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CLOSED LOCK 증례에 대한 악관절 세정술의 임상적 연구
현영옥,강창희,노양호,천영두,이희원 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.1
Purpose : To evaluate the efficacy of arthrocentesis for treatment of closed lock. Material : 42 patients were diagnosed to closed lock by physical, radiographic examriation and undergone arthrocentesis. All patients have a pain and mouth opening limitation on affected site. Method : Arthrocentesis was done under conscious sedation and local infiltration anesthesia, normal saline and some steroid was injected on upper compartment of tempormandibular joint. After pumping and lavage, manual reduction procedure of anterially displaced disc was done. All the patients wear an anterior repositioning splint just after arthrocentesis. The result of arthrocentesis was assessed by pain and difference of mouth opening. Result : Difference of mouