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무한 Ridge에서 수심에 따른 흐름 변동에 관한 연구
조규대,이병걸,이규형 여수대학교 1989 論文集 Vol.3 No.-
To study on the zonal flow variation over infinite ridge with various depth potential condervative vorticity equation at three layer depth is derived by using Lossby's equation. By comparing with analytic model of two layer depth infinite ridge and that of three layer one, flow stream line variation patterns are found clearly. The stream line pattern changes propotion to the depth variations. The developed analytic model is good agreement with Rossby's theory and shows the applicability of the real ocean state.
조남인,남형진,박순규 호서대학교반도체제조장비국산화 연구센터 2000 반도체 장비기술 논문집 Vol.2000 No.-
식각 공정은 반도체 침 제조공정 중 필수적인 공정이며 플라스마 식삭 공정을 위한 Etcher장치에서 요구되는 중요기술로는 고밀도 플라스마 원기술, 가스 공급 및 제어기술, 웨이퍼 반송제어 기술, 정전기 척 기술을 들 수 있다. 웨이퍼가 위치 하는 Subastrate holder 는 종래에는 기계적인 clamping 방식에 의하여 웨이퍼르 ㄹ고정하였으나 웨이퍼 온도 불균일성, 파티클 생성, 웨이퍼 휨 발생, 웨이 퍼 에취 사용불가 등 이 방식이 갖는 문제의 한계성을 개선하고 칩 웨이퍼의 생산수율향상을 위해 정전기를 이용한 웨이펴 고정 방식이 연구 개발되었다. 정전기 척 (ESC : Electro-Static Chuck)의 종류는 표면물질에 따라 Polyimide type ESC, Ceramic tyoe ESC, Anodizing type ESC 등으로 구분되며, 본 연구 개발에서는 이세종류의 정전기 척에 대한 각종 기술을 연차적으로 개발하였다. 이를 위하여 본 연구에서는 Polyimide type 정진기 척의 개발에 요구되는 기술 중 Polyimide 기판 위에 구리박막 형성 기술, 히터 내장형 정전기 척을 위한 박막 형 히터 내장형 정전기 척을 위한 박막형 히터 기술, 정전기 척 제작 및 성능 분석의 연구를 수행하였다.
Fosfomycin의 항균효과 및 capillary electrophoresis에 의한 측정법에 관한 연구
윤효인,박승춘,이규승,권진욱,조준형,신광순,김무열,허강준,조명행 충남대학교 수의과대학 동물의과학연구소 1996 動物醫科學硏究誌 Vol.4 No.-
Fosfomycin, a low molecular antibiotic, is to be easily synthesized, therefore to be possibly used in veterinary sectors due to econimic reasons. In this study, we determined the antibacterial activities of fosfomycin against some domestic animal-origin pathogens, and its combined effects with some important antibacterials available. We also compared detection methods of fosfomycin from various measuring instruments. The results obtained through this experiment were as follows: 1. Antibacterial activities of fosfomycin against the pathogens used in this experiment were appeared fairly low. We found the antobacterial activities depanded on the kinds of media and the addition of some material thereins, which suggests the importance of appropriate medium so as to judge the antibacterial activity of fosfomycin. 2. Fosfomycin showed varying antibacterial effects in combination with other antibacterials, which should be taken into consideration when combining other antobacterials especially in the clinical settings. Of the combined antivacterials, fosfomycin had synergistic effects in combination with amoxicillin but antagonistic effects with oxytetracyline. 3. Conventional detection methods using HPLC, GC and spectrophotometer were not appropriate to measure fosfomycin. Capillary electrophoresis by the way of the indirect ultraviolet detection method was good enough to detect fosfomycin in the range of expected concentration in tissues, with the limit of quantitation (LOQ) of 1.25 ㎍/㎖. We recommend the eletrophoresis method could be used to detect fosfomycin, thereby being able to set the optimal dosage for animals and providing the measures in relation with the residual concentration in the meat.
