Coagulant와 Hydro-cyclone을 결합한 상향류식 여과시스템

김명호,고대현,정다래,이준호 한국교통대학교 2021 한국교통대학교 논문집 Vol.56 No.-

Coagulation Hydro-cyclone can be added to the upward flow filtration system utilizing Fiber-Ball filter media to analyze and evaluate the treatment characteristics in order to Non-point pollution, which is a pollution problem, more efficiently. Hydro-cyclone was added to the existing Filter column to create an Up-Flow Filtration system. The treatment efficiency according to the operating conditions such as turbidity, suspended solids, pH, inflow flow rate, and head loss was analyzed. Comparison of inflow water and runoff water suspended solids and turbidity analysis results showed a minimum treatment efficiency of 93.21% and a maximum treatment efficiency of 99% or more. It was analyzed that the SS and turbidity analysis results showed a treatment efficiency of 80% or more before and after backwashing twice. When Coagulation Hydro-cyclone was added compared to the existing filtration system, it was analyzed that particles that had not been treated as an adsorption fiber company filter medium between particles could be treated.

韓國人에서 VNTR D1S80 遺傳座位의 遺傳的 多樣性 및 集團의 均質性 檢定

明賢君,黃迪駿,洪鎔杓,金致弘 大韓法醫學會 1994 대한법의학회지 Vol.18 No.1

Human genomic DNA prepared from whole blood sample was analyzed to estimate allelic frequencies and genetic diversity at a hypervariable variable number of tandem repeats(VNTR) D1S80 locus in 127 Korean. Target DNA fragments were amplified by polymerase chain reaction(PCR) and separated by polyacrylamide gel electrophoresis. Then, the following results were obtained. 1. A total of 23 alleles were identified at this locus, which is the biggest number of alleles observed at this locus so far(cf. 16 from U. S. Caucasians and 15 from Finnish). 2. Sixty-two genotypes, included 3 homozygotes and 59 heterozygotes, out of a total of 276 probable genotypes were also observed, which might be resulted from the small sample size compared to the number of alleles observed in this study. 3. General pattern of allelic distributions was concordant with those observed in previous studies from Finnish and U. S. Causccasians where two alleles, M18 and M23, were observed most frequently and the rest of them were observed rare(<10%) with the exception of M30 allele(14.6%) in Korean. The number of M30 allele is suspected to be increased in Korean at or after the divergence of Korean from the hypothetical ancestor probably caused by random genetic drift such as founder effect of bottleneck effect. 4. Higher level of heterozygosity was obtained in Korean(H=0.866 and H=0.881) than in Finnish(H=0.77 and H=0.79) and U. S. Cauccasians(H=0.808 and H=0.797). 5. Population homogeneity was tested to corroborate the obtained population genetic parameters calculated based on the assumption of Hardy-Weinberg equilibrium, which could be done by Chi-square test between the observed number of alleles and the expected number of alleles, because of the small sample size analyzed in this study which resulted in high proportion of undetected genotypes (78.5%) and several genotypes significantly deviated from hardy-Weinberg expectation in a sample population. The result suggests that samples were drawn from geneticically homogeneous population. 6. This study suggests that Korean is more diversified than Finnish and U. S. Cauccasians on the basis of the number of alleles and the level of heterozygosity, although Korean is known to be entirely composed of single race. Though we need more informations from other Asian countries, this result suggests frequent gene flow from neighbor countries, which is also expected based on the old Korean history of frequent invasions from Japan and China. 7. Based on the Hardy-Weinberg expectation, 216 out of 253 genotypes at D1S80 locus can be shared by less than 5 individuals among 1,000 unrelated individuals by chance. Our results suggest that the analysis of VNTR D1S80 locus can provide powerful, but imperfect by itself, DNA markers for forensic study, which can be corroborated by analyzing additional VNTR loci.

효율적인 에너지 사용을 위한 계층적 센서 네트워크

李明賢,崔閏和 弘益大學校 科學技術硏究所 2005 科學技術硏究論文集 Vol.16 No.-

This paper presents a coverage-aware, energy-efficient node scheduling scheme for wireless sensor networks. It identifies redundant nodes using a coverage-aware scheme to reduce redundant data transmissions and to use their energy for communication to the base station. Simulation results show that the proposed scheme can noticeably improve system lifetime while maintaining sensing coverage.

