환경이 조절되는 폐쇄형 식물생장시스템에서 플러그 셀 크기(105공, 162공, 288공)와 일장(8/16, 12/12, 16/8hr, 낮/밤) 처리를 각각 달리하여 20일간 생산된 감자 플러그 묘 '수미'와 대지'의 생육과 수량에 미치는 영향을 알아보고자 실험을 수행하였다. 정식 7주째 '수미'의 플러그 셀 크기와 일장처리는 생육과 상대생장률에 차이를 주었다. '수미'의 주당 괴경 중은 셀 크기와 일장이 증가함에 따라 증가하였다. '대지'의 괴경 중은 105공 셀 크기에서 높았으며, 일장 처리에 차이를 보였다. 90일 재배 후, '수미'의 괴경 중(258.9~471.9g/주)은 105공, 162공 처리와 16/8 hr 일장 처리에서 괴경 중이 높았다. '대지'의 괴경중 (278.2~428.0g/주)은 105공 처리에서 높았으나 일장처리 간에는 차이가 없었다. 주당 괴경 수는 '수미'가 2.9~6.9개, '대지' 2.2~3.6개로 플러그 셀 크기와 일장 처리에 따른 유의성은 없었다. 80g 이상의 괴경 크기 비율이 '수미'는 32~50.9%, '대지'는 41.0~56.7%로, 두 품종 모두 288공 셀 크기에서는 감소하였고, 일장 처리 간에는 품종에 따른 차이를 보여 '수미'는 일장이 증가함에 따라 괴경 수가 증가하는 경향을 보였으나, '대지'는 일장 처리에 따른 차이를 보이지 않았다. 이상의 결과, 초기 묘 소질이 감자 생육 및 괴경 중에 영향을 줌으로써 플러그 묘를 이용한 감자 생산에 적합한 플러그 셀 크기는 162공 이하, 12시간 이상의 일장이 필요하리라 판단되었다.

The purpose of this study was to assess the influence of two shoe size conditions on foot pressure, ground reaction force (GRF), and lower extremity muscle fatigue. Seven healthy men participated. They randomly performed walking and running in two different conditions: proper shoe size and 10 mm greater than proper shoe size. Peak foot pressure, and vertical, anterior and mediolateral force components were recorded with the Parotec system and Kisler force platform. To assess fatigue, the participants performed treadmill running for twenty-five minutes twice, each time wearing a different shoe size. Surface electromyography was used to confirm localized muscle fatigue using power spectral analysis of four muscles (tibialis anterior, gastrocnemius medialis, rectus femoris, and biceps femoris). The results were as follows: 1) In walking conditions, there was a significantly higher peak pressure in the 10 mm greater than proper shoe size insole sensor 1, 2, 14, and 18 (p<.05). 2) In running conditions, there was a significantly higher peak pressure in the 10 mm greater than proper shoe size insole sensor 5, 14, and 15 (p<.05). 3) In walking conditions, there was a significantly higher first maximal vertical GRF in the 10 mm greater than proper shoe size (p<.05). 4) In running conditions, no GRF components were significantly different between each shoe size condition (p>.05). 5) Muscle fatigue indexes of the tibialis anterior and rectus femoris were significantly increased in the 10 mm greater than proper shoe size condition. These results indicate that wearing shoes that are too large could further exacerbate the problems of increased foot pressure, vertical GRF, and muscle fatigue.

This study was performed to investigate the relationship between PSS-HSP70 gene polymorphism and artificial insemination (AI) reproductivity in the pigs. The RFLP polymorphism of PSS and the SSCP polymorphisms of HSP70 K1, K3 and K4 PCR product were detected different patterns. In the experiment for AI of fresh semen, spring and fall season showed higher litter size born of 10.89 head than 10.47 head of summer season. Landrace was showed higher litter size of 9.96 head than that of Duroc and Yorkshire (p<0.05). Stress relating PSS and HSP70 polymorphism of PSS-Normal, HSP70 K1-BB, K3-AB, K4-AA showd a highest litter size born of 10.97 head and litter size born alive of 10.69 head than that of the other polymorphisms(p<0.05). In the experiment for AI of frozen semen, effects of season and pig breeds were not showed for litter size born. The stress relating polymorphism of PSS-Carrier, HSP70 K1-BB, K3-BB, K4-AB showed highest litter size born of 11.29 head and litter size born alive of 10.82 head and PSS-Normal, HSP70 K1-BB, K3-AB, K4-AA showed the lowest litter size born of 8.48 head and litter size born alive of 7.33 head than that of the other polymorphisms(p<0.05). These results suggest that AI litter size born for the stress of forzen thawed semen may be affected by PSS and HSP70 polymorphism in pigs.

