HPLC를 사용한 쌀 중 잔류농약 동시분석법

최재천,이영자,김소희,최수영,최희주,정성욱,박흥재,김우성 한국환경과학회 2005 한국환경과학회지 Vol.14 No.4

A simple and sensitive analytical method based on RP-HPLC with UV detector(225 nm) and mobile phases using 0.1% phosphoric acid and acetonitrile was developed for simultaneous determination of quinclorac, bentazone, 2,4-D, bensulfuron-methyl, dymuron, capropamide, pencycuron, ethofenprox. This method was resulted in recovery of 78~ 96% with RSD 3.3~7.5%. LODs 0.12~0.84 and LOQs 0.34~1.20 ㎎/L. Calibration curves were linear with r of 0.9995~ 0.9999.

전국 10개 종합병원 중환자실 환자의 직장내 Vancomycin-resistant Enterococci(VRE) 보균율, 보균의 위험요인 및 유전적 다양성 조사

정희진,송준영,엄중식,김우주,최선주,최정현,이혁,정문현,이광미,신동현,손보라,최종성,우흥정,권정아,이경원,최강원,박승철 대한감염학회 2002 감염 Vol.34 No.5

프로토콜 분석을 통한 창의적 디자인 전략으로서의 은유와 유추

최한희(Choi, Han_Hee),주서령(Ju, Seo Ryeung),김미정(Kim, Mi Jeong) 한국실내디자인학회 2013 한국실내디자인학회논문집 Vol.22 No.1

The aim of this research is to explore the potential of analogy and metaphor as design strategies for supporting the creative design thinking. For the empirical research on analogical and metaphoric process in designing, we conducted design experiments that consist of three different conditions of given items as stimulation for design inspiration: baseline, surrealist paintings, and housing design collections. The results were analyzed using a protocol analysis in order to obtain more systmatic interpretation of the design processes and strategies. As a result, it was noted that students are more apt to read visual information rather than semantic information in the given items. Instead of the representation of their senses or feelings from the paintings, they visualized the analogical images of the paintings for the design representation. However, analogical and metaphoric thinking derived from the given items seem change a designer’s perspective, thus bring a novel interpretation on design problems, and eventually more creative and meaningful design ideas. An extended research using one-semester training and observation of the design studio process is introduced as a follow-up study for this paper. This research will investigate the long-term effect of the analogy and metaphor on the design thinking.

아버지의 양육 참여행동과 아동의 친사회적 도덕판단능력

정현희(Hyean Hee Jeong),최경순(Kyoung Soon Choi) 한국아동학회 1992 아동학회지 Vol.13 No.1

The purposes of this study are to investigate (1) the father`s child-rearing behavior perceived by children in relation to children`s sex, family type and mother`s job. (2) children`s prosocial moral judgement as related to children`s sex, family type, and mother`s job, and (3) the effect of fathers child-rearing behavior on children`s prosocial moral judgement. The subjects were 432 5th-6th grade elementary school children in Pusan. For the measurement of father`s child-rearing behavior, this researcher developed a father`s child-rearing behavior questionnaire based on Choi`s (1991) questionnaire. For the children`s prosocial moral judgement, the 4 prosocial moral dilemma by Eisenberg-Berg was used. The major findings were as follows. No significant results were found in relation to father`s child-rearing behavior and child`s sex, family type, and mother`s work status. Children`s prosocial behavior was not related to any of the above variables. Significant relationships were found between father`s child-rearing behavior and children`s prosocial moral judgement.

혈액 투석 환자에서 중심정맥 협착에 대한 스텐트 삽입술 : Wallstent Placement

임대승,노상필,이유선,정승현,김보영,이정우,강정아,김정희,이민수,정준용,최시완,정진옥,성인환,이강욱,신영태 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

Stenosis of central vein is a common complication arising after percutaneous subclavian vein catheter insertion performed for temporary vascular access in chronic renal failure patients undergoing hemodialysis. There are several treatment methods for the condition like percutaneous angioplasty(PTA), stent insertion, and surgery, but recent trend is toward PTA and stents. Among the patients diagnosed with chronic renal failure from March 1993 to May 2002 and undergoing hemodialysis through AV fistula, the 14 Patients in whom central vein stenosis arose were selected for the study. A total of 28 percutaneous interventions(5 PTA and 23 stent placement) were performed, and restenosis rate and the time taken till the restenosis in de novo lesions and instant lesions were compared. All 28 cases were operated successfully. The 14 cases that received both anigioplasty and stent placement initially. (de novo lesion : 14 cases), Among the 10 cases with de novo lesion that followed up more than 1 year, 3 cases are currently undergoing hemodialysis without restenosis, and the remaining 7 cases have recurred stenosis with the mean time to restenosis of 10.9 months. In the 7 cases in whom stenosis recurred, 11 interventions were done(instent lesion: 11 cases). 4 of these were using only ballon angioplasty with 100% restenosis rate and the mean time of 3 months until restenosis. The remaining 7 cases were using both balloon angioplasty and stent placement, also with 100% restenosis rate but with the mean time of 12 months until restenosis, which was later than the group receiving only balloon angioplasty. In treating the patients with central vein stenosis, stent placement seems to be more advantageous over PTA in terms of restenosis rate and the mean duration of patency. In the case of instent lesion, inserting the stent for the second time after stenosis recurred lengthened the duration of patency compared to performing balloon angioplasty alone.

