• Journal of The Geomorphological Association of Korea
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• v.15 no.2
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• pp.95-109
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• 2008

This work is to describe the geomorphological features of Dongcheon-gugok in the Eastern Part of Gyeongsang Province, and attempt to develop a basic data for traditional natural heritage. The bedrocks of the study area is typically sedimentary rocks of Gyeongsang Series. Dongcheon-gugok in the study area is almost distributed in the valley of Taebaek Mountain range in Gyeongbuk Province. These valleys almost belong to tributaries of Nakdong River, and are characterized by narrow meandering valley in the moutainous region. Dongcheon-gugok in the study area is located in these valleys with steep slopes or rocky cliffs. And there are pools, point-bar with sands and gravels, riffles, etc in the river valley. Ancesters named these landscape with Jeolbyuk(rocky cliff), Bong(peak), Dam(pool), Tan(ripple), Cheonsa(point-bar), Pok(waterfall), Dae(hill), etc.

• Journal of Korean Society of Archives and Records Management
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• v.19 no.4
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• pp.35-61
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• 2019

The recent demographic cliff caused the schooling population to steadily decline and the number of college admissions to sharply drop, which led to the prediction of the Ministry of Education wherein 38 universities in Korea will be closed within the next 3 years. As such, the legal, administrative, historical, and informational values of university records shed light on the importance of the follow-up process and management of closed university records. Although closed university records need to be systematically managed according to legal procedures similar to other public records, there is no practical and clear legal standard for the management of such records at present. Moreover, management standards considering the characteristics of (closed) university records and individual universities' situations and specificity have been insufficient. This study, therefore, examines the ambiguous standards for closed university records management and analyzed relevant problems. Furthermore, an integrated management system is suggested as a way to improve the records management of closed universities.

• Journal of Family Resource Management and Policy Review
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• v.25 no.3
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• pp.31-45
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• 2021

Despite efforts to expand public care services as social demands increase, the problem of the after-school self-care of elementary school students who were in the situation of care cliff remains. Thus, this study focused on community-based childcare to solve the issue of school-age childcare in Korea. The purpose of this study was to explore the experience of community-based childcare of participants who had school-aged children who lived in Seoul and GyeongGi province (Korea). Focus group interviews were conducted with ten married working mothers among clients of a community-based childcare provider that has been operating for more than five years. Based on the findings of this study, it is clear that community-based childcare is a useful welfare resource. In addition, the results of this study can be used as data for developing policies and programs for school-age childcare or the after-school self-care of elementary school students. Furthermore, it may broaden the horizons of research related to community-based childcare.

• The Journal of the Korea Contents Association
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• v.19 no.7
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• pp.149-165
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• 2019

The purpose of this study is to conduct an in-depth interview on 5 middle aged women who have attempted suicide in the past and to explore their suicide attempts and the vivid empirical value of life after the attempt. The collected data were analyzed using Giorgi's phenomenological approach. The data analysis resulted in 21 sub categories and 7 essential categories. Study participants experienced an-'selected death at the end of a cliff', 'standing on the border of life and death', 'life became clear after escaping delusion', 'working toward life once again', 're-evaluating their past life and discovering new possibilities', 'experiencing the vividness of life here', 'spiritual growth and deeper insight'. Such results offer a discussion on existence toward self-completion, and hold significance in that it increased our in depth understanding and recognition beyond the narrow perceptions of individuals who attempt suicide.

• Biomolecules & Therapeutics
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• v.27 no.4
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• pp.349-356
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• 2019

Behavioral analysis in mice provided important contributions in helping understand and treat numerous neurobehavioral and neuropsychiatric disorders. The behavioral performance of animals and humans is widely different among individuals but the neurobehavioral mechanism of the innate difference is seldom investigated. Many neurologic conditions share comorbid symptoms that may have common pathophysiology and therapeutic strategy. The forced swim test (FST) has been commonly used to evaluate the "antidepressant" properties of drugs yet the individual difference analysis of this test was left scantly investigated along with the possible connection among other behavioral domains. This study conducted an FST-screening in outbred CD-1 male mice and segregated them into three groups: high performers (HP) or the active swimmers, middle performers (MP), and low performers (LP) or floaters. After which, a series of behavioral experiments were performed to measure their behavioral responses in the open field, elevated plus maze, Y maze, three-chamber social assay, novel object recognition, delay discounting task, and cliff avoidance reaction. The behavioral tests battery revealed that the three groups displayed seemingly correlated differences in locomotor activity and novel object recognition but not in other behaviors. This study suggests that the HP group in FST has higher locomotor activity and novelty-seeking tendencies compared to the other groups. These results may have important implications in creating behavior database in animal models that could be used for predicting interconnections of various behavioral domains, which eventually helps to understand the neurobiological mechanism controlling the behaviors in individual subjects.

