• 문화기술의 융합
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• 제10권3호
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• pp.885-890
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• 2024

본 연구는 스트레처블 디스플레이 기술이 적용된 모바일 기기의 화면 변화에 대응 가능한 보안 키패드 구조를 제안하였다. 이를 위해 우리는 현재의 리지드 폼 팩터 기반 스마트폰에 적용된 인증기법들을 스트레처블 디스플레이 기술의 전 단계에 해당하는 롤러블 및 벤더블 디스플레이 기술이 적용된 스마트폰에 적용된 인증기법들과 비교 분석하였다. 이 분석 결과를 바탕으로 우리는 스트레처블 디스플레이가 적용될 모바일 응용제품 규격인 스마트 월렛, 멀티태스킹, 스크린 확장 및 미디어 시청, 게임 및 엔터테인먼트용 폼팩터 구조에서 발생할 수 있는 사용자 편의성 문제와 보안 안전성 문제를 도출하였고 이에 대응하는 보안 키패드 구조를 제안하였다. 제안하는 보안 키패드 구조는 기존의 리지드 디스플레이 기반 폼 팩터 및 롤러블, 벤더블 디스플레이 기반 폼 팩터의 스마트폰 환경에 적용된 구조에 비해 더욱 향상된 사용자 편의성 및 보안 안전성을 제공한다.

• 한국콘텐츠학회논문지
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• 제20권1호
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• pp.519-529
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• 2020

본 연구는 대학생의 학업성취 예측모형을 구축하여, 각 요인간의 상호관계와 상대적 영향력을 밝히는데 목적이 있다. 이를 위해 J 대학 재학생 1,310명의 학습자 개인요인과 학습전략 요인을 설문하였으며, 그 결과를 데이터마이닝 기법인 의사결정나무 분석을 통하여 학업성취 예측요인의 변별과 패턴을 분석하고, 각 요인의 상대적 영향력을 살펴보기 위한 이항 로지스틱 분석을 실시하였다. 분석결과, 학업성취를 예측하는 가장 중요한 요인은 효능감으로 나타났으며, 이외 학습동기, 시간관리, 우울이 학업성취를 예측하는 요인으로 나타났다. 학업성취를 예측하는 요인의 패턴은 효능감과 시간관리 수준이 높은 경우와 효능감이 중간 수준이더라도 학습동기가 높은 경우로 나타났다. 효능감과 학습동기가 낮거나 우울이 높은 경우 학업성취를 감소시키는 것으로 나타났다. 이러한 결과를 토대로 대학생의 학업성취 향상을 위한 효능감과 학습동기 향상, 시간관리 교육 강화, 부정적 정서 관리 등을 제안하였다.

• 대한인간공학회지
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• 제36권5호
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• pp.373-383
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• 2017

Objective: The aim of this study is to introduce an operator console design review system suitable for designing and evaluating consoles based on human factor guidelines for a digitalized main control room in an advanced nuclear power plant which has a requirement for anthropometric data usage. Background: The system interface of the main control room in a nuclear power plant has been getting digitalized and consists of various consoles with many information displays. Console operators often face human-computer interactive problems due to inappropriate console design stemming from the perceptual constraints of anthropometric data usage. Method: Computational models with a process of visual perception and variables of anthropometric data are used for designing and evaluating operator consoles suitable for human system interface guidelines, which are used in an advanced nuclear power plant. Results: From the computational model and simulation application, console dimensions and a designing test module, which would be used for designing suitable consoles with safety concerns in a nuclear power plant, have been introduced. Conclusion: This case study may influence employing a suitable design concept with various anthropometric data in many areas with safety concerns and may show a feasible solution to designing and evaluating the safety console dimensions. Application: The results of this study may be used for designing a control room with the human factors requiring a safe working environment.

• 한국환경과학회지
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• 제11권6호
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• pp.471-482
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• 2002

The purpose of this study is in identifying the attraction degree of Seonunsan Provincial Park by quantitative analysis. For this, landscape slide test was performed by questionaries. And multiple regression analysis and Factor analysis were performed far identifying the attraction degree of users. The attraction degree of natural resources was evaluated by questionaries about the landscape scene of 120 slides which was pictured at the chief visual corridor So it is considered that tourism route far attracting people into natural characteristic resources should be developed. It is identified once again that factors of $\boxdr$Naturalness$\boxul$,$\boxdr$Uniqueness$\boxul$and $\boxdr$Mysteriousness$\boxul$are important in natural landscape. And 16 explanation variables which explain the attraction degree of viewing landscape were classified as 4 factors. Those were defined as $\boxdr$Ability (FⅠ)$\boxul$, $\boxdr$Season harmony (FII)$\boxul$,$\boxdr$Simplicity (FⅢ)$\boxul$ and $\boxdr$Legibility(FⅣ)$\boxul$. It is identified that the variables of FⅠ, mysteriousness, is a representative image which expresses the characteristics of Seonunsan Provincial Park.

