• Advances in nano research
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• 제12권6호
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• pp.549-566
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• 2022

Mining of ore minerals (sfalerite, cinnabar, and chalcopyrite) from the old mine has led in significant environmental effects as contamination of soils and plants and acidification of water. Also, nanoparticles (NP) have obtained global importance because of their widespread usage in daily life, unique properties, and rapid development in the field of nanotechnology. Regarding their usage in various fields, it is suggested that soil is the final environmental sink for NPs. Nanoparticles with excessive reactivity and deliverability may be carried out as amendments to enhance soil quality, mitigate soil contaminations, make certain secure land-software of the traditional change substances and enhance soil erosion control. Meanwhile, there's no record on the usage of Nano superior substances for mine soil reclamation. In this study, five soil specimens have been tested at 4 sites inside the region of mine (<100 m) to study zeolites, and iron sulfide nanoparticles. Also, through using Artificial Neural Network (ANN) and Extreme Learning Machine (ELM), this study has tried to appropriately estimate the mechanical properties of soil under the effect of these Nano particles. Considering the RMSE and R2 values, Zeolite Nano materials could enhance the mine soil fine through increasing the clay-silt fractions, increasing the water holding capacity, removing toxins and improving nutrient levels. Also, adding iron sulfide minerals to the soils would possibly exacerbate the soil acidity problems at a mining site.

• 디지털융복합연구
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• 제10권3호
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• pp.191-196
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• 2012

현재 모바일 또는 유비쿼터스 시스템을 포함한 하이테크 통신 기술의 중요성과 관련된 비즈니스 분야는 성장세를 거듭하고 있다. 개인적 삶의 질을 제고하기 위한 웰빙의 의미에서, ICT 기술은 선택이 아니라 필요 사항이 되고 있다. 본 연구의 첫 번째 목적은 u-휘트니스에 대상으로 TAM의 수용과 관련된 사용자의 인지된 유용성과 사용 용이성에 영향을 미치는 요소들을 인식한다. 이는 다중회귀분석을 통하여 그 사용자 행위에 영향을 미치는 요인을 탐색한다. 이러한 분석 결과와 연계하여 본 연구의 두 번째 목적은 QFD 방법을 사용하여 그 u-헬스 시스템에의 적용 가능성을 제시한다. 즉 본 연구는 QFD 방법을 사용하여 사용자 요구사항과 관련된 특성에 그 TAM의 외부 변수들을 결합할 수 있다는 가능성을 제안하는데 있다. 이러한 연구 결과에 근간하여 그 적합한 시스템이 구축되고 개발될 수 있을 것이다.

• 융합정보논문지
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• 제8권6호
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• pp.251-256
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• 2018

최근 급속한 고령화로 인해 고령사회에 대비하는 다양 한 연구가 진행 되고 있다. 증가하는 노년층을 위한 실버산업으로 웰니스, 독거노인 모니터링 및 지원 서비스, 응급 의료 지원 서비스가 성장하고 있지만 경제적 문제로 인해 부분적으로 제공 되고 있다. 또한 고령사회의 문제로 노년층의 거주 문제와 고령 환자의 돌봄 문제도 해결되어야 할 중요한 문제로 부각되고 있다. Aging in Place는 시설 거주에서 나타나는 지역이탈, 통제적 커뮤니케이션, 자립 상실의 문제를 해결하기 위한 대안으로 부상하고 있다. 본 논문에서는 ICT 기반 Aging in Place 정보 확장 지원을 위한 IoT 환경 구축을 제안한다. Aging in Place 지원을 위한 IoT 환경 구축을 통해 사용자는 익숙한 환경에서 노후를 맞을 수 있는 서비스를 제공 받을 수 있다. 제안 방법은 이용자의 정보를 기반으로 자립 할 수 있는 환경을 구축하고 고령자를 위한 의료, 교통, 생활지원 서비스를 제공한다.

