화학적침전법으로 제조된 Ba(Ce_x,Ti_1-x)O_3의 유전 특성에 관한 연구

최승평,박향숙 조선대학교 기초과학연구소 1998 自然科學硏究 Vol.21 No.1

Ba(Ce_x, Ti_(1-x))O_3 powders have been obtained by the pyrolysis of barium titanyl oxalate adding 0.04 mol% CeCl_3 solution. After calcinating the powders were cold-pressed into discs 10 mm dia. and 1 mm thick using a stainless steel die with a fabrication pressure of 24000 p.s.i.. The compacts were sintered in air at 1350℃ for 2hrs in a silicon tube furnace of SiC heating elements. The results that the permittivities at the Curie temperature are rapidly increased regardless of the amounts of Ce compound included in the barium titanate matrix agree with Curie-Weiss law.

大都市 周邊 小都市의 都市化에 따른 住居特性 變化에 관한 硏究 : 梁山市 熊上邑을 中心으로

최열,신현묵,유숙향 釜山大學校 都市問題硏究所 2003 都市硏究報 Vol.14 No.-

This study examines a changes of the small town around the metropolitan area as the process of urbanization. And, to know the change of the residential characteristics by this process, Ungsang-up in the city of Yang-san is selected for the case study. This purpose of this study are that find out how to establish an desirably residential environment of the small town around the metropolitan area, and, moreover, the way of easing the overpopulated metropolitan area. Today, the problems of the metropolitan area like overcrowding are not formed itself, and then the solution have to be found in relation to that of the small town around it. The results of this study, to improve the residential condition of the small town, are that, first, a great variety of opportunities for employment. Second, the housing of the simply quantitative suppling but the housing of being superior in quality have to be made and various residential environments have to be created. At the last, the facilities to solve the desire of culture and education for residents living in have tot be provided in the small town around a metropolitan area.

Production and Purification of Soluble Recombinant Human Lymphotoxin in Escherichia coli

CHOI,YOON - HO,DOE - SUN NA,JAE - GU PAN,SEUNG - KIEL PARK,HYANG - SOOK YOO,KOOK - HEE KANG,MOON - HEE SUNG 한국미생물생명공학회 1992 Journal of Microbiology and Biotechnology Vol.2 No.1

Purs Lane의 유용성분과 아질산염 소거능 검색

김향숙,변복수,최주희,박지영 충북대학교 교육생활연구소 2001 생활과학연구논총 Vol.4 No.-

This study was carried out to examine the useful components of Purs Lane and their nitrite scavenging effect. Leaves and stems were separated and analyzed fo general chemical composition, amino acid composition, and dietary fiber contents. Anti-oxidant nutrient such as total vitamin C, total phenol ice, and vitamin E contents were also analyzed. Nitrite scavenging effects of methanol extract and aqeous extract were examined.

항암화학요법 관련 오심과 구토 완화를 위한 비약물요법에 관한 연구동향

소향숙,최자윤,조인숙,김영재,김지영,김애숙,김옥미,김춘심,김현오,설영애,안정옥,이애리,이영자 성인간호학회 2003 성인간호학회지 Vol.15 No.3

Purpose: Purposes of this study were to understand the current trends on complementary therapy in relieving chemotherapy-induced nausea and vomiting and to suggest the future research direction. Method: Subjects were selected on CINAHL, MEDLINE, Korean Academy Data Base from 1980 to 2001 which used nausea, vomiting, chemotherapy and complementary therapy as key words in experimental studies. Eight korean articles and twenty-one international articles were analyzed in terms of general characteristics, research methods, and types of complementary therapy. Data were analyzed by using descriptive statistical methods. Result: Since 2000, researchers have more actively used complementary therapy. In subject characteristics, mean age was 35.5 years old, 45% of the researchers were performed with high level of incidence of chemotherapy induced vomiting, 14% of them set limit of consecutive cycle during research, and 65% of them did not comment the selecting criteria of sample. About 60% of them were designed post-test only control group: 35% used INV by Rhodes, 31% used Likert scale, and 24% used VAS for dependent variable. Muscle relaxation therapy was mostly applied for relief of nausea and vomiting. Conclusion: Further studies will be needed to control extrinsic variables affecting nausea and vomiting in research design and to accumulate evidence with studies applying various complementary therapies.

