• 한국진공학회:학술대회논문집
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• 한국진공학회 2009년도 제38회 동계학술대회 초록집
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• pp.9-10
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• 2010

Since the discovery of graphene by mechanical exfoliation from graphite[1], various fabrication methods are available today such as chemical exfoliation, epitaxial graphene on SiC substrates, etc. In view of industrialization, the mechanical exfoliation method may not be an option. Epitaxial graphene on SiC substrates, in this respect, is by far more practical because the method consists of conventional thermal treatments familiar to semiconductor industry. Still, the use of the SiC substrate itself, and hence the incompatibility with the Si technology, lessens the importance of this technology in its future industrialization. In this context, we have tackled the problem of forming graphene on Si substrates (GOS). Our strategy is to form an ultrathin (~80 nm) SiC layer on top of a Si substrate, and to graphitize the top SiC layers by a vacuum annealing. We have actually succeeded in forming the GOS structure [2,3,4]. Raman-scattering microscopy indicates presence of few-layer graphene (FLG) formed on our annealed SiC/Si heterostructure, with the G ($1580\;cm^{-1}$) and the G'($2700\;cm^{-1}$) bands, both related to ideal graphene, clearly observed. Presence of the D ($1350\;cm^{-1}$) band indicates presence of defects in our GOS films, whose elimination remains as a challenge in the future. To obtain qualified graphene films on Si substrate, formation of qualified SiC films is crucial in the first place, and is achieved by tuning the growth parameters into a process window[5]. With a potential for forming graphene films on large-scale Si wafers, GOS is a powerful candidate as a key technology in bringing graphene into silicon technology.

• 한국소음진동공학회논문집
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• 제23권11호
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• pp.982-986
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• 2013

The noise emitted from construction machinery has long been a cause of environmental disputes, especially to the nearby residents. In 2008, the Ministry of Environment adopted the construction machinery noise labeling system to encourage the development of the low noise construction machinery. After the implementation of the noise labeling system of the construction machinery, the noise emitted from the construction machinery has been decreased over the six years. But, as the quality of life improves, a growing number of people desire more comfortable and quite living environment. Under the situation, new systems like the low noise labeling system are considered to encourage the development of the low noise construction machinery. In accordance with the low noise labeling system, the construction machinery satisfying the standard of low noise are qualified to attach the low noise label in front of the products. Thus, the product qualified the low noise certification will be incentivized by the choice of the consumer. In this paper, we have studied the necessity of the low noise labeling system for the construction machinery and the considerations to adopt the low noise labeling system of construction machinery. And we have studied appropriate criterion to judge the low noise construction machinery. The considerations studied in this paper will be helpful to adopt the low noise labeling system of construction machinery in the future.

• 영재교육연구
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• 제9권1호
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• pp.63-84
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• 1999

This study is to examine the current problems of teaching gifted children and suggest elements(or factors) to be considered in setting up goals thereof by analyzing incumbent teachers awareness. 121 teachers were arbitrarily selected from 30 different kindergartens located in Seoul and Anyang, and they were interviewed with two parts questionnaires(or opinions) of improving current practice. The first part of the questionnaire is composed of the questions about teachers awareness of gifted children, actual state of teaching gifted children, effects of teaching in kindergarten for gifted children, and desired direction for teaching improvement. The second part of the questionnaire provided interpretation of precociousness by study habit, creativity and definitive properties and asked the number of children qualified in their classes. Since the results of the first interview as to awareness of gifted children were dismal, 40 teachers were thereafter randomly selected again, and the second interview was warranted. The results alarmingly revealed that program of teaching gifted children were barely existing even though the teachers awareness for the needs of special education for the precocious as well of study materials and programs thereof was high. In addition, the teachers familiarity of gifted children was surprisingly low. At the second interview whereby gifted children was explained, the teachers awareness of gifted children was dramatically improved to 40% in comparing with 7.4% at the first interview without explanation of gifted children. Teachers awareness of gifted children was low because of lacking direct or indirect experience of having gifted children and special programs therof in their classes as well as teachers nonchalance. Therefore not only adequate training and education of teachers, but also cultivation of qualified teachers for special programs for the precocious are obligatory. Training of incumbent teachers and determination of gifted children are prerequisite for timely discovery of gifted children and adequate education for them. Development of special education programs and diffusion are also crucial.

