• 한국광학회지
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• 제19권6호
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• pp.429-434
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• 2008

비대칭 이중-금속 장거리 표면-플라즈몬 구조는 두 금속 사이에 위치한 코어 유전체 층의 굴절률을 임의로 선택하여도 장거리 표면-플라즈몬 모드가 존재한다는 장점이 있다. 도파로의 코어 층에 격자를 형성함으로써 플라즈몬 밴드-갭에 기초한 통신대역 파장에서의 장거리 표면-플라즈몬 파장필터를 구현하였다. Method of Line과 전달행렬방법 등을 통해 장거리 표면-플라즈몬 모드의 유효굴절률, 모드 특성, 투과도 등의 분석을 통해 설계하였으며, 도파로의 코어 층에 홀로그램 리소 방식을 이용하여 523.3 nm 주기의 브래그격자를 형성하여 파장필터를 제작하여 통신대역인 1541 nm 파장에서 대략 2 nm의 반치폭과 50 dB 이상의 파장 소광률을 확인하였다. 본 연구에서 제안한 파장필터는 표면-플라즈몬 집적회로를 구성하는 소자로써 중요한 역할을 할 것이다.

• 천문학회지
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• 제36권spc1호
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• pp.83-91
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• 2003

There are terrestrial signatures of the solar activity cycle in ice core data (Ram & Stoltz 1999), but the variations in the sun's irradiance over the cycle seem too small to account for the signature (Lean 1997; Goode & Dziembowski 2003). Thus, one would expect that the signature must arise from an indirect effect(s) of solar activity. Such an indirect effect would be expected to manifest itself in the earth's reflectance. Further, the earth's climate depends directly on the albedo. Continuous observations of the earthshine have been carried out from Big Bear Solar Observatory since December 1998, with some more sporadic measurements made during the years 1994 and 1995. We have determined the annual albedos both from our observations and from simulations utilizing the Earth Radiation Budget Experiment (ERBE) scene model and various datasets for the cloud cover, as well as snow and ice cover. With these, we look for inter-annual and longer-term changes in the earth's total reflectance, or Bond albedo. We find that both our observations and simulations indicate that the albedo was significantly higher during 1994-1995 (activity minimum) than for the more recent period covering 1999-2001 (activity maximum). However, the sizes of the changes seem somewhat discrepant. Possible indirect solar influences on the earth's Bond albedo are discussed to emphasize that our earthshine data are already sufficiently precise to detect, if they occur, any meaningful changes in the earth's reflectance. Still greater precision will occur as we expand our single site observations to a global network.

• 환경영향평가
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• 제17권2호
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• pp.133-141
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• 2008

The loss, alteration, and fragmentation of habitat have led to a reduction of biodiversity. The growing awareness of the negative effects of habitat fragmentation on natural systems has resulted in conservation strategy that is concerned with not only population and habitat level but also ecosystem and landscape level. Especially, ecological network to link core areas or major habitat patches is one of the most important issues. Recently, landscape connectivity is increasingly used in decision making for fragmented landscape management in order to conserve the biodiversity in the regional scale. The objective of this study was to find potential forest as a ecological corridor in Go-yang city, Gyung-gi province using cost-distance modelling method that can measure connectivity based on animal movement. 'Least cost-distance' modelling based on functional connectivity can be useful to establish ecological network and biodiversity conservation plan. This method calculates the distance modified with the cost to move between habitat patches based on detailed geographical information on the landscape as well as behavioural aspects of the animal movement. The least cost-distance models are based on two biologically assumptions: (1) dispersers have complete knowledge of their surroundings, and (2) they do select the least cost route from this information. As a result of this study, we can find wildlife moving route for biodiversity conservation. The result is very useful for long-term aspect of biodiversity conservation plan in regional scale, because this is reflection of geographical information and behavioural aspects of the animal movement.

