• Title/Summary/Keyword: Science and technology issues

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An Analysis on Operational Conditions of Non-Profit Organizations for the North Korean Defector (북한이탈주민을 위한 비영리단체의 운영 실태분석)

  • Choi, Hee;Kim, Youngsoon
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.3
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    • pp.31-41
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    • 2017
  • Through the evolutionary process of the North Korean defector support policies, this research investigates the background behind the formation of non-profit organizations for the North Korean defectors and to identify and understand the problem through their characteristics and functions. Starting from 1990, with an increase in the North Korean Defectors' population as well as the introduction of multicultural society, various environmental factors, such as the domestic socio-environmental changes, resulted an increase in number of private organizations. However, not to mention the size and functions of the organizations, some do not even have required legal organizational structures in place. Their business activities, in some cases, are irrelevant to the original purpose and objectives. Moreover, the fact that 83% of the North Korean Defectors Organizations are based in Seoul while 25.5% of the North Korean Defector residing in Seoul, inevitably make the reputation of the organizations to be illegal and dishonest due to the excessive level of competitions among the similar types of organizations. In reality, the organizations show lack of growth in the areas such as securing necessary employments to the Defectors or providing educations to the youth, who will eventually become the future leaders, in building the awareness capacity toward the unification. These results show that, in conducting their activities, the organizations must be aware of the rights and responsibilities as the constituents of the society, plus the government's practical efforts in improving these issues are also necessary.

Development and Research of MMA Waterproof Coating and Waterproof System for Concrete Civil Structures (콘크리트 토목구조물 교면용 MMA 도막방수재 및 교면방수 시스템의 개발 연구)

  • Chul-Woo Lim;Sang-Ho Ji;Ki-Won An
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.12 no.2
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    • pp.128-134
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    • 2024
  • Asphalt-based waterproofing materials for bridge decks face issues such as softening or liquefaction of the material during the process of pouring hot asphalt concrete on top of the waterproofing layer. This leads to instability and reduced thickness of the waterproofing layer. To address these problems, new solutions beyond the existing materials, including the development and adoption of new materials, are required. Therefore, this study investigates the properties of MMA(Methyl Methacrylate) coating waterproofing material, which meets the basic physical properties for bridge deck waterproofing. We examined the overall quality standards in a system where the substrate concrete, waterproofing material, and paving layer are integrated. The study confirmed the applicability of MMA coating waterproofing material on bridge decks. The results indicate that a stable application of MMA coating waterproofing material for civil engineering structures' bridge decks can be achieved with a mix ratio of hard MMA resin : soft MMA resin : powder = 6 : 34 : 60. Additionally, when using emulsified asphalt with hardening characteristics for the adhesion between the dissimilar materials of MMA waterproofing and asphalt concrete, it is expected to meet the minimum quality standards of the Ministry of Land, Infrastructure, and Transport's 'Guidelines for Asphalt Concrete Pavement Construction (2021.07)'.

The Prayer Experiences of Patients with End-Stage Cancer (말기암환자의 기도 경험)

  • Park, SoonBok Esther;Lee, Won Hee;Oh, Kyong Hwan
    • Journal of Hospice and Palliative Care
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    • v.20 no.1
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    • pp.26-36
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    • 2017
  • Purpose: To explore the meaning of prayer in Korean patients with end-stage cancer who profess Christianity or Buddhism, given the significant differences between these religions. Methods: The Colaizzi (1978) analysis method was employed. In-depth interview were performed with 13 participants (seven Christians and six Buddhists) who were admitted to a University-affiliated hospital in Korea. Results: The six categories emerged: 1) communication with God, 2) mind discipline, 3) spiritual growth, 4) mysterious experiences, 5) perception of death and after-life, and 6) various forms of prayers. Conclusion: The participants' prayer experiences were described in a religious context. Christians believed that prayer is communication with God while Buddhists regarded it as disciplining of minds. Despite some differences between the religious groups, a general meaning of prayer was a desperate desire to solve their health issues by relying on God or someone who is more powerful than themselves. They also experienced personal and spiritual growth through prayer. This study explains the phenomenon of prayer experiences and shows that prayer is an important coping mechanism.

