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윤형식 외 한국버섯학회 2010 한국버섯학회지 Vol.8 No.3
팽이버섯 병재배에서 재배사 내의 탄산가스 농도를 조절하여 소비자 요구에 맞는 버섯을 안정적으로 생산하고, 생육과 수확에 관련하여 적정기준 설정을 위해 실험을 수행한 결과이다. 공시균주 특성 값을 종합해보면 탄산가스 농도가 높아지면 초발이소요일수, 생육일수, 수확일수는 증가하는 경향이고, 백색계열보다 갈색계열이 탄산가스 농도에 상관없이 초발이소요일수, 생육일수, 수확일수가 전체적으로 짧으며, ASI 4103 균주와 같이 균주의 유전적 형질이 재배적 특성에 많은 영향을 주는 것으로 판단된다. 병당 수량성은 균주에 따라 처리농도에 따른 증감의 차이는 있으나, 전반적으로 탄산가스 농도가 높아지면 수확량은 감소하였다. 개체중은 균주에 따라 약간씩 차이는 있으나 대체적으로 탄산가스 농도가 증가하면서 약간씩 감소하는 경향이다. 병당 개체수에서는 균주간의 차이가 커서 탄산가스 농도 증가에 따른 일정한 경향을 확인 할 수 없었다. 자실체의 수분함량은 균주에 따라 약간의 차이는 있으나 탄산가스 농도의 증가에 따라 수분함량이 감소되었다. This study was performed to determine the optimal concentration of carbon dioxide, which effects mushroom growth and yield. It was shown that the periods for fruiting initiation, growth and harvest of Flammulina velutipes were increased when the CO₂ concentration was raised. In general, those characteristics were less affected in brown strains than in white ones. Especially brown strain ASI4103 was susceptible to changes in CO₂ concentration. Yields per bottle and individual mushroom weight also decreased in most strains when CO₂ levels increased. We were unable to designate any tendency in the number of fruiting bodies due to the large variation within each respective strain. Finally, water contents in the fruiting bodies were found to decline under high CO₂ concentrations.
고정층 액상흡착탑내의 합성흡착제/콜리딘계의 열역학적 흡착특성
이성식,김형준,이봉국,최정균 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.2
Adsorption Equilibria and Kinetics of collidine in a aqueous solution onto the synthetic resin adsorbent were carried out in a fixed bed absorber at 278, 288, 298 anti 308K for various concentration ranges respectively. The effective intraparticle diffusivity, D_(e), based on the concentration difference in the liquid phase, was determined by comparing experimental and theoretical uptake curves. The ratio of the effective diffusivity to moleculer diffusivity, D_(e)´/DAB were independent of the amount adsorbed and temperature for synthetic resin/collidine system. The result supported the concept that migrated of inter-microparticle gaps predominates over effective intraparticle mass transfer within synthetic porous adsorbent. Amount adsorbed q_(e) was correlated Q_(st) = 15.35 + [(-4.14) - q_(e)] and E_(a) = 6.28 + [(-1.671 q_(e)] with heat of adsorption(Q_(st)) and activation energy(E_(a)).
이성식,김형준,최정균 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.1
Liquid phase adsorption equilibria of amines in aqueous solution onto high silica zeolite pellets(HSZ) experimentally determined by use of a batch bottle technique at 298K. The data for HSZ / amines system was fit to 4 isotherm equations to determine an optimum equation. The best equation for the amine adsorption isotherms onto HSZ is the Freundlich isotherm. The products k·n of the Freundlich constant increase with the boiling point T_B, molecular volume V_m and dissociation constant pK_a of amines.
Paper Chromatography에 依한 鹽漬魚類의 水溶性遊離 Amino acid에 關한 硏究 (Ⅰ)
尹衡植 慶北大學校 1962 論文集 Vol.6 No.-
The animal proteins are better than plant proteins is due to the quantity and quality of its unit, amino acid. To nutritonal field eight kinds of amino acid are indispensable for their health. Animal protein contains comparatively equal amount of each amino acid, while that of plant, grating its contents are equal in equality, is not proportioned in quality, protein must be dissolved before it, in body, can be synthesized into body protein. Any food that contains free amino acid thus dissolved will be a good kind of food. In my previous research about nutrition a situation in the rural areas I find that the amount of animal food taken by the people in those areas is very little and that the kinds of fish they most frequently have are salted shrimp and salted sardine and this is because these items are easy to storage and savoury by outolysis. So I have applied chromatography to water soluble free amino acid of salted fishes soluble in water and have been able to form a guess that it contains five kinds of amino acid including those indispensable ones.
