• Journal of the Korean Institute of Landscape Architecture
• /
• v.23 no.3
• /
• pp.69-79
• /
• 1995

The purpose of this study is to clarify the classification and the spatial form of the named coastal landforms which are collected from the specialized magazine for fishing as a collective representative. The costal landform, viewing from the fishing activity, is divided into 9 types which are Yo(sunken rock), Kaeppai(rock-ribbed coast), Jolbyeok(cliff), Koppuri(spite), Chagalmadang(shringle beach), Kanchulam(intermitent rock), Mulgol(valley sea), Kaeppul(tidal flat), Sajang(sandy coast). And the characterstics of the 9types of landform were analyzed. The results of this study will contribute to establish teory on conservation and rehabilitation of costal landscape.

• Proceedings of the KSRS Conference
• /
• 2003.11a
• /
• pp.444-446
• /
• 2003

Mogao Grottos are located at the eastern foot of the Mingsha Mountain, 25km southeast of Dunhuang City. The caves were excavated into the cliff on the west bank of the Daquan River. The wall paintings in the caves are subject to the severe deterioration generated by recrystallization of salt. It relates with the movement of water/moisture in rock formation. Through the satellite image analysis and geological survey it has been clarified that the movement of ground water is governed by the fault system. The geographical nature is specified by the aggressive tectonic movement from the south.

• 제어로봇시스템학회:학술대회논문집
• /
• 2001.10a
• /
• pp.35.5-35
• /
• 2001

The purpose of the study is to develop a synthetic method for generating arbitrary number of not the same but similar texture images. The method includes processes to extract basic shape elements from texture images originating in actual objects, to select them to reappear the image features and to arrange them in a image plane. The authors have already proposed the shape-pass type filter bank assuming that the sensual impression mainly depends on minute shapes existing in the texture images. By use of nine basic shape elements, namely black/white-roof, black/white-line, black/white-snake, black/white-pepper, and cliff, natural texture images originating in actual objects have been characterized by feature vectors in a nine dimensional space. To generate arbitrary number of similar texture images, minute shape pieces ...

• Computers and Concrete
• /
• v.8 no.4
• /
• pp.473-489
• /
• 2011

In designing a flexural member for structural safety, both the flexural strength and ductility have to be considered. For this purpose, the flexural ductility of reinforced concrete sections has been studied quite extensively. As there have been relatively few studies on the flexural ductility of prestressed concrete sections, it is not well understood how various structural parameters affect the flexural ductility. In the present study, the full-range flexural responses of reinforced and prestressed concrete sections are analyzed taking into account the nonlinearity and stress-path dependence of constitutive materials. From the numerical results, the effects of steel content, yield strength and degree of prestressing on the yield curvature and ultimate curvature are evaluated. It is found that whilst the concept of flexural ductility in terms of the ductility factor works well for reinforced sections, it can be misleading when applied to prestressed concrete sections. For prestressed concrete sections, the concept of flexural deformability in terms of ultimate curvature times overall depth of section may be more appropriate.

• Journal of the Korea Society of Computer and Information
• /
• v.23 no.11
• /
• pp.9-15
• /
• 2018

The Ministry of National Defense announced 'Defense Reform 2.0' that aims to strengthen the country's security for decrease of regional uncertainties, growing requirements for advanced technologies, and a need for more efficiency in the Republic of Korea(RoK) Armed Forces this year. It said RoK Armed Forces have to change efficiently in preparation for rapid decline in military service resources as demographic cliff turning into reality, and the rapid evolution of the "battlefield environment" caused by developments in military science and technologies. RoK Navy combat Management System(CMS) made by domestic proprietary technology since 2000s and development centered on Agency for Defense Development require design changes for added requirements. So in this paper, I propose method of design a low cost and high efficiency navy CMS architecture based on high performance server and virtualization technology. And I create a test environment for analysis performance and compare the performance of proposed navy CMS and existing navy CMS.

