• KSBB Journal
• /
• 제30권1호
• /
• pp.27-32
• /
• 2015

The current investigation was carried out to explore the possibility of submerged fermentation of Saccharina japonica as sole substrate using Aspergillus oryzae. In this study we used 2% S. japonica powder as fermentation media for A. oryzae. Fermentation period was optimized by monitoring the fermented sample at regular intervals for a period of 7 days. Results found that a fermentation period of 5 days was effective with maximum desirable characteristics such as total sugar, total phenolic and flavonoid contents. Under optimum fermentation period, fermented extracts showed enhanced antioxidant activity as determined by different assays such DPPH radical scavenging, ABTS scavenging and phosphomolydenum assay. This study provides the information for the enhancement of bioactive molecules in an eco-friendly manner and also paves way towards the development of wide range of seaweed-based functional foods.

• 천문학회지
• /
• 제29권spc1호
• /
• pp.219-221
• /
• 1996

The x-ray pulsar GX 1+4 was observed by us in four balloon- borne experiments carried out from Hyderabad, India during 1991-1995 period with a hard x-ray telescope. The x-ray telescope consists of two collimated large area xenon-filled proportional counters with an effective area of $2400 cm^2$, a field of view of $5^{\circ}{\times}5^{\circ}$ and sensitive in the energy band of 20 - 100 keV. The pulsar was detected in bright state in two of the four experiments and x-ray pulsations with 120 second period were detected clearly. Pulsation period, rate of change of period with time, pulse fraction, pulse profile and energy spectra of the source were determined from these studies. During March 1995 observation, the x-ray pulse of GX 1+4 was found to be double-peaked compared to a single-peak pulse profile detected in December 1993. Details of these results are presented and their interpretation discussed in terms of the current accretion models of x-ray binaries.

• KDI Journal of Economic Policy
• /
• 제12권1호
• /
• pp.3-29
• /
• 1990

60년대 전반 이후의 수출주도형(輸出主導型) 공업화(工業化)을 통한 고도성장(高度成長)은 국내산업(國內産業) 또는 업종간(業種間) 성장율(成長率)의 차이로 인해서 상당한 산업구조변화(産業構造變化)를 수반했다. 따라서 본 논문에서는 산업연관표체계(産業聯關表體系)를 사용하여 우리나라의 장기적(長期的)인 산업성장(産業成長) 및 구조변화(構造變化)의 요인(要因)을 분석해 보고자 한다. 즉 과거(過去)의 장기적(長期的)인 성장과정(成長過程)에서 국내수요(國內需要), 수출(輸出), 수입대체(輸入代替)와 기술변화(技術變化)는 산업별 생산성장(生産成長)에 각각 얼마만큼 기여(寄與)했나 하는 것을 측정해 보고자 한다. 이러한 측정은 총량적(總量的) 경제수준(經濟水準)뿐만 아니라 세부산업별(細部産業別)로도 이루어질 수 있기 때문에 한국경제(韓國經濟) 전반(全般) 및 공업부문(工業部門)의 세부적(細部的) 변화과정(變化過程)에 관한 풍부한 분석자료(分析資料)를 제공할 것으로 기대한다.

• 한국지진공학회:학술대회논문집
• /
• 한국지진공학회 2000년도 춘계 학술발표회 논문집 Proceedings of EESK Conference-Spring
• /
• pp.383-390
• /
• 2000

The purpose of this paper is to investigate dynamic characteristics of an isolated bridge with a different location of seismic isolation at piers and to determine the best location of seismic isolation. The substructure of the bridge is two column framed type reinforced concrete and has relatively high piers so it has long natural period, To decide the best location of seismic isolations displacement shear force bending moment acceleration and absorbed energy are compared using fast nonlinear analysis. To isolate overall structures is effective to bending moments and shear forces for long period bridges.

• 한국융합학회논문지
• /
• 제6권4호
• /
• pp.127-132
• /
• 2015

본 연구는 한국 주식시장에서 가치투자 전략과 연계해 모멘텀 투자전략의 유효성을 분석하였다. 본 연구는 2001년~2014년 동안 한국 주식시장의 상장기업의 주가 및 재무자료를 실증 분석해, 과거 승자 주를 매수하고 패자 주를 매도하는 모멘텀 투자전략과 장부가/시가 비율이 높은 가치주를 매수하고 장부가/시가 비율이 낮은 글래머주를 매도하는 가치 투자전략의 유효성이 기간별로 서로 다르며, 전체 분석기간에 걸쳐 역(-)의 상관관계가 있음을 관찰하였다. 또한 Fama and French[1]가 개발한 3 요인 회귀분석 모형을 추정해, 모형의 절편이 유의적인 양(+)의 값으로 추정됨을 관찰함으로써, 역(-)의 상관관계로 인해 상호 대체관계에 있는 모멘텀 투자전략과 가치 투자전략을 하나의 시스템으로 분석할 때, 모멘텀 투자전략이 세계 주요 증권시장에서와 마찬가지로 한국 증권시장에서도 유효함을 분석하였다.

