본 연구는 발가락 지방 소거 검사 시에 종종 저품질의 영상이 획득되는 경우에 주목하여 다양한 조절인자들을 조절하지 않아도 손쉽게 영상 품질을 향상하는 방법을 고안해보았다. 팬텀과 지원자를 대상으로 발 전용 코일만 사용한 경우와 추가 코일을 결합 사용한 경우의 영상을 획득 후 신호대 잡음비(SNR)를 측정하여 비교하였다. 시상면, 관상면, 축상면 모두 T2 Dixon을 시행하였고, 시상면의 경우 T2 지방 소거(FS)와 T1 지방 소거를 추가 시행하였다. 팬텀 검사에서 추가 코일을 결합 사용 시 SNR은 시상면의 경우 T2 Dixon water는 1.21배, T2 FS은 1.22배, T1 FS은 1.17배 향상되었다. 관상면 T2 Dixon water는 1.15배, 축상면 T2 Dixon water는 1.47배 향상되었다. 지원자 검사에서 추가 코일을 결합 사용 시 SNR은 시상면의 경우 T2 Dixon water는 2.07배, T2 FS은 5.17배, T1 FS은 3.20배 향상되었다. 관상면 T2 Dixon water는 1.20배, 축상면 T2 Dixon water는 1.37배 향상되었다. 추가 코일을 결합 사용하였을 때 모든 지방 소거 검사 및 모든 방향에서 SNR 향상의 결과를 얻을 수 있었다. 결론적으로 사용자의 고도 기술 및 추가 검사 시간이 필요하지 않고도 SNR을 향상할 수 있음을 의미한다.

After the 2018 Pyeongchang Winter Olympics, Korean Peninsula got in the mood for peace, prosperity, and unification with the South-North Panmunjom Declaration and the Pyongyang Joint Declaration after a long time. The President Moon spoke in front of the people in Pyongyang for the first in history and won thunderous applause. In line with this atmosphere, South Korean educators are actively responding to it and making constant efforts for inter-Korean education exchanges, such as field trips to North Korea. In this article, I’d like to examine the unification education from the extra-curricular perspective(e.g. students' clubs and creative experience activities), not from the curricular perspective, such as ethics, and social studies.

The physical and sensorial properties of frankfurter with the addition of different sized defatted rice bran (DRB) were investigated. Coarse DRB (DRB-150; D50 = 267 μm), fine DRB (DRB-63; D50 = 115 μm), and super-fine DRB (DRB-JM; D50 = 5.0 μm) were prepared via conventional sifting followed by jet-milling with the milling pressure of 7 bars. Frankfurter was made with the addition of coarse DRB (FDRB-63), fine DRB (FDRB-150), superfine DRB (FDRB-JM), and without DRB (FC) with the DRB concentration of 0.5 and 1.0%. Frankfurter with larger DRB (FDRB-63 and FDRB-150) showed less smoother texture, while frankfurter with superfine DRB (FDRB-JM) resulted in little changes in physical and organoleptic qualities, which were verified by quantitative descriptive analysis (QDA), texture profile analysis (TPA), and color measurements.

The physicochemical and sensorial properties of fibrous tofu with the addition of different sized defatted soybean flour (DSF) were investigated. Coarse DSF (DSF-150; D50 = 279 μm), fine DSF (DSF-63; D50 = 105 μm), and super-fine DSF (DSF-JM; D50 = 5.0 μm) were prepared via conventional sifting followed by jet-milling with the milling pressure of 7 bars. Tofu was made with the 5% addition of coarse DSF (TDSF-63), fine DSF (TDSF-150), superfine DSF (TDSF-JM), and without DSF (TC). The yields of tofu were slightly decreased as coarse and fine DSF were incorporated while the yield of tofu with super-fine DSF was statistically identical with that of control tofu (p<0.05). Tofu with larger DSF (TDSF-63 and TDSF-150) showed less smoother texture and less pure in color, while tofu with superfine DSF (TDSF-JM) resulted in little changes in physical and organoleptic qualities, which were verified by quantitative descriptive analysis (QDA), texture profile analysis (TPA), and color measurements. Each fibrous tofu samples were prepared by mixing soymilk with 5% of DSF from sifting (150 μm, 63 μm sieve) and jet milling process which mentioned as TDSF-150 (DSF average particle size), TDSF-63 (D50 = 105 μm) and TDSF-JM (D50 = 5 μm), respectively. The fibrous tofus were compared to the normal tofu (TC). TDSF-JM has higher yielded (50.98%) among tofu samples. The moisture content of TC, TDSF-JM, TDSF-150 and TDF-63 were 75.81%, 75.47%, 69.89% and 69.80%, respectively. TDSF-JM and TC were having similar L-a-b index. Texture properties of TDSF-JM were similar with TC. On the other hand, TDSF-150 and TDSF-63 has statistically significant higher hardness value and lower point on springiness and cohesiveness compared with TC. Sensory evaluation with quantitative descriptive analysis (QDA) method shown that hardness, mouth feel and beany flavor intensity were decreased with the decreasing of particle size of DSF.

