• 보존과학회지
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• 제17권
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• pp.33-38
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• 2005

청주시 신봉동유적 목곽분 20호에서 해동통보 1점을 입수하였다. 이 해동통보는 서기 1,102년에 주조된 것이다. 해동통보의 성분분석을 위하여 미소부 탐침 형광보선분석 및 ICP분석을 통하여 Cu, Pb, Sn, Zn, Fe, Mn, Sb, Co, As, Ag, Ni등 11종 원소의 성분함량을 결정하였다. 또한 해동통보를 주조하기 위하여 가져다 쓴 원료의 입수처를 추정하기 위하여 납동위원소비를 분석하였다. 해동통보의 성분 배합비는 $Cu\;75.5\%,\;Pb\;13.3\%,\;Sn\;6.0\%$이었다. 이러한 배합비는 조선시대의 조선통보 및 상평통보와는 아주 다른 것이다. 납동위원소비는 한국 남부의 방연석 범위에 포함되었다.

• 융합정보논문지
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• 제10권10호
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• pp.290-297
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• 2020

본 연구는 금화규의 화장품 소재로 가능성을 확인하고자 하였다. 금화규 동결건조추출물 용액의 점도가 첨가농도에 따라 모두 증가하였으며, 염기성 수성용매로 추출한 WF에서 높은 점성이 확인되었다. 금화규 10%의 실험군 emulsion과 동결건조 달팽이 점액 10%의 대조군 emulsion을 제작하여 점도 비교 결과 WF 실험군의 증가율이 12만 9200 cPs로 가장 높았다. 피부 탄력과 수분측정 실험 결과 금화규 추출물이 달팽이 점액보다 높았다. 본 연구를 통하여 금화규 동결건조추출물이 피부의 탄력, 수분 효과가 있는 것으로 확인하였으며, 금화규가 지닌 천연적 특성을 고려한 추출법이 화장품 원료로서의 높은 가능성을 확인하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.76-79
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• 2001

In Japan in of today, there is no aspect in which the quantity of waste glass bottle discharged from ordinary homes decreases. Moreover, the kind of shape and color of the waste glass bottles are increasing little by little. In the recycling of the glass bottle, it becomes a problem that many kind of the color is abounding. It is possible to use the transparent glass bottle as raw material of the glassware. Since the reproduction of the color is difficult, the colored glass bottle is not possible to use as a raw material. Therefore, the processing of these glass bottles entirely depends on the reclamation. In Japan, the security of the new reclaimed land is very difficult for the reason of the environmental damage. Moreover, the life expectancy in many reclaimed lands is anticipated with within two years. Therefore, the development of the processing method of glass bottle other than reclamation becomes a rapid problem. At present it is examined that it is used of an aggregate of the colored pavement, as one of the application methods of colored glass bottle. The particle size of produced glass aggregate is also 5mm or less, because the thickness is 5mm or less on almost glass bottles. And almost glass particles have the sharp tip. The application as the aggregate is limited for this sharpness of the particle. This study was carried out for the purpose of the establishment of sharpness measuring method of the glass aggregate particle. It is possible that the injury degree to human in the handling is known, if showing the sharpness of the aggregate particle at the objective numerical value is possible. And the application of the glass aggregate is spread. In this research, the balloon fracture method was used for the sharpness measurement of the glass particle. This method is based on the completely new idea, and it is possible to express completely the possibility of injury to the human. It is reported with the detailed result in full paper, because this study is continuous in order to get the JIS which is industrial standard of Japan.

• 공업화학
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• 제28권2호
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• pp.252-256
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• 2017

백년초(Opuntia) 손바닥 선인장은 우리나라 남쪽 지방인 거제도, 제주도, 남해안 등지에서 자생하며 매년 4~5월경에 꽃이 피고 11~12월경에 자주색 열매가 익는다. 백년초는 예로부터 민간요법에 흔히 사용되었으며 혈액순환을 원활하게 하고 해독, 진통, 항산화 작용 등에 큰 효과가 있다. 본 연구에서는 서귀포 백년초의 항산화성 기능, 항당뇨, 항균활성 효능을 입증하여 기능성 원료로서의 가치를 파악하고자 하였다. 연구 결과 백년초 내 항산화성을 갖는 물질인 택시폴린을 추출하여 강력한 항산화 효과를 확인하였고 항당뇨성 기능 실험에서 시판되고 있는 당뇨치료제와 비교하였을 때 높은 수준의 항당뇨 기능을 확인하였다. 또한 항균 효과 측정 결과 대장균과 살모넬라균 등에서 강한 항균활성을 보여 서귀포 백년초의 기능성 원료로서의 우수한 가치를 입증하였다.

