• 한국ITS학회 논문지
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• 제16권2호
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• pp.92-104
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• 2017

기존의 도로교통의 속도관리 목표는 이동성 및 안전성 개선을 목표로 운영되어 왔으며, 환경적 측면과 에너지 효율 측면에 대한 고려는 미미하였다. 하지만, 최근 들어 기후변화로 인한 경제적 피해규모가 증가하고 있으며, 외부적 여건변화에 따라 환경가치는 상승할 것으로 예상된다. 또한, 교통부문에서의 탄소배출량 저감정책은 개인교통수단에서 대중교통으로 의 전환 및 친환경자동차 개발에만 집중되어있어 상대적으로 도로운영의 개선을 통한 저감 노력이 부족하다는 평가를 받았다. 향후 우리나라의 자동차 보유대수는 증가할 것으로 예상되므로 이에 대한 적응전략 및 대비책이 필요한 시점이다. 이를 위해서는 기존의 이동성 중심의 도로운영 정책에서 환경측면을 고려한 정책으로, 도로운영의 패러다임 전환을 통해 구현할 수 있을 것으로 판단된다. 교통운영 측면에서 온실가스 배출량을 저감하기 위해서는 현재 도로상에서 어느 정도 온실가스가 배출되는지를 실시간으로 모니터링 할 수 있어야 한다. 본 연구에서는 실시간으로 수집되는 교통자료를 이용하여 5분 후의 상태를 예측하고 이를 통해 실시간 온실가스 배출량 모니터링 시스템을 구축할 수 있는 방법론을 제안하였다.

• 폴리머
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• 제30권5호
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• pp.385-390
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• 2006

본 연구는 폴리(메틸 메타크릴레이트)(PMMA)에 탄소나노섬유(CNF)의 함량을 달리하여 만든 CNF/PMMA 나노복합재료의 열적 및 마찰 마모 거동에 관하여 고찰하였다. CNF/PMMA의 열적특성은 시차주사열량계 (DSC)와 열중량 분석기 (TGA), 그리고 동적기계분석기(DMA)를 이용하여 고찰하였으며, 마찰 마모 거동은 마찰마모 시험기 (wow tester)를 이용하여 측정하였다. 결과로서, CNF/PMMA 복합재료의 Tg와 integral procedural decomposition temperature(IPDT), storage modulus (E'), 그리고 tan ${\delta}$의 값은 CNF의 함량이 증가함에 따라 증가하였으며, 마찰계수와 마모량은 CNF 함량 0.1 wt%에서는 감소하였다가 CNF 함량 5-10 wt%에는 점차적으로 증가하는 경향을 나타냈다. 이는 PMMA에 세장비 (aspect ratio)가 큰 CNF가 강화제로 첨가됨에 따라 고분자 사슬의 정렬이 일어나며 또한 수지 내에서 기계적 얽힘(mechanical interlocking) 현상이 증가하여 전체적으로 가교화된 구조를 형성하였기 때문이라 판단된다.

• 비교문화연구
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• 제42권
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• pp.343-369
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• 2016

이 글은 신상옥이 남북한에서 각각 연출한 "춘향전" 원작 영화들을 '몽룡' 캐릭터에 주목해 분석하려는 시도다. 사실상 그들 영화는 남북한 정치사의 체제 전환기에 등장했다. 대한민국에서 연출한 <성춘향>은 이승만 정권이 붕괴한 이후, 제2공화국 시기에 제작되었고, 북한에서 연출한 <사랑 사랑 내 사랑>은 김일성에서 김정일로의 권력 이양기에 제작되었다. 그러한 정치사적 변화에 주목해 보면, 몽룡의 성격화 과정에 당대 남북한 사회가 배태한 '권력자상'이 읽힌다고 할 것이다. 먼저 <성춘향> 속 몽룡은 춘향의 헌신적 포용과 희생에 낭만적 순정으로 보은하는 사적 연인의 이미지가 강하다. 몽룡에게서 권력자로서의 면모를 읽는다면, 민주적 지도자, 혹은 조정자의 이미지를 검출할 수 있겠다. 반면, <사랑 사랑 내 사랑> 속 몽룡은 계급혁명을 완수하는 영웅적 권력자의 이미지가 강하다. 민중의 열망을 수렴해 애민선처의 정신을 실천하는 전복적 개혁가로서의 성격이 두드러지는 것이다. 이 연구를 통해 고전을 원작으로 한 흥행 영화들이 공시적 조건에서 지니는 의미를 비교 분석하는 연구들이 확산되길 기대한다.

