• 대한한의학회지
• /
• 제30권2호
• /
• pp.152-165
• /
• 2009

Objectives: We intended to identify differences of general symptoms related to existence & nonexistence of uterine myoma. Methods: We surveyed 948 women from 35 to 45 years old who had received Korean oriental medical questionnaires about general symptom patterns and abdominal & pelvic ultrasonography at Kyung-Hee University medical center from May 2007 to October 2008. After we divided the women into two (uterine myoma or normal) groups by ultrasonography result, we compared general symptom patterns of the uterine myoma group with those of the normal group. Results: In relation to digestion pattern, appetite showed statistically significant difference between the normal and uterine myoma groups. In relation to evacuation pattern, stool frequency showed statistically significant difference between the normal and uterine myoma groups. In relation to psychologic pattern, difference in oppression in the chest & palpitation showed statistical significance between the groups. In relation to the other patterns, differences in throat discomfort & hypertonicity of nape neck showed statistical significance between the normal and uterine myoma groups (p<0.05). Conclusions: The result showed that prevalence of uterine myoma should be considered in respect to digestion pattern, evacuation pattern, and psychologic pattern. We need further study after increasing the size of the uterine myoma group and improvement of general symptom questionnaires.

• 한국디지털건축인테리어학회논문집
• /
• 제1권1호
• /
• pp.59-66
• /
• 2001

The purpose of this study is to improve productivity of architectural space planning(A.S.P,) by computer system and to optimize ASP. A searching algorithm is the best way to slave optimized A.S.P. Because architectural design is too many various site situations and client's demands to specify the general solving methods. This method seek the best design case in all possibility and to be modeled as this; Seongbukgu's case that is city structure former times negative by in facilities utilization of the near street limit. But, case of Gangnamgu and Songpagu is thought that environment and utilization etc. of area life of old people are affinity with quality of life environment of old people when see that is using various area facilities using electric railway and a bus etc. actively. It is looked by the other that individual's special quality uses area facilities according to life partner's existence and nonexistence and family composition and existence and nonexistence of profession and distinction of sex. Show difference of external behavior according to public garden and market and supermarket and welfare facilities etc.'s location in dwelling environment of area and relation about facilities of area has been formed and old people and dwelling environment of area can know that is that do interaction. Environment that access about facilities may have to be easy, and can live that communicating closely with area's inhabitantses may have to consist so that old people may can run various external life.. Notions of the evaluated value is an profit(+) and expense(-) that decide design intention. To adapt real planning, 1. A raster type space cell has logical site informations. 2. To be evaluate various factor. 3. To reflect operator's design mind, they should add an extra weight on evaluated value.

• 한국환경과학회지
• /
• 제13권3호
• /
• pp.263-277
• /
• 2004

The purpose of this study is to analyze the characteristics of riverbed variation due to the sediment protection weir located on the estuary of the main stream of Taehwa river using I-D finite difference model, HEC-6 model, and the followings are the results of estimating sediment transport rate, amount of scour or deposition, and accumulated amount of deposit according to before and after of the sediment protection weir removal with various flow rates in the channel. Ackers-White transport function produced the greatest sediment transport rate while Meyer-Peter showed the smallest sediment transport rate at the most down stream area of the watershed through the sediment transport rate analyses for various flow rates according to the existence or nonexistence of the sediment protection weir. Toffaleti's and Colby transport function were closest to the average value, and the difference among the results of the sediment transport functions showed up to 8～9 times. Duboy's transport function produced the greatest riverbed variation while Toffaleti's showed the smallest variation through the riverbed variation analyses according to the existence or nonexistence of the sediment protection weir. Yang's was closest to the average value, and the difference among the results of the riverbed variation analyses ranged from 1.4 times to 11 times. It is thought that a sediment transport function must be selected very carefully with respect to the criteria of sediment yield estimation because the analysis results of the sediment transport rate and riverbed variation according to flow rates showed significant differences among the sediment transport functions, and the differences of sediment transport rate and riverbed variation according to the various sediment transport functions decreased as the flow rate increased.