이 논문은 온도차에 따라 변화되는 이온성 액체와 낮은 밴드갭을 갖는 고분자인 poly(2-heptadecyl-4-vinylthieno[3,4-d]thiazole)(PHVTT) 간의 상호작용 및 고분자 의 거동을 조사하 였다. 이온성 액체는 methyl imidazolium chloride([MIM]Cl), butyl methyl imidazolium chloride([BMIM]Cl), tri-butyl methyl ammonium methyl sulfate([TBMA][ MeSO4])를 사용하였으며, 21, 28, 32, 37℃로 온도를 변화시키며 상호작용의 변화를 UV-vis spectroscopy, FT-IR spectroscopy, photoluminescence spectroscopy를 통해 확인한 결과 이온성 액체인 [MIM]Cl, [TBMA][MeSO4]와 PHVTT의 상호작용은 점차 약해짐을 확인할 수 있었지만, [BMIM]Cl은 온도 변화에 따른 상호작용의 변화를 보이지 않았다.

The purpose of this study is to evaluate for performance of biochipfiltration phosphorus treatment process developed by ANT21 and to enhance phosphorus water quality standards to meet the optimum operation conditions of phosphorus treatment process are presented. Alum, FeCl3 as the coagulant used, each with a Jar-Test influent water quality and remaval efficiency of phosphorus treatment process when compared to water quality and removal efficiency of T-P are not a big difference, Alum in the removal efficiency and water quality was the most stable and high coagulant in the case of the removal of CODmn, SS, TN. Alum and Polymer processing efficiency when using the water quality was good and treatment water quality is CODmn 19 mg/L, SS 5 mg/L, TN 26 mg/L, T-P 0.135 mg/L less than water quality standards. If Alum is applied to the field, Alum injection amount per m3 influent unit is 24 g. During the field testing operation period, the influent has average COD mn 27 mg/L, SS 10 mg/L, T-N 22 mg/L, T-P 0.910 mg/L, and the final effluent has average CODmn 22 mg/L, SS 4 mg/L, T-N 20 mg/L, T-P 0.166 mg/L respectively. Average removal efficiency of each water quality item was CODmn 21%, SS 65%, T-N 8%, TP 82% and phosphorus treatment process is effective for the removal of SS and T-P but there is a limit to the removal of CODmn and T-N.

We performed water analysis at the water quality measuring points of Gap Stream and Youdenug Stream to examine the water quality impact by the Youdeung Stream inflow to Gap Stream Lake Park due to moving of movable weir. As analytical results, the SS concentration was found to be high during a rainy season, but during a dry season COD and TP concentrations were found to be high. Especially, the TP was higher after the moving of movable weir. From the measuring results of sediments of Gap Stream Lake Park, the concentration of organic matter due to the decrease of flow rate of water was higher than a non-freshwater period, and the downstream concentration of organic matter was found to be higher than the upstream of Lake Park during a fresh water period. The analytical results of water quality for the inflow of Yudeung Stream for maintaining utility water of Daejeon Stream showed no concentration difference according to the points in organic matters and nutrient salts, but the COD and SS concentrations were found to be partially high in the Okgye Bridge outfall. In case of heavy metals they were not mostly detected, so their effects were not high.

This study of hospital wastewater by activated sludge wastewater treatment facility for your use of the UV disinfection process in the HRT and the UV intensity UV disinfection coliform group by evaluating the effectiveness of the disinfection facilities to meet basic data is for. Study the active sludge process coliform group emissions alone will not meet the accepted standards of the disinfection process needs to be separate. Active sludge from the same UV dose settling water interfere with my a particle substance acts as an argument between the disinfection effect a point of difference, which requires the removal of material a particle before in disinfect. The higher the UV intensity coliform group HRT long the effects of the disinfection was higher, permitted emission standards 3,000 EA/mL to meet UV dose said the 82 mJ/cm2. Existing water pollution prevention facilities, the design of the UV dose 2,310 mJ 1m/cm2 the a safety factor 50% of the company considered the same as after consideration, 120 mJ/cm2 to about 19 times higher than the results of the experiment setup, and of the existing water pollution prevention facilities UV disinfection equipment is installed, the excess.

방사성폐기물 처분시설에 대한 주기적인 환경 감시 및 안전성 평가를 위한 부지정보, 시설물정보와 환경정보에 대한 체계적인 데이터베이스 구축을 위하여 부지환경종합관리시스템 (Site Information and Total Environmental database management System: SITES) 개발을 지난 2년간 수행하였다. 1차적으로 개발된 DB 시스템을 SITES ver.1.0 이라 칭하고 후속 개발되는 안전성평가시스템과 부지환경감시시스템을 포함한 시스템을 SITES ver.2.0이라 칭하여 개발하고 있다. 본 논문에서는 SITES내 구성요소 중에서 부지와 환경에 대한 SITES DB 정보와 환경감시정보를 활용하여 실시간 환경감시, 예측 및 자동경보에 활용하기 위하여 개발되는 Site Environmental Monitoring System (SEMS) 모듈에 대한 설계 개념과 내용을 소개하였다.