• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.18 no.6
• /
• pp.33-41
• /
• 2018

The idea of the Internet of Things as a platform on the Smart Campus has become increasingly popular. It requires an infrastructure consisting of communication networks, sensor nodes and gateways to connect to the Internet. Each sensor node is responsible for gathering data from the environment. This document outlines a network of wireless sensors on the Internet for the application of Smart Campus monitoring. Wireless sensor network Monitoring have become a complete solution to using a low power implementation and integrated systems. The numerous restrictions however result from the low communication range, the limited computing power, the lack of availability of the network protocol, the lack of programming security and the security failures in the areas of confidentiality, integrity and availability. A new security technique and its functionality for WSNM nodes developed. Development in the research of a secure network and suggestions for avoiding denial of service (DOS) and complexity attacks. These systems if properly implemented can provide an energy efficiency mechanism through pre-allocation and a new key from key management models with a secure routine algorithm.

• Journal of the Korean earth science society
• /
• v.32 no.7
• /
• pp.881-901
• /
• 2011

The science museum in the past satisfied visitors only by interacting them with simple objects and exhibition, while one in modern times was requested to meet the need of visitors in their engagement in educational programs. To meet the visitors' need, the science museum made efforts to train, educate, and assign docents so that they can interact with visitors and serve the educational purpose of visitation. In this study, we analyzed the strengths and weakness of docent training programs from science museums/science centers nationally and internationally, to make implication on how to design a docent training and professional program. Programs from four national and four international science centers/museums were selected as a sample for analysis. Their docent training programs were compared with the data of surveys and interviews and emails from docents and docent managers/evaluators. Artifacts and documents of the docent training programs were also collected and used to construct the validity in analyzing the data, resulting in the well-developed docent training program as the critical one for enriching science museum education. The results included; First, we need to recruit and train docents who interact visitors directly but they need to be differentiated from regular volunteers for promoting science museum education for the purpose of popularization of science. Additionally, Second, we need to develop and run docent training program where docents can experience 'informal learning' exhibition interpreting strategies through the real field from mentoring from the experienced/senior docents beyond 'formal learning' exhibition content. Third, we need to equip docents with skills to make scientific literacy possible at science museum-such as experiencing scientific ethics through scientific inquiry-which happens limited at school education.

• Journal of the Korean earth science society
• /
• v.33 no.2
• /
• pp.200-215
• /
• 2012

The revitalization of science museum depends on the number of qualified docents who can meet the museum visitors' educational needs. However, the current unstructured docent system is not sufficient to meet the goal. Forty six docents currently working in science museums were surveyed about docent training program, current working conditions, and docent professional program in order to propose a viable system providing a docent profession. Data were collected through surveys with 46 docents, interviews with two experienced docents, and several artifacts from the science museum and selected docents. The surveys consisted of 47 items asking about personal biography, docent's perception, docents training program they took, current working conditions, and supplementary professional program. The conclusion of this study is as follows; First, there must be recognition about docents who can play educator's roles which are different from those of general volunteers in terms of recruiting and training system in science museum. Second, docents need to take training and supplementary professional courses that focus on observing and educating visitors in the field. Third, we need a docent management system by employing a well structured evaluating tools. A well established docent system will bring forth the enhancement of science museum education and the increase of science popularization by providing visitors with the quality educational services.

• The Bulletin of The Korean Astronomical Society
• /
• v.42 no.2
• /
• pp.71.2-71.2
• /
• 2017