These experiments were conducted to search for the optimum composition of media material and media size for vinyl bag culture using sawdust. Considering the incubation period and the successful culturing rate, the optimum media size was length 25cm diameter 14cm (weight 2.5kg). The saturation moisture amount of Oak sawdust was 251㎖/100g. It is a half of pine sawdust 495㎖/100g. In 10 treatments of media construction including Oak sawdust 100%, the optimum material mixing rate was Oak sawdust 80%+wheat bran 20% and Oak sawdust 80%+ bran 20% considering the hypha growing speed and hypha density. The optimum moisture amount in media for growing Lentinus edodes was 55%. Injection pipe with 20 holes in media was reduced the incubation periods to 11 days when 20cm length media and 32 days when 30cm length media. The best method for browning media surface was above 10℃ of hematocryal and punching the vinyl bag. This treat could shortened the browning periods to 54 days.

The main objective of this study is to provide numerical guideline for size establishment of safety shoes about adult men(over 20 years) compared to physical standards of nation (report published in 1997). The sample for this work was chosen from data which were collected and measured by Size Korea during two years (20032004). In order to analyze and compare features of men's foot, analysis was performed about 1,685 subjects on 2 parts such as foot length and foot circumference. For the specific comparison on foot size, Mollison's comparison graph was used. The result of this study can be applied in manufacturing and design of shoes and socks. Also, it will enable us to have fruitful information on considerable items during manufacturing and design of safety shoes.

Quality characteristics of dasik were studied with varied the levels of rice grain particle size and green tea powder and compared them with commercially sold dasik. Among the samples with the same number of grinding times, the sample groups with the higher amount of green tea showed significantly the less mosture content(p<0.05). Hardness was higher in the samples containing higher amount of green tea among the ones with the same grain size (p<0.05). The M13G0.5 was evaluated to have the highest savory aroma with significance (p<0.05), and C1 to have the highest sweetness by sensory analysis. The developed dasik samples with lower rice grain particle size had significantly lower adhesiveness, chewiness, gumminess, and cohesiveness compared to those of commercial sample groups. In sensory tests, the compared groups showed significantly the higher savory aroma and flavor and very lower hardness when compared to those of commercial sample groups. With the results above, dasik with with varied the levels of rice grain particle size and green tea powder were developed with improved qualities compared to those of commercially sold dasik.

본 연구는 도축된 제주마의 난소를 이용하여 초음파 유도난포란 채취 기술을 확립하고자 난소, 난포 및 황체의 크기를 초음파상과 육안적 측정치를 비교하고자 하였다. 초음파상 측정치와 caliper를 이용한 실제 크기의 측정치 비교에서는 통계학적 차이는 보이지 않았다. 배란 직전의 난포를 조사한 결과, 초음파상에서 관찰한 것은 난소 한 개 당 평균 0.83개와 평균 크기는 2.86 m였으며, 육안으로 관찰된 것은 난소 한 개 당 평균 0.75개와 평균 크기는

본 연구는 공정육묘시 삽목용토, 셀크기 및 시비체 계가 국화묘의 생장과 정식 후 생육에 미치는 영향을 구명하고자 실시하였다. 하추국 정운을 공시하여, 상토 는 TKS1, 훈탄, 훈탄+코코피트, 산흙(관행)과 플러그 트레이 크기를 72구, 128구, 200구로 하여 유묘의 생 육을 조사하였다. 양액농도 처리는 EC 0.9, EC 1.8, EC 2.6dS·m-1, 관행(요소 0.3%)로 하여 삽목 후 10 일부터 1, 3, 5회로 엽면살포 하였다. 상토의 종류에 있어서 묘소질은 훈탄+코코피트(1:1, v/v) 상토에서 가 장 양호하게 나타났으며, 이 후의 생육에 있어서도 가 장 좋은 결과를 나타내었다. 그러나 시판용 상토인 TKS1에서는 초기 생육은 다소 도장되는 경향이었다. 어린 묘와 수확 전 식물체의 생육은 72구 플러그 트레이에서 가장 양호하였으며, 그 이하의 크기(128과 200구) 트레이에서는 초장 및 생체중이 감소하는 경향 이었으나, 정상묘의 생산에는 문제없었다. 삽목에 의한 국화 플러그묘 생산에 있어 양액농도와 처리횟수가 많 을수록 초장 등 생장이 늘어났으나, 0.9dS·m-1는 생장 이 너무 더디었고, 2.6dS·m-1는 과번무 등 농도장해를 보여, EC 1.8dS·m-1와 5회 처리가 가장 양호한 것으 로 나타났다.