• 한국초등수학교육학회지
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• 제21권2호
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• pp.391-414
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• 2017

본 연구에서는 초등학교 6학년 학생들이 교육과정에서 제시하는 확률과 통계에 대해 얼마나 이해하고 있는지 진단하고 통계적 소양과 어떻게 관련되는지에 대해 알아보았다. 그래서 통계적 소양의 이론적 틀을 분석하고, 교과서 내용과 연관되는 요소를 찾아보고 이를 바탕으로 확률과 통계의 내용에 대한 성취 정도와 통계적 소양을 측정하였다. 이를 통해 초등 6학년의 통계적 소양과 관련하여 우리나라 교육과정에서 보완해야 될 요소를 알아보았다.

• 한국의상디자인학회지
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• 제7권2호
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• pp.101-110
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• 2005

Vivienne Westwood could be placed in a unique position in the contemporary fashion design. She has never belonged in a core group of mainstream fashion designer but not been always in an outsider position. She got from mainstream fashion designer circles enormous appreciation, even established fashion industry was influenced by her fashion design. She began her fashion design with rebellious T-shirts like 'destroy' T-shirt, chicken-bone T-shirt, and nipple-zipper T-shirt, all of which revealed her disgust against establishment. All these T-shirts testify her total negation tendency in her youth. However, she did not continue to keep such a kind of total negation attitude against establishment In 1980s she changed her political attitude towards establishment, and this change also found a reflection in her fashion design. In her pirate-collection the dark image of her fashion in the 1970s changed into a totally different bright image with full of gold colour. Although this collection had radiated brightness, it contained still outsider character from mainstream fashion design. The following fashion design in 1980s and 1990s evolved further on the line of Pirate-collection, but they continued to contain certain outsider characteristics. Vivienne Westwood kept some kind of anti-establishment attitude, and this attitude more or little came to the surface of her design. She was always political and critical to the establishment. In 2005, in her 64, she designed a liberty T-shirt, which showed her political attitude and her engagement in social issues. Also it showed the change from the early total negation to the constructive critical affirmation. In this paper the relation between the fashion design of Vivienne Westwood and her political attitude and the influence of her political attitude to her fashion design is analyzed.

• 한국초등과학교육학회지:초등과학교육
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• 제32권1호
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• pp.104-112
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• 2013

We examined the strategies to stimulate the reflective thinking using science notebook for the improvement of problem solving ability which is one of the core skills for the future. The strategies we derived have four steps which are input, output, solving mission and reflection as my own mirror. We applied the strategies to the 6th grade class for autumn semester in order to examine the students learning process and the result. We could observe that students looked into their own learning and had a time to look back their activities in the class. We could also confirmed that science notebook would be effective to improve the problem solving as stimulating the reflective thinking. In addition, we could specify the strategy of using science notebook in the class. At a 'input' stage, students should be able to choose their own learning style as their preference and teacher need to give them proper feedback. Interaction with peers should be emphasized during the activities as 'question attack' and 'question defense' in 'output' stage and 'solving mission' stage. You should suggest the students various method to record their thought from looking back their classroom activities instead of mere writing. We also examine the students achievement from the students' notebook and Meta Cognitive Awareness test. As a result, students who had studied using science notebook showed statistically meaningful higher achievement than controlled students.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2006년도 추계학술대회
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• pp.50-53
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• 2006

Regional geophysical surveys and geological cal studies on natural gas hydrate (NGH) in the East Sea were carried out by the Korea Institute of Geoscience and Mineral Resources (KIGAM) from 2000 to 2004. 16 piston cores, 2270 L-km of multi-channel reflection seismic (MCRS) data and 730 L-km of 3.5kHz Chirp data obtained from the southwestern part of the deep-water Ulleung Basin were analyzed in this study. In piston cores, cracks generally developed parallel to bedding suggest significant gas content. The core analyses showed high total organic carbon (TOC) content, sedimentation rate and heat flow of sediments. These are in favor of the general ion of substantial biogenic methane, which can form the NGH within the stability zone of the near seafloor sediments in the study area. The cores generally show also high residual hydrocarbon gas concentrations for the formation of natural gas hydrates The geophysical indicators of the presence of gas and/or NGH such as bottom simulating reflectors (BSRs), seismic blank Bones, pockmarks and gas seeping features were well defined on the MCRS and Chirp data.

