• The Journal of the Korea Contents Association
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• v.5 no.3
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• pp.9-17
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• 2005

Recently, there are rapid development of information and communication technology and rapid growing of e-business users. We propose a method for security problem on the internet environment which changes from wire internet to wireless internet or wire/ wireless internet. Wireless e-business adopts credit card WPP protocol and AIP protocol proposed by ASPeCT. WAP, one of the protocol used by WPP has weakness of leaking out information from WG which connected wire and wireless communication. Certification chain based AIP protocol requires a lot of computation time and user IDs are known to others. We propose a Micro-Payment protocol based on credit card. Our protocol use the encryption techniques of the public key with ID to ensure the secret of transaction in the step of session key generation. IDs are generated using ECC based Weil pairing. We also use the certification with hidden electronic sign to transmit the payment result. The proposed protocol also solves the privacy protection and Non-repudiation problem.

• Journal of Korean Clinical Nursing Research
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• v.22 no.1
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• pp.56-67
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• 2016

Purpose: The purpose of this study was to develop an evidence-based nursing protocol for peripheral intravenous catheter management in hospitalized children. Methods: The preliminary protocol of this study was developed based on domestic and foreign guidelines, research, a survey and an analysis of medical records in a university hospital. It is a methodological research to develop evidence-based nursing protocol of peripheral intravenous catheter management verified by content validity by a group of specialists and users. Results: The specialists' verification of validity in the preparatory protocol had a CVI level of 0.94 and the propriety and conveniency of users had an average of $3.0{\pm}0.52$. The final evidence-based nursing protocol was composed of 5 areas (education, dressing and fixation, maintenance and replacement, observation and record, and coping to complication) with 46 specific recommendations. Conclusion: Based on domestic and foreign research and guidelines verified by specialists and users, the findings in this study provide a simple, applicable and evidence-based nursing protocol for peripheral intravenous catheter management in hospitalized children. By the clinical application of this protocol, nurse tasks in managing peripheral intravenous catheter can be performed with more scientific evidence and be standardized.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.5 no.1
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• pp.7-17
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• 1998

Since patients who have suffered from strokes have chronic health problems, the development of a protocol for home care nursing is required. Therefore, this study was done to test the effects of such a protocol on stroke patients. This study was conducted by using a single group pre-post design. The subjects for the study were 13 home care nurses and 30 home care patients who had a stroke. Data collection was done from October 1997 to February 1998. The collected data was analyzed using the Wilcoxon signed rank test and paired t-test and the results were as follows : 1. The first hypothesis that 'working satisfaction of home nurses would be higher after using the home care protocol' was supported. 2. The second hypothesis that 'patients' satisfaction would be higher after using the home care protocol' was rejected. 3. The third hypothesis that 'the level of ADL of patients would be higher after using the home care protocol' was supported. In conclusion, by using a home care protocol, the satisfaction of nurses' work and the ADL of patients increased, and the patients' satisfaction also increased without statistical significance. The above results confirm that the application of a home care protocol is very effective. Thus, this protocol can be helpful in the quality care of stroke patients. Therefore, developing and organizing protocols, according to health problem, can be useful for beginner nurses who interact with high risk patients.

• Journal of Korean Academy of Nursing
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• v.53 no.3
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• pp.275-294
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• 2023

Purpose: This study aimed to develop an evidence-based extracorporeal membrane oxygenation (ECMO) nursing protocol for critically ill patients receiving ECMO treatment by using an adaptation process, and to verify the effects of the protocol. Methods: The protocol was developed according to the adaptation guidelines. A non-randomized controlled trial was conducted to test the protocol's effects. Data were collected between April 2019 and March 2021. The differences in physiological indicators and complication rates between the two groups were investigated using a chart review to evaluate patient outcomes. The nurses' outcome variables were evaluated using a questionnaire. Results: First, after reviewing 11 guidelines by appraisal of the guidelines for research and evaluation collaboration II, 5 guidelines with a standardization grade of over 50 points were selected. An ECMO nursing protocol was developed based on these guidelines. Second, there were no statistically significant differences in physiological indicators between the two groups of patients. However, the experimental group showed a statistically significant decrease in the infection rate (p = .026) and pressure injury rates (p = .041). The levels of satisfaction with ECMO nursing care, and empowerment and performance of the nurses who used the ECMO nursing protocol were higher than those of nurses who did not (p < .001). Conclusion: This protocol may help prevent infections and pressure injuries in patients, and improve nurses' satisfaction and empowerment. The nursing protocol developed for critically ill patients receiving ECMO treatment can be utilized in evidence-based nursing practice.

