• The Transactions of The Korean Institute of Electrical Engineers
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• v.61 no.3
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• pp.373-379
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• 2012

This paper presents a fault location algorithm based on the adaptively estimated value of the local sequence source impedance for faults on a parallel transmission line. This algorithm uses only the local voltage and current signals of a faulted circuit. The remote current signals and the zero-sequence current of the healthy adjacent circuit are calculated by using the current distribution factors together with the local terminal currents of the faulted circuit. The current distribution factors consist of local equivalent source impedance and the others such as fault distance, line impedance and remote equivalent source impedance. It means that the values of the current distribution factors can change according to the operation condition of a power system. Consequently, the accuracy of the fault location algorithm is affected by the two values of equivalent source impedances, one is local source impedance and the other is remote source impedance. Nevertheless, only the local equivalent impedance can be estimated in this paper. A series of test results using EMTP simulation data show the effectiveness of the proposed algorithm. The proposed algorithm is valid for a double-circuit transmission line system where the equivalent source impedance changes continuously.

• The Journal of the Korean dental association
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• v.51 no.12
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• pp.637-642
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• 2013

Because the implant is regarded as a common treatment. It is clinically important that systemic and local risk factor of threatening peri implant mucosa should be considered during the process. The most risk factors are detected in clinical diagnosis, but it might be difficult and not clear to recognize systemic or combined factors. This article reviews risk factors of peri-implantitis. Local factors are biomechanics, periodontal soft tissue characteristics, infected site and oral hygiene. Systemic factors are alcohol, smoking and genetic traits.

• Korean Journal of Social Welfare
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• v.67 no.2
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• pp.237-257
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• 2015

The purpose of this study is to analyze the effects of local community resident-participation factor on the local community resident-participation determinant and the formation of social capital. Accordingly, questionnaire method was used for 389 residents in A-dong that have participated in community building projects in Busan region to analyze their demographical factor & residential area factor and local community resident-participation factors of satisfaction of neighborhood environment, satisfaction of administrative support, local attachment and neighbor connectedness effects. The analysis results showed that first, the satisfaction of outside support and neighbor connectedness were found to be the main factors. Second, the satisfaction of outside support, local attachment and neighbor connectedness showed meaningful effects in the state where these factors were controlled. Third, the effects of each social capital sub-element were verified and the results showed that while trust and network had meaningful effects on satisfaction of outside support, local attachment and neighbor connectedness effects, norm of reciprocity showed meaningful effects on gender, house ownership status, local attachment and neighbor connectedness, thereby showing differences. Based on these study findings, implications and suggestions were presented.

• Journal of Smart Tourism
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• v.3 no.3
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• pp.29-40
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• 2023

This research aims to understand the role of online reviews in the local search context by examining the effects of reviews on the representation of tourism businesses on local search platforms (LSPs). By simulating tourists' local searches for restaurants on three LSPs, namely Google, Bing, and Yelp, this study examines how different ranking results are generated across the platforms and how online reviews contribute to the differences. The findings suggest that online reviews are incorporated into LSPs as ranking factors and, thus, affect tourists' decision-making by influencing the information search results in the local search context. As one of the earliest studies on local search, this study discusses how the existing knowledge about the role of online reviews in tourists' decision-making needs to be reevaluated in mobile and more dynamic environments, and offers practical implications for tourism businesses' search engine marketing.

• Journal of the Korean Association of Geographic Information Studies
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• v.1 no.2
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• pp.26-36
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• 1998

As the digitization of maps in Korea has been completed in 1998, local governments begin to apply digital maps for their administrative convenience. In applying GIS to local administration, there are some important aspects to be considered such as technical aspect, organizational aspect and data managerial aspect. Using surveys to local governments, the study examines the implementation factors such as leadership, GIS organizational settings, human and financial resources, and education programs which are related to the applications of GIS to local governments in Korea. As a conclusion, the study proposes that organizational and human factors be combined harmoniously with technical factors from the beginning stage of GIS installation for the successful implementation of GIS applications to local governments.

