• 인터넷정보학회논문지
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• 제10권1호
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• pp.19-31
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• 2009

네트워크 관리는 다양한 네트워크 장비들을 적절하게 구성하고 운용하는 것이다. 대부분의 네트워크 관리 시스템은 장치구성 관리자, 성능관리자, 장애 관리자 등과 같은 기본부분으로 구성된다. 최근 광역의 개방형 인터넷의 등장으로 네트워크의 규모가 커지고 복잡해짐에 따라 다양한 네트워크 장비 및 호스트들에 대한 관리 역시 복잡해지고 중요하게 되었다. SNMP기반의 네트워크에서 다양한 종류의 네트워크 장비들을 관리하기 위한 네트워크 관리 프로그램을 개발하기 위해서는 많은 비용과 시간이 소모된다. 따라서 네트워크 환경을 확장하고 다양한 네트워크 장비들을 효율적으로 제어하기 위해서 이 논문에서는 트리거 기반의 네트워크 관리프로그램 자동생성기를 가지는 능동적인 네트워크 관리시스템을 제안한다. 트리거는 이벤트 컨디션 액션의 능동규칙으로 표현되어지며 네트워크 환경에 상태 변화가 생기는 경우 이를 감지하는 역할을 한다. 제안된 능동적인 네트워크 관리 시스템은 네트워크 엘리먼트들을 추가하거나 변경하는 경우 트리거 규칙이 활성화되고 네트워크관리시스템의 구성요소들이 상호작용하여 SNMP라이브러리에서 제공되는 정보들을 이용하여 새로운 네트워크 장비 관리 프로그램을 자동으로 생성한다. 능동적인 네트워크 관리 시스템은 자동생성된 네트워크 관리 프로그램을 이용하여 SNMP 네트워크 구성을 효율적으로 확장하는 것이 용이하다. 또한 ANMS 는 네트워크 관리프로그램의 개발기간 단축과 비용절감의 효과를 가져온다는 것을 실험을 통해서 확인 할 수 있었다.

• 한국철도학회논문집
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• 제11권6호
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• pp.581-587
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• 2008

본 연구에서는 철도건설로 인한 네트워크 효과를 고려할 수 있는 철도망 설계문제(Railway Network Design Problem, RNDP)를 제안하고 이를 풀기 위한 알고리듬을 제시코자 한다. 이를 위하여 bi-level 프로그램으로 모형을 구축하며, 상위문제는 총 통행비용을 최소화시키는 설계변수(design variable)를 구하는 문제이고, 하위문제(lower level problem)는 이에 따른 철도 승객의 철도선택 문제로 표현된다. 따라서, 본 연구의 철도망 설계문제는 철도건설로 인한 승객들의 노선변화를 고려할 있는 장전이 있으며 이점이 기존 철도망설계문제와의 차이점이다. 본 연구에서 제안된 모형과 알고리듬을 2개의 예제 철도망에 적용해 본 결과, 합리적인 해를 산출하여 향후 철도망 계획분야에 적용할 수 있음을 확인하였다.

• 보건교육건강증진학회지
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• 제29권1호
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• pp.1-11
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• 2012

Objectives: The nurse visiting health service named Customized Visiting Health Care Program(CVHCP) requires the service innovations incorporating community support into a local service network. The purpose of this study was to assess the community network in CVHCP and inform improvement in this network. Methods: We used Social Network Analysis(SNA) in one CVHCP at H city. Network links were generated by self-administered questionnaires by the 14 community resource centers who quantified their links to all other 25 agents on the list. Links were analyzed by a dichotomous scale for any experience of collaboration and a scored scale of 0 to 3 for level of collaboration using UCINET v6. Results: A list of 14 agents was generated, and local network was dominated by the Public Health Center and a local welfare center named Unlimited Care Center(UCC). According to centrality score, UCC was the most prominent agent, and Public Health Center was the most influential agent, being a link in the pathway flow between other agents for 9.5% of contribution. CVHCP scored lower rank of prominent with 30.8% of other agents reported referring to it. Conclusions: Social network analysis provides a useful network description for informing and evaluation service network improvement in maximizing its service for the CVHCP.

• 근관절건강학회지
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• 제22권1호
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• pp.13-19
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• 2015

Purpose: The purpose of this study was to identify the relationships among network centrality, psychological well-being (PWBS), and intention to exercise maintenance in participants of an aquatic exercise program. Methods: Using a single-experimental design, 17 osteoarthritis patients participated in an aquatic exercise program. The questionnaire to connect the network of members was used to peer nomination by Moreno (1953). Data were analyzed with the UCINET using centrality (degree, closeness, betweenness) and SPSS using descriptive statistics, wilcoxon signed ranked test, and spearman's rho. Results: Closeness centrality, PWBS, and intention to exercise maintenance were significantly different between 4 weeks and 8 weeks. At 4 weeks, PWBS was positively correlated with closeness centrality. Intention to exercise maintenance was positively correlated with degree, closeness, and betweenness centrality. At 8 weeks, PWBS was positively correlated with closeness centrality. Intention to exercise maintenance was positively correlated with closeness centrality. Conclusion: The aquatic exercise program can be effective in increasing closeness centrality, psychological well-being, and intention to exercise maintenance. This was the first study attempted to analyze construction of member relationships in osteoarthritis patients participating an exercise program by using social network analysis.

