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차용준,박지영,장성민,김훈,김소정 창원대학교 생활과학연구소 1998 생활과학연구 Vol.- No.2
Volatile flavor components in salt-fermented anchovy sauce were analyzed by simultaneous steam distillation-solvent extraction/gas chromatography/mass spectormetry. Ninety-eight compounds were detected in sample. These compounds were composed mainly of aldehydes(13). ketones(6), alcohols(16), aromatic compounds(21), N-containing compounds(7), esters(5), S-containing compounds(5) and miscellaneous compounds(25). Among these, 3-(methythio)propanal, 2-ethyl-3.5-dimethylpyrazine, dimethyl disulfide and dimethyl trisulfide having high odor values were supposed to be playing to be a major role in the overall aroma of salt-fermented anchovy sauce.
차석빈,허윤정 한국문화관광학회 2001 문화관광연구 Vol.3 No.1
To seek the possibility of holding Japaneses' overseas wedding events in Korea, this study conducted an empirical analysis of the Japanese visiting Korea. Research findings are as follows. First, the overseas wedding market of the Japanese seems to be promising. Second, the Japanese obtain information on the wedding through mainly travel agents and internet six months in advance before the ceremonies. Third, they prefers the traditional wedding style of the destination and western style course menus. Finally, the Japanese considered 5 factors(food/process of wedding ceremonies, cost, atmosphere/weather, wedding location/program, safety/convenience) when they consider the overseas wedding. This study concludes with marketing implications of the results.
산소분압열처리를 이용한 폐기물산화철로부터의 단상 및 복합상 산화철의 제조
임희대,이찬규,허석환,박연준 國立 昌原大學校 産業技術硏究所 1998 産技硏論文集 Vol.12 No.-
Oxygen pressure heat-treatment with CO-CO2 gas mixture was introduced to purify the waste oxidized iron in shortblast process. To determine the temperture and oxygen partial pressure, Fe-O phase diagrams was used. single phase FeO, Fe₃O₄and composite phase FeO-Fe₃O₄, Fe-FeO could be obtained sucessfully in the range of 10(-17)∼10(-19) in Po₂at 800℃.
골수강과 관절면을 침범한 족무지 건막 거대 세포종 : 증례보고
이호승,성노현,이신노,허윤무 충북대학교 의학연구소 2000 忠北醫大學術誌 Vol.10 No.2
16세 남자 환자가 우측 족무지 동통과 종창을 주소로 내원하였다. 방사선 사진상 제1 족지 근위지골 골간에 낭포성 병변이 관찰되어 낭포성 골종양 의심하에 소파술 및 골이식술 시행하였다. 수술 소견상 단 족무지 굴근에서 기원한 연한 쵸콜렛 색깔의 소엽성 연부종양이 제1 족지 근위지골 피질골을 침식하여 골수강을 통해 관절면을 천공해 있었고, 조직 소견상 건막 거대 세포종에 일치하는 소견이 관찰되었다. 저자들은 제1 족지 근위지골을 침식하여 원위 관절면을 천공한 공격적 양태를 보이는, 족무지 굴근에서 기원한 건막 거대 세포종을 치험하였기에 문헌 고찰과 함께 보고하고자 한다. A 16-year-old man admitted with painful swelling of right big toe. plain radiographic examination demonstrated a cystic bony lesion at the metaphysis of proximal phalangeal bone toe. On operative findings, The medullary cavity was filled with multilobulated soft tissue mass and distal articular surface of the proximal phalangeal bone perforated by mass invasion. The mass was orginated from the sheath of the flexor hallucis brevis tendon. After curettage the mass, cancellous bone graft was done. Histologically, it was compatible with giant cell tumor of tendon sheath. We report a case of giant cell tumor of tendon sheath that invaded medullary cavity and articular surface of phalangeal bone
김용민,원중희,최의성,서중배,이호승,허윤무 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2