• 한국국방경영분석학회지
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• 제17권2호
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• pp.1-15
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• 1991

If one were to say that war is political in its nature, then war could be one of the several ways of achieving political goals. Thus, the aspect of wars will, in certainty, be altered by the changes in political environment. Wars in the past broke out mainly due to ideological differences that ran to extremes and were of high intensity. However, wars today show such restraints as controlling them beforehand or during the war in anticipation of the post-war situation. The trend of ideas to actualize such wars in the effective operation of airpower is on the rise. Airpower normally possesses speed and operative flexibility as well as capability of destruction, so it is possible to destroy the politically declared targets clearly. Previous airpower was merely employed as means of helping to vertically detouring the spatial obstacle that the ground forces encountered. Over the years, due to the speedy improvement of aviation technology and of ideas concerning wars in space, more advanced application has been developed. but they also were nothing more than an auxiliary role to facilotate the ground forces, that needed a longer effective range of firepower and did not become forces with the right of self-determination, that is, the fact of decisive war that makes its outcome. However, under transitional strategic environment like that of the present, Airpower possesses not only the capability to operate as a decisive means of war but also as theories to support it. The advancement in air technology has enabled supremacy over targets in depth, and the development of electronic technology has empowered the improvement of degree of destruction but also triumphant war by means of an overwhelming supremacy in a relatively short period. Thus, the method of systematic destruction that accomplishes the stated goals while rejecting the damage of accumulative destruction has been realized. The progress of such a concept has also proved that the counter-force strategy that has been developed in nuclear strategy is useful in conventional warfare as well. Therefore, it can be said that the under today's strategic environment airpower is an outstanding means of military strategy that can deeply affect to achieve the national objectives.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제33권3호
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• pp.255-273
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• 2019

소수의 개념적 측면에 대한 학생들의 이해 부족 현상이 목격되는바 본 연구는 학생들이 소수 개념의 본질을 바르게 이해하도록 돕고자, 소수 개념 발전 역사를 조망하고 교과서의 개념 도입 방법을 분석하였다. 고대 그리스에서 소수는 곱셈 원자였다. 당시 단위는 수가 아니었지만, 소수 표기 개발로 단위가 수로 통합되면서 1의 소수성이 문제시 되었다. 소인수분해의 유일성을 근거로 1이 소수에서 배제되었으며, 이후 발전을 거듭하여 prime 개념과 irreducible 개념이 자리 잡게 되었다. 소수 개념 발전의 역사는 소수가 곧 곱셈 원자라는 사실이 개념의 본질임을 명백히 드러낸다. 교과서 분석 결과, 교과서는 소수 개념을 결정론적 시각 혹은 게임으로 도입하여 개념 본질을 드러내지 못하는 문제, 개념 도입 후 분석적 개념 정의로 급진적 전개가 이루어지는 문제 등이 있었다. 분석 결과에 기초하여 소수의 개념적 면에 주목하도록 돕는 것과 관련하여 몇 가지 교수학적 시사점을 제공하였다.

• 한국의류학회지
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• 제35권2호
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• pp.167-180
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• 2011

The portraits created in the age of Queen Elizabeth I show a very exquisite description about the ruff collar and cuffs representing the notable evolution of periodical costumes from a detailed viewpoint. This thesis analyzes the ruff collar and cuffs of the portraits of Queen Elizabeth I. The method used selects 32 pieces from the portraits of Queen Elizabeth I that are considered excellent depictions of a ruff collar and cuffs, to investigate size, form and decorations. Conclusively, the ruff collar tends to be extremely enlarged and thickened (coinciding with the development of glue) while the cuffs denote the aspect of double cuffs coupled with the turn-back cuffs without a change in size. These traits were widely shown from 1585 to 1587, while after 1588 the ruff cuffs completely disappeared in the portraits of Elizabeth I. At the same time, the change of a ruff collar was remarkable, the collar being in the erect position behind the head (with the use of supporters), of a consistent thickness and decoration of elaborate lace. During the transition period from the $16^{th}$ century to the $17^{th}$ century the earliest change was in cuffs followed by collars. This research is a helpful guide to detect the relatively exact date of portraits not definitively identified in the latter part of the $16^{th}$ century and to observe the microscopic evolution of costumes in the latter part of the $16^{th}$ century.