• 제어로봇시스템학회:학술대회논문집
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• 2004.08a
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• pp.358-362
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• 2004

Verification and testing are complementary techniques that are used to increase the level of confidence in the correct functioning of communication systems as prescribed by their specifications. This paper presents an experience of model checking for a formal railway signaling protocol specified in LTS (Labeled Transition System). This formal approach checks deadlock, livelock and reachability for the state and action to verify whether properties expressed in modal logic are true on specifications. We also propose a formal method for semi-automated test case generation for a railway signaling protocol described in I/O FSM (Input/Output Finite State Machine). This enables the generation of more complete and consistent test sequence for conformance testing. The above functions are implemented by C++ language and included within RSPVTE (Railway Signaling Protocol Verification and Testing Environment).

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.550-552
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• 2004

In this paper, access protocol is proposed that can optimally control the radio buoy system used for inshore and deep sea fishery. Proposed protocol can minimize the power consumption of radio buoy and can ensure high security from burglary and loss, and it enable a mother ship to control remotely more than 150 radio buoys simultaneously. GPS technology and remote control techniques are used to monitor the exact location and status of the radio buoy system in real time.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.470-473
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• 2002

Most networks for automation are tuned to an expected traffic at their design stage. During their actual operations, however, the networks experience considerable changes in traffic from time to time. These traffic changes caused by common events like machine failure and production schedule change may adversely affect the network performance and, in turn, the performance of the connected devices. This paper presents communication delay model for Profibus token passing protocol, and introduces TTR selection methods to maintain a uniform level of network performance at all stations under changing network traffic.

• Journal of Korea Multimedia Society
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• v.19 no.11
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• pp.1871-1877
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• 2016

In this paper, a Wireless USB (WUSB) protocol is adopted for development of ASMD (Adaptive Source Multi Device) N-screen wireless services. WUSB is the USB technology merged with WiMedia PHY and Distributed-MAC (D-MAC). However, the current WUSB protocol can't provide seamless N-screen streaming services to moving WUSB devices in home network environment. Therefore, to provide the ASMD N-screen services through WUSB based on D-MAC protocol, a channel management scheme is proposed to support seamless mobility between adjacent ASMD groups for wireless IPTV N-screen services. In simulation results, proposed ASMD channel management (ACM) scheme is compared with conventional WUSB channel management scheme in view points of throughput, average path interference and energy consumption according to various numbers of nodes and elapsed simulation times. Through simulation results, it is explained that proposed ASMD channel management (ACM) scheme should be adopted in the WUSB protocol to realize ASMD N-screen wireless services.

• Proceedings of the KIEE Conference
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• 1999.11c
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• pp.649-651
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• 1999

This paper presents SNMP remote management system for power plants using micro-controller. Control board supporting LAN-based remote monitor and control is produced and MMI program on PC is also constructed. To expand into Internet, SNMP(Simple Network Management Protocol), the standard network management protocol of TCP/IP protocol suite, is ported to this control board consisted of micro-controller, 80c196KC, and LAN controller, Am7990DC. To overcome the constraints of CPU performance and memory capacity, TCP/P protocol suite is simplified and informations needed to management were implemented in accordance with MIB(Management Information Base) specified in RFC. Also monitoring software is constructed by Visual Basic.

• Proceedings of the KIEE Conference
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• 2005.07a
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• pp.105-107
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• 2005

The Power system is one of the biggest and complicated non-linear systems. It is necessary to develop the power defense system to manage the power system efficiently and to prevent from the power failure, black out in nationwide, that is caused by a specific bus or power transmission line. In this paper, the power system developed here is called 'Power Management Agent System' in which a protocol to communicate for this system is developed. The protocol is designed based on the IEEE 1344 for synchronized system with GPS. Also we developed a simulation system to demonstrate how to implement the protocol.