• 미생물학회지
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• 제2권1호
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• pp.25-27
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• 1964

Lee, Bae Ham, Rha, Min Keun and Choi, Tae joo (Dept. of Biology, Kon Kuk University). Identification of the causal organism of cereal scab in Korea. Kor. J. Microbiol. Vol. 2, No. 1, p. 25-27 (1964) Head blight or scab occurred in barley, wheat, rye and some other cereals widely in this country during the spring of 1963. The causal organisms were collected from 34local areas and isolated purely. All isolates identified as Gibberella zeae (Schw.) Petch. and Fusarium graminearum Schw. as conidial stage.

• 상하수도학회지
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• 제13권3호
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• pp.36-41
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• 1999

High quality drinking water can be produced by membrane separation process. A major problem in the current system is a membrane fouling control. In order to investigate membrane fouling due to E.coll removal, lab scale experiment using MF and UF and semi pilot plant experiment using UV radiation or not was performed. AS a result, the possibility of membrane fouling control by repressing of micro-organism on the membrane surface was clearly verified. But it was not clearly verified in this experiment the combined effect with other factors such as Turbidity, organic and inorganic matters.

• 사료
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• 통권31호
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• pp.28-34
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• 2008

• 한국운동역학회지
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• 제15권1호
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• pp.45-61
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• 2005

Stance is defined as any state in which the total mass of the body is supported by the feet. In order to maintain stance, the sum of gravito-inertial forces acting on the body must be registered by equal and opposite forces at the region of contact between the organism and the support surface. Balance is controlled by applying forces to the surface of support so as to maintain the body's center of mass vertically above the feet. for a muIti-segment organism, there can be a variety of ways in which balance can be controlled, since movements of different body segments can have similar effects on the control of balance. In general, the organism tends to have a body configuration that is aligned with gravito-inertial force when there are no external forces acting on it. If any segments of the body are not aligned with gravito-inertial force vector, a torque on that segment would tend to move the body's center of mass. The maintenance of postural stability is accomplished in humans by a complex neural control system. This requires organizing integrating and acting upon visual, vestibular, and somatosensory input, providing orientation information to the postural control system. The information necessary to control and coordinate movement is provided by the visual sense of eye position with respect to the surrounding surface layout, the vestibular sense of head orientation in the gravito-inertial space, and the somatic sense of body segment position relative to one another and to the support surface. In this study, perception and action capability was examined from various points of view. The underlying assumption of the study was that the change of postural configuration could be effected by organism, environment and task goal.

• 한국미생물·생명공학회지
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• 제6권2호
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• pp.51-57
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• 1978

섬유소 자화세균의 분리 및 이용과정에서 혼합배양하므로써 균체증식이 향상 되었는데, 이러한 혼합배양에 따른 여러 가지 영향과 보조균을 동정한 결과를 요약하면 다음과 같다. 1) Cellulomona flavigena의 단독배양에서는 O.D.가 0.26이였으나, 보조균과 혼합배양하므로써 O.D.가 0.37로 증가하였다. 2) 보조균은 gliding motility가 있었으며, microcyst가 확인되었는데 이것은 Sporocytophga 속과 일치하였다. 3) 혼합배양에서 생육최적 pH는 7.2 부근이 좋았으며, 최적온도는 3$0^{\circ}C$ 부근이었다. 4) 혼합배양에 있어서 두 균의 분포도는 10 : 1 정도로 Cellulomonas flavigena가 주로 분포되어 있었다. 5) Cellulomonas flavigena의 growth factor로서 thiamine과 biotin을 요구하였으며, Sporocytophaga sp.는 vitamin 요구성이 없었다. 6) Cellulomonas flavigena의 단독배양액에서는 추적할 만한 glucose 량이 없었으나, 혼합배양에서는 glucose가 확인되었다. 7) Cellulomonas flavigena의 균체중 필수아미노산으로 valine, leucine, arginime이 비교적 많은 편이였다

• 한국미생물·생명공학회지
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• 제6권4호
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• pp.155-159
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• 1978

분리된 효모에 의한 aromatic ring compound의 전환반응 실험에 앞서 phenol 자화능에 대한 환경 인자의 영향을 조사하기 위하여 phenol을 유일한 탄소원으로 사용하여 분리된 효모균을 30시간, 3$0^{\circ}C$에서 진탕배양하여 균체증식량을 측정하였다. 1) pH3.5~4.5 온도 35$^{\circ}C$에서 가장 자화능이 우수하였으며 phenol의 처음 농도 1000ppm 까지 는 쉽게 이용할 수 있었고 2000ppm에서는 5 일간 배양시켰을 때 비로소 균체증식이 나타났다. 2) pH 5.0, 배양온도 3$0^{\circ}C$에서 본 균의 maximum specific growth rate는 0.27hr-1 이었으며, phenol 을 1000ppm씩 단계적으로 첨가하면서 phenol 소비율에 대한 균체수율 정수 Y값을 구한 결과 Y=3.2였다. 3) Yeast extract를 필수영양원으로 첨가할 때 0.005~0.01% 농도에서 가장 효과적이었으며, 또 산화환원소 효소 조해제인 HgCl$_2$, phenylhydrazine 을 명명 $10^{-5}$M, $10^{-3}$M을 배지내에 첨가하면 분리된 효모균의 증식을 거의 볼 수 없었다. 4) Phenol의 자화에 명종 실소원의 효과를 비교 해 본 결과 urea가 가장 효과적이었고, 이 효모균은 phenol 외에 catechol, resorcinol, benzidine 을 자화할 수 있다

