• 정보처리학회논문지C
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• 제17C권5호
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• pp.391-398
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• 2010

대부분의 디지털 포렌식 관련 도구들은 저장매체의 할당된 영역에 존재하는 파일을 분석하는데 초점을 맞추고 있기 때문에 용의자가 의도적으로 삭제하거나 이전에 사용되었던 파일들을 복구하는 기능이 부족하다. 따라서 삭제된 파일을 효과적으로 분석하기 위해서는 데이터 복구도구로 얻은 결과물을 다시 디지털 포렌식 도구로 분석해야한다. 이러한 작업은 사건을 빠르고 효과적으로 대응하거나 데이터의 무결성을 보존하는데 적절하지 않다. 따라서 본 논문에서는 기존 디지털 포렌식 관련 도구들의 한계점을 벗어나 디지털 포렌식 관점에서 데이터 복구 및 분석 도구를 통합 구현하기 위한 프레임워크를 제시하고 구현하였다.

• Natural Product Sciences
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• 제6권3호
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• pp.147-150
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• 2000

The extracts of Carica papaya (flower), Barringtonia macrostachya (leaves), Coleus tuberosus (tuber), Mangifera indica (fruit skin) and Eugenia polyantha (leaves) showed strong in vitro anti-tumor promoting activity when assayed using Raji cells (Mooi et al., 1999). The antitumor promoting activity of the crude extracts was further analyzed by immunoblotting analysis of Raji cells carving Epstein-Barr virus genome. The expression of early antigens diffuse (EA-D) and early antigens restricted (EA-R) was determined by performing western blotting of treated Raji cells with human sera of nasopharyngeal carcinoma patients. All the plant extracts were shown to be able to suppress both EA-D and EA-R.

• 건축역사연구
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• 제16권3호
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• pp.115-131
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• 2007

Jeong Woo-tae(?-1809) was a military official who had worked as Byeol-Gan-Yeok in the governmental construction works during the late 18th century through the early 19th century. Byel-Gan-Yeok, literally a special technician, was an official post in the governmental construction works that carries specific technical tasks from the mid 18th century. Over 30 years, Jeong Woo-tae had devoted himself in the construction of various royal tombs, city walls, and palace buildings. He showed superb and various techniques in the works of stone carving and architectural details. After finishing the construction of the tomb of King Jeong-jo's father successfully, he was appointed as a governor of a rural town. Being on duty of the governor, he used to participate in the construction works as a technician. He also made a couple of innovative devices in the field of construction, like a carrying apparatus, Byel-Nok-No. His works secured the setting up of the post of Byel-Gan-Yeok in the governmental construction system in the 19th century. But his technical achievement remained as his own private works rather than developing to the universal growth of the craftsmen's skill. This might be a limitation of the Byel-gan-Yeok's role, whose position was remained in the midway between official and craftsman.

• 복식문화연구
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• 제15권3호
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• pp.541-549
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• 2007

Goguryo is the ancient dynasty which established the system of ancient state earlier than Baekje and Sila, and was a strong political and military power. Unlike the rock carving works of prehistoric times, mural paintings composed of line and color tones in tombs are characterized more by its social aspect and symbolism as a serious form of art than other cultural heritage of Goguryo. In response to that, this study analyzed the dress and ornaments of women found in Anak No. 3 ancient tomb, Susan-ri ancient tomb, Ssangyeongchong, which are the ancient tombs in Pyeongyang from 4th century to 5th century, have relatively more ancient tombs than any other places and preserved the mural paintings well, by using the plate, slide, literature and data related to relics in order to figure out the characteristics of women's dress and ornament in Goguryo, and the lifestyle and social aspect of Goguryo.

• 한국재료학회:학술대회논문집
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• 한국재료학회 2010년도 춘계학술발표대회
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• pp.24.1-24.1
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• 2010

In practical operation, the exposed surfaces may get dirty thus degrade the performance of devices. So the combination of self cleaning and antireflection is very desirable for use in outdoor photovoltaic and displaying devices, self cleaning windows and car windshields. For the purpose of self cleaning, the surface needs to be either superhydrophobic or superhydrophilic. However, in practice AR in the visible region and self cleaning are a pair of competitive properties. To satisfy the requirements for superhydrophobic or superhydrophilic surfaces, high surface roughness is required. But it usually cause severely light scattering. Photo-responsive coatings (TiO2, ZnO etc.) can lead to superhydrophilic. However, the refractive indices are high. Thus for porous structure, controlling pore size in the underwavelength scale to reduce the light scattering is very crucial for highly transparent and self cleaning antireflection coating. Herein, we demonstrate a simple method to make high performance broadband antireflection layer on the glass surface, by "carving" the surface by hot alkali solution. Etched glass has superhydrophilic surface. By chemical modification, it turns to superhydrophobic. Enhanced transparency (up to 97%) in a broad wavelength range was obtained by short time etching. Also antifogging effect has been demonstrated, which may offer advantage for devices working at high humidity environment or underwater. Compositional dependence of the properties was observed by comparing three different commercially available glasses.

