• 의료커뮤니케이션
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• 제13권2호
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• pp.103-108
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• 2018

Background: This study was to analyze gender differences in health status, health behaviors and disease prevalence of multi-cultural family in order to contribute to health promotion of them. Methods: This study used raw data from the Korea Community Health Survey(KCHS) which was performed in 2015. Among them, 3,045 multi-cultural family members were included in this study. Data was analyzed using SPSS 21.0 for descriptive statistics, t test, Chi-square test, and Pearson's correlation coefficients. Results: According to gender, depression and subjective health were different in health status. High risk drinking, hypertension, dyslipidemia, arthritis, and obesity prevalence rate were higher in males than females significantly(p<.001). Conclusion: Based on the study results, it is necessary to establish a public health care program to improve health and welfare of multi-cultural families.

• 한국산학기술학회논문지
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• 제19권3호
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• pp.509-519
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• 2018

본 연구에서는 청소년들을 대상으로 하여 부모의 사회경제적 지위를 통제하기 전과 통제한 후에 자녀가 지각한 부모-자녀 간 의사소통 방식과 청소년의 자아존중감이 정서적 자율성과 행동적 자율성에 어떻게 영향을 미치는지 살펴보고자 하였다. 이를 위하여 중고등학교 재학 중인 청소년 403명을 대상으로 설문을 실시하였고, 최종적으로 367명의 자료를 분석하였다. 연구 결과, 첫째, 부모의 사회경제적 지위가 통제된 후에, 청소년의 정서적 자율성에는 아버지-자녀 간 폐쇄적 의사소통과 어머니-자녀 간 개방적 의사소통이 유의한 영향을 미치는 것으로 나타났다. 둘째, 부모의 사회경제적 지위는 청소년의 행동적 자율성에 대한 유의한 영향력이 있음을 발견할 수 있었다. 특히 부모의 사회경제적 지위 가운데 부모의 수입과 어머니의 학력이 행동적 자율성에 유의한 영향을 미쳤음을 발견할 수 있었다. 더 나아가, 부모의 사회경제적 지위가 통제된 후, 청소년의 행동적 자율성에는 어머니-자녀 간의 폐쇄적 의사소통과 자아존중감이 유의한 영향력을 나타내었음을 알 수 있었다. 이러한 결과를 통해 청소년의 정서적 자율성과 행동적 자율성을 함께 고려하여, 이들에 영향 미치는 청소년의 부모요인, 청소년의 심리적 요인, 아울러 부모의 사회 경제적 지위 요인을 종합적으로 이해할 수 있었다. 본 연구결과에서 제시된 구체적인 결과로써 청소년의 부모와 청소년들이 함께 참여하는 가족상담 프로그램의 구성에 적용할 수 있을 것이며, 청소년이나 부모를 위한 상담 개입을 위한 구체적인 전략 수립에도 이용할 수 있을 것이다.

• Journal of Welding and Joining
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• 제16권3호
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• pp.129-140
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• 1998

An interface system was developed to offer the welding capability to a robot controller which had not any embedded function for arc welding before, and also an arc sensor algorithm was proposed for weld seam tracking of the welding robot. For the interface system between the robot controller and welding equipments, data communication software and interface connections were composed. The interface system was mae to correspond welding condition, correction data, operation sequence and current status with the robot controller by mutual had shaking and digital signal transfer. Graphic user interface program developed under the environment of windows made it easy to monitor data communication and operation status, and to control welding and sensing sequence. Arc sensing algorithm proposed in this study to compensate torch position error was based on a fuzzy logic with the variables of current difference and current differenced change at torch weaving extremities. The developed interface system could be successfully implemented in between welding equipments and the robot controller, and showed normal status and exact function in data and signal communication between the systems. The whole robot welding system was then examined to verify its welding and seam tracking capabilities in horizontal fillet, vertical fillet, and 3-dimensional fillet weldment. The experiments revealed sound weld bead shapes and also good seam tracing results.

• 한국멀티미디어학회논문지
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• 제23권2호
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• pp.282-292
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• 2020

In order to minimize casualties from marine vessel accidents that occur frequently at home and abroad, it is important to ensure the safety of the passengers aboard the vessel in the event of an accident. There is an EPIRB system as a system for disaster preparedness in the marine situation currently on the market, but there is a problem that the price is very expensive. In order to overcome the cost problem, which is a disadvantage of previous system, LoRaWAN-based communication is used. LoRaWAN communication-based vessel positioning and risk detection system based on LoRaWAN communication transmits measurement data of each module using two Beacon and GPS modules to stably perform position measurement for both indoor and outdoor situations. The rider danger situation detection system can detect the safety status of the rider using the 3-axis acceleration sensor, collect data from the rider positioning system and the rider safety status detection system, and send to server using LoRa communication. When conducting communication experiments in the long-distance maritime situation and actual communication experiments using the implemented system, it was found that the two experiments showed over 90% communication success rate on average.

