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귀하식물, 가시상추(Lactuca serriola)의 서식환경
배진화,이종운 嶺南大學校 基礎科學硏究所 1996 基礎科學硏究 Vol.16 No.-
귀하식물, 가시상추가 형성하는 군락구조와 무기환경요인을 연구하였다. 가시상추의 군락은 Kummerovia stipulacea, Setaria viridis, Ambrosia artemisiifolia, Youngia sonchifolia, Cephalonoplos segetum, Lactuca indica, Ixeris chinensis, Cosmos bipinnatus등이 우점하고 있었다. 서식지의 토양환경은 pH 7.8의 약알칼리였으며 높은 유기물 함량과 낮은 중금속 함량을 보였다. 따라서 전령적인 황지식물의 특성을 보였다. 종자의 발아조건은 pH 2.6 이상이었고, 생장조절상에서 확인한 유묘의 제한요인에 의한 피해는 광도 500 Lux, pH 6, 일시위조점 pF 2.0, 영구위조점은 pF 2.5이었다. Biotic community structures and abiotic environmental factors of a neophyte, prickly lettuce, were studied. The community was composed of dominant species of Kummerovia stipulacea, Setaria viridis, Ambrosia artemisiifolia, Youngia sonchifolia, Cephalonoplos segetum, Lactuca indica, Ixeris chinensis and Cosmos bipinnatus. The habitat soil was slightly alkaline with pH 7.8, high organic matter contents, and low in heavy metal contents. Therefore, it showed typical characteristics of the ruderal environment. The seeds were germinated in the condition of above pH 2.6 and injuries of the seedling by the limiting factors in the controlled environment chamber occurred at 500 Lux of light intensity, pH 6.0, tempory wilting point of pF 2.0 and permanent wilting point of pF 2.5.
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실리콘 수지조성물 코팅에 따른 실리카 직물의 방화 성능
라해준,배진화,안승국,Na, Hae-Joon,Bae, Jin-Hwa,An, Seung-Kook 한국섬유공학회 2011 한국섬유공학회지 Vol.48 No.4
High-temperature fire-resistant materials are required to enhance the fire-related safety of high story buildings. In this study, the thermal protection performance of protective textiles was evaluated, and these materials were based on silica fabrics coated with silicon resins of different formulations. The fabrics with larger coating thickness had higher $t_{12}$ and HTI values, as expectedly. In addition to the positive effect seen after vermiculite addition, the addition of aerogels in to the coating resin improved substantially the fire-proofing performance, even in very small amounts. However, the small additions to the resin caused a rapid rise in resin viscosity and caused spreading problems on the silica fabrics. Therefore, toluene was required as a solvent. All coated samples showed very high thermal stability with very small volume decreases even at temperatures as high as $900^{\circ}C$. The coated silica fabrics with silicon resin are expected to be used as screen shutters in the case of fire.
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이종록,裵珍和 梨花女子大學校 韓國生活科學硏究院 1990 韓國生活科學硏究院 論叢 Vol.45 No.-
3성분계 유리 반도체 Ge_(40-x)Sb_xSe_60(x=0, 8, 12, 18, at.%)박막 시료를 thermal evaporation 방법에 의해 제작한 다음 직류 전기 전도도, 광 전기 전도도, 광 흡수도를 측정하였다. X-선 회절 실험에 의해 각 시료는 비정질임이 확인되었다. 직류 전기 전도도는 173K∼423K 온도 범위에서, σ=σ_0 exp(-△Ea/KT)에 따르는 band전도가 지배적이며, 그 값은 1.0×10 exp (-7)∼2.1×10(Ω^-1 ㎝^-1)로 나타난다. Ge_32Sb_8Se_60시료가 가장 높은 직류 전기 전도도를 보인다. 각 시료의 활성화 에너지 △Ea는 0.29∼0.67eV이며, Ge_32Sb_8Se_60시료가 가장 낮은 활성화 에너지를 보인다. 이로서 활성화 에너지가 낮을수록 전도가 잘 일어남을 알 수 있다. 광 전기 전도도는 8.29×10 exp (-4)∼2.76×10 exp (-1)(Ω^-1 ㎝^-1)이며, Ge_32Sb_8Se_60시료가 가장 높은 광 전기 전도도를 보인다. 이로서, Ge_32Sb_8Se_60시료가 가장 많은 D^-결함을 가지는 것으로 추정된다. 광학적 에너지 갭은 0.77eV∼1.13eV이며, 광학적 에너지 갭과 활성화 에너지의 차는, 조성비에 관계 없이 0.45∼0.48eV로서 거의 일정하다. D.C. electrical conductivity, optical absorption, and photoconductivity experiments on glassy semiconductor Ge_(40-x)Sb_xSe_60, for which X concentrations are 0, 8, 12, 18 at% are investigated. By the results of X-ray diffraction experiment, it was convinced that all samples were confirmed as amorphous semiconductor. Over the temperature range from 173K to 423K, the D.C. conductivities of the investigated samples are the form of σ=σ_0 exp(-△Ea/KT) and the values are 1.0×10 exp (-7)(Ω^-1 ㎝^-1)-2.1×10(Ω^-1 ㎝^-1). The sample of Ge-Sb-Se has the highest value in D.C. conductivity. The activation energies of the investigated samples are 0.29-0.67(eV) and the lowest value is appeard in Ge_32 Sb_8 Se_60 firm. The photoconductivities of the samples are 8.29×10 exp (-4)-2.76×10 exp (-1)(Ω^-1 ㎝^-1). The optical energy gaps of the samples are 0.77-1.13(eV). It is shown that the value of difference Eg(the optical energy gap)-Ea(the activation energy) is independent of the compositions.
