• Title/Summary/Keyword: quantitative research methods

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A Comparative Study of Healthy City Project Evaluation in U.K. and Korea: Focusing on Liverpool City and Wonju City (영국과 한국의 건강도시 사업 평가방법 비교 연구: 리버풀과 원주시를 중심으로)

  • Kang, Shin Hee;Nam, Eun Woo;Moon, Ji Young
    • Korean Journal of Health Education and Promotion
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    • v.30 no.2
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    • pp.93-103
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    • 2013
  • Objectives: This study was to compare two healthy cities, Liverpool in England and Wonju in Korea, which evaluated healthy city projects and to reorient evaluation strategy which fits into Korean Healthy cities. Methods: Comparatives analysis was used by reviewing documents, healthy city plan and evaluation report, of two cities. Results: Healthy city projects in two cities, fifteen programs were identical items among twenty-seven but there were differences in seven items for Liverpool and five items for Wonju. In Liverpool evaluation was done by a stakeholder group called Liverpool Local Involvement Network(LINK), while in Wonju by Yonsei Healthy City Research Center. The evaluation tool was two types; quantitative and qualitative analysis. Liverpool mostly used qualitative and added quantitative, vice versa in Wonju. Conclusions: Evaluation plan for Healthy city projects need to be made in the first phase of the projects, instead of in the end. Moreover, it is important to include stakeholder in conducting qualitative analysis for unquantifiable evidence of effectiveness, as well as quantitative analysis.

A Quantitative Evaluation on Developmental Organization of Technical Proposals (기술제안서의 개발조직 부문에 관한 정량적 평가)

  • Choo, Kyung-Kyun;Kwon, Young-Kap;Rhew, Sung-Yul
    • Journal of Information Technology Services
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    • v.3 no.1
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    • pp.21-41
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    • 2004
  • The technical proposal suggested and published by MIC(Ministry of Information and Communication, henceforth MIC) contains too general assessment elements, which causes qualitative and subjective assessment of technical proposals. Thus, in terms of the technical proposal assessment. It lacks In fairness, validity and accuracy. Furthermore, it has a great deal of difficulty in assessment caused by the inconsistency between proposal planning and assessment methods. Also, each company has different writing format, so it is impossible to make use of its maneuvering data for the assessment. To overcome these weaknesses, our research focused on a quantitative evaluation on development organization, which is a part of organizational and administrative part of the technical proposal suggested and published by MIC. In this research, we divided development organization for the technical proposal into organization, teams, and team members, and then studied addition, deletion and merging for the assessment criteria. For the related study, we chose especially CMM(Capability Maturity Model) from a lot of international and national references, which is a model measuring the maturity of organization, and then we focused on Small-CMM which is available in the small-sized organization. We also suggested input form, description method, assessment elements for the quantitative assessment in the chosen developmental organization, and finally we proposed standard referencing criteria for the assessment. Our study concludes that our assessment method are valid and available in comparison with the previous Delphi method through a validity evaluation test.

A Study on the Evaluation Methods of IRDS for Screening the Industrial Design Proposals (IRDS 시스템에 의한 디자인 컨셉트의 평가방법 연구)

  • 우흥룡
    • Archives of design research
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    • v.20
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    • pp.51-58
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    • 1997
  • This paper aims to aid a practical evaluation for screening out the design proposais under applying the IRDS system, which is developed a computer aided industrial design system as a computer application system. In this study, the author adopted 3 evaluation methods with criteria which have quantitative and qualitative attributes : the Intuitive Evaluation Methods(X), the Accumulative Evaluation Method(Y), the Benchmarking Evaluation Methods(Z). The results show that the 3 Methods have reciprocal relationships under reliability(r=0.0001). In analysis on the properties of the evaluation methods, the Evaluation Method (X) shows rapidity especially, the Evaluation Method (Y); relativity, the Evaluation Method(Z); importance respectively. The correlation analysis between the evaluation methods makes the null hypothesis denying, then we could adapt the research hypothesis. Therefore the correlation between them has positive relationship, and it shows thicker than the result of the 1st study.

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Predicting Damage in a Concrete Structure Using Acoustic Emission and Electrical Resistivity for a Low and Intermediate Level Nuclear Waste Repository

  • Hong, Chang-Ho;Kim, Jin-Seop;Lee, Hang-Lo;Cho, Dong-Keun
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.19 no.2
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    • pp.197-204
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    • 2021
  • In this study, the well-known non-destructive acoustic emission (AE) and electrical resistivity methods were employed to predict quantitative damage in the silo structure of the Wolsong Low and Intermediate Level Radioactive Waste Disposal Center (WLDC), Gyeongju, South Korea. Brazilian tensile test was conducted with a fully saturated specimen with a composition identical to that of the WLDC silo concrete. Bi-axial strain gauges, AE sensors, and electrodes were attached to the surface of the specimen to monitor changes. Both the AE hit and electrical resistance values helped in the anticipation of imminent specimen failure, which was further confirmed using a strain gauge. The quantitative damage (or damage variable) was defined according to the AE hits and electrical resistance and analyzed with stress ratio variations. Approximately 75% of the damage occurred when the stress ratio exceeded 0.5. Quantitative damage from AE hits and electrical resistance showed a good correlation (R = 0.988, RMSE = 0.044). This implies that AE and electrical resistivity can be complementarily used for damage assessment of the structure. In future, damage to dry and heated specimens will be examined using AE hits and electrical resistance, and the results will be compared with those from this study.