• 한국콘텐츠학회논문지
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• 제18권9호
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• pp.521-534
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• 2018

본 연구는 부모가 갖추고 있어야 하는 인성덕목은 무엇인가에 대하여 <사소절>을 통해서 논의해 보았다. 본 연구는 두 가지의 연구문제로 진행되었다. 조선 후기 규범서인 이덕무의 "사소절"에 나타난 부모인성 덕목은 어떠한 내용인가? 부모인성은 어떠한 현대적 의미를 갖고 있는가? 연구결과 아버지의 인성은 '안정과 온화함', '신뢰와 절제', '이해와 배려'로 나타났고, 어머니의 인성은 '공순과 화순', '책임', '이해와 배려'로 나타났다. 이 내용의 현대적 의의는, 첫째, 부모인성덕목은 보고 배우는 학습을 통해서 계승된다. 둘째, 언행을 통해서 표현된다. 셋째, 가족윤리로 강조된다. 넷째 오늘날 인성교육진흥법에 포함되어 있는 인성핵심덕목과 연계성을 갖고 있다는 것이다. 따라서 자녀인성교육에 앞서서 부모인성에 대한 반성이 필요하며, 부모들은 다음 세대를 위한 인성교육을 위해서도 스스로의 인성을 함양하도록 적극 노력해야 한다.

• 간호행정학회지
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• 제19권1호
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• pp.95-107
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• 2013

Purpose: The purpose of this study was to examine the effectiveness of Action Research (AR) approach in nursing. Methods: Participants were 64 perioperative nurses recruited from C hospital in Gwangju, Korea. The nurses were engaged in the project through 2 cycles of planning, acting, observing, and reflecting. A mixed-methods design was used to examine changes in participants and their knowledge management practice. Quantitative data were analyzed using SPSS 20.0 program and qualitative reflection data underwent content analysis. Results: During the project, participants developed standardized pre-operative checklists and opened an Internet Cafe to better manage their perioperative nursing information. At the end of the project, there was a significant increase in nurses' knowledge management (p=.015) and the rate of surgical material prescription errors decreased from 8.0% to 2.9%. Core AR project team members' teamwork skills and organizational commitment increased significantly (p=.040, p=.301, respectively). The main themes that emerged from the qualitative data were learning how to solve problems in practice, facilitating team activities through motivation, barriers of large participation, and rewarded efforts and inflated expectations. Conclusion: The AR project contributed to empowering participants to solve local problems. AR is a useful methodology to promote changes in practices and research participants.

• 대한간호학회지
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• 제41권2호
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• pp.225-235
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• 2011

Purpose: To describe psychosocial adjustment of low-income Koreans who have cancer. Methods: Data were collected during 2008 using individual in-depth interviews with 18 Korean people with cancer. The income status of the participants was low, 11 were recipients of the National Basic Livelihood Protection program. Mean age was 58.3 yr and 11 were female. Five participants had stomach cancer, five, colorectal cancer, and four, breast cancer. Data were analyzed using grounded theory methodology. Results: The core category emerged as 'bearing up alone with double suffering'. 'Poverty and cancer: A double suffering' emerged as a causal condition. The adjustment process consisted of three stages: 'forming a treatment will to live', 'practicing for the cure', and 'restructuring self and repaying favors'. Each stage indicated action-interaction strategies which were employed to bear up alone with double suffering during the illness process. Self-reflection, parental responsibility, and support from the public sector played important roles in overcoming the double suffering. Two types of consequences were identified: Transcended life and strained life suppressed by poverty and cancer. Conclusion: The results provide insights into the psychosocial adjustment process for low income Korean with cancer and can be used in developing and implementing efficient home-care services for these people.