• Bulletin of the Korean Chemical Society
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• 제20권6호
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• pp.705-711
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• 1999

The laser-induced transient grating method is applied to study the dynamics of the nematic MBBA film. The nanosecond laser pulses of 355 nm are used to make the transient grating and the cw He-Ne laser of 633 nm is used to probe the dynamics. Strong multiple order diffractions are observed at high nematic temperatures. The reordering process induced by the phototransformed state, which is the locally melted state from the nematic sample, is attributed to the main origin of the multiple order diffractions from the nematic MBBA. The characteristics of the multiple order gratings are discussed with the grating profiles simulated from the multiple diffraction signals.

• 수산해양교육연구
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• 제21권4호
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• pp.471-488
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• 2009

This study aims to analyze the illustrations of social studies textbooks in order to find both sex-stereotypes and changing trends of sex-stereotypes last 60 years. For the study, 56 textbooks of elementary social studies of grades 3 to 6 are collected from the first to seventh national curriculum. The illustrations of social studies textbooks are analyzed from two different perspectives. First, it analyzes the numbers of male and female appearances in the work place of the textbook illustrations. Second, it analyzes sex-stereotypes in the work place. Through the analysis, this study tried to find changing trends of sex-stereotypes last 60 years in the illustrations of social studies textbooks. The findings and suggestions are as follows. First, we need to make more female appearances in the illustrations in order to make female and male appearances balanced in the textbooks. Second, we need to make more female appearances in the work place, especially providing more female appearances in the illustrations of high-ranking jobs. Third, we need to present male and female characters more balanced in a variety of life situations, thereby contributing to the equal and just society to come in the near future.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2003년도 ISIS 2003
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• pp.187-190
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• 2003

Many manufacturing companies consider the integrated and concurrent scheduling because they need the global optimization technology that could manufacture various products more responsive to customer needs. In this paper, we propose an advanced scheduling model to generate the schedules considering resource constraints and precedence constraints in make-to-order (MTO) manufacturing environments. Precedence of work- in-process(WIP) and resources constraints have recently emerged as one of the main constraints in advanced scheduling problems. The advanced scheduling problems is formulated as a multiobjective mathematical model for generating operation schedules which are obeyed resources constraints, alternative workstations of operations and the precedence constraints of WIP in MTO manufacturing. For effectively solving the advanced scheduling problem, the multi-objective hybrid genetic algorithm (m-hGA) is proposed in this paper. The m-hGA is to minimize the makespan, total flow time of order, and maximum tardiness for each order, simultaneously. The m-hGA approach with local search-based mutation through swap mutation is developed to solve the advanced scheduling problem. Numerical example is tested and presented for advanced scheduling problems with various orders to describe the performance of the proposed m-hGA.

• 한국농공학회논문집
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• 제53권2호
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• pp.45-52
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• 2011

This study is to develop a Priority Decision System for Redevelopment (PDSR) which is able to decide the priority for redevelopment of agricultural reservoirs. The major scopes of this research are to make the related GIS data like hydrologic unit map and other thematic maps to determine the suggested priority index (PI), and to develop the PDSR handling the GIS data and calculating weighing factors for the PI. In order to make the weighing factor decision module, the AHP technique was adopted. The result of the weighing factor calculation was showed PC (Possibility Criteria) and RC (Restriction Criteria) were 76% and 24% respectively. Which means that most of the specialist selected PC category prior to RC because of whom to mostly of major technique. So, in order to make more objective result, the selection of specialists is important like environmental activists or local residents and so on. The product from this research can provide more scientific support to decide the priority decision.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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• pp.31-36
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• 2006

일반적인 생산일정관리 시스템은 ERP(전사적자원관리)의 모듈로서 MRP(자재소요량계획) 형태로 포함되어 있다. MRP 형태의 생산일정관리 시스템은 설계 및 생산일정의 변화에 신속하고 유연하게 대처할 수 없어 수주생산방식의 중소기업에서 중요한 납기를 지키는 것이 힘든 것으로 알려져 있다. TOC의 DBR Scheduling 시스템은 생산현장의 변화에 유연하고 효과적으로 대처할 수 있는 것으로 알려져 있어 수주생산방식 중소기업의 생산일정을 관리하는데 적합할 것으로 생각한다. 본 논문에서는 TOC 기반의 DBR Scheduling 시스템을 개발하기 위하여 먼저 Together이란 UML 툴을 이용하여 시스템 설계서를 작성하였고 Visual Basic.Net으로 시스템을 개발하였다.

