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        검색결과 4

        1.
        2012.12 구독 인증기관 무료, 개인회원 유료
        This study was conducted in order to evaluate three different non- invasive blood pressure measurement methods (NIBP) in comparison with direct blood pressure measurements in anesthetized dogs. Ten normal healthy Beagle dogs (mean age; 3.7 ± 1.01 yrs, mean body weight 10.2 ± 1.15 kg) were enrolled in this study. BP was measured using three different methods, i.e., Doppler (DOP), oscillometric, and high density oscillometric (HDO) methods, simultaneously, five times in each subject under anesthesia at three different locations (right, left front legs, and tail). The blood pressure value measured by the Doppler method was the closest to the value measured by the direct method. Although the accuracy and consistency of BP measured by three different non-invasive methods differed according to the method, all methods, except the conventional oscillometric method, were acceptable for monitoring systolic blood pressure in anesthetic dogs. The inter-measurement variations in DOP and HDO were minimal without affecting the consistency of the test results.
        4,000원
        2.
        2012.04 KCI 등재 서비스 종료(열람 제한)
        This study proposes lighting simulation approach to assess lighting quality on motor ways and walk ways considering each type of form and growth of roadside trees. Simulation approach to assess quality of lighting is frequently used for lighting design which guarantees secure of drivers and pedestrians during the night time. But, road side trees which have diverse benefits for citizens acts on obstacles during night time needs lighting. The results of this study shows a possible way for tuning the aims of both lighting and road side tree. It will be possible to develop harmonic design standards for road way lighting if further study achieved based on the result of this study.
        3.
        2009.05 KCI 등재 서비스 종료(열람 제한)
        This study aims to find out negative factors against public safety in urban parks. Longitudinal data between 1994 and 2008 were analyzed to suggest management implication for high quality security and safety in urban park. Results are summarized as follows. Firstly, investigation of visitor to the park at night reveals that visitors who were elderly, walking out, and family group increased, and that most visitors took a stroll for one hour around 8:00pm. Olympic park (e.g. leisure facility 66.7%), Hyo-won park (e.g. vacant lot 23.8%), Jang-an park (e.g. near hedge 30.1%), and Mae-tan park (e.g. leisure facility 20.8%) were revealed as latent places of serious criminals. Secondly, both in 1994 and in 2008, principal factors of public safety were summarized as fear for violence(X1) and fear for closed space(X3). These factors took 3.22 followed by 3.07 respectively in the overall mean of public safety of parks. Thirdly, overall mean of public safety takes 2.22 in 1994 and 2.96 in 2008, which shows uncertainty of effective management of facilities with a viewpoint of visitors. All parks shows negative trend in public safety, in short.
        4.
        2005.10 KCI 등재 서비스 종료(열람 제한)
        Presently, aquatic plants are used for the water purification in inland water. This study was carried out to investigate the water purification effect of aquatic plants, Oenanthe javanica and Typha angustata. The experiment was conducted in outdoor flowing water was conducted for ten days. Water quality was measured in terms of water temperature, COD(chemical oxygen demand), SS(suspended solids), Total N, Total P. The results of field experimentation showed that hydraulic retention time was the earliest in July and August 2003, and there were not any particular changes of monthly water temperature in inflow water and outflow water. As we look at the changes taken place in inflow water and outflow water throughout the whole experiment period, the change of water quality in summer was salient, especially SS removal ratio showed distinguished change as 25%, when the pebble filter and aquatic were attached to it. The removal rate of COD, total N total P were 14.7%, 8% and 9%, respectively. In relating the length of water extension to the change in water quality, the water quality tended to get lower generally in proportion to hydraulic retention time.