• 제목/요약/키워드: No.of Cut

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취학전 아동의 상의구성을 위한 여유량 연구 (A Study on the Garment Ease for Pre-School Children's Upper Clothing Construction)

  • 박찬미;서미아
    • 복식문화연구
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    • 제1권2호
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    • pp.145-157
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    • 1993
  • This study aimes to investigate the garment ease of pe-school children's clothing in accordance with arm movement. The experiment was done with 4 per-school children fro mage 3 to age 5, and 3 types of experimental clothes were made ; sleeveless, half sleeve, and long sleeve. The waist pattern and the sleeve pattern of each experimental clothes has no garment ease. And experimental clothes were examined to obtain the necessary ease of armcye line and waist lien by cross-cut method. The results of investigation can be summarized as follows ; 1. The resulting movement ranges of experimental clothes with no garment ease were 131.5°(sleeveless), 71.75°(half sleeve), and 62.25°(long sleeve). 2. The size order of cross-cut opening of waist lien movement were (side>front>back), and (half sleeve>long sleeve>sleeveless). 3. When the base point of measurement was set to armpit point by arm the latitudinal length of cross-cut opening of armcye line by arm movement was (anterior armpit part > posterior armpit part), and longitudinal length of cross-cut opening was (upper part>lower part).

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초정밀 절삭에 있어서 임계절삭깊이에 대한 연구 (A Study on the Critical Depth of Cut in Ultra-precision Machining)

  • 김국원
    • 한국정밀공학회지
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    • 제19권8호
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    • pp.126-133
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    • 2002
  • The cutting thickness of ultra-precision machining is generally very small, only a few micrometer or even down to the order of a few nanometer. In such case, a basic understanding of the mechanism on the micro-machining process is is necessary to produce a high quality surface. When machining at very small depths of cut, metal flow near a rounded tool edge become important. In this paper a finite element analysis is presented to calculate the stagnation point on the tool edge or critical depth of cut below which no cutting occurs. From the simulation, the effects of the cutting speed on the critical depths of cut were calculated and discussed. Also the transition of the stagnation point according to the increase of the depths of cut was observed.

집중호우를 고려한 절토사면의 안정성 확보를 위한 설계방안 (Design Method for Stability in Cut-Slope under heavy rainfall)

  • 이풍희;김종흔;전경수
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2002년도 가을 학술발표회 논문집
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    • pp.16-26
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    • 2002
  • As the slope designs had simply followed some slope guidelines during 1960's∼1970's, of which the main purpose was to estimate earth work quantities in the feasibility stage, slope failures had been experienced in Korea Highways. Various site investigation methods for highway cut-slopes have been continuously developed, and major cut-slope failures caused by slope instability have rapidly reduced. The failure mode of recent cut-slope failures in highways during typhoon RUSA No.15. featured a debris flow in soil mass activated by flowing water. The study of the surface soil scour and the debris flow caused by heavy rainfall must be done to protect the cut-slope failures in the future

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1-MCP 처리가 알스트로메리아, 금어초, 다알리아, 나리 절화의 수명에 미치는 영향 (Effects of 1-MCP on Vase Life of Cut Alstroemeria, Snapdragon, Dahlia, and Lily)

  • 남진수;윤혜림;심성임;김홍열;손병구;허무룡;오욱;임기병
    • 화훼연구
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    • 제19권3호
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    • pp.139-143
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    • 2011
  • 본 연구는 에틸렌 작용 억제제 중 하나인 1-methylcyclopropene(MCP)이 알스트로메리아, 금어초, 다알리아 및 나리의 절화수명에 미치는 영향을 알아보기 위하여 실시하였다. 4종의 절화에 1-MCP 250, 500, 750 ppb를 각각 12시간 처리하였다. 알스트로메리아의 경우 개화소요일수는 대조구와 1-MCP 모든 처리구에서 유의차가 없었다. 절화수명은 대조구보다 처리구에서 2일 이상 연장되었으며, 250 ppb 처리구가 17.1일로 가장 길었다. 금어초는 잔여소화율이 대조구와 비교하여 1-MCP 모든 처리구에서 높아졌다. 그러나 절화수명은 대조구와 처리구 사이에 유의차가 없었다. 다알리아의 절화수명은 1-MCP 처리시 대조구보다 2일 정도 연장되었다. 수분흡수량은 절화수명과 반대 양상을 나타내었다. 나리의 절화수명은 대조구 12.6일과 비교하여 모든 처리구간 유의차가 없었다. 수분흡수량의 경우 대조구와 비교할 때 1-MCP 750 ppb 처리구에서 약 3 mL 더 많았다.

