• 한국실내디자인학회논문집
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• 제16호
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• pp.42-48
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• 1998

Contemporary space design has based on the framework of academic standards on a number of scientific propositions in order to find out correlation of human and environment and closely examine approaches of a normative design. However the contents are enormous and introductory and have limitation of application to practical business affairs so that we will have to understand them as a thinking to explain the design with,. Therefore this study is an experimental research making use of concrete design approaches applicable to the area of space design ad cinematic construction as a medium. The purpose and significance of it lies in examining its validity and contributing to the future development of space design. Accordingly this study conducted the research through a literature survey for the understanding of space perception in the cinema deduced the language of design concept according to it examined the basic unit of cinematic construction then analyzed the cases of practical architectural spaces. The findings of this study indicate that human's perception to space and the cinema is deduced as a common conceptual language characterized by the ideas of articulation scenery and timeness. These concepts are very organic and interdependent and can probably become a means for human to appropriately analyze an behavior attribute type of investigating environment with. Also in composing space the basic units of cinematic construction can be as instrument to be easily applied to practical affairs as they are correlated with the function of space and a constituent language to be reasonably designed.

• 한국수학교육학회지시리즈A:수학교육
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• 제55권2호
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• pp.209-232
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• 2016

This study analyzed the process of steps in a program introducing Renzulli's enrichment triad model and various levels of posing open-ended problems of those who participated in the program for mathematics-gifted elementary students. As results, participants showed their abilities of problem posing related to real life in a program introducing Renzulli's enrichment triad model. From eighteen mathematical responses, gifted students were generally outstanding in terms of producing problems that demonstrated high quality completion, communication, and solvability. Amongst these responses from fifteen open-ended problems, all of which showed that the level of students' ability to devise questions was varied in terms of the problems' openness (varied possible outcomes), complexity, and relevance. Meanwhile, some of them didn't show their ability of composing problem with concepts, principle and rules in complex level. In addition, there are high or very high correlations among factors of mathematical problems themselves as well as open-ended problems themselves, and between mathematical problems and open-ended problems. In particular, factors of mathematical problems such as completion, communication, and solvability showed very high correlation with relevance of the problems' openness perspectives.

• 대한기계학회논문집A
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• 제31권10호
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• pp.1025-1030
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• 2007

Three kinds of metallic sandwich panels with quasi-Kagome truss cores have been analyzed on their mechanical behaviors subjected to bending load. According to the results of previous work on the optimal design, they were designed to have similarly high strength per weight with the identical overall sizes, i.e., the total length, the width, the core height. Differences were in the face sheet thickness and/or the thickness of the metal sheet from which the core was fabricated through expanding and bending processes. Under the bending load, they performed well as designed, as far as the maximum load is concerned. However, after the maximum load, the load-displacement curves were different each other depending on the slenderness ratio of the truss elements composing the quasi-Kagome truss cores and the face sheet thickness. Namely, the slenderness ratio and the face sheet thickness governed stability of the elastic and plastic buckling. Therefore, if energy absorption characteristics or structural stability as well as the maximum load capacity are to be achieved, the sandwich panel with thick truss members and thick face sheet should be selected.

• 한국전자통신학회논문지
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• 제8권12호
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• pp.1905-1910
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• 2013

논문은 유도 루프식 열차제어시스템에 대하여 준 정량적 안전무결성 등급(Safety Integrity Level : SIL)할당 방법을 적용하여 안전무결성 등급을 할당한 결과이다. 유도 루프식 열차제어시스템은 ATS장치, 지상ATP장치, 차상ATP장치, 지상ATO장치, 차상ATO 지상장치 하드웨어 및 소프트웨어로 구성되어 있으며, 안전무결성 등급 할당은 각 서브시스템에 대한 안전무결성 등급을 의미한다. 준 정량적 방법의 세 원칙에 근거하여, 열차제어시스템을 구성하고 있는 서브시스템에 대한 안전무결성 등급을 할당하였다.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제10권1호
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• pp.89-98
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• 2004

대화형 에이전트는 언어를 이용하여 사용자에게 적절한 정보를 제공하고 대화의 문맥을 유지하는 시스템이다. 대화형 에이전트를 더욱 현실적으로 만들기 위해서는 사용자 질의에 대한 분석과 모델링 과정이 필수적이며, 베이지안 네트워크가 이를 위한 대표적인 방법 중 하나이다. 보통 대상영역을 위한 네트워크는 매우 복잡하고 이해하기가 어렵기 때문에 네트워크를 구성하는 변수들을 분리함으로써 대화형 에이전트를 보다 쉽게 설계할 수 있다. 본 논문에서는 대화형 에이전트의 질의 분석모듈을 2단계 베이지안 네트워크로 구성하여, 설계를 보다 용이하게 하였고 문형을 고려한 세부적인 질의분석을 가능하도록 하였다. 웹 페이지를 소개하는 에이전트에 적용하여 제안한 대화형 에이전트 구조의 유용성을 보였다.