  This paper is to determine the transportation size and the location of distribution centers to minimize logistics cost in a distribution system where products are transported from the distribution centers to the retailers. Logistics cost consists of the

The electromagnetic wave (EM) absorption properties of various particle size have been investigated in a sheet-type absorber using the alloy powder. With decreasing the average particle size, the complex permeability () and permittivity () increased and the matching frequency is shifted toward lower frequency. The fabricated EM wave absorbers showed permeability , permittivity for a mesh sample, and the calculated power absorption was as high as 80% in the frequency range over 2 GHz.

In general, it is fact that most educational institutions have lots of problems about shift of education facility and equipment because of insufficient budget. However, most high school girls live a lot of period in the school and most of them wear student uniform. Thus, it is necessary that educational environment has to be improved by actual body size of high school girls. The main objective of this study is to provide numerical guideline for the improvement of educational environment about high school girls (17~19 years) through comparison and analysis on physical standard of nation (report published in 1997). The sample for this work chosen from data which were collected and measured by Size Korea during two years (2003~2004). In order to analyze feature of the somatotype of high school girls, analysis was performed about 734 subjects on 25 body parts such as height (7 parts), width (4 parts), thickness (4 parts), circumference (5 parts), length (4 parts) and body weight. For the specific comparison on somatotype, Rohrer index and Mollison's comparison graph were used. The result of this study can be utilized in various fields such as design of classroom, student uniforms, facilities and equipments for education, etc.

These experiments were conducted to search for the optimum composition of media material and media size for vinyl bag culture using sawdust. Considering the incubation period and the successful culturing rate, the optimum media size was length 25cm× diameter 14cm (weight 2.5kg). The saturation moisture amount of Oak sawdust was 251㎖/100g. It is a half of pine sawdust 495㎖/100g. In 10 treatments of media construction including Oak sawdust 100%, the optimum material mixing rate was Oak sawdust 80%+wheat bran 20% and Oak sawdust 80%+ bran 20% considering the hypha growing speed and hypha density. The optimum moisture amount in media for growing Lentinus edodes was 55%. Injection pipe with 20 holes in media was reduced the incubation periods to 11 days when 20cm length media and 32 days when 30cm length media. The best method for browning media surface was above 10℃ of hematocryal and punching the vinyl bag. This treat could shortened the browning periods to 54 days.

2004년 2월부터 2005년 6월까지 제주특별자치도 애월읍 신엄리에서 흑로의 번식과정을 조사하였다. 한배 산란수는 3.24±0.75개(N=17, 범위 2~4개)였으며, 알은 새벽이나 밤에 1~3일 간격으로 산란하였다. 알(N=39)의 크기는 장경 46.73±l.91mm, 단경 34.06±0.83mm, 무게 27.67±3.12g, 두께 0.26±0.03mm였다. 흑로의 둥지 보수나 짓기는 매년 2월부터 시작해서 늦게는 4월말까지, 산란기는3월초부터 늦게는 5월 초순까지였고, 부화기는4월 초순에서 5월 중순까지, 이소기는 5월 중순부터 7월말까지였다. 보충 산란은 1차 번식과정 중 포란과 육추에 실패한 5~6월에 바로 시도하는 것으로 추정된다. 포란 기간은 28.17±4.12일(N=6)이었으며, 알은 비동시성으로 부화되었다. 육추 기간은 40.00±6.84일(N=5)이었으며, 새끼의 부리, 날개, 부척, 체중의 성장속도는 부화가 빠른 개체일수록 빠른 경향을 보였다. 우리나라에서 번식하는 백로과 조류의 산란시기를 비교해보면, 흑로는 왜가리보다는 느렸으나, 해오라기, 쇠백로, 중대백로는 보다는 빨랐다.