鹽化物 含有梁에 따른 鐵分 腐蝕에 관한 實驗的 硏究

최진석,조철희,신용석,고송균,손순채,김정섭 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

As a result of separating river sand and sea sand into the corrosion increased according to the of thinnss or the coating and the Chloride Content and Corrosion of Steel Bar through the experiment, the following conclusions are obtained. 1. There was no corrosion in the case of treating the steel bar with anticorrosive among test specimens cured in the air for 60 days, corrosion was found in the test specimens not treated with anticorrosive and for 60 days of age. 2. The area of corrosion increased according to the thinnss of the coating and the chloride content wher exposed for are more than 60 days. Therefore, it was determined in general that the corrosion progressed more rapidly in water cured specimens than in air cured ones and this was due to the influence of C1_(￣) in the sea sand.

초음파로 진단된 자궁동정맥 기형 2예

최홍준,이해혁,김태희,김정식,남계현,이권해,박성진 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Arteriovenous fistula of uterus is a very rare cause of massive uterine bleeding. However, it is important to make a rapid and precise diagnosis when it does occur, because life-threatening massive vaginal bleeding may occasionally be a symptom of this disease. Uterine curettage or surgical trauma can cause vascular abnormalities, including pseudoaneurysms, acquired ateriovenous malformations, ateriovenous fistulas, and rupture of vessels. The diagnosis is made by angiography, and gray scale ultrasonography, color and duplex doppler ultrasonography, computed tomography, magnetic resonance imaging is helpful. Ultrasonography is the most commonly performed initial imaging examination for evaluation of abnormal uterine bleeding. Color and duplex Doppler US is an appropriate modality for the detection and diagnosis of uterine ateriovenous malformations and for follow-up after embolization. Transcatheter embolization has replaced hysterectomy as the treatment of choice in women wish to retain thier fertility. A case of arteriovenous malformation of the uterus which was diagnosed by ultrasonography. So reported this case with a brief review of the literature.

도심지 터널형 방음벽의 환경적 요인 및 외관 디자인에 관한 연구

최정민,윤태호,박창섭,이경희,박진석 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

This study is to obtain a basic data for a better environment and visual design improvement for the sound barrier tunnel located along the overpasses which passed through downtown areas. For this purpose, the traffic noise was measured in Daegu. In addition. using the sound analysis software, equivalent sounds were checked and analyzed. Finally, the alternatives of sound barrier tunnel were proposed.

Interference Analysis and Correction Scheme of OFDM-based System in the Presence of Wideband Radar Signal Interference

최정희 대구대학교 정보통신연구소 2008 情報通信硏究 Vol.5 No.1

OFDM-based system has been standard wide-band multimedia communication system due to its superiority in the multipath fading environment. Even with the robustness of OFDM system in the interferences, It is vulnerable to get interferences from other system using similar frequency bandwidth due to its wideband characteristic. For examples, harmonics of the out door high power radar system can interfere indoor WLAN system. Using burst yet periodic type characteristics of radar signal, we analyzed interference to the OFDM system performance and attempted to reduce interference on OFDM system by applying several digital techniques such as extended block interleaving, Convolutional coding, and spreading technique using Walsh code for each subcarrier. Finally, we propose the possibility of frequency sharing between OFDM system and radar system via analysis of system performance based on power and bandwidth of the interference signal when Convolutional coding and spreading scheme are concatenated.

근로자의 성격유형별 스트레스 및 사회적 지지-사무직 근로자를 중심으로

최정명,김정희,김숙영 서울대학교 간호대학 간호과학연구소 1999 간호학 논문집 Vol.13 No.2

For provision of basic data concerning development of stress management program based on work place, this study focused on the analysis of work stress and social support according to the type A and B personality. The subject of this study consisted of 111 clerical workers who had been belonged to service companies at Seoul and Kyunggido. The results of this study were as follows: 1) The total work stress was negatively correlated with support from boss and total social support. Also it positively correlated with type A personality workers. Especially the relationship between support from boss and all kind of work stress except work environment was negative. Peers' support was negatively correlated with job decisions and responsibilities. Also the type of personality did not significantly related with social support. 2) The type of personality showed significant relationship with all kind of work stress except borderline and group conflicts. The stress according to personality was higher in type A than in type B workers. Type A personality workers usually got more support from peers than from boss. But, there was no significant difference between type A and B groups. 3) There was no significant difference in social support and work stress in consideration of married status, job status, work career, work types, salary, and others except sex, education, and age. These results show that clerical workers who supported from boss felt less work stress. And, the work stress was higher in type A personality workers. So social support and type of personality must be considered significantly in development of stress management program. Also it was necessary for further investigation regarding to the stress felling in work place according to type of personality and social support. For woman workers, especially the role conflicts at home and work must be considered.