마쇄고추를 첨가한 김치의 이화학적 성분 변화 및 관능적 특성

황성연,박소희,강근옥,이현자,복진흥 한국식생활문화학회 2005 韓國食生活文化學會誌 Vol.20 No.2

We investigated the physico-chemical and sensory characteristics of Kimchi made with red pepper that was washed and mashed. The pH of juice from Kimchi made with red pepper powder was the highest on the day of Kimchi preparation. In the case of Kimchi made with mashed red pepper, the pH of juice and liquid was lower than that of other samples. A similar decrease in pH of juice and liquid was observed up to the second week of fermentation, but the significant difference between both samples wasn't found. The total acidity of Kimchi with mashed red pepper was significantly increased during early fermentation, but was similar during the second week, compared with that of Kimchi with red pepper powder. From the third week of storage, both juice and liquid from Kimchi made with red pepper powder was relatively increased. L and a value of liquid was highest in the case of Kimchi made with mashed red pepper, but b value was lowest during fermentation. In the case of organic acids. acetic acid and lactic acid contents were increased in Kimchi made with mashed red pepper while fermentation progressed. In addition, citric acid content was constant up to the second week in Kimchi made with mashed red pepper but from the third week wasn't detected in both Kimchi made with mashed red pepper and Kimchi made with red pepper powder. In the case of QDA(Quantitative Descriptive Analysis) profiles, the values of Kimchi made with mashed red pepper were significantly higher than those of Kimchi made with red pepper powder in respect to redness, pungency and fresh flavor immediately after the preparation of Kimchi and during the second week of fermentation, but during the fifth week the values were higher in respect to redness and fresh flavor of Kimchi. Appearance and overall acceptability was remarkably increased in Kimchi made with mashed red pepper, compared with that of Kimchi made with red pepper powder immediately after pickling, during the second and the fifth week of fermentation. Therefore, these results indicate that mashed red pepper increased more citric acid content, L and a value of Kimchi in comparison with red pepper powder, resulting in the good effects on overall acceptability due to the significant increase of redness and fresh flover.

Binding Energy of Oxigen and Methane Adsorbed on Bundles of Open-Ended Single-Wall Carbon Nanotubes

서주연,유대황,곽진성,황윤회,김형국 부산대학교 유전체물성연구소 2004 유전체 논문집 Vol.3 No.

The adsorption of oxygen and methane on the bundles of open-ended single wall carbon nanotube(SWNT) was studied using the volumetric adsorption qst was obtained from the adsorption isotherm measurements performed at different temperatures. The trend in the values of the methane isosteric heat of adsorption showed three regions, representative of the adsorption on the different types of adsorption sites. In case of oxygen, on the other hand, such distinguishable regions were not appeared in the N-qst graph. From the results of qst the binding energies of oxygen and methane adsorbed on open-ended SWITs were estimated.

강원도 삼척지역의 스멕타이트질 점토의 산상 및 특성

황진연,박성완,이상현,최수용 부산대학교 기초과학연구소 1995 부산대학교 기초과학연구소 연구논문집 Vol.15 No.-

The smectite-rich clays were found locally in Paleozoic calcareous sedimentary rocks in the Samcheok area. Their occurrences were investigated in detail, and the physico-chemical properties of the clays were also determined by X-ray diffraction, chemical analysis, thermal analysis and cation exchanging experiment. The smectitie clays occur as the fissure filling dyke developed in calcareous semimentary rock and as alteration products of instrusive rhyolite. Most of clays occur at the contact between the sedimentary rock and the rhyolite, and the alteration zone was observed only in rhyolite body close to the contact. Judging from their occurrences, it is believed that the smectite-rich clays in this area were formed by the hydrothemal alteration. The smectite clays from the area are mainly composed of Ca-montmorillinite, and associated with small quantities of quartz, opal-CT and feldspar. The montmorillinites from this area lower in Fe content, and higher in exchangeable Ca ion, compared to those of bentonite from the Yangnam-Yeongil area.

