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12M의 고해상도 360° 카메라를 사용한 주차장의 14면 주차 상태 판단 프로그램
이영지(Young-Ji Lee),이희열(Hee-Yeol Lee),고태영(Tae-Young Ko),곽동훈(Dong-Hoon Kwak),김재형(Jae-Hyung Kim),김주호(Joo-Ho Kim),오승진,이태윤(Tae-Yoon Lee),박상민(Sang-Min Park),이승호(Seung-Ho Lee) 대한전자공학회 2019 대한전자공학회 학술대회 Vol.2019 No.6
In this paper, we propose a program to identify 14 parking status in a parking lot using a high resolution 360° camera of 12M. The proposed program consists of three steps: Match with plane image, parking area detection algorithm, and discrimination of parking using learning method. Tests on a model car to evaluate the program to identify 14 parking status in a parking lot using a high-resolution 360° camera of 12M showed 100% accuracy for both parking and double parking. Therefore, the effectiveness of a program to identify 14 parking status in a parking lot using a high-resolution 360° camera of 12M proposed in this paper has been proved.
Jung, Jae-Woon,Park, Ha-Na,Yoon, Kwang-Sik,Choi, Dong-Ho,Lim, Byung-Jin The Korean Society for Applied Biological Chemistr 2013 Applied Biological Chemistry (Appl Biol Chem) Vol.56 No.6
Characteristics of non-point source (NPS) pollution runoff from a public park in Gwangju, Korea were investigated. Results exhibited the highest pollutant concentrations at the start of the rainfall events due to their build-up and wash off processes. The average event mean concentrations (EMCs) were 27.8, 7.2, 56.3, 7.5, and 0.84 mg/L (range: 4.2-54.8 mg/L) for COD, (0.5-20.8 mg/L) for TOC, (22.3-138.4) for SS, (1.4-18.5 mg/L) for T-N, and (0.17-2.02 mg/L) for T-P, respectively. The study site presented a strong first flush effect for most rainfall events. However, no first flush effect was observed in rainfall events with small rainfall factors (e.g. intensity, amount, and runoff depth). On the other hand, the ratios of total pollution loads discharged by the first 20% of runoff volume were 32% for COD, 34% for TOC, 36% for SS, 42% for T-N, and 50% for T-P. Especially, $MFF_{20}$ (mass first flush) values of T-N and T-P were larger than those of other pollutants (COD, TOC, SS), indicating that T-N and T-P are easily transported by stormwater runoff from the public park. First flush management of T-N and T-P, therefore, is required for efficient water quality management of the public park.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
간세포암의 고주파 열치료 후 천자침 경로를 통한 전이 1례
조영완,박석주,진한영,김준영,이재익,강명주,박정하,윤정희,박성재,지삼룡,이연재,이상혁,설상영 인제대학교 2006 仁濟醫學 Vol.27 No.-
Radiofrequency ablation(RFA), as a form of minimally invasive therapy for hepatocellular carcinoma, has become an important treatment modality. Because of limitation of surgery, RFA has become standard therapy for hepatocellular carcinoma in some situations. But there are some complications of RFA such as bleeding, infection, hematoma, adjacent organ thermal damage including intestinal perforation, needle track seeding, and so on. There are few reports in the literature that systematically evaluate the incidence of needle tract seeding and its associated risk factors. And only 2 cases of needle tract seeding of hepatocellular carcinoma after RFA were reported in Korea. We report a case of needle tract seeding of hepatocellular carcinoma after RFA.
Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19
<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>
Brevibacterium albidum중의 제한효소 Bal I의 정제 및 특성에 관한 연구
박정수,배광묵,박재윤,고광삼 朝鮮大學校 附設 醫學硏究所 1987 The Medical Journal of Chosun University Vol.12 No.1
In this report, Bal I endonuclease from brevibacterium albium (ATCC 15831) strain was purified characterized. Bal I endonuclease was purified by the following procedures; ammonium sulfate fractionation, DEAE-cellulose column chromatography, phosphocellulose column chromatography. Bal I endonuclease has a specific site for type II enzyme in that has been proven by the facts that PBR322 DNA cleaved by Bal I endonuclease. All sited cleaved by Bal I are also cut by the speficif endonuclease Hae III from haemephilus aegyptiu. The recognition sequence of Bal I are. ◁수식 삽입▷ (원문을 참조하세요)
γ-ray로 照射된 2,4-dichloropentane
朴允昌,盧在蘭 成均館大學校 1981 論文集 Vol.29 No.-
2, 4-dichloropentane irradiated in a Cobalt-60 source has been studied by gas chromatograph, IR-spectrometer, UV-visible spectrometer and nuclear magnetic resonance. More than four new substances were detected when 2, 4-dichloropentane was irradiated to 20Mrad. Free radicals produced were unstable at room temperature resulting in the formation of 1, 3-pentadiene, a conjugated compound, of which quantity increased as the dose rate increased. The absorption peak of 2, 4-dichloropentane occuring at 240㎜ seems to indicate that 2, 4-dichloropentane is partially hydrogen-bonded.