김진호,문준성,문선중,이지은,최재원,은미정,천경아,조인호,윤지성,원규장,이경희 신덕섭,이형우 영남대학교 의과대학 2005 Yeungnam University Journal of Medicine Vol.22 No.2
Central diabetes insipidus (DI) is a syndrome characterized by thirst, polydipsia and polyuria. Langerhans cell histiocytosis is one of the etiologies of DI. Recently we experienced a central DI associated with Langerhans cell histiocytosis. The 44 years old female patient complained right hip pain polydipsia and polyuria. We carried out water deprivation test. After vasopressin injection, urine osmotic pressure was increased form 109mOsmol/Kg to 327mOsmol/Kg (300%). Brain MRI showed a thickened pituitary stalk and at hot bone CT.CT guided biopsy revealed abnormal histiocytes proliferation and abundant lymphocytes, The final diagnosis was central DI associated with systemic Langerhans cell histiocytosis invading hip bone, L-spine and pituitary stalk. Desmopressin and etoposide chemotherapy were performed to the patient.
조백기,박종갑,김형옥,김성욱,백승철,김진우,김시용,안규중,전재복,오지원,김낙인,이규석,오칠환,김수남,김상태,손숙자,신용우,김동석,이원우,권경술,서대헌,황규왕,이종석,고재경,강원형,정기양,최응호,김기홍,박석돈,강승주,함정희,명기범,김방순,구상완,김병수,원영호,김한욱,송은섭,정병수,노병인,홍창권,박장규,한지윤,김광중,구대원,김종민,김재홍,유희준,양경미 대한의진균학회 1998 대한의진균학회지 Vol.3 No.2
Background: Onychomycosis, especially toenail onychomycosis has become one of the common fungal infection and has historically been regarded as a cosmetic rather than medical problem by many patients, even by physicians. Recently, however, there are several reports that is a refractory disease which may cause a deleterious effect on patiets quality of life (QOL). Objective: The purpose of this study was to investigate the impact of toenail onychomycosis on QOL in Korea and to assess the chandes of QOL after treatment. Methods: Total 1004 patients with toenail onychomycosis which was confirmed by clinical findings and KOH preparation were were enrolled at 47 dermatologic centers in Korea, and interviewed with standardized QOL questionnaire before and after sytemic antifungal treatment. Responses to the questionnaire were scored by 5-point scale (1∼4) and averaged, and were analyzed for 5 dimensions of emotional impact, social impact, symptorn and functional impact, patients views concerning treatment, and relationship with doctor. Results: 1. Before and after treatment, the most serious impact was emotional dimension showing 1.90 and 1.30 in average score (AS), and social (AS: 1.14 and 0.83) and symptom and functional impact (AS: 1.05 and 0.92) was also affected. 2. In female rather than male, statistically more significant impact on patients QOL was observed in all dimensions. 3. After treatment, 3 of 5 dimensions were improved significantly - emotional dimension (AS : from 1.90 to 1.30), social dimension (AS: from 1.14 to 0.83), patients view concerning treatment (AS: from 1.34 to 1.02). 4. The drgree of patients satisfaction at the therapeutic effect was very high- 62.4% (immediately after treatment) and 65.8% (9 months affer initiation of treatment) of patients answered excellent or good. Conclusion: This study confirms that toenail onychomycosis has significant impact on the overall QOL of patients. Also the effect of antifungal therapy on patients QOL were watisfactory. Therefore, both doctor and patient should pay more attention to the treatment of onychomycosis. [Kor J Med Mycol 3(1): 115∼124]
Hemospermia due to Multiple Stones in the Enlarged Prostatic Utricle
Kyu Hyoung Cho 순천향대학교 순천향의학연구소 2016 Journal of Soonchunhyang Medical Science Vol.22 No.2
Cystic enlargement of prostatic utricle, a vestigial remnant of mullerian duct, is a rare condition in males. The prostatic utricle distends with urine during voiding and then passively drains. Poor emptying leads to urine retention and stasis. Stone formation may result from obstruction. Patients present clinically with chronic urinary tract infection, hematuria, urethral discharge, epididymitis, and voiding dysfunction. We present a case of multiple stones in the enlarged prostatic utricle associated with hemospermia.
