• Journal of the Korean Society for Library and Information Science
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• v.53 no.3
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• pp.345-372
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• 2019

This study investigated the total number of works at the Hong Jik-pil(洪直弼)'s manuscript collection "Maesanjip(梅山集)" (total vol.224) in the National Library of Korea, and then identified the list and characteristics of works written by other authors in the "Maesanjip". The total number of works of the manuscript "Maesanjip" is 3,017poems and 10,090proses, except for 260works created by others. The number of works by genre in the "Maesanjip" is as follows: 3,017 poems(詩), 52 appeals(疏啓), 8,290 letters(書), 257 letters for encouragement(書贈), 1,491 epitaphs(墓文). And the 260works by others are listed in vol.111 147 171 205 218~220 222~224 and these works were used as a reference for the compilation of "Maesanjip". Through this study, it was shown that when analyzing the works and studying the compilation of manuscript "Maesanjip", it should except for the 260 works by others from the book.

• Korean Journal of Plant Resources
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• v.32 no.1
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• pp.72-85
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• 2019

This study was conducted to investigate the vascular flora distributed in the Gatbawi District of Palgongsan Natural Park and to provide basic data for the conservation and management of the natural resources. The results of the investigation of the flora with the Gatbawi District from April 2015 through October 2017 are as follows. As a result of drawing up a list of flora based on the specimens of evidence, as for the entire flora, 238 taxa were identified in total: 75 families, 167 genera, 214 species, 3 subspecies, 18 variants and 3 varieties. Also, one species of rare plant, 20 particular floristic species and a total of 18 species of naturalized plant were found.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.614-620
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• 2021

Jeju has many out-of-town cultural areas owing to its low accessibility to concert halls. Based on data from Jeju in 2019, this study selected possible sites for concert halls and examined the location status of existing concert halls in Jeju by utilizing GIS analysis. As a result, directions on location selection are proposed for the western and eastern parts of Jeju, where accessibility to concert halls is relatively difficult. Considering the theory, prior research, and the regional characteristics of Jeju, the directions for location selection exclude residential areas and areas with little accessibility. They also list good points for accessibility within areas that have little of it, that are distant from administrative dong areas in Jeju-si and Seogwipo-si, that have friendly natural scenery, and that already have accessible public transportation. Accordingly, four places were proposed as possible areas for construction of a concert hall in 2020. This study is expected to contribute to cultural marketing that makes the Jeju area a Cultural Island.

• Korean Journal of Environmental Biology
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• v.39 no.2
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• pp.169-183
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• 2021

This study was carried out to investigate the flora of the Hanbando wetland (Yeongwol-gun, Gangwon-do) from April 2019 to May 2020. Vascular plants were grouped into 508 taxa, comprising 93 families, 309 genera, 456 species, 10 subspecies, 37 varieties, and 5 forms. Among the investigated 508 taxa, 2 endangered species, 8 rare plants, and 8 endemic plants were identified. The specific plants by floristic region were grouped into 71 taxa including, 3 taxa of grade V, 10 taxa of grade IV, 15 taxa of grade III, 17 taxa of grade II, and 26 taxa of grade I. Naturalized and ecosystem disturbing plants were grouped into 57 taxa and 5 taxa, respectively. The percentage of naturalized plants species and urbanization index were estimated to be 11.2% and 17.8%, respectively. This study provides important basic information for the efficient management of Hanbando wetland, which possess a high conservation value since it is forms part of the list of Ramsar wetlands.

• Journal of Korean Society of Archives and Records Management
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• v.22 no.1
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• pp.43-59
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• 2022

Electronic public records are classified simultaneously as production, a preservation period is granted, and after a certain period, they are transferred to an archive and preserved. This study intends to find a way to improve the efficiency in classifying transferred records and maintain consistent standards. To this end, the current record classification work process carried out by the National Archives of Korea was analyzed, and problems were identified. As a way to minimize the manual work of record classification by converging the required improvement, the process of identifying outlier candidates based on a list consisting of classified information of the transferred records was proposed and systemized. Furthermore, the proposed outlier discrimination process was applied to the actual records transferred to the National Archives of Korea. The results were standardized and constructed as a training data format that can be used for machine learning in the future.

• Ecology and Resilient Infrastructure
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• v.9 no.4
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• pp.269-281
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• 2022

The prediction of changes regarding the distribution of vegetation and plant species according to climate changes is important for ecosystem management. In this study, we attempted to develop an assessment method to evaluate the possibility of the potential distribution of warm-temperate woody plant species of East Asia in Korea. To begin with, a list of warm-temperate woody plants distributed in China and Japan, but not in Korea, was prepared, and a database consisting their global distribution and bioclimatic variables was constructed. In addition, the warm-temperate vegetation zone in Korea was delineated using the coldness index and relevant bioclimatic data were collected. After the exclusion of multicollinearity among bioclimatic variables using correlation analysis, mean temperature of the coldest quarter, mean temperature diurnal range, and annual precipitation were selected as the major variables that influence the distribution of warm-temperate plants. A multivariate environment similarity surfaces (MESS) analysis was conducted to calculate the similarity scores between the distribution of these three bioclimatic variables in the global distribution sites of the East Asian warm-temperate woody plants and the Korean warm-temperate vegetation zone. Finally, using stepwise variable-selection regression, the mean temperature of the coldest quarter and annual precipitation were selected as the main bioclimatic variables that affect the MESS similarity index. The mean temperature of the coldest quarter accounted for 88% of the total variance. For a total of 319 East Asian warm-temperate woody plant species, the possibility of their potential distribution in Korea was evaluated by applying the constructed multivariate regression model that calculates the MESS similarity index.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.15 no.4
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• pp.283-290
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• 2022