• 한국컴퓨터정보학회논문지
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• 제21권11호
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• pp.59-64
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• 2016

In this paper, we design and implement an Application based on android platform, which can control arduino Prime Smart Car using Bluetooth communication. This Application consist of Bluetooth communication module, manual mode module, and line-tracer mode module. In the Bluetooth communication module, it checks the on/off status of Smartphone Bluetooth. If Bluetooth status is off, it activates Bluetooth, selects the corresponding device from Bluetooth device list, and connects with a pair. In order to reduce coding time, we implements Bluetooth communication using inherited class from android Bluetooth package. In the manual mode module, it implements six direction moving button and stop button, which can control arduino Prime Smart Car. In the line-tracer mode module, it implements Prime Smart Car with self-driving function using TCRT5000 sensor. And moving button and stop button is disabled.

• 한국정보통신학회논문지
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• 제24권8호
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• pp.1109-1112
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• 2020

This paper presents a low cost hardware message passing engine of enhanced atomic pipelined broadcast based on processing node status. In this algorithm, the previous atomic pipelined broadcast algorithm is modified to reduce the waiting time until next broadcast communication. For this, the processor change the transmission order of processing nodes based on the nodes' communication channel. Also, the hardware message passing engine architecture of the proposed algorithm is modified to be adopted to multi-core processor. The synthesized logic area of the proposed hardware message passing engine was reduced by about 16%, compared by the pre-existing hardware message passing engine.

• 정보교육학회논문지
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• 제8권3호
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• pp.281-290
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• 2004

컴퓨터 기술과 통신 기술이 빠르게 발전하면서 맞게 된 정보사회는 인간 생활 전반의 편리함과 풍요로움을 가져 온 반면에 윤리적 문제를 포함한 역기능의 문제도 심각한 것으로 나타나고 있다. 이에 본 연구는 정보통신의 발달로 인하여 더욱 절실히 요구되고 있는 정보통신 윤리의식의 실태를 알아보는데 목적이 있다. 미래사회를 주도할 아동과 그 교육을 책임지고 있는 학부모를 대상으로 정보통신 윤리에 대한 의식수준을 조사한 후 이를 토대로 정보통신의 역기능을 줄이고 건전한 정보통신 윤리교육을 위한 가정과 학교에서의 실천 방안을 제시한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권8호
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• pp.4227-4240
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• 2019

In this paper, we present our proposed magnetic induction based wireless communication system. The proposed system is designed to perform communication as well as distance measurement in underground environments. In order to improve the communication quality, we propose and implement the adaptive channel compensation technique. Based on the fact that the channel may be fast time-varying, we keep track of the channel status each time the data is received and accordingly compensate the channel coefficient for any change in the channel status. By using the proposed compensation technique, the developed platform can reliably communicate over distances of 10m while the packet error rate is being maintained under 5%. We also implement the distance measurement block that is useful for various applications that should promptly estimate the location of nearby nodes in communication. The distance between two nodes in communication is estimated by generating a table describing pairs of the magnetic signal strength and the corresponding distance. The experiment result shows that the platform can estimate the distance of a node located within 10m range with the measurement error less than 50cm.

• 의료커뮤니케이션
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• 제13권2호
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• pp.159-166
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• 2018

Background: It is important to investigate patient satisfaction to improve the quality of healthcare. Among the many factors that affect patient satisfaction, perceived health status has been considered as one of the major factors. Therefore, we investigated patient satisfaction through patient experience in outpatient settings according to perceived health status. Methods: This cross-sectional study using questionnaires of patient experience and perceived health status from the Korean National Health and Nutrition Examination Survey 2015 included 4267 people aged over 19 years who met the inclusion criteria. Perceived health status was classified into three: good, fair, and poor. Questions about patient experience consisted of four items: doctor spending enough time with patients, doctor providing easy-to-understand explanation, doctor giving opportunity to ask questions or raise concerns, and doctor involving patient in decisions about care or treatment. Patient experience was classified into two: satisfied and non-satisfied. A multivariate regression model was used to analyze the data. Results: In the good perceived health status group, level of satisfaction was 79.2%, 88.5%, 83.3% and 87.2%, respectively for the four items targeting patient experience. In the poor group, level of satisfaction was 76%, 84.9%, 79.5%, and 83.1%, respectively for the four items. In multivariate logistic regression analyses, the odds ratios of good perceived health status group were 1.775 (1.347-2.338), 1.946 (1.356-2.793), 1.652 (1.218-2.240), and 1.665 (1.193-2.323) compared with the poor group. Conclusion: Perceived health status is associated with patient satisfaction. In particular, the better the perceived health status, the better the patient satisfaction through patient experience.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 하계종합학술대회 논문집(5)
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• pp.89-92
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• 2000

A wire communication module for PLC controller was developed. This system consists of RF module interface part, RS232 serial communication control part, LED display part and control S/W with GUI interface. RF communication frequency is controlled by PLL controlling and communication rate is also controlled as 1200 and 4800 bps. Communication and control status are displayed on LED. As a S/W part, graphic user interface on Window 95 O.S. was developed. To show the validity of the developed system, severial communication and control of PLC system were experemented.