• 한국약용작물학회지
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• 제4권4호
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• pp.329-332
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• 1996

황기의 수확시기(收穫時期)에 따라 생육(生育) 및 수양(收量)의 변화(變化)를 알아보고자 1년생(年生) 및 2년생(年生)에 대하여 10월(月) 10일(日), 10월(月) 25일(日), 1월(月) 10일(日) 등 3회(回)에 걸쳐 수확시기(收穫時期)를 달리 하여 시험(試驗)해 본 바 다음과 같은 결과(結果)를 얻었다. 1 황기 1년생(年生) 수확시(收穫時) 초장(草長), 경경(莖徑), 마디수, 분지수(分枝數), 협당립수(莢堂粒數), 건물중(乾物重)등은 수확시기(收穫時期)에 따른 차이가 없었으나, 근장(根長)과 근경(根徑)은 10월(月) 25알(日) 수확(收穫)까지는 진전(進展)이 없다가 11월(月) 10일(日) 수확(收穫)에서는 증가(增加)되었으며, 건근중(乾根重)과 수양(收量)은 11월(月) 10일(日) 수확(收穫)까지 수확시기(收穫時期)가 늦어 질수록 계속 증가(增加)되는 경향(傾向)으로 근부(根部) 생육(生育) 및 수양(收量)은 지상부(地上部) 생육(生育)과는 관계없이 수확(收穫) 시기(時期)가 늦어질수록 증가(增加)되었다 2. 황기 2년생(年生)의 수확시기별(收穫時期別) 생육특성(生育特性)에서 초장(草長), 잔경(盞徑), 근장(根長). 근경(根徑) 등은 10월(月) 25일(日) 수확(收穫) 까지는 약간 증가(增加)되었으나 마디수, 분지수(分枝數), 화잔수(花盞數), 엽수(葉數), 건물중(乾物重) 등은 수확시기(收穫時期)에 따른 차이는 없었으며, 건근중(乾根重)과 수양(收量)은 1년생(年生)과 마찬가지로 11월(月) 10일(日) 수확(收穫)까지 계속 증가(增加)되는 경향(傾向)이었다. 3. 재배기간(栽培期間)(1, 2년생(年生))에 따른 엑스함양(含量)은 차리(差異)가 없었지만 수확시기별(收穫時期別)로는 11월(月) 10일(日) 까지 수확시기(收穫時期)가 늦어질수록 엑스함양(含量)이 약간씩 증가(增加)하는 경향(傾向)이었다. 이상(以上)의 결과(結果)에서 볼 때 황기의 수확시기(收穫時期)는 늦어질수록 수양(收量)이 증가(增加)되므로 기온하강(氣溫下降)에 의하여 수확(收穫) 작업(作業)에 지장(支障)을 받지 않을 정도(支障)인 11월(月) 중순경(中旬傾) 수확(收穫)하는 것이 적합(適合)하다고 생각된다.

• 한국식품조리과학회지
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• 제13권4호
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• pp.396-401
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• 1997

발효시간을 0∼10시간으로 달리하여 제조한 증편의 발효시간에 따른 물성변화를 검토하였다. 증편의 침입도는 발효시간에 따라 크게 증가하여 발효 7시간에 최대값 134.5를 기록하였다. 비체적과 총공극율도 발효 진행에 따라 크게 증가하여 발효 6시간과 4시간 경에서 각각 최대값 3.5 ㎤/g-dry matter와 54.9%를 나타내었으나 그 이후는 감소하였다. X-ray 회절도상 증편시료 모두 잔존 peak가 관찰되었고 모든 발효시료의 증편단면에서 큰 공극과 작은 공극을 볼 수 있었다.

• 전기학회논문지P
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• 제65권4호
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• pp.262-267
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• 2016

This paper describes a design of a hair drier to improve its performance. the performance of the hair drier can be improved by increasing the wind velocity of its discharge port. the design of the hair drier is accomplished by using the CFD. the validity of design results were verified by comparison with the dry change of the hair drier. In this paper, the initial condition of the applied hair drier is as follows, the number of the blade is 9, the diameter of the suction port is 40[mm], the tip clearance is 12.5[mm], the con angle is $28.5^{\circ}$ and the fan angle is 27.5R. From design results, the enhanced condition of the hair drier can be obtained as follows, the number of the blade is 3, the diameter of the suction port is 50[mm], the tip clearance is 10.5[mm], the con angle is $21.5^{\circ}$ and the fan angle is 75R. At the enhanced condition of the hair drier, the wind velocity of the hair drier is 29[%] increase, and the dry time is 40[%] increase compare to the initial condition of the hair drier.