경북 감포지역 제3기층에 산출되는 불석광물 및 점토광물의 산상 및 분포

황진연 부산대학교 기초과학연구소 1988 부산대학교 기초과학연구소 연구논문집 Vol.8 No.-

감포지역 제3기층의 응회암질암석 중에는 clinoptilolite, mordenite, smectite 및 cristobalite 등의 변질광물이 X선회절분석에 의해 많이 검출된다. 이들 광물의 광물조합에 의해 4개의 변질분대로 구분되었다. 즉, I. 미변질유리대, II-A. 점이대, II-B. clinoptilolite대, II-C. mordenite대이다. I,II-A 및 II-B대는 전동층에 주로 분포되며, II-C대는 장항층에 분포되어 나타난다. 변질광물의 분포상태 및 광물학적 성질등으로 보아, 이들 변질분대는 속성변질작용에 의한 것으로 생각된다. 그러나 본지역의 일부지점에서는 국부적인 열수변질작용에 의한 것으로 생각되는 광물도 관찰된다. In the Tertiary tuffaceous rocks of Gampo area, the alteration minerals such as clinoptilolite, mordenite, smectite and cristobalite are detected by using the powder X-ray diffraction method. On the basis of the mineral assemblages, the alteration zones are grouped into four zones; I. unaltered glass zone, II-A. transitional zone, II-B. clinoptilolite zone, II-C. mordenite zone. The zones, I. II-A and II-B are distributed in the Jeondong Formation, and the zone II-C is found in the Janghang Formation. Judging from the distribution and mineralogical properties of the alteration products, it is recognized that the alteration zones were formed by diagenetic alteration process. Besides the diagenetic alteration minerals, hydrothermally altered minerals are locally observed in some parts of this area.

Polystyrene Beads를 사용한 경량 폴리머 시멘트 모르타르의 기초적 성질

연규석,신영수,이윤수,이기원,황진하 강원대학교 부설 석재복합신소재 제품연구센터 2000 석재연 논문집 Vol.5 No.-

polystyrene beads를 사용한 경량 시멘트 모르타르의 성질을 개선하기 위해 EVA혼화용 폴리머를 첨가한 모르타르를 제조하여, 물리ㆍ역학적 성질을 살펴보았던 바 polystyrene beads 골재 재부의 공극 때문에 높은 공기량을 보였고, 플로우 값은 폴리머-시멘트비 10%에서 가장 높은 값을 나타냈다. 또한 폴리머-시멘트비가 증가할수록 압축강도와 휨강도는 증가하였고, 시멘트-경량골재비가 낮을수록 압축강도는 증가하였으나, 휨감도에는 크게 영향을 주지 않았다. The objective of this study was to improve performance of lightweight polymer cement mortars by treating with redispersible polymer powders. Lightweight polymer-cement mortars were prepared with respect to different polymer-cement ratios, and tested for water absorption, specific gravity, flexural and compressive strengths, workability and freeze-thaw resistance. Manufactured lightweight polymer-cement mortars in this study showed lower specific gravity and lower thermal diffuseness than ordinary cement mortars. Water absorption, specific gravity, flexural, compressive strengths and workability were measured according to appropriate KS test methods. As a results, the optimum mix ratios for cement-aggregate, polymer-cement, and water-cement were found to be 1:3, 10% and 30%, respectively.

CD ROM을 이용한 교육프로그램이 단기입원수술 환자의 수술 전 불안과 수술 후 자가간호 수행을 위한 지식에 미치는 효과

황연자,박연환,박인선,김남이,김정미,김진영 성인간호학회 2004 성인간호학회지 Vol.16 No.1

Purpose: The purpose of this study was to investigate the effect of nursing education using a CD ROM on the anxiety and knowledge of the patients having minor surgery. Method: Forty patients hospitalized in K hospital in Seoul from April to August 2002 participated in this study. In the experimental group, twenty patients received nursing education on the operational procedures and post-operational care. The control group, received conventional nursing care only. Anxiety experienced by patients was measured by Spielberger's State-Trait Anxiety Inventory, and knowledge was measured by an instrument developed by Rahe et al. The data were analyzed by SPSS statistical program. Result: There were no significant differences in anxiety level between two groups. However, subjects in the experimental group were found to have significantly higher postoperative knowledge levels than those in the control group, and were very satisfied with the CD ROM program. Conclusion: The nursing education program using CD ROM before minor surgery proved to be an effective nursing intervention to increase knowledge of patients and contribute to their self care after discharge. To decrease anxiety of the surgery, the nursing education program should be combined with supprortive emotional nursing intervention, such as touch, and massage.

경북 청송지역 도석광성에서 산출하는 점토광물

황진연 부산대학교 기초과학연구소 1990 부산대학교 기초과학연구소 연구논문집 Vol.10 No.-

The pottery stone diposits of the Cheongsong area consist of abundant quartz with clay minerals such as mica/smectite interstratified mineral,tosudite,kaolinite and sericite. The occurrence and mineralogical properties of the clay minerals were investigated by X-ray diffraction method,chemical analysis, DTA and IR. Tosudite occurs in the Beopsoo pottery stone deposit, it seem to be Li-beraing tosudite.Mica/smectite interstratified minerals with less than about 20% expandable layers are commonly observed in the pottery stne deposits of the area. The mica/smectite interstratified minerals tend to increase the expandable layers as the pogress of alteration. The pottery stones from this area seem to be altered from rhyolite or welded tuff by hydrothemal solution.

