• 한국식품과학회지
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• 제28권1호
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• pp.122-126
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• 1996

Saccharomyces cerevisiae NS 2031의 유가식 배양에서 기질공급방법에 따라 효모 생육과 RNA 축적을 관찰하였다. Exponential feeding 형태에서 기질공급속도가 빠를 때 최종 배양 시간에서 균체량과 새포내 RNA 함량은 감소하는 경향을 나타내었으며, 배양시간이 경과함에 따라 균체내 RNA 함량은 전반적으로 감소하는 경향을 나타내었다. Exponential feeding 형태의 동일한 기질공급속도에서, 기질공급농도가 높을수록 최종 균체량은 감소하였으며, 균체수율(Yx/s)은 10%의 기질공급농도에서 0.47로 가장 높았다. 균체내 RNA 함량은 기질공급농도가 높을수록 증가하는 경향을 보였다. Parabolic feeding 형태에서는 기질공급속도가 빠를수록 균체량은 감소하였으나, 균체내 RNA 함량은 증가하여 exponential feeding 형태에서와 다른 경향을 나타내었다. 두가지 기질공급형태에서 균체생육에 가장 좋은 기질공급 program의 결과를 비교해 보면, 균체량, 균체수율, 세포내 RNA 함량을 높이려면 exponential feeding 형태가 parabolic feeding 형태보다 유리하였다. 또한, 유가식 배양에서 같은 instantaneous growth rate $({\mu}_{inst})$에서 균체내 RNA 함량을 비교하면, exponential feeding이 parabolic feeding보다 2%가량 높게 유지되어, 기질공급형태가 균체내 RNA 축적 생리에 큰 영향을 주고 있음을 알았다.

• Fisheries and Aquatic Sciences
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• 제4권3호
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• pp.138-143
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• 2001

Red sea bream, Pagrus major a fish species characterized by its dualistic feeding pattern, was investigated to study the synchronizing effect of light and food on the demand-feeding rhythm. Nocturnal and diurnal red sea bream, both in groups and individually, were exposed to restricted-feeding and Light-Dark cycles of different periods. The phase relationship between both zeitgebers was also studied. In some cases, food availability restricted to the light or dark phase contrary to that of the previous feeding phase changed a diurnal feeding pattern into nocturnal and vice versa, suggesting that food can be one of the switching factors that decides whether the circadian system of red sea bream is diurnal or nocturnal. However, the fact that the feeding pattern of some fish was unrelated with the phase in which food was available suggests that other internal and/or external-factors could be involved in the temporal flexibility of red sea bream.

• Journal of Nutrition and Health
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• 제26권4호
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• pp.423-432
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• 1993

Feeding mode and evacuation pattern of 9 breast-fed(BF) infants and 22 formula-fed(FF) infants were monitored at 1, 2 and 3 months postpartum in Korea. The daily feeding volume to the BF infants was significantly less than that to the FF infants at 2 and 3 months postpartum. And the daily feeding voloume to the BF infants decreased significantly with age, whereas that to the FF infants increased significantly. These data indicated that the frequency of daily feeding decreased with age in bofy infants' intake per feeding increased whereas the BF infants' did not. As a result, the BF infants could not adjust their intakes. The frequency of daily evactation of the BF infants was higher than that of the FF infants, but the amount of daily evacuation of the BF infants was less than that of the FF infants.

• 한국응용곤충학회지
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• 제32권2호
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• pp.208-217
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• 1993

벼멸구의 식이행동을 전기적인 측정 방법을 통하여 관찰하였으며 이들을 각각의 특성에 따라 분류하였고, 그결과 type P, S, SB, O, X, Ph 등 6가지로 나누어 볼 수 있었다. Type P는 벼멸구가 식물에체 처음 접근하여 기주를 탐색할 때 볼 수 있었으며, 구침을 조직내에 찔어 넣거나조직내에서 이동할 때에는 type S를 관찰 할 수 있었다. 또한 매우 규칙적인 S패턴은 체관부에 구침을 찔어 넣을때만 볼 수 있어 type SB로 따로이 분류하였다. X와 Ph패턴은 각각 물관부와 채관부에서 흡즙할 때 나타나는 것을 확인하였으며, type O는 기타 다른 조직내에 구침이 있을 때 이러한 전기적 패턴을 보여 주었다. 이러한 각각의 전기적 패턴을 확인하기 위하여 원하는 패턴이 나타날 때에 식흔이 있는 벼의 조직을 잘라서 현미경으로 관찰하였으며, 각각의 타입별로 벼멸구 배설물을 측정하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제4권1호
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• pp.79-83
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• 1991

Diurnal variation in faecal chromic oxide levels was estimated from 4 hourly faecal sampling of 56 wethers allotted to one of six different feeding patterns. Sampling occurred on days 6 and 7 (Period 1) after a controlled release device was administered, and was repeated on days 14 and 15 (Period 2) following re-randomisation of the wethers to the feeding patterns. Increasing the frequency of feeding tended to be associated with higher faecal chromic oxide levels (p < 0.05), particularly in wethers fed thrice daily at 8 hour intervals. There was no interaction between feeding pattern and period, sampling day or time within-day. There were significant period x time within-day (p < 0.05) and day x time within-day (p < 0.001) interactions, indicating that variation in faecal chromic oxide between sample times was not consistent. This implies that sampling at any time of day is unlikely to result in a biased estimate of pasture intake, providing sufficient samples are collected. Significant period (p < 0.001) and period x day (p < 0.01) effects were associated with slow faecal chromic oxide equilibration in period 1. Equilibration did not occur until after day 7, indicating a need for caution when commencing sampling.

• 한국응용곤충학회지
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• 제44권3호
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• pp.177-187
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• 2005

충남지방에서 많이 재배되고 10개의 벼 품종을 대상으로 벼멸구(Nilaparvata lugens)의 섭식행동을 EPG 패턴으로 분석하였다. 또한 벼의 섭식시간과 감로분비량의 관계를 알아보고 측정한 EPG 패턴을 비교분석하였다. 벼멸구의 각 EPG type을 전기적인 특성에 따라 1-6까지의 6가지로 분류하였다. 이중 Type 1은 구침을 꽂지 않고 쉬거나 돌아다닐 때 나타나는 패턴이고 Type 2는 체관을 흡즙할 때 나타나는 패턴이고 Type 3은 처음으로 구침을 꽂을 때, Type 4는 타액 분비시, Type 5는 물관의 흡즙시, Type 6은 구침의 세포내 이동시 나타난다. 벼멸구의 각 품종에 대한 섭식시간은 금남벼에서는 짧은 시간동안 이루어졌고 동전벼, 대안벼, 동안벼, 대산벼에서는 오랜 시간 흡즙을 하였다. 또한 금남벼에서는 장시간 구침을 삽입하지 않는 시간이 길었다. 감로의 분비량은 동진벼에서 가장 많았고 금남벼에서 가장 적은 감로를 분비했다. 이 감로의 분비량은 체관의 흡즙시간과 비례하여 나타났다. EPG type과 감로의 분비량을 분석한 결과 벼멸구가 선호하는 품종은 동진벼, 동안벼, 대산벼, 대안벼 등이었고 그렇지 않은 품종은 금남벼, 다산벼, 남천벼 등이었다.

