• 대한건축학회논문집:계획계
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• 제35권9호
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• pp.131-142
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• 2019

The purpose of this study was to find out the characteristics of housing policies and apartment designs by comparison of supplying and remodeling apartments between France and Korea. The literature review was used in Korea cases and the literature review, site investigation, and expert interviews were used in France cases. At first, by reviewing the related literatures about the apartment developments and regenerations in France and Korea, twelve remodeling cases were represented respectively in Ile de France and Seoul. As a result, in housing policy, the Korean housing market had a shortage of low-priced houses related to biased apartment developments by private sector dependence. Consequently, the living in Korea generally required the high price in low quality houses. But in France, the housing policies were very successful in housing quantity, quality, and expense. It is involved in balances between the public housing supply and the activation of a private housing market based on the government support policy. Nevertheless, in the success of the apartment as a house type, apartments in France means the social elimination because of the supply method problems and the management failures of HLM institutions. However, in Korea, the apartment implies the successful life of the middle class population because of the competitive evolutions during 40 years as a market housing. Secondly, In the characteristics of remodeling, the remodeling in Korea was for property value improvements. It mainly executed to expand the size of a house by expansion of living space. However the remodeling in France was for social mixes and connections with the surrounding area. It mostly performed by various design methods such as vertical merging houses, partial removal, reconstruction, and construction of a local community centers and mixed-use residential buildings. This study shows the simultaneously remodeling features of those two countries. These findings can be used in developing effective strategies for the public housing regenerations in Korea and other countries.

• 한국정보시스템학회지:정보시스템연구
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• 제30권2호
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• pp.29-56
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• 2021

Purpose Cyber deviance of adolescents has become a serious social problem. With a widespread use of smartphones, incidents of cyber deviance have increased in Korea and both quantitative and qualitative damages such as suicide and depression are increasing. Research has been conducted to understand diverse factors that explain adolescents' delinquency in cyber space. However, most previous studies have focused on a single theory or perspective. Therefore, this study aims to comprehensively analyze motivations of juvenile cyber deviance and to develop a predictive model for delinquent adolescents by integrating four different theories on cyber deviance. Design/methodology/approach By using data from Korean Children & Youth Panel Survey 2010, this study extracts 27 potential factors for cyber deivance based on four background theories including general strain, social learning, social bonding, and routine activity theories. Then this study employs econometric analysis to empirically assess the impact of potential factors and utilizes a machine learning approach to predict the likelihood of cyber deviance by adolescents. Findings This study found that general strain factors as well as social learning factors have positive effects on cyber deviance. Routine activity-related factors such as real-life delinquent behaviors and online activities also positively influence the likelihood of cyber diviance. On the other hand, social bonding factors such as community commitment and attachment to community lessen the likelihood of cyber deviance while social factors related to school activities are found to have positive impacts on cyber deviance. This study also found a predictive model using a deep learning algorithm indicates the highest prediction performance. This study contributes to the prevention of cyber deviance of teenagers in practice by understanding motivations for adolescents' delinquency and predicting potential cyber deviants.

• 한국컴퓨터그래픽스학회논문지
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• 제28권3호
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• pp.23-29
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• 2022

가상인간은 가상공간(가상 현실, 혼합 현실, 메타버스 등)에서 Unity와 같은 3D Engine 전용 모델링 도구로 구현된다. 실제 사람과 유사한 외모, 목소리, 표정이나 행동 등을 구현하기 위해 다양한 가상인간 모델링 도구가 도입되었고, 어느 정도 수준까지 인간과 의사소통이 가능한 가상인간을 구현할 수 있게 되었다. 하지만, 지금까지의 가상인간 의사소통 방식은 대부분 텍스트 혹은 스피치만을 사용하는 단일모달에 머물러 있다. 최근 AI 기술이 발전함에 따라 가상인간의 의사소통 방식은 과거 기계 중심의 텍스트 기반 시스템에서 인간 중심의 자연스러운 멀티모달 의사소통 방식으로 변화할 수 있게 되었다. 본 논문에서는 다양한 대화 데이터셋으로 미세조정한 인공신경망을 사용해 사용자와 자연스럽게 대화 할 수 있는 가상인간을 구현하고, 해당 가상인간이 생성하는 문장의 감정값을 분석하여 이에 맞는 표정을 발화 중에 나타내는 시스템을 구현하여 사용자와 가상인간 간의 실시간 멀티모달 대화가 가능하게 하였다.

• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2002년도 Proceedings
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• pp.450-453
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• 2002

In radiotherapy treatment planning, it is critical to deliver the radiation dose to tumor and protect surrounding normal tissue. Recent developments in functional imaging and radiotherapy treatment technology have been raising chances to control tumor saving normal tissues. A brain phantom which could be used for image registration technique of CT-MR and CT-SPECT images using surface matching was developed. The brain phantom was specially designed to obtain imaging dataset of CT, MR, and SPECT. The phantom had an external frame with 4 N-shaped pipes filled with acryl rods, Pb rods for CT, MR, and SPECT imaging, respectively. 8 acrylic pipes were inserted into the empty space of the brain phantom to be imaged for geometric evaluation of the matching. For an optimization algorithm of image registration, we used Downhill simplex algorithm suggested as a fast surface matching algorithm. Accuracy of image fusion was assessed by the comparison between the center points of the section of N-shaped bars in the external frame and the inserted pipes of the phantom and minimized cost functions of the optimization algorithm. Technique with partially transparent, mixed images using color on gray was used for visual assessment of the image registration process. The errors of image registration of CT-MR and CT-SPECT were within 2mm and 4mm, respectively. Since these errors were considered within a reasonable margin from the phantom study, the phantom is expected to be used for conventional image registration between multimodal image datasets..

• International Journal of Knowledge Content Development & Technology
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• 제13권1호
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• pp.59-74
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• 2023

Third places are those that offer a space outside of work and home for people to escape the stress associated with the primary spaces of their lives. Through social interactivity these help in acquiring some emotional support provided by a close and intimate attachment. Such social support can turn into social resources for individuals and can lead to forming communities that may become incubators for social capital through regular visits to shared socializing places. This paper focuses on social interaction that takes place through the third place and the communities that are being created as a contributing factor to knowledge management. The study being reported in this paper investigated the role of coffee shops as third places in building communities and social capital in Kuwait. A mixed-method approach was used to conduct the study. These methods included qualitative methods such as extended conversations in the form of semi-structured interviews and quantitative methods of using questionnaires distributed to coffee shop staff and visitors. Results indicated that importance attached to providing facilities by coffee shops reflected that the owners perceived these as third places. The facilities attracted customers to coffee houses where interactions took place that helped to build communities. The pattern of visits by customers showed that mostly they come in groups and have meetings and gatherings that facilitated and encouraged interactions. The communities that are being built in the coffee shops are indicative of these being perceived as third places by owners, customers, and staff. This study shows the potential of coffee shops as a major sector of the food industry promising a valuable contribution in transformation and transition to a knowl- edge-based economy in Kuwait.

• 천문학회보
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• 제45권1호
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• pp.59.2-59.2
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• 2020

Disks around protostars are the birthplace of planets. The first step toward planet formation is grain growth from ㎛-sized grains to mm/cm-sized grains in a disk, particularly in dense regions. In order to study whether grains grow and segregate at the protostellar stage, we investigate the ALMA Band 3 (3.1 mm) and 7 (0.87 mm) dust continuum observations of the protostellar disk WL 17 in ρ Ophiuchus L1688 cloud. As reported in a previous study, the Band 3 image shows substructures: a narrow ring and a large central hole. On the other hand, the Band 7 image shows different substructures: a non-axisymmetric ring and an off-center hole. The two-band observations provide a mean spectral index of 2.3, which suggests the presence of mm/cm-sized large grains. Its non-axisymmetric distribution may imply dust segregation between small and large grains. We perform radiative transfer modeling to examine the size and spatial distributions of dust grains in the WL 17 disk. The best-fit model suggests that large grains (>1 cm) exist in the disk, settling down toward the midplane, whereas small grains (~10 ㎛) well mixed with gas are distributed off-center and non-axisymmetrically in a thick layer. The low spectral index and the modeling results suggest that grains rapidly grow at the protostellar stage and that grains differently distribute depending on sizes, resulting in substructures varying with observed wavelengths. To understand the differential grain distributions and substructures, we discuss the effects of the protoplanet(s) expected inside the large hole and the possibility of gravitational instability.

• 한국식생활문화학회지
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• 제23권2호
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• pp.204-213
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• 2008

In this age of information ruled by new technologies and knowledge, the world is interconnected as a single community, and within this trend of globalization, new cultural codes are emerging through temporal fusion between the past and the present and spatial fusion between different regions and countries. In this situation, it seems meaningful to review Korean fusion foods and restaurants serving such foods, as well as to consider their future directions. Thus, the objective of the present study was to survey and analyze Korean fusion restaurants representing Korean culture not only in Korea, but also in foreign cities, and to identify the expression characteristics of such restaurants. Based on restaurants recommended in relevant magazines and on Internet sites, 18 spaces were selected, visited, and surveyed, in which tradition and modernism were well-mixed. Data on the shapes, materials, colors, and patterns of spatial elements and food-related elements, including photographs, were collected and analyzed. The results are as follows. Of the 18 restaurants, 13 (72%) showed temporal fusion in both spatial and food-related elements, 4 showed temporal fusion in spatial elements and cultural fusion in food-related elements, and 1 showed cultural fusion in both spatial and food-related elements. In general, the spaces were mainly designed with modern elements and partially with traditional elements (ceilings, windows, furniture, articles), and the fusion of food-related elements was made in diverse forms that included temporal fusion restructuring traditional menus contemporarily, and cultural fusion harmonizing traditional food with Western cookery.

