• 건축역사연구
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• 제26권5호
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• pp.19-26
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• 2017

This paper aimed to identify the architectural characteristics of the chimi excavated from ancient ruins, especially middle gate remains of Bunhwangsa Temple in the Unified Silla period. Middle gate had planned $3{\times}2$ with 295mm measuring unit and gabled building. Detailed study of the shape of chimi of the middle gate restored by related field experts reveals as follows. 1) Height of chimi is 4.5(130.6cm) of Tang's system of measurement classified as large one. 2) The front and back side square hole is made for transverse timber placement. 3) Position of chimi is not the end of the ridge of roof, it moved toward the center. 4) Construction method of chimi is structured with smaller beam and center column. 5) Width and height of the ridge is less than 38cm and 54cm to be approximately, Width and height of the gabled ridge is less than 38cm and 50cm. 6) This chimi is considered to be very unique when compared to existing ancient restored chimis, it is designed to be advantageous to the chimi construction.

• 복식
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• 제59권6호
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• pp.94-105
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• 2009

Hwai-ot is the embroidered bridal red robe that represents the beauty of Korean traditional costume. As there are very few remains of Hwal-ot that are pass to date, the study on Hwal-ot has been limited to the Hwal-ot of Princess Bok-on and some civilian Hwal-ot relics. In this study, I tried to perform a positive research on Hwal-ot of the latter Joseon dynasty by inspecting these Hwal-ot remains housed at Field Museum of Chicago. This study has its meaning in the fact that it tried to illuminate diverse features and beautiful formation of the Korean traditional Hwal-ot by comparing those possessed by overseas museums with the ones in Korean museums. Number 33157 Hwal-ot has very unique pattern with both embroidery and gold imprint decorated. It has less embroidery than the Princess Bok-on's Hwal-ot but has much diverse gold imprint patterns. Other four Hwal-ot remains, other than the number 33157, have similar characteristics with the Hwal-ot housed at Changdeok-gung, whose reproductions are also kept at Dankook University Muesum and Ewha Womans University Museum, which makes it possible to deduce that they have typical characteristics of the Royal Hwal-ot of the latter Joseon dynasty.

• Journal of Korean Neurosurgical Society
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• 제61권3호
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• pp.393-401
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• 2018

The prognosis of brain tumors in children has improved for last a few decades. However, the prognosis remains dismal in patients with recurrent brain tumors. The outcome for infants and young children in whom the use of radiotherapy (RT) is very limited because of unacceptable long-term adverse effect of RT remains poor. The prognosis is also not satisfactory when a large residual tumor remains after surgery or when leptomeningeal seeding is present at diagnosis. In this context, a strategy using high-dose chemotherapy and autologous stem cell transplantation (HDCT/auto-SCT) has been explored to improve the prognosis of recurrent or high-risk brain tumors. This strategy is based on the hypothesis that chemotherapy dose escalation might result in improvement in survival rates. Recently, the efficacy of tandem HDCT/auto-SCT has been evaluated in further improving the outcome. This strategy is based on the hypothesis that further dose escalation might result in further improvement in survival rates. At present, the number of studies employing tandem HDCT/auto-SCT for brain tumors is limited. However, results of these pilot studies suggest that tandem HDCT/auto-SCT may further improve the outcome. In this review, we will summarize our single center experience with tandem HDCT/auto-SCT for recurrent or high-risk brain tumors.

• 한국농촌건축학회논문집
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• 제4권1호
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• pp.45-60
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• 2002

This research is the second attempt to illustrate the phases of ancient Korean architecture through a comparative study of historical materials such as historical ruins, relics, stone remains and art products. Among these the stone stupa (budo), contains many architectural aspects of old times, which give clues to trace the characteristics of the antient Korean structures. The study brings about following results: 1. The pillar employs an entasis technique, and the bracket system (gongpo) consists of cross beams (changbang) and small supporting blocks (soro) thereupon. A type of the bracket arm (chomcha) is also found on top of the pillar. 2. Windows and doors are assumed from the carved features on the stone stupa to be pair-doors which could be folded twice sideways and upwards. 3. There are two types of eaves; the single eaves and the double eaves consisting of a rafter and a flying rafter. 4. The roof has furrows formed by the concave tiles and the convex ones and also the tiles at the edge of eaves. And there are evidences that a variety of small images of animal and human figures were decorated along on top of the eaves.

• 한국농촌건축학회논문집
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• 제4권1호
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• pp.71-86
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• 2002

This research aims to illustrate the structure of the ancient Korean wooden buildings by a comparative study of the historical resources such as stone remains, wall paintings historiographies and excavations. As stone pagodas are the most typical stone remains, I selected for analysis some stone pagodas which contain architectural elements and results of the study are as follows: 1) The number of stories and structural modes of the base stone part show the wooden architectural aspects: they have one or two stories and their base part is constructed in the mode of assembling rectangular stones. 2) The body of the pagoda contains such architectural elements as pillars, door and windows, crossbeams, balcony, bracket sets. 3) The roof of the stone pagoda contains such architectural elements as eaves, roofs and modes of stone assembling. The results inferred through this research could be of help for further comparative studies with the other secondary materials by providing basic knowledge for it.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년도 춘계학술대회논문집
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• pp.662-665
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• 2008

