• Journal of Nutrition and Health
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• 제50권2호
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• pp.121-132
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• 2017

Purpose: This review was performed to establish a reference intake of water for Korean (KDRI-water) adults in 2015 by examining current knowledge of the relationship between water intake and health and the general status of water intake and loss. We expect that this study will be utilized for further refinement of KDRI-water. Methods: Documents were searched using RISS, NDSL, DBPIA, CINAHL, and Pubmed with the keywords 'water intake, water supply, water ingestion, hydration, dehydration, water balance, and fluid balance'. Results: Water balance is essential for the maintenance of health. Based on this assumption, numerous studies have been performed to investigate the association of water intake with several diseases such as urolithasis, obesity, diabetes, and cancer as well as other health problems, including constipation, cognition, and fetal weight. Effects of water intake for prevention or relief of these health problems vary. Water is supplied to the body by eating foods and drinking liquids such as plain water and beverages. Metabolic water is another source of water input. Water is lost through urine, skin, respiration, and feces. KDRI-water 2015 was set by adequate intake (AI) based on water intake volume, which was the sum of water intakes from foods and fluids reported by the Korea National Health and Nutrition Examination Survey, with extra milk intake of 200 mL. AIs in some age groups were modified considering their estimated energy requirements. Conclusion: Accurate data of water intake is critically important for the establishment of KDRI-water. Therefore, improvement of systems investigating water intake is required, and more studies on the status of water intake and loss in Korean people are needed for definite KDRI-water establishment.

• 한국식품과학회지
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• 제31권1호
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• pp.252-256
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• 1999

한우육의 사태(M. Semitendinosus)를 대상으로 감마선 조사선량(0, 1, 3, 5, 10 kGy)에 따른 지질성분과 항산화 효소 활성도 및 ${\alpha}-tocopherol$ 함량의 변화를 측정하였다. 총 콜레스테롤, LDL-콜레스테롤, HDL-콜레스테롤 및 중성지질 함량에서는 비조사군과 조사군간에 유의적인 차이를 보이지 않았다(p>0.05). 항산화 효소의 활성에서 GST, catalase, SOD 역시 비조사군과 조사군간에 유의적인 차이를 보이지 않았다(p>0.05). 한편, 등심부위의 ${\alpha}-tocopherol$ 함량은 감마선 조사선량이 증가함에 따라 유의적으로 감소되었다(P<0.05).

• 대한지역사회영양학회지
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• 제16권1호
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• pp.75-85
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• 2011

The purpose of this study was to investigate basic data on the degree of parents' recognition and satisfaction with the use of environment-friendly agricultural products. The conclusions of this study are as follows. The survey on the use of environment-friendly products in households showed that 68.7% of the respondents used environment-friendly products at home. The frequency of purchasing organic products by household consumers showed that 25.1% of the respondents bought organic products one to two times per week. The most popular items of the environment-friendly agricultural products used were vegetables, comprising 63.9%. The households with more than 3,000,000 won of monthly income tended to consume more domestic livestock products (p < 0.05). In comparison to general agricultural products, environment-friendly agricultural products users showed higher satisfaction level with a better quality in term of safety, quality, nutrition, taste, appearance, diversity and price. The degree of satisfaction with safety was the highest ($3.8{\pm}0.68$), and price showed the lowest ($2.76{\pm}0.79$). The degree of parents' recognition of the governmental support for environment-friendly agricultural products showed that those who were aware of the supporting policy were 44.5%, but 55.5% of them didn't know about the fact that 46.6% of the respondents agreed that environment-friendly agricultural products should be used in more than 50% of the foods used for school food service. The respondents pointed out that vegetables (45%) sprayed with pesticide are the most urgent food item that need to be replaced by environment-friendly farm products.

