improvement of Sustainable National Park Management System: focusing Establishment of Management Based Environmental Capacity (지속가능한 국립공원의 관리체계 개선방안: 환경용량 기반의 u-Park 체계 수립을 중심으로)

  • Son, Min-Ho;Lee, Woo-Kyun;Song, Chul-Chul
    • Journal of Environmental Policy
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    • v.5 no.4
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    • pp.51-84
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    • 2006
  • The current study suggested plans to maintain excellent natural environment of national parks by prohibiting excessive use and introduced the concept of environment capacity using GIS. This paper is that researches on National Parks in the past studied were mostly on the natural resources, human resources, facilities and visitors as well as standard for management of these issues from individual perspective, this study defined concept of integrated (principle of overlay) carrying capacity. It also estimated environmental ecological conservation value considering ecological conservation and environment-ecological index and estimated visit attraction index based on attraction value of nature and facilities in the parks. And it suggested management index as a management plan for effective analysis and management of carrying capacity. As a result, in case of Mt. Jiri National Park, Grade 5 area requiring inducement occupied 71% while Grade 1 area requiring dispersion occupied 0.1%, which means the necessity of appropriate dispersion in the site. Moreover, this research aims to find a monitoring method, utilizing the concept of ubiquitous, for the continuous systematic monitoring on immense natural resources, facilities, and visitors. The continuable national park management plan was proposed by establishing quantitative, and qualitative objective of the environment capacity from the decision based on GIS public opinions from the gathered information. Through the GIS public opinion system and ubiquitous based technology, I propose the effective management technology method for national park.

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Usefulness Evaluation of Application of Metallic Algorithm Reducing for Beam Hardening Artifact Occur in Typical Brain CT Image (머리 CT영상에서 흔히 발생하는 선속경화인공물 감소를 위한 금속인공물감소 알고리즘 적용의 유용성 평가)

  • Kim, Hyeon ju
    • Journal of the Korean Society of Radiology
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    • v.12 no.3
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    • pp.389-395
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    • 2018
  • The study attempted to use computed tomography images to determine the usefulness of the reduction in the axial reduction algorithm in the event of a metallic artifacts reduction in the image of the beam-hardening effect, which is known as the most effective method of reducing metallic artifact reduction in the image and the reduction of the metal produced in this study. As a result, the result is increased to 140 kVp to reduce the value of the CT value by 0.02 to 0.05 %, resulting in decreased axial effect (P > 0.05). The CT value decreased from 12.4 to 26.9 % when applied to the reduction of the metallic. 12.4 to 26.9 % (p<0.05). In addition, in the qualitative assessment by the clinical trial evaluation, it was assessed as 1.8 points after applying the MAR algorithm, In the resolution of resolution and contrast evaluations, the estimation of the decrease in metallic artifact effects was assessed as the metal was assessed to be scored 7.2 points after the MAR algorithm was evaluated. Therefore, in case of artifacts due to irreversible beam hardening effect, it is useful to reduce artifacts caused by beam hardening effect by using various methods derived from existing researches and scanning by applying the metal artifact reduction algorithm proposed in this experiment.

A Study on the Effective VTS Communications Analysis by the Method of VCDF in Busan Port (VCDF 방식을 통한 효율적인 VTS 통신 데이터 분석에 관한 연구 - 부산항을 대상으로 -)

  • Kim, Bong-Hyun;Park, Young-Soo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.22 no.4
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    • pp.311-318
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    • 2016
  • The VTS concept was located as a principal methods of maritime safety administration in world's major harbors and expected to become the pivotal role for the future of the maritime and harbor society with e-Navigation epoch. If recent limelight concept of big-data has been included in aspect of information gathering and analysis with various studies, it's required advanced studies to improve the information analysis capability and application range of the data that can be mining by the VTS. In this study, contrast to other studies that aimed quantitative analysis as communication number, it can be mining the time information and each of the communication VTS for the target vessel, including qualitative analysis, such as the purpose or the type of communication. This comparison across multiple items of the collected information, and presenting the VTS data mining model (VCDF) that can be analyzed for the purpose of analyzing way, type and number of communication by ship's type, also number of violations through VTS communication. First, In Busan port case, it shows frequently information service and shows frequently communicating with particular types of vessels. Second, Passive VTS carried out notwithstanding many kinds of traffic violations due to communication congestion. This arranged information can be used as data for the analysis, as possible the level of traffic for VTSO situational awareness, which pointed to the 'workloads' in 'IALA Guideline' and could be used as a database for future research of e-Navigation.