• 영어영문학
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• 제58권5호
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• pp.809-837
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• 2012

Philip Roth rejects the narrative unity and singularity of the traditional novel and creates instead a multi-levelled, fragmentary, and repetitive narrative. It is not easy to distinguish fact from fiction in The Plot Against America. As an entertaining and creative work of the postmodern historiographic metafiction, Philip Roth's The Plot Against America interrogates the existence of historically verifiable facts, the validity of authentic and official version of history, and reexamines the narrative conventions of history writing. The aim of this paper is to examine Roth's narrative experiment or 'thought experiment' and to explore the intention of creating alternative history in The Plot Against America. Roth does a 'thought experiment' in The Plot Against America. In this cautionary "what if" political fable, Roth hypothesizes that in 1940 aviation hero Charles Lindbergh, an ardent isolationist who was sympathetic to Hiltler, won the presidency. Jewish communities are stunned and terrified as America flirts with fascism and anti-semitism. Reimagining his children-with considerable fact mixed in with the fiction-Roth narrates an alternative history that has an unsettling plausibility. Roth has constructed a brilliantly telling and disturbing historical prism by which to refract the American psyche as it pertain to the discord of individual, race, history in The Plot Against America. Roth analyzes the life of individual in a historic space, the situation of anti-semitism in world of invisible order, racial conflict between black and white in world of visible order, and the darkest side of national power in this work. Roth's stories argue for the equality of various cultures grounded on the common notion of humanity, for an ethic of mutual respect, and for the peaceful resolution of conflicts.

• 한국농촌건축학회논문집
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• 제26권2호
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• pp.35-40
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• 2024

This study examines the classification and typical characteristics of 148 owner shop houses existing in the historical city center of Cheongju. First, they can be classified into single-story, middle-story, and divided types according to the distribution of residential and commercial functions. The single-story(36) has 'ㅡ', 'ㄱ', and 'narrow and deep'-shaped arrangement, with stores on the front and houses on the rear. The middle-story second floor(89) is divided into a first-story store and a second-story house, and the third floor(23) has different functions for each floor, but more than half of them have houses on the second and third floors. Among the total, there are also 16 cases in which the division type is taken with different construction times and structures. Second, in the position of the stairs connected to the upper floor among the middle-floor types(112), the outer stair type(52) to separate from the living space while making the most of the stores on the first floor accounts for 47%, but the biggest feature is that the inner staircase type(34) with privacy reaches 30%. The rear stair room type(26) entering through alleyways or private yards is also 23%. Third, the front pillar spacing varies from 1bay to 4bay in appearance, but the 2bay type on the 2nd floor and the 1bay type on the 3rd floor occupy the largest proportion. This exterior type is a characteristic of a owner shop house that can measure the range of personal ownership. Despite the conflicting functions of stores and houses, 35~40% of the cases are in which the opening positions of the upper and lower floors are unified.

• 청정기술
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• 제30권1호
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• pp.62-67
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• 2024

본 연구에서는 이산화탄소를 기반으로한 피셔-트롭시 반응에 사용되는 철계 촉매에 알칼리 금속인 Na를 함침 및 물리적 혼합 방식으로 도입하여 각각의 성능을 비교하였다. 제조된 촉매는 3.5 MPa, 330 ℃, H₂/CO₂ = 3의 가스 조성비에서 공간속도 4,000 mL h^-1 g_cat^-1 조건으로 반응성을 평가하였다. 두 가지 촉매를 비교한 결과 Na를 함침한 경우 Na가 촉매 전체에 균일하게 분산되어 있지만 물리적 방법으로 혼합한 촉매는 상대적으로 표면에 위치하였다. 또한 Na를 함침한 촉매가 더 높은 액체 탄화수소(C₅₊) 수율과 낮은 CO 선택도를 보였다. 결론적으로 촉매 내의 Na 분포가 반응에 미치는 영향을 파악하였으며 도입 방식을 통해 이를 조절할 수 있음을 확인하였다.