• 패션비즈니스
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• 제23권1호
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• pp.14-24
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• 2019

Various types of functional bedding for inducing and maintaining sleep, are developed and launched with the importance of improving health through sleep emphasized currently. The purpose of this study is to examine development status and direction of functional bedding in the $4^{th}$ Industrial Revolution era, through systematic classification of elements of IoT-based smart bedding cases actively developed as functional bedding at home and abroad. Through previous research, literature and Internet data, characteristics and functional extension of smart bedding and the background of smart bed development was analyzed. And it was analyzed that smart bedding pursues recent functionalism and convergence of physical and digital concept such as IoT or AI, and also mental value to improve sleep quality. As bedroom where smart bedding place in has the private and limited characteristics and users are in sleep-conscious, that hard to ensure power and discomfort in carrying are moderated and the aesthetic elements are not very important, and that the smart bedding performance while sleeping were affected on developmental background. Based on CES case study and analysis on how smart beds are functionally expanded from conventional bedding, smart beds have gained information through digital sensing, and common properties that can be controlled anytime, anywhere, using a smart phone. Some set up the right environment and pose, while others stimulate nerves directly as active intervention. It is expected that smart bedding will be developed to cure user's body and mind, through active intervention when sleeping.

• 한국정보통신학회논문지
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• 제23권2호
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• pp.173-178
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• 2019

최근 스마트 홈, 스마트 보안, 스마트 팩토리 등 IoT 환경에서 생성, 수집, 계측되는 데이터의 종류 및 양이 증가하고 있다. IoT 서비스를 위한 요소기술에는 원하는 정보를 측정하기 위한 센서 장치, 해당 장치를 컨트롤할 수 있는 임베디드 소프트웨어, 측정된 데이터를 송수신할 수 있는 네트워크 프로토콜, 수집된 데이터를 분석/저장할 수 있는 빅데이터 및 인공지능 기술이 필수적이다. 본 논문에서는 다양한 IoT 장치에서 활용되고 있는 다양한 네트워크 프로토콜을 하나의 통합된 장치에서 처리할 수 있는 장치 개발에 초점을 맞추고 있으며, 이를 실현하기 위한 이기종 네트워크 인터페이스 IoT 게이트웨이를 제안한다. OpenWrt 기반의 유무선 공유기를 활용하였으며, 무선 센서 네트워크 프로토콜의 IP기반 통신을 위해 6LoWPAN 스택을 이용하여 BLE와 IEEE 802.15.4 통신 모듈을 연동하였고, 자체 개발한 파이썬 기반 미들웨어를 이용하여 Z-Wave, LoRa 통신 모듈에서 송수신 되는 패킷을 IP 패킷을 변환하여 전송하는 기능을 개발하였다. 개발된 IoT 게이트웨이가 IoT 빅데이터를 효과적으로 수집할 수 있는 장치로 활용될 수 있을 것으로 기대한다.

• 한국인터넷방송통신학회논문지
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• 제20권6호
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• pp.51-58
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• 2020

시각장애인의 대다수는 독립적인 의생활을 하는데 어려움을 겪는다. 최근 스마트 가전 시장의 성장으로 가구나 가전에 인공지능이나 IoT를 추가하는 제품이 늘어나고 있다. 본 논문에서는 시각장애인의 독립적인 의생활을 지원하기 위해 옷장 내부를 관리하는 기능, 음성 대화를 통해 정보를 요청하는 음성인식 기능 그리고 CNN 알고리즘을 이용한 옷 정보에 대한 인식 기능을 가진 스마트 옷장을 제안한다. 본 논문에서는 옷을 인식하는 과정에서 정확도를 높이기 위해 모델의 층 개수를 변경하고 Maxpooling을 조정하여 모델을 생성하였다. 모델 생성 시 Early Stopping Callback 옵션을 적용하여 학습 정확도를 보장해주었다. 과적합을 방지해주기 위하여 Dropout을 추가했다. 이러한 과정으로 만들어진 최종 모델은 옷 인식 정확도가 80%가 되는 것을 확인할 수 있다.

• Nutrition Research and Practice
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• 제15권sup1호
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• pp.110-121
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• 2021

BACKGROUND/OBJECTIVES: Coronavirus disease 2019 (COVID-19) cases were first reported in December 2019, in China, and an increasing number of cases have since been detected all over the world. The purpose of this study was to collect significant news media reports on food services during the COVID-19 crisis and identify public communication and significant concerns regarding COVID-19 for suggesting future directions for the food industry and services. SUBJECTS/METHODS: News articles pertaining to food services were extracted from the home pages of major news media websites such as BBC, CNN, and Fox News between March 2020 and February 2021. The retrieved data was sorted and analyzed using Python software. RESULTS: The results of text analytics were presented in the format of the topic label and category for individual topics. The food and health category presented the effects of the COVID-19 pandemic on food and health, such as an increase in delivery services. The policy category was indicative of a change in government policy. The lifestyle change category addressed topics such as an increase in social media usage. CONCLUSIONS: This study is the first to analyze major news media (i.e., BBC, CNN, and Fox News) data related to food services in the context of the COVID-19 pandemic. Text analytics research on the food services domain revealed different categories such as food and health, policy, and lifestyle change. Therefore, this study contributes to the body of knowledge on food services research, through the use of text analytics to elicit findings from media sources.