Photo Comics Courses targeting Mothers of Developmentally Disabled Children: A Case Study (발달장애 어머니 대상의 <포토툰 수업> 사례연구)

  • Kwon, Kyoung-Min
    • Cartoon and Animation Studies
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    • s.50
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    • pp.131-151
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    • 2018
  • Notwithstanding various discourses among scholars on the unique characteristics of comics, in Korea there is nevertheless a scarcity of quality research on the subject. Therefore, to promote quality research, it is important to consider how to best use source materials in the field of comics scholarship. Source materials can generally be categorized into three types: pre-existing comics, scholar-generated comics and user-generated comics. For this study, user-generated comics are the primary source materials, specifically comics created by mothers of children with disabilities. It is intended that this research will contribute to the future direction of education for mothers who suffer from a relative sense of alienation as the primary caregivers of children with special needs. Although therapeutic arts and cultural programs make a tremendous difference in the lives of these mothers, teaching methodology and educational opportunities are extremely limited. Furthermore, existing scholarship focuses primarily on either the psychological transformation of the individual or a phenomenological approach for parents to understand and deal with the problematic behavior of children with disabilities. However, this research does little to help improve learning programs for these parents. Against this backdrop, this research sets out to consider the potentiality and effectiveness of using comics in the education of mothers of children with disabilities. These mothers, by creating comics, develop better awareness of themselves in a positive and enriching way. It is therefore hoped that this research provides a useful analysis for developing the potentiality and effectiveness of these programs.

A Case Study on Application of the NABI Program to Realize the 'Practice Centered Mechanism of Manifesting Character' ('실천 중심 인성 발현 메커니즘' 구현을 위한 NABI 프로그램의 적용 사례)

  • Park, Dahye;Park, Jongseok
    • Journal of The Korean Association For Science Education
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    • v.36 no.6
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    • pp.947-957
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    • 2016
  • Today, in accordance with emphasizing the importance of character education, science educators have tried to implement character education in the field of science education. Therefore, this research aims to confirm the possibility of the realization of 'Practice Centered Mechanism of Manifesting Character' developed on the basis of character education theory through the application of the NABI Program based on Nature-Study. For this, the NABI program was applied to 24 3rd grade students of an elementary school for a period of ten months. Qualitative data was collected like students' reports, journals, and video recording of the classes. This data was classified into 'value, judgment, action,' the steps of 'Practice Centered Mechanism of Manifesting Character,' and text was written by interpreting the data. The research resulted in the following: First, students formed 'value' by making a connection with the objects. And the various values - individual, interpersonal, social, ecological, and spiritual - are formed according to the type of objects with which the students felt a connection to. Second, students need to judge the problems of the real world at the 'judgment' step. Third, at the 'action' step, students practice moral behavior in relation to the sympathy or feeling they felt with the objects that they made a connection to. In conclusion, 'Practice Centered Mechanism of Manifesting Character' can be realized through the application of the NABI Program. The NABI Program can be a definite way to implement character education in the field of science education.

A Study on Cost-Benefit Analysis for Geographic Information (국토지리정보의 비용편익(B/C) 분석)

  • Kim, Kye-Hyun;Park, Hong-Gi;Kim, Kwang-Ju;Choi, Hoon-Sung;Song, Yong-Cheol;Park, Tae-Og
    • Journal of Korean Society for Geospatial Information Science
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    • v.10 no.4 s.22
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    • pp.85-93
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    • 2002
  • Since the National Geographic Information System(NGIS) project of 1995, the geographic information projects have been promoted in various areas such as central and local governments. In the fact that large scale budget has been invested to geographic information projects as a national policy, the cost-benefit analysis would be essential to enhance the efficiency of the resource allocation. In this circumstance, this study analyzes the costs and benefits of geographic information produced by NGI(National Geography Institute). As a result of the cost-benefit analysis, the total amount of benefits were estimated approximately 620 million dollars and the accumulated ratio of the cost to benefit was 1 to 4.4. Also, the internal ratio of the benefit was 38%, which justified the large scale investment. In case of adding qualitative benefits which can not be measured in a quantitative term, the overall benefits from using such geographic information would be much higher than quantitative benefits. Further research work is required for more objective verification of the large scale national project such as building nationwide geographic information.