• 한국IT서비스학회지
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• 제17권1호
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• pp.135-153
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• 2018

E-Card Service for Child Nutrition Program is one of the main public policy services nowadays. In case of inconvenience during the use of the e-cards, it is recommended to cooperate with related organizations in order to promptly handle and provide guidance, and thoroughly manage child feeding service such as hygiene, nutrition and kindness etc. To do so, it is very important to provide food service that meets local actual conditions and children's needs in a cost effective manner for the underage who are worried about the poorly-fed by understanding the pattern of child feeding e-card service. Hence. this paper aims to investigate how child feeding e-card service efficiently provides meals according to the local situation and children's needs through big data analysis and to propose a method of identifying welfare conditions according to the purpose of service with actual application examples. The results suggest that, first of all, this study is able to judge appropriateness of public institution's policy in a timely and repetitive manner through non-standard data analysis such as Naver News and transaction data. Secondly, this paper proposes a multi-layered analysis framework, which performs online open data analysis to detect policy issues, visualizes retrieval and preprocessing of real data, and performs abnormal pattern recognition. These will be worthy of reference to other similar projects.

• 부모자녀건강학회지
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• 제3권2호
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• pp.18-24
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• 2000

The purpose of this research is to investigate Sleep/Activity pattern of normal neonate in Kangwon area. The subjects of this research were 23 normal neonate who visited pediatric clinic of kangneung general hospital from Jun 15, 1999 to August 10, 2000. The instrument of this research was the NCASA. The results of this research were as follows: 1. The mean time of daytime sleep was 8.21 hours. The mean time of nighttime sleep was 5.70 hours. The mean time of total daily sleep was 13.92 hours. The mean time of longest sleep period was 5.02 hours. The mean time of regularity of sleep were daytime 46.59%, nighttime 74.43%, total daily sleep 55.88%. The mean frequency of nighttime wakening was 2.03 times. 2. The each mean time of activity were daytime 7.72 hours, nighttime 2.28 hours, daily total activity 9.99 hours. The mean time of the longest activity period was 6.16 hours. The mean times of feeding frequency were daytime feeding 4.53, nighttime feeding 1.92, total daily feeding 6.45. The mean of regularity of feeding frequency was 65.71%.

• 여성건강간호학회지
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• 제8권1호
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• pp.116-123
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• 2002

The purpose of this study was to investigate the relationship between knowledge of breast feeding and practice of feeding pattern. A sample of 117 mothers who have the babies between age from 1 month to 12 months were selected from one university hospital and one public heath care center in J city. The data were collected with the questionnaire during the period from the January. 5, 2002 through January. 30, 2002. Analysis was done by using frequency, percentage, t-test, analysis of variance, and scheffe test. The results of this study can be summarized as follows. Comparision of the method of feeding by general characters. Income state, rearing (p=.019), rearing supporters(p=.026), infant age(p=.03) have shown significant difference as the variables affecting Breast practice rate. Breastfeeding rate were 24.8%, mixedfeeding type, 14.5%, milkfeeding type, 60.7%. The mean of knowledge on breastfeeding by feeding patterns were the highest in the group of breastfeeding. There was statistical significance between the group of breast feeding and milkfeeding(p=.000). In the conclusion, this study revealed that knowledge of breastfeeding promoted practice of breastfeeding. Therefore, to promote practice of breastfeeding, it is necessary that nurses provide adequate information about knowledge of breastfeeding.

• 환경위생공학
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• 제13권2호
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• pp.66-75
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• 1998

The computer simulation model was used to forecast the concentrations of COD$_{cr}$, NH$_{4}$$^{+}$-N and NO$_{3}$$^{-}$-N in each reactors. In the biological wastewater treatment system, the computer simulation model was used to observe the behavior of pollutants especially. In this research, effect of SRT, feeding pattern and recirculation rate on UCT(University of Cape Town) process was evaluated by computer simulation model. T-N removal was affected to the SRT. SRT for effective T-N removal was 15 days or longer. Feeding pattern in UCT process was affected to the T-N removal. Feeding pattern which 100% loading to the first reactor was most effective for T-N removal. The effect of recirculation rate was clear for T-N removal. The recirculation from anoxic reactor to anaerobic reactor was not need but the recirculation from oxic reactor to anoxic reactor was need. In aspect of nitrogen removal efficiency, A/O process was higher than UCT process.