차풀의 풍미성분

이미순,최향숙 德成女子大學校 1992 德成女大論文集 Vol.21 No.-

신선한 차풀의 휘발성 풍미성분은 총 67종이 확인되었고 palmitic acid의 함량이 가장 높았다. 자연건조 차풀에서는 총 74종이 확인되었고 phytol의 함량이 가장 높았다. 자연 건조 시료의 구수한 풍미는 furfural, iso-phytol,acetone 등에 의하는 것으로 보인다. 아미노산은 총 18종이 함유되어 있었으며, 이 중 proline이 16.66%, aspartic acid가 11.23%, glutamic acid가 9.85%를 차지하였고 함황 아미노산 및 tryptophan의 함량은 매우 낮았다. 유리 아미노산은 총 15종이었고 이 중 proline의 함량이 가장 높았다. 미각적 측면에서 볼 때 차풀에서는 단맛이 우세하였다. The studies on volatile flavor components and amino acid contents of Cassia mimosoides have been performed. Volatile flavor components were collected by simultaneous steam distillation-extraction(SDE) method. Essential oils were analyzed by gas chromatography(GC) and combined gas chromatography-mass spectrometry(GC-MS). Contents of amino acids in total and free forms were determined by automatic amino acid analyzer. Sixty seven volatile flavor components, including 12 hydrocarbons, 8 aldehydes, 11 ketones, 14 alcohols, 7 esters, 10 acids, 3 lactones and 2 miscellaneous ones were confirmed in fresh sample. Seventy four components, including 15 hydrocarbons, 7 aldehydes, 7 ketones, 18 alcohols, 12 esters, 5 acids, 4 lactones and 6 miscellaneous ones were confirmed in shady un-dried sample. Palmitic acid and phytol were regarded as the most abundant components respectively in fresh and shady sun-dried samples. Eighteen kinds of amino acids were identified and quantified, that is, aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, valine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine, arginine, cystine, methionine and tryptophan. Proline(2239.38mg%) was the richest among them and total amount of the essential amino acid, which was 41.63% of total amino acids, was 5597.78mg%, Fifteen kinds of free forms were identified and proline was the most abundant.

냉이의 채취 시기 및 지역에 따른 풍미성분

이미순,윤석권,최향숙 덕성여자대학교 식물자원연구소 1993 植物資源硏究誌 Vol.1 No.-

냉이를 대상으로 채취시기 및 토양의 비옥도에 따른 휘발성 풍미성분 변화패턴을 조사한 결과 동일 지역에서 채취한 시료라도 채취시기에 따라 휘발성 풍미성분 저상에 차이가 있음을 확인하였다. 마석 지역에서 3월에 채취한 냉이에서는 총 50종의 성분이, 4월에 채집된 냉이에서는 총 58종의 성분이 확인되었다. 구성 성분의 차이이외에 같은 성분이라도 양적인 측면에서 상이하였다. 야생식물의 휘발성 풍미성분의 조성 및 함량의 차이는 일조량, 강우량 및 기온 등의 여러 가지 환경요인에 의한다고 측정되며, 이러한 환경요인에 대해서는 앞으로 계속 규면되어야 할 것이다. 토양의 비옥도에 따른 휘발성 풍미성분의 변화패턴을 조사하기 위하여 강원도 춘천 지역에서 토양의 질이 좋은 밭과 일반 들판에서 같은 시기에 채취한 냉이를 분석한 결과 휘발성 풍미성분의 profile이 다를 뿐만 아니라 들판에서 채취한 냉이에서는 19종의 휘발성 풍미성분이 더 확인되었다. 냉이를 대상으로 채취시기 및 채취지역에 따른 유리 및 전 아미노산의 함량을 조사한 결과 양적인 측면에서 큰 차이를 보였으며, 강원도 춘천의 토양이 비옥한 밭에서 채취한 시료가 일반 들판에서 채취된 냉이에 비하여 유리 및 아미노산의 함량이 월등히 높았다. These studies were performed in order to determine the volatile flavor components and contents of amino acids in total and free forms from Capsella bursa-pastoris. Volatile flavor components from Nangi (냉이 ; Capsella bursa-pastoris) were collected by simultaneous steam distillation-extraction(SDE) method. Essential oils were analyzed by gas chromatography(GC) and combined gas chromatography-mass spectrometry(GC-MS). Amino acids were identified and quantified by automatic amino acid analyzer. Emphasis was given to the effects of collecting time and growing regions on flavor components from this wild plant. As a result of confirming essential oils of Capsella bursa-pastoris collected from MaSeok region in early spring(March) and middle spring(April), the kinds and amounts of volatile flavor components revealed different patterns depending upon collecting time. Respective 50 and 58 volatile flavor components were confirmed in samples of Capsella bursa-pastoris collected in early spring and middle spring. Samples of Capsella bursa-pastoris collected from open field in ChunCheon region showed a greater number of volatile flavor components than the ones collected from ordinary field. Sixteen kinds of amino acids were identified and quantified, that is aspartic acid, threonine, serine, glutamic acid glycine, alanine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine, arginine and proline, Fifteen kinds of free were identified. Capsella bursa-pastoris collected from ordinary field in ChunCheon region contained larger amounts of total and free amino acids than any other samples. The amounts of total and free amino acids revealed different patterns depending upon collecting time and growing regions.