• Biomolecules & Therapeutics
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• 제18권1호
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• pp.83-91
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• 2010

Bear bile has been used as a therapeutic for cerebral and coronary thrombosis, convulsion, hepatitis, jaundice, and abscess in traditional oriental medicine. In recent decades, the effects of bile acids on cancer, cholestasis, and liver injury have been investigated in many studies. In this study, we investigated the anti-inflammatory effects of whole bear bile (WBB) and its two major components, chenodeoxycholic acid (CDCA) and ursodeoxycholic acid (UDCA), on rectal inflammation in rats. Bile acids in WBB were quantitatively analyzed by HPLC. Rectal inflammation was induced in male Sprague-Dawley rats by insertion of croton oil-saturated cotton tips. WBB, UDCA or CDCA solution was orally administered to rats one hour after induction of rectal inflammation. Rats were sacrificed 4 or 24 hours after induction of rectal inflammation. The evaluation included measurement of weight and thickness of rectum and histopathologic examination of rectal tissue. Furthermore, we examined the inhibitory effect of WBB, UDCA or CDCA against NO production in LPS-stimulated RAW 264.7 cells. The contents of UDCA and CDCA in WBB were $39.26{\mu}g/mg$ and $47.11{\mu}g/mg$, respectively. WBB treatment significantly reduced the weight and thickness of rectum compared with UDCA or CDCA treatment. The inhibition of NO production by WBB, UDCA and CDCA in LPS-stimulated RAW 264.7 cells was much higher than that by the control. And, WBB treatment suppressed the induction of NO synthase in rectum homogenates. These results suggest that the anti-inflammatory effect of WBB is related to the suppression of NO synthase induction and the inhibition of NO production by UDCA, CDCA and other bile acids of WBB.

• Composites Research
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• 제23권3호
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• pp.43-49
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• 2010

제주도 표선리 현무암 원광을 이용하여 연속 방사에 의해 현무암 섬유를 제조하였다. 먼저 현무암의 용융특성을 확인하기 위하여 현무암 원광을 백금도가니에 넣고 $1550^{\circ}C$로 용융시킨 후, 물속에서 급냉하였다. 냉각한 후 X-선 회절, 열팽창, 고온 점도, 고온 전기전도도와 고온 현미경을 측정 분석하여 연속방사 조건을 조사하였다. 연속 섬유를 제조하기 위한 최적의 방사 온도와 고온 점도는 각각 $1264^{\circ}C$와 $10^{2.8}$ poise이었다. 제조된 방사 섬유의 특성은 인장강도, 전자현미경 관찰, 내열시험 등으로 확인하였다. 부싱 온도 $1240^{\circ}C$와 와인더 속도 4600rpm의 방사 조건에서 제조된 섬유의 인장 강도는 3660MPa을 나타내었다.

• 패션비즈니스
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• 제8권5호
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• pp.31-40
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• 2004

The purpose of this study is to investigate the change of the physical properties, bending and luster properties, which are related to the touch and appearance of silk fabrics modified by the degumming process. The silk has long been known as one of the most elegant and soft textile materials. The raw silk yarn, or cocoon bave, spun from the spinneret, is rather stiff due to the sericin covering the two fibroins together. The sericin can be removed during a degumming process. The removal of the sericin would result in remarkable change in the physical properties of the raw silk fabrics, including luster of the fabrics, which process parameters could possibly be utilized to adequately control the silk fabric properties. The KES(Kawabata Evaluation System) is a testing methodology that has been used with considerable success for predicting the hand and tailorability of apparel fabrics. This study uses one of the KES, bending tester, to measure the bending properties of the silk fabrics degummed for specified period to change the physical/mechanical properties of the fabric. The KES bending measurement revealed that the bending rigidity decreased for both the warp and weft direction of the silk fabrics with the increase of the degumming period. It has been shown in this study that the some of the hand-related physical properties, including the bending rigidity, drapability, and luster, could be modified with the change in the degumming period.

