• Journal of Internet Computing and Services
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• v.21 no.3
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• pp.11-19
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• 2020

In this paper, a merged TEA block cipher processor which unifies Tiny Encryption Algorithm(TEA), extended Tiny Encryption Algorithm(XTEA) and corrected block TEA(XXTEA) is designed. After TEA cipher algorithm was first designed, XTEA and XXTEA cipher algorithms were designed to correct security weakness. Three types of cipher algorithm uses a 128-bit master key. The designed cipher processor can encrypt or decrypt 64-bit message block for TEA/XTEA and variable-length message blocks up to 256-bit for XXTEA. The maximum throughput for 64-bit message blocks is 137Mbps and that of 256-bit message blocks is 369Mbps. The merged TEA block cipher designed in this paper has a 16% gain on the area side compared to a lightweight LEA cipher. The cryptographic IP of this paper is applicable in security module of the mobile areas such as smart card, internet banking, and e-commerce.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1997.10a
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• pp.68-70
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• 1997

본 연구의 목적은 정보산업의 발달로 급변하고 있는 교육환경하에서 인트라넷(intranet)을 활용한 경영모의게임(Business Simulation Game)의 활용방안을 제시하고, 이러한 수업이 갖는 장점 및 수업효과에 미치는 영향을 조사하였다. 즉, 학생들이 팀을 이루어 게임을 하는데 있어 남녀별, 직장경험별, MBTI의 특성 별, 팀 구성원의 수의 차이에 따른 게임 성과 및 수업효과와의 상호관계를 실증적으로 비교, 연구하여, 궁극적으로는 한국교육실정에 맞는 인트라넷을 이용한 경영 모의 게임의 개발을 그 목적으로 하고 있다. 근래에 정보 및 통신기술의 발전과 인터넷 사용의 보편화로 여러 가지 학문 분야에서 정보화 및 국제화가 많이 이루어져왔다. 특히 인터넷과 관련된 여러 가지 기술(technology)들을 적극적으로 통합, 활용하고자 하는 인트라넷(intranet)의 발전은 정보기술의 여러 학문 분야에서의 활용가능성을 더욱 높이고 있는 실정이다. 그러나 이러한 인터넷, 정보 및 통신기술의 교육현장에서의 활용 방안에 대한 많은 연구들은 실질적으로 그 이론적 배경 및 효과에 대한 깊은 연구없이 종래의 교육방법에 대한 대안 또는 보조 역할로서의 가능성만 제시하고 있는 형편이다. 따라서 본 연구는 첫째, 경영모의게임과 정보통신기술의 활용을 위한 학술진흥방안의 하나로서 인트라넷을 이용한 경영모의게임 과목의 구축및 수행에 관한 구체적인 절차를 제시한다. 즉 경영모의게임 구성은 어떤 모듈들이 어떻게 인터넷상에서 사용되었으며, 도한 게임의 운영은 어떻게 하는것이 바람직한가 등에 관한 연구이다. 둘째, 성별, 직장경험별, MBTI 특성별, 팀의 크기별로 게임성과 및 수업효과에 관한 실증적 연구를 함으로써, 게임 이론의 경영마인드 형성 및 정보화에서 예견 될수 있는 여러 가지 문제점 및 가능성을 지적하여, 한국문화 및 현실에 맞는 정보화를 이용한 경영모의게임 교육방안을 제시한다. 셋째, 본 연구는 의사결정지원 시스템(DSS), 전문가 시스템(ES), 전자우편(E-mail)등과 같은 정보기술의 교육현장에서의 활용방안 및 그 교육적 효과도 점검하였으며, 마지막으로 본 연구는 당면현실로 다가온 정보화 및 세계화의 기업환경에서 예견되는 몰입(committment)의 약화에 대한 치유방안으로서, 정보화된 경영모의게임의 기업 교육훈련 시스템(Business Training System)으로의 발전 가능성을 제시한다 하겠다.

• Journal of Korea Multimedia Society
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• v.12 no.11
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• pp.1680-1691
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• 2009

To improve the quality of healthcare and build up the health delivery system, electronic health record system is important for healthcare institutions providing health services. However, the systems currently operated in domestic healthcare institutions use independent software interface with distributed environment for data search and process. Therefore, it raises an additional expense to buy or develop each interface module when there is a link to new system and the problem of complexity. To solve these problems, this study implemented the service oriented architecture basis for home nursing service and carried out an assessment. The study defined the process modeling and business requirements based on the scenario of service and drew 17 suitable services based on five verification items for service design. To draw the final service, seven services were selected by service litmus test (SLT). The study found that, by the improvement of business process for healthcare service support department, SOA based information system has an effect of time reduction of patient processing time. In conclusion, to enable the hospital information system to cope with various demands of healthcare consumers, it is necessary to consider the application of SOA technology which has excellent interoperability, reusability and maintenance.

• The KIPS Transactions:PartB
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• v.10B no.4
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• pp.389-396
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• 2003

In this paper, we present a Korean partial parser based on rules, which is used for running applications such as a grammar checker and a machine translation. Basically partial parsers construct one or more morphemes and/or words into one syntactical unit, but not complete syntactic trees, and accomplish some additional operations for syntactical parsing. The system described in this paper adopts a set of about 140 manually-written rules for partial parsing. Each rule consists of conditional statements and action statement that defines which one is head node and also describes an additional action to do if necessary. To observe that this approach can improve the efficiency of overall processing, we make simple experiments. The experimental results have shown that the average number of edges generated in processing without the partial parser is about 2 times more than that with the partial parser.