• 대한원격탐사학회지
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• 제24권5호
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• pp.483-496
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• 2008

Qualified ground control points (GCPs) are required to construct a digital elevation model (DEM) from a pushbroom stereo pair. An inverse geolocation algorithm for extracting GCPs from ERS SAR data and the SRTM DEM was recently developed. However, not all GCPs established by this method are accurate enough for direct application to the geometric correction of pushbroom images such as SPOT, IRS, etc, and thus a method for selecting and removing inaccurate points from the sets of GCPs is needed. In this study, we propose a method for evaluating GCP accuracy and winnowing sets of GCPs through orientation modeling of pushbroom image and validate performance of this method using SPOT stereo pair of Daejon City. It has been found that the statistical distribution of GCP positional errors is approximately Gaussian without bias, and that the residual errors estimated by orientation modeling have a linear relationship with the positional errors. Inaccurate GCPs have large positional errors and can be iteratively eliminated by thresholding the residual errors. Forty-one GCPs were initially extracted for the test, with mean the positional error values of 25.6m, 2.5m and -6.1m in the X-, Y- and Z-directions, respectively, and standard deviations of 62.4m, 37.6m and 15.0m. Twenty-one GCPs were eliminated by the proposed method, resulting in the standard deviations of the positional errors of the 20 final GCPs being reduced to 13.9m, 8.5m and 7.5m in the X-, Y- and Z-directions, respectively. Orientation modeling of the SPOT stereo pair was performed using the 20 GCPs, and the model was checked against 15 map-based points. The root mean square errors (RMSEs) of the model were 10.4m, 7.1m and 12.1m in X-, Y- and Z-directions, respectively. A SPOT DEM with a 20m ground resolution was successfully constructed using a automatic matching procedure.

• 한국운동역학회지
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• 제31권4호
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• pp.259-269
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• 2021

Objective: The purpose of this systematic review and meta-analysis was to investigate age-related bimanual coordination functions in older adults. Method: Thirteen studies that compared bimanual coordination functions in older adults with those in healthy young adults qualified for this meta-analysis. We additionally categorized 21 total comparisons from the 13 qualified studies into two types of task-related moderator variables: (1) kinematic versus kinetic movements and (2) symmetry versus asymmetry movements. Results: Random effects model meta-analysis found that older adults revealed significant bimanual coordination impairments as compared with young adults (Hedges's g = -0.771; p < .0001; I² = 74.437%). We additionally confirmed specific bimanual coordination deficits using two moderator variables: 1) kinematic (Hedges's g = -0.884; p < .0001; I² = 0.000%) and kinetic (Hedges's g = -0.666; p = .023; I² = 86.170%). 2) symmetry (Hedges's g = -0.712; p = .001; I² = 74.291%) and asymmetry (Hedges's g = -0.817; p < .0001; I² = 76.322%). The moderator variable analysis indicated older adults indicated bimanual coordination deficits in the upper extremities than healthy young adults while performing kinematic bimanual coordination tasks and asymmetry coordination tasks. Conclusion: These findings suggest that developing motor rehabilitation programs based on asymmetric bimanual movement task for enhancing interlimb coordination functions of older adults may be crucial for increasing their independence in everyday activities. Given that elderly revealed the deficits in lower extremities coordination when older adults perform gait, posture, and balance, future studies should estimate lower limb coordination functions in elderly people.

• 한국중재학회지:중재연구
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• 제31권1호
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• pp.129-154
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• 2021

As our society and industry develop, disputes are becoming ever more complicated and diversified to the point that it is alleged that dispute resolution by court proceedings has certain limits and setbacks. Therefore, it is commonly suggested that mediation by a qualified mediator should come as an alternative method, and there have been many attempts to establish and provide mediation service in the courts and government authorities. To comply with a party's autonomy, which is the essential basis of mediation, and to promote the use of mediation, it is highly recommended that private mediation, rather than court-driven or administrative mediation, shall take the initiative. In the meantime, despite a number of academic research and attempts to increase the awareness and use of mediation nationwide, we have not yet seen meaningful developments due to the longstanding misunderstanding and discredit of mediation. In contrast, Italy has begun to revitalize mediation by enacting 'Legislative Decree No. 28/2020' following the 'Directive 2008/52EC' of the European Parliament and encouraging the so-called via-mediation policy. It is acknowledged to have significantly contributed to the development of private mediation in Italy and the increased use of mediation as a dispute resolution method. It shall be particularly noted that Italy's mediation proceedings have certain traits, including preliminary mediation meetings, mandatory involvement of legal counsel, and tax benefits for the settled cases by mediation. Italy's efforts would provide people with meaningful lessons and perspectives. As society strives to promote private mediation to distribute and utilize the judicial resources' inefficient ways, institutions need to develop practical measures to increase the number of civil and commercial disputes in the mediation proceedings. To that end, legislative efforts to enact relevant laws necessary to provide incentives to disputing parties and establish integrated education and certification programs to train qualified mediators need to start soon.

