• Korean Journal of Microbiology
• /
• v.2 no.1
• /
• pp.25-27
• /
• 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.

• Journal of Korean Society of Water and Wastewater
• /
• v.13 no.3
• /
• pp.36-41
• /
• 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
• /
• s.31
• /
• pp.28-34
• /
• 2008

• Korean Journal of Applied Biomechanics
• /
• v.15 no.1
• /
• pp.45-61
• /
• 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.

• Microbiology and Biotechnology Letters
• /
• v.6 no.2
• /
• pp.51-57
• /
• 1978

The study was made of the cultural condition and physiological characteristics of the symbiotic pair of microorganisms, Cellulomonas flavigena and the second organism. It also contains the results of a taxonomical study of the second organism. The results obtained wers summarized as follows : 1) Cell yield of the mixed culture, Cellulomonas and the second organism, was higher than that of each pure culture in CM-Cellulose medium. 2) The taxonomical characteristics of the second organism revealed that it probably belonged to the genus Sporocytophaga because it had a gliding motility and microcyst. 3) Optimum pH of the mixed culture was found to be in the vicinity of 7.2, and optimum temperature of the cell growth in the mixed culture was observed to be in the vicinity of 30$^{\circ}C$. 4) It was found that the majority of the population during growth in the mixed culture consisted of Cellulomonas flavigena. 5) Cellulomonas flavigena required thiamine and biotin as growth factors but Sporocytophaga sp. had no requirement of vitamins. 6) Gulucose was not found in detectable amounts in the medium of Cellulomonas flavigena but it was traced in the mixture by thin layer chromatography. 7) Sixteen amino acids were analyzed from the cell protein of Cellulomonas flavigena by amino acid autoanalyzer. The amount of the leucine, valine and arginine was very high.

• Microbiology and Biotechnology Letters
• /
• v.6 no.4
• /
• pp.155-159
• /
• 1978

Phenol utilizing yeast No. 558 isolated from soil sewage sediment was able to use substantial amount of phenol as the sole carbon source, and the biomass productivity by this organism was very excellent. This organism could grow well in 1000 ppm of phenol concentration, the maxim-um specific growth rate obtainable at pH 5.0, 3$0^{\circ}C$ was 0.27/hr., and the biomass yield coefficient Y vs. consumed phenol was 3.2. Maximum production rate of biomass was observed at 35$^{\circ}C$, pH 3.5 to pH 4.5, and the addition of the 0.005~0. 01% yeast extract was the most effective. Addition of HgCl$_2$ and phenyl hydrazine, inhibitors of oxide-reductase, in the phenol containing cultural liquid caused this organism no-growth at the concentration of 10$^{-5}$ M, 10$^{-3}$ M respectively. This organism could utilize not only phenol but catechol, resorcinol and benzidine.

• Korean Journal of Agricultural Science
• /
• v.46 no.4
• /
• pp.705-713
• /
• 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.

• Journal of Families and Better Life
• /
• v.25 no.4
• /
• pp.43-55
• /
• 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.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2013.10a
• /
• pp.496-498
• /
• 2013

Smartphone is becoming popular from younger generation to old generation because of its convenience. Generalizing use of smartphone, it was being developed and released for education application from based on PC to smartphone. in this paper, this application was designed and developed an helpful and enjoyable application for those who very interested child education. in this paper, suggestion of the propose of education is provided on service various contetns. The children can do implement information about organism characters living in sea just selected them they want without going to sea and aquarium whenever they want. this application is implemented that children also can be relearning the organism characters by quiz that already learned them before, and developing artistic sense, creativity and imagination by coloring exercise.

• Journal of Korean Society of Disaster and Security
• /
• v.11 no.1
• /
• pp.1-5
• /
• 2018

Power plant is the important infrastructure to generate electricity. This plant in normally located next to river and seashore in order to take cooling water through intake. However, the plant is stopped when marine organism blocks the intake, and it caused damages by social and commercial. Therefore, air bubble barrier has been used to block marine organism in order to operate the plant properly. The aim of this study was to test the rates of cut off of floating substance by air bubble barrier to develop the facility for the plant. The test was conducted by current velocity, pressure of air, specific gravity of the substance and the layer of the barrier, and the result showed the blocking rates by the condition. It will be used as basic data to develop the air bubble barrier and to operate power plant properly from the marine organism.