국립과천과학관은 상설전시관 외에 천체관측소, 천체투영관, 스페이스월드 등의 천문우주시설을 갖추고 있으며 이들 시설을 활용한 천문대중화 프로그램을 지속적으로 운영하고 있다. 그러나 학령인구 감소와 관람객의 요구수준 증대 및 계층의 다변화에 따라 더 이상 과학관 간의 경쟁이 아닌 문화센터, 놀이공원, 박물관 등 여러 유형의 놀이, 문화 시설과 경쟁해야 하는 현실에 직면하고 있다. 이로 인해 과학관을 방문하는 관람객수는 정체하거나 점차 줄어드는 추세를 보이고 있다. 따라서 일정한 수준의 관람객을 지속적으로 확보하기 위해서는 새로운 수요를 창출하는 것 못지않게 과학관 관람객층을 다변화하고 이들의 재방문율을 높이는 것이 중요하다. 2016년 1월부터 2017년 7월까지 국립과천과학관 천문우주시설의 비 상설 프로그램인 "공개관측회"와 "저자특강"에 참석한 관람객을 대상으로 재방문율 조사를 하였고 이를 이용해 관람객의 프로그램 참석 빈도, 특성, 고객충성도 등을 분석하였다. 충분한 표본 확보와 자료의 객관적인 분석을 위해 소수의 적극적인 관람객만 참여하는 설문조사 방식을 사용하지 않고 온라인에 등록된 모든 참석자의 목록을 추출하여 사용하였다. 조사기간 프로그램에 참여한 총 인원은 6,700명이었으며 2회 이상 방문을 한 관람객의 재방문율은 38.8%를 나타냈다. 총 4,755명이 참석했던 "공개관측회" 만을 대상으로 한 재방문율은 29.8%, 총 1,925명이 참석했던 "저자특강"만을 대상으로 한 재방문율 41.7%의 결과를 얻었다. 또한 두 프로그램을 모두 참석한 관람객은 전체 19.6%의 결과를 보였고 재방문자만을 대상으로 한 교차 프로그램 참석자의 비율은 50.4%를 나타냈다.

• Korean journal of communication and information
• /
• v.25
• /
• pp.135-162
• /
• 2004

This paper deals with how Korean press constructs the study on human gene in the process to collect information add distribute them to readers by their ideological characteristics. By using frame analysis method, this paper analysis the reality construction of human gene's studies in critical insights and explores some alternatives for solving the social conflict around human gene's study. Based on the study results, this paper suggests that Korean press needs more positive role in establishing a public sphere in order to make a social consensus about ethical issues of human gene's studies.

• The Journal of the Korea Contents Association
• /
• v.12 no.5
• /
• pp.103-112
• /
• 2012

This paper is based on the perspective that the YTN Science, a science channel in Korea which plays a key role in the popularization of science, is suffering from low viewing ratings, insufficient content, and shortage of production. First, this study employs an exploratory method to identify current status of programming and operation of the Korean science channel along with its promotional strategy. Second, it aims to conduct an analysis on the science channels, specifically some major programs, of other nations including the U.S. (Discovery Channel, National Geographic Channel), United Kingdom (BBC Knowledge), Japan (Science Channel), and China (CCTV 10), seeking the possibility to apply and combine them afterward to the Korean TV channels specialized in science. A number of implications are derived from our diagnosis of present situation and analysis of abroad cases, and this helps us suggest the content development and promotional strategies as follows: First, due to the rising need for change in the programming strategy to enhance the value of the content, it is required to rearrange the programming in terms of the target audience and the viewer lifestyle, adopt a new strategy for building up the viewers' watching habit through 'stripping', and place strategic programs in prime-time. Second, as for the specific schemes of content production and application, it is recommended to establish a dual strategy in creating the content (one for conveying knowledge, the other for delivering fun), plan and use a representative character of the program, select scientific and technological topics with more Korean backgrounds, attempt strategic ties with SNS, deepen and diversify the material for programs, and implement a strategy to boost the OSMU. Finally, with regard to the promotional strategy, a constructive proposal may include raising channel awareness through science-related events and live broadcasting, performing promotional strategies by way of expanding to printed media like magazine and book publications, and intensifying online and mobile promotional strategy.

• Proceedings of the Korean Information Science Society Conference
• /
• 2012.06a
• /
• pp.245-247
• /
• 2012

최근 멀티코어 프로세서의 활용이 대중화되고 있다. 멀티코어 시스템에서는 소프트웨어가 동시에 여러 코어를 사용하여 동작을 수행 할 때 성능 향상 효과를 얻을 수 있다. 즉, 하나의 소프트웨어가 여러 코어를 동시에 사용할 수 있는 멀티스레드 프로그래밍 기법을 사용할 때 성능을 높일 수 있다. 이러한 환경에서 효율적인 메모리 할당은 데스크톱, 서버 및 과학 등과 같은 응용에 매우 중요하다. 하지만, 동적으로 메모리를 할당하는 것은 메모리 할당 연산과 반환 연산 및 어떤 스레드가 다른 스레드의 힙 영역에 접근하는 것을 처리하기 위한 동기화 문제로 인한 오버헤드가 발생하여 성능에 영향을 끼치는 문제가 발생하게 된다. 따라서 이와 같은 환경에서 실제로 성능에 어느 정도 영향을 끼칠 것인가를 측정할 수 있는 도구가 필요하다. 이에 멀티코어 환경에서 멀티스레드 기법을 사용하여 메모리 할당 연산이 성능에 어떠한 영향을 끼치는지를 측정 및 평가할 수 있는 시뮬레이터인 MAES(Memory Allocation Evaluation Simulator)를 설계하고 구현한다.

