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SVD 알고리즘 및 HMM을 이용한 얼굴 및 눈 패턴 검출
진경찬,김명남,신장규,손병기,조진호 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
The studies about automatic pattern detection of the eye and face from the human image acquired by the CCD image sensor have good applicabilities in the industry, home automation, and data communication field. In general, pattern detection method consists of feature based matching and template matching. In feature based matching, the feature vector is extracted with DLM(dynamic linking matching), EBGM(elastic bunch graph matching), HMM(hidden markov model) matching and knowledge based matching using statistical characteristics. In template matching, in general, the template vector is extracted with PCA(principal component analysis). When these method applied in the face and eye detection, each method has its own merits and some disadvantage. Therefore, by combined utilization of SVD(singular value decomposition) and HMM algorithm, is expected that we can selectively make use of each methods advantage and it result in improved detection accuracy. In this paper, we proposed the method for face and eye detection, which was combined by the two algorithms, to be suitable for the high speed image processing using DSP chip or microprocessor. In the beginning, template matching was followed by a template extraction using batch SVD algorithm and then face pattern was classified and recognized by HMM algorithm which is one of feature based matching technique. Finally, eye pattern detection was performed by pattern search neural network utilizing eigeneye image.
黃辰淵,張明翊 부산대학교 기초과학연구소 1994 부산대학교 기초과학연구소 연구논문집 Vol.14 No.-
The various weathering products derived from andesitic rocks in the Guweol mountain area of Pusan have been studied in order to investigate the occurrence, characteristics and evolutional trend of clay minerals in the weathered rock and soil using mainly X-ray powder diffraction method. Kaolinite and halloysite are very abundant in the weathered rocks and soils derived from andersitic rocks of this area. Also, 12Å-and 14Å-minerals occur in the considerable amount. 12Å-minerals have been identified as mica/vermiculite interlayer minerals showing the 25Å basal reflection. Their crystal sizes are relatively big showing more than 10 micron in diameter. Two types of 14Å-mineral, which are vermiculite/smectite interlayer mineral and A1-vermiculite, have been observed. Kaolin minerals consist of kaolinite, 10Å and 7Å halloysite. Kaolinite relatively dominates in the strongly weathered soil of the area. In contrast with kaolinite, 12Å-and 14Å-minerals such as vermiculite/smectite and mica/vermiculite interlayer minerals tend to occur in the weakly to intermediately weathered products, Based on their occurrences, it strongly suggests that they are intermediate products in the course of the weathering process from the parent materials into the kaolin mineral.
혐기성소화에서 Aeration에 의한 수소생성에 관한 연구
이명주,김상철,장현섭,황선진 경희대학교 2005 環境硏究 論文集 Vol.14 No.-
Hydrogen gas was continuously produced by treating glucose-containing synthetic wastewater with sewage digester sludge. This research investigated the effect of aeration on biological hydrogen production in anaerobic digestion process. Aeration of 0.8, 2.5, 5, 10, 20 L-O₂/g-SS were used. After aeration, the batch reactor at 35℃ was operated on a mineral salts-glucose(20g/L). The maximum hydrogen production rate of 570 ml/L-area. was found at oxygen dosage of 5 L-O₂/g-SS and pH uncontrolled. When the reactor was controlled at pH 5.5 with 6N Noah and 4N CHI, hydrogen production rate is 3 times higher than that of the control.
윤상현,장현섭,이명주,황선진 경희대학교 2005 環境硏究 論文集 Vol.14 No.-
This research investigated the effect of mechanical pretreatment and ozone/catalytic oxidation on the reduction of sewage sludge. The pretreatment process was carried out to enhance sludge solubilization. The degree of solubilization was evaluated based on the DR. TS 1∼4% sludge was treated by ball mil using glass beads of 1 mm in diameter with the 50% (v/v) zircon bead loading. TS 4% showed 4 times higher solubilization efficiency than that of untreated sludge. The combination of the mechanical pretreatment and ozone/catalytic oxidation(10 mg Mn/g TS) showed higher efficiency than ozone/catalytic oxidation. At the 40% solubilization efficiency of sludge achieved by using ball mill, combination treatment showed 3 times higher than control. Ozone/catalytic oxidation improved the solid reduction effectively in the lower pH, presumably due to a high production of OH radical.