• Journal of The Geomorphological Association of Korea
• /
• v.25 no.4
• /
• pp.117-129
• /
• 2018

Dongmag beach area contains diverse geological and geomorphological outcrops which can be used for geotourism purposes. They are as follows; headland with granodiorite with plenty of enclaves and sandy beach, which is fed from Manisan with well-developed sheeting joints composed of granite and granodiorite. Weathered material from the hillside feedsthe one and only sandy beach in Ganghwado Island. Weathered outcrop at the hillside behind beach exposes typical spherical weathering also. Bunori Dondae Fort which was built on top of sea cliff with granodiorite has plenty of history and cultural values commands an extraordinary view of tidal flats and coastal landforms. This geosite with high geodiversity can be used for interpreters who provide balanced views of nature conservation.

• Journal of architectural history
• /
• v.31 no.6
• /
• pp.33-45
• /
• 2022

The tombs at the royal level of the Western Han dynasties belong to the five kingdoms of Chu, Liang, Lu, Zhongshan and Changyi, representing the new forms and ideas of the tomb architecture. Taking Shanchuwang Tomb in BeidongShan, Xuzhou as an example, this paper analyzes the architectural structure and symbolic significance of the tomb, and tries to discuss the concept of burial reflected in it.The analysis of the structure of the main body of the tomb reveals the basic logic of the tomb imitating the palace on the ground, and the definition of the nature of the annex reflects its transcendence over the general form of the tomb.

• International Journal of Advanced Culture Technology
• /
• v.11 no.2
• /
• pp.186-190
• /
• 2023

There are unimaginable possibilities ahead of us. As a result, it is difficult to predict the future, but the prediction itself is not meaningless. This is because it can have the flexibility to cope with contingencies by predicting various possibilities. This study was conducted to explore extreme events (X-event) in the Korean population sector. To this end, in-depth interviews were conducted with experts from the Korea Army Research Center for Future & Innovation and the Army College, and based on this, significant research results were derived that population problems such as population decline and aging can affect various fields such as economy. With this study, we hope that discussions on extreme events (X-event) that can occur in our society will be further activated.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2020.05a
• /
• pp.512-515
• /
• 2020

학습 속도가 느린 강화학습을 범용적으로 활용할 수 있도록 연구가 활발하게 이루어지고 있다. 사전 지식을 제공해서 학습 속도를 높일 수 있지만, 잘못된 사전 지식을 제공했을 위험이 존재한다. 본 연구는 불확실하거나 잘못된 사전 지식이 학습에 어떤 영향을 미치는지 살펴본다. OpenAI Gym 라이브러리를 이용해서 만든 Gamble 환경, Cliff 환경, 그리고 Maze 환경에서 실험을 진행했다. 그 결과 사전 지식을 통해 에이전트의 행동에 경향성을 부여할 수 있다는 것을 확인했다. 또한, 경로탐색에 있어서 잘못된 사전 지식이 얼마나 학습을 방해하는지 알아보았다.

• Journal of the Korean earth science society
• /
• v.21 no.3
• /
• pp.276-286
• /
• 2000

A 2.3 m-long core obtained from Marian Cove, King George Island in the South Shetland Islands, West Antarctica shows clues to the glaciomarine sedimentation during the Holocene. The lower part below 115cm-deep of the core is predominated by coarser material such as diamictons compared with the higher part above 105cm dominated by finer material (rhythmite and massive muds). Based on the granulometric features the coarse materials are generally supposed to be glacially-driven and basal tills, whereas the fine materials appear to originate from various sources such as meltwater-supplied, glacially-supplied, wind-blown, and organic origins. However, the presence of erratic coarse particles in the finer materials suggests the ice-rafted origin of the relevant materials. The lower part below 105cm-deep of the core was characterized by lower TN, TC, and TOC contents, and by higher TS and CaCO$_3$ contents compared with its upper part. No significant changes in C/N ratio were shown throughout the core. The ice cliff along the east side of Marian Cove seemed to locate to the west by 1.6km at 8,300 years B. P. on the basis of the repetitive occurrence of rhythmite and diamicton. Since the retreat of ice cliff in 7,970${\pm}$70 years B. P. the sediments of Marian Cove were dominated by fine materials and ice-rafted materials. The abrupt increase of coarse materials in 175cm-4 deep seems to result from supply of coarse materials due to earthquake or other drastic phenomena.