• Journal of the Korea Society of Computer and Information
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• v.22 no.9
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• pp.91-97
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• 2017

IoT (Internet of Things) systems are based on heterogeneous hardware systems of different types of devices interconnected each other, ranging from miniaturized and low-power wireless sensor node to cloud servers. These IoT systems composed of heterogeneous hardware utilize data sets collected from a particular set of sensors or control designated actuators when needed using open APIs created through abstraction of devices' resources associated to service applications. However, previously existing IoT services have been usually developed based on vertical platforms, whose sharing and exchange of data is limited within each industry domain, for example, healthcare. Such problem is called 'data silo', and considered one of crucial issues to be solved for the success of establishing IoT ecosystems. Also, IoT services may need to dynamically organize their services according to the change of status of connected devices due to their mobility and dynamic network connectivity. We propose a way of dynamically composing IoT services under the concept of WoT (Web of Things) where heterogeneous devices across different industries are fully integrated into the Web. Our approach allows developers to create IoT services or mash them up in an efficient way using Web objects registered into multiple standardized horizontal IoT platforms where their resources are discoverable and accessible. A Web-based service composition tool is developed to evaluate the practical feasibility of our approach under real-world service development.

• Journal of Korea Multimedia Society
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• v.16 no.11
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• pp.1297-1304
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• 2013

The quick report and propagate information are increasingly important because nowadays it is hard to predict the damages of flooding by unexpected heavy rain. In addition, there are not many ways to receive disaster information in real time. Accordingly, we designed the system which can earn information from a lot of messages on twitter. Above all, our system can extract and deploy disaster information by comparison with erstwhile social network service mash-up system as only broadcast media. Significant objective of this paper is to design the fastest extract disaster information system of mass media.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06d
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• pp.456-458
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• 2012

최근 스마트폰의 개발과 어플리케이션의 다양화로 인하여 OpenAPI을 사용한 'Mashup'의 기술이 많은 곳에서 이용되고 있다. 매쉬업은 2가지 이상의 서비스를 복합하여 사용하므로 요구 목적에 맞는 새로운 형태의 서비스를 만들어 낸다는 장점도 있지만, OpenAPI 정보 제공자에게 종속될 수밖에 없다는 점과, 서비스를 융합하는 과정이 복잡하다는 문제점이 존재한다. 이러한 문제점들은 매쉬업 프로그램 개발과 유지에 있어서 큰 장벽이 된다. 그래서 매쉬업 개발자에게는 자신의 서비스를 만들어 내기 위하여 손쉽게 OpenaAPI에 접근하는 방법과 매쉬업의 문제점을 보완할 수 있는 서비스가 필요하다. 본 논문에서는 매쉬업 서비스의 효율적 관리와 문제점을 보완할 수 있는 통합적 매쉬업 관리 모델에 대해서 다룬다. 통합적 매쉬업 관리 모델은 '선택적 매쉬업'과 '자가 복구 시스템'으로 구성된다. 선택적 매쉬업은 사용자가 원하는 매쉬업 데이터를 얻기 위해서 여러 번 작업을 해야 한다는 번거로움을 간편화하여 효율적 작업처리가 가능하게 하였다. 또한, 자가 복구 시스템은 매쉬업의 단점인 종속적 정보 획득을 보완하고 방지하기 위해서 OpenAPI 수집 에이전트를 통하여 중복된 OpenAPI를 수집, 요구된 매쉬업 정보를 자동 업데이트를 수행하는 기능을 제공한다. 통합적 매쉬업 관리 모델은 매쉬업 사용자에게 편리한 접근 인터페이스 제공하고 종속성이라는 문제점을 해결해 줄 수 있을 것이라고 본다.

• Asian-Australasian Journal of Animal Sciences
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• v.13 no.11
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• pp.1609-1618
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• 2000

Thin stillage and distillers' grains are byproducts remaining after alcohol distillation from a fermented cereal grain mash. Both byproducts are used as energy and protein sources for ruminants. Due to its liquid nature, more than 50% of thin stillage bypasses the rumen. Thin stillage can be fed alone or in combination with distillers' grains. However, a better utilization by beef cattle is anticipated when thin stillage replaces water as a fluid source. Ruminal undegraded protein content of distillers' grains is greatly affected by type of cereal grain and by drying. Corn distillers' grains have a higher ruminal undegraded protein content than wheat distillers' grains while dried distillers' grains have a higher ruminal undegraded protein content than the wet distillers' grains. Wet and dried distillers' grains can replace up to 50% of corn grain in beef cattle diets without affecting animal performance. The estimated NEg of corn distillers' grains for beef cattle ranges from 100 to 169% of that of corn. In general, wet corn distillers' grains have a higher NEg value than dried corn distillers' grains and the addition of thin stillage improves the NEg of distillers' grains. Improved performance of ruminats fed distillers' byproducts can be attributed to high digestible fiber content, improved rumen environment and a shift in organic matter digestion from the rumen to the small intestine.