• Asian-Australasian Journal of Animal Sciences
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• 제12권7호
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• pp.1063-1069
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• 1999

Wheat straw samples (3-4 cm) were sprayed with solutions of urea (U) alone or with a dry addition of garden soil (GS), midden soil (MS), soya bean meal (SM) or jack bean meal (JM) as crude urease sources and with a pure urease (UR) enzyme. Each of the urease sources was included at two levels: 30 and 60 g/kg except pure urease, which was added at a level of 2.5 & 5.0 g/kg treated straw dry matter. Untreated straw without urease source was used as a control. After treatment, samples were sealed in polythene bags and stored for 2, 7, 14, 21 and 35 days at $19{^{\circ}C}$. The urease sources, their levels and treatment time produced significant effects on ammonia production (p<0.01). The addition of urease offered more flexibility in hydrolyzing urea in the shortest possible time. Incorporation of soya bean and jack bean meal was effective in reducing the modified acid detergent fiber (MADF) content of straw and the same time increasing organic matter (OM) digestibility. Overall effect, addition of soya bean to urea at a ratio of 1:1 appeared to be the most satisfactory urease source for the treatment of urea and wheat straw.

• 대한치과교정학회지
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• 제23권2호
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• pp.283-294
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• 1993

The friction of orthodontic appliances is recogonized to be detrimental to tooth movement. The purpose of this study was to determine the magnitude of frictional force changes between bracket$(018'\times025'\;solt)$ and orthodontic wires(stainless steel, cobalt-chromium, and $\beta-titanium$, $017'\times0.25'$ rectangular) with time. The wire was secured in the bracket slot with a elastomeric ligature. Frictional forces were measured by universal testing machine. The following conclusions were obtained. 1. The frictional forces under dry condition were greater than those in saliva. 2. The frictional forces produced by cobalt-chromium wire were less than those generated by stainless steel and $\beta-titanium$ wire. 3. The frictional forces increased progressively with time, and the amount of increase on first two weeks was greater than on last two weeks. 4. The change of frictional force under dry condition was greater than in artificial saliva.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 춘계학술대회 논문집 유기절연재료 전자세라믹 방전플라즈마 일렉트렛트 및 응용기술
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• pp.31-35
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• 2002

It is hard to expect excellent electrical, mechanical and chemical properties from most of the composite materials presently used as insulators due to insufficient wettability property caused by the difference of interfacial properties between the matrix material and the reinforcer. Therefore, various interfacial coupling agents have been developed to improve the interfacial properties of composite materials. But if the wettable coupling agents are used outdoor for a long time, change in quality takes place in the coupling agents themselves, bringing about deterioration of the properties of the composite materials. In this study, composite materials were put to dry interfacial treatment by use of plasma technology. It has been presented that the optimum parameters for the best wettability of the samples at the time of generation of plasma were oxygen atmosphere, 0.1 torr of system pressure, 100 W of discharge power, and 3 minutes of discharge time. Also, the surface resistance rate and dielectric property were improved.

• 한국의류학회지
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• 제33권2호
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• pp.222-229
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• 2009

The natural dyeing of cotton fabrics with Rumex crispus L. root extract was investigated. The dyeability of Rumex crispus L. root extract was evaluated with conditions of concentration, temperature, time, repeat-numbers, pH, mordants variables, methods of mordanting, color fastness and antibacterial activity, etc. The maximum V-visible spectrum possessed absorption band of Rumex crispus L. extract appeared at 274nm and 336nm. The amount of dyes extracted was increased with extracting concentration, temperature and time. The K/S value increased with increasing dyeing concentration and repeat-numbers. The K/S value increased with increasing dyeing temperature and time, the exhaustion was saturated in $90^{\circ}C\;and\;80min$, respectively. Surface colors of fabrics dyed with pH 3, 7, 11 extract were RP-R-YR-Y range. The light fastness and washing fastness showed good results in Fe-mordanted. The dry leaning fastness appeared more than 4 grade. Rubbing fastness was better in dry methods han that in wet methods. In the result of antibacterial activity, the decrease rate was 9.9% to Staphylococcus aureus with the dyed fabric of cotton.

