飼料資源開發을 위한 雜灌木樹葉의 飼料價値와 韓牛의 放牧利用에 關한 硏究

尹益錫,陸完芳,李仁德,曺圭燉,金炯基 건국대학교 1978 學術誌 Vol.22 No.1

As a part of forestry utilization for livestock feed resources the feeding value ague of shrub leaf by growth stage and grazing behabiour of the native cattle at shrubby grassland in function of seasons were investigated and the following results were obtained. 1. The crude protein content of oak leaf declined as the growth stage increased whereas the contents of crude fiber and crude fat showed the opposite tendency. 2. The intake of oak leaf paralleled with the amount given while the intake of the mixed grass leas remarkable increased and the body weight gain was also remarkably increased. 3. The average number of oak leaf intake was 70.5 times for spring, 148.7 for summer, and 395.7 for autumn. 4. The grazing time by the native cattle was decreased in the order of spring, autumn, and summer. As for the grazing behaviour, the intake activity was most active during morning, mid-day and late afternoon or three times a day. 5. The duration of rumination was found to be in the decreasing order or summer, autumn and spring, cattles ruminated more when the grasses were more abundant. 6. As for the inactive period of animal, it was short during spring when the animals spent more time for eating but it was about 5 times longer during both summer and autumn.

치매노인의 인지능력에 미치는 꽃장식의 효과와 꽃의 선호도 조사

윤숙영,김홍열,--,우태양 한국화훼연구회 2002 화훼연구 Vol.10 No.1

본 연구는 대구광역시에 위치한 <햇빛치매어르신주간보호센터>에 있는 치매노인을 대상으로 꽃장식이 치매노인의 인지기능에 미치는 영향을 알아보고 꽃장식에서 꽃의 색과 크기의 선호도를 조사하기 위해서 치매노인 6명을 대상으로 2002년 2월 14일부터 2002년 5월 9일까지 주 1회씩 총 12회 원예치료 프로그램을 실시하였다. 대상자는 모두 여성이었다. 평가결과는 다음과 같다. MMSE-K 평가결과 대상자 A는 원예치료 실시 전 13점에서 실시 후 18점으로, 대상자 D는 원예치료 실시 전 5점에서 13점으로 유의하게 향상되는 것을 볼 수 있었다. 대상자 B는 7점에서 8점으로, 대상자 E는 3점에서 7점으로 향상되었으나 유의차가 없었다. 대상자 C는 원예치료 실시 전 15점에서 실시 후에는 14점으로 오히려 낮아졌으나 유의차는 없었다. 대상자 F는 인지능력이 없는 대상자로서 실시 전후 큰 변화가 없었다. 꽃의 선호도 조사결과 색은 적색과 황색 그리고 분홍색 순으로 선호하였고 크기는 중간형보다는 크거나 작지만 풍성한 꽃을 선호하였다. 이상의 결과로부터 꽃장식은 치매노인의 인지기능 향상에 효과적이었다. 재료는 매회 달랐지만 작품을 구사하여 다듬고, 자르고, 꽂고 하는 반복적인 활동을 통해 흥미를 유발하여 적극적으로 자신감을 갖게 되었으며, 또한 결과물을 가족들과 함께 공유하게 함으로써 가족관계도 개선되었다. Abstract. This study set out to research preference of flowers, to analyze the impacts of floral decoration on the improvement of recognition ability in the demented old adults in order to develop an more effective horticultural therapy program for the demented old adults. The subjects were made out of the demented old adults who were taken care of at <HABIT Demented Old Adults Day Care Center> located in Icheon-dong, Nam-gu, Daegu Metropolitan City. Total six subjects were included in experiment. They were all female, and their average age was 76. The experiment was conducted once a week from February 14 to May 9, 2002, total in 12 times. The experiment was only focused on floral decorations. The color and size of flowers were considered to decide the subjects preference. The subjects preferred red and yellow flowers. They also liked big flowers or small but opulent ones. As for floral decoration, the material flowers were different each session. But the subjects were aroused into interest via repetitive activities such as designing their works and arranging, cutting, and putting in flowers. Their active and confident attitudes became evident, and their relationships with their family grew better as they shared their works with them.

