• Food Science of Animal Resources
• /
• v.20 no.2
• /
• pp.107-113
• /
• 2000

This study was carried out to investigate the effects of temperature activation and agitation on lipolysis of goat milk. When goat milk was temperature activated twice at intervals of 12hours, free fatty acids were significantly increased after the first activation, but increased slightly during the re-cooling period and after the second activation. Lipolysis of the goat milk warmed at $30^{\circ}C$ was significantly facilitated during the re-cooling period. Lipolysis of the goat milk warmed at $30^{\circ}C$ was much higher than those warmed at $10^{\circ}C$ and $40^{\circ}C$ respectively. The highest lipolysis was occurred when the goat milk was warmed at $30^{\circ}C$ for 5 minutes after pre-cooling for 24 hours at $40^{\circ}C$. However, any significant difference was not found in the milk warmed at $40^{\circ}C$, regardless of the pre-cooling period. Lipolysis of the goat milk warmed and agitated at $30^{\circ}C$ was significantly facilitated during the re-cooling period. The lipolysis of that at $30^{\circ}C$ was significantly facilitated during the re-cooling period. The lipolysis of that at $30^{\circ}C$ was much enhanced with agitation. The lipolysis was much higher when agitated at $30^{\circ}C$ than when agitated at $10^{\circ}C$. The length of agitation time at $30^{\circ}C$ didn't give any effect on lipolysis.

• Journal of Korean Academy of Nursing
• /
• v.30 no.4
• /
• pp.825-835
• /
• 2000

The agitation of dementia patient is a factor which aggravates the care-givers' burdon, and it is needed to develop intervention methods. Hall and Buckwalter hypothesized that an increase in agitation behavior occur when persons experience high levels of stress. This study was conducted to explore the efficacy of hand massage in producing relaxation and decreasing agitation behaviors in persons with dementia. Hand massage was administered once a day in afternoon for 8days to 24 patients and 4days to 23 patients. There was no difference in result between the two groups. Significant differences were found in systolic blood pressure, pulse rate, emotional state from pre to post -intervention with the use of hand massage. The change of systolic blood pressure was 26% explained by ADL, MMSE-K and institutionalized period. The most significant variable was institutionalized period. The change of diastolic blood pressure was 11% explained by ADL, and it was significant. But no decrease in agitation behavior was observed and no increase in functional capacity.

• KSBB Journal
• /
• v.15 no.3
• /
• pp.280-284
• /
• 2000

The simple imcroprocessor device was provided for the control of dissolved oxygen(DO) level. The DO analog signal output from fementer was used as a measurement variable and the agitation speed of fermenter was used as a manipulatio variable. Agitation speed was manipulated to maintain DO level above 10% of saturation condition during cell growth period with microprocessor. Since the experimental resultsshowed that the DO level was maintained above 10% and agitation speed was inverse proportional to DO level ithis simple control device can be used for the DO control of fermenter.

• Biotechnology and Bioprocess Engineering:BBE
• /
• v.10 no.6
• /
• pp.571-575
• /
• 2005

A simple, but effective on-line method for estimating the mycelial cell mass concentration from agitation speed data, a most readily-available process variable, has been developed for DO-stat cultures of Agaricus blazei. The dynamic change of dissolved oxygen concentration (DOC) in the initial transient period and the change in yield were considered in the development of the estimation algorithm or estimator. Parameters in the estimation algorithm were calculated from the agitation speed data at 20% of DOC. The proposed estimator could accurately predict the cell mass concentration regardless of DOC levels in the tested range of $10{\sim}40%$, showing a good extrapolation capability.

• Resources Recycling
• /
• v.8 no.4
• /
• pp.39-44
• /
• 1999

Nightsoil and brewery sludges usually contain a high concentration of organic matters. A composting study using reactors was carried out for the recycle of brewery wastewater sludge and nightsoil treatment sludge, which have been landfilled. A good composting process was obtained with a sludge mixing ratio of 1:1 and injual pH had no effect on temperature increase related to microbial activity. The injtial C/N ratio at approximarely 15 decreased to 13 without the increase in pH.. It was found that agitation of one time a week provided the most effective composting process.

• Journal of The Korean Society of Clinical Toxicology
• /
• v.7 no.2
• /
• pp.176-179
• /
• 2009

A 38-year-old woman was admitted to our hospital due to agitation, nausea, chest discomfort, tachycardia and hypertension 6h after ingesting approximately 60 capsules of sibutramine. The woman developed the clinical features of acute psychosis, including auditory hallucination, agitation and paranoid ideation, on day 2. No relevant changes were detected on the laboratory examinations or on the electrocardiogram throughout the period of hospitalization. She was treated with risperidone and benzodiazepine. The symptoms subsequently resolved completely with cessation of the provoking agent. The patient was discharged on day 7 and the follow-up revealed no sequelae for 5 months.

• Journal of Korean Academy of Nursing
• /
• v.30 no.1
• /
• pp.98-109
• /
• 2000