Evaluation of construction era of Pungnabtoseong earthen wall, Seoul by using OSL dating (OSL 연대측정을 통한 풍납토성 축조연대 산출)

  • Kim, Myung-Jin
    • Analytical Science and Technology
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    • v.25 no.5
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    • pp.324-332
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    • 2012
  • Construction era of Pungnabtoseong earthen wall is one of the most popular controversial issues in Korean archaeological research. For the evaluation of construction era, OSL dating was carried out using seven pottery pieces collected in each construction stage. From TL/OSL characteristics, and the results of absolute zeroing test and recovery test, it was proved that the pottery samples were completely bleached. The reliable paleodose was evaluated by using the SAR method with preheat at $220^{\circ}C$, and the pottery OSL age was determined from the ratio of paleodose to annual dose rate. Considering the resultant OSL ages, archaeological context and the related 14C ages, the first construction era was determined as $294{\pm}52$ yrs AD ($1{\sigma}$ SE). Also we found that the enlargement of construction stage III was $328{\pm}30$ yrs AD ($1{\sigma}$ SE) and final construction was finished within $400{\pm}76$ yrs AD ($1{\sigma}$ SE). Therefore, it is suggested that the construction of Pungnabtoseong earthen wall was firstly started in the late $3^{rd}$ century AD and several enlargements and repairs had been carried out, before the transfer of the capital of Baekje dynasty to Woongjin (Gongju) at 475 AD.

The Effect of Experiential Aspect of Meaning out on Improvement of Self-esteem and Subjective Well-being (미닝아웃의 체험적 측면이 자아존중감과 주관적 안녕감 향상에 미치는 영향)

  • Jeong, Yun-Hee;Kang, So-Young
    • Journal of Convergence for Information Technology
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    • v.12 no.3
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    • pp.108-115
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    • 2022
  • Recently, consumers are showing interest in social and environmental issues. In addition, consumers are increasingly participating in meaning-out that give meaning to their consumption and express moral values. However, unlike the spread of meaning-out, existing studies are lacking. This study approaches meaning out, which has become a recent issue, from an experiential point of view, and aims to study how the experiential characteristics of meaning out affect psychological effects such as improvement of self-esteem and subjective well-being. First, we hypothesized that the experience of meaning out(feel, think, act, relate) had an effect on subjective well-being through improvement of self-esteem. We tested the hypothesis on a total of 197 data using the structural equation model. As a result, it was found that three experiences excluding 'feel' have a positive effect on the improvement of self-esteem, and and improved self-esteem had a positive effect on improving subjective well-being. This study expands existing studies and provides practical implications by confirming that meaning out has a positive psychological effect.

Investigating the Influence of ESG Information on Funding Success in Online Crowdfunding Platform by Using Text Mining Technique and Logistic Regression

  • Kyu Sung Kim;Min Gyeong Kim;Francis Joseph Costello;Kun Chang Lee
    • Journal of the Korea Society of Computer and Information
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    • v.28 no.7
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    • pp.155-164
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    • 2023
  • In this paper, we examine the influence of Environmental, Social, and Governance (ESG)-related content on the success of online crowdfunding proposals. Along with the increasing significance of ESG standards in business, investment proposals incorporating ESG concepts are now commonplace. Due to the ESG trend, conventional wisdom holds that the majority of proposals with ESG concepts will have a higher rate of success. We investigate by analyzing over 9000 online business presentations found in a Kickstarter dataset to determine which characteristics of these proposals led to increased investment. We first utilized lexicon-based measurement and Feature Engineering to determine the relationship between environment and society scores and financial indicators. Next, Logistic Regression is utilized to determine the effect of including environmental and social terms in a project's description on its ability to obtain funding. Contrary to popular belief, our research found that microentrepreneurs were less likely to succeed with proposals that focused on ESG issues. Our research will generate new opportunities for research in the disciplines of information science and crowdfunding by shedding new light on the environment of online micro-entrepreneurship.

Comparison of Section Speed Enforcement Zone and Comparison Zone on Traffic Flow Characteristics under Free-flow Conditions in Expressways (자유류 상태에서 고속도로 구간과속단속구간 및 대조구간 간의 교통류 특성 비교)

  • Shim, Jisup;Jang, Kitae;Chung, Sung Bong;Park, Shin Hyoung
    • Journal of Korean Society of Transportation
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    • v.33 no.2
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    • pp.182-191
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    • 2015
  • The Korean government introduced an automated speed enforcement system (ASES), which uses traffic enforcement cameras, to counteract safety issues that are caused by speeding. As the information of the traffic enforcement camera locations is provided to the drivers via navigation systems and mobile applications in a timely manner, drivers can avoid enforcement by momentarily diminishing their speeds only near the camera locations. To prevent drivers' evasional behavior and improve the effectiveness of ASES, section control, which enforces speeding vehicles by measuring their average travel speeds over a stretch of road and checking against the speed limit, has been recently implemented. In this study, Section Speed Enforcement Zone and Comparison Zone are compared in terms of traffic stream characteristics under free flow conditions. To this end, loop detector data were obtained from the three study sites and analyzed. The study results demonstrated that drivers maintain their speeds below the speed limit over the enforcement section with a lower variance of speeds.