• 대한간호학회지
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• 제35권3호
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• pp.526-534
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• 2005

Purpose: This study was designed to investigate the effects of a network program to prevent obesity and improve dietary habits for patients taking antipsychotics or antidepressants. Method: Thirty-seven patients in two hospitals were assigned to a control group (21 patients) or an intervention group ( 16 patients). The intervention group was evaluated to analyze the effect of the network program for six weeks after the program. Result: There was a difference in the rate of increased body weight between the control group and the intervention group. Notably, the body weight of both groups before the intervention was significantly increased. However, after the intervention the body weight of the intervention group rarely increased, whereas, the body weight of the control group was significantly increased as expected. There was an observed difference in diet between the control group and the intervention group. After the intervention, caloric intake per day of the intervention group decreased. Also, the duration of the meal of the intervention group after the intervention was longer than before. Conclusion: The network program for preventing obesity and improving dietary habits of patients taking antipsychotics or antidepressants was effective. The study shows that a network program can be an important part of a nursing intervention in clinical practice.

• 대한전자공학회논문지
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• 제10권6호
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• pp.62-71
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• 1973

능동 filter에 쓰에는 Gyrator를 구성하여 그 특성을 ECAP(Electronic Circuit Analysis Program)로써 해석하였고 그 결과로 나타난 문제점을 해결하고 특성을 개선하기 위한 조치로서 Colletor 측의 저항을 높이기 위하여 정전류전원회로를 이용하여 전원전압을 줄이고 ECAP로써 해석하여 그 조치가 정당함을 확인하였다.

• 대한간호학회지
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• 제38권3호
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• pp.372-382
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• 2008

Purpose: The purpose of this study was to develop a multidimensional suicide prevention program for Korean elders by utilizing a community network and to evaluate its effect. Methods: A non-equivalent control group pretest-posttest design was used. The subjects were recruited from two different elderly institutions located in D city and K province, Korea. Nineteen subjects in the control group received no intervention and 20 subjects in the experimental group received a multidimensional suicide prevention program. Results: There were more significant decreases in depression, suicide ideation, and increases in life satisfaction in the experimental group compared to the control group. Conclusion: According to the above results, the multidimensional suicide prevention program for Korean elders decreased stressful events like depression, and suicide ideation and increased life satisfaction through the community network. These findings suggest that this program can be used as an efficient intervention for elders in a critical situation.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2007년도 하계학술대회 논문집
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• pp.473-475
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• 2007

This paper shows a monitoring program, and this Exploiting monitoring program is a program for real-time monitoring the current and voltage which is produced by wind generators. And this program helps to check efficiency and situation of the wind generator; therefore, it uses LabVIEW for this real-time monitoring program. It is expensive that the specific network is needed in the common LD (long distance) data transmission. So in this paper, it shows the transmission method which use ezTCP/LAN (Serial-port${\leftarrow}{\rightarrow}$LAN-port converter) and combine with the TCP/IP based on LabVIEW. And in this method the specific network is not needed for using the Internet network to transmit the data, which can reduce the application cost of the system.

• Asia pacific journal of information systems
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• 제29권3호
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• pp.489-502
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• 2019

The WeChat mini program is an application embedded in WeChat that users can use without downloading and installing. After it was officially released in 2017, many travel enterprises have launched their own mini programs on the WeChat platform. This study applies affordance theory to investigate the WeChat mini program's role in tourism activities through social network analysis using the R programming language. The authors searched the topic of "how do you perceive the travel-related WeChat mini program" and then crawled the 200 comments found; 180 comments were analyzed after data cleansing. The results show that travel-related WeChat mini programs play a very important role in Chinese social network tourism activities. This paper found that WeChat played a more active role in various tourism-related interactions with Chinese social networks. Moreover, the results show how affordance theory is applied to the use of WeChat mini programs.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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• pp.255-257
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• 2006

This paper proposed a platform which includes both Network processor and DSP for flexible IED. The Network processor is one of the Intel's IXP4XX Product Line family and the DSP is one of the TI's C6000 family. An embedded Linux is ported in Network processor so that a DSP program can be downloaded to Network processor through ethernet and then downloaded to DSP. Using this method, various algorithms according to IED can be applied to the Network processor board. Maximum ten ADCs can be connected because there is a CPLD between DSP and ADC. That is, the network processor board which can measure maximum 40 channels is implemented. In DSP program, thread and double buffering methods are used not to miss voltage samples. The Network processor board is verified using a method that eight channel voltage signals converted to digital are transmitted to server through both DSP and IXP425.