• 대한기계학회논문집 C: 기술과 교육
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• 제1권2호
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• pp.211-219
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• 2013

기후가 무덥고 습해지면서 제습기의 사용이 증가하고 있지만, 제습기의 에너지 소비가 크고, 전기제품의 사용 증가로 인하여 전력이 부족하기에 제습기의 사용이 보편화되지 못 하고 있다. 제습기술은 오랜 시간 동안 최적화된 기술로써 기존기술을 바탕으로 에너지 효율을 높이는 데에는 한계에 도달했다고 볼 수 있다. 하지만, 높은 에너지 효율, 즉 소비전력이 낮으면서 제습성능이 높은 제습기의 개발 요구가 계속되고 있고, 그 해답은 자연모사기술에서 찾을 수 있다. 이 논문에서는 상용품인 제습기의 소비전력을 분석하고 자연에서 무동력으로 공기 중의 수분을 포집하는 딱정벌레 등껍질이나 식물들로부터 영감을 얻어 에너지 효율을 증가시킬 수 있는 아이디어를 살펴보고자 한다.

• 한국의류학회지
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• 제28권9_10호
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• pp.1231-1241
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• 2004

The purpose of this study was to investigate the musicians' body image and fashion styles portrayed in Korea and American music' video in aspects of body dimension such as sex, race, nature, and technology. The results were as follows. In aspects of sex, male musicians showed the blurring of gender appearance, while female musicians reflected sexuality which intensified the gender norms. In aspects of race, musicians pursued the racial blending appearances. In nature and technology dimension, Korea music video focused on natural imagery, while American music video showed a lot of technology imagies. And, the body combined with the nature and technology implied the post human image in the future.

• 문화기술의 융합
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• 제9권1호
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• pp.119-128
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• 2023

본 연구는 플로러닝을 기반으로 자연에 대한 인식과 활동 방법을 익히고 느낄 수 있는 자연체험활동 프로그램을 개발하여 자연체험활동을 통한 대안적 수업 모델을 제시하기 위한 목적으로 수행되었다. 연구의 목적을 달성하기 위하여 자연과 만나기, 자연 탐구하기, 자연과 온몸으로 놀기, 자연에서 느낀 감동 나누기의 네 단계가 순환적으로 이루어지는 플로러닝 자연체험활동을 기저로 하여 ADDlE 교수설계 모형의 각 단계별 주요 절차를 바탕으로 자연체험활동 프로그램 개발하였다. 연구 과정을 통하여 자연체험활동 프로그램의 각 단계별 활동 및 유의사항에 대해 제시하였으며, 개발된 프로그램을 바탕으로 주요 교육적 시사점을 논의하였다. 연구를 통해 개발된 자연체험활동 프로그램은 교사에게 자연체험활동 방법에 대한 인식의 전환과 더불어 자연체험활동에 대한 기본적인 방향을 제시할 수 있고, 유아는 자연체험활동 프로그램을 통하여 자연을 자유롭게 느끼고 경험하며 스스로 지식을 구성하는 학습자가 될 수 있을 것으로 기대한다.

• Bulletin of the Korean Chemical Society
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• 제31권10호
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• pp.2786-2790
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• 2010

Three new oleanane-type triterpene saponins (1, 2 and 3) were isolated from aerial parts of Gladiolus gandavensis, along with two known compounds (4 and 5). Their structures were elucidated as 29-O-($\beta$-D-glucopyranosyl)-$2{\beta}$,$3{\beta}$-dihydroxyolean-12-en-28-oicacid(1), 3-O-($\beta$-D-xylopyranosyl)-29-O-($\beta$-D-glucopyranosyl)-12-en-28-oic acid (2), and $2{\beta}$,$3{\beta}$,29-trihydroxyolean-12-en-28-oic acid 28-O-[$\beta$-D-glucopyranosyl($1{\rightarrow}2$)-($\alpha$-L-rhamnopyranosyl($1{\rightarrow}6$))-$\beta$-D-glucopyranosyl] ester (3), by spectroscopic methods, and by comparison with known analogues. These oleanane-type triterpene saponins glycosidated at C-29 were not obtained frequently.

• 아태비즈니스연구
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• 제5권1호
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• pp.23-31
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• 2014

Entrepreneurship is considered as an important driver of economic growth, new firm creation, business rejuvenation& job creation. Over a period of time research within entrepreneurship literature has shifted from entrepreneur and his personality to his behavioral disposition. This has led to emergence of entrepreneurial orientation (EO) construct, which focuses on the process of entrepreneurship at firm level and it has emerged as the most widely researched area within entrepreneurship field. Though research in this field has been rigorous and exhaustive, still there have been concerns that researchers might have prematurely agreed on the composition, dimensionality, and nature of EO Construct. There has been considerable debate about whether EO Construct comprises three or five dimensions, about co-variance or independence of these dimensions and nature of construct whether formative or reflective. This article builds an argument about the multidimensional nature of EO construct comprising five dimensions, which vary independently and the fact that EO is better explained through formative construct rather than reflective one.