선형 최적제어 관측기와 결합된 다항식 급수분석(Ⅱ)

曺明鉉,鄭盛夫 瑞逸專門大學 1992 論文集 Vol.10 No.-

에어리프트 펌프를 이용한 정밀여과막 세척

이준호,김명호,고대현 韓國交通大學校 2022 한국교통대학교 논문집 Vol.57 No.-

The MBR method, also known as the membrane separation active sludge method, does not require a precipitation tank and has many advantages such as stable discharging water. The biggest disadvantages of the MBR method, which has many advantages, are maintenance problems due to reduced flux due to fouling, decreased processing efficiency, and membrane replacement. In this study, in order to reduce membrane pollution, membrane cleaning was performed using the washing principle of the airlift pump, and shear force according to the amount of air was analyzed using the Ansys Fluent computational fluid dynamics program. As a result of the analysis, the film recovery rate was 93.8% to 97.3% and the average was 95.8%, and the CFD analysis showed the highest shear force at about 5.425×10-2Pa at 10m3/m2/hr. It is believed that the MBR device using Airlift in this study can maximize the flux recovery rate by reducing the problem of membrane contamination.

韓國人에서 重合酵素反應으로 檢索되는 COL2A1 遺傳座位의 對立遺傳子 頻度

黃迪駿,明賢君,李羲碩,郭明宰 大韓法醫學會 1994 대한법의학회지 Vol.18 No.2

With the human genomic DNAs obtained from 128 unrelated Korean, the VNTR region 3' to the collagen type Ⅱ gene(COL2A1) was amplified in vitro by the polymerase chain reaction(PCR), and separated by 3% agarose(2% Nusieve and 1% Seakem) and 4% polyacrylamide gel' and analyzed to get the population genetic data for COL2A1 VNTR allele such as allele and genotype frequencies, and hetrozygosity were calculated based on the amplified fragments length polymorphism(AMP-FLP). 1. In 128 unrdlated Korean, 4 allelic variants(K2, K3, K4, and K5) at COL2A1 VNTR locus are observed, but K1 allele which was also observed in other study was not. 2. The observed allele frequencies for K4, K5, k3 and k2 are 0.519, 0.383, 0.094 and 0.008, respectively. 3. Of 10 possible genotypes, only 4 heterozygous genotypes(K5/K4, K5/K3, k4/K3, K4/K2) and 2 homozygous genotypes(K5/K5, K4/K4) are observed. However, the observed numgers of homozygous and heterozygous genotypes(46 and 82, respectively) are not significatly different from their expectations, 53.3 and 74.7. 4. The observed genotype frequencies are ordered as K5/K4(0.445), K4/K4(0,242), K5/K5(0.117), K5/K3(0.086) and K4/K2(0.086), which are in accordance with the Hardy-weinberg prediction based on the observed allele frequencies. 5. The overall heterozygosity at this locus is 0.563, while its expectation based on the allele frequencies is 0.584

MPEG-7기반의 영상 특징 정보 메타데이터 저작도구 설계 및 구현

심갑식,신현갑,박명철 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

The image is the picture digitalize visual information of real world. For using the various information in image, After we extract the feature information of image, and can use each of feature information. Recently, metadata information is used for the content-based retrieval in image. In this paper, we have designed and implemented authoring tool which use image feature information as metadata based on MPEG-7. The metadata, including feature information and reality information of image, can be used in the various parts using image.

임베디드 소프트웨어 디버깅을 위한 추적도구의 설계 및 구현

심갑식,박명철,신현갑 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

In order to develop SoC program for embedded systems, a tool that can remotely debug from host system is needed. Because the existing remote debugging systems using GDB don't offer information on the SoC program execution in real-time, it is difficult to observe the condition of the program execution, and also they have the limited characteristics to tools and use costly adaptors. In this paper, a real-time tracking tool that can record SoC status on the execution of the assigned instructions is introduced and an economical USB-JTAG adaptor is proposed. And we show that this tool can track the execution of a composed program in the target system based on PXA255 processor.

기(氣)수련이 정신건강 프로파일에 미치는 효과

정영자,정현익,이명수,서채문 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

This cross-sectional investigation evaluated the trend of psychological changes by Qi-training using a self-report inventory of emotional distress, Symptom Check List-90-Revision (SCL-90-R). Forty-one normal healthy subjects (mean age: 21.0±5.4) and one hundred-twenty-three Qi-trainees (divided into three groups, primary, middle and high level) participated in this study. Primary level group has received 1-4 months Qi-training (mean age: 22.0±7.8, n = 41); middle level group has 5-12 months Qi-training (mean age: 20.0±7.8, n = 41); and high level group has more than 1 year Qi-training (mean age: 22.7± 6.7, n = 41). Our results show that all of psychologucal symptom scales of Qi-trainees over lyear were significantly lower scores compared to controls. In addition, high level group had lower global indexes scores than control. A significant negative correlation was found between the Qi-training period and all SCL-90-R subscales except phobic anxiety. These results suggest that Qi-training is effective in protection as well as reduction of psychological symptomatology.

[PA-0031] Insight of Haplotype Effect on the Candidate Genes Related to Preharvest Sprouting

Myeong-Hyeon Min(Myeong-Hyeon Min),Aye Aye Khaing(Aye Aye Khaing),Sang-Ho Chu(Sang-Ho Chu),Yong-Jin Park(Yong-Jin Park) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-