• 한국초지조사료학회지
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• 제3권2호
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• pp.86-91
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• 1983

Orchardgrass 단파초지(單播草地)의 최고총생산수량(最高總生産收量)과 질적향상(質的向上)을 위한 수확적기(收穫適期)를 장(張) (1971)의 총생산수(總生産收) 양식(量式)에 의하여 이론적(理論的)으로 분석(分析) 연구(硏究)하였다. Orchardgrass초지(草地)의 형태학적(形態學的) 특징(特徵)으로 0% 개화기(開花期)에 목확(牧穫)하는 것이 IDV와 CP의 높은 수준(水準)과 함께 최대건물생산량(最大乾物生産量)을 달성(達成)할 수 있다는 것으로 판단(判斷)되었다. 그러나 orchardgrass는 1차예취후(次刈取後)에는 개화(開花)하지 않기 때문에 그 이후(以後)에는 극대치(極大値)의 감치기로 대치(代置)할수 있다고 판정(判定)되었다.

• 한방재활의학과학회지
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• 제18권2호
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• pp.169-191
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• 2008

Objectives : This study was performed to report the present situation of the cupping treatment to make standardization of cupping treatment in Korea. Methods : We searched relevant case reports, surveys, and review articles using a databases of online bibliography. And we had research to oriental medical doctor with questionnaire about the cupping treatment. Results : 1. Cupping treatment is used for diagnoisis, protection and treatment for many kinds of diseases such as musculoskeletal diseases, internal diseases, sequela of cerebral attacks and so on in Korea. 2. Adequate cupping area is the area of lesion. 3. Cupping time and pressure are various. 4. Adequate amount of venesection is 10cc. 5. Adequate dry cupping term is 1 time/day and adequate wet cupping term is 1 time/2~3days. 6. Cognition of adverse reaction of cupping treatment is different among the doctors. 7. Method of disinfection of cup is different among the doctors. Conclusions : The result of this study will help to make the a guideline of cupping treatment. And we have to go ahead studying to make standardization of cupping treatment.

• 농업과학연구
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• 제38권1호
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• pp.87-94
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• 2011

Flavonoid contents of common buckwheat (cv. Kitawase) and tartary buckwheat (cv. Hokkai T 8, Hokkai T 9 and Hokkai T 10) were determined by high-performance liquid chromatography (HPLC). Moreover, they were measured at different plant developments such as 10, 18, 20, 22 and 30 days after sowing (DAS) and with plant parts including leaf, stem and flower harvested at 30 DAS. Total flavonoids including chlorogenic acid, four kinds of C-glycosylflavones (orientin, isoorientin, vitexin, isovitexin) and rutin of tartary buckwheats (range of 44.2-54.7, mean 44.2) were found 35% higher than those of common buckwheat (28.9 mg/g dry wt.). Among them, rutin was measured above 80% of total flavonoid contents. The other flavonoids (chlorogenic acid and four kinds of C-glycosylflavones) presented the highest level at 10 DAS and decreased according to plant developments. On the other hand, rutin content of Kitawase presented the highest level (33.6 mg/g dry wt.) at 22 DAS and decreased up to 30 DAS. Rutin content in tartary buckwheat temporarily decreased from 10 to 18 DAS and then reversely increased up to 30 DAS presented the highest level as 'U' curve. In Hokkai T 10, rutin content was found the highest level (53.8 mg/g dry wt.) at 30 DAS. In different plant parts harvested at 30 DAS, rutin content of leaf (range of 42.8-68.0, mean 57.0) was 5.3-fold higher than that of stem (range of 8.0-15.9, 10.8 mg/g dry wt.), regardless of cultivar. Significantly, rutin content (78.7) in the flower of Kitawase was 1.8 times higher than in the leaf and 9.8 times in the stem. Especially, chlorogenic acid content (14.6 mg/g dry wt.) in the flower of Kitawase was 63-fold higher than in the leaf, and 20-fold in the stem.