전도성 고분자 센서 어레이를 이용한 휘발성 유기 화합물 가스 인식

이경문,주병수,유준부,황하룡,이병수,이덕동,변형기,허증수 한국센서학회 2002 센서학회지 Vol.11 No.5

휘발성 유기 화합물 가스(Volatile Organic Compounds)를 인식하고 분석하기 위하여 전도성 고분자 센서어레이를 이용한 시스템을 제작하였다. Polypyrrole와 Polyaniline을 화학중합법으로 센서에 전도성고분자막을 형성하였고 이를 통해 VOC 검지용 센서 어레이를 제작하였다. 센서어레이로부터 측정되는 다차원 데이터는 주성분분석법(PCA)과 RBF(Radial Basis Function Network)을 이용하였다. 제안된 시스템으로 VOCs 가스를 인식하는데 있어서 RBF Network이 PCA방식보다 더욱 효율적인 것으로 판단되었다. We fabricated gas recognition system using conducting polymer sensor array for recognizing and analyzing VOCs(Volatile Organic Compounds) gases. The polypyrrole and polyaniline thin film sensors which were made by chemical polymerization were employed to detect VOCs. The multi-dimensional sensor signals obtained from the sensor array were analyzed using PCA(principal component analysis) technique and RBF(radial basis function) Network. Throughout the experimental trails, we confirmed that RBF Network is effective than PCA technique in identifying VOCs.

비만세포주에서 Histamine 유리에 관한 연구

김형룡,국윤아,신민,이홍수,원진숙,김형민,이영미,정헌택,이혜숙,안녕형 원광대학교 생명공학연구소 1995 생명공학연구소보 Vol.3 No.1

요골동맥을 이용한 관동맥 조영술의 유용성

윤정한,이승환,이한요,김장영,김일회,최윤종,이형준,이명옥,김승년,황성오,홍인수,최경훈 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.10

추황배(Pyrus pyrifolia Nakai cv. Chuhwangbae) 과피로부터 1종의 Sterol과 3종의 배당체 화합물의 단리·동정

이유건(Yu Geon Lee1),조정용(Jeong-Yong Cho),이현주(Hyun Joo Lee),이용현(Yong Hyun Lee),이상현(Sang-Hyun Lee),한태호(Tae-Ho Han),김월수(Wol-Soo Kim),박근형(Keun-Hyung Park),문제학(Jae-Hak Moon) 한국식품과학회 2013 한국식품과학회지 Vol.45 No.5

본 연구에서는 배의 유용성 증명을 위한 일환으로 배의 화학성분을 분자수준에서 밝히고자 하였다. 이에 배 과피 MeOH 추출물을 용매분획하여 얻은 EtOAc-산성 분획과 EtOAc-중성분획을 대상으로 Sephadex LH-20, silica gel, 그리고 ODS colmn chromatography와 HPLC를 이용하여 정제 및 단리하였다. 그 결과, EtOAc-산성 분획과 EtOAc-중성 분획으로부터 각각 2종씩의 화합물을 단리하였다. 단리된 화합물 1-4는 1H- 및 13C-NMR 분석을 통하여 각각 (S)-(+)-2-cis-abscisic acid O-β-D-glucopyranosyl ester (화합물 1), 1-[4-O-β-D-glucopyranosyl]phenyl ethanone(piceoside, 화합물 2), β-sitosterol (화합물 3), 그리고 β-sitosteryl 3-O-β-D-glucopyranoside (화합물 4)로 동정되었다. 단리된 3종의 배당체 화합물(화합물 1, 2, 4)들은 본 연구에 의해 배로부터 처음 동정되었으며, 화합물 3은 추황배로부터 처음 동정되었다. 본 연구결과가 배 함유 성분연구는 물론 배의 기능성 해명 연구에도 추후 중요한 기초자료로 활용되길 기대한다. We isolated and identified antioxidants from acidic and neutral ethyl acetate fractions of the peel of pear (Pyrus pyrifolia N. cv. Chuhwangbae). We isolated 4 compounds from the methanol extract, by using 3 different types of column chromatography (Sephadex LH-20, silica gel, and octadecylsilane) and preparative HPLC. We identified the isolated compounds as (S)-(+)-2-cis-abscisic acid O-β-D-glucopyranosyl ester (compound 1), 1-[4-O-β-D-glucopyranosyl]phenyl ethanone (picroside, compound 2), β-sitosterol (compound 3), and β-sitosteryl 3-O-β-D-glucopyranoside (compound 4) by nuclear magnetic resonance analysis. We are the first to report the identification of compounds 1, 2, and 4 from pear.

