• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.85-86
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• 2013

스마트폰의 급격한 확산은 우리 일상생활에 패러다임을 바꾸어 놓고 있다. 언제 어디서나 스마트폰을 통해 기존 PC에서 하던 작업들을 손쉽게 할 수 있다. 그런데 이러한 편리한 장점에도 불구하고 스마트폰의 도난이나 분실로 인하여 기기 내부에 저장된 개인정보 유출은 심각한 사회 문제를 발생시키고 있다. 뿐만 아니라 개인정보 유출은 악의적인 개인이나 집단에 의해 범법행위에 악이용될 가능성도 있다. 따라서 스마트폰의 도난이나 분실이 발생하였을 때 원격 제어를 통해 기기 스스로 개인정보를 파괴하게 하고 또한 대리점이나 고객센터로 분실신고하면 즉시 또는 기기 전원을 켜는 순간 저장된 정보를 자동으로 삭제하는 기술개발을 제언한다.

• Journal of Korean Home Economics Education Association
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• v.4 no.1
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• pp.1-15
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• 1992

The aim of the research is to develop a PC based courseware which is programed to drafts clothing patterns. The pattern making are numerically formulized. The of the program were as follows；1. Menu and instructions are displayed in Korean Language. 2. Easy step-by-step instructions explaining how to draw basic pattern and design pattern. 3. Low cost personal computer and general purpose printer are used. The source program was written in C-language and compiled using Turbop C. The Bezier spline is used to draw curves of pattern and to display Korean characters and pattern on same screen simultaneoulsy, Korean characters are drawn graphically. The low cost IBM Personal Computer or compatibles with Hercules Graphic Card is required to run this grogram.

• Proceedings of the KSME Conference
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• 2003.11a
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• pp.1056-1061
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• 2003

CD-R disc drive is one of the basic options of personal computer today. In this trend, various CD-R discs can be purchased in every market. Even very low quality discs are in market too. Today's CD-R disc drive is being operated over 10,000 RPM. So the possibility of the disc fracture is growing faster. Sometimes, during the test of a new disc drive by various methods to confirm the quality of it, fracture of the disc happens. And it happens in end user's personal computer scarcely. In this reason, new methods to confirm the quality and the failure mechanism of the optical disc are studied in this paper.

• Proceedings of the KOSOMBE Conference
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• v.1993 no.05
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• pp.132-133
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• 1993

This paper describes the first attempt to design of an intelligent HDF control system for acute or chronic renal failure patients. As the fist step to achieve our objective, we have developed a HDF machine control system based on personal computer, which provides convinient operating procedure using menu driven software and also treatment decision aid procedure using patient data retrival system.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10e
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• pp.151-153
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• 2002

Mobile handhold devices such as PDA(Personal Digital Assistant) and Cellular Phone are more and more popular for personal web surfing. But today, most mobile handheld devices have relatively poor web browsing capability because of the small bandwidth of wireless connection, the small speed of CPU, the small capacity of RAM and Flash ROM, the small display size of LCD and the short lifecycle of battery. Users have to endure bigger communication latency than Desk PC's one because of these factors. In this paper, we propose an effective pre-refresh mechanism for handheld device's embedded web browser so as to make user's web surfing faster. The experiment was done using the simulator designed by ourselves and the experiment result demonstrates the proposed mechanism has a good performance to make web surfing faster.

• Journal of the Korean Institute of Navigation
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• v.24 no.4
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• pp.219-226
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• 2000

Ship's position data obtaining method is one of the very important factor in navigation. Nowadays, GPS(Global Positioning System) using the earth orbiting satellites are equipped and operated for the position finding. Because it provides more precise position information than other equipments and is very convenient for navigator. In this study, it is designed to develop the GPS simulator for everybody being able to practise the GPS operating skill like as navigation planning, navigation calculating etc. And also, it can be operated with personal computer without real GPS receiver. This simulation system is based on the real GPS receiver and built by the visual basic 5.0 program. And it displays the ship's position and navigating information and plots the ship's moving track on the screen in real time according as initial setup data-main engine's rpm, rudder angle, departure position and waypoint.

• Journal of the Korean Society for Precision Engineering
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• v.17 no.8
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• pp.94-99
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• 2000

In this study applied the general controller into th 16bit ordinary controller and recommand the simulator features the real system's propeties without DSP(Digital Signal Processing)-card. This simulator is designed to be synchronized in real time using A/D(Analog-Digital) convert and D/A(Digital-Analong) convert. In this study DSP card which is usually used for complex calculation is replaced with personal computer and designed to control, control-force using with the 16-bit micro processor.

• Journal of Convergence for Information Technology
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• v.9 no.9
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• pp.27-32
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• 2019

Along with the growth of u-Healthcare, we propose a security enhancement based on network separation for CloudHIS with for handling healthcare information to cope with cyber attack. To protect against all security threats and to establish clear data security policies, we apply desktop computing servers to cloud computing services for CloudHIS. Use two PCs with a hypervisor architecture to apply physical network isolation and select the network using KVM switched controller. The other is a logical network separation using one PC with two OSs, but the network is divided through virtualization. Physical network separation is the physical connection of a PC to each network to block the access path from both the Internet and the business network. The proposed system is an independent desktop used to access an intranet or the Internet through server virtualization technology on a user's physical desktop computer. We can implement an adaptive solution to prevent hacking by configuring the CloudHIS, a cloud system that handles medical hospital information, through network separation for handling security enhancement.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.2
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• pp.115-121
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• 2014

Since the rapid development of information age and information technology might be considered to cause environmental problems, Green IT is perceived as core technology for low carbon green growth and the minimum waste of electricity. In this vein, Green IT is becoming new paradigm of focusing on natural environment. This study examines current various IT required for green growth, and studies various methods for diminution of carbon discharge in Korea and other countries. Especially, it focuses on the diminution effect of carbon discharge by using Green PC, and compares the difference of voltage, voltaic current, and the use of electricity between Normal PC and Green PC by using HPM-300A, and measures carbon discharge of Normal PC and Green PC. The result shows that the diminution effect of $CO_2$ discharge of Green PC is amount to 11.5Kg per year, and the effect of green growth is up to the conservation of 2 or 3 pine trees.

• Journal of Multimedia Information System
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• v.5 no.3
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• pp.179-188
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• 2018

In order to overcome the problems of contact palmprint recognition, a non-contact palmprint recognition system is developed on personal computer (PC) platform. Three methods, namely "double-line-single-point" (DLSP), "double-assistant-crosshair" (DAC) and "none-assistant-graphic" (NAG), are implemented for the palmprint localization to solve the severe technical challenges, including the complex background, variant illuminations, uncontrollable locations and gestures of hands. In NAG, hand segmentation and the cropping of region of interest are performed without any assistant graphics. The convex hull contour of hand helps detect the outside contour of little finger as well as the valley bottom between thumb and index finger. The three methods of palmprint localization have good operating efficiency and can meet the performance requirements of real-time system. Furthermore, an attendance system on PC platform is designed and developed based on non-contact palmprint recognition.