자생 및 도입 켄터키 블루그래스 품종의 훼손비탈면 녹화 특성 (A Vegetation Characteristics of Native and Introduced Kentucky bluegrass Cultivars Seeded on Cut-Slop)

  • 정대영;심상렬;안병준
    • 한국환경복원기술학회지
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    • 제12권1호
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    • pp.82-91
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    • 2009
  • Research was initiated to investigate vegetation characteristics of native ('Pureundle' and 'Sewon') and introduced ('Brilliant' and 'Midnight') Kentucky bluegrass (KB, Poa pratensis L.) varieties by soil-seed applying system on a cut-slope in May 17, 2008. There were no statistic differences observed in soil hardness and soil moisture content while significant differences were observed in surface coverage rate, height and disease occurrence in native and introduced KB varieties. The introduced 'Brilliant' KB was highest in the surface coverage rate from the early period of seeding to August 11, 2008. The surface coverage rate of introduced varieties were high when compared to native varieties in their early growth stage. But native varieties reached to equal surface coverage rate with the introduced varieties when three months after seeding. The height of 'Pureundle' and 'Brilliant' KBs were high compared with Midnight and Sewon KBs. 'Pureundle' and 'Brilliant' KBs were damaged by disease whereas there were no disease occurrence in 'Midnight' and 'Sewon' KBs. Probably, the disease occurrence was close related with the height of KBs not with native and introduced KB varieties. These results indicate that the growth of KB on a cut-slope are statistically affected by varieties in early growth stage of this experiment but reach equal rate between native and introduced KB varieties in three months after seeding. This growth characteristics implies the huge potential of native KB varieties seeding for cut-slope vegetation. Considering that native KB varieties are adapted to a environment and have no risk of causing disturbance to the ecosystem compared to the introduced KB varieties, the use of them as native varieties for a cut-slope vegetation can be increased.

에너지 저장장치를 갖는 피크컷 세이버 시스템의 출력특성 연구 (Output Characteristics of Peak-Cut Saver System with Energy Storage Device)

  • 서현욱;한동화;이영진;전태원;최규하
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2011년도 추계학술대회
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    • pp.231-232
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    • 2011
  • It is very important thing to efficiently utilize the solar power. The conventional solar power system has no energy storage device. So the conventional system cannot cut the peak load. In this paper, the solar power system with the energy storage device and the operation algorithm of peak cut function was proposed to cut the peak load. The algorithm principle is proposed based on the insolation curve and load curve. The simulation and experiment was performed to demonstrate the validity of the peak cut algorithm.

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일본 도시철도 개착식 터널의 내진성능 평가 방법에 대한 고찰 (A Study on Evaluation Method of Seismic Performance on Cut and Cover Tunnel of Subway in Japan)

  • 박범호;이우철;김진호;임남형
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2009년도 춘계학술대회 논문집
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    • pp.15-19
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    • 2009
  • Due to the Japan's Kobe earthquake in 1995, a cut-and-cover tunnel, which is one of subway facilities, collapsed unexpectedly. As a result, also in Korea, seismic performance needs to be secured for the cut-and-cover tunnel and currently, the subway seismic design standard is based on the seismic performance. However, there is no standard for the damage level or stability level of a member for securing the seismic performance, and the definition of multi-level seismic performance is not sufficient. By contrast to this situation, in the Japan's evaluation method of seismic performance, design earthquake ground motion having reflected there into the subway driving stability is clearly defined and the seismic performance required for structures is classified in detail. This study analyzes the Japan's systematic evaluation method of seismic performance for cut-and-cover tunnels of subway.