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이혜선,육성필,배진화,안창일 한국심리학회 2008 한국심리학회지 일반 Vol.27 No.2
The purpose of this paper is to review preceding researches on the terms and definitions of suicide-related behaviors and to introduce the nomenclature and classification for suicidology. We hope it could enhance the clarity in communication among researchers, clinicians, and therapists who work with suicidal person, and improve studies on suicide in Korea. The terms in the suicidal researches are used without clear definition. The term such as ‘Suicide Attempt’ can be used as different meaning among study participants. The complexity, variability, and multi-dimensionality of suicide require the nomenclature and classification of suicide-related behaviors which are able to specify the subtype of suicide and to include all the suicide-related behaviors. We investigated the definitions of suicide-related behaviors, the nomenclature and classification of suicidology and suggested Korean terms. We also present advantages of the Silverman et al. nomenclatures and classification(2007) and our comments. 본 논문은 자살관련개념에 관한 선행 연구를 살펴보고 자살관련행동의 정의와 체계적인 명명법을 제시함으로서 연구자 및 치료자 간의 의사소통의 정확성과 명료함을 향상시키고 나아가 자살관련연구를 발전시키고자 하는 의도를 담은 문헌연구다. 현재 자살관련행동을 명명하는 용어들은 그 의미가 불분명한 상태에서 사용되고 있어 임의로 해석될 여지가 있다. 자살관련행동을 정확하게 정의하지 않은 경우, ‘자살시도’로 분류했지만 자살을 시도한 것으로 볼 수 없는 경우나 ‘자살생각’이라고 분류했지만 자살생각이 아닌 경우가 혼입될 수 있다. 자살은 복잡하고 다양하며 다차원적이기 때문에 자살의 연구는 이러한 복잡한 현상을 담아낼 수 있으면서 동시에 적절한 방식으로 분류할 수 있는 명칭과 체계가 필요하다. 본 논문은 그동안 자살을 연구해 온 학자들이 자신의 이론과 주장을 펼치기 위해 사용한 수많은 자살관련용어들을 정리하여 그 의미를 분명히 하였고, 한국어 명칭을 제안하였으며, 자살관련행동의 분류를 위한 그간의 시도를 정리하고, 마지막으로 Silverman 등(2007)의 분류체계의 유용성과 문제점을 제시하였다.
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박정환(Park Jeong-Whan),배진화(Bae Jin-Hwa),천태일(Chun Tae-Il),안승국(An Seung-Kook) 한복문화학회 2009 韓服文化 Vol.12 No.2
The purpose of this paper is to analyze and discuss the influence of the mechanical properties and structural parameters of the cotton fabrics for Saeng-hawl Hanbok to the sew-ability and TAV(Total Appearance Value). The cotton fabrics for Saeng-hawl Hanbok were woven in several conditions , such as yarn count, cloth density and weave. The mechanical properties of the cotton fabrics for Saeng-hawl Hanbok had been evaluated by KES-F System. And the sewability and TAV(Total Appearance Value) of the woven fabrics for Saeng-hawl Hanbok had been calculated from mechanical properties of fabrics by using developed equation by Kawabata. And then, the sew-ability and TAV(Total Appearance Value) of the woven fabrics for Saeng-hawl Hanbok have been analyzed according to the fabric structural parameters, such as, yarn count, cloth density and weave structure. According to the obtained results, the TAV and sew-ability increased with the increase of weft yarn count and decreased with the increase of cloth density. And the TAV and sew-ability of satin fabrics were shown as the highest values.
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박정환(Park Jeong-Whan),배진화(Bae Jin-Hwa),안승국(An Seung-Kook) 한복문화학회 2008 韓服文化 Vol.11 No.2
Drape is the one of the important factors influencing to the aesthetics and functionality of fabrics. In this study, the behaviours of the static and dynamic drape of woven fabrics for Saeng-hwal Hanbok have been analyzed according to the fabric structural parameters such as the weft density and weave structure. The static drape properties have effects on the bending properties and shear properties. And also the dynamic drape coefficients have great effects on the bending properties and shear properties at the lower speed of dynamic drape speed. But there is less effect at (with) the higher speed of dynamic drape tester.
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