• 한국실내디자인학회논문집
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• 제22권1호
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• pp.183-193
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• 2013

The study aimed to find the fundamental differences of aesthetics in Korea, China, and Japan by analyzing expressive features and structural meanings of the storage furniture from $17^{th}$ to $19^{th}$ century. The study was performed in four steps; analysis of expressive features, isotopic analysis, semantic structure analysis, and comprehensive interpretation. The results showed that three countries had linear shapes with curvilinear elements, closed forms with open spaces, natural material hues with change of tone or color, and symmetrical forms with asymmetrical patterns and structures in common. Korea comparatively accented on the natural material colors and wood grains. China stressed on the big and wide faces using three-dimensional carving. Japan accented on the linear elements with strong color contrast and decorative metal fixtures. These features were caused by the traditional thoughts and according aesthetic principles. Korea and China were affected by the Confucianism focused on establishing the order of rank. Meanwhile, Japan was more influenced by the Buddhism emphasized on the individuality and communication. Therefore, the differences of the expressive features in furniture among the three countries were inevitable consequences of the different ideologies.

• Archives of Plastic Surgery
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• 제32권6호
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• pp.791-795
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• 2005

A symmetric approach, using external rhinoplasty, is presented to aid the plastic surgeon in obtaining improved aesthetic and functional results in patients with postoperative nasal deformities. The external approach yields a full visualization of the underlying nasal framework and intraoperative evaluation of the deformities to be corrected subsequently. The nasal septal cartilage is unequivocally one of the best graft sources for reconstruction of the dorsum, columella or tip. It has fairly even surface and pliability in carving and shaping the graft. The graft can be obtained during the surgery with less morbidity and prepared easily for need of the shape. The only real disadvantage is the limited amount of cartilage that can be obtained from the septum. The dorsal and caudal rims, one or more cm in width, of the nasal septum should not be disturbed to maintain the nasal frame during harvesting the septal graft. Authors invented novel instruments, J & D knife and Flat (Spatula) suction tip, and have employed the devices for harvesting the septal cartilage. We were unable to gain enough amount of the cartilage by using a swivel knife or cartilage scissors. The septal cartilage can be resected as much as needed with newly invented instruments which facilitate a separation(method) technique.

• 한국자기학회지
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• 제26권6호
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• pp.206-212
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• 2016

대형 전동기에서 영구자석을 받치는 철제 받침대의 형상은 요크와의 결합력을 결정하는 매우 중요한 요소이다. 대형 전동기에서 받침대의 형상에 따라 요크와의 결합력 차이가 있다. 이 논문에서는 이중 받침대(Double bed)와 단일 받침대(Single bed)의 결합력을 가상공극 법을 통해 계산하여 차이점과 문제점을 제시하고 단일 받침대가 결합력 향상 측면에서 우위에 있음을 보여준다. 또한 받침대의 아래에 홈(Groove) 형상을 새김으로해서 받침대와 요크 간의 결합력이 향상됨을 보인다

• Nuclear Engineering and Technology
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• 제21권3호
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• pp.186-192
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• 1989

14$\times$14형 교체노심용 핵연료집합체 상단고정체 설계의 일환으로 핵연료집합체 운송 및 취급시의 하중조건하에서 여러 상단고정체 구조모델들에 대한 구조해석을 ANSYS code를 사용하여 수행하였다. 해석 모델에서는 3차원 등매개변수(isoparametric) 요소를 사용하였으며 설계조건들을 위배하지 않으면서 Adapter plate에 있는 구멍들의 배치를 조정하는 한편 Adapter plate에 부착되는 두름판(Enclosure)의 부착 방법을 개선함으로서 상단고정체의 구조적 강도를 증가시켰다. 이러한 개념들은 14$\times$14 교체노심용 핵연료 설계에 채택되었다.

• 국제초고층학회논문집
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• 제7권4호
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• pp.299-311
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• 2018

As engineered timber such as Glulam is seeing increasing use in tall timber buildings, building codes are adapting to allow for this. In order for this material to be used confidently and safely in one of these applications, there is a need to understand the effects that fire can have on an engineered timber structural member. The post-fire resilience aspect of glulam is studied herein. Two sets of experiments are performed to consider the validity of zero strength guidance with respect to short duration fire exposure on thin glulam members. Small scale samples were heated in a cone calorimeter to different fire severities. These samples illustrated significant strength loss but high variability despite controlled quantification of char layers. Large scale samples were heated locally using a controlled fuel fire in shear and moment locations along the length of the beam respectively. Additionally, reduced cross section samples were created by mechanically carving a way an area of cross section equal to the area lost to char on the heated beams. All of the samples were then loaded to failure in four-point (laterally restrained) bending tests. The beams that have been burnt in the shear region were observed as having a reduction in strength of up to 34.5% from the control beams. These test samples displayed relatively little variability, apart from beams that displayed material defects. The suite of testing indicated that zero strength guidance may be under conservative and may require increasing from 7 mm up to as much as 23 mm.