• Journal of Conservation Science
• /
• v.19
• /
• pp.85-98
• /
• 2006

Rock property of the Seosan Maaesamjonbulsang is composed of biotite granite with medium grained texture. The triad Buddha is highly deteriorated by the joint, fracture, break-out, exfoliation, dew condensation of the surface and discoloration of the secondary pollutant. Host rock of the triad Buddha is divided dozens of rock blocks with various shape, and developed irregular discontinuity planes. Besides, the host rock is promoted biological pollution due to the surrounding crowded vegetation and high humidity environment. As the results of structural stability, it is confirmed that developed discontinuity system in the host rock is exposed instability sloping environment. Therefore, the host rock and surroundings are required maintenance, and required preservation by continuance monitoring for understand behavior of discontinuity system.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.15 no.11
• /
• pp.6915-6921
• /
• 2014

This study examined the composition and spatial characteristics of the Illinois Institute of Technology (1939-1959) campus by Mies van der Rohe. Studies of the Mies' architecture has been focused mostly on "universal space", structural rationality for a single building. Therefore, it is interesting to study an IIT campus through which Mies composed public space dealing with several buildings together. To determine the relationships with his previous works and the design intentions for IIT campus, this paper studied his preliminary sketches, perspective drawings etc.. By doing so, the paper presents the following conclusions. First, Mies composed the IIT campus with simple linear buildings as walls to create the "flowing space" through the campus. Secondly, the IIT campus could become the "neutral frame" integrating the campus with urban space. Third, Mies also created an open, continuous public space in the center of the campus that allows protective, quiet seclusion for the students.

• Journal of Korean Society of Steel Construction
• /
• v.22 no.4
• /
• pp.377-388
• /
• 2010

The flexural behavior of composite HSB600 and HSB800 I-girders under a positive moment was investigated using the material non-linear moment-curvature analysis method. Three representative composite sections with different ductility properties were selected as the baseline sections in this study. Using these baseline sections, the moment-curvature program was verified by comparing the flexural strength and the moment-curvature curve obtained from the program with those obtained using the non-linear FE analysis of ABAQUS. In the FE analysis, the composite girders were modeled three-dimensionally with flanges, the web, and the concrete slab as thin shell elements, and initial imperfections and residual stresses were imposed on the FE model. In the moment-curvature and FE analyses, the 28-day compressive strength of the concrete slab was assumed to be 30-50 MPa, and the HSB600 and HSB800 steels were modeled as elasto-plastic strain-hardening materials, with the concrete as the CEB-FIP model. The effects of the ductility ratio of the composite girder, the type of steel, the compressive strength of the concrete deck, and the location of the plastic neutral axis on the flexural characteristics were analyzed.

• Journal of Internet Computing and Services
• /
• v.10 no.4
• /
• pp.55-70
• /
• 2009

Vision-based Human computer interaction is an emerging field of science and industry to provide natural way to communicate with human and computer. In that sense, inferring the emotional state of the person based on the facial expression recognition is an important issue. In this paper, we present a novel approach to recognize facial expression from a sequence of input images using emotional specific HMM (Hidden Markov Model) and facial motion tracking based on optical flow. Conventionally, in the HMM which consists of basic emotional states, it is considered natural that transitions between emotions are imposed to pass through neutral state. However, in this work we propose an enhanced transition framework model which consists of transitions between each emotional state without passing through neutral state in addition to a traditional transition model. For the localization of facial features from video sequence we exploit template matching and optical flow. The facial feature displacements traced by the optical flow are used for input parameters to HMM for facial expression recognition. From the experiment, we can prove that the proposed framework can effectively recognize the facial expression in real time.

• Journal of the Society of Naval Architects of Korea
• /
• v.29 no.4
• /
• pp.98-103
• /
• 1992

The dynamic and static torque characteristics of a three dimensional control panel installed behind a guide panel were investigated in a wind tunnel. The panel was tested for various wind speeds, angles of attack and positions of the panel. The effects of the rotational speed and the amplitude of the sinusoidal motion were also studied. The increasing rate of torque coefficients with the angular position of the panel is small when the panel remains in the wake region, but is linear when it reaches the external stream. In case of a sinusoidal motion of the pannel, a hysterisis appears in the dynamic torque. The hysterisis becomes strong as the wind speed and the angular speed of the panel increase. The unsteady torque is considered quasi-steady when the angular speed is less than 5.5rad/s, i.e. the reduced frequency is less than 0.035.

• The Journal of the Korea Contents Association
• /
• v.19 no.8
• /
• pp.427-439
• /
• 2019

The purposes of the study were to introduce a new approach in overcoming career problems of adolescents with multicultural backgrounds, and to explore public views on their careers. Using the Q-methodology, the types of perception toward multicultural adolescents' careers and their features from diverse views were drawn, Data from 35 participants and 34 statements were analyzed by using the QUANL-PC program. The identified perception types were classified as four types: neutral perception type, economic hardship perception type, lack of career training perception type, and lack of professional support perception type. The results found that views toward career problem of adolescents with multicultural backgrounds are neither positive nor negative, and their perceptions were more varied and specific beyond the dichotomy. Therefore, to promote the careers development of adolescents with multicultural backgrounds, more individualized career supporting strategy should be provided based on the applicable perception types.

• The Journal of the Korea Contents Association
• /
• v.19 no.5
• /
• pp.658-668
• /
• 2019

The political influences of general programming channels have grown with the help of the current affairs talk programs for years but also these channels have been criticized as politically biased media. This study investigates the characteristics of the panels who had appeared for 6 months since July of 2017 and examines the relationship between the panels' talk and the position of political parties. The results show that jobs of the casting panels were introduced as neutral ones which are not related to politics. However, after reclassifying them in terms of their political careers, most panels were more likely to be involved in political parties. In addition, they tend to support the positions of the ruling or opposition parties. The more the association with the political party, the stronger the panel's comments. The partisanship of the panels should be clearly presented in the broadcasting programs. It is necessary to distinguish genres of current affair programs by consistent standards to ensure consistency of deliberation. Lastly self-regulation of program producers should be more strengthened.