• 한국정보교육학회:학술대회논문집
• /
• 2007.08a
• /
• pp.45-50
• /
• 2007

최근 과학기술의 발달에 따른 컴퓨터 산업의 대중화로 각 가정마다 컴퓨터 1대씩은 필수로 보유하고 있다. 이러한 추세에 따라 초등학교 교육과정에도 재량활동으로 ICT 교육을 체계 있게 실시할 수 있도록 하고 있다. 하지만 컴퓨터를 가지고 정보를 활용하는 순기능을 잃어버리고 역기능이 학습지도와 생활지도의 문제로 등장했으며 컴퓨터 게임으로 인해 수많은 부정적인 영향을 끼치는 것으로 나타났다. 본 연구에서는 전국 여러 곳에서 초등학교의 고학년 학생들의 자료를 수집한 다음 이것을 특별시 광역시지역, 중 소도시지역, 읍 면지역으로 구분한 후 학생들의 컴퓨터 게임 사용 실태를 알아보고, 컴퓨터 게임 중독 측정도구를 사용하여 컴퓨터 게임 중독의 유무를 파악하며, 컴퓨터 게임 중독에 영향을 미치는 여러 요인들을 찾아보았다. 중독이 되는 요인으로는 남학생일수록, 학교 성적이 낮을수록, 게임 사용 경력이 오랠수록, 게임 사용 빈도가 높을수록, 게임 사용 시간이 많을수록, 공격성과 충동성이 높을수록, 자기통제가 안 될수록, 부모로부터 존중을 받지 못할수록, 공부스트레스가 많을수록, 대인불안이 높을수록, 친구 따라서 게임할수록 중독이 잘되는 것으로 나타났다. 소속감과 재미와 성취감이 관련이 높은 것으로 나타났다. 중독의 실태 및 요인을 알아 본 바에 따르면, 컴퓨터 중독을 비방하는 가장 큰 방법은 가정에서 부모가 자녀를 존중해주고, 바른 인성을 길러 공격성과 충동성이 높지 않고, 게임을 많이 좋아하지 않는 친구를 사귀는 것이 중요하다고 하겠다. 그리하여 가정과 학교와 사회가 올바로 역할을 수행한다면 정보화의 역기능인 컴퓨터 중독을 예방하고 정보 활용의 본래의 기능을 되살릴 수 있으리라 본다.

• KIISE Transactions on Computing Practices
• /
• v.22 no.11
• /
• pp.567-575
• /
• 2016

With the popularity of smartphone, user's location information is of great interest as mobile apps based on the location information are increasing. In this paper, we are interested in analyzing user's speed data based on the location information. It is not uncommon to observe locations with great measurement errors, removing them is necessary. The distribution of speed can be considered as a mixture model in accordance with transportation means. We identify a tail part as a component of a mixture model and fit a simple parametric model to the tail part of the speed distribution.

• Korean journal of food and cookery science
• /
• v.22 no.3 s.93
• /
• pp.346-354
• /
• 2006

The purpose of this study was to gather useful information for establishing an efficient marketing direction by investigating the performance (satisfaction) and importance for the quality, popularization and merchandising of local foods in the Ulsan area. A questionnaire was answered by 500 citizens over 16 years old living in the Ulsan area. The study data were analyzed by Importance-Performance Analysis method(IPA), frequency analysis, T-test, and ANOVA. The analysis of the quality attributes of local foods for tourist merchandising showed that importance was generally higher than performance. 'Sanitation', 'taste', 'freshness', 'healthfulness', 'nutrition' and 'service' were revealed to be significant ones in the quality attributes. The respondents thought that a lot of emphasis needs to be placed on 'generalizing and globalizing local cuisine', 'passing down traditional recipes','hosting various cultural events related with traditional foods', and 'increasing the number of restaurants specializing in local traditional foods'.