• Journal of Korean Academic Society of Home Health Care Nursing
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• v.26 no.2
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• pp.133-144
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• 2019

Purpose: This study was conducted to verify the effectiveness of a cost management education program, focusing on the differences between a web-based group and a mobile-based group. Method: This was a quasi-experimental study using a two-group pretest-posttest design. Participants were 74 nurses in a web-based group and 69 nurses in a mobile-based group. Data were collected between January 2 and February 10. The cost management education program was configured such that the participants studied eight modules over four weeks. The after-program post-test was conducted for one week. Results: Both the web-based group and the mobile-based group showed significantly higher values for cost management knowledge (S=5.98, p<.001 and S=2.76, p=.006, respectively). The web-based group had statistically significantly higher values for cost management knowledge (S=4,461.50, p<.001) than the mobile group. Conclusion: The cost management education program showed improvement in knowledge in both the web-based and mobile-based groups; however, the web-based approach was more effective for nurses. A cost management education program which can be implemented effectively across all range of nurses is recommended.

• Journal of Institute of Control, Robotics and Systems
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• v.8 no.3
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• pp.270-274
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• 2002

This paper presents a teleoperation system that combines computer network and an autonomous mobile robot. We control remotely an autonomous mobile robot with vision over the Internet to guide it under unknown environments in the real time. The main feature of this system is that local operators need a web browser and a computer connected to the communication network and so they can command the robot in a remote location through the home page. The hardware architecture of this system consists of an autonomous mobile robot, workstation, and local computers. The software architecture of this system includes the client part for the user interface and robot control as well as the server part for communication between users and robot. The server and client systems are developed using Java language which is suitable to internet application and supports multi-platform. Furthermore. this system offers an image compression method using JPEG concept which reduces large time delay that occurs in network during image transmission.

• Journal of applied mathematics & informatics
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• v.38 no.3_4
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• pp.255-260
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• 2020

Today most students have a smartphone. Students learning numerical analysis can practice coding using their smartphone in the classroom without going to the computer lab. The tool NAPHP[1] makes it easy to practice coding using PHP in an internet web browser without installing a coding app on your smartphone. This paper introduces a debugging tool for the NAPHP.

• Proceedings of the Korean Information Science Society Conference
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• 2007.10a
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• pp.84-85
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• 2007

• Proceedings of the Korea Contents Association Conference
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• 2013.05a
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• pp.35-36
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• 2013

본 논문은 모바일 사용자들이 스마트폰(Android OS)을 통해 쇼핑몰을 접속할 때 사용자가 보기 원하지 않는 상품을 선택하여 웹 브라우저에서 보이지 않을 수 있도록 지원하는 프로그램(Application)을 제안한다. 프로그램은 웹페이지를 파싱하고 파싱된 데이터를 사용자에게 상품별로 선택할 수 있도록 제공한다. 선택된 데이터는 웹 브라우저를 통해 보여줄 때 제거하여 보여준다. 따라서 사용자는 사용자 필요에 맞게 재구성된 웹페이지를 이용할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11b
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• pp.1269-1272
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• 2002

현재 세계적인 이동통신 업체들은 대부분 XHTML Basic 을 수용하여 새로운 브라우저들은 WAP 프로토콜을 배제하고 TCP/IP 기반의 통신을 지원하는 경향을 나타내고 있다. 본 논문에서는 이러한 기술 추세를 반영하여 WAP 2.0 을 지원하는 PalmOS 용 XHTML 브라우저를 개발하였다. 본 브라우저의 특성은 이식성을 높이면서 휴대용 단말기의 자원 제약을 극복하기 위하여 이미지 변환 프락시를 활용하는 방식을 채택한 점이다.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.65-69
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• 2006

Cellular network evolution and development of multi-function cellular phones introduce new mobile business mode. Cellular operators provide mobile internet services using the mobile browser such as ME and WAP and the mobile multimedia platform such as WIPI, J2ME, and BREW. New mobile applications are developed using mobile platforms provided by cellular operators as cellular phones having multimedia solutions such as camera, MP3, MPEG, 3D game engine, DMB, PAN such as bluetooth, IrDA, W-LAN, and location information using GPS are developed. Content providers have problems of redevelopment of a mobile application for different mobile platforms. In this paper, we propose a conversion solution for interoperability of applications developed on different mobile platforms of WIPI and BREW. We analyze APIs of WIPI and BREW and develop conversion solutions.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38B no.12
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• pp.937-943
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• 2013

Internet Explorer is the popular internet browser the most in domestic. In some version of Internet Explorer, user information could be leaked cause CORS(Cross-Origin Resource Sharing) Internet Explorer support. Different before, without setup a malicious program, attacker can get the user information even account information, credit card usage list and user information with SNS or internet portal site logged in regardless of secure program. Not only Internet Explorer but also mobile browser, it could be. In this paper, we make study of the potential disclosure of user information by attack using CORS, second attack and the way to improvement of vulnerability of CORS.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.3
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• pp.661-668
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• 2005

This paper designs and implements wire/wireless web service system based on SOAP for price comparison dynamically using web service technoloies in real time. This web service system composes web service client module including functions of product search, product sort, product order and UDDI retrieval browser, and server module including functions of remote procedure call for product search/order and functions of UDDI publish browser, and mobile client module supporting functions for product search/order in wireless environments. This web service system can exchange product information based on SOAP messages and support independence of platform and flexible portability in environment conforming to SOAP, WSDL and UDDI standards.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.187-190
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• 2012

This paper proposes an one-time authentication system for web applications by making use of the quick-response code, which is widely used nowadays. The process is not time-consuming. It does not require any browser extensions or specific hardware to complete a task. The system uses QR code which is basically a two-dimensional black and white image encoding a piece of digital information. When a user logs into a site, the web server will generate a challenge encoded to form a QR code. The user captures a picture of QR code with a mobile camera which results in decoding the QR code. The challenge shall be sent back to the server; the web server then logs the PC browser in. The authentication using Challenge-Response is easy to understand and the process is fast. The system proposes the improvement of usability and security of online authentication.