와전류센서를 이용한 펜슬가공시 볼엔드밀의 가공궤적 해석

윤경석,왕덕현 경남대학교 신소재연구소 1997 論文集 Vol.9 No.-

펜슬가공시 절삭조건을 변화시켰을 경우 발생하는 공구변형 특성을 머시닝센터의 주축부에 설치한 와전류센서로 측정하여 최빈도(median)필터를 거쳐 해석하였다. 펜슬가공중 코너에서 이송속도를 줄이는 것이 공구변형을 감소시키는데 효과적인 것으로 나타났다. 공구변형을 하향절삭에서 절삭력이 작게 작용하기 때문에 상향절삭보다 하향절삭에서 줄일 수 있었으며, 금형제작에서 펜슬가공할 때 하향절삭으로 상방향 경사면가공을 하였을 경우 가장 양호한 가공상태를 얻을 수 있었다. Tool deflection of ball-end mill in pencil cutting for free-form surface according to cutting condition was measured by eddy-current sensor attached to the spindle of machining center, and analyzed by median filter. The best way to minimize the tool deflection in corner when pencil cutting is to decrease feedrate during cutting. Tool deflection was decreased for down-cutting rather than up-cutting due to the smaller cutting force. The method of upward ramp cutting with down-cutting represents the optimum machining strategy for pencil cutting in the die and mould making industry.

고정희 시의 계절 상징 연구

윤경숙 문창어문학회 2009 문창어문논집 Vol.46 No.-

충수돌기에 발생한 비호지킨 림프종 1예

정유경,이미숙,김윤식,이미자,전호종 조선의대 1995 The Medical Journal of Chosun University Vol.20 No.2

Si-Schottky障壁型의 大陽電池 製作에 관한 硏究

李相潤,羅炳旭,朴德圭,李鍾德,金奎用,玄東杰,禹洪,盧景錫 慶北大學校 物理化學硏究所 1981 硏究論文集 Vol.1-2 No.-

The characteristics of these Si-schottky barrier type and Heterojunction type solar cells are as follows; 1. SnO_2/n-Si Heterojunction Solar Cells Fabricated by Spray Pyrolysis Method SnO_2 film were deposited on the (100) or (111) surface of Si single crystal by the spray pyrolysis method. The best SnO_2/n-Si solar cell has a good performance, with an open-circult voltage: Voc.=0.45V, short circuit current: Isc.=35.5㎃, fill factor: FF.=0.64, and conversion efficiency: η=10.2% under 98㎽/㎠ irradiation of AMl. The spray pyrolysis described in this paper is simple and suitable for mass production. One possibility for cost reduction lies in this method of junction fabrication, and the idea of simply deposited SnO_2/n-Si junction is, at first sight, very attractive. Hence the SnO_2/n-Si Solar Cell and the effectiveness of this method may be of great value in some future production of low-cost solar cells. 2. In_2O_3: Sn Heterojunction Solar Cells Fabricated by Spray Pyrolitic Method Highly conductive and transparent thin films of In_2O_3: Sn (ITO) are fabricated by spray pyrolytic method. The parameters of these thin films are as follows: resistivity ρ = 1.5×10 exp (-3) Ω·㎝, carrier concentration n = 7.5×10 exp (19) cm^-3, mobility μ = 55.5 ㎠/V·sec and transmission 85-90% over visible and long wave-length region. These thin films have simple cubic system with lattice constant 10.2Å. In_2O_3: Sn/n-Si heterojunction solar cells are fabricated, depositing In_2O_3: Sn (ITO) thin films on n-Si substrates with orientation(100) and resistively 2-3Ω, ㎝ by spray pyrolitic method. Under AMl sunlight simulator, the parameters of the excellent cell obtained has open-circuit voltage Voc=0.52V, short-circuit current I_sc=39.0㎃, fill factor: F.F=0.60 and conversion efficiencyη=12.1%. 3. Al/p-Si MOS Solar Cells Fabricated by Vacuum Evaporation Method Al/p-Si MOS solar cells, consisting of Al on P-tupe silicon with a thin interfacial layer of SiO_2 have been found to have good light conversion efficiency for solar radiation. The effects of the oxide layer thickness between metal and substrate were investigated. Under AMl simulated sunlight illumination the best cell has open circuit voltage Voc=0.50V, short-circuit current I_sc=26.3㎃/㎠, fill-factor FF=0.70 and conversion efficiency η=9.2%. 4. Cr-Cu/P-Si MOS Solar Cells Fabricated by Vacuum Evaporation Method Cr-Cu/p-Si MOS Solar cells, consisting of Cr-Cu on p-type silicon with a thin interfacial layer of SiO_2 have been found to have good light conversion efficiency for solar radiation. The effects of the oxide layer thickness between metal and substrate were investigated. Under AMl simulated sunlight illumination the best cell has open circuit voltage Voc=0.49V, short-circuit current I_sc=26.4㎃, fill-factor: FF=0.72 and conversion efficiency η=9.3%.

