• Journal of the Society of Disaster Information
• /
• v.18 no.1
• /
• pp.63-72
• /
• 2022

Purpose: After the Crona Pandemic, all countries are interested in developing various programs to attract tourists. In order to activate the attraction of tourists, it is necessary to discover the information needed by tourists and provide the information based on the visitor's location. Method: This research proposes a system configuration method for creating tourist-oriented tourism contents information. To this end, it creates GIS and QR code-based content and provides necessary information from the tourist's current location. In addition, by using QR codes installed at various points, it provides travel time and other destination information from the current location, and AR image information based on QR codes. Result: The existing tourism content system provides information using a fixed location-based QR code. This research creates and provides customized tourism information based on the location of tourists by generating GIS-based QR codes. Conclusion: This research aims to contribute to the construction of a new tourism information contents and the activation of tourist-oriented tourism information provision.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2015.01a
• /
• pp.325-328
• /
• 2015

NFC란 Near Field Communication의 약자로, 양방향 통신을 지원하는 근거리 통신 방법으로, 저전력, 사용의 편이성 등이 새롭게 각광받고 있는 차세대 통신수단이다. 본 논문에서는 기존의 바코드와 유사한 QR코드와 NFC를 모두 이용하는 모바일 환경에서의 소셜 커머스 결제 시스템을 제안한다. NFC를 사용하여 결제하는 제안된 방식이 기존의 결제 방식에 비하여 간편하고 편의성이 증대됨을 보인다.

• Natural Product Sciences
• /
• v.7 no.2
• /
• pp.38-44
• /
• 2001

NAD(P)H:quinone reductase (QR), known as DT-diaphorase, is a kind of detoxifying phase II metabolic enzyme catalyzing hydroquinone formation by two electron reduction pathway from quinone type compounds, and thus facilitating excretion of quinoids from human body. With the usefulness of QR induction activity assay system for the modulation of toxicants, in the course of searching for cancer chemopreventive agents from natural products, the methanolic extracts of approximately two hundreds of oriental medicines were primarily evaluated using the induction potential of quinone reductase (QR) activity in cultured murine Hepa1c1c7 cells. As a result, several extracts including Hordeum vulgare, Momordica cochinchinensis, Strychnos ignatii, Houttuynia cordata, and Polygala japonica were found to significantly induce QR activity. In addition, the methylene chloride fraction of H. vulgare, one major dietary food source, showed potent induction of QR activity $(CD=6.4{\mu}g/ml)$. Further study for isolation of active principles from these lead extracts is warranted for the discovery of novel cancer chemopreventive agents.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2016.10a
• /
• pp.577-578
• /
• 2016

QR 코드를 이용한 접촉 매체를 이용해 본 경험자 중 대부분은 스마트폰을 사용한 것으로 나타났으며, 해당 접촉 매체 중 가장 높은 이용 비율을 나타낸 매체는 홍보용 전단지나 브로슈어 등 이다. 이와 같이 스마트폰의 보급에 따른 QR 코드의 이용 범위가 마케팅 분야에 집중되면서 효율적인 이용 방법에 대한 연구가 증가하고 있는 추세이다. 본 연구에서는 QR 코드에 저장된 음식에 대한 상세 정보를 활용한 모바일 웹 기반의 음식 추천을 위한 개인화 서비스 시스템을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2013.11a
• /
• pp.609-610
• /
• 2013

본 논문에서는 잡지에서 브랜드광고에 QR코드를 제공하여 실시간으로 장소에 대한 위치정보, 상세정보, 판매처 등을 제공하여 소비자가 편리하게 정보를 제공받을 수 있는 QR코드를 활용한 잡지 상품 검색 시스템을 제안하고, QR입력기능, 전국매장 위치제공 기능, 가까운 매장 위치 제공, 검색기록 불러오기 기능을 포함하는 상품 검색 시스템을 설계하였다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2021.07a
• /
• pp.91-92
• /
• 2021

