일반적으로수위-유량관계곡선식은선형성과등분산성가정을기반으로구축되지만, 측정단면의형태, 단면상·하류의지형요인등으로 인하여 영향을 받기 때문에 실질적인 수위 및 유량의 관계는 관계식 구축에 이용되는 가정에 위배된다. 이로 인한 오차를 줄이기 위하여 곡선식을분할하여이용하고있으나, 측정단면의변화를 고려한관계자의주관적인판단이구간분할의주요근거로이용되고있다. 따라서 본연구에서는이러한주관성을배제하고관측데이터를기반으로객관화된분할근거를제시하고자한다. 곡선식의구간분할을위하여변동계수 를이용한기존의연구를바탕으로변동계수가정규분포를따르는것으로가정하여, 계산된변동계수가전단계에서계산된95%신뢰구간 이내에존재하지않는경우구간을분할하였다. 즉, 변동계수를이용하여집단간의특성을비교하였으며, 변동계수의분포를이용하여분할을 위한기준값을제시하였다. 방법론의추정능력검토를위하여가상의곡선으로부터생성된데이터에제안된방법론을적용하였고, 실제유역에 적용성 검토를 위하여 금강에 위치한 무주 및 산계교 수위관측소 지점에 적용하였다. 결과적으로 자동으로 분할된 관계곡선식을 사용하여 추정의정확도를높일수있을뿐만아니라외삽을하는경우역시그정확도를향상할수있음을확인하였다. 마지막으로실측값을활용한 수위-유량관계곡선식의구축시구간분할전·후의잔차데이터에대하여Shapiro-wilk 정규성검정을수행하였으며, 구간분할후잔차가 정규성을 갖게 되는 것으로 나타났다.

Background : Dibenzocyclooctadiene lignans are secondary metabolites present abundantly in the fruits belonging to the genus Schisandra. According to previous studies, Schisandra lignans exhibit anti-inflammatory, anti-cancer and anti-diabetic properties, as well as an inhibitory effect on platelet aggregation. Therefore, establishing the Korean “Omija” (Schisandra chinensis) as a lignanrich source, in addition to identifying and quantifying the lignans, is extremely valuable. Methods and Results : Dibenzocyclooctadiene lignans were analyzed with liquid chromatography using diode array detection/ mass spectrometry, from methanol extracts subsequently identified by a constructed chemical library of 50 lignans. A total of 27 components of lignan including gomisin S were identified, of which schisandrin, gomisin A, gomisin N, deoxyschisandrin, γ- schisandrin, and schisandrin C were identified as the major components in the Korean Omija, Schisandra chinensis. These compounds were divided into two groups, S-biphenyl and R-biphenyl based on the configurations of the stereoisomers structures with contents of 661.7 and 1350.1㎎ per 100 g dry weight, respectively. The total lignan content averaged 2011.4㎎ per 100 g dry weight, of which schisandrin and gomisin N comprised the majority (771.8 and 420.5㎎ per 100 g dry weight respectively). Conclusions : Lignans which are present in high quantities in the ripe fruit of Schisandra chinensis are important functional compounds that play a major role in the prevention and treatment of human diseases.

This study tried to compare and analyze the thermal comfort index according to GVZ of school green space. For the analysis, this study performed a correlation analysis with weather elements by measuring and calculating UTCI, PMV, and WBGT according to GVZ. GVZ was in the order of Type 3 (5.68 m3/m2) > Type 2 (4.71 m3/m2) > Type 1 (3.37 m3/m2). The average temperature and solar radiation, surface temperature, globe temperature among weather characteristics was in the order of Type 1> Type 2 > Type 3. The UTCI in the school green space was in the order of Type 1 (33.95°C) > Type 2 (33.68°C) > Type 3 (32.73°C). At Type 3 that the GVZ is higher than other Types, it is belongs to range of 26~33°C which gets normal heat stress, and other Types belong to range of 33~38°C which gets strong heat stress. The PMV was in the order of Type 1 > Type 2 > Type 3, and the estimated rate of unsatisfaction was appeared as 100%, so it is uncomfortable even in the school green space that it requires measure on heat wave. The WBGT was in the order of Type 1 > Type 2 > Type 3. The result of the correlation analysis according to the heat comfort index shows that, the higher the green ratio and GVZ are, the UTCI has negative relationship, and PMV and WBGT were analyzed as have no relationship according to green characteristics, but this result was considered as measured at green space when the temperature was at its highest so the uncomfortable feeling was also highest. The result of correlation analysis of green characteristics and the weather elements shows that GVZ and insolation, temperature has negative relationship, so it is considered that the higher the GVZ is, the solar radiation and the temperature are decreased.

In this study, the heat insulating performance increase the indoor temperature of the building is applied to the concrete was compared with plain concrete. As a result, the indoor surface at the outside temperature of 10.4 ~ 22.4 ℃ temperature conditions showed a difference of up to 0.6 ℃, the lowest 0.6 ℃, indoor temperature is up to 0.2 ℃, 0.2 ℃ lower results showed a minimum.

When the concrete is subjected to impact of the projectile, compressive stress wave is transmitted to the rear side. When the compressive stress wave reached the rear side, is was reflected as a tensile wave. And, when the tensile stress in the concrete matrix exceeded the dynamic tensile strength, crack in the concrete was occurred.

Fracture behavior of concrete subjected to dynamic loading is affected by loading rate and strain rate. In this study, compressive strength properties according to strain rate of fiber reinforced concrete by rapid loading with 500ton rapid loading test machine was analyzed.

Currently in Korea, there are about 1200 dam (height 15m or more) Recently, natural disasters are caused by abnormal climate and they have caused a lot of damage. but many institutions about dam don’t resolve this problem because dam was owned and managed by other institutions. Therefore, to develop Web2.0 Smart Management System, it will be possible to combine different institutions and do efficiently intelligent management of dam.

This study presents the experimental process to secure the shear capacity of connections for form integrated insulation structure. To this end, this study evaluates the capacity and safety of connections through the bearing capacity experiment according to the various design variables.

The study was conducted for making accident-free, accurate and effective construction site to improve the smart construction site management system by using new developed technology such as IoT, RFID, and etc... The study recommends new IoT construction management application and web with a structure of the system