Pd 촉매 하에서 알릴 디올의 아릴화 연구 : 방향족 히드록시 케톤 및 페닐 치환된 알릴디올의 합성 Highly Selective Synthesis of Phenyl-Substituted Allylic Diols

강석구,정경윤,박찬희,남궁은영,김태현 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.2

The coupling reaction of iodobenzene with allylic diols in the presence of Pd(OAc)_2 and nBu_3P as catalysts using K_2CO_3 as base afforded the phenyl-substituted allylic diols. However, under the same reaction conditions with Et3N as base, phenyl-substituted α-hydroxy ketone was obtained.

선천성 톡소플라스마증(Taxoplasmosis)의 실험적 연구

車錫奎,任敬一,李根泰,尹德鎭 연세대학교 의과대학 1982 연세의대논문집 Vol.15 No.1

뚜렷한 입체 선택성을 갖는 알릴 디올의 고리 카보네이트와 아세토니드의 Wacker 산화 반응 연구

강석구,정경윤,정재욱,남궁은영,김태현 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.1

Palldium(Ⅱ) 촉매 하에서의 말단 알릴 디올의 고리 카보네이트와 아세토니드의 산화반응은 anti-Markovnikov hydation에 의해 알데히드 또는 α,β-불포화 알데히드 만이 생성되었다. 치환된 알릴 디올의 분자내 이중 결합의 반응으로는 (E)-알릴 디올의 경우에 β-케토 생성물을, 반면에 (Z)-알릴디올의 경우엔 α-케토 생성물을 얻을 수 있었다. 치환된 알릴 디올의 고리 카보네이트와 아세토니드에서는 각각 β-케토 화합물과 α,β-케토 화합물 들이 생성되었다. Palladium(Ⅱ)-Catalyzed oxidation of acetonides or cyclic carbonates of terminal allylic diols afforded aldehydes or α,β-unsaturated aldehydes as the sole products, resulting of anti-Markovnikov hydation. For the internal olefins of the substituted allylic diols, (E)-allylic diol provied β-keto-product, whereas (Z)-allylic diol affored α-keto-product. The acetonides and cyclic carbonates of the substituted allylic diols yielded β-keto-products and α,β-unsaturated ketones, respectively.

백삼에 있어 수침처리가 체형 및 사포닌 함량에 미치는 영향

한윤경,이이,이문순,권숙희,정찬문 충북대학교 연초연구소 2009 煙草硏究 Vol.22 No.-

본 연구는 수침 처리가 백삼제품의 원형복원에 미치는 영향을 조사하여 백삼제품 제조에 사용한 원료수삼의 품질을 평가하기 위한 기초자료를 얻고자 수행하였던 바 결과를 요약하면 다음과 같다. 백삼의 수침처리는 원료수삼과 같은 수준으로 원형을 복원할 수 있어 제품에 사용된 원료수삼의 뇌두의 경흔적, 동체부위의 피해정도 그리고 내부조직의 나이테 관찰이 용이하여 연근판별 및 품질평가가 가능하였다. 백삼제품의 ginsenoside 함량은 제조회사에 따라 다소 차이가 있었으며 panaxadiol계 사포닌은 ginsenoside-Rb₁이 많고, panaxatriol계 사포닌은 ginsenoside-Rg₁이 높게 나타났다. 그리고 수침에 의한 백삼의ginsenoside 함량은 수침온도가 증가할수록 감소하는 경향이었다. This study was conducted to investigate the effects of soaking treatment in white ginseng and evaluated quality evaluation of raw ginseng and ginsenoside. Restoration to the original state of the raw ginseng can be achieved by soaking treatment in white ginseng. Stem vestige at rhizome and damage of main root of the swelled white ginseng was examined by eyes and annual rings by microscope easily. Soaking treatment made it easy to be examined the identification of root age and quality evaluation of white ginseng. The content of ginsenoside showed difference among the three products. The content of ginsenoside-Rb1 was highest among the constituents of protopanaxadiol saponin and the content of ginsenoside-Rg1 among that of protopanaxatriol saponin. The higher the soaking temperature was, the lower the content of ginsenoside in the white ginseng was.