The purpose of this study was to identify the effect on improvement of the Activity of Daily Living (ADL) and decrease the cognitive function and agitation behaviors by reminiscence with audio-visual stimulation for senile dementia. The quasi-experimental design was used in this study. Subjects were 26 with mild senile dementia who were cared for at a Day Care Center for Dementia in Seoul. The data were collected from March to July, 1999. Subjects were divided into three groups : Control Igroup with 10 subjects, reminiscence group(Control II group with 8 subjects), and reminiscence with audio-visual stimulation group(experimental group with 8 subjects). The Control I group got routine care as usual. Control II group participated in reminiscence sessions for one hour a day, five times a week , for a period of 4 weeks. The experimental group participated in reminiscence with audio-visual stimulation sessions for one hour a day, five times a week, for a period of 4 weeks. Instruments of this study were color photography with sound that was developed through an open questionnaire about events, objects, humans in action and animals that 100 Korean elderly over 60 would like to memorize. This was referred from the Sensory Stimuli Package by Namazi and Haynes(1994). The effects of treatment was evaluated through MMSE-K by Kwon & Park(1989). Also the Brief Cognitive Rating Scale(BCRS) by Reisberg et al(1983) for the cognitive function, through Agitation Inventory by Cohen- Mansfield and Colleague(1989) for behavioral response and through the Rapid Disability Rating Scale-2(RDRS-2) by Linn & Linn(1982) for the activity of daily living respectively. Data analysis was done using SPSS for $\chi$2- test, ANOVA, repeated measures ANOVA. The results were as follows : 1. Reminiscence with audio-visual stimulation did not improve cognitive function for senile dementia, but significantly improved verbal expression, the subscale of cognitive function. 2. Reminiscence with audio-visual stimulation reduced agitation behavior of experimental group significantly, but there was no significant difference between groups. 3. Reminiscence with audio-visual stimulation did not significantly effect the activity of daily living after treatment. In conclusion, it was shown that the reminiscence with audio-visual stimulation was an effective therapy to improve verbal expression and to reduce agitation behaviors of senile dementia. Further research with more indepth approach is needed, considering characteristic and level individualized for each senile dementia.

• Journal of Microbiology and Biotechnology
• /
• v.16 no.11
• /
• pp.1690-1698
• /
• 2006

In order to investigate the effect of dissolved oxygen (DO) level on AVM $B_{1a}$ production by a high yielding mutant of Streptomyces avermitilis, five sets of bioreactor cultures were performed under variously controlled DO levels. Using an online computer control system, the agitation speed and aeration rate were automatically controlled in an adaptive manner, responding timely to the oxygen requirement of the producer microorganism. In the two cultures of DO limitation, the onset of AVM $B_{1a}$ biosynthesis was observed to casually coincide with the fermentation time when oxygen-limited conditions were overcome by the producing microorganism. In contrast, this phenomenon did not occur in the parallel fermentations with DO levels controlled at around 30% and 40% throughout the entire fermentation period, showing an almost growth-associated mode of AVM $B_{1a}$ production: AVM $B_{1a}$ biosynthesis under the environments of high DO levels started much earlier than the corresponding oxygen-limited cultures, leading to a significant enhancement of AVM $B_{1a}$ production during the exponential stage. Consequently, approximately 6-fold and 9-fold increases in the final AVM $B_{1a}$ production were obtained in 30% and 40% DO-controlled fermentations, respectively, especially when compared with the culture of severe DO limitation (the culture with 0% DO level during the exponential phase). The production yield ($Y_{p/x}$), volumetric production rate (Qp), and specific production rate (${\bar{q}}_p$) of the 40% DO-controlled culture were observed to be 14%, 15%, and 15% higher, respectively, than those of the parallel cultures that were performed under an excessive agitation speed (350 rpm) and aeration rate (1 vvm) to maintain sufficiently high DO levels throughout the entire fermentation period. These results suggest that high shear damage of the high-yielding strain due to an excessive agitation speed is the primary reason for the reduction of the AVM $B_{1a}$ biosynthetic capability of the producer. As for the cell growth, exponential growth patterns during the initial 3 days were observed in the fermentations of sufficient DO levels, whereas almost linear patterns of cell growth were observed in the other two cultures of DO limitation during the identical period, resulting in apparently lower amounts of DCW. These results led us to conclude that maintenance of optimum DO levels, but not too high to cause potential shear damage on the producer, was crucial not only for the cell growth, but also for the enhanced production of AVM $B_{1a}$ by the filamentous mycelial cells of Streptomyces avermitilis.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.15 no.4
• /
• pp.753-758
• /
• 2020

In this paper, we intend to develop a control system that can apply the developed vertical stirring heater to the facility house and control the other facilities (circulating fan, ventilation fan, window using a switching motor, ceiling, and dehumidification). Through this, it is intended to increase the cultivation efficiency of crops and improve storage environment of crops held by non-heated storage or storage warehouses to increase the storage period and freshness. In addition, ICT monitoring technology is added to enable users to easily solve problems when there is a problem due to changes in the cultivation and storage environment with Real Time Control (RTC).

• Journal of the Architectural Institute of Korea Planning & Design
• /
• v.34 no.5
• /
• pp.119-127
• /
• 2018

This study examined the construction method shown in literatures and materials discovered in rampart, barbican and guard platform for Cheongdo-Eupseong castle which was constructed immediately before Japanese Invasions of Korea (1592-98). According to the result of the examination, the construction method used in the coastal areas and inland areas of Gyeongsang province in the early Joseon period was applied to the rampart, barbican and guard platform in the east and north castle walls, which was constructed earlier than other parts of Cheongdo-Eupseong castle. However, from the western end of the northern castle wall, which was later constructed, to the western castle wall was rebuilt using a construction method different from the method applied to the parts that were constructed earlier after Japanese Invasions of Korea. Cheongdo-Eupseong castle was constructed on a flatland on a large scale and at a low height under unreasonable pressures to construct the castle in a short period of time for military defense as well as civil agitation in the imminent situation just before the outbreak of Japanese Invasions of Korea. In addition, various methods of constructing Eupseong castle utilized at that time were used together, and barbican and guard platform were built generally focusing on rapid completion and convenience, using other methods than the one mainly used at that time. This is the reason why there was a difference in the characteristics of the method and period of castle construction between Cheongdo-Eupseong castle and other Eupseong castles in the coastal areas and inland areas of Gyeongsang province.