• 한국지형학회지
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• 제21권4호
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• pp.109-120
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• 2014

강의 상류부에서도 사력퇴가 잘 발달한 홍천강의 상류 유역 중 하나인 두촌천 유역을 대상으로 역과 모래를 분석하였다. 이를 통해 각 구간별 사력퇴의 발달 양상과 퇴적물의 차이를 비교해 보고 상류에서 하류로 이동되는 퇴적물의 변화양상을 살펴봄으로써 소유역 내에서도 다양하게 나타나는 하천의 지형발달 특색을 파악하고자 하였다. 역 분석 결과, 하류로 갈수록 화강암과 편마암 역이 공급되면서 원마도와 편평도가 증감을 반복하는 불규칙한 변화 경향을 보였다. 모래의 입도 변화는 전체적으로 중 조립사의 비율이 매우 높았으나, 화강암 지대를 흐르는 지류 합류점이 편마암 지대 합류점에 비해 다소 입경이 증가하는 경향을 보였다.

• 한국주거학회논문집
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• 제26권2호
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• pp.1-12
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• 2015

The era of globalization has ushered in dramatic changes in the past decade covering a wide range of distinct political, economic and cultural trends whereby people adapt their houses to suit their needs and desires. This paper discusses the process of change analytically, emphasizing the importance of understanding the transformation of Lao traditional houses and its impact factors to the transformation and adaptation to suit with globalization trend, and conservation of the characteristics of traditional houses. This study takes place in Luangprabang, an ancient city of Lao PDR, which was designated as a world heritage city in 1995 as it is rich with diverse, tangible and intangible values. Five cases of traditional house in Luangprabang are examined to understand their transformation through time, by analyzing the basic spatial formation, components and elements, especially to find out the impact factors to such transformation. The study revealed that the transformation of the traditional house is subject to not just one single factor, but to a number of factors, where globalization, regulation, economy, and social aspect factors play a prime role and are the root for all these changes. The case study also indicates that these changes are connected to the benefits of income generation as a survival strategy for the low and middle-income people in Luangprabang as well as the housing demands. In the transition period a new residential type appeared accordingly, in which living spaces were categorized according to their general functions. There was a harmony between people's needs and the physical characteristics of the house.

• 한국초등과학교육학회지:초등과학교육
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• 제31권4호
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• pp.513-531
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• 2012

This study was to analyze the characteristic of scientific argumentation in the classes for the gifted of elementary school. The participants of this study were 5 fifth graders and 9 sixth graders, 14 in total, from the basic unit schools for gifted students of J elementary school in Incheon city. And it constituted small scale groups made up of 2~3 students with similar or identical ability in scientific reasoning. It had set up hypothesis for each group before the experiment, and students had a group discussion as a whole after the experiment. Classes were conducted 4 times, all courses were recorded as a sound/video. The ability in scientific reasoning of the students was inspected, making use of SRT II by means of pre-survey, and their argumentation levels were analyzed, utilizing 'Rubric for scientific argumentation course assessment.' As a result, argumentations did not incurred in every class. Analysis in argumentations of the students resulted in low level argumentation. This means argumentation cannot incur based on that with the limit in understanding the principle of experiments over the threshold of textbook no matter that he is an gifted student or not. The student both in formal operational period and transition period (2B/3A), the ability of scientific thinking in upper level, was improved of his argumentative ability in an overall aspect. However, a student of concrete operational period, the ability of scientific thinking in lower level, had argumentation with still lower level even after the experiment at the moment of discussing with the students on the upper level of scientific thinking ability.

• 복식
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• 제37권
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• pp.133-148
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• 1998

This study presents the aspects and changing process of the habiliment from the National Liberation up to now by analyzing the articles of costume found in$\ulcorner$Maeil Shinmun$\lrcorner$from Jan. 1. 1946 to Dec. 31. 1996. In the period of 1946~1959, the political and economic conditions through the National Liberation and Korean war deteriorated and the interest in costumes were weakened. But the economic recovery and social stability in the middle of the 50's made the lost interest in costumes increase. From 1960 to 1969, the high economic growth was achieved by“Five year plans for Economic Development”and the progress of mass media, transportation, communication and education brought western culture to our society. It spread rapidly and changed the way of life and the sence of value. These phenomenon led to a great transition on the Korean costume culture in the 60's In 1970~1979, the articless of costume made a change from the 60's, which focused on women's wear, and tuned to one including general costumes not only women's wear but also men's wear due to the women's social roles, the unisexmode and diverse costume. In 1980~1989, the growth of the consumption, the banning of the school uniform, Asian Games(1986) and Olympic games(1988) caused the high qualification, personalization and diversification in the fashion industry. Further more, the traditional-oriented trend with korean culture was emphasized. It pursued the modernization of the traditional Korean Costume, Hanbok, to introduce the unique Korean Beauty. From 1990 to 1996, in the era of international-ization and open door policy, the competition of nations became intense and the comprehention about environmental destruction highlingted the concerns on ecology. The recognition of environmental protection and recycling were reflected in the fashion. It prevailed that the pursuit of personalization,. diverse style, practicality and the fashion leader called generation appeared.