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최준서(Choe, Jun-Seo),손봉수(Son, Bong-Su),김형진 대한교통학회 2007 대한교통학회 학술대회지 Vol.55 No.-
현재 서울시내 도심도로의 70%이상이 우회전 차로에서 직진과 우회전을 모두 할 수 있는 것으로 나타났다. 또 대부분의 직진-우회전공용차로에서 직진 차량과 우회전 차량의 비율은 50대 50으로 나타났다. 결국 직진 차량은 우회전 차량 때문에, 반대로 우회전 차량은 직진차량 때문에 통행권이 주어져도 진행하지 못하는 경우가 발생한다. 이로 인해 같은 시간 내 교차로를 통과할 수 있는 차량의 수가 줄고 교통사고가 발생하기 쉽다. 본 연구에서는 교차로에서 적정한 우회전 대기차로 길이 산정을 위한 우회전 차량의 도착분포를 연구하였다. 제시된 확률분호는 실측데이터를 이용하여 분석하였고 통계적 검증을 실시하였다.
최준,Choe, Jun 한국과학기술단체총연합회 1997 과학과 기술 Vol.30 No.5
사회적으로 커다란 사건이 발생할 때마다 위기관리가 필요하다느니, 위기대응능력이 부족하다느니 하는 얘기를 자주 듣게 된다. 그러나 위기관리라고 하는 것을 올바로 이해하고 그것을 정착시켜 나가고자 하는 노력은 그다지 찾아 볼 수 없다. 왜냐하면 위기관리를 그다지 발생할 것 같지 않은 어떤 특별한 사건에 대해 어떤 특별한 방법에 의해 대처해야 하는 것으로 생각하기 때문이다. 위기관리는 결코 특별한 상황에 대처하기 위한 특별한 관리가 아니다. 위기를 유발시키는 사건과 그에 따른 상황은 우리의 일상 속에 존재하고 있기 때문이다.
아토피 피부염에서 NaCl-UVB와 연화제-UVB의 치료효과
최준 ( Choe Jun ),이애영 ( Lee Ae Yeong ) 대한피부과학회 2003 대한피부과학회지 Vol.41 No.10
N/A Background : Among various treatment modalities, phototherapy is one of the choices that clinicians can use in the treatment of atopic dermatitis. although UVB phototherapy has its relative shortcomings in efficacy compared to PUVA due to limited light transmission degree, it can also be effectively used for children to have limited value about PUVA. According to recent reports published in Europe, UVB therapy with salt solutions(balneophototherapy), well documented in the treatment of psoriasis, is also being investigated for atopic dermatitis. Objective : A study was designed to compare the efficacy between 5% NaCl solution with UVB and mineral oil with UVB phototherapy in patients with severe atopic dermatitis. Method : Sixteen patients with severe atopic dermatitis with lichenifications, erythematous papules and excoriations over 30% of body surfaces were included in the study. Male to female ratio was 9 to 7, and nine of sixteen patients were under 15 years old. application of 5% NaCl solution was done on one side of the extremities and mineral oil on the other side. Subsequently, same dosage of broadband UVB was irradiated on both sides. Treatment was performed 2-3 times per week with a maximum of 20 treatments. Result : Difference between the body sites of different treatment modalities was observed in ten of sixteen patients after an average of nine treatment sessions. The skin lesions of 5% NaCl solution treatment were better than those of mineral oil. Improvement was notable especially in patients under 15 years old, because seven out of nine patients showed marked difference in 5%NaCl treated sites. Although there was no clear-cut difference in five out of sixteen patients, three of these five stated to feel less pruritus. One patient dropped out due to burning sensation. Conclusion : The treatment of combined 5%NaCl solution and UVB radiation could be a valuable treatment alternative for severe atopic dermatitis especially in younger population.(Korean J Dermatol 2003;41(10) : 1286~1290)
최준 ( Choe Jun ),최원영 ( Choe Won Yeong ),이애영 ( Lee Ae Yeong ) 대한피부과학회 2003 대한피부과학회지 Vol.41 No.12
N/A Background: Human repeated insult patch tests (HRIPT_s) are a final method for safety assess-ment of chemical ingredients. In the representative HRIPT_s, the Shelanski and modified Draize require 200 participants, but the maximization and modified maximization tests require only 25. Objective: To evaluate the safety of three sunscreen ingredients using the Shelanski and maximization methods. Methods: Octylmethoxycinnamate, butylmethoxydibenzoylmethane, and octyltriazong (BASF) were prepared for the induction, as 25% ointment in which petrolatum base. After a 2-3 week resting phase, patch and photopatch tests were conducted, but pretreatment with SLS was only performed in the maximization test. The results were analyzed using the Chi-Square test. Results: During the induction phase, there were only two (4%) weak positive reactions observed with the Shelanski method, whereas all 25 displayed strong or extremely positive reactions with the maximization method. Butylmethoxydibenzoylmethane displayed the most frequent elicitation reactions; the patch and photopatch tests displayed weak positive reactions in four (2%) and six (3%), and in one (4%) and two (8%), with the Shelanski and maximization tests, respectively. Taking into account two of the six reactors displayed positive reactions to petrolatum with the Shelanski test, the actual number of positive patch test reactions would be four (2%). The difference in results of the two methods was not statistically significant. Conclusion: Although it is not easy to conduct HRIPT on 200 subjects, and the results from the two tests were not significantly different, the reactions from the maximization tests were too severe to be recommended in humans. (Korean J Dermatol 2003;41(12):1592~1596)
배란유도 후 임신 중 진단된 부신피질선종에 의한 쿠싱증후군
김혁 ( Kim Hyeog ),박철홍 ( Park Cheol Hong ),최준 ( Choe Jun ),최은영 ( Choe Eun Yeong ),전영미 ( Jeon Yeong Mi ),김수경 ( Kim Su Gyeong ),신정환 ( Sin Jeong Hwan ),홍서유 ( Hong Seo Yu ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.11
This woman was a secondary infertile patient with amenorrhea, hirsutism, and hyperprolactinemia due to excessive secretion of androgen. We had an impression that her disease was polycystic ovary syndrome, and she became pregnant after ovulation induction.
윤인대,김용규,김진오,박재현,백롱민,최준,Yoon, In-Dae,Kim, Yong-Kyu,Kim, Jin-O,Park, Jae-Hyun,Baek, Rong-Min,Choe, Jun 대한미세수술학회 1999 Archives of reconstructive microsurgery Vol.8 No.1
Digit that were formerly assessed as non replantable may now be replanted with the help of salvage procedure. In case that, venous repair is either marginal or technically impossible and postoperative venous congestion developed following replantation, are treated with the application of medical leeches. From July 1997 to April 1998, the authors performed arterial anastomosis and venous drainage using medical leeches in 3 children(The age of the patients ranged from 13 months to 6 years.) to have a result of aesthetic and functional success with minimizing the complications. Leech therapy has many advantages, to avoid injuring of finger tip, to decrease focal capillary coagulation, to prevent severe bleeding, and to prevent thromboembolism. The authors conclude that the use of medical leeches shows promise as a safe and effective method of providing temporary venous drainage in replanted digits.