http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
변수환 ( Soo Hwan Byun ),소현준 ( Hyun Jun Soh ),유정훈 ( Jeong Hoon Yoo ) 정보저장시스템학회 2012 정보저장시스템학회논문집 Vol.8 No.2
In spite of many advantages, the practical application of the thin film solar cell is restricted due to its low efficiency compared with the bulk type solar cells. This study intends to adopt the surface plasmon effect using nano particles to solve the low efficiency problem in thin film solar cells. By inserting Ag nano-particles in the absorbing layer of a thin film solar cell, the poynting vector value of the absorbing layer is increased due to the strong energy field. Increasing the value may give thin film solar cells chance to absorb more energy from the incident beam so that the efficiency of the thin film solar cell can be improved. In this work, we have designed the optimal shape of Ag nano-particle in the absorbing laser of a basic type thin film solar cell using the finite element analysis commercial package COMSOL. Design parameters are set to the particle diameter and the distance between each Ag nano-particle and by changing those parameters using the full factorial design variable set-up, we can determine optimal design of Ag nano-particles for maximizing the poynting vector value in the absorbing layer.
치성 협부 봉와직염의 증상으로 발현된 Sweet 증후군; 증례 보고
김용진,변수환,김준영,안강민,전주홍,이부규,Kim, Yong-Jin,Byun, Soo-Hwan,Kim, Jun-Young,Ahn, Kang-Min,Jeon, Ju-Hong,Lee, Bu-Kyu 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.6
Sweet syndrome is characterized by acute onset of fever. neutrophilic leukocytosis, painful erythematous plaque on the face and extremities, infiltration of mature neutrophils in the dermis. Cutaneous lesion and clinical symptoms rapidly improve after treatment with systemic corticosteroids. The cause of sweet syndrome is unknown but the associations with hypersensitivity to bacteria, virus, or tumor antigen have been reported. Sweet syndrome itself can be a premonitory manifestation of malignancy, so diagnostic work up for other internal malignancy is recommended. Because of fever and leukocytosis, cutaneous infections are important differentials. Sweet syndrome can be divided into 4 categories according to associated disease and symptom. (Idiopathic Sweet syndrome, Parainflammatory Sweet syndrome, Paraneoplastic Sweet syndrome, Pregnacy associated Sweet syndrome.) Sweet syndrome is relatively rare disease and the association with myelodisplastic syndrome has been reported. We report a case of Sweet syndrome associated with myelodisplastic syndrome which has initial manifestation of odontogenic buccal cellulites.
네비게이션 수술용 가이드를 이용한 치조정 접근식 상악동 거상술 : 증례보고
나지연(Jiyeon Na),조란영(Ranyeong Cho),장원석(Won-Seok Jang),조승원(Seoung-Won Cho),이상민(Sangmin Yi),온성운(Sung-Woon On),양병은(Byoung-Eun Yang),변수환(Soo-Hwan Byun) 대한치과의사협회 2021 대한치과의사협회지 Vol.59 No.10
Objective : The purpose of this study is to introduce a novel method for safe and precise crestal approach technique for sinus augmentation and implant placement using digital technology. The study further aims to verify effectiveness of the technique in implant placement and sinus augmentation. Materials and Methods : 5 patients who needed crestal approach sinus augmentation for implant placement were collected. There were more than 4mm residual bone in those patients. Intraoral image taking and CBCT taking were performed for digital planning. Digital planning was conducted for crestal approach sinus augmentation and implant placement. 2 navigation surgical guides (crestal/implant) were fabricated for each patient. Results : 10 implants were placed in the patients without specific problems by using crestal approach surgical guide and implant surgical guide. Conclusion : Crestal approach for maxillary sinus augmentation by using navigation surgical guide would be a reliable treatment option for successful implant placement in insufficient residual bone height of maxilla.