소비자들의 욕구 충족을 위하여 생산 제품이 다양해지고 있는 상황으로 소비자 맞춤형 생산이 이루어지고 있으나, 제조 현장에서는 운영자 및 작업자가 신속하게 제조 작업을 할 수 있는 시스템이 필요하다. 그러나 일반적으로 HMI와 같은 별도의 GUI 장치를 통하여 생산 내용의 변경이 가능하나, 작업자들은 이를 조작하여 PLC를 통한 생산에 적용하는데 많은 어려움을 겪고 있다. 본 논문에서는 단말기가 필요하지 않는 QR 코드를 기반으로 모바일 기기를 통하여 키오스크 기능을 제안한다. 제안 시스템은 모바일 디바이스를 통하여 검증된 생산 사양만을 선택할 수 있는 키오스크 화면을 구현한 것으로, PLC와 연동하여 즉각적으로 소비자가 필요로 하는 맞춤형 주문 생산이 가능할 것으로 기대된다.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.11 no.1
• /
• pp.113-118
• /
• 2016

This study found that there are problems in sending mails at the postal service reception desks and proposes a system which transmits address information to POSNET(the terminals at post office reception) without the use of an additional security system based on address information which is stored in the terminals of mobile phones. The system proposed transforms the information of users into two-dimensional barcode(QR code) of the POSNET and a number of address information is texturized and transmitted to the POSNET with the use of how to read QR code and LAN such as bluetooth. When the system proposed is connected to the postal reception system, it can create and output mail addresses for mobile computers automatically and contribute to better performance for the post office reception clerks and better economic results.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.38B no.5
• /
• pp.377-384
• /
• 2013

In order to improve the security strength in the password based user authentication, in which the security vulnerability is increased while the same password is repeatedly used, the OTP(One-Time Password) system has been introduced. In the OTP systems, however, the user account information and OTP value may be hacked if the user PC is infected by the malicious codes, because the user types the OTP value, which is generated by the mobile device synchronized with the server, directly onto the user PC. In this paper, we propose a new method, called DTOTP(Dual Transmission OTP), to solve this security problem. The DTOTP system is an improved two-factor authentication method by using the dual transmission, in which the user performs the server authentication by typing the user account and password information onto the PC, and then for the OTP authentication the mobile device scans the QR code displayed on the PC and the OTP value is sent to the server directly. The proposed system provides more improved security strength than that of the existing OTP system, and also can adopt the existing OTP algorithm without any modification. As a result, the proposed system can be safely applied to various security services such like banking, portal, and game services.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.22 no.4
• /
• pp.165-170
• /
• 2022

By reducing time spent outside, a shopping system was developed for middle-aged and elderly people who mainly use neighborhood marts and neighborhood mart managers. The main functions of this app are direct shopping and online shopping, and it was developed using QR code using Zxing library on Android and Kakao Map using Kakao API. In addition, it provides information such as payment statistics and bulletin board posts that members need through recycler view and graphs in an easy-to-read manner. Through this system, members can efficiently manage by reducing fatigue when using the mart through direct purchase using QR code and delivery through map, and reducing manpower wastage as a mart manager. Also, as a mart manager, more consumers will be able to sell more items.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.13 no.6
• /
• pp.161-166
• /
• 2013

With recent development in information technology, IT convergence has been achieved ubiquitously in all areas of industry. In particular, there have been a lot of changes in medical IT conversion sector in terms of user service. In this regard, this paper attempts to propose an environment in which the existing paper prescription can be transferred in the form of QR codes using mobile handsets as one of practices from the perspective of user service. QR codes can minimize the burden resulting from the process of the output, delivery and storage of paper prescriptions. In addition, they can utilize the representation of the information in a wide variety of ways, and they are considered to be media that can minimize the risk of personal information exposure and falsification due to the restoration and encryption of the information. Accordingly, the application of QR codes to the medical field is expected to improve confidentiality ad storage capability of the information, along with users' convenience.