• 문화기술의 융합
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• 제7권3호
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• pp.115-122
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• 2021

본 연구는 헤어미용전문대학생들을 대상으로 전공만족도와 자기효능감이 진로준비행동에 영향을 미치는 요인을 규명하기 위함이다. 연구대상은 G지역 헤어미용전문대학에 재학 중인 남·녀대학생 173명을 대상으로 2021년 3월 10일부터 25일까지 설문조사를 실시하였고, 그 중 150부를 최종적으로 SPSS.WIN 22.0 프로그램을 이용하였다. 첫째, 헤어미용전문대학생의 전공만족도가 진로준비행동에 직접적인 영향을 미치는 것으로 검증되었다. 둘째, 헤어미용전문대학생의 진로준비행동을 하는데 있어서 전공에 대한 만족도와 자기효능감이 매우 중요한 영향을 미친다는 것으로 나타났다. 셋째, 헤어미용전문대학생의 자기효능감이 진로준비행동에 직접적인 영향을 나타내어서 유의한 영향관계가 있는 것으로 조사되었다.

• 대한간호학회지
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• 제10권1호
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• pp.57-64
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• 1980

The purpose of the study was to find out the relationship between experienced stressful events and its coping behavior within mentally wellness and illness, and to define the effective coping method under the stressful situation. By doing so, during the period of April, 1978- to March, 1979 the objects of this study were 100 persons who were under the psychiatric facilities in their first hospitalization, and who were registered in psychiatric out patient department in the form general hospitals located at Seoul selected as a experimental group. As a control group 100 persons who never experienced psychiatric treatment who were not under the current medical treatment, and who were tarring appropriate social roles in their community were selected, and in both groups utilized questimaires for Social Readjustment Pating Scale and Coping Scale. This study was tested by X$^2$ examinationand by F-ratio（analysis of variance). Results were as follows : Hypothesis 1. The actually experienced life events were expected to be higher in the experimental group than in the control group, but they did not show the significant difference between the groups.（ p >0.05) Thus hypothesis 1 was rejected. Hypothesis : 2. The stress scores were expected to be higher in the experimental group than in the control group, and also did show the significant difference between the groups ( p< 0.05）. Therefore hypothesis 2 was supported. Hypothesis 3. The non-effective coping behavior were expected to be higher in the experimental group than in the control group, and also did show the significant difference between the two groups(p < 0.001). Also hypothesis 3 was supported. Hypothesis 4 . The higher stress score groups (above 250 LCU ) were expected to utilize non.effective coping method more frequently than in the lower stress score groups (below 249 LCU ), and not only they showed high in utilizing non-effective coping method but also showed high in utililzing effective coping method. Thus hyphothesis 4 was partially supported. (p < 0.001) The following are drawn out based on the result of this study that the stress scores were higher, and more utilized non-effective coping method in the emotionally disturbances than in the emtionally healthies.

• 한국융합학회논문지
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• 제8권1호
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• pp.13-18
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• 2017

유비쿼터스 스마트 헬스케어에서 융합기술 급격히 발달하고, 이동식 모바일 장치가 보급됨에 따라 사용자는 스마트 헬스 플랫폼을 통해 의료 정보를 손쉽게 얻을 수 있게 되었다. 이러한 급격한 산업화, 웰니스 케어, 고령화 사회, 정보화 사회, 질병양상 및 생활습관의 변화, 의약분업 실시 등에 따라, 사용자 중심의 건강관리 및 건강증진 콘텐츠가 제공되고 있다. 이에 본 논문에서는 스마트 헬스를 위한 마이닝 기반의 정신 건강과 혈압 관리 서비스를 제안한다. 제안하는 방법은 마이닝 기반의 스마트 헬스 플랫폼에서 정신 건강관리 서비스와 혈압관리 서비스를 만성질환자를 위해 제공한다. 사용자는 PHR 기반의 스마트 헬스 플랫폼에서 시간과 장소에 구애 받지 않고 최적화된 건강관리 서비스를 제공받는다. 제안한 마이닝 기반의 정신 건강과 혈압 관리 서비스의 성능평가 결과, F-검증에서 우수한 성능을 보인다.