림프종 환자에서의 갈륨, TI-201 그리고 Tc-99m MIBI 섭취의 비교

천경아,조인호,원규장,이경희,이형우,현명수,이재태,이규보 영남대학교 의과대학 2002 Yeungnam University Journal of Medicine Vol.19 No.2

Purpose; Ga-67 scintigraphy has been used for the evaluation of tumors, especially lymphoma. Recently, Tl-201 and Tc-99m MIBI were also used to tumor imaging. Tl-201 and Tc-99m MIBI had better physiologic characteristics than Ga-67, so we studied 32 biopsy proven lymphoma patients (male 24, female 8, mean age 46 years) with Ga-67, Tl-201 or Tc-99m MIBI and compared the scan findings. Materials and Methods: Twenty-three of 32 patients were injected 74-111 MBq (2-3 mCi) of Tl-201, before chemotherapy and imaged with dual-headed SPECT (Prism 2000, Picker, USA) at 30 minutes after injection. Delayed images were obtained after 3 hr in 8 patients. Twenty seven of 32 patients were injected 740 MBq (20 mCi) of Tc-99m MIBI and imaged at 30 minutes after injection. 111-185 MBq (3-5 mCi) of Ga-67 was injected in 12 patients and imaged at 48 and 72 hours after injection. Twenty eight patients were diagnosed as non-Hodgkin's lymphoma and others were Hodgkin's lymphoma. Results: Twenty patients were positive on Tl-201 scan and 3 patients showed negative findings. One of these 3 patients, Tc-99m MIBI and Ga-67 scan were positive. Twenty two patients were positive on Tc-99m MIBI scan and 5 patients showed negative findings. One of these 5 patients, Tl-201 was positive and 2 were positive on Ga-67 scan. Ten of 12 patients showed positive findings on Ga-67 scan. The sensitivity of these agents were 83.3%, 87.0% and 81.5% for Ga-67, Tl-201 and Tc-99m MIBI, respectively. The sensitivity was highest in Tl-201 scan, but there were no significant differences among three tests. In this study, there was no significant difference of uptake ratios between early and delayed images of Tl-201. Conclusion: Scintigraphy with Tl-201 and Tc-99m MIBI in lymphoma patients have similar sensitivity with Ga-67.

아파트 안방의 공간구성요소에 관한 연구

이청웅,강형구,박수연 朝鮮大學校 建設技術硏究所 2002 建設技術硏究 Vol.22 No.1

In this study, as it is said that housing planning can be completed in correlation with major living space, they should recognize the characteristic of furniture use as well as various activities of life as well as various activities of life which are carried omit at home. In this study, the results of each research are summarized as follows. First, diverse activities of life focused on personal lives took places in An-bang. The type of furniture use was composed of standing-oriented type, both standing and sitting and continuous sitting type. When it comes to the preference of the use of furniture, most people preferred to use beds and sofas, they also wanted to diminish An-bang and expand a living room. Second, focused on the pattern of furniture use according to the characteristic of each dweller, the younger, and the more educated, the more they used An-bang as a main space for the husband and wife and they referred to use in a standing-oriented furniture. They also wanted to expand a living room instead of curtailing An-bang in the use of space. Third, when 1 studied main activities of life according to the type of furniture use, there weren't any family activities of life at An-bang in case of standing-oriented type families. There were a few activities of life in case of continuous sitting type and both the standing and sitting type families, but it scarcely happened. Regardless of the type of furniture, people preferred to expand the living room instead of diminishing An-bang. Fourth, the age of housewives turned out to influence the type of the use of furniture, so 1 could come to a conclusion that younger Housewives preferred to buy a standing-oriented furniture, there wasn't any difference in a living room.