• 한국인터넷방송통신학회논문지
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• 제23권1호
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• pp.209-214
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• 2023

장래 국내외 자율주행 차량이 보급되면, 자율주행 차량의 사고 역시 발생 빈도가 늘어날 전망이다. 특히, 완전자율주행 자동차가 운행할 경우, 자동차의 사고 자체뿐만 아니라 운행 중 승객 간의 성폭력, 폭행, 사기 등 여러 가지 형사/민사상 문제가 발생할 수 있다. 이 경우, 자율주행차량의 운행 사고와 차량 내 승객의 사고에 대한 포렌식 역시 변화할 전밍이다. 이 글은 자율주행차량의 보안 위협에 대한 유형, 블록체인 기술을 이용한 증거 데이터의 무결성 유지 방안, 디지털 포렌식의 연구를 고찰하였다. 이를 통해 블록체인 기술을 활용한 자율주행 차량에서 발생할 위협과 다양한 사고 유형 별 포렌식 기법 등을 시나리오식으로 기술할 수 있었다. 본 연구를 통해 자율 주행 차량 대상 취약점, 공격에 대응하기 위한 국내외 웹사이트의 포렌식 보안 기술 조사 및 연구기관, 정보보안기업의 블록체인 보안 연구를 조사하여 사고 전/후 자율주행 차량의 포렌식을 돕는 블록체인 기법을 제안하였다.

• 실천공학교육논문지
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• 제14권3호
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• pp.459-469
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• 2022

본 연구의 목적은 의사결정 트리 기반 인공지능 융합교육프로그램을 개발하고 이를 적용함으로써 교육적 효과를 탐색하는 것이다. 본 연구의 목적을 달성하기 위해 준비, 개발, 개선의 3단계 절차를 통해 연구를 수행하였으며 개발된 인공지능 융합 교육 프로그램은 창의적 문제 해결 과정의 '문제의 이해', '아이디어 탐색 및 개발', '실현', '평가'의 4단계로 구성되었다. 특히 이 교육프로그램은 프로그래밍을 포함하지 않는 언플러그드 활동으로서, 프로그래밍을 포함하여 인공지능 기술을 수업시간에 다루는 교과인 초등 실과, 주니어 공학교육의 일환인 기술·가정, 정보 이외의 교과에서도 인공지능 융합교육을 실행할 수 있다는 점에서 주목할 만하다. 즉, 특정 교과가 아닌 대부분의 교과에서 인공지능 기술을 융합하여 교육할 수 있다는 것을 보여주는 것으로서 교과 내용에 다수 포함되고 있는 분류 개념을 교육할 때 인공지능 기술의 개념과 원리를 활용할 수 있는 현장 적용 가능성을 확인했다는데 큰 의의를 가진다.

• 한국치위생학회지
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• 제23권5호
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• pp.351-360
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• 2023

Objectives: This study is based on a visiting oral health care intervention program in the community care. This qualitative study was conducted through in-depth interviews to identify awareness and attitudes regarding intervention program among older adults. Methods: The research team visited the homes of the target older adults and conducted in-depth interviews for approximately an hour using a semi-structured questionnaire. The collected voice recordings were transcribed using Clova Note, and AI program by Naver. Using the 'Word Cloud Generator 3.7' program, words of high importance and interest from interview answers were extracted, visualized, and analyzed. Results: Participating older adults acknowledged that their quality of life related to oral health could be improved by increasing the level of oral health awareness and oral health knowledge through the intervention program. In addition, the older adults indicated that their oral hygiene management ability improved compared to before the intervention through expert oral hygiene management and oral health education. Further, as the level of oral health knowledge increased, so too did satisfaction with the intervention program increase. Conclusions: The intervention program for visiting oral health care showed a positive effect on the awareness and attitude of older adults. Thus, it is suggested that education for continuous competency enhancement of dental hygienists and multidisciplinary education for the improvement of general health and quality of life of older adults should be promoted.