• 디지털융복합연구
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• 제11권4호
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• pp.449-457
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• 2013

본 연구에서는 현대 사회의 변화로 주목받고 있는 남성의 선호 이미지와 가치를 규명하고 미디어에 등장하는 인물을 통해 남성 메이크업이 현대 사회문화적 가치를 어떻게 충족시키고 있는지 알아보고자 한다. 연구 방법으로는 우선 문헌 자료와 인터넷을 중심으로 남성의 선호 이미지와 사회문화적 가치를 고찰하였다. 다음으로, 디자인 요소를 중심으로 미디어에 등장한 인물을 통해 남성 메이크업 사례를 비교 분석하였다. 첫째, 실용적 가치는 목적 지향적인 행동을 위한 합리적 사용의 기술적, 도구적 가치이다. 실용적 가치를 강조한 메이크업은 밝고 내추럴한 피부 표현, 최대한 자제된 색조의 연출, 진한 아이브로우 색상의 사용으로 표현되었다. 둘째, 미적 가치는 순수한 미적 가치만을 추구하는 표현적, 장식적 가치이다. 셋째, 상징적 가치는 역사와 사회에서 체험되는 의지적, 의도적 가치이다. 이는 남성들의 구매행동 동기를 설명하는데 있어 중요한 기준이 되는 선호 이미지를 이해하고 이미지 관리 형태에 대한 분석과 향후 남성들의 뷰티 트렌드를 유추하는데 실질적인 기초 자료로 활용 될 수 있으리라 사료된다.

• 경영정보학연구
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• 제11권2호
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• pp.209-231
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• 2009

최근, 제조기업들의 일반적인 추세는 제품들이 보다 더 고객화 되어가고 있으며, 제품수영주기가 짧아지고 있다는 것이다. 이러한 제조기업들에 있어서, 고객들은 종종 자신들이 주문한 제품의 제조과정 동안에 자신들의 요구사항들을 지속적으로 반영하기를 원하며, 또한 자신들의 요구사항들이 충족된 제품을 인도받기를 원한다. 이러한 기업 환경을 고객지향 수주생산 환경이라고 한다. 본 논문에서는 고객지향 수주생산 환경에 적합한 제품정보 통합시스템 (PDIS: Product Data Integration System) 구축을 위한 정보시스템 개발 방법론을 정립하고, 또한 정립된 방법론을 이용하여 대표적인 고객지향산 제품인 'H'중공업의 선박엔진 제품을 대상으로 PDIS 구축 사례를 제시하였다. 현재 구축된 PDIS는 현업에서 성공적으로 운영되고 있다. 그 결과, 납기시간이 단축되고, 고객과의 관계가 향상되었으며, 그리고 제품수명주기 동안 기업 내 부서간의 업무 협력이 향상되었다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.497-497
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• 2000

This paper is concerned with the design of LMI based H$_{\infty}$ controller for a line of sight(LOS) stabilization system. This system which is even linearized to analyse nonlinear characteristic has also a lot of uncertainties. In addition, the angular velocity disturbance from the vehicle's driving deteriorates the stabilized LOS, main purpose of this system. In case of fast driving, particularly, all components which are ignored and skipped to make mathematical modelling act as the uncertainties against this system. The robustness against these uncertainties has been also continuously demanded including the well tracking performance for the target. Therefore, this paper employed H$_{\infty}$ control theory to satisfy these problems and LMI method to make suitable controller with few constraints for this system. Although this system matrix doesn't have full rank, this method make it possible to design H$_{\infty}$ controller and deal with R and S matrices for reducing its order. Consequently, this paper shows that the re-analyses on the real disturbances are achieved and the proposed robust controller for them has better disturbance attenuation and tracking performance. This paper contributes the applicability of reduced order H$_{\infty}$ controller to real system by handling LMI..

• 영미문화
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• 제9권1호
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• pp.1-25
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• 2009

This paper attempts to illuminate the significance of the myth or mythical method used in The Waste Land, which Eliot adapted from Jessie L. Weston's From Rituals to Romance and Sir James Frazer's Golden Bough. While he was composing a modern epic, James Joyce's Ulysses and Igor Stravinsky's Le Sacre du Printemps made him sure that the mythical method would be the best way to make the non-relational and chaotic modern world into a work of art. Although he accepted F. H. Bradley's epistemology that one's actual experience is non-relational, he strongly put an emphasis on 'the unified sensibility' in John Donne's poetry with which a poet changes all the dissociated material into art. He also found another effective method to give the chaotic experiences an order, and to make them modern art: the mythical method in his contemporary anthropology. With the mythical method he incorporated the various barren, horrible and ugly aspects of modern world into a new unity in The Waste Land. In addition, he embraced his contemporary anthropological theory that a primitive life described in myths is a culture just different from modern culture, and heartily employed some aspects of primitive culture to make modern poetry as well as modern culture rich and exuberant.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.477-477
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• 2000

A multifunctional sensor is designed to measure viscosity, cleanness, temperature and capacitance of engine oil to make a clear decision on its condition. The simple structure helps easy fabrication and low cost while measuring four parameters by one sensor. The operation is described theoretically and is supported by experimental data. A fuzzy based algorithm to fuse the four kinds of data from multi-functional sensor in order to make a decision on the best time to change the oil is proposed.