• Journal of The Geomorphological Association of Korea
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• v.25 no.4
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• pp.63-75
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• 2018

The lower marine terrace 1 and 2 surfaces distributed between Ulsan and Pohang coast in the southeastern coast of the Korean penninsula have been correlated with MIS 5e and 5a (or 5c) by amino acid dates, 14C dates, wide-spread tephra correlation and pollen analysis respectively. In this study, to test the reliability of the OSL method for the estimation of the numerical burial age of marine sediment deposits, we analyzed the samples from the marine terraces which have been known as typical marine terraces formed during MIS 5e and MIS 5a in the above-mentioned coast. The burial ages of the marine deposit of the lower marine terrace 1 and 2, with paleoshoreline altitudes of 18m to 19m and 10m to 11m respectively, both showed about the same age of 60 ka BP. The lower marine terraces 1 and 2, however, were divided into two terrace surfaces by a clear terrace cliff. Besides, the OSL dates of the lower and upper parts of the lower marine terrace 2 of the Bonggil coast showed the reversed burial ages. In the lower marine terrace 1 of the Sanhari coast, almost the same burial ages were derived from both the lower part (marine rounded gravel layer) and the upper part (terrestrial angular gravel layer) of the terrace deposit. Therefore, at the present time, judging from only the OSL dates measured in this study, it could be argued that the OSL method is not the best for the estimation of forming periods of the lower marine terraces 1 and 2 and their classification.

• Journal of Advanced Navigation Technology
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• v.26 no.5
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• pp.312-318
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• 2022

Currently, the Republic of Korea is facing the problem of a decrease in military service resources due to the demographic cliff, and is pursuing military restructuring and changes in the military force structure in order to respond to this. In this situation, the Army is pushing forward the deployment of a drone-bot combat system that will lead the future battlefield. The battlefield of the future will be changed into an integrated battlefield concept that combines command and control, surveillance and reconnaissance, and precision strike. According to these changes, unmanned combat system, including dronebots, will be widely applied to combat situations that are high risk and difficult for humans to perform in actual combat. In this paper, as one of the countermeasures to these changes, autonomous behavior software with a BDI architecture-based decision-making system was developed. The autonomous behavior software applied a framework structure to improve applicability to multiple models. Its function was verified in a PC-based environment by assuming that the target UAV is a battalion-level surveillance and reconnaissance UAV.

• The Journal of the Convergence on Culture Technology
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• v.9 no.2
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• pp.207-213
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• 2023

Korea is facing a population cliff and a decline in the fertility rate, and the competition rate for recruiting officers in our military is rapidly decreasing every year. This situation is a serious problem in terms of national security and requires efforts to obtain excellent manpower. To this end, it is necessary to understand their occupational values through consideration of the MZ generation, which is the main recruitment target of the military, and to find diagnosis and solutions for each problem by closely analyzing the military's internal and external environment based on their understanding of soldiers as a job. Therefore, we diagnose the current situation in consideration of military specificity, examine the occupational values of the MZ generation, which is a resource for military officers recruitment. Since the subject of military officer acquisition is the MZ generation, efforts are needed to focus on occupational values of MZ generations.

• Journal of The Geomorphological Association of Korea
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• v.18 no.4
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• pp.247-259
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• 2011

This research aimed to analyse geomorphic resources of Mt. palgong(in Daegu city and Gyeongbuk province) through some field surveys, and then to clarify geomorphic features. The main results are as follows. 1) The geological boundary of the south slope(granite) is more clear than one of the north slope(granite bedrock and metamorphic sedimentary rock). Small basins are along with fault line between granite bedrock and metamorphic sedimentary rock. 2) It is estimated that relatively big valleys on the north slope are due to local climate, geomorphic and geological features. 3) Tor, sheeting joint, gutter are well developed both on the south slope and on the north slope, however the development of polygonal cracking and boulder stream are more dominant on the south slope; river cliff, pool, waterfall are more dominant on the north slope with valleys that well developed. 4) Scenic geomorphic landscapes are mainly developed in Dongsan valley and Chisan valley on the north slope. 5) There are many interesting geomorphic resources in the viewpoint of storytelling in Mt. Palgong. So the specific design to utilize such resources is required

• Journal of The Geomorphological Association of Korea
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• v.27 no.4
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• pp.53-70
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• 2020

Silgyeong sansuhwa (Realistic landscape paintings) are drawn in Korea since 17th century. It has characteristics of more realistic description of landscape than painting from previous periods. Kim Hong Do's 'Haedong Myeongsan docheop (The album of paintings of famous mountains in Korea)' has been recognized as fine example of realistic description of geomorphic landscapes. Kim Hong Do and Kim Eung hwan did official travel to Gwandong and Geumgangsan area by order of King Jeongjo in 1788. As a result of that travel they draw about 100 piece of landscape painting. About 60 pieces of the paintings are still remaining. These are open to public by Korea National Museum in 1996. 14 pieces of painting, Daegwanryeong and Gangneung, Gyeongpo-dae, Hohae-jeong, Gahak-jeong, Cheonggan-jeong, Mun-am, Mangyang-jeong, Wolsong-jeong, Neungpa-dae, Naksan-sa, Mureung-gye, Gyejo-gul, and Hyeonjong-am, are analysed in this study. Coastal depositional landforms, like lagoon, sand beach and spit or barriers, erosional forms, like sea stack, sea cliff and sea cave, depicted in the paintings are analysed. In addition, structural landforms, colluvial landform and bedrock incision form by the running water in mountain area were analysed and weathered forms of granite and excursion to karst cave also discussed. It is found that sea arch in the printing destroyed since 1788, though exact position and reason is still unknown. There are strong need for discovery and identification of geomorphic landscape resources, for applied geomorphological studies and for prepare educational materials for non-face-to-face education. It also be emphasized that it can be used of the course work materials for future education using augmented reality and virtual reality technology.