군자산 자생 망개나무 임분의 구조적 특성

이경수 ( Kyung Su Lee ),정태영 ( Tae Young Jung ),박철하 ( Chull Ha Park ),한주환 ( Ju Hwan Han ),이귀용 ( Gui Yong Lee ),구창덕 ( Chang Duck Koo ) 한국산림과학회 2012 한국산림과학회지 Vol.101 No.4

Berchemia berchemiaefolia is a rare and endangered species and important as a honey resource. The purposes of this study were to investigate physical environmental factors and the population and community structure of Berchemia berchemiaefolia stands at Mt.Gunja in Sogrisan National Park in Chungcheongbuk-do. The B berchemiaefolia stands belonged to deciduous forests in mid-temperate zone and were 5~25˚ in slope 30~90% in rock ratio and 6.37 in soil pH. They had 656 trees within the area of 36 ha and their average density was 18.2 trees per ha. The trees within the stands were 11.8m in tree height 22.6 cm in DBH and 56 years old. The number of branched stems was the maximum 8 and 32.9% of the trees were branched. B. berchemiaefolia trees over 12cm diameter occupied 89.9% but young B. berchemiaefolia did only 11%. The structure of B. berchemiaefolia stands were classified into three groups as Acer pseudo-sieboldianum & A. mono community group A. pseudo-sieboldianum & Quercus aliena community group and B. berchemiaefolia & Quercus serata community group. The mean importance value of B. berchemiaefolia was 10.9% while species diversity of the community ranged 0.77~1.31 and interspecific competition ranged 0.78~0.94. The dominance of the community ranged of 0.07~0.29 and the evenness ranged 0.71~0.93. Although B. berchemiaefolia was dominant in the habitat but the species was already in natural successional stage to cornus controversa or Ulmus davidiana var. japonica.

모듈화된 계층의 구조를 갖는 시뮬레이션 모델에서의 모델간 연결 방법론과 그 적용 예

하경재,정민수,조대호 慶南大學校 附設 基礎科學硏究所 1995 硏究論文集 Vol.7 No.-

대량의 지식베이스를 처리하는 시스템의 모델링을 하기 위해서는 큰 규모의 데이터베이스에 저장되어 있는 정보를 효과적으로 접근할 수 있어야 한다. 본 논문에서는 데이터가 계층의 구조를 갖고 모듈화 되어 있는 능동적인 기억소자(Processor/memory pair)에 저장되어 있는 시스템의 모델링에 사용할 수 있는 단계적접근(level access)방법론을 어떻게 유사추론 시스템(analogical reasoning system)에 적용 할 수 있는가를 보여준다.

락탐화합물의 고리 확장 연구 : 입체 선택성과 Mechanism에 관한 연구 Study of Stereoselectivity and Mechanism

하진렬,최경민,김지아,원태진,신동수,이민주,안철진 昌原大學校 基礎科學硏究所 2002 基礎科學硏究所論文集 Vol.14 No.-

The ring expansion chemistry is one of the most important methods to prepare five-and six-membered heterocylic compounds. We have studied about γ-lactam ring expansion with stereoselectivity from β-lactam derivative. To do this chemistry, proton of N-benzyl group in β-lactam derivatives is eliminated by LDA and make carbanion.This anion make unstable 4-membered lactam intermediate, and then the ring is opened by homo clevage or hetero cleavage for releasing ring strain, followed by recyclization to one carbon to make γ-lactam ring with stereoselectivity in β-, γ- positions.

인체 혈장에서 염산시프로플록사신(시프로플록사신으로서 250㎎) 정량을 위한 HPLC 분석법의 유효성검토

하용화,조성희,천성국,서성훈,류재환,최영욱,이경태 한국약제학회 2004 Journal of Pharmaceutical Investigation Vol.34 No.4

A simple HPLC method with ultraviolet detection of ciprofloxacin in human plasma was developed and validated. After protein precipitation with trichloroacetic acid, chromatographic separation of ciprofloxacin in plasma was achieved at 50℃ with a C_18 column and methanol-phosphate mixture (pH 2.5), as mobile phase. Quantitative determination was performed by ultraviolet detection at 278 nm. The method was specific and validated with a limit of quantification of 100 ng/ml. The infra- and inter-day coefficients of variation were between 1.67% and 10.55% and accuracy between 92.01% and 106.09%. The method has been successfully applied in a bioavailability study of 250 ㎎ ciprofloxacin hydrochloride tablet.