• 분석과학
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• 제5권2호
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• pp.191-197
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• 1992

익산군(益山郡) 용제리(龍提里)에서 출토(出土)된 기원전(紀元前)의 세형동검(細形銅劍)을 습식(濕式) 및 원자흡수분광법(原子吸收分光法)으로 조성(組成)을 정량(定量)하였으며, 시편(試片)을 연마(硏磨), 부식(腐蝕)시켜 광학현미경(光學顯微鏡)과 주사형(走査型) 전자현미경(電子顯微鏡)으로 미세구조(微細構造)를 관찰(觀察)하였다. 또한 질량분석계(質量分析計)를 써서 납동위원소비(同位元素比)를 측정(測定)하여 원료(原料)의 산지(産地)를 추정(推定)코자 하였다. 세형동검(細形銅劍)은 Cu-Sn-Pb계(系)로서 Sn이 17%, Pb가 6.8%로서 Sn이 10% 이상이고 Pb가 첨가(添加)된 것으로 보아 청동기(靑銅器) 중기(中期) 이후(以後)임을 알 수 있었다. 시료내부(試料內部)는 ${\alpha}$와 (${\alpha}+{\delta}$) 공정(共晶)으로 되어 있으며 편석(偏析)이 일어나 있었다. 원료(原料)는 중국(中國) 북부산(北部産)일 가능성(可能性)이 크다.

• 한국식생활문화학회지
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• 제5권1호
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• pp.1-41
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• 1990

To analyze dialy meal of royal meal, studied Bankwa Sang(Fruit Table) were on record Wonheng Ulmyo Jungri Euigwae (1795). Historic book 'Jungri Euigwae' described the king's visit to his father's royal tomb 'Hyun Neung Won', during the domain of Cheung Jo, the 22nd king of Choson Dynasty. The results obtained from this study areas follows. The fruit table, which similar in concept to desert in the west but quite different in service, was prepared for a guest. The table consisted of two kinds of trays, on which serveral kinds of fruit were stacked to a height of between 4 chon (4寸 : about 12 cm) and 1 chuk(1尺 : about 30.3 cm) according to Korean measurement system. The table was decorated with beautiful artificial flowers made of paper and silk. The number of sets to be arranged on the table were different according to the royal status of the eater: 12 sets-25 sets for king's mother, 7 sets-11 sets for the king. Soy sauce mixed with vinegar and pine-nu meal, mustard were ruled out from kind of sets. Kinds of dishes served with a meal generally were noodles (麵), soup (湯), fried fish (煎油花), fried meats and vegetables (花陽灸), slices of raw fish (魚膾), minced raw meat (肉膾), slices of boiled beef (片肉), stew (蒸), rice cake (餠), sweet rice dish (藥飯), patterned savory cake (茶食), fried cake made of wheat flour, honey and oil (藥果), fried glutinous rice cake (强精), various fruits preserved in honey (正果), sugar candies (各色糖), fruits (果物) honey (淸), soy sauce mixed with vinegar and pine-nut meal (醋醬), mustard (莽子).

• 대한한의학방제학회지
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• 제28권2호
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• pp.137-145
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• 2020

Objectives : Tetragonia tetragonioides is one of the traditional herbal medicines that can be used to protect the stomach and treat cancer. However, its mechanism of overcoming gastrointestinal disorders is unclear. In this study, we investigated antioxidant and anti-inflammatory effects of Tetragonia tetragonioides Water Extract (TTWE) on RAW264.7 cells. Methods : The cell viability by TTWE was measured by using MTT assay. The free radical scavenging ability and cytokine production were analyzed by using ELISA Kit. SPSS version 25 was used for statistical analysis. Results : According to the results of this study, the cell viability measurement of TTWE significantly affected the cell viability. The radical scavenging ability of TTWE showed the highest effect compared to the positive control group when the concentration was 3.1-12.5 ㎍/ml, and significantly inhibited NO production induced by LPS. In addition, the inhibitory effect of TTWE on the production of IL-6 and TNF-α induced by LPS was significant at both TTWE concentrations of 12.5 ㎍/ml [p <0.01 (IL-6), p <0.05 (TNF-α)]. Conclusion : In conclusion, it is suggested that the antioxidant function of Tetragonia tetragonioides Water Extract could be used to prevent and treat inflammatory diseases.