Physical and Chemical Analysis of Epimedii Herba by the Packaging Methods and Storage Periods (포장방법 및 보관기간에 따른 음양곽의 이화학적 분석)

  • Seo, Chang-Seob;Kim, Jung-Hoon;Lee, Sullim;Kim, Seong-Sil;Kim, Sun-Min;Shin, Hyeun-Kyoo
    • Korean Journal of Pharmacognosy
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    • v.50 no.4
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    • pp.312-317
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    • 2019
  • In order to obtain basic data on the shelf life of Epimedii Herba (EH), a physicochemical characteristics including weight loss rate, loss on drying, ash, acid-insoluble ash, and quantitative determination were evaluated to compare the data by packaging methods including general (G), general + silica gel (GS), alumium (AL), and alumium + silica gel (ALS) packaging and storage periods (0-66 months). All physicochemical analyzes were conducted using the method of "The Korean Pharmacopoeia (KP) 9th edition". As a result, weight loss rate (%), loss on drying (%), ash (%), acid-insoluble ash (%) of EH according to the packaging methods and storage periods were -0.27-4.73%, 3.06-9.35%, 5.48-7.37%, and 0.45-0.99, respectively. In the quantitative analysis of icariin, the marker compound of EH using high-performance liquid chromatography, the initial content was 0.44% at 0 month in all packaging methods. After that, the result of analyzing the content of icariin every 6 months was detected 0.44-1.18%. All of the above results satisfied the acceptance criteria for loss on drying, ash, acid-insoluble ash, and quantification contained in the KP. This study can be used as a basic data for establishing the packaging method and shelf life of EH.

Molecular Identification and Real-time Quantitative PCR (qPCR) for Rapid Detection of Thelohanellus kitauei, a Myxozoan Parasite Causing Intestinal Giant Cystic Disease in the Israel Carp

  • Seo, Jung-Soo;Jeon, Eun-Ji;Kim, Moo-Sang;Woo, Sung-Ho;Kim, Jin-Do;Jung, Sung-Hee;Park, Myoung-Ae;Jee, Bo-Young;Kim, Jin-Woo;Kim, Yi-Cheong;Lee, Eun-Hye
    • Parasites, Hosts and Diseases
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    • v.50 no.2
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    • pp.103-111
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    • 2012
  • Intestinal giant-cystic disease (IGCD) of the Israel carp (Cyprinus carpio nudus) has been recognized as one of the most serious diseases afflicting inland farmed fish in the Republic of Korea, and Thelohanellus kitauei has been identified as the causative agent of the disease. Until now, studies concerning IGCD caused by T. kitauei in the Israel carp have been limited to morphological and histopathological examinations. However, these types of diagnostic examinations are relatively time-consuming, and the infection frequently cannot be detected in its early stages. In this study, we cloned the full-length 18S rRNA gene of T. kitauei isolated from diseased Israel carps, and carried out molecular identification by comparing the sequence with those of other myxosporeans. Moreover, conventional PCR and real-time quantitative PCR (qPCR) using oligonucleotide primers for the amplification of 18S rRNA gene fragment were established for further use as methods for rapid diagnosis of IGCD. Our results demonstrated that both the conventional PCR and real-time quantitative PCR systems applied herein are effective for rapid detection of T. kitauei spores in fish tissues and environmental water.

The Competitiveness of Soc Trang Ecotourism Associated with Khmer Culture

  • LONG, Nguyen Thanh
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.10
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    • pp.1107-1117
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    • 2020
  • Tourism is considered one of the key economic sectors in Vietnam as it helps to promote the economic development, increase foreign exchange earnings, create jobs, and improve the living standards of local people. So, this study aims to identify factors affecting the competitiveness of Soc Trang ecotourism associated with Khmer culture based on a combination of qualitative and quantitative research methods. Qualitative research was conducted through focus group discussions with experts, and quantitative research was conducted through direct interviews with visitors at ecotourism sites in Soc Trang province. The study involves questionnaire surveys and multivariate data analysis methods (Cronbach's Alpha test, EFA, CFA, SEM). Research results from 350 respondents demonstrate that all factors have a positive impact on the competitiveness of ecotourism associated with Khmer culture in Soc Trang province. It shows that the competitiveness of ecotourism associated with Khmer culture is influenced by five factors, including: (1) religious ritual customs of the Khmer people; (2) ecotourism infrastructure; (3) traditional festival activities of Khmer people; (4) culinary culture of Khmer people; and (5) folk ritual customs of the Khmer people. From these findings, the study offers some managerial implications to improve the competitiveness of Soc Trang ecotourism associated with Khmer culture.