• 가정과삶의질연구
• /
• 제26권5호
• /
• pp.1-14
• /
• 2008

The purpose of this study was to examine factors contributing to financial resources interchange type and amount of the middle aged and the elderly household. For this study, the 6th KLIPS data was used, and sample size was 1,679 households including those with head of household being over the age of 50. Statistical analysis was conducted to examine frequency, percentile, mean and standard deviation, Pearson's correlation, Anova, Duncan's multiple range test and Heckman analysis First, Interchange amount of Benefits type household was significantly different according to the householder's gender, existence or nonexistence of a spouse, age, educational background, home ownership, family type and place of residence. However, interchange amount of provide- type households were significantly different according tohouseholder's gender, existence or nonexistence of a spouse, educational background, whether retired or not, and home ownership. Second, The receptive type of households and net receptive expense of households in terms of the financial resources interchanges and the findings of Heckman analyses suggest that the variables to have a significant effect on the receptive types of financial interchanges were as gender, age, education level, retired or not, and current economics. Factors having an effects on net receptive expense were age, and family type and for the number of receptive of financial resources, whether there is the receptive of financial resources, total income, total asset. Third, The supplying type of households and net supplying expense of households in terms of the financial resources interchanges, whether or not the type of financially supplying households is significant were residential area, total income, house ownership. Factor having an effect net supplying expense were age, family type, whether there is the supplying of financial resources, family satisfaction, and house ownership.

• 대한전자공학회논문지TC
• /
• 제48권1호
• /
• pp.102-107
• /
• 2011

헌혈원에서 현재 헌혈원 혈액백에 부착된 바코드를 하나씩 스캔하여 관리하는 것을, 관리의 효율성을 높이고 정확성을 높이기 위해 UHF RFID 혈액관리시스템 BIS(Blood information system)을 구현하였고, 고유전율인 혈액이 들어있는 헌혈용 혈액백 (blood bag)에 부착 가능한 UHF RFID Tag 안테나를 설계하였다. RFID Tag 안테나는 부착된 물체의 전기적인 특성으로 인하여 영향을 받으므로, 고유전율인 혈액에 근접 시 태그 안테나의 임피던스 성분이 변하게 되어 태그의 반사손실 및 대역폭에 영향을 주게 된다. 고유전율에 부착된 일반 태그가 냉장고 안에서 인식률이 20%도 미치지 못한다. 그래서 이러한 영향을 고려하여 일반 다이폴 형태의 태그에 반사판을 사용하여 설계하였다. 반사판이 있을 때와 없을 때, 반사판과 다이폴 태그와의 간격, 다이폴 안테나에 T 매칭 구조의 존재에 따라 임피던스를 조절하여 칩과의 정합 회로를 구성하여 최적화된 태그를 설계 및 제작하였으며 제작된 태그의 특성과 인식거리 패턴을 측정 비교하였다. 또한 본 태그를 사용하여 BIS를 구현하여 혈액관리가 실시간으로 되도록 하였다.

• 대한의생명과학회지
• /
• 제15권1호
• /
• pp.17-23
• /
• 2009

The prevalence of patent foramen ovale (PFO) in healthy persons was estimated as about $10{\sim}25%$ and was up to 40% in patients with stroke. Transesophageal echocardiography (TEE) was considered to be the most sensitive method to detect PFO and was used as the gold standard. Transcranial doppler sonography (TCD) of the middle cerebral artery (MCA) during a contrast (saline bubble) injection has recently been proposed as an alternative detecting method for PFO. In this study, we would like to know the difference between TCD value and TEE value in subjects with cryptogenic ischemic stroke. We performed TCD and TEE tests to detect PFO on 64 patients (30 women and 34 men, mean age was 59.4 years) with cryptogenic ischemic stroke. PFO prevalence through TCD was 45.3% (29 of 64 patients) and the prevalence through TEE was 34.4% (22 of 64 patients). There was no statistical significance between PFO test and TCD test (P=0.206). But TCD had a sensitivity of 90.9% (20 of 22 patients), specificity of 78.6% (33 of 42 patients), positive predictive value of 69.0% (20 of 29 patients), and negative predictive value of 94.3% (33 of 35 patients). We concluded that TCD was a highly sensitive method for detecting a right-left shunt. Therefore, the non-invasive TCD test is a method more effective than the anti-invasive TEE test in the cost and evaluation of the existence or nonexistence of right to left shunt in addition to the screening method of the cerebrovascular disorder. Considering these points, TCD test could be recommended for patients with cryptogenic ischemic stroke as a useful and convenient method for screening of the existence or nonexistence of a right to left shunt caused by PFO.