연구목적: 만성 요통 환자의 많은 수가 직업 등 주변 환경과 심리 상태의 영향을 받는 것으로 추정되나 그 연관성은 아직 논란이 많다. 본 연구에서는 설문 조사를 통하여 만성 요통 환자의 심리사회적 특성을 알아보고자 하였다. 대상 및 방법. 1997년 7월부터 1998년 12월까지 6주 이상 지속된 만성 요통으로 본원 정형외과 외래를 내원한 환자들 중 기질적 원인이 불명확한 62명의 환자들에서 직업, 유발요인, 치료 등 요통 관련 요소 설문과 Minnesota Multiphasic Personal Inventory (MMPI)를 실시하였다. 요통 관련 사항에는 통증의 기간, 정도, 통증이 유발 또는 심해지는 자세, 그리고 본인이 생각하는 요통의 원인 등을 포함하였다. MMPI는 전체 평균을 이용한 방법과 two-code 방법을 이용하여 평가하였다. 결과: 만성 요통환자의 직업 상 실내에서 앉아 일하는 직업이 가장 맡았으며 일정한 자세를 오래 유지하며 앉거나 서 있는 경우 증상이 악화되는 것으로 기술되었다. MMPI에서는 건강 염려증, 우울증, 히스테리의 세 척도의 평균이 55이상으로 상승되어 있었다. Two-code 방법에서는 92% (46/50)의 환자에서 위 세 척도 중 적어도 하나 이상 상승되어 있었다. 결론: 만성 요통 환자들에서 일상 생활의 자세와 직업이 요통의 발생 및 악화에 영향이 있을 것으로 보여졌다. MMPI를 통한 심리 인성 검사 상 건강 염려증, 우울증, 히스테리의 성향이 증가되어 있어 요통의 발생과 만성화에 심리적 요소가 영향을 미치는 것으로 보여졌다. 사회경제학적, 정신심리학적 요인이 만성 요통에 미치는 영향의 규명을 위한 다양하고 심도 있는 연구가 필요하다고 생각된다. Purpose : Socioeconomic and psychologic factors seem to affect incidence, severity, and chronicity of low back pain. Purpose of this study is to survey socioeconomic factors and document psychoneurotic traits via MMPI in chronic low back pain patients. Materials and Methods : From July 1997 to December 1998, questionnaire about low back pain-related factors such as duration, severity, posture, occupation etc. and MMPI were given to patients who visited our department for chronic low back pain()6weeks). 62 patients completed, and 50 of them completed MMPI. The answers were analyzed. MMPI scores were evaluated in mean±SD method and two-code method. Results : Sedentary workers were the most common. And symptoms were told to be elicited by long sitting or standing posture(job) . Hs, D, Hy scales of MMPI, which are know as "neurotic triad by two-code method was observed in 92% (46/50) . Conclusion : It seemed that job and posture had Important role in chronic low back pain. And, it seemed that chronic low back pain patients had some psychoneurotic traits especially in hypochondriasis, depression, and hysteria. More investigations to document the influences of socioeconomic and psychoneurotic factors in chronic low back pain seems to be necessary.
A study on Iris Recognition using Wavelet Transformation and Nonlinear Function
Hur Jung-Youn,Truong Le Xuan,Lee Sang-Kyu Korean Institute of Intelligent Systems 2005 한국지능시스템학회논문지 Vol.15 No.3
Iris recognition system is the one of the most reliable biometries recognition system. An algorithm is proposed to determine the localized iris from the iris image received from iris input camera in client. For the first step, the algorithm determines the center of pupil. For the second step, the algorithm determines the outer boundary of the iris and the pupillary boundary. The localized iris area is transformed into polar coordinates. After performing three times Wavelet transformation, normalization was done using a sigmoid function. The converting binary process performs normalized value of pixel from 0 to 255 to be binary value, and then the converting binary process is compared pairs of two adjacent pixels. The binary code of the iris is transmitted to the server by the network. In the server, the comparing process compares the binary value of presented iris to the reference value in the database. The process of recognition or rejection is dependent on the value of Hamming Distance. After matching the binary value of presented iris with the database stored in the server, the result is transmitted to the client.
Design and Fabrication of a Holographic Solar Concentrator
Hur, Tae-Youn,Kim, Hee-Dong,Jeong, Man-Ho Optical Society of Korea 2000 Current Optics and Photonics Vol.4 No.2
The main purpose of this paper is to present the potential of photovoltaic systems using holographic solar concentrators. A hologram used here focuses light, spectrally splits it and diverts unwanted infrared heat away from the solar cell. The output of the hologram appears as a perpendicular thin spectral line and is displaced to solar cells on both sides. To obtain optimum design conditions we used the coupled wave theory and the vector ray tracing method. The measured data showed that the diffraction efficiency was 75 % and the spectral bandwidth was 350 nm.