We experimentally investigate the evaporation characteristics of water droplet on surfaces of various wettabilities in the range of contact angle from 30$^{circ}$ to 150$^{circ}$. When a liquid droplet on a solid surface evaporates, the contact angle generally decreases with time and the evaporation rate varies with the droplet geometry such as the contact angle and the radius of curvature. Experimental data on the contact angle as a function of the droplet volume obtained by digital image analysis techniques cannot be explained by the existing theories. By measuring the temporal evolutions of the droplet radius and contact angle, we find the qualitative difference between the evaporation patterns on the hydrophilic surfaces where the contact radius remains constant initially and those on the superhydrophobic surfaces where the contact angle remains constant. Also, the evaporation rate is observed to depend on the surface material although the currently available models assume that the rate is solely determined by the droplet geometry. Despite the fact that the theory to explain this dependence on the surface remains to be pursued by the future work, we give the empirical relations that can be used to predict the droplet volume evolution for each surface. It is expected that the present study will contribute to interpreting the effect of droplet geometry on the evaporation.

• Bulletin of the Korean Chemical Society
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• 제29권3호
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• pp.555-561
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• 2008

In air stripping of ammonia from the aqueous solution, a new removal model was presented considering the equilibrium principles for the ammonia in aqueous solution and between the aqueous and air phase. The effects of pH, temperature and airflow rate on the ammonia removal were evaluated with the model. In addition, the saturation degree of ammonia in air was defined and used to evaluate the effect of each experimental factor on the removal rate. As pH (8.9 to 11.9) or temperature (20 to 50 oC) was increased, the overall removal rate constants in all cases were appeared to be increased. Our presented model shows that the degrees of saturation were about the same (0.45) in all cases when the airflow condition remains the same. This result indicates that the effect of pH and temperature were directly taken into consideration in the model equation. As the airflow increases, the overall removal rate constants were increased in all cases as expected. However, the saturation degree was exponentially decreased with increasing the airflow rate in the air phase (or above-surface) aeration. In the subsurface aeration the saturation degree remains a constant value of 0.65 even though the airflow rate was increased. These results indicate that the degree of saturation is affected mainly by the turbulence of the aqueous solution and remains the same above a certain airflow rate.

• 건축역사연구
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• 제18권5호
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• pp.25-39
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• 2009

The examples of developing a building site after the Woongjin period are mainly found in temple sites, tile-roofed building sites of unidentified features, and palace remains including the pavilion site with the river in the front(임류각지) inside the Castle of Gongsan, Gongjoo. In case of the Hanseong period, a glimpase of the features has gained in Poongnab mud castle and Mongchon mud castle, but the excavated relics are not yet enough to make some date out of them. After the Woongjin period of Baejae, the earth-ramming development method was used mostly to construct a building site, which is divided into horizontal and slant raising of the ground level. Both are used simultaneously, but there are the significant differences in the way of raising the ground level between them. Particularly, in case of the Wanggoong-ri relics in Iksan, the ground level was raised in a narrow line slantly, which is differentiated from other slant raising of the ground level, and its time of construction also is after that of others. In addition, the board-building development method used for narrow space is usually found in the remains since the seventh century. However, there are not enough the relics of Baekjae to reveal the whole aspect of building site development. It should be studied later through the subsequent excavation and research.

• 복식
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• 제51권7호
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• pp.35-47
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• 2001

This is a research about the fabrics attached to the remains of the Okjeon old tomb which was built around the early 5th century to the mid of the 6th century. Most of the remains have one kind of fabric attached to them, but there are cases where different sorts of fabrics are attached, where one kind is attached in layers, and there are also cases where the layer is made of different types of fabrics. Although they are made of warps and wefts with no twists, there can be an S twist on the weft or on both the warp and weft, and only one Z twist can be seen. There are 81 fabrics of plain weaved, one of transformed plain weaved and five 4-end complex gauze in these remains. The sparsest plain weaved fabric has the density of 7.4 strands/cm, while the most dense fabric has the density of 148.2$\times$129.1 strands/cm and 0.046$\times$0.061/mm thickness in thread. All the fabrics observed by SEM are hemp except one silk.

• Parasites, Hosts and Diseases
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• 제54권5호
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• pp.573-583
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• 2016

The review article presents some of the history of how paleoparasitology started in Brazil, making highlight the great responsible Dr. Luiz Fernando Ferreira and Dr. Adauto Araujo, the trajectory of paleoparasitology in Brazil since 1978 and its performance in science to the present day. In sequence, it is made a presentation of parasitological findings on human remains found in archaeological sites in South America, highlighting Brazil, Argentina, Chile, and Peru, where major discoveries have occurred. Many of the parasites found in archaeological material and mentioned in this review went out of Africa with the peopling of Europe and from there they dispersed around the world, where climatic conditions allow the transmission. However, humans have acquired other parasites of animals, since humans invaded new habitats or creating new habits adopting new technologies, thus expanding its range of influence on the environment. Thus, this review article is finalized with information that explain the importance of these findings in the interaction between parasites, human host, and ambient.