• 대한환경공학회지
• /
• 제28권12호
• /
• pp.1293-1303
• /
• 2006

본 연구에서는 식물군락이 조성된 일부 학교 정온시설을 선택하여 도로교통소음 특성을 파악하고 식물군락 유무에 따른 소음의 효과를 분석하였다. 차량을 4가지로 분류할 때 전체 교통량에 가장 기여하는 차량은 소형차로 나타났고 전체 교통량 대비 도로소음에 가장 영향을 미치는 차량은 오토바이로 나타났다. 교통량(Q)과 자롱차 속력(V) 관계에서 자동차 속력이 증가할수록 소음도는 감소하였다. 하지만 자동차를 4가지로 분류한 후 각 자동차 속력의 분포별로 분석한 결과, 소형차의 경우 교통량은 $2016{\leq}Q{\leq}2388$ 및 속력 67 km/h에서 소음도가 감소한 결과를 제외한 모든 구간의 교통량에 따른 속력에서 소음도가 증가하였다. 또한 다른 차종(중형차, 대형차, 오토바이 등)에서는 교통량에 따른 차량속력에 의해 모든 구간에서 소음도가 증가하였다. 식물군락 유무에 따른 두 집단 차이를 쌍체 t 검정을 수행한 결과 두 집단간 차이(p<0.05)가 있었고 식물군락이 존재하지 않는 지역에서 주간과 야간의 차이를 이표본 t 검정을 수행한 결과 두 집단 간 차이(p<0.05)가 있었다. 하지만 식물군락이 존재할 경우 주간과 야간의 차이를 비교시 두 집단 차이(p>0.05)가 없었다.

• Journal of applied mathematics & informatics
• /
• 제25권1_2호
• /
• pp.201-216
• /
• 2007

In this paper we consider the difference equation $$x_{n+1}=\frac{a+bx_{n-k}\;-\;cx_{n-m}}{1+g(x_{n-l})}$$ where a, b, c are nonegative real numbers, k, l, m are nonnegative integers and g(x) is a nonegative real function. The oscillatory and periodic character, the boundedness and the stability of positive solutions of the equation is investigated. The existence and nonexistence of two-period positive solutions are investigated in details. In the last section of the paper we consider a generalization of the equation.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2002년도 하계학술대회 논문집 B
• /
• pp.1205-1207
• /
• 2002

As going through technical transition of signal control logic to mechanic, electric, electronic etc., railway signalling system utilizing computer control technology has recently been developed and used since railroad service had been firstly started in 1825 by beginning that horseman kept red color sign and notified something wrong existence and nonexistence of front route to train driver in the Britain. In this paper, the domestic technical change process of signalling technology to be a basic of train control technology is discussed and then reviewed about technical trend of advanced nation's development.

• 한국지진공학회:학술대회논문집
• /
• 한국지진공학회 2000년도 추계 학술발표회 논문집 Proceedings of EESK Conference-Fall 2000
• /
• pp.296-303
• /
• 2000

The purpose of this study is to find inelastic behavior and ductility capacity of reinforced concrete bridge columns under earthquake. Material nonlinearity is taken into account by comprising tensile, compressive and shear models of cracked concrete and a model of reinforcing steel. The smeared crack approach is incorporated. In boundary plane at which each member with different thickness is connected, due to the abrupt change in their stiffness local discontinuous deformation can be taken into account by introducing interface element. Also an analytical model is developed to express the confining effects of lateral tie which depend on the existence or nonexistence and the amounts of transverse confinement, etc. The proposed numerical method for inelastic behavior and ductility capacity of reinforced concrete bridge columns will be verified by comparison with reliable experimental results.