• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2016년도 춘계학술대회
• /
• pp.441-444
• /
• 2016

최근 북한은 핵실험, 미사일 발사 등 물리적 도발은 물론 고위 공직자에 대한 스마트폰 해킹, 금융권에 대한 디도스(DDoS) 공격 등 사이버 테러를 감행하며 한반도 내 위협의 수위를 높이고 있다. 취약점에 대한 해킹, 악성코드 배포 등을 통해 이루어지는 사이버 공격은 일반적으로 최초의 침입과 공격 징후가 감지된 후 데이터 분석을 통해 백신의 라이브러리 추가 및 업데이트, 보안 취약성을 보완하는 등 소극적인 대응 방법을 취하고 있다. 본 논문에서는 프로그램 스스로 취약점을 분석하고 자가 라이브러리 추가, 보안 취약점 해결 등을 수행하는 구글 텐서플로우(TensorFlow) 기반의 기계학습 능력을 갖춘 보안 프로그램에 관한 개념을 연구하고 제안하였다.

• 천문학회보
• /
• 제37권2호
• /
• pp.91-91
• /
• 2012

We present high-resolution near-infrared host galaxy spectra of low-z quasars, PG0844+349 (z=0.064), PG1226+023 (z=0.158), and PG1426+015 (z=0.086). The observation was done by using the near-IR high resolution echelle spectrometer, IRCS, at the SUBARU 8.2 m telescope. The full width at half maximum of the point spread function was about 0.3 arcsec by using an Adaptive Optics system, which can effectively resolve the quasar spectra from the host galaxy spectra. The signal-to-noise ratios are increased by the total exposure time up to several hours per targets and the development of data reduction method. We compare our results to the stellar spectra library and sample spectra from Dasyra et al. (2007) and Watson et al. (2008). The identified spectral lines will be used to study the physical mechanism of quasars, and the velocity dispersions of the stars in the bulge of the host galaxy.

• 한국컴퓨터정보학회논문지
• /
• 제21권1호
• /
• pp.65-72
• /
• 2016

Network virtualization is an emerging technology for solving the rigidity of the physical network infrastructure. The innovative technique virtualizes all resources in the network, including the network links and nodes, and provides a number of virtual networks on a single network infrastructure. In order to realize a virtual network, a thorough and complete monitoring of all resources in the network should be performed firstly. OpenFlow is an open source stack for network virtualization. However, it is impossible to apply OpenFlow to AP-based legacy wireless LAN environment because OpenFlow targets ethernet-based LAN environment. In this paper, we implement an adaptor-styled virtual switch for AP-based wireless LAN through customizing the Open vSwitch which is a virtual switch of OpenFlow. The evaluation test results show that the implemented OpenFlow stack operates successfully. The implemented OpenFlow stack can now be plugged immediately in existing AP-based wireless LAN environment and plays network resource monitoring. In the future, we can develop wireless LAN virtualization applications on the wireless OpenFlow stack.

• 한국기록관리학회지
• /
• 제3권2호
• /
• pp.98-113
• /
• 2003

사진은 다른 기록물과 비교하여 물리적 특성과 정보를 담고 있는 형식의 차이 때문에 특별한 관리를 필요로 한다. 이에 대학 아카이브즈에서 빈번하게 이용되는 사진자료의 효율적인 이용과 관리를 위한 방안으로서, 먼저 대학 관련 사진이미지를 싣고 있는 대학 간행물에서 사진이미지를 추출하고, 서지정보를 파악하여 워크시트를 작성하고, 이를 토대로 사진자료의 서지데이터베이스를 구축하였다. 다음으로 대학 간행물로부터 추출해낸 사진이미지를 편집하고 이를 서지데이터베이스에 링크시킴으로서 사진의 서지정보 검색과 더불어 이미지를 즉시 확인할 수 있는 데이터베이스 구축과정을 사례를 중심으로 소개하고 몇 가지 문제점과 향후 개선방향에 대하여 살펴본다.

• 교육시설 논문지
• /
• 제26권3호
• /
• pp.33-41
• /
• 2019

As the information age matures, the learning style of youth is changing rapidly. Students study at a variety of places such as cafe or lobbies utilizing various digital learning devices. Along with the place changes, learning methods are also changing. Student-centered learning methods such as smart learning, collaborative learning, and activity-based learning are increasingly being utilized instead of the traditional instructor-centered learning in which knowledge is unilaterally delivered. Accordingly, many universities are remodeling central libraries, and they are also transforming lobby spaces of the college buildings into simple but useful learning spaces. In this study, we analyze the characteristics of learning spaces in universities from the standpoint of the students. According to the analysis, overall satisfaction is high in terms of comfortable physical learning environments such as Wi-Fi, furniture, lighting, etc. But the spaces are still optimized for individual and intensive learning. There seems to be a lack of effort to support collaborative learning or activity-based learning. This observation is confirmed by the characteristics of the central library, and it is considered that the reason why the college buildings are preferred by students is that college buildings are more suitable for collaborative or activity-based learning than libraries.