비기능성 부신피질암 1례

하달봉,이경섭,손형규,이준희,원유홍,김동훈,장태정 동국대학교 경주대학 1996 東國論集 Vol.15 No.-

비기능성 부신피질암은 발생 빈도가 극히 드문 악성 종양이며, 내분비학적 임상증상이 없어 주로 복부 종물에 의해 우연히 발견된다. 그래서 대부분 종양의 크기가 거대하고 전이로 진행된 경우가 흔하며, 절제술만으로는 치유 불가능한 경우가 많아 예후가 불량한다. 최근 저자들은 약 10년간 간헐적인 좌측 측복통과 흉부 압박감으로 내원하여, 이학적 검사 및 방사선학적 검사상 복부 종물이 확인되고 생화학적 검사에서 비기능성으로 판명된 52세 남자 환자에서 근치적 신절제술을 시행하여 병리조직검사상 비기능성 부신피질암으로 진단되었기에 문헌 고찰과 함께 보고하는 바이다. Nonfunctioning adrenocortical carcinoma is extremely rare, which is diagnosed most often in older man because of mass effect. Most tumors are discovered too late for curative resection, and advanced tumors are associated with a poor prognosis. Herein we report on a 52-year-old man with nonfunctioning adrenocortical carcinoma, treated by radical nephrectomy.

열교환기 구조 변화에 따른 NH₃와 R22의 성능특성연구

하옥남,하경수,이승재,정송태 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

Nowadays HCFCs refrigerant are restricted because it cause depletion of ozone layer. However, natural gases such as ammonia as an organic compound, propane and propylene as hydrocarbon are easy and cheap to obtain as well as environmental. Accordingly, this experiment apply the NH3 and R22 to study the performance characteristic from the superheat control and compare the energy efficiency of two refrigerants from the high performance. The condensing pressure of refrigeration system is increased from 15bar to 16bar and degree of superheat is increased from 0 to 10℃ at each condensing pressure. As the result of experiment, when comparing the each COP, we knew the NH₃ is suitable as the alternative refrigerant of the R22.