• Archives of Plastic Surgery
• /
• 제36권2호
• /
• pp.229-232
• /
• 2009

Purpose: Kimura's disease is a relatively rare head and neck tumor that frequently occurs in young orientals accompanied with eosinophila. We shared our experience of two cases of Kimura's disease, treated by radical resection and post operative steroid therapy, so we report the correlation of eosinophil counts and disease progression. Methods: A 25 years old male came to the clinic with a mass localized to the right cheek inferior to the right auricle. We could not resect the mass totally. During the follow up period, we checked the eosinophil counts, and steroid therapy was started 7 months after the surgery. A 34 year old female came to the clinic with a mass localized inferior to the left auricle reaching from the posterior portion of the auricle to the left temporal portion. We tried to remove as much tumor as possible, save the temporal region, in regard to the impairment of blood supply to the auricle. After operation, steroid therapy was started. Results: In the first case, the tumor was easily approachable, and radical resection of the tumor with post operative steroid therapy was an effective treatment. In tumors located at difficult regions to remove, as in the second case, optimal debulking and post operative steroid therapy was also effective in treating Kimura's. There were no recurrences in both cases. Eosinophil counts were always reduced after surgery and steroid therapy, and during the period with low eosinophil counts, there was no recurrence of Kimura's disease. Conclusion: Surgery and post operative steroid therapy were effective in treatment of Kimura's disease, and we could assume eosinophil counts as a good indicator for evaluation of the prognosis of Kimura's disease during the follow up period.

• 대한한방부인과학회지
• /
• 제21권1호
• /
• pp.267-275
• /
• 2008

Purpose: The purpose of this study is to report the effect of oriental treatments for parkinsonism after puerperal period. Methods: We treated one 29-years-old female who had parkinsonism (dysarthria, gait disturbance, dizziness, tremor, rigidity, blurring of vision) after puerperal period with herb medication ( Chengsimondamtang -淸心溫膽湯, etc). Results: After oriental medical treatment, the clinical symptom of parkinsonism after puerperal period was improved. Conclusion: This case study shows that the oriental medical therapy is effective in treating parkinsonism after puerperal period. So that, it is helpful in decreasing the symptoms of patients and in improving quality of life.

• 천문학회보
• /
• 제35권1호
• /
• pp.52.1-52.1
• /
• 2010

The relationship between orbital periods of cataclysmic variables (CV) and mass-loss rates of their donor stars is an important subject of theoretical researches. The observed donor's radii are oversized in comparison with those of isolated unperturbed stars of the same mass, which is thought to be a consequence of the mass-loss. Using the empirical mass-radius relation of CVs and the Hayashi theory for changes in effective temperature, orbital period, and luminosity of the donor with the stellar radius, we find the mass-loss rate of CVs as a function of the orbital period P. The derived mass-loss rate is more or less constant at 10-9.6-10-10M$\odot$ yr-1 with P above 90 minutes and declines very rapidly with P below 90 minutes, reaching 10-10.3-10-11.7M$\odot$ yr-1 when P is close to the minimum period. The turnaround behavior of the mass-loss rate shape with P near the minimal period is much less pronounced than suggested by earlier numerical models, making observational detection of the turnaround highly unlikely. When applied to our new results, SDSS 1035, 1507, 1501 and 1433 systems, previously known as post-bounce CVs, are more likely to be systems that have yet to reach the minimal period.

• Fisheries and Aquatic Sciences
• /
• 제16권2호
• /
• pp.101-108
• /
• 2013

An active stimulating device (ASD) consisting of a net panel or ropes fluttering in the turbulence inside the cod end was effective in driving fish near the cod end to reduce juvenile by-catch. The fluttering characteristics of the rope and net panel were examined by video observations and analyzed for fluttering amplitude and period in a water channel and in field experiments with a bottom trawl. The amplitude ratio of the fluttering ropes or nets in the tank test increased with the fluttering index as the diameter of the twine, mesh size, flexibility, and flow velocity changed, whereas the period decreased with the above factors. In bottom trawl experiments, the range of mean depth difference in the fluttering net panel was 12-17% of the length of the fluttering net, and the period of depth difference or three-dimensional (3D) tilt was revealed, with shorter ones ranging from 2 to 6 s. The amplitude as depth difference and period from field measurements were similar to those of nets in tank experiments and also to the period of 3D flow velocity inside the cod end. These results could be used to design an ASD that could be used for to the cod end of actual towed fishing gear to reduce juvenile by-catch.

• Child Health Nursing Research
• /
• 제22권3호
• /
• pp.172-181
• /
• 2016

Purpose: This study was conducted to examine the effect of education on infection control for multidrug resistant organism (MDRO). Methods: One group pre-post time series design was used. Infection control education for MDRO infection was provided to nurses working in the Neonatal Intensive Care Unit (NICU). Knowledge and recognition were evaluated before and after education. Hand hygiene compliance, MDRO isolation rate and central line-associated bloodstream infection (CLABSI) rate were used as outcome variables. Data from 45 nurses was used for analysis. Results: General knowledge about MDRO increased (p=.011). Responses to questions about image of MDRO and MDRO management tended to change in a positive direction (p=.046). Hand hygiene compliance was 100% at pre-test, 79.5% during education period and 98.4% at post-education period. MDRO isolation rate was 6.83 per 1,000 patient days at pre-test, 10.24 during education period and 6.68 at post-education period. CLABSI rate was 3.76 per 1,000 central line days at pre-test, 6.84 during education period and 4.71 at post-education period. Conclusion: Findings indicate that the education program is effective in improving knowledge about MDRO in NICU nurses. However, more reliable indicators should be used to determine long-term effects.