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버어리종 대말림 건조 중 곁순처리에 따른 엽중 화학성분 변화 (Effects of the Suckers on Chemical Components of Leaves during Stalk-Cut Curing in Burley Tobacco)

  • 최상진;석영선
    • 한국연초학회지
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    • 제24권1호
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    • pp.32-37
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    • 2002
  • This study was carried out to investigate the effects of suckers on chemical components with vertical and horizontal hanging method during stalk-cut curing in burley tobacco. The elongation and dry weights of suckers were increased until 14 days in vertical hanging method, and until 7days in horizontal hanging method after the beginning of curing. The contents of nicotine, protein-N and $NH_4$-N were decreased at treatment of more suckers during the curing. However, there was no significant difference by the hanging method. Solanone, damascenone, megastigmatrienone and 4-methyl phenol were increased gradually during curing. Those were increased with treatment of fewer suckers compared to treatment of more suckers. There was no significant difference by the hanging method.

수확전(收穫前) Daminozide의 살포(撒布)와 수확후(收穫後) 절화보존제(切花保存劑)의 처리(處理)가 절화백합(切花百合)의 수명(壽命)과 Ethylene발생(發生)에 미치는 영향(影響) (Effects of Daminozide Spray and Floral Preservatives on Longevity and Ethylene Production of Cut Lily (Lilium longiflorum Thunb.))

  • 김영래;이종석
    • 농업과학연구
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    • 제9권2호
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    • pp.484-493
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    • 1982
  • 수확전(收穫前) daminozide의 살포(撒布)와 수확후(收穫後) 보존용액(保存溶液)의 처리(處理)가 절화백합(切花百合)의 수명(壽命)과 품질(品質) 및 ethylene 발생(發生)에 미치는 영향(影響)을 밝히고 아울러 ethylene과 절화백합(切花百合)의 노화(老化)와의 관계(關係)를 검토(檢討)하고자 품종(品種) Georgia를 공시(供試)하여 몇가지 보존용액(保存溶液) 처리(處理)와 damiozie 엽면살포(葉面撒布) 및 ethephon 처리(處理)를 하여 다음과 같은 결과(結果)를 얻었다. 1. 절화백합(切花百合)에 sucrose, $AgNO_3$, AS, BA 용액(溶液)을 단독(單獨) 또는 혼용처리(混用處理)하였던 바 단독처리(單獨處理)에서는 $AgNO_3$ 25~50 ppm구(區)가 흡수량(吸水量)이 많고 신선중(新鮮重)이 무거웠으며 수명(壽命)도 가장 길었다. 혼용처리(混用處理)에서는 sucrose 2.5%+$AgNO_3$ 50 ppm+AS 200ppm+BA 10 ppm 처리구(處理區)가 절화백합(切花百合)의 품질향상(品質向上)과 수명연장(壽命延長)에 가장 효과적(效果的)이었다. 2. 수확(收穫) 2일전(日前) 봉오리 상태(狀態)의 백합(百合)에 daminozide 500 ppm을 살포(撒布)한 후(後) 수확(收穫)하여 보존용액(保存溶液)(sucrose 5%+$AgNO_3$ 50 ppm+HQ 150 ppm)에 보존(保存)한 꽃은 화중증가(花重增加)가 컸고 수명(壽命)이 현저(顯著)히 길었다. 3. 절화백합(切花百合)의 ethylene 발생량(發生量)은 ethephon 처리(處理)에 의해 현저(顯著)히 증가(增加)되었으나, 이렇게 다량(多暈)의 ethylene을 발생(發生)시킨 꽃도 즉시 노화(老化)되지 않고 서서히 노화(老化)되는 양상(樣相)을 보였다. 4. 절화백합(切花百合)에 대한 보존용액(保存溶液)의 ethylene 발생억제(發生抑制) 효과(效果)는 매우 컸으나 수명연장(壽命延長) 효과(效果)는 그만큼 크지 않았다. 5. 이상(以上)의 결과(結果)로 보아 ethylene은 절화백합(切花百合)의 노화(老化)를 촉진(促進)하는 중요(重要)한 요인(要因)이기는 하지만 ethylene생성(生成) 억제(抑制)만으로는 백합(百合)의 노화(老化)를 뚜렷이 억제(抑制)하기는 어려울 것으로 판단(判斷)된다.

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