敎養體育 敎科課程에 있어서의 學習者의 要求와 反應 : 女子大學을 中心으로

河泰卿 聖心女子大學校 1969 論文集 Vol.1 No.-

보중익기탕합인진사령산이 CCl₄中毒 흰쥐의 肝損傷에 미치는 影響

河智容,白泰鉉,張梗植 대한동의병리학회 1997 동의생리병리학회지 Vol.11 No.1

간병변은 현대인들의 스트레스, 과로, 음주, 고지방식의 과다 섭취 등의 각종 원인에 의하여 점차 증가하고 있는 실정이다. 최근 이에 따라 간기능을 보조하는 드링크류나 약재가 개발되어 시판되고 있으나, 아직까지 뚜렷한 효능을 가진 약재가 없는 현실이다. 간질환이 발병시 피로, 노권, 식용부진, 황달, 복수, 발열, 심와부통(心窩部痛), 구토, 소변황적 등의 증상을 호소하는데 이를 변증하여 보면 허중협실(虛中狹實) 즉 허증인 중기부족증(中氣不足症)과 실증인 비위습열증(碑胃濕熱症)이 혼재되어 있음을 알수 있다. 이에 본 저자는 부정거사(扶正祛邪)가 간질환 치료에 효과적일 것으로 보고 보중익기탕(補中益氣湯)과 인진사령산(茵蔯四笭散)을 합방하여 CCI₄로 간손상을 유발한 백서(白鼠)의 투여하여 간기능회복여부를 연구하고자 하였다. 군을 정상군, CCI₄처리군, CCI₄처리후약재투여 A군(10㎎/㎏), CCI₄처리후약재투여 B군(20㎎/㎏)으로 나누어 일정기간 약재를 투여한후 채혈하여 AST, ALT, Bilirubin, ALP, γ-GT, LDH, Albumin, total cholesterol, α-Fetoprotein의 함량을 측정하였다. AST, γ-GT, α-Fetoprotein의 경우는 A, B군에서 대조군에 비하여 감소하였으나 A군에서는 유의성이 인정되지 않았고, ALT의 경우는 A, B군 모두에서 유의성있는 감소를 보였으며, Bilirubin의 경우 A, B군 모두 대조군에 비하여 증가하는 경향을 보였으며, ALP의 경우 A군에서는 감소하였으나 B군의 경우 오히려 증가하는 경향을 보였다. LDH의 경우 A, B군 모두 감소하였으나 유의성은 나타나지 않았으며 Albumin의 경우 A, B 모두 증가하는 경향은 보였으나 유의성은 없었다. total cholesterol의 경우 A, B군 모두 유의성있는 증가를 보였다. 이상의 결과를 종합하여 볼 경우 보중익기탕합인진사령산(補中益氣湯合茵蔯四笭散)은 간손상 회복에 영향을 미치는 것으로 보여지며 회복기전에 관련된 연구는 더욱 진행되어야 할것으로 보여진다. This paper is to investigate what effects Bojungikkitanghapinjinsaryungsan-treated A-group(10㎎/㎏ treated group) and Bojungikkitang-hapinjinsaryungsan-treated B-group(20㎎/㎏ treated group) have on ratliver injured by Ccl₄, So this experimental research is focused on measuring about AST, ALT, bilirubin, ALP,γ-GT, LDH, albumin, TP, and α-Fetoprotein. The results are summarized as follow; 1. As to AST(GOT), Bojungikkitanghapinjinsaryungsan-treated A-group was slightly decreased with no effectiveness, but Bojungikkitan-ghapin-jinsaryungsan-treated B-group was decreased with effectiveness, as compared with the control group. 2. As to ALT(GPT) Bojungikkitanghapinjinsaryungsan-treated A-group and Bojungikkitanghapinjinsaryungsan-treated B-group were decreased with effectiveness, as compared with the control group. 3. As to bilirubin, Bojungikkitanghapinjinsaryungsan-treated A-group Bojungikkitanghapinjinsaryungsan-treated B-group were increased, as compared with the control group. 4. As to ALP, Bojungikkitanghapinjinsaryungsan-treated A-group was slightly decreased with no effectiveness, but Bojungikkitanghapinjinsaryungsan-treated B-group was slightly increased. 5. As to γ-GT, Bojungikkitanghapinjinsaryungsan-treated A-group was slightly decreased with no effectiveness, but Bojungikkitanghapinjinsaryungsan-treated B-group was decreased with effectiveness, as compared with the control group. 6. As to LDH, Bojungikkitanghapinjinsaryungsan-treated A-group and Bojungikkitanghapinjinsaryungsan-treated B-group were slightly decreased with no effectiveness, as compared with the control group. 7. As to albumin, Bojungikkitanghapinjinsaryungsan-treated A-group and Bojungikkitanghapinjinsaryungsan-treated B-group were slightly increased with no effectiveness, as compared with the control group. 8. As to TP, Bojungikkitanghapinjinsaryungsan-treated A-group and Bojungikkitanghapinjinsaryungsan-treated B-group were increased with effectiveness, as compared with the control group. 9. As to α-Fetoprotein, Bojungikkitanghapinjinsaryungsan-treated A-group was slightly decreased with no effectiveness, but Bojungikkitanghapinjinsaryungsan-treated B-group was decreased with effectiveness, as compared with the control group. According to the above result, it could be suggested that Bojungikkitanghapinjinsaryungsan have prominent improvement on the liver disease.

PCS측정 기술과 Kozeny-Carman모델을 이용한 여과공정 특성연구

하상안,김승호,윤태경 한국환경과학회 2004 한국환경과학회지 Vol.13 No.9

The filtration tests were made in cell with a low concentrated suspension. The suspension with a concentration of c_(M) = 1.14~2.67 · 10^(-3) gig consists of paper paint and water. The particles in the suspension have a particle size x<l㎛. The used depth filters consists of glass fibres, which are coated by polymer. The filtration in depth filters accorded in different mechanism, which were explained by physical models. The model which would be allows to make a promise of the filtration reaction. This filter media allows to get a high filtration time and a good separation rate. The Particle distribution is measured by a photon correlation spectroscopy(PCS). PCS measures particle sizes 0.03 ㎛<d<3 ㎛ in the suspension. The filtered suspension has a very low concentration Co ≤ 5x10^(-4) gig of solid in sample. The PCS also informs us about the number of the particles in the suspension. The makes it possible to calculate the concentration of the in sample.

潛血試驗에 관한 硏究 第Ⅰ報 : Aminopyrine法 Aminopyrine Methode

李琬夏,柳柄泰,都京三 成均館大學校 1978 論文集 Vol.25 No.-

In studies of the aminopyrine-alcohol-buffer solution on the occult blood test using the filter paper method, it is found that the experimental optimum conditions are 4% aminopyrine. 10% of H_2O_2, pH5 of the Walpole buffe、r solution Toyo filter paper No.2, 1 min of standing time, and the 7 : 3 ratio of aminopyrine to H_2O_2 (V/V) As the sensitivity of this method agrees to that of Hematest, it is considered that this method can be used as a clinical test in occult blood.