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.

삼차신경 감각핵의 세포활성도와 Substance P 유리에 대한 Capsaicin, Paradol 및 Shogaol의 전통작용기전에 관한 연구 : Ⅰ. 유해자극에 의한 개구반사와 삼차신경 척수감각핵의 Substance P에 미치는 영향 Ⅰ. EFFECTS ON JAW OPENING REFLEX BY NOXIOUS STIMULUS AND RELEASE OF SUBSTANCE P

이종흔,김중수,송형근,박수정,함진숙 대한구강생물학회 1990 International Journal of Oral Biology Vol.14 No.1

The purpose of this investigation was to determine the relative analgesic effectiveness of paradol and shogaol compared with capsaicin, and effects of capsaicinoids on substance P of trigeminal spinal sensory nucleus. Under anesthesia, anterior belly of digastric muscle was exposed and a pair of electrodes was inserted to record the electromyograms. Noxious electrical stimulus was applied to oral mucosa around the mental foramen. Inferior alveolar nerves (IAN) and saphenous nerves were carefully exposed for application of vehicle and drugs to evaluate the effects on digastric EMG (dEMG) and neural conduction, and caudal part of brainstem was exposed to determine the substance P. Vehicle and 1.5% of capsaicin, paradol and shogaol were applied to IAN and saphenous nerves for 30 minutes, respectively. EMG_s of digastric muscle evoked by noxious electrical stimulus were recorded before application of drugs or vehicle, immediately after removal and washing of drugs and at 30 minutes after washing. To examine the effects of the peripheral stimulation on the action potential, stimulating electrodes were placed on the peripheral side of drugs application site and recording electrodes were on the proximal side. Substance P of trigeminal spinal sensory nucleus was collected by push-pull perfusion technique and determined by radioimmunoassay. Capsaicin application on IAN could not influence on dEMG, but paradol and shogaol decrease the amplitude of dEMG. Capsaicin applied locally to nerve decreased amplitude and conduction velocity of only C-fiber, while paradol and shogaol inhibited the neural conduction of C-fiber and Aδ-fiber. Substance P in the trigeminal spinal nucleus was reduced by capsaicin but not by paradol and shogaol.

의복구성학의 연구주제 및 경향분석

이정순,나수임,배주형 복식문화학회 2001 服飾文化硏究 Vol.9 No.2

The purpose of this study is to recognize the real situation of clothing construction to present the desirable direction to establish more scientific and reasonable themes of the study by analysis of the tendency of the clothing construction study. For this purpose, 402 papers on the theme of clothing construction study were excerpted from the first issues to the issues of December in 1999 of Journal of Korea Society of Clothing and Textile, Journal of Korea Home Economics, Journal of the Korean Society of Costume, Research Journal of the Costume Culture, Journal of the Korean Fiber Society, and Journal of the Human Engineering Society of Korea, I analyzed and classified the theme into eight issues of design related clothing construction, study of body types, study of patterns, size of apparel, fitting of clothing, protective clothing and functional clothing, sewing, and the others. The result of the study is as follows. 1. The distribution tendency of the clothing construction study by the journal of each society showed that Journal of Korean Home Economics is 22.9%, Journal of Korea Society of Clothing and Textiles 17.3%, Research Journal of the Costume Culture 12.2%, and Journal of the Korean Society of Costume 6.2%. 2. The distribution tendency of the studying issues showed that study of body types is 29.4%, study of patterns 21.9%, fitting of clothing 11.7%, sewing 10.2%, size of apparel 8.5%, and others 7%, protective clothing and functional clothing 6.7%, and design related clothing construction 4.7%. Considering the above result, we can understand that study of body types and patterns are being studied most actively. 3. Regarding the study tendency by academic issues showed that study of construction elements and design application is chiefly centered of the study of design related clothing construction (35.5%), analysis of body types is centered of the study of body types (46.6%), CAD is centered of the study of patterns (31.1%), and size spec for the ready made patterns is centered of the study of size of apparel (32.4%). As for fitting of clothing, the study was performed in two ways on the changes of the surfaces of human bodies in motion and the functional features of experimental dressing. Regarding the study of sewing, study of fusible interlining was mainly performed (36.6%) and regarding the study of protective clothing and functional clothing, study of brassieres and underwear was chiefly performed. Key words : design related clothing construction(디자인관련 의복구성), study of patterns(의복 및 패턴 연구), size of apparel(의류치수), fitting of clothing(의복의 맞음새), protective clothing and functional clothing(특수복 및 기능복).