민형식,이광진 충남대학교 의과대학 지역사회의학연구소 1986 충남의대잡지 Vol.13 No.1
27 cases of femoral neck fractures which were treated in department of orthopaedic surgery of CNUH from 1979 Jan. to 1985 Jan, were analysed clinically and radiologically. Very sensitive, noninvasive, simple and easily reproducible bone scanning with 99m Tc was introduced fro early diagnosis of avascular necrosis as a complication of femoral neck fracture. The results were as follows: 1. The most common cause of fracture was slipping and falling down. 2. In classification, transcervical and subcapital fractures were most common in anatomical classification, Pauwels' type I in Pauwels' classification and Garden stage 3 in displacement. 3. Singh index was decreased according to increase of physiological age. 4. Avascular necrosis develops commonly in Pawels' type 3, Garden's stage 4 and subcapital fracture. 5. Satisfactory results were obtained 75% in internal fixation and 85% in head replacement. 6. Bone scan is considered to be significant technique for early detection of vascular impairment to the femoral head after femur neck fracture, and is important in selecting the method of treatment according to results of bone scan.
Cl^- 및 SO^--_4 施肥가 栽培作物의 酵素活性에 미치는 影響
尹衡植 慶北大學校 生産技術硏究所 1969 生産技術 Vol.3 No.-
Comparative effect of fertilizers containing sulphur and chlorides on enzymic activity in cultural plants, corn, lettuce and spinach, respectively by sand and soil culture, were investigated. The results were as follows; 1. The activity of carbohydrase due to sulphate-containing fertilizers is higher than that of chloride-containing fertilizers. 2. Enzymic activity obtained by sand culture is relatively higher as compared with that of soil culture. 3. As a whole, fertilizers containing chlorides inhibited the activity of enzymes in cultural plants more than sulphate fertilizers as in parts of corn.
三次元切削에서 表面거칠기와 切削力에 영향을 미치는 因子에 관한 硏究
李炯植,柳能秀 연세대학교 산업기술연구소 1978 논문집 Vol.8 No.1
Three dimensional cutting experiments were carried out in order to find out the effects of the cutting condition fators on the surface roughness of work and cutting force. For this experiments, SM 45c structural steel workpiece and single point tool with cemented carbide tip were used. Five factors, namely, cutting speed, feed, depth of cut, tool nose radius and tool angles were taken as the variables of cutting condition. The most effective factor for surface roghness and cuttive force were tool angle Ce. and depth of cut repectively. However, there is a critical value in cutting speed for the best surface finish. The relation of the five factors with surface roughness and cutting force were shown in three dimensional graphs, and these graphs will be generally applicable to determine the optimum cutting conditions.
栽培中 Tomato 果實의 窒酸鹽 및 亞窒酸鹽과 Ascorbic acid의 含量變化
尹衡植,申大休,崔載春,權重浩 慶北大學校 1982 論文集 Vol.33 No.-
This experiment was carried cut to investigate the relationship between nitrite and ascorbic acid contents in two kinds of tomato fruits namely, Bokwang, Suekwang, which were different distinguished in growth periods during culture. The results obtained were as follows. The nitrate content in two kinds of tomato fruits was relatively higher in Bokwang than Suekwang. It indicated high content as 5.8-12.5 ppm in flesh and 0.3-2.5 ppm in gelatinous pulp. In the beginning of growth period, nitrate content in flesh was 50-62.5ppm, and in the latter period was 21.3-38.4ppm. In the case of gelatinous pulp, it was decreased from 14.0-16.2ppm in the beginnig period to 9.3-10.7ppm in the latter period. In the case of nitite, there was no difference between two varieties. Nitrite content during growth increased from 0.15ppm to 0.21ppm in flesh and from 0.06ppm to 0.1ppm in gelatinous pulp. There was no difference between two varieties during growth in total ascorbic acid content and its concentration was 24.2-27.5mg in gelatinous pulp and was 13.8-18.6mg in flesh. The difference between two parts was about 10mg. In the changes of nitrate and nitrite content in tomato fruits, nitrate was decreased, whereas nitrite content was increased. In the changes of nitrate and ascorbic acid content in tomato fruits, nitrate content was decreased but that of ascorbic acid was increased slightly. In the changes of nitrite and ascorbic acid content in tomato fruits, nitrite content was increased and that of ascorbic acid was slightly increased too.