강원도 태백시 고사리도석광산에 산출하는 점토광물의 산상 및 특성

황진연,정윤영 부산대학교 기초과학연구소 1995 부산대학교 기초과학연구소 연구논문집 Vol.15 No.-

고사리광산의 도석에는 다량의 석영과 함께 녹니석/스멕타이트 혼합층광물, 운모/스멕타이트 혼합층광물, 카오리나이트와 같은 점토광물이 산출한다. 이들 점토광물에 대해 주로 X-선회절분석과 화학분석 등을 이용하여 광물학적 특성을 검토하였다. 이 광산의 도석은 녹니석/스멕타이트 혼합층광물을 다량 함유하는 것이 특징으로 나타났다. 이 녹니석/스멕타이트 혼합층광물은 Li을 함유하는 돈바싸이트로 된 녹니석층과 바이델라이트에 가까운 스멕타이트층으로 구성된 혼합층구조를 이룬다. 이 곳에 산출하는 운모/스멕타이트 혼합층광물은 모두 약 15% 이하의 팽윤층을 포함하는 것으로 되어 있다. 이 광산의 도석은 백악기의 유문암 및 유문암질 용회암이 열수변질작용을 받아 형성된 것으로 나타났다. 점토광물조합의 분포상태에 의해 대략적인 변질분대가 나누어진다. 중심부인 강변질대에서는 다량의 녹니석/스멕타이트 혼합층광물이 나타나며 카오리나이트가 수반되기도 한다. 그 외곽지역의 약변질대에서는 점토광물로서 운모/스멕타이트 혼합층광물이 주로 나타난다. 카오리나이트는 주로 열극이나 그 주위에 국부적으로 산출되는 경향이 있다. 이와 같은 변질광물들의 산출상태로 볼 때 변질작용의 진행에 따라 운모/스멕타이트 혼합층광물이 먼저 형성된 후 이것의 일부가 녹니석/스멕타이트 혼합층광물 및 카오리나이트로 변화된 것으로 생각된다. 또 카오리나이트는 열수의 공급이 마낳은 열극부에서 녹니석/스멕타이느 혼합층광물은 후기의 변질작용에 의해 형성된 것도 포함된다. The pottery stones from the Gosari mine consist of abundant quartz with the clay minerals such as chlorite/smectitie and mica/smectite interstratified minerals, and kaolinite, Mineralogical characteristics of the clay minerals were examined by X-ray powder diffraction and chemical analysis. The pottery stones in this mine are characterized by large amounts of chlorite/smectitie interstratified mineral. The chemical compositioon of the chlorite/smectitie interstratified mineral indicates that the chlorites are Li-bearing donbassite and the smectites are close to beidellite. Mica/smectite interstratified minerals from the mine area have the mixed layers with expandability less than 15%. The pottery stones in the mine were probably formed by hydrothermal alteration of the Cretaceous rhyolite tuff. The pottery stone deposit can be devided into the zones of hydrothermal alteration on the basis of the clay mineral assemblages. In the centeral zone, strongly altered parts, the rocks are composed of abundant chlorite/smectite interstratified mineral and small amounts of kaolinite. On the other hand, the weakly altered rocks in the outer zone are mainly composed of mica/smectite interstrarified mineral instead of chlorite/smectitie interstratified mineral and kaolinite. In general, the kaolinites tend to occur locally in and

綠泥石と絹雲母の硫酸溶液による溶媒

黃辰淵 부산대학교 기초과학연구소 1988 부산대학교 기초과학연구소 연구논문집 Vol.8 No.-

Samples of a mixture of Fe, Mg-chlorite and sericite, a Mg-chlorite, a Fe-chlorte, and a sericite were treated with 0.05 N H₂SO₄in a closed system at 25,50, and 80℃ for varying periods of time, and the susceptibility of the minerals to the treament, in terms of dissolution of cations such as Si, Al, Mg, Fe, and K, has been investigated. The dissolution rate of the cations increased with temperature for all samples examined, and the rate was higher in the cholrites than in the sericite at all temperatures. The dissolution of the cations was incongruent, and the chlorites released Al, Mg, and Fe more rapidly than Si. It seemed, for the chlorites, that the cations in the interlayer and octahedral sheets were dissolved at a higher rete than those in the tetrahedral sheets. It was found also that the Fe-rich chlorite was more susceptible to the acid treatment than the Mg-rich one.

Inoue Balloon을 이용한 PMV의 장·단기 결과 분석

진은선,이연아,전숙,김현숙,정승묵,박상선,최락경,임달수,홍석근,황흥곤 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.11