• The Journal of the Petrological Society of Korea
• /
• v.19 no.2
• /
• pp.123-139
• /
• 2010

The properties of fracture system in Precambrian Jangbong schist and Mesozoic granites from Seokmo-do, Ganghwa-gun were investigated and analyzed. Most of the fractures measured at outcrops are nearly vertical or steeply dipping. Orientations of fracture sets in terms of frequency order are as follows: Set $1:N2^{\circ}E/77^{\circ}SE$, Set $2:N17^{\circ}E/84^{\circ}NW$, Set $3:N26^{\circ}E/64^{\circ}SE$, Set $4:N86^{\circ}W/82^{\circ}SW$, Set $5:N80^{\circ}W/77^{\circ}NE$, Set $6:N60^{\circ}W/85^{\circ}SW$, Set $7:N73^{\circ}E/87^{\circ}NW$, Set $8:N82^{\circ}W/53^{\circ}NE$, Set $9:N23^{\circ}W/86^{\circ}SW$, Set 10: $N39^{\circ}W/61^{\circ}NE$. Especially, the rose diagram of fracture strikes(N:240) indicates that there are two dorminant directions of N-S~NNE and WNW. These distribution pattern of fractures from Seokmo-do correponds with those of major lineaments from South Korea suggested in previous study. Meanwhile, the scaling properties on the length distribution of fracture populations have been investigated. First, fracture sets from Precambrian Jangbong schist and Mesozoic granites(north and south rock body) has been classified into five groups(group I~V) based on strike and frequency. Then, the distribution chart generalized the individual length-cumulative frequency diagram for above five groups were made. From the related chart, five subpopulations(group I~V) that closely follow a power-law length distribution show a wide range in exponents(-0.79~-1.53). These relative differences in exponent among five groups emphasizes the importance of orientation effect. From the related chart, the diagram of group III occupies an upper region among five groups. Finally, the distribution chart showing the chracteristics of the length frequency distribution for each rock body were made. From the related chart, the diagram of each rock body shows an order of porphyritic biotite granite < hornblende granodiorite < medium-grained biotite granite(south rock body) < medium-grained biotite granite(north rock body) < Precambrian Jangbong schist. From the related chart, the diagram of more older rock body in the formation age tends to occupy an upper region. Especially, the diagram of Precambrian Jangbong schist occupies an upper region compared with the diagrams of Mesozoic granites. These distributional chracteristics suggests that coexistence of new fracture initiation and growing of existing fractures corresponding with stress field acted since the formation of rock body.

• Journal of dental hygiene science
• /
• v.6 no.3
• /
• pp.219-225
• /
• 2006

As the number of old people grows in today's modern society, dental hygienist's role is more emphasized than ever before for oral hygiene management of the aged. It is also important to find out college students' knowledge, attitude and behavior towards the elderly. Therefore, this study is conducted through interview with college students who are majoring in dental hygiene of health care in Busan and will be in charge of oral hygiene. According to the interview, this study obtains the following results: 1. The level of undergraduate students' knowledge of old people shows a total score of $14.53{\pm}2.35$ (correct response rate is 69.9%). 2. The average score of undergraduate students' attitude towards old people is in a neutral range(50~70), recording 63.12(${\pm}7.22$) on a scale of 100. 3. The average score of undergraduate students' behavior towards old people is lower than a neutral range(43~60), recording 39.09(${\pm}13.43$) on a scale of 85 and showing negative behavior. 4. Experience of living together with the elderly and participating in volunteer jobs lead to significant differences in undergraduate students' attitude towards old people. 5. Experience of living together with the elderly causes significant differences in undergraduate students' behavior towards old people. That is, undergraduate students living together with the elderly show a positive behavior towards old people. 6. Undergraduate students' knowledge shows a strong positive relationship with their attitude, but it has a bit positive correlation with behavior even though there are no statistically significant differences between knowledge and behavior. No relationship is found between behavior and attitude. That is, undergraduate students have more positive attitude as their knowledge of the elderly is higher, but their behavior is not positive.

• Journal of Conservation Science
• /
• v.37 no.6
• /
• pp.778-790
• /
• 2021

The Stone Seated Buddha Triad and Stone Standing Buddha in Bijung-ri are state-designated heritage (treasure) statues having the Buddha style of the Goryeo dynasty from the 6th century. Conservation scientific investigations were conducted to understand the preservation status of these stone Buddha statues and to establish a conservation plan. The Stone Seated Buddha Triad and Stone Standing Buddha are composed of fine-medium grained biotite granite, which is considered to be of the same origin owing to their low magnetic susceptibility distribution of less than 0.2 (×10^-3 SI unit) and similar mineral characteristics. The Stone Seated Buddha Triad has highly homogenous mineral composition and particle size, whole-rock magnetic susceptibility, and geochemical characteristics very similar to those of the nearby outcrop. It was confirmed that a combination of physical, chemical, and biological factors affects the Stone Buddha statues. In particular, both the Stone Seated Buddha Triad and Stone Standing Buddha tend to be chipped off from the front and cracked and scaled from the back. The Stone Standing Buddha located outdoors experiences granularity decomposition and black algae formation, which accelerate the weathering under unfavorable conservation environments. The result of non-destructive physical property diagnosis using ultrasonic velocity showed that both the Stone Seated Buddha Triad and Stone Standing Buddha have been completely weathered (CW), indicating very poor physical properties.