• 패션비즈니스
• /
• 제22권5호
• /
• pp.113-124
• /
• 2018

This study is to find ways to use fast-fashion wedding dresses continuously which usually have worn three or four times and just wasted, which is an current interesting issue over the society. Among clothing from the 19th Century, three styles of Empire, and Crinoline were analyzed from their underwear styles to outwear styles through library and museums and are made for rental service. Based on 8-year-old girls' physical dimensions, openings and closing methods of each size were applied to develop and make rental dress designs. It will be a good opportunity to study history and develop creativity if children can try different styles of dresses from different cultures and times and also experience difference wearing ways as they also have such desire. Underwears were designed to be worn by adjusting cloth rings, rubber bands, or hook and eye to fit different dimensions. The final products are as follows. First, empire dress doesn't need underwear to wear. Depending on the purpose of the rental dress, the back side of upper clothes have lace up by using cloth rings like empire style. Skirt was cut to use hem lace suitably from wasted dress. Second, Crinoline dress is usually configured of Crinoline, Petticoat, Two Piece on Drawers, Chemise, and Corset. It was designed by flat front, bigger sides and backs by Crinoline and Petticoat.

• 교육시설 논문지
• /
• 제26권5호
• /
• pp.3-10
• /
• 2019

This study has a purpose to profile local sectors into meaningful groups by using facilities rates of Social Overhead Capital(SOC) for daily life. Comparing SOC for daily life among the meaningful groups, the profiling and comparison results bring the comprehensive understanding about the educational facilities in local sectors. For the research purpose, this study utilized Latent Profile Analysis(LPA) by using variables such as population, road information, SOC for daily life, usage of land, possession of land, and appraised value of land from the 2018 Geographic Information System(GIS) dataset of Gwangjin-gu, where is one of the administrative district of Seoul City. Results showed that there are four latent groups of sectors among 904 local sectors(100 squared-meters sector per each) in Gwangjin-gu. By comparing the four latent groups by using LPA, the results diagnose each sector's status and help to improve the policy about educational facilities. Specifically, by using dataset for SOC of daily life, there are four groups of local sectors and each group has different features. Based on the different features of local sector groups, there can be improved management of educational facilities matching with each group's features.

• 여성건강간호학회지
• /
• 제27권1호
• /
• pp.27-39
• /
• 2021

Purpose: This study aimed to review recent findings from birth cohort studies on maternal and child environmental health. Methods: Birth cohort studies regarding environmental health outcomes for mothers and their children were investigated through a systematic review. A literature search was conducted in PubMed, CINAHL, the Cochrane Library, Embase, and RISS to identify published studies using the keywords using a combination of the following keywords: maternal exposure, environmental exposure, health, cohort, and birth cohort. Articles were searched and a quality appraisal using the Newcastle-Ottawa Scale for cohort studies was done. Results: A review of the 14 selected studies revealed that prenatal and early life exposure to environmental pollutants had negative impacts on physical, cognitive, and behavioral development among mothers and children up to 12 years later. Environmental pollutants included endocrine disruptors, air pollution (e.g., particulate matter), and heavy metals. Conclusion: This systematic review demonstrated that exposure to environmental pollutants negatively influences maternal and children's environmental health outcomes from pregnancy to the early years of life. Therefore, maternal health care professionals should take steps to reduce mothers' and children's exposure to environmental pollutants.

• 지역사회간호학회지
• /
• 제32권1호
• /
• pp.116-129
• /
• 2021

Purpose: This study aimed to investigate the maternal health effects of internet-based education interventions on parturients during the postpartum period through a systematic review of randomized controlled trials. Methods: An electronic literature search of the Cochrane Library, CINAHL, EMBASE, Eric, PsycINFO, PubMed, RISS, and KISS databases was performed, using the combination of keywords such as 'parenthood education', '*natal education', '*birth intervention', 'internet-based intervention', 'randomized controlled trial'. The inclusion criteria were peer-reviewed papers in English regarding randomized controlled trials of internet-based postnatal education interventions. Educational interventions were delivered through any web, mobile, eHealth, mHealth, virtual reality, short message service, or social networking service platform. Quality appraisal was performed using the Risk of Bias 2 (RoB 2) for randomized controlled trials. Nine articles were yielded, and the intervention effects were analyzed. Results: Internet-based education interventions during the postpartum period affect maternal self-efficacy, postpartum depression, and successive breastfeeding; however, they do not affect maternal satisfaction and parenting confidence. Conclusion: This study demonstrated that internet-based education interventions affect maternal health status in terms of psychological, emotional, and physical wellness. Therefore, maternal health care professionals can utilize remote education using the internet or mobile-based interventions during the postpartum period.

• 인간식물환경학회지
• /
• 제23권2호
• /
• pp.125-138
• /
• 2020

The aim of this study was to review previous literature to determine the effects of nature-based program for workers. This systematic review was conducted in accordance with National Evidence-based Healthcare Collaborating Agency's guidance for undertaking systematic reviews for intervention. Literature search was performed using National Assembly Digital Library, Korean Studies Information Service System, and Korea Education & Research Information Service for literature published until March 2019. The participants were full-time workers, and intervention of nature-based programs was conducted in the outdoor, indoor, and indirect nature contact exposures, with comparators in the control group who did not receive the treatment. The results showed that the programs were effective in physical, psychological, and social health. The methodological quality of randomized controlled trials (RCT) was assessed using the Cochrane Risk of Bias(RoB) tool, while non-randomized controlled trials (N-RCT) were assessed using the Cochrane Risk of bias assessment tool for non-randomized studuies (RoBANS). A total of 16 studies were selected for assessment: two RCTs, 10 N-RCTs, and four one-group pretest-posttest designs. Most interventions were provided at the workplace and in the community. There were many kinds of nature-based interventions, and forest therapy and horticultural therapy programs were most common. Various interventions for workers effectively improved job stress, depression, serum cortisol and stress-response. However, the included studies lacked methodological rigor. Future research is needed to evaluate the long-term effectiveness of nature-based programs for workers using rigorous research designs.