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우정인,신동률,조용길,노태균 東亞大學校 大學院 1999 大學院論文集 Vol.24 No.-
본 논문에서는 PWM 인버터 구동 편측식 선형유도 전동기(이하 SLIM)의 공간백터 제어와 PI 제어를 통한 추력 제어를 행한다. 1차측 권선과 SLIM의 2차측 구조 사이에서 발생하는 공극길이의 떨림은 빠른 응답특성을 얻기위해서 최소화 되어야 한다. 먼저, SLIM의 전압방정식이 추력과 수직력 특성을 해석하기 위하여 d-q축 등가회로로서 나타내어진다. 또한, d-q축 등가회로의 모델링과 해석은 등가회로상에서 전류변동에 따른 강인한 과도 추력특성을 얻을 수 있다. 지령속도와 추력에 의한 SLIM의 직접구동 결과는 실험을 통해서 확인된다.
柳友國,李起煥,權善鎬,盧興泰 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.1
Ovarian Dysgerminoma is a tumor purely of germ cells without any attempt to form teratomatous elements and is believed to arise from the primordial germ cells of the indifferent stage of gonadogenesis. We have had a Dysgerminoma of right ovary in 28 years old multigravida and report the case with review of literatures briefly.
李起煥,柳友國,權善鎬,盧興泰 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.1
Conjoined twins are known to be very rare. A case of thoracoventropagus, aborted on the 20^th weeks gestation, is reported with brief review of the related literatures
최선필,김영빈,노태균,김춘삼,우정인 東亞大學校 2002 東亞論叢 Vol.39 No.-
In this study, we proposed high efficiency wind power generator system for induction generator used SVPWM swiching inverter. First, we propose equivalient circuit for induction generator, it's characteristics equation, and power equation of slip. In addition, we suggest pick Power Traction Slip control methods, adapted variable wind power system. We study simulation result for the proposed system and output power by slip effect. and we identify SVPWM of suitable wind power system by comparison between SPWM and SVPWM Consequently, we show tat the system control result form variable wind power is suitable.
Case Report : Morphea Developing at the Site of Healed Herpes Zoster
( Tae Woo Noh ),( Sang Hoon Park ),( Yoo Seok Kang ),( Un Ha Lee ),( Hyun Su Park ),( Sang Jai Jang ) 대한피부과학회 2011 Annals of Dermatology Vol.23 No.2
Wolf`s isotopic response describes the occurrence of a new, unrelated disease that appears at the same location as a previously healed skin disease, and the most common primary skin disease of this phenomenon is herpes zoster. Several cutaneous lesions have been described to occur at the site of healed herpes zoster, and granulomatous dermatitis and granuloma annulare have been reported to be the most common second diseases. The pathogenesis of the isotopic response is still unclear. Morphea can develop at the site of regressed herpes zoster and a few such cases have been reported. We present here an additional case of morphea that developed at the site of previously healed herpes zoster, and we review the relevant literature. (Ann Dermatol 23(2) 242∼245, 2011)
Lee, Tae-Woo,Kim, Mu-Gyeom,Park, Sang Hun,Kim, Sang Yeol,Kwon, Ohyun,Noh, Taeyong,Park, Jong-Jin,Choi, Tae-Lim,Park, Jong Hyeok,Chin, Byung Doo WILEY-VCH Verlag 2009 Advanced Functional Materials Vol.19 No.12
<P>The short device lifetime of blue polymer light-emitting diodes (PLEDs) is still a bottleneck for commercialization of self-emissive full-color displays. Since the cathode in the device has a dominant influence on the device lifetime, a systematic design of the cathode structure is necessary. The operational lifetime of blue PLEDs can be greatly improved by introducing a three-layer (BaF<SUB>2</SUB>/Ca/Al) cathode compared with conventional two-layer cathodes (BaF<SUB>2</SUB>/Al and Ba/Al). Therefore, the roles of the BaF<SUB>2</SUB> and Ca layers in terms of electron injection, luminous efficiency, and device lifetime are here investigated. For efficient electron injection, the BaF<SUB>2</SUB> layer should be deposited to the thickness of at least one monolayer (∼3 nm). However, it is found that the device lifetime does not show a strong relation with the electron injection or luminous efficiency. In order to prolong the device lifetime, sufficient reaction between BaF<SUB>2</SUB> and the overlying Ca layer should take place during the deposition where the thickness of each layer is around that of a monolayer.</P> <B>Graphic Abstract</B> <P>The operational lifetime of blue PLEDs can be greatly improved by designing a three-layer cathode (BaF<SUB>2</SUB>/Ca/Al) systematically. The roles of the BaF<SUB>2</SUB> and Ca layers in terms of electron injection, luminous efficiency, and device lifetime are investigated. <img src='wiley_img/1616301X-2009-19-12-ADFM200801620-content.gif' alt='wiley_img/1616301X-2009-19-12-ADFM200801620-content'> </P>
노태우 ( Tae Woo Noh ),강유석 ( Yoo Seok Kang ),이운하 ( Un Ha Lee ),박현수 ( Hyun Su Park ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.11
Background: Confluent and reticulated papillomatosis (CRP) is a rare cutaneous disorder, characterized by persistent, scaling brown papules, patches, and plaques located on the trunk, neck, axillae, and shoulders. Many different treatments with variable success have been attempted, and oral minocycline treatment is effective in most patients with CRP. There were a few case reports of CRP responding to topical retinoid, but no clinical studies on the efficacy of the topical retinoid treatment for CRP have been reported. Objective: The purpose of this study was to evaluate the efficacy and safety of the topical tretinoin treatment for CRP. Methods: A retrospective study was performed based on the medical records and clinical photographs of patients with CRP treated with 0.025% tretinoin cream. Results: Nine patients (4 men and 5 women) were enrolled in the study. The mean age of the patients was 17.4 (11∼34) years and the mean age at onset of CRP was 15.1 (3∼33) years. The duration of disease varied from month to 7 years. Six of the nine patients showed complete remission, and CRP lesions improved markedly after averagely 6.2 weeks from the beginning of the topical tretinoin treatment. The treatment response was better in patients without itch than in patients with itch (p=0.048). Adverse effects were detected in 3 patients, and were mild irritant contact dermatitis to the topical tretinoin. Conclusion: We think that topical 0.025% tretinoin treatment is an effective and safe treatment modality for CRP and this treatment can be an alternative or additional modality to the systemic treatment. (Korean J Dermatol 2012; 50(11):937∼944)
노태우 ( Tae Woo Noh ),홍광철 ( Kwang Cheol Hong ),강유석 ( Yoo Seok Kang ),이운하 ( Un Ha Lee ),박현수 ( Hyun Su Park ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.5
Atrophying pityriasis versicolor is a rare variant of pityriasis versicolor. Clinically, atrophying pityriasis versicolor is characterized by well defined, slightly scaly, depressed macules and patches with minimal symptoms. The etiology of the atrophy is unknown, though several hypotheses have been suggested, including immune reaction to antigens of Malassezia species. A 23-year-old male was presented with multiple, slightly brown colored macules and patches on the chest and back. In the potassium hydroxide preparation, lots of yeasts and hyphae were found. A histopathologic study showed multiple yeasts and hyphae on the stratum corneum, focal epidermal thinning, and perivascular lymphocytic infiltration on the upper dermis. The patient was treated with 100 mg itraconazole a day with topical antifungal agents. After 3 weeks of treatment, clinical improvement and mycological improvement were achieved. We present an additional case of atrophying piryriasis versicolor developed on the chest and back with the review of the relevant literature. (Korean J Dermatol 2012;50(5):447∼450)