• 디지털산업정보학회논문지
• /
• 제6권4호
• /
• pp.307-317
• /
• 2010

The majority of financial and general business organizations have had individual damage from hacking, worms, viruses, cyber attacks, internet fraud, technology and information leaks due to criminal damage. Therefore privacy has become an important issue in the community. This paper examines various elements of the information security management system and discuss about Information Security Management System Models by using the analysis of the financial statue and its level of information security assessment. These analyses were based on the Information Security Management System (ISMS) of Korea Information Security Agency, British's ISO27001, GMITS, ISO/IEC 17799/2005, and COBIT's information security architecture. This model will allow users to manage and secure information safely. Therefore, it is recommended for companies to use the security management plan to improve the companies' financial and information security and to prevent from any risk of exposing the companies' information.

• Journal of Power Electronics
• /
• 제1권2호
• /
• pp.133-144
• /
• 2001

Power electronics plays an important role in providing an interface between fuel cells and loads. Furthermore, power electronic converters ensure that the power is reliably and efficiently delivered to the load in the required DC or AC form. In this paper, major types of fuel cells are presented. Basic structures, operating principles, and different applications of fuel cells are described. In addition, current status and future trends in the areas of power electronics for fuel cells are described. In addition, current statue and future trends in the areas of power electronics for fuel cell applications are explained. A review of fuel cell power electronic system topologies and basic requirements are given as well.

• 한국진공학회:학술대회논문집
• /
• 한국진공학회 1999년도 제17회 학술발표회 논문개요집
• /
• pp.82-82
• /
• 1999

Ferroelectric materials are characterized by the existence of a spontaneous remnant polarization that can be switched between two stable states by an applied field. This phenomenon is known as ferroelectricity. The ferroelectricity can be utilized for nonvolatile memory application. Up to now 256K FRAM was successfully fabricated and sold in the memory market. This paper will briefly review the current statue of ferroelectric random access memory (FRAM) focusing on recent developments. In addition, the future prospects of FRAM will be addressed.

• 한국실내디자인학회논문집
• /
• 제32호
• /
• pp.21-27
• /
• 2002

Tongdo temple is one of the representative temples that the Buddhistic outlook on the universe and the world is well expressed. This article will discuss the expressive and symbolic meaning that Darma talk on vulture peak signifies by contemplating the road leading from Ilju gate to Buddha's hall in terms of Karam arrangement of the temple and the unique plane delineation of Bulee gate. It seems that Darma talk on vulture peak is related to the reason why there is no Buddha statue in Buddha's hall and why the name of the mountain has been changed considering the resemblance of its shape to India's Youngchook mountain. The present study will take this relation into account and will show the religious faith and architectural meaning with respect to this relationship.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2019년도 춘계학술발표대회
• /
• pp.666-667
• /
• 2019

우리 주위에는 많은 '평화의 소녀상'이 있지만, 소녀상의 위치나 역사적 의미 같은, 보다 자세한 정보를 얻기는 직접 찾아보지 않으면 얻기 어려운 것이 현실이다. 이에 본 연구에서는 증강현실(Augmented Reality)을 이용하여, 주변 소녀상의 위치 및 시각적 경로 안내뿐 아니라 웹을 이용한 각 소녀상 별 피드(Feed)를 통해 다양한 역사적 정보를 제공 및 공유하고자 한다.

• ETRI Journal
• /
• 제41권1호
• /
• pp.52-60
• /
• 2019

A fast hologram calculation approach is proposed to reduce computational load by avoiding the recalculation of redundancy information. In the proposed method, the hologram is divided into several sub-holograms that record and reconstruct different views of 3D objects. The sub-hologram is generated from its adjacent calculated sub-holograms by only adding the holograms of difference images between an adjacent pair of views. The repetitive information of two adjacent views is called angular redundancy. Therefore, avoiding the recalculation of this angular redundancy can considerably reduce the computational load. Experimental results confirm that the proposed method can reduce the computational time for the statue head, rabbits, and car to 4.73%, 6.67%, and 10.4%, respectively, for uniform intensity, and to 56.34%, 57.9%, and 66.24%, respectively, for 256 levels intensity, when compared to conventional methods.

• 한국공간구조학회논문집
• /
• 제18권4호
• /
• pp.23-30
• /
• 2018

The purpose of this study is to evaluate the structural safety of cultural altar since its bearing capacity has been questioned due to weathering damages and sectional defections. This evaluation process consists two stages; which the first is field investigation and the second is structural modeling and analysis. Based on field investigation, all of the structural members supporting the altar were carefully examined and all the findings were accounted for the development of the structural modeling using the Midas computer program. Using a 3D scanner, the weight of the Buddha statue was applied to the structural modeling. Then, according to the allowable stress design method of KBC2016, the structural safety was evaluated. Based on this result, replacements of several structural members were recommended to increase the structural safety and value of cultural property.

• 건축역사연구
• /
• 제32권4호
• /
• pp.7-18
• /
• 2023

Recognizing that the debate on the original form of the Seokguram Grotto is closely related to the mythologization of the Seokguram Grotto, which is far from factual understanding, this paper is prepared to restore the Seokguram Grotto based on scientific facts. To this end, we will first analyze its active meaning and fiction from three directions: the founding legend, the rediscovery story, and the concept and discourse of the Line of sight for Buddha statue (對佛像視準線), which have contributed to the mythologization of the Seokguram Grotto. The original restoration of the Seokguram Grotto should be based on a scientific understanding of the Seokguram space. However, past debates and restoration attempts have been based on imagination and not on scientific knowledge. Therefore, Chapter 3 attempts a scientific analysis of the light environment of thr Seokguram Grotto and critically examines the existing errors and realistic mythological images to correct the public's spatial perception of Seokguram's architecture and to propose a rational restoration of Seokguram's architectural space.

• 대한수학회보
• /
• 제60권3호
• /
• pp.659-675
• /
• 2023

Let K be an algebraically closed field of characteristic 0 and let f be a non-fibered planar quadratic polynomial map of topological degree 2 defined over K. We assume further that the meromorphic extension of f on the projective plane has the unique indeterminacy point. We define the critical pod of f where f sends a critical point to another critical point. By observing the behavior of f at the critical pod, we can determine a good conjugate of f which shows its statue in GIT sense.

• 헤리티지:역사와 과학
• /
• 제53권3호
• /
• pp.224-243
• /
• 2020

괴산 원풍리 마애불병좌상은 보물 제97호로 지정되어 있는 초대형 마애불이다. 이불병좌상은 발해에서 동경용원부를 중심으로 성행하였던 불상이나 신라나 고려에서는 조성 사례가 매우 희박하다. 본문에서는 원풍리 마애이불병좌상의 조성 시기를 10세기 후반기인 광종 집권기로 파악할 수 있었다. 원풍리 마애이불병좌상이 소백산맥을 넘는 주요 교통로 입구에 조성된 이유는 진천과 청주 세력과 관련이 있는 것으로 추정하였다. 진천과 청주는 광종에 앞서 재위하였던 고려 2대, 3대 왕인 혜종과 정종의 처가 세력들의 세거지였다. 이들은 광종이 가장 경계했던 호족들이었다. 마애이불병 좌상의 제작에는 중앙 정부의 후원 하에 충주와 문경 지역 장인들이 참여한 것으로 파악하였다. 문경 지역 장인들의 경우 발해 유민들일 가능성이 높은 것으로 추정하였다. 원풍리 마애이불병좌상의 제작에 발해 유민들이 참여하였을 가능성은 마애불이 발해에서 유행하였던 이불병좌상인 점, 협시보살 보관의 특징이 발해적 요소가 확인되는 점을 들 수 있다. 이와 함께 각연사 비로자나불좌상 광배 후면의 불패형 불탑이 발해적 요소라는 점을 근거로 들었다. 또한 고려시대 발해 왕실 후예로 추정되는 대씨는 조선시대에 들어와 대개 태씨로 기록되어 있으며 태씨들의 집단 거주지가 문경이라는 점을 통해 발해 유민들이 고려초 문경에 정착했을 가능성을 제시하였다. 원풍리 마애이불병좌상은 소백산맥을 넘어 경상도 북부와 충청도 중부 지역을 왕래하는 많은 사람들에게 고려 왕실의 권위를 보여주는 불상이라 할 수 있다. 그 권위는 한 때 광종에 대항하여 권력 투쟁을 벌였던 진천과 청주의 호족 세력들을 직접 겨냥한 것으로 보인다. 이와 더불어 거대한 이불병좌상을 주요 교통로에 조성한 이유는 후삼국 시기 이후 고려에 내투한 수만의 발해 사람들이 광종을 지지하고 있음을 보여주는 의미 또한 있었던 것으로 판단된다. 괴산 원풍리 마애이불병좌상은 10세기 후반 경 광종대의 시대적 상황과 조각사의 흐름이 잘 반영되어 있는 의미 있는 불상이라 할 수 있다.