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Sb-첨가 SnO2 나노선 네트워크를 이용한 고속응답 가스센서
곽창훈 ( Chang Hoon Kwak ),우형식 ( Hyung Sik Woo ),이종흔 ( Jong Heun Lee ) 한국센서학회 2013 센서학회지 Vol.22 No.4
The Sb-doped SnO2 nanowire network sensors were prepared by thermal evaporation of the mixtures between tin and antimony powders. Pure SnO2 nanowire networks showed high sensor resistance in air (99 MΩ), similar gas responses to 4 diffferent gases (5 ppm C2H5OH, CO, H2, and trimethylamine), and very sluggish recovery speed (90% recovery time > 800 s). In contrast, 2 wt% Sb-doped SnO2 showed the selective detection toward C2H5OH and trimethylamine, relatively low resistance (176 kΩ) for facile measurement, and ultrafast recovery speed (90% recovery times: 6 -18 s). The change of gas sensing charactersitics by Sb doping was discussed in relation to gas sensing mechanism.
곽창훈(Chang Hoon Kwak),김재홍(Jae Hong Kim),김중환(Joong Hwan Kim) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.6
riie snbjects werc 269 patients with uncomplicated gonococcal urethritis, who visited the Veiereal Disease Clinic of Choong-Ku Public Health Center in Fieoul from August to Decernber 1984. ()ni hundred and four of 108 patients treated with 1.anamycin, 2 gm, IM plus anipi illin,3.5 gm, p0 plus probenecid, 1 gm, PO regirrien recovered with 65(62. 5 post-gonococcal urethritis(PGlJ) and 4(3.7%) failed, One hundred and seven of III patients treated with kanamycin, 2 gm, IM plus talarnpicillin, 2 gm, PO plus probenecid, 1 gm, po regimen recovered with 71 (66. 4% ) post-goriococcal urethritis and 4(3. 6%) failed. It is suggeste,d that both these antibiotic comlbination regimens have similarly good effect in the treatment. of gonococcal urethritis.
노영석(Young Suck Ro),곽창훈(Chang Hoon Kwak),김재홍(Jae Hong Kim),김중환(Joong Hwan Kim),한기철(Gi Chul Han) 대한피부과학회 1985 대한피부과학회지 Vol.23 No.1
The lesions of central nervous system in tuberous sclerosis often calcify, especially those present in the perivascular region, allowing the computed tomography to make early and definite diagnosis, even when patients intelligence was normal, seizures were absent, or clinical findings were not specific, We report three cases of tuberous sclerosis, which showed pathognomic subependymal paraventricular calcification in brain CT.
피부진균증에 대한 경구용 Ketoconazole의 치료효과
전장원(Jahng Won Junn),황도헌(Do Hun Hwang),곽창훈(Chang Hoon Kwak),김재홍(Jae Hong Kim),김중환(Joong Hwan Kim) 대한피부과학회 1984 대한피부과학회지 Vol.22 No.1
Seventeen volunteers with cutaneous dermatophytosis were enrolled in a clinical trial to evaluate the effectiveness of oral ketoconazole. The group included six patients with tinea cruris(6 malcs), four with tinea corporis, including one with tinea faciai, (3 males, 1 female), three with tinea versicolor(3 males) and four with tinea capitis(3 males, 1 female). The oral ketoconazole was taken within 10 minutes after a meal. The patients under the age of 10 received 100mg of ketoconazole per day, whereas those aged over 11 received 200mg of ketoconazole until the skin lesions are cured. Seventeen patients had complete clinical and mycologic cure, one responded clinically. It required one to four weeks to become culturally negative for tinea cruris, four to seven weeks for tinea corporis, three to eight weeks for tinea capitis. For tinea versicolor it required three to five weeks to become negative by scotch tape method. Adverse reactions to ketoconazole were absent and no patients required discontinuation of the drug. The results indicate that ketoconazole is a safe and effective drug for the treatment of dermatophytosis.
곽창훈,양인섭,전장원,김재홍,김중환 대한화학요법학회 1985 대한화학요법학회지 Vol.3 No.2
Thirty-eight patients of mucocutaneous candidiasis were evaliated with oral Ketoconazole. The group included 18 patients with cutaneous candidiasis, 7 with oral candidiasis and 13 with vaginal candidiasis. The patients under the age of 10 years received 100㎎ of ketoconazole per day, whereas these aged over 10 received 200㎎ of ketoconazole until the skin lesions were cured. Twenty-two patients had complete climical and mycologic cure, 3 responded clinically. Thirteen nonpregnant women were selected on the basis of proven vulvovaginal candidiasis and were divided into two groups. One group received 400㎎ of ketoconazole per day for three days, and the other group received 200㎎ per day for three days. Of the 5 patients who received the 200㎎ dosage, 2 were cured. Only one female patient had complained nausea, but it is negligible, and no patients required discontinuation of the drug. Ketoconazole is effective drug for oral therapy of dermatophytosis in human, and deserve further study.