• 정보보호학회논문지
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• 제22권2호
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• pp.295-316
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• 2012

최근 정보화 사회에서 사이버 정보 보호는 가장 중요한 분야로 대두 되고 있는 가운데 전문적인 정보 보호 인력에 대한 수요는 전 세계적으로 빠르게 증가 하고 있다. 전문적이고 능력 있는 정보 기술 인력의 보유는 정보화 사회에서 향후 경쟁력과 리더십을 얻는데 매우 중요한 이슈이다. 본 연구는 대학에서 정보 보호와 관련한 전공을 선택한 학생들을 중심으로 어떠한 요인들이 그들의 전공선택과 향후 정보보안과 관련한 직업을 선택하게 하는데 영향을 미치는 지를 분석 하였다. 문헌 고찰을 통해 학생들이 전공 선택과 직업선택에 관한 영향을 미칠 수 있는 대표적인 요인들을 도출하고 이 요인들과 학생들의 전공 및 직업선택과의 관계를 실증적으로 검증 하였다. 본 연구의 연구 결과는 향후 우리 사회가 보다 우수하고 전문적인 정보 보호 인력을 양성하고 유지하는 데에 기여 할 수 있을 것이다.

• International Journal of Advanced Culture Technology
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• 제10권4호
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• pp.268-276
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• 2022

This study examined whether K-pop dance is qualified as an academic subject and how university students perceive K-pop dance as a liberal art subject. The survey was conducted with 138 students. Among the total of 138, 40 participants were male, and 53 participants were female. Fourteen(14) participants had experience with K-pop classes, and 124 participants did not have any experience with K-pop dance classes. According to the study, K-pop is a form of Korean culture that adds unique cultural and social characteristics to Koreans. It is in the cultural and art education category. In addition, K-pop dance is a socio-cultural phenomenon characterized by dance. However, K-pop dance is not qualified as an academic subject because it lacks theoretical foundations. The survey result also revealed that the students did not perceive that K-pop dance had personal, aesthetic, social, or educational value. They did not want to take a class if K-pop dance is offered as an academic subject in liberal art class. When analyzing the data by gender and experiences with dance classes, there was a difference based on gender in the two questions. In the case of females, they responded to having fun and joy from K-pop dance, while male respondents did not. Regarding the learners' interest in Kpop dance class, female respondents were more optimistic about the learner interest than male respondents. In conclusion, K-pop dance is a sociocultural phenomenon, and many informal online courses are created daily, spreading everywhere. However, the status of K-pop dance as an academic area is not set up yet.

• International Journal of Computer Science & Network Security
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• 제22권6호
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• pp.346-356
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• 2022

The jurisprudential legal rules govern the way Muslims react and interact to daily life. This creates a huge stream of questions, that require highly qualified and well-educated individuals, called Muftis. With Muslims representing almost 25% of the planet population, and the scarcity of qualified Muftis, this creates a demand supply problem calling for Automation solutions. This motivates the application of Artificial Intelligence (AI) to solve this problem, which requires a well-designed Question-Answering (QA) system to solve it. In this work, we propose a QA system, based on retrieval augmented generative transformer model for jurisprudential legal question. The main idea in the proposed architecture is the leverage of both state-of-the art transformer models, and the existing knowledge base of legal sources and question-answers. With the sensitivity of the domain in mind, due to its importance in Muslims daily lives, our design balances between exploitation of knowledge bases, and exploration provided by the generative transformer models. We collect a custom data set of 850,000 entries, that includes the question, answer, and category of the question. Our evaluation methodology is based on both quantitative and qualitative methods. We use metrics like BERTScore and METEOR to evaluate the precision and recall of the system. We also provide many qualitative results that show the quality of the generated answers, and how relevant they are to the asked questions.

• 한국컴퓨터정보학회논문지
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• 제14권9호
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• pp.105-113
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• 2009

본 논문은 외국인 110만명 시대에 양질의 외국인력을 도입하기 위하여 국가의 외국인력수급에 최적의 시스템으로 노동생산성을 높이면서, 사회비용을 감소시키는 개선된 외국인고용관리시스템(EPS) 구현에 목적이 있다. 외국인력에 대한 구직자 상세정보가 부족함으로 인하여 양질의 외국인근로자 채용에 어려움을 주고 있고, 외국인력 선발시 참고자료인 구직자명부의 신뢰성을 떨어뜨리고 있어 이를 해소하기 위하여 현행 시스템에 구직자정보동영상관리시스템을 구현할 필요가 있다. 이를 위하여 본 논문에서는 기존 시스템에 동영상 합성기능을 추가함에 있어 멀티미디어기술과 네트워크 전송 고압축코덱 데이터베이스 기술을 접목한 동영상 임베디드 시스템등을 도입하여, 기업의 수요에 부합하고 사업주가 필요로 하는 외국인근로자를 채용하는 진보된 외국인고용관리시스템에 대하여 제시하였다.