• Journal of Nutrition and Health
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• 제56권3호
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• pp.330-347
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• 2023

Purpose: This study identified words closely associated with the keyword "dietary supplement" (DS) using big data in Korean social media and investigated consumer perceptions and trends related to DSs before (2019) and after the coronavirus disease 2019 (COVID-19) pandemic (2021). Methods: A total of 37,313 keywords were found for the 2019 period, and 35,336 keywords were found for the 2021 period using blogs and cafes on Daum and Naver. Results were derived by text mining, semantic networking, network visualization analysis, and sentiment analysis. Results: The DS-related keywords that frequently appeared before and after COVID-19 were "recommend", "vitamin", "health", "children", "multiple", and "lactobacillus". "Calcium", "lutein", "skin", and "immunity" also had high frequency-inverse document frequency (TF-IDF) values. These keywords imply a keen interest in DSs among Korean consumers. Big data results also reflected social phenomena related to DSs; for example, "baby" and "pregnant woman" had lower TD-IDF values after the pandemic, suggesting lower marriage and birth rates but higher values for "joint", indicating reduced physical activity. A network centered on vitamins and health care was produced by semantic network analysis in 2019. In 2021, values were highest for deficiency and need, indicating that individuals were searching for DSs after the COVID-19 pandemic due to a lack an awareness of the need for adequate nutrient intake. Before the pandemic, DSs and vitamins were associated with healthcare and life cycle-related topics, such as pregnancy, but after the COVID-19 pandemic, consumer interests changed to disease prevention and treatment. Conclusion: This study provides meaningful clues regarding consumer perceptions and trends related to DSs before and after the COVID-19 pandemic and fundamental data on the effect of the pandemic on consumer interest in dietary supplements.

• 복식문화연구
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• 제11권5호
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• pp.778-792
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• 2003

This study is to review, in the social and cultural context, the main causes for the sportism that prevails in modern fashion, and to analyze the typical expressions in the domestic fashion. Many factors attribute to the advent of sportism such as rapid development and cultural changes toward sports, increase in leisure time and abundant opportunities, new fashion materials resulting from new technologies, emerging youth culture and increasing preference for such culture, and the postmodernism. With this background, sportism, which has been appearing in the domestic fashion, falls into 5 categories as follows based on the type of its expression. “Urban Street Sportism” is affected by the new sports culture of urban young people, which is characterized such that body line is disregarded with over-sized garment in layered style without considering T.P.O. concept. “Romantic Sportism” applies colors, fabrics and details of romantic images to sporty items, or culminates the feminine and elegant sportism by using the sporty fabrics and details along with romantic items. “Vintage Sportism” is characterized by its well-refined, high quality expression of naturally worn for long time, which is affected by the postmodernism. “Urban Utility Sportism,” which is developed with such design factors as fabrics, styles, details and colors with emphasis on their utility and functionality, explicitly accommodates the changed modern life styles particularly in urban areas. Lastly, the military image, which was developed during the Iraq War along with simultaneous anti-war activities, and the peace messages, which deliver the mankind's hope for the world peace and social wellness, formulate the “Military Sportism”.

• 융합보안논문지
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• 제22권1호
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• pp.135-140
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• 2022

본 연구는 스마트 디바이스와 기술을 활용한 운동 사례와 이슈를 분석하고 기존의 실버세대와 달리 높은 활동력과 경제력을 지닌 액티브시니어의 웰니스 라이프에 적합한 향후 스마트 운동 환경의 발전 방향을 제시하고자 하였다. 피트니스 산업에서도 필요한 운동도구나 서비스, 디지털 콘텐츠 등을 정기적으로 받아보거나 이용하는 구독경제가 확장되고 있는 추세이며, 하드웨어 판매와 콘텐츠 구독을 기반으로 한 비즈니스 모델이 계속 등장하고 있다. 액티브시니어에게 건강관리를 위한 통합적인 운동 서비스를 제공하는 플랫폼으로서의 가치경쟁력을 갖추기 위해서는 피트니스센터 뿐만 아니라 홈트레이닝 운동기구, 피트니스 관련 애플리케이션, 스마트 웨어러블 디바이스 시장 등이 유기적으로 연결되어 확장된 토털 플랫폼으로서의 모습을 이루어야 할 것이다. 개인별 건강상태에 알맞은 운동프로그램을 제안 받고 선택하여 운동 전, 후, 운동 중 웨어러블 디바이스를 통해 지속적인 모니터링과 피드백에 따른 운동프로그램에 실시간 변화를 주는 디지털 헬스케어 기능 연동이 스마트 피트니스 모델의 차별적 요소이다.