• 한국농공학회논문집
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• 제53권6호
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• pp.153-163
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• 2011

This research describe improved algorithm that is able to decide terminal criterion of Evolutionary Structural Optimization (ESO), reducing load of calculation to search load path of concrete beam, and apply to agricultural facilities. The ESO method is that make to discrete structure, structural analyze each element stress through FEM. And repeat generation with next material condition to become for most suitable composing. Individual element introduces concept of zero stiffness, but zero stiffness decisions are gone to direction of exclusion. In this stduy, improve algorithm to be convergence by 'Rule of Alive or Die' in arrival because is most suitable. Also, existing terminal criterion lack consistency because that used depend on experience of researcher. This research procedure is fellowed. First, all modulus of elasticity assume a half of elasticity modulus of material, Second, structural analysis by FEM, Third, apply to the remove ratio and restoration ratio for the 'rule of alive or die'. Forth, reconstruct the element and material conditions. And repeat the first to forth process. The terminal time of evolutional procedure is the all elastic modulus of element changed to blank value or elasticity modulus value of original. Therefore, in this study, consist the algorithm for programming, and apply to the agricultural facilities with concrete.

• 한국태양에너지학회 논문집
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• 제36권2호
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• pp.31-39
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• 2016

This study did quantitative comparative evaluation of changes in generation consequent on reflectivity of the protruding wall near the widow in case of application of PV window system to an apartment house. To be concrete, this study did comparative analysis of the generation of (B) through the process of composing Mock-up (A)comprising the protruding window near the window and Mock-up(B) free of nearby wall interference, and giving change to the reflectivity of the wall (Case_1~3). The analysis result showed that the difference in generation was slight in case solar radiation was less than 10,000Wh in all three conditions. On the contrary, in case solar radiation was more than 10,000 Wh, the generation as against Module(B), was analyzed to be 87~91% in Case_1(5% reflectivity), 18~60% in Case_2(85% reflectivity), and 16~71% in case_3(93% reflectivity), respectively.

• 천문학회보
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• 제41권2호
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• pp.41.3-42
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• 2016

No matter how intense magnetic flux it contains, a coronal magnetic structure has little free magnetic energy when a composing magnetic field is close to a potential field, or current-free field where no volume electric current flows. What kind of electric current system is developed is therefore a key to evaluating the activity of a coronal magnetic structure. Since the corona is a highly conductive medium, a coronal electric current tends to survive without being dissipated, so the free magnetic energy provided by a coronal electric current is normally hard to release in the corona. This work aims at clarifying how a coronal electric current system is structurally developed into a system responsible for producing a flare. Toward this end, we perform diffusive MHD simulations for the emergence of a magnetic flux tube with different twist applied to it, and go through the process of structuring a coronal electric current in a twisted flux tube emerging to form a coronal magnetic structure. Interestingly, when a strongly twisted flux tube emerges, there spontaneously forms a structure inside the flux tube, where a coronal electric current changes flow pattern from field-aligned dominant to cross-field dominant. We demonstrate that this structure plays a key role in releasing free magnetic energy via rapid dissipation of a coronal electric current, thereby producing a flare.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1583-1586
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• 2006

All non-dopant white organic light-emitting diodes (WOLEDs) have been realized by using solid state highly fluorescent red bis(4-(N-(1- naphthyl)phenylamino)phenyl)fumaronitrile (NPAFN) and amorphous bipolar blue light-emitting 2-(4- diphenylamino)phenyl-5-(4-triphenylsilyl)phenyl- 1,3,4-oxadiazole (TPAOXD), together with well known green fluorophore tris(8- hydroxyquinolinato)aluminum $(Alq_3)$. The fabrication of multilayer WOLEDs did not involve the hard-tocontrol doping process. Two WOLEDs, Device I and II, different in layer thickness of $Alq_3$, 30 and 15 nm, respectively, emitted strong electroluminescence (EL) as intense as $25,000\;cd/m^2$. For practical solid state lighting application, EL intensity exceeding $1,000\;cd/m^2$ was achieved at current density of $18-19\;mA/cm^2$ or driving voltage of 6.5-8 V and the devices exhibited external quantum efficiency $({\eta}_{ext})$ of $2.6{\sim}2.9%$ corresponding to power efficiency $({\eta}_P)$ of $2.1{\sim}2.3\;lm/W$ at the required brightness.

• 대한가정학회지
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• 제41권8호
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• pp.55-62
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• 2003

Natural dyes generally fan into two categories; organic dyes coming from animals and plants and inorganic dyes obtained from various minerals such as bengala, loess, ultramarine, prussian blue and etc. The main components of volcanic ash is clay mineral such as kaolinite, illite, quartz. Clay minerals Composing volcanic ash are kaolinite［$Al_4Si_4O_{10}{(OH)_{8}}$］, illite［$K_{X}Al_2(Si,\;Al)_4O_{10}{(OH)}_2$］, quartz［$SiO_2$］, homblende［$Na_{0-1}\;Ca_2{(Mg,\;Fe,\;Al)}_5{(Si,\;Al)}_{8}O_{22}{(OH)}_2$］and etc. And the redish color mainly comes from iron oxide. In this paper, two different classes of dyeing process were tested; dyeing with volcanic ash only and cationic agent pre-treatment followed by dyeing with volcanic ash. The compositions of the volcanic ash powder and the volcanic ash deposited on the cotton knitted fabrics identified by energy dispersive spectrometer and XRD analysis. The major chemical components of volcanic ash deposited on the cotton knitted fabrics were confirmed to be the saicon oxide, iron oxide, and aluminum oxide and etc. According to the analysis by XRD and EDS-SEM, kaolinite, illite and quartz were also identified.