• 농업과학연구
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• 제46권4호
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• pp.705-713
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• 2019

This study was conducted to determine the effects of dietary non-genetically modified organism (non-GMO) wheat-based diets on the growth performance, nutrient digestibility, blood profile and meat quality of grower-finisher pigs. A total of 70 [(Landrace × Yorkshire) × Duroc] growing pigs with an initial body weight of 26.15 ± 1.57 kg were used in a 112 day trial. The dietary treatments were as follows: (I) CD, corn-based diet and (II) non-GMO WD, a non-genetically modified organism wheat-based diet. Each treatment consisted of 7 replicate pens with 5 pigs per pen. In the current study, the pigs fed the corn-based diet had a higher body weight than the pigs fed the non-GMO wheat-based diet at day 21 and day 77 (p < 0.05). There was a significant difference in the average daily gain (ADG) during the first 21 days (p < 0.05). The non-GMO wheat-based diet had no effect on nutrient digestibility. In addition, the non-GMO wheat-based diet had no effect on the blood profile except for blood urea nitrogen (BUN) at d 21. In conclusion, the non-GMO wheat-based diet only had a slight effect on the growth performance of growing pigs but had no significant impact on the nutrient digestibility, fecal score, blood profile and meat quality of the pigs during the grower-finisher period.

• 가정과삶의질연구
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• 제25권4호
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• pp.43-55
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• 2007

The Purpose of this study was to investigate the ecological variables on adolescent's sociometric popularity. Independent variables were organism(sex, age, aggression, self-esteem, impulsiveness, prosocial behavior, dominance), microsystem(parenting style, family support, friends relationship, teacher support), mesosystem(family-peer relationship, family-school relationship), and exosystem(positive community environment, social support of extended family, school's policy). The subjects were 835 - 1st and 2nd graders of two middle and two high schools in Daegu. Adolescent's sociometric popularity and ecological variables were measured with questionnaire. Adolescent's sociometric popularity was measured with sociometric popularity questionnaire. Organism variables were measured with sex, age, aggression, self-esteem, impulsiveness, prosocial behavior and dominance questionnaire. Microsystem variables were measured with parenting style, family support, friends relationship and teacher support questionnaire. Mesosystem variables were measured with family-peer relationship and family-school relationship questionnaire. Exosystem variables were measured with positive community environment, social support of extended family and school's policy questionnaire. The data analyzed by frequency, percentage, mean, cronbach's $\alpha$, and multiple regression. The major findings were as follows: First, adolescent's sociometric popularity was affected by age, overt aggression, academic self-esteem, social self-esteem, and impulsiveness of organism variables. Second, adolescent's sociometric popularity was affected by mother's affectional parenting, mother's control parenting, and attachment to friends of microsystem variables. Third, adolescent's sociometric popularity was affected by family - peer relationship and family - school relationship of mesosystem variables. Fourth, adolescent's sociometric popularity was affected by appraisal support of extended family, after-school activity, and circle activity of exosystem variables.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 추계학술대회
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• pp.496-498
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• 2013

스마트폰의 편리성으로 스마트폰은 젊은 세대에서 연령범위를 넓혀가며 대중화되어 가고 있다. 스마트폰의 사용이 일반화되면서 PC기반의 교육용 애플리케이션을 스마트폰 기반으로 한 애플리케이션들이 개발, 발표되기 시작하였다. 본 논문에서는 유아가 놀이와 동시에 학습을 즐겁게 할 수 있는 유아용 교육 애플리케이션을 설계하고 개발하였다. 본 논문에서 제시하는 애플리케이션은 교육의 목적으로 바다 생물에 관한 다양한 컨텐츠를 제공한다. 원하는 바다 생물의 캐릭터를 선택하여 유아들이 바다나 수족관에 가지 않아도 언제든지 바다 생물에 대한 정보를 제공하여 눈높이에 맞게 보고 배울 수 있도록 구현하였다. 그리고 이전에 학습했던 바다 생물에 관한 퀴즈로 재학습하게 하며, 색칠공부에서는 바다 생물을 그리면서 예술적인 감각과 창의력, 상상력을 키울 수 있도록 구현하였다.

• 한국방재안전학회논문집
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• 제11권1호
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• pp.1-5
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• 2018

발전소는 선진 산업사회에서의 중요한 사회기반시설이다. 이러한 발전소가 해초, 물고기, 해파리, 새우 등과 같은 해양생물의 유입으로 정지 될 경우, 사회-경제적으로 심각한 문제가 발생하기도 한다. 따라서, 발전소 취수구 유입구 부분의 해양생물 침투로 인한 발전소 가동이 정지되는 것을 방지하기 위하여, 에어버블 차단막 기술이 활용되고 있다. 본 연구에서는 에어버블 차단막 기술의 기초연구인 에어버블의 거동을 분석하기 위하여 수직형 에어버블 실험장치를 개발 및 에어버블수직 거동 특성을 분석하였다. 에어버블 수직 거동 특성을 분석하기 위하여 수직형 에어버블 실험 장치를 이용하여 에어 분사량에 따른 수심별 에어버블의 상승 속도를 측정하였으며, 실험결과를 바탕으로 수심구간별 에어버블 상승속도 경험식을을 제시하였다. 제시된 경험식은 향후 에어버블 차단막 설계의 기초자료로 활용될 것이며, 발전시설 운영 부분에서의 안정성을 확보하는 데 크게 기여할 것으로 기대된다.