• The Journal of the Korea Contents Association
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• v.20 no.7
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• pp.185-194
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• 2020

This study aims to figure out how the brand experience design elements works in the Shortform video-based branding through case analysis. The sense, feel, think, act, relate experience of Shortform video brand are provided through the implementation of specific experience design elements in the process of the creators expressing personality through social media channels and communicating and interacting with consumers. As a result, LIZIQI's food videos provided a brand identity as an 'Eastern gourmet' to consumers through the audiovisual stimulation of food in video, the cognitive reinforcement which is combined of identities and products, and the behavioral participation by web sites·electronic media. In addition, a strong brand relationship was established by sharing emotional ties using human factors and responsibility through co-branding. This can be extended to various Shortform video contents-based branding cases, and it will suggest a useful approach to the brand building strategy through strategic brand experience design elements.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.21 no.1
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• pp.75-81
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• 2007

This paper dealt with the design and implementation of an expert system to monitor and diagnose the lightning arresters in GIS substations. The expert system consists of a data acquisition module(DAM) based on microprocessor and diagnostic algorithms. The DAM measures and analyzes several parameters necessary for the arrester diagnosis such as system voltages, leakage current components, and temperatures. Also, it includes an intelligent surge counter which can record the date and tin, the polarity, and the amplitude of surge currents. All the data acquired is transmitted to a remote computer by a low rate wireless network specified in IEEE 802.15.4 to avoid electromagnetic intereference under high voltage and large current environments. The decision-making for the arrester diagnosis completes with a Java Expert System Shell(JESS) which is composed of a knowledge base, an inference engine and a graphic user interface(GUI).

• Journal of Advanced Navigation Technology
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• v.24 no.2
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• pp.61-66
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• 2020

Since the ocean accounts for 70.8 percent of the earth's surface, the success of IoT technology in the marine industry is to collect information from devices placed in a wider range. LPWA is a feature with a wide range of communication and is very suitable for deployment in the ocean. In this paper, the real-sea performance distance experiment was carried out based on Private LoRa, a key technology for executing the electronic phrase real-name system. A private LoRa module based on sx1276 was developed, and Gateway was developed to transfer data received by private LoRa to the server using SKT Cat. M1. After installing gateways at 599 meters above sea level and experimenting with data transmission and reception at 25 km, 40 km and 60 km, we were able to see that the communication success rate was obtained to be 96.1%. 97.1% and 96.2% respectively.

• Journal of Satellite, Information and Communications
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• v.10 no.1
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• pp.83-87
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• 2015

LED navigation light installed on the ship performs a important role to ensure safety and prevent collisions with other ships. LED navigation light is mainly used in the night and within the limited visibility by smoke, rainfall. In particular, LED navigation light installed with a clear understanding. LED navigation light is consist of LED module, a control board, a converter, a Fresnel lens, such as enclosure. Russian Society of LED navigation light (RMRS) of the ship to be delivered by drying at Daewoo Shipbuilding & Marine Engineering requires guaranteed reliable products at below $-52^{\circ}C$. conventional LED navigation light has to ensure quality at $-25{\sim}40^{\circ}C$. So, LED navigation light should ensure a problems of random failure or long time operation. In this paper, we present the current status and future plans of reliability so far.

• KIISE Transactions on Computing Practices
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• v.20 no.9
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• pp.519-524
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• 2014

The operating systems in the system architecture, which is integrated several applications and modular electronic devices in the same computing device, demand partitioning technology for safety. Thus, operation system requires partition scheduler for partition scheduling. When we design partition scheduler in embedded system, which has small memory and low performance, such as space system, we must consider not only performance but also memory. In this paper, we introduces a linux-based memory efficient partition scheduler using partition bitmap. This partition scheduler demands small memory space and produce low partition switching overhead. The prototype was executed on a LEON4 processor, which is the Next Generation Multicore Processor (NGMP) in the space sector. In evaluation, this prototype shows accuracy, additional memory space and low partition switching overhead.

• Annual Conference on Human and Language Technology
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• 2018.10a
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• pp.400-405
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• 2018

본 연구는 한국어 화장품 리뷰 코퍼스의 자질기반 감성 분석을 위하여, 이 도메인에서 실현되는 중요한 다단어 표현(MWE)의 유한상태 그래프 사전과 문법을 구축하는 방법론을 제시하고, 실제 구축된 사전과 문법의 성능을 평가하는 것을 목표로 한다. 본 연구에서는 자연어처리(NLP)에서 중요한 화두로 논의되어 온 MWE의 어휘-통사적 특징을 부분문법 그래프(LGG)로 형식화하였다. 화장품 리뷰 코퍼스에 DECO 한국어 전자사전을 적용하여 어휘 빈도 통계를 획득하고 이에 대한 언어학적 분석을 통해 극성 MWE(Polarity-MWE)와 화제 MWE(Topic MWE)의 전체 네 가지 하위 범주를 분류하였다. 또한 각 모듈간의 상호관계에 대한 어휘-통사적 속성을 반복적으로 적용하는 이중 증식(double-propagation)을 통해 자원을 확장하였다. 이 과정을 통해 구축된 대용량 MWE 유한그래프 사전 DECO-MWE의 성능을 테스트한 결과 각각 0.844(Pol-MWE), 0.742(Top-MWE)의 조화평균을 보였다. 이를 통해 본 연구에서 제안하는 MWE 언어자원 구축 방법론이 다양한 도메인에서 활용될 수 있고 향후 자질기반 감성 분석에 중요한 자원이 될 것임을 확인하였다.