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Opportunities and Challenges for Multi-Level-Stakeholder Participation in Community-Based Ecotourism Development: The Case of the Boabeng-Fiema Monkey Sanctuary, Ghana (지역사회 기반 생태관광 개발에서 다양한 이해 관계자들의 참여 기회와 도전: 가나 Boabeng-Fiema 원숭이 보호구역 사례를 중심으로)

  • Owusu, Victor;Boafo, Yaw Agyeman
    • Journal of the Economic Geographical Society of Korea
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    • v.21 no.1
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    • pp.53-68
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    • 2018
  • Community-based ecotourism (CBE), if well-developed can be a practical approach for promoting socio-economic well-being and sustaining ecological resources. The growth and its development worldwide especially in developing economies is a welcome development. The study aimed at assessing the Boabeng-Fiema Monkey Sanctuary in Ghana, as an example of traditional conservation system of management that has ensured greater community participation, equity, inclusiveness, and multi-level stakeholder partnership. In-depth interviews with key informants and documentary analysis of relevant peer reviewed and grey literature were the main qualitative data collection used. Results revealed that majority of the interviewees support and value the current system of traditional management. The enforcement of rules and regulations and other cultural and religious practices were discussed by key informants. Opportunities for multiple livelihood strategies as a result of the CBE is seen as critical for increasing local's acceptance and participation. The remarkable growth of the sanctuary, as well as the increase in human population, has created a shortage of land for domestic and other commercial purposes which is identified as posing a major challenge to the sustenance of the sanctuary. The study recommends diversification of livelihood opportunities presented by the presence of the sanctuary like the introduction of homestay concept, craft making- wood carving, painting, artisan shops.

Development of the Critical Pathway for Cesarean Section Patient (제왕절개술 환자를 위한 Critical Pathway 개발)

  • Chung Kyung-Hee;Jang Keum-Seung
    • The Journal of Korean Academic Society of Nursing Education
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    • v.4 no.1
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    • pp.66-80
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    • 1998
  • With the opening of healthcare market, the health care environment in Korea is anticipating a drastic change. In this Internationally open market environment, it is necessary to introduce a systematic health care plan and DRG system which offer qualitative medical services as well as reduced cost. Purpose of this study is to develop and test the critical pathway for Cesarean section patient in the way to be possible the integrated inpatient management. It was adopted the process of six phases to develop the critical pathway as the theoretical framework implemented by Johns Hopkins Hospital, Maryland, U.S.A. In the first phase, make a selection of diagnosis/procedures to develop. In the second phase, organize a development team consisted of eight expertises working in maternity nursing area. In the third phase, analyze the overall medical service offered to patient through review medical records and decided the service content and the implementation period for the Cesarean section patient. In the forth phase, make out a preliminary critical pathway after verification of expert group on content validity. In the fifth phase, validity operate to ten Cesarean section patients to test implementation in practice by using the preliminary critical pathway, In the sixth phase, defined the final critical pathway. The result of this study was as follows. 1. There were classified 8 categories as monitoring/assesment, treatment, medication, activity, diet, test, consult, education/discharge plan for vertical axis and showed hospital stayed from admission to discharge for horizontal axis of critical pathway through analysis 68 Cesarean section patients medical records. 2. After critical review 68 medical records to make out a preliminary critical pathway, hospital stays for horizontal axis were showed 6 days, mean hospital stays were 7.5 days, 2.1 days were to be taken operation after admission and 4.2 days were stayed until discharge after operation. 3. After making out a questionare in 90 items of a medical service content of eight categories and verifying the content validity of expertises, the 85 items of the preliminary critical pathway were selected by expertises agreement over 88% and modified or deleted 5 items showing agreement below 75%. 4. After verifying a validity to 10 patients for 4 weeks, hospital stays were 5.9 days. There were deleted 1 item and modified or supplemented the 9 items of the 10 items.

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Use of music to facilitate verbal and nonverbal expression for older adults in the hospice care (호스피스 환자들의 언어적·비언어적 표현 증진을 위한음악적 활용)

  • Chong, Hyun Ju;Choi, Sung Yoon
    • Journal of Music and Human Behavior
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    • v.2 no.1
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    • pp.35-46
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    • 2005
  • Older adults in the hospice care experience difficulties in expressing their emotional and psychological issues, which has detrimental effect in their well-being. The purpose of this study is to examine how music can be used to facilitate self-expression both verbally and nonverbally in order to decrease negative influences of self-concealment. Four cases were referred from hospice personnel at the hospital, and received music therapy sessions for four month. The total number of session varied from 9 to 11 depending on the conditions of each case. Both qualitative and quantitative data were collected from pre and post test of Self-Concealment Scale and Personal Descriptive Essays. The results indicated that the use of music, especially programed songs were effective in evoking emotional responses with various life-related issues and themes. The posttest indicated that the level of self-concealment has decreased, and also the Personal Descriptive Essays involved increased statements of emotional content after music therapy implementation. The study indicates that music can be used as an significant communicative and expressive medium when working with older adults in the hospice or palliative care, since they experience many difficulties to be engaged in the active expression. Music provide both passive and active experience through listening and participating, and programed music therapy intervention will increase the quality of life through expressive music activities.

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