• 천문학회보
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• 제40권2호
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• pp.37.2-38
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• 2015

According to the unified model of AGNs, type 1 and 2 AGNs are intrinsically the same objects but seem different due to an obscuring matter which can block lights from the central engine of the AGN depending on the viewing angle. The obscuring object is thought to be shaped in a toroidal form and thus the geometry of tori of AGNs is an important factor to determine the fraction of type 1 (or type 2) AGNs. Oh et al. (2015) provides a new catalog of type 1 AGNs from SDSS DR7 in the nearby universe (z < 0.2) and it contains nearly 50% more type 1 AGNs than previously known. Using this new catalog, we test the fraction of type 1 AGNs along the black hole mass (MBH) and the bolometric luminosity of AGNs (Lbol), which are regarded as key parameters of the AGNs. First of all, because the methods to derive the black hole mass and the bolometric luminosity bear uncertainties, we test how the different methods lead to different values of type 1 fraction. We found that the fraction of type 1 AGNs varies with both MBH and Lbol. The extensively-studied, "receding torus model" can only explain the trend along Lbol and hence fails to explain the trend. To understand the new trend, we test the geometry of the torus based on the "clumpy torus model". We present our results on the basic properties of the torus such as a column density or opening angle and compare with those from previous studies based on other wavelengths (e.g. Infrared or X-ray).

• 한국실내디자인학회논문집
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• 제19권6호
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• pp.197-205
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• 2010

For the spatial experience of spectators visiting a museum, the route search of trying to follow the spatial structure or production of exhibition and the information search of trying to see are accomplished at the same time. In such process, the spectator's reaction of visual perception produces the result of emotional reaction and action exchanged between human and space by going through the recognition and perception on the target of environment factor. For the spatial experience of a spectator, the reaction of visual perception which interacts according to the exhibit and exhibition environment within space according to viewing purpose, interest and concern of spectator comes out as visual activity which is an activity to understand the spatial information shown as various activities according to spatial structure and unfolding characteristics of the display. The purpose of this study is to identify The Correlation of Spectator Movement Created According to Structural Form of Exhibition Area Based on Interaction between Exhibition Area Structure and Spectator to utilize as basic material while designing museum exhibition using isovist field which is a quantitative analysis tool of spectator's visual behavior and spatial structure at each exhibition area.

• 패션비즈니스
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• 제17권3호
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• pp.15-29
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• 2013

In the children's market, characters are applied to products to stimulate children to buy a product directly or to implore their parents to buy it for them. To sell characterized products, marketers consider both parents and children. This research was designed to identify which parenting style factors affect the evaluation of characterized children's fashion products and to test how parenting style affects the evaluation of value importance of characterized children's fashion products. The parenting style factors studied were first categorized as communication, children's social acceptance, educational involvement, and media exposure. Responses from 259 parents residing in Woodbury, MN, and Ellicott City, MD, were used for data analysis. A factor analysis and canonical correlation analysis were conducted. Parents with high "Susceptibility to child peer pressure" attached importance to "Social Value" when buying characterized products. On the other hand, parents who were highly involved in their child's life and frequently intervened in their "Child's TV-viewing" attached importance to educational value. Educational value was a unique contributor to the evaluation of characterized products as compared to other fashion products. Marketers can therefore leverage both the social and educational value of characterized products.

• Journal of Multimedia Information System
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• 제3권4호
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• pp.119-128
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• 2016

This study aims to suggest a new algorithm for detecting two-wheelers on road that have various shapes according to the viewing angle for vision based intelligent vehicles. This article describes a new approach to two-wheelers detection algorithm riding on people based on modified Histogram of Oriented Gradients (HOG) using correlation coefficient (CC). The CC between two local area variables, in which one is the person riding a bike and other is its background, can represent correlation relation. First, we extract edge vectors using HOG which includes gradient information and differential magnitude as cell based. And then, the value, which is calculated by the CC between the area of each cell and one of two-wheelers, can be extracted as the weighting factor in process for normalizing the modified HOG cell. This paper applied the Adaboost algorithm to make a strong classification from weak classification. In this experiment, we can get the result that the detection rate of the proposed method is higher than that of the traditional method.

• 한국건축시공학회지
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• 제9권1호
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• pp.123-129
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• 2009

The global financial crisis resulting from sub-prime mortgage crisis in the United States, beginning in 2007, has had dealt a blow to domestic economy. The economic downturn, coupled with a large number of apartments remaining unsold has resulted in contracted investment sentiment of the builders. Thus it's difficult to even implement the business, unless the investment project is thoroughly verified as well as the accurate profitability is granted. Viewing the current situation, forecasting and evaluating the business profitability is more than important today. The study was planned to identify the factors influencing the business success and to evaluate the sensitivity, relative risk of each factor was measured, and the scope of the study was limited to the commercial buildings among other buildings except apartment buildings. Hence, the study was aimed to analyze the factors affecting the business and the sensitivity so as to be able to systematically materialize the risk management of the commercial buildings. The outcome of the study is expected to serve the useful data in analyzing the business profitability and implementing the investment projects as well.

• 한국산업융합학회 논문집
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• 제6권4호
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• pp.299-305
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• 2003

This research is for the relationship with heat treatment cooling temprature and the characteristic of Mechanical properties of Boron-Addition-Steel, the main material and SM25C steel, the sub material, structure viewing fractography, hardness test, tensite test and are carried out after the manufacturing small-specimen treated with heat of $750^{\circ}C$, $850^{\circ}C$, $1050^{\circ}C$. The influence to the Mechanical properties accompanied by AISI51B20, Boron-Addition-steel shows the following result. 1. The influenc of heat treatment by the content of cabon-steel is dominant. Addition of boron result is Strengthening structure effectively by segregation and improving over all mechanical characters such as good. it results from the increase of temacity by the stability of inter granular with improvement of harden-ability. 2. Boron-Addition-Steel exist in the from of martensite structure accompanied by the ferrite precipitition centering around grain boundary, and is improved to Hv 200. 3. The height of harden-ability and fatigue stress the influence of heat results from crystal structure of martensite by difference of strength level in the structure of ferrite and doesn't have am effect on sensibility of temperature, and turns out to defend on production and growth of Matrix-structure-factor.