In this study, an IoT inspection system that can be linked with a server was developed using a gas timer and ESP-01 Wi-Fi module installed on a gas valve in the home. The server environment of the gas leak IoT inspection system was installed with APM (Apache, PHP, MySQL) to collect gas pressure data by generation so that leakage checks could be performed. In order to control the gas leak IoT inspection system, the app inventory was used to manage the gas leak check value in real time. In addition, user convenience has been enhanced so that membership management, WiFi settings, and leakage check values can be checked through mobile apps. In order to manage subscribers by region, the user list was checked by logging in in in the administrator mode so that the information on whether or not the leak test was conducted and the results could be provided. In addition, when the user presses the gas leak check button, the pressure is automatically checked, and the measured value is stored in the server, and when a gas leak occurs, the leakage check is performed after alarm and repair so that it can be used if normal. In addition, in order to prevent overlapping membership, membership management can be performed based on MAC addresses.

• Journal of Korean Neurosurgical Society
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• v.65 no.2
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• pp.315-324
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• 2022

Objective : The aim of this study was to verify the equivalence and effectiveness of the tablet-administered Korean Repeatable Battery for the Assessment of Neuropsychological Status (K-RBANS) for the prevention and early detection of dementia. Methods : Data from 88 psychiatry and neurology patient samples were examined to evaluate the equivalence between tablet and paper administrations of the K-RBANS using a non-randomly equivalent group design. We calculated the prediction scores of the tablet-administered K-RBANS based on demographics and covariate-test scores for focal tests using norm samples and tested format effects. In addition, we compared the receiver operating characteristic curves to confirm the effectiveness of the K-RBANS for preventing and detecting dementia. Results : In the analysis of raw scores, line orientation showed a significant difference (t=-2.94, p<0.001), and subtests showed small to large effect sizes (0.04-0.86) between paper- and tablet-administered K-RBANS. To investigate the format effect, we compared the predicted scaled scores of the tablet sample to the scaled scores of the norm sample. Consequently, a small effect size (d≤0.20) was observed in most of the subtests, except word list and story recall, which showed a medium effect size (d=0.21), while picture naming and subtests of delayed memory showed significant differences in the one-sample t-test. In addition, the area under the curve of the total scale index (TSI) (0.827; 95% confidence interval, 0.738-0.916) was higher than that of the five indices, ranging from 0.688 to 0.820. The sensitivity and specificity of TSI were 80% and 76%, respectively. Conclusion : The overall results of this study suggest that the tablet-administered K-RBANS showed significant equivalence to the norm sample, although some subtests showed format effects, and it may be used as a valid tool for the brief screening of patients with neuropsychological disorders in Korea.

• Korean Journal of Plant Resources
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• v.35 no.4
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• pp.515-540
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• 2022

The ultramafic serpentine area, the small size of 3 km², remains in Andong, South Korea. We researched the ecological flora and its structure through the 12 times field investigations from 2013 till 2018. A total of 527 taxa including the previously recorded species-list was analyzed. Among them, 331 taxa were filed up as a real flora of the serpentine area. On the vegetation land-cover map describing a characteristic aspect of species distribution, a matrix of the sparse forest by Pinus densiflora and the grassland patches were the main landscape. The study area was acknowledged as a home for the ethnobotanical species and grassland components, and clearly distinctive from the non-serpentine area. The original habitat was too deteriorated by introducing the non-site soils and exotic plants. Conclusionally a designation of a protected area and the long-term ecological monitoring were requested.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.43 no.1
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• pp.139-147
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• 2023

As heavy precipitation rates have increased due to climate change, the risk of landslides has also become greater. Studies in the field of disaster risk assessment predominantly focus on evaluating intrinsic importance represented by the use or role of facilities. This work, however, focused on evaluating risks according to the external conditions of facilities, which were presented via debris flow simulation. A random walk model (RWM) was partially improved and used for the debris flow simulation. The existing RWM algorithm contained the problem of the simulation results being overly concentrated on the maximum slope line. To improve the model, the center cell height was adjusted and the inertia application method was modified. Facility information was collected from a digital topographic map layer. The risk level of each object was evaluated by combining the simulation result and the digital topographic map layer. A risk assessment technique suitable for the polygon and polyline layers was applied, respectively. Finally, by combining the evaluated risk with the attribute table of the layer, a system was prepared that could create a list of objects expected to be damaged, derive various statistics, and express the risk of each facility on a map. In short, we used an easy-to-understand simulation algorithm and proposed a technique to express detailed risk information on a map. This work will aid in the user-friendly development of a debris flow risk assessment system.