( Il Kyu Cho ),( Woo Young Cho ),( In Sun Cho ),( Heon Woong Kim ),( Seonghoon Hyeong ),( Jang Hyun Park ),( Young Sig Kim ),( Kil Yong Kim ),( Gi-woo Hyoung ) 한국환경농학회 2023 한국환경농학회지 Vol.42 No.4
The golden apple snail (Pomacea canaliculata) has been utilized as a natural and eco-friendly control of weeds in rice paddy fields. However, P. canaliculata can damage other crops. In this study, the effectiveness of plant extracts from various natural sources that are reportedly effective against pests in the control of P. canaliculata was investigated. The four plant extracts were effective against P. canaliculata and ranked in descending order as green tea seed (Camellia sinensis) > root of red spider lily (Lycoris radiata) > leaves of tobacco (Nicotiana tabacum) > root of sophora (Sophora flavescens). The mortality rate of P. canaliculata was increased using 200 to 2000 mg/kg of green tea seed powder. However, shrubby sophora root extract did not significantly increase the mortality rate. The LC<sub>50</sub> and LC<sub>90</sub> of green tea seed, tobacco leaves, shrubby sophora root, and red spider lily root were 900 and 2800 mg/L, 956 and 2320 mg/L, 2162 and 5325 mg/L, and 512 and 1054 mg/kg, respectively. The LC<sub>50</sub> and LC<sub>90</sub> of ground powder of C. sinensis, N. tabacum, S. flavescens and L. radiata were 248 and 646 mg/L, 403 and 733 mg/L, 409 and 905 mg/L, and 493 and 1141 mg/L, respectively. The findings indicate the remarkable control potency of green tea seeds against the golden apple snail. An organic material incorporating the four plant powders may help control green apple snail in an ecosystem-friendly manner.
( Il Kyu Cho ),( So-young Jang ),( Woo Young Cho ),( Yun-su Jeong ),( Jun Seok Kim ),( Seong Eun Han ),( Kil Yong Kim ),( Gi-woo Hyoung ) 한국환경농학회 2023 한국환경농학회지 Vol.42 No.4
The effectiveness of plant-based attractants was studied using large traps, which attracted relatively more snails in agricultural water drainage ditches and rice-cultivating environments, although their effectiveness in rice fields and lakes was limited. The rate began to rise after three hours of observation. Watermelon peel exhibited the highest apple snail attraction rate (13.8%), followed by potatoes (10.0%), and apple peel (8.8%). These values significantly differed from the attraction rate attributed to papaya leaves (F=3.84; P=0.0387). After 24 h, watermelon peel and apple peel indicated a higher rate of attraction (23.4% and 21.7%, respectively), which were significantly different compared with those of papaya leaves and potatoes (F=9.94; P=0.00455). Large bait traps outperformed funnel traps in capturing golden apple snails and trapped a significant number of snails measuring over 1 cm in size. Watermelon peel was the most effective attractant for a large bait trap, followed by apple peel, potatoes, and papaya leaves. On average, 110 snails were captured in the lure net. However, potatoes, apple peels, and papaya leaves caught an average of 93, 80, and 79 snails, respectively. Among the attractants, the lure effect of the snails was not significantly different. The efficiency of large bait traps in capturing snails, regardless of the plant attractant employed, followed the order: apple peel > watermelon peel and potatoes > papaya leaves > melon > Korean melon. Watermelon peel is highly recommended for farmer use, as well as apple peel and potatoes. Utilizing these snail attractants may contribute positively to developing a safe and environment-friendly integrated pest management strategy.