• 한국과학교육학회지
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• 제34권3호
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• pp.207-212
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• 2014

The national reform document, Science for All Americans (AAAS, 1990), and the Next Generation Science Standards (NRC, 2012) emphasize the importance of the nature of science in guiding science educators in accurately portraying science to students. Therefore, it is important that textbook materials convey an accurate conception of the nature of science. This study employs content analysis to examine the content of textbooks in US and Korea elementary science textbooks with regard to the four aspects of the nature of science: (a) nature of scientific knowledge; (b) nature of scientific inquiry; (c) nature of scientific thinking; and (d) nature of interactions among science, technology, and society (Chiappetta, Fillman, & Sethna, 2004). Intercoder reliability was determined by calculating Cohen's kappa (Cohen, 1960). Findings show that while US elementary science textbooks are not balanced in presenting the four aspects of the nature of science regardless of the publishing companies, the presentation of the nature of science in Korean elementary science textbooks have better balanced treatment of the four themes across the grade levels. On the other hand, both US and Korean elementary science textbooks are attempting to convey an idea of what science is by emphasizing scientific knowledge and investigation.

• The Korean Journal of Ecology
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• 제23권4호
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• pp.339-345
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• 2000

Heilongjiang Province has set up 104 nature reserves, with a total area of 2,641,700 ha, or 5.88% of the total area of the province. These constitute a network of nature reserves comprising most important types of nature reserves. and play an active role for improving the protection of the ecological environment and for the continuous economic and social development of the province. But in the management of these nature reserves, there are still some problems with people's idea, with educating the public, and with capital investment. These problems should be treated seriously. To preserve our natural heritage and biodiversity and to promote the sustainable development of our society and economy, it is projected that by the year 2000. the number of nature reserves in Heilongjiang is to reach 109, covering 6.17% of the total land area of the province. This percentage will be further increased to 8.62% by 2010, at which time the network of nature reserves is to have a proper distribution and comprehend all the important types of nature reserves. This will ensure the healthy development of the cause of nature conservation. with systematic planning, active protection. and sustainable use, so that ecological and social benefits can be developed hand in hand with economic benefits.

• 디지털융복합연구
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• 제10권4호
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• pp.347-352
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• 2012

자연의 불확정적인 물리현상은, 감성적인 공학기술 영역뿐 아니라 및 예술의 시각표현 방법으로도 자주 연구되는 영역이다. 본 논문에서는 모더니즘 회화에서 물질의 특성을 강조한 회화작품에서 보여 지는 자연의 물리적인 현상들(스며듦, 번짐, 흐름)을 분석한 연구[1]를 Unity3D 엔진의 파티클 시스템을 이용하여 구현 가능성을 제안한다. 그리하여 그래픽스 프로그래밍 습득에 어려운 아티스트들이 수월하게 Unity3D 엔진을 이용하여 자연의 불확정적 비주얼표현 구현에 도움을 줄 수 있으며 또한 감성기반 테크놀로지를 연구하는 공학자들에게도 아이디어 제공에 도움을 줄 수 있을 것이다.

• Nuclear Engineering and Technology
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• 제50권1호
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• pp.1-17
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• 2018

This article reviews the multiscale nature of stress corrosion cracking (SCC) observed by high-resolution characterizations in austenite stainless steels and Ni-base superalloys in light water reactors (including boiling water reactors, pressurized water reactors, and supercritical water reactors) with related opinions. A new statistical summary and comparison of observed degradation phenomena at different length scales is included. The intrinsic causes of this multiscale nature of SCC are discussed based on existing evidence and related opinions, ranging from materials theory to practical processing technologies. Questions of interest are then discussed to improve bottom-up understanding of the intrinsic causes. Last, a multiscale modeling and simulation methodology is proposed as a promising interdisciplinary solution to understand the intrinsic causes of the multiscale nature of SCC in light water reactors, based on a review of related supporting application evidence.

• International Journal of Advanced Culture Technology
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• 제11권1호
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• pp.232-240
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• 2023

The ecological expression of art in modern society takes the harmonious developmental relationship between man and nature as an element and combines it with the various manifestations of painting as an expression of ecological artistic development. The necessary relationship for the harmonious development of nature is accurately articulated, and the ecological changes in people are expressed in integrated materials that inspire human reflection. In the pursuit of material pleasures, mankind is neglectful and indifferent to the environment. The development of composite painting in art and ecology is a process that more reveres the harmony between man and nature as well as satisfying the creative value of the work. After systematic evaluation and research, people have engaged in various structural forms of composite art painting development in the long history of art development, focusing on the integration of environmental and ecological culture. In the process of nature education going through development, the comprehensive practical development of nature education is enhanced and efforts are made to feel new ecological art ideas and new ways of valuing environmental protection. In this paper, an observational study of eco-art will be carried out, starting from the theory of hierarchical division and analyzing the contradictory relationship between man and nature. Recognize nature, understand it and feel it through eco-art painting. The analysis of the contradictory relationship between man and nature is combined with the identification of various types of information that give value to the environmental protection public, and the combination of ecological painting and nature art to achieve an upgrade of the environmental protection idea of the value of painting. In the development of artistic ecological comprehensive painting, it is necessary to put forward technical requirements and standards that meet the development of modern industry according to the characteristics and methods of ecological painting. The author of this paper discusses the necessity and social value of artistic ecological painting creation from the artist's point of view, expounds the practical achievements of ecological painting from the perspective of the history and present situation of the development of ecological aesthetics at home and abroad, and gives the concept and creative method of contemporary art comprehensive material painting in combination with his own actual situation.