광릉수목원 혼합림에서 복사 에너지의 계절 변화 특성

김연희,조경숙,김현탁,엄향희,최병철 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.3

The measurement of the radiation energy, trunk temperature, leaf area index(LAI), air temperature,vapor pressure, and precipitation has been conducted under a mixed forest at Kwangneung Arboretum during the period of 2001. Characteristics of the diurnal and seasonal variation of the radiative energy were investigated. The aerodynamic roughness length was determined as about 1.6m and the mean albedo was about 0.1. The downward shortwave radiation was linearly correlated with the net radiation and its correlation coefficient was about 0.96. From this linear relation, the heating coefficient was calculated and its annual mean value was about 0.21. The albedo and heating coefficient was varied with season, surface characteristics, and meteorogical conditions. The diurnal and seasonal variations of radiation energy were discussed in terms of the surface characteristics and meteorological conditions. In the daytime, during clear skies, net raditaion was cominated by the shortwave radiation. In presence of clouds and fog, the radiation energy was diminished. At night, the net radiation was entirely dominated due to the net longwave radiation. There was no distinct diurnal variation in net radiation flux during the overcast or rainy days. The net radiation was strongest in spring and weakest in winter. The seasonal development in leaf area was also reflected in a strong seasonal pattern of the radiation energy balance. The timing, duration, and maximum leaf area and trunk temperature were found to be an important control on radiation energy budget. The trunk temperature was either equal or warmer than air temperature during most of the growing season because the canopy could absorb a substantial amount of sunlight. After autumn(after the middle of October), the trunk temperature was consistently cooler than air temperature.

각종 간 병변에 대한 양전자 방출 단층촬영(PET) 영상 소견 분석

손현배,한철주,김병일,김진,정숙향,김유철,이진오,최창운,임상무 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.4

목적: PET은 세포의 대사를 반영하는 기능적 영상기법으로서 각종 간 병변이 PET에 어떤 영상으로 나타나며, 간 종양의 진단 및 치료에 어떻게 활용될 수 있는지를 알아보고자 하였다. 대상과 방법: 간세포암 34예, 담관세포암 8예, 간 내 전이암 25예, 간 혈관종 6예, 간 농양 7예를 대상으로 PET 영상을 얻어 SUV 및 병변과 주변 조직의 SUV 비를 조사하였다. 각각의 질환에 대해 SUV, SUV 비의 평균치 및 SUV 비의 분포를 비교하였다. 결과: 담관 세포암과 전이암은 높은 SUV를 보이며, 거의 대부분 PET에서 선명하게 나타나며, 100%의 예민도를 보였다. 간세포암도 비교적 높은 SUV를 보이나 일부는 PET에서 뚜렷이 나타나지 않으며 59%의 예민도를 보였다. 혈관종은 PET에서 뚜렷이 나타나지 않는 반면, 간 농양은 뚜렷한 영상으로 나타나 100%의 예민도를 보였다. 결론: PET은 간에 발생 하는 각종 병변의 진단 및 감별에 제한적이기는 하나 활용 가능성이 있으며, PET에 선명한 영상을 보이는 일부 종양에 대해 병기 판정, 재발 발견, 치료 반응 평가 등의 목적에 활용될 가능성이 있는 것으로 기대된다. Background/Aims: [18F]FDG-PET is a functional imaging modality reflecting cellular glucose metabolism. In most malignant cells, accumulation and trapping of [18F]FDG allows the visualization of increased uptake compared with normal cells. The aim of this study was to assess the value of PET in differentiating benign from malignant hepatic lesions and to determine in which types of hepatic tumors PET can help evaluate stage, monitor response to therapy, and detect recurrence. Methods: Eighty patients with liver lesions were enrolled (hepatocellular carcinoma 34, cholangiocarcinoma 8, metastatic liver cancer 25, hemangioma 6, liver abscess 7). Liver metastases were 22 adenocarcinoma, 2 lymphoma, 2 squamous cell carcinoma. The PET images of these patients were analyzed. SUV and lesion-to-normal liver background SUV ratio were obtained and compared among the disease groups. Results: All liver metastases and all cholangiocarcinomas had increased uptake value, with SUV ratios greater than 2. Hepatocellular carcinoma had SUV ratios greater than 2 in 20 of 34 patients (59%). All hemangiomas had poor uptake, a SUV ratio of less than 2. All liver abscesses showed definite uptake. Conclusions: The PET technique using FDG static imaging was useful in differentiating malignant from benign lesions of the liver in limited situations. Limitations included false negative results in some patients with hepatocellular carcinoma. Liver abscesses raised problems in differential diagnosis from malignant liver tumors. The findings of this study suggest that the PET technique might be applied in tumor staging and the detection of recurrence, as well as monitoring responses to therapy for all adenocarcinomas and some hepatocelluar carcinomas.(Korean J Hepatol 2002;8:472-480)

경기도 지역 정신보건 사업의 추진배경과 정책결정과정

이충순,윤배중,이주훈,이종국,고영,이영문,최향순,김혜숙 용인정신의학연구소 1997 용인정신의학보 Vol.4 No.2