A Model and Simulated Annealing Algorithm for the Multi-factor Plant Layout Problem (다수요인을 가진 설비배치문제를 위한 모형과 simulated annealing 알고리즘)

  • 홍관수
    • Journal of the Korean Operations Research and Management Science Society
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    • v.20 no.1
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    • pp.63-81
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    • 1995
  • This paper presents a model and algorithm for solving the multi-factor plant layout problem. The model can incorporate more than two factors that may be either quantitative or qualitative. The algorithm is based on simulated annealing, which has been successfully applied for the solution of combinatorial problems. A set of problems previously used by various authors is solved to demonstrate the effectiveness of the proposed methods. The results indicate that the proposed methods can yield good quality for each of eleven test problems.

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A Study on Recent Trends of Hospital Management Research in Korea (병원경영 관련 분야의 연구경향 분석)

  • Jung, Yumin;Lee, Sujung;Kim, Minji;Lee, Sunhee
    • Korea Journal of Hospital Management
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    • v.21 no.2
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    • pp.1-12
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    • 2016
  • This study examines academic research trends and the change of patterns by analyzing researches related to hospital management registered in Korea Citation Index(KCI) from 2010 to 2014 and offers basic information for interests and future research demands in the field of hospital management As research subjects, a total of 694 published articles were selected. It's to analyze them by dividing into research topics, methods and author's characteristics, and to present them by classifying the period into 2010-2011, 2012-2013, 3rd quarter of 2014 since there was no significant difference in the result between adjacent years. As a result, Korean Journal of Hospital Management has accounted for the highest published rate year after year. In the research topic analysis, it showed a decreasing trend in these research topics as medical marketing and patient satisfaction which became the biggest issue in 2010-2011 significantly were lower in 2014, but an increasing trend in job satisfaction, job stress, labor administration and workforce productivity. The most frequently cited keywords were hospital employees, job satisfaction, organizational commitment, job stress, turnover intention. According to the research method analysis, the survey was the most popular method for data collection. However, Interview and medical records as data sources showed a decline trend. As analysis methods, multivariate analysis of quantitative methods was most used. Finally, as a result of analyzing main author's characteristics, the ratio of the authors belonging to health administration and nursing departments of the academic world increased gradually. In the regional distribution, organizations in Seoul are most common, those in Daegu Gyeongbuk areas, foreign organizations showed a tendency to decrease. This is the first study to examine the annual trend on hospital management-related research issues among articles published in domestic journal and we found qualitative and quantitative advances in hospital management research filed.

Comparison Between Semi-Quantitative Frequency Methods and 7-day Dietary Records Methods in Food and Nutrition Intake Status For Hemodialysis Patients (혈액투석환자 대상 반정량적 식품섭취빈도 조사법과 7일간 식사기록법을 이용한 일상 식품과 영양소 섭취수준 비교)

  • Ryu, Dong-Ryeol;Kim, Jung-Hyun;Kim, Hyun-Jung;Kyung, Min-Sook;Park, Jung-Tak
    • Korean Journal of Community Nutrition
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    • v.22 no.5
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    • pp.426-440
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    • 2017
  • Objectives: The valid assessment of food and nutrients intakes using appropriate dietary intake method is necessary to improve the nutritional status of the hemodialysis (HD) patients. This study was conducted to compare the method between newly developed, semi-quantitative food frequency questionnaire (Semi-FFQ) and 7-day dietary records (7-DRs) for hemodialysis patients. Methods: We conducted both methods on 53 maintenance HD patients in two university hospitals. We calibrated the frequency, portion size and daily intake of 47 food items reported in Semi-FFQ. The food and nutrients intake was compared and the correlation of the two methods was analyzed. Also each nutrient intake was compared to recommended dietary allowance for Korean (KDRIs) and recommended nutrient reference value for HD patients. Results: Energy and energy-yielding nutrients intakes were significantly higher in the two methods (p<0.01). These support the possible reliability between Semi-FFQ and 7-DRs that is similar with regard to most mineral and vitamin intakes. Thus, the Semi-FFQ used in this study for the assessment of nutrient intakes of HD patients can be reliable for the assessment of the nutrient intake along with the 7-DRs. The correlation coefficients were higher for foods consumed daily, such as steamed rice, meat and chicken, bean, egg, milk, coffee and alcohol than for those of foods eaten rarely (p<0.01). Conclusions: The Semi-FFQ used in this study can be a reliable tool for the assessment of the HD patients' nutrient intake along with the 7-DRs, despite its limitations.