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.-

암환자에서 다른 신경학적 증상이 동반되지 않는 두통 : 예비 보고

이성형,안미영,백신혜,이형석,신동익,이상수 충북대학교 의과대학 충북대학교 의학연구소 2010 忠北醫大學術誌 Vol.20 No.1

연구목적 : 암환자에서 신경학적 결손이나 발작 등이 동반되지 않는 두통의 원인과 이런 경우 심각한 두개내 질환에 의한 이차두통을 의심할 수 있는 소견의 진단적 유용성을 알아보고자 하였다. 대상 및 방법 : 2005년 10월부터 2009년 1월까지 신경학적 결손이나 발작을 동반하지 않는 두통이 발생한 71명의 암환자를 대상으로 하였다. 자세한 병력을 청취하고 신경학적 검사를 하였으며, 환자의 상황에 따라 적절한 조합의 뇌MRI, 뇌CT, 및 뇌척수액 검사를 시행하였고, 최소한 3개월 이상 추적 관찰하였다. 이 소견을 종합하여 두통의 국제분류 기준(The International Classification of Headache Disorders, second edition) 에 따라 두통을 진단하였다. 또한 심각한 두개내 질환에 의한 이차두통을 의심할 수 있는 소견인 있는 환자군과 없는 환자군 사이에 중추신경계로의 전이빈도가 차이가 나는지 알아보았다. 결과 : 71명 중에 8.5%인 6명에서 중추신경계로의 전이가 관찰되었는데 심각한 두개내 질환에 의한 이차두통을 의삼할 수 있는 소견이 있었던 18명 중에 4명(22.2%), 이런 소견이 없었던 53명 중에 2명(3.8%)이었다. (상대위험도 5.89, 95% 신뢰구간 1.18-29.49). 두통의 다른 원인으로는 지주막하 출혈이 1명, 중추신경계 이외의 감염에 의한 두통이 6명, 항암제에 의한 두통이 1명, 고혈압성 두통이 1명, 방사선 치료와 관련된 두통이 1명, 원발성 찌름두통이 3명, 긴장성 두통이 51명이었다. 결론 : 심각한 두개내 질환에 의한 이차두통을 의심할 수 있는 소견의 유무가 암환자에서 발생하는 두통의 감별진단에 유용하며, 이러한 소견이 동반되지 않는 경우의 두통은 대부분 양성이다. 하지만 이러한 결론을 바탕으로 향후 보다 많은 대상 환자군을 통한 연구가 필요할 것이다. Purpose: Headache in patients with systemic malignancy is a great concern to neurologists. We performed this study to investigate the frequency of metastasis as the cause of headache in the patients with systemic malignancy and the usefulness of symptoms suggesting underlying serious pathologies especially when headaches do not accompany any other neurological symptoms. Materials and Methods: From October 2005 to January 2009, we prospectively collected 71 patients with systemic malignancy complaining headache but not having any other accompanying neurological symptoms. After thorough history taking and neurological examination, we performed a neuroimaging (MRI or CT) and CSF study according to the clinical situations of individual patients and followed them at least 3 months and diagnosed headaches according to The International Classification of Headache Disorders, second edition (ICHD-II). We compared the incidence of intracranial metastasis between headaches with symptoms suggesting underlying serious illness and those without. Results: Six (8.5%) out of 71 patients had intracranial metastasis: 4(22.2%) out of 18 patients with symptoms suggesting underlying serious illness, 2(3.8%) out of 53 patients without them (relative risk 5.89, 95% confidence interval 1.18-29.49). Other causes included subarachnoid hemorrhage (1 patient), headache attributed to infection (6), headache attributed to drug (2), hypertensive headache (1), headache attributed to radiotherapy (1), primary stabbing headache (3), and tension headache (51). Conclusion: This study suggests that headache symptoms suggesting underlying serious disorder are valuable in differentiating the causes of headache without any other accompanying neurological symptoms in patients with systemic malignancy and headaches without those symptoms might be usually benign. However, more broad study should be made for these value and relationship.

충남 서북부지역 여성의 질세포진 검사에 대한 임상적 고찰

이석민,선우재근,장경택,서수형,김민관,배동한 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.2

Pap smear were performed to 30,294 women living in the north-west of Chung-nam. The result are summarized below 1. Positive vaginal cytology was 1.09 percent. 2. 72 percents women in their 30's and 40's experienced vaginal cytology. 3. Vaginal cytology was performed at a decreasing rate as age increases. 4. Positive cytology rate is 2.42% higher than average for elderly women over the age of 65. The present date indicates that pap smear is being widely recognized to be important but they needs to be continued advocacy for pap smear.