• 마케팅과학연구
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• 제18권4호
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• pp.33-59
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• 2008

This paper aims to analyse the preference for German farm tourism among the German population. For this reason, we conducted an empirical study in Germany during summer 2007 and we applieda structural equation model based on partial leasts quares(PLS) to analyse the data. In the following chapters we will introduce the literature review and our conceptual frame work. We will then outline the procedures we adopted and the results of the empirical analysis. In the final part so me conclusions will be presented and a discussion will follow in order to draw the future directions of our research. According to our hypotheses, the possibility that agri-tourism enters in the evoked set of an individual is higher: H1: The higher the information degree about it. H2: The lower the influence of the social stimuli. H3: The higher the physical exposure to it (experience). H4: The higher the wellness image of agri-tourism. H5: The higher the traditional image of agri-tourism. H6: The higher the exciting image of agri-tourism. H7: The higher the perceived value for money. Our further hypotheses affirm that the possibility that agri-tourism enters in the evoked set of an individual is higher: H8: The lower the perceived risk. H9: The higher the motive to enjoy a holiday in the nature. H10: The higher the motive to enjoy a sport holiday. H11: The lower the motive to have an organized holiday. H12: The lower the motive to have a holiday abroad. H13: The lower the motive of action and night life. H14: The higher the motive to spend a holiday with the family. H15: The lower the motive to spend a city holiday. Finally, our model has some socio-demographics data. As we mentioned before, German agri-tourism has traditionally been the travel destination of large-size families, with low-to-middle income. For that reason, our final hypothesises are the following: the possibility that agri-tourism enters in the evoked-set of an individual is higher: H16: The higher the number of family members. H17: The lower the family income. Since in this study we use a path model with a PLS approach, we are able to state some interrelations among the exogenous latent variables: H18: The motive of sport holiday has a positive influence towards nature motives. H19: The physical exposition to agri-tourism has a positive influence toward information. H20: The motive of family holiday has a negative influence toward the motive of action and night life. H21: Social stimuli have a positive influence towards individuals risk perceptions. H22: Social stimuli have negative influence towards experience. Data for this study were gathered via administrated questionnaires during the summer 2007 within the frame of an academic "marketing research" course. The corresponding t-values are assessed using the bootstrapping method with 500 re-samples. In our model 61% of the degree of appreciation of German agri-tourism (evoked set) is explained by five independent variables: value for money ($0.335^{{\ast}{\ast}{\ast}}$) (H7) experience ($0.267^{{\ast}{\ast}}$) (H3), exciting image ($0.204^{\ast}$) (H6) organisation ($-0.162^{\ast}$) (H11) and holiday abroad ($-0.156^{\ast}$) (H12). The variance explained ($R^2$) for the other endogenous variables are the following: nature 24.3%, information 14.1%, action holiday 13.8%, risk perception 5.8% and experience 2.4%. An overview can be inferred from table 5. The results also allow us to test each of the proposed hypotheses. With exception of organization and abroad, none of the others travel style factors (H9 to H15) seem to have any significant impact towards evoked set which leads to the rejection of the respective hypotheses. As expected, social stimuli have a significant influence on individuals' risk perception (H21 accepted), however neither the former nor the latter have a valuable impact on evoked set (rejection of H2 and H8). Besides, since the influence of social stimuli towards experience is not significant, also H22 has to be rejected. Experience influences information (H19 accepted) but the latter does not affect significantly the evoked set (H1 rejected). Both H4 as well as H5, referring respectively to the perceived images of German agri-tourism as a wellness destination and the traditional image of the German farm tourism have to be rejected. Finally, none of the demographic data included in the model explains significantly the variance of the factor evoked set. Therefore neither H16 nor H17 has been accepted. As far as the interrelation between sport and nature (H18) and family and action (H20) are concerned, the stated relationship among these variables has been statistically confirmed. Our path model based on partial least squares shows the factors influencing the preference for farm tourism in Germany. Among others value for money and experience are the most significant ones. Practical implications are discussed.