KS H ISO 1242 표준의 평가 : 라반딘 정유의 산값 측정
전혜림,이은지,장혜진,손현화,김건,김남선,전명숙,이동선 서울여자대학교 2010 자연과학연구논문집 Vol.22 No.-
The acid value (AV) as well as the ester value of essential oil is an important index to evaluate quality of essential oil. The official standard analytical method of KS H ISO 1242 dealing with “Essential oils - Determination of acid value” was assessed experimentally using two lavandin essential oils obtained in France as an example. One French lavandin oil sample showed the results of AV= 0.9 by both indicator method and potentiometry. Another sample showed AV = 1.9 by indicator method and AV = 1.6 by potentiometry. Latter lavandin oil sample exhibited significantly higher acid value than maximum value of 1 described in the standard. This result suggests that latter lavandin oil was contaminated, because this oil was contained in an orange juice bottle. Results of this study proved that KS H ISO 1242 could be used as a suitable scientific standard for the determination of acid value of essential oils.
Jang, Myoung Jin,You, Dalsan,Park, Jin Young,Kim, Kyung,Aum, Joomin,Lee, Chunwoo,Song, Geehyun,Shin, Ha Chul,Suh, Nayoung,Kim, Yong Man,Kim, Choung-Soo Korean Society for Stem Cell Research 2018 International journal of stem cells Vol.11 No.2
<P>Although previous and ongoing clinical studies have used stromal cells during renal ischemia-reperfusion injury (IRI), there is little consensus regarding the optimal protocol. We aimed to optimize the protocol for hypoxic preconditioned human bone marrow-derived mesenchymal stromal cell (HP-hBMSC) therapy in a rat model of renal IRI. We determined the optimal injection route (renal arterial, renal parenchymal, and tail venous injection), dose (low-dose: 1×10<SUP>6</SUP>, moderate-dose: 2×10<SUP>6</SUP>, and high-dose: 4×10<SUP>6</SUP>), and injection period (pre-, concurrent-, and post-IRI). During optimal injection route study, renal arterial injections significantly reduced the decreasing glomerular filtration rate (GFR), as compared to GFRs for the IRI control group, 2 and 4 days after IRI. Therapeutic effects and histological recoveries were the greatest in the group receiving renal arterial injections. During the dose finding study, high-dose injections significantly reduced the decreasing GFR, as compared to GFRs for the IRI control group, 3 days after IRI. Therapeutic effects and histological recoveries were the greatest in the high-dose injection group. While determining the optimal injection timing study, concurrent-IRI injection reduced elevated serum creatinine levels, as compared to those of the IRI control group, 1 day after IRI. Pre-IRI injection significantly reduced the decreasing GFR, as compared with GFRs for the IRI control group, 1 day after IRI. Therapeutic effects and histological recoveries were the greatest in the concurrent-IRI group. In conclusion, the concurrent-IRI administration of a high dose of HP-hBMSC via the renal artery leads to an optimal recovery of renal function after renal IRI.</P>
House Dust Mite Increases pro-Th2 Cytokines IL-25 and IL-33 via the Activation of TLR1/6 Signaling
Jang, Yong Hyun,Choi, Jin Kyeong,Jin, Meiling,Choi, Young-Ae,Ryoo, Zae Young,Lee, Hyun-Shik,Park, Pil-Hoon,Kim, Sun-Uk,Kwon, Taeg Kyu,Jang, Myoung Ho,Im, Sin-Hyeog,Moon, Sun Young,Lee, Weon Ju,Lee, Se Williams & Wilkins 2017 The Journal of investigative dermatology Vol.137 No.11