• International Journal of Internet, Broadcasting and Communication
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• v.7 no.2
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• pp.56-64
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• 2015

The personal image information compiled through closed-circuit television (CCTV) will be open to the internet with the technology such as Long-Tail, Mash-Up, Collective Intelligence, Tagging, Open Application Programming Interface (Open-API), Syndication, Podcasting and Asynchronous JavaScript and XML (AJAX). The movie User Created Contents (UCC) connected to the internet with the skill of web 2.0 has the effects of abuse and threat without precedent. The purpose of this research is to develop the institutional and technological method to reduce these effects. As a result of this research, in terms of technology this paper suggests Privacy Zone Masking, IP Filtering, Intrusion-detection System (IDS), Secure Sockets Layer (SSL), public key infrastructure (PKI), Hash and PDF Socket. While in terms of management this paper suggests Privacy Commons and Privacy Zone. Based on CCTV-UCC linked to the above network, the research regarding personal image information security is expected to aid in realizing insight and practical personal image information as a specific device in the following research.

• The Korean Journal of Food And Nutrition
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• v.22 no.1
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• pp.86-91
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• 2009

To develop a new traditional Gugija tagju, various koji were prepared using several starch sources along with Aspergillus awamori var. kawachi, and then their effects on the quality of the tagju were investigated. Ethanol contents(11.1${\sim}$13.8%) were not significantly different among the Gugija tagju made from the various types of koji, whereas the tagju made using non-glutinous rice koji had the best total acceptability. The addition of 1% Gugija extracts into the mash increased its total acceptability and anti-hypertensive angiotensin I-converting inhibitory activity, and the optimal fermentation period for brewing the Gugija tagju was 10 days.

• Spatial Information Research
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• v.18 no.1
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• pp.89-99
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• 2010

This study has been implemented a map-based festival information website with Google Map to overcome a limit that existing festival information web sites supplied location information only through text-based format. To get the newest festival information, this website uses GeoRSS function which transform rss feed offered by newspaper websites into location based information. Through this function, internet users can see festival information at a glance on the basis of a map. Through this study we confirmed the efficiency of offering location based festival information and possibility of GeoRSS function to provide the newest festival information.

• Journal of Korea Multimedia Society
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• v.15 no.7
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• pp.837-846
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• 2012

This paper presents a watermarking scheme based on the perspective distance for the secure mash-up service. The proposed scheme embeds the watermark of the location information of satellite image and the user information using edge color histogram, which is dissimilar to general digital image. Therefore, this scheme can trace the illegal distributor and can protect private information of user through the watermarking scheme that is adaptive to satellite image. Experimental results verified that our scheme has the invisibility and also the robustness against geometric attacks of rotation and translation.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.937-940
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• 2017

본 연구는 유저 크리에이티브 지식 매체를 생성함에 있어 기존 일방적 전달 방식에서 탈피하여 자신이 가지고 있는 정보를 다수의 사람과 공유 할 수 있는 3세대 다방향(Mash-Up) 교육에 관한 연구하여 SNS와 클라우드 요소를 통해 공유할 수 있는 플랫폼을 개발하는 방안을 제안하고 있다. 본 연구는 1)LIVE_BOARD 2)TIMELINE 3)NEWS FEED 4)PLANNER로 나뉜다. Live_Board의 실시간 스트리밍을 활용하여 영상 이미지기반 의사소통을 지원하고, SNS적 요소인 TimeLine, News Feed를 통해 다른 사용자들과 정보 공유를 할 수 있고, Planner를 통해 개인 스케줄 관리를 할 수 있는 플랫폼이다.

• Korean Journal of Computational Design and Engineering
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• v.15 no.6
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• pp.460-466
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• 2010

These days, it is getting important to have more chances to visit natural environment for the wellbeing life. The advancement of digital technologies allows us to get useful information regardless of time and location. In this paper, we investigate a way of improving user experience in the natural green environment using the digital technologies. This paper proposes a system called Green-UX-Story which supports users to create and share their story through the online and offline green experience. The system consists of two main systems: the "Story-Field" and the "Story-Tree". The Story-Field consists of a certain number of the Story-Trees allocated to a certain green site. In the Story-Field, users can see the Story-Trees that are owned by other users and share their stories. The Story-Tree contains the user-story in each branch and green information that are captured by the user on the web. The Story-Tree is generated using the L-system algorithm as the user adds stories. The main purpose of the system is to enable users to write their green stories from the both online and offline experiences. This paper describes the system configuration and the user scenario of the Green-UX-story.