• Korean Journal of Clinical Pharmacy
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• v.33 no.1
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• pp.35-42
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• 2023

Objective: There is a growing interest in the safe use of medications in pregnant and breastfeeding women. Therefore, the purpose of this study is to find ways to improve education about safe medication use by investigating the status of medication use of pregnant and breastfeeding women, and by evaluating their knowledge, attitudes, and practices toward safe medication use. Methods: In this study, a self-report questionnaire was conducted on pregnant or breastfeeding women in Seoul and Gyeonggi Province. The questionnaire consisted of the following four sections; 1) sociodemographic characteristics of participants, 2) experience of medication use, 3) experience of being educated on safe medication use, and 4) knowledge, attitudes, and practices about medication use during pregnancy/breastfeeding. Results: A total of 203 participants were included in the analysis. Of these, 38.4% reported to take prescription medications during pregnancy and breastfeeding. Regarding education on safe medication use, nearly 90% of the participants answered that they were not educated or were unsure whether they had it. In the knowledge-attitude-practice evaluation on safe medication use, the knowledge level was the highest (mean, 4.45), followed by the attitude level (mean, 3.58) and the practice level (mean, 3.33). The preferred education method of the participants was online education using a computer or mobile phone application, etc. Conclusions: This study suggests that there is a need for systematic and effective education that can link knowledge of safe medication use with attitudes and practices in pregnant and breastfeeding women.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.920-923
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• 2012

Recently, a Smartphone than a normal phone functions for computing ability, connectivity and communication is used as a handheld device, as used in the mobile social networking has been a breakthrough. This advanced Smartphone social networking and social life of the everyday of people living in communication found that many were affected. In this paper, the value of Smartphones and Smartphone users who use social networking to see how any of the benefits and the future of social networking between people on the impact of communications were analyzed.

• Journal of the Ergonomics Society of Korea
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• v.27 no.2
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• pp.59-65
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• 2008

Product usability consists of many attributes such as learnability, efficiency, memorability, and so on. In particular, learnability is one of the most important attributes in product usability. Therefore, many people consider the primary criterion for a good user interface to be the degree to which it is easy to learn. Learnability represents the degree of how much can easily learn the usage of a product. It concerns the features of the interactive system that allow novice users to understand how to use it initially and then how to attain a maximal level of performance. In this study, we studied on the application of learning curve to evaluate product learnability. In order to validate the applicability, we carried out simple experiment using mobile phone. We got task completion times through the experiment and predicted the times using learning curve model. And then, we compared prediction times to task completion times. Finally, we identified that learning curve could apply to predict and compare product learnability.

• Proceedings of the IEEK Conference
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• 2005.11a
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• pp.529-532
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• 2005

In this paper, we propose a motion picture processor for CSTN LCD. In order to eliminate flicker phenomenon, the proposed processor suggests a new driving scheme, SFP(Subgroup Frame Pattern). We use an input image compression methode from RGB(:8:8;8) to RGB(5:6:5) to improve quality of the image and apply the image to CSTN Module. The proposed hardware architecture has been implemented and verified using a FPGA on prototype board. The proposed Algorithm provide a lower computational complexity. Therefore the processor can be used in the display devices such as PDA, mobile phone and PMP(Portable Multimedia Player).

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.04a
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• pp.545-550
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• 2010

Due to the advancements in mobile communication recently, the smartphone is coming to wide use in variety of fields with powerful functions which are GPS, Wi-Fi, built-in camera, and so on. I'm going to discuss the application implementation using Smartphone in the e-Navigation.

• Electronics and Telecommunications Trends
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• v.16 no.3 s.69
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• pp.32-38
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• 2001

최근 휴대전화 이용자가 급증하면서 이동통신시스템의 수요에 대응하는 여러 가지 효율적 연구개발이 진행됨과 동시에 이러한 무선 복사 이용 기기에 의한 건강위해에 대한 관심과 우려 또한 높아져, 휴대전화로 인한 인체의 건강 영향에 대한 연구가 활발하다. 전자파인체보호기준은 각종의 의학, 생물학 및 공학적 연구 결과로부터 매우 낮은 주파수에서부터 수백 GHz까지 권고되고 있으나, 본 고에서는 주로 800~2,500MHz 정도의 대역에서 흔히 사용되고 있는 휴대전화에 대한 전자파인체보호기준을 소개하고 현재 휴대전화와 관련한 생물학적 영향에 대한 국내.외 연구동향을 살펴보고 결론을 맺도록 하겠다.

• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.185-190
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• 2007

This article describes a development CDMA LBS in order to apply to "Control System of Underground Infrastructure Fire Accident" which one of U-City Projects of Seoul City. Our goal guides taking shelter of the sufferer it will not be able to use a GPS when the fire occurs from subway station. There are Location measurement methods which measures the AOA(Angle of Arrival) of the signal which it sends with the MS(Mobile station) from the BS(Base station), an electronic delivery time (TOA:Time of Arrival) and the relative difference of electronic arrival time from Base stations (TDOA:Time Difference of Arrival). This time the error due to a multiplex course error and near-far problem and NLOS(Non Line of Sight). We are planning to construct the Test Bed which is an error below 1 meter.

• Journal of the Korean Vacuum Society
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• v.8 no.4B
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• pp.536-540
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• 1999

We have developed a refractory WNx self-aligned gate GaAs metal-semiconductor field-effect transistor(MESFET) using $SiO_2$ side-wall process. The MESFET hasa fully ion-implanted, planar, symmetric self-alignment structure, and it is quite suitable for integration. The uniform trans-conductance of 354nS/mm up to Vgs=+0.6V and the saturation current of 171mA/mm were obtained. As high as 43GHz of cut-off frequency hs been realized without any de-embedding of parasitic effects. The refractory WNx self-aligned gate GaAs MESFET technology is one of the most promising candidates for realizing linear power amplifier ICs and multifunction monolithic ICs for use in the digital mobile communication systems such as hand-held phone(HHP), personal communication system (PCS) and wireless local loop(WLL).

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.2414-2417
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• 2005

Compact Camera Module(CCM) is widely used in PDA, Celluar phone and PC web camera. With the greatly increasing use for mobile applications, there has been a considerable demands for high speed production of CCM. The major burden of production of CCM is assembly of lens module onto CCD or CMOS packaged circuit board. After module is assembled, the CCM is inspected. In this paper, we developed the image capture board for CCM and the imaging processing algorithm to inspect the defects in captured image of assembled CCMs. The performances of the developed inspection system and its algorithm are tested on samples of 10000 CCMs. Experimental results reveal that the proposed system can focus the lens of CCM within 5s and we can recognize various types of defect of CCM modules with good accuracy and high speed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2000.05a
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• pp.398-401
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• 2000

This paper describes the standardization of remote monitoring and controlling system for nursery electrical facilities. The proposed system have three operating modes of motoring, controlling, and fault-notifying. In fault-notifying mode, the local unit is designed to send messages on failure of the electrical facilities to the central computer, mobile phone, and pager. Also, the local unit is consisted of 24-input and 8-output port needed for monitoring and controlling the facilities. With the use of this standardized system, we could expect the effective management in every phase of nursery facilities.