Classical testing based on B-splines in functional linear models (함수형 선형모형에서의 B-스플라인에 기초한 검정)

  • Sohn, Jihoon;Lee, Eun Ryung
    • The Korean Journal of Applied Statistics
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    • v.32 no.4
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    • pp.607-618
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    • 2019
  • A new and interesting task in statistics is to effectively analyze functional data that frequently comes from advances in modern science and technology in areas such as meteorology and biomedical sciences. Functional linear regression with scalar response is a popular functional data analysis technique and it is often a common problem to determine a functional association if a functional predictor variable affects the scalar response in the models. Recently, Kong et al. (Journal of Nonparametric Statistics, 28, 813-838, 2016) established classical testing methods for this based on functional principal component analysis (of the functional predictor), that is, the resulting eigenfunctions (as a basis). However, the eigenbasis functions are not generally suitable for regression purpose because they are only concerned with the variability of the functional predictor, not the functional association of interest in testing problems. Additionally, eigenfunctions are to be estimated from data so that estimation errors might be involved in the performance of testing procedures. To circumvent these issues, we propose a testing method based on fixed basis such as B-splines and show that it works well via simulations. It is also illustrated via simulated and real data examples that the proposed testing method provides more effective and intuitive results due to the localization properties of B-splines.

A study on the development of hydrocortisone certified reference material in cosmetic cream using isotope dilution-mass spectrometry (동위원소희석-질량분석법을 이용한 화장품 크림 중 히드로코르티손 인증표준물질 개발 연구)

  • Chae-Hong Lee;Ji-Sun Huh;Eun-Ji Jeong;Hyun-Ah Kim;Min-Young Eom
    • Analytical Science and Technology
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    • v.37 no.3
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    • pp.166-173
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    • 2024
  • Steroids have a temporary skin improvement and whitening effect by controlling vasodilation, but they also cause side effects when used for a long time. Therefore, steroids were designated and managed as raw materials that cannot be used in cosmetics in Korea. However, steroids are continuously being detected in cosmetics, causing social issues. In this study, we developed a certified reference material (CRM) for the determination of steroids such as hydrocortisone in cosmetics. A cream-type cosmetic CRM was manufactured and subsequently certified following the guidelines outlined in ISO Guide 35. Homogeneity, short-term stability, and long-term stability were evaluated using isotope dilution mass spectrometry (ID-MS). The certified values were determined by using NIST's primary reference material to ensure traceability. From now on, we intend to supply the certified reference material as a cosmetic CRM to national and international companies, as well as research institutes after certification as certified reference material from KOLAS and registering on COMAR.

Clarifying the concept of praxis in Family and Consumer Science Education -In focusing of the concept of phronesis in Aristotle's Nicomachean Ethics- (아리스토텔레스의 덕론에 기초한 가정과교육에서의 실천 개념 고찰을 위한 시론 (I) -실천적 지혜(phronesis)와 다른 덕과의 관계에 대한 논의를 중심으로-)

  • Yoo, Tae-Myung
    • Journal of Korean Home Economics Education Association
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    • v.19 no.2
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    • pp.13-34
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    • 2007
  • This study approached the concept of practical or praxis in Family and Consumer Science based on the review of the concept of phronesis in Aristotle's Nicomachean Ethics. Aristotle divided human soul into rational part and irrational part. A virtue related with rational part is intellectual virtue and a virtue related with irrational part is moral virtue. Rational part is divided into calculative part and scientific part. Phronesis is one of an intellectual virtue in calculative part of soul. Aristotle defines phronesis as a state of soul that issues in praxis. Phronesis in narrow sense is a virtue which leads to praxis and it is differ from either sophia or techne. Phronesis in broad sense it includes both praxis and poiesis. Phronesis is closely related with moral virtue. Because moral virtues are habits according to right reason, hence right reasons should be considered, and this is intellectual virtue. It is called for attention that what the concept of practical or praxis in Family and Consumer Science Education should be for the determination of the relation with Practical Arts and Technology. This study proposed a tentative conceptualization of praxis and phronimos in context of Family and Consumer Science Education.clothing planning and the most categories(83.3%) had connections of repetitions. In the clothing material section, categories evaluated as gaps and developments were 55.6% and 44.4%. The clothing construction.

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