바이오매스로부터 생산한 바이오차에 의한 수질오염물질 흡착 : Adsorption of Water Pollution by Biochar Produced from Biomass
박윤,정수연,정은서,신윤정,이은주,이재원 전남대학교 농업과학기술연구소 2022 농업생명과학연구동향 Vol.60 No.-
Biochar is produced from lignocellulosic biomass (wood, agricultural and forestry waste, etc.) through thermal decomposition at high temperature. Water pollution (pesticides, dyes, heavy metals, and volatile organic compounds [VOCs]) can be efficiently removed by biochar. In particular, waste biomass is typically used as fuel or thrown away; thus, it is necessary to determine a valuable utilization for it. The process of biochar production is simple and suitable for the production of porous structures. In this paper, 1) biochar production and its characteristics based on biomass types, 2) research trends on the adsorption of water pollution (pesticides, dyes, heavy metals, VOCs) on biochar, and 3) expected effects are discussed.
다양한 파장폭의 가시광선에 의해 중합된 복합레진의 미세경도와 변연누출도
박수만,이재용,한승렬,하상윤,신동훈 大韓齒科保存學會 2002 Restorative Dentistry & Endodontics Vol.27 No.4
Several ways of curing are being tried to improve material's properties and reduce marginal gap. However, all are considering about the pattern of light intensity. It was noted from the preliminary study the change of light wavelength from filter chaning may give an impact on material's property and microleakage. The object of this study was to verify the effect of filters with various wavelength width on the microhardness and microleakage of composite resin; hybrid type of DenFil and submicron hybrid type of Esthet X. Composite resins were cured using 3 kinds of filter; narrow-banded(465-475 nm), mid-banded(430-470 nm), wide-banded(400-500 nm). After the estimation of microhardness, degree of dye penetration and the maximum gap from SEM evaluation were done between 4 groups that showed no difference in microhardness value of the lower surface. The results were as follows: 1. Adequate microhardness could not be gained with a narrow-banded filter irrespective of curing time. At the upper surface. DenFil should be polymerized with middle or wide-banded filter for 20 seconds at least, while Esthet X be cured with middle or wide-banded filter for 30 seconds at least to get similar hardness value to control group. 2. There was little dye penetration in enamel margin, but all dentin margins showed much more dye penetration irrespective of curing conditions. Although there was not statistical difference, groups cured with mid-banded filter for 40 seconds and with wide-width filter for 20 seconds showed relatively less dye penetration. 3. It was revealed from the SEM examination that group cured with wide-banded filter had the smallest gap without statistical significance. Spearman's rho test showed that the correlation between the results of dye penetration and SEM examination was very low. From these results, it could be concluded that curing with wide-width filter would be better than the other techniques. even though the curing technique using mid-width filter seems to have its own unique advantage.
일시적인 피질맹과 인지기능장애로 발현한 간성 뇌병증 1예
윤고운,박민정,박경원,차재관,김재우 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2
A 55-year-old woman presented with transient cortical blindness and multiple cognitive impairments as initial symptoms of hepatic encephalopathy. Her past history was negative for chronic liver disease or gastrointestinal bleeding. Neurologic examinations showed bilateral visual loss with a normal pupillary reflex to light and neuropsychological test showed significant impairments in all cognitive domains. Laboratory tests revealed increased liver enzymes, ammonia level, and positive IgG HbcAb. Ultrsonography of the liver showed findings consistent with liver cirrhosis with splenomegaly. The visual evoked potential study resulted in no wave formation on both sides. T1-weighted brain MRI showed high signal intensity lesions in both globus pallidus and cerebral peduncles of the midbrain. After treatment with lactulose, cortical blindness and cognitive dysfunctions disappeared within several days. In rare cases of hepatic encephalopathy, cortical blindness with cognitive impairments may occur before alteration of consciousness and usually recovers following treatment of the hepatic encephalopathy.