• Journal of Gastric Cancer
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• v.12 no.2
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• pp.88-98
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• 2012

Purpose: Local recurrence, due to residual tumor, may occur after endoscopic resection for early gastric cancer. The aims of this study are to evaluate the predictive factors for local recurrence, and suggest an appropriate follow-up biopsy strategy. Materials and Methods: We retrospectively reviewed 396 early gastric cancers from 372 consecutive patients, who underwent endoscopic resection between January 2002 and April 2008. Cumulative recurrence rates were determined by the Kaplan-Meier method, and Cox proportional hazard analysis was used to determine the risk factors for local recurrence. Results: Local recurrence at the endoscopic resection site was found in 17 cases, among the total 396 lesions, during a median follow-up period of 48 months. The 5-year cumulative local recurrence rate was 4.8%. Multivariate analyses determined that tumor involvement at the lateral resection margin [hazard ratio: 35.9; P<0.001], uncheckable lateral resection margin [hazard ratio: 16.8; P<0.001], uncheckable or involved deep resection margin [hazard ratio: 3.76; P=0.047], and piecemeal resection [hazard ratio: 3.95; P=0.007] were associated with local recurrence. If a lesion was positive for any of these risk factors, the 5-year cumulative recurrence rate was 27.0%, while local recurrence was not found in any lesion that lacked these risk factors. Most episodes of recurrence were found during the first or second follow-up endoscopic biopsy at the ulcer scar. Conclusions: Routine follow-up biopsies at the endoscopic resection site might be unnecessary in cases where an early gastric cancer lesion was endoscopically resected en bloc with tumor-free lateral and deep margins.

• Journal of Digital Convergence
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• v.17 no.1
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• pp.37-42
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• 2019

This study investigated the policies of return to farm & rural of the local government 's local communities. Through this, we intend to provide information for the successful establishment of the policies of the local village. The local economy is difficult due to the declining population. Therefore, it is also important as a way to increase the population. It is also important as a way to revitalize agriculture. The results of this study are as follows. The main factors are education, self-sufficiency, adaptation, funding, and consulting. In addition, the importance of these was highest in the self-supporting environment (28%). Followed by adaptation (21%) and funding (20%). Followed by consulting (17%) and education (15%). We can conclude that the factors that show a somewhat lower proportion are less important, but we can also conclude that the importance of the factors is high due to the high maturity of the factors. The importance analysis used AHP technique. The results of this study can be a guide for government policy.

• The Korean Journal of Health Service Management
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• v.12 no.1
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• pp.23-34
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• 2018

Objectives : This study developed and validated the local clinic Medical Doctor Role Stress Scale(MDRS). Methods : The interviews were conducted with 12 local clinic medical doctors to develop final preliminary questions. The scale was developed using statistical item analysis, exploratory and confirmatory factor analysis surveys with local clinic medical doctors in Seoul, Busan, Daejeon, and Gyeonggi province. Results : The MDRS developed in this study consisted of 14 items and three factors. The factors were role conflict, role ambiguity and role overload. The three factors explained 56.71% of the total variance, and the internal consistency of this scale was .90. The internal consistency for each factor was .81 ~ .90. Confirmatory factor analysis through a separate sampling met the fit criteria (CFI = .941, TLI = .927, RMSEA = .079, SRMR = .069). Conclusions : The results indicate that this scale is a reliable instrument for assessing local clinic medical doctor role stress.

• Journal of the Korean Data and Information Science Society
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• v.18 no.4
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• pp.903-913
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• 2007

The purpose of this study is to measure the factor of determination on satisfaction level of the Jeonju International Film Festival. A study is analysed through research that is consisted of satisfaction factor#s items of 32 local festival visitor to study factors of determination of local festival visitor#s satisfaction level. This research data extracted 6 factors, which are access and souvenir, food/lodging, information/service, event/pastime, and convenient facilities. In conclusion, the festival is likely to attract more tourists and make them satisfied if better content of the festival is provided. There, most of the tourists need to becoming cleared to be satisfied due to its values of culture recognition through various contents of the festival, fun factors, food/lodging factors, and various programs.

• Journal of Digital Convergence
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• v.17 no.11
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• pp.53-59
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• 2019

The purpose of this study is to verify what effects regional landmark cognitive factors have on tourist satisfaction and how the effect relationship between regional landmark cognitive factors and tourist satisfaction change due to perception differences between local residents and tourists and to present implications. Analysis results show that landmark cognitive factors could be categorized into the single factors of symbolism, historicity, and tourist satisfaction. Landmark cognitive factors had significant effects on tourist satisfaction and differences occurred in that effect relationship according to local residents and tourists. Therefore, when tourism products are developed through landmarks, if the opinions of local residents are excessively reflected, this can bring about outcomes that actually disregard tourists, so it is important to appropriately reflect various opinions.