Polymer Light Emitting Diode의 발광특성 연구 : A study on electoluminescence properties of PLED with poly [2-(2'-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene]

이상협;배형철;송석태;한찬수;채희백 순천향대학교 기초과학연구소 2010 순천향자연과학연구 논문집 Vol.16 No.2

In order to know how the [2-(2'-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene] (MEH-PPV) layer works in organic light emitting diode, two different types of devices were fabricated, which are MEH-PPV single layer devices and MEH-PPV/tris (8-hydroxy-quinoline)aluminium(Alq3) bilayer devices. On the indium-tin-oxide(ITO) glass anode MEH-PPV layer was first spin-coated, and the Alq3 layer and the aluminium(Al) anode were vapor-deposited sequentially. The devices shows a trend that has lower current, luminous efficiency in case the thickness of the device is larger. Some bilayer devices, however, show more improved performance than other devices of smaller total thickness. This results were discussed on the basis of improved exciton formation resulting from balanced carrier transport.

國際流通經路上의 中間商에 대한 考察

李秀珩 慶北大學校 經商大學 經濟學科 1983 慶商大學論集 Vol.11 No.-

외측상과염에 관한 고찰

이문환,신형수 대한정형도수치료학회 2005 대한정형도수물리치료학회지 Vol.11 No.2

Lateral epicondylitis is characterized by pain at the lateral aspect of the elbow, commonly associated with resisted wrist or finger extension and gripping activities. Lateral epicondylitis is also known such as lateral epicondylosis, tennis elbow, or tendonitis of the wrist extensor muscles, especially extensor carpi radialis brevis. Lateral epicondylitis is a common musculoskeletal lesion in the clinical states, so physical therapist usually meet a patients who has the lateral epicondylitis. But many of physical therapists are treating patients based on a self know-how, so I want to describe a systematically about lateral epicondylitis and give a objective information on the lateral epicondylitis. And now I want that they will be treat patients with lateral epicondylitis not a self-experience but based on a objective information.

각국의 경찰부패통제제도에 관한 비교 연구

이황우,남형수 동국대학교 사회과학연구원 2008 사회과학연구 Vol.15 No.1

Although the South Korean government has for a long time exerted to prevent and control corruption of public officials, it seems still pervasive in South Korea. The corruption scandals of the police are also considered a part of this social problem. For example, the extent of police corruption cases has been reduced since the National Police Agency in South Korea vigorously implemented anti-corruption policies and attempted to clean its organization. However, it is seemed that police corruption still remains in the particular divisions in a police department, such as investigation bureau, order maintenance team, and so forth, in which the officers frequently make contacts with citizens in a daily manner. For citizens, police corruption is perceived as a barometer of corruption of public officials since the police department is a frontline entity of law enforcement agencies. Police corruption undermines police accountability and legitimacy of law and authority. In order to enhance citizens' confidence of the police, it is inevitable to establish effective policies and measures to prevent police corruption. This study, by comparing diverse anti-corruption policies of the police across countries, aims to suggest a new systemic control model of police corruption 1) enhancing the education of police ethics, 2) improving police culture, 3) encouraging self-cleaning activities by a practical evaluation, 4) considering the settlement of systemic innovation, 5) establishing an anti-corruption system, and 6) encouraging citizen participation. 정부에서는 그동안 공직부패 척결을 위하여 범정부차원에서 다양한 정책적 노력을 기울여 왔으나 여전히 부패가 만연한 나라라는 오명을 벗지 못하고 있다. 경찰도 예외는 아니라서 강력한 부패근절방안과 조직 차원의 지속적인 자정노력으로 경찰부패가 많이 사라졌지만, 아직까지도 사건수사와 풍속업무분야 등 대민접점부서에서의 비리는 완전히 근절되지 않고 있다는 평가를 받고 있다. 경찰은 최일선의 법집행기관으로서 경찰부패는 국민이 피부로 느낄 수 있는 공직사회 부패의 바로미터로 인식되고 있다. 이러한 경찰부패는 법집행력의 약화를 초래하게 되고, 법을 집행하는 경찰이 법을 어기거나 제대로 집행하지 않는 다면 법과 권위를 스스로 깨뜨리는 행위가 된다. 따라서 국민으로부터 신뢰받는 경찰이 되기 위해서는 경찰의 부패방지대책을 수립하는 것이 급선무라고 생각한다. 이에 이 연구에서는 각국의 경찰부패통제제도를 비교 분석하여 보다 근본적이고 새로운 경찰부패통제시스템의 도입방안으로 경찰관의 윤리교육 강화, 조직문화의 개선, 실질적 평가를 통한 자율적인 부패방지 노력, 제도적 개선사항의 정착화 방안의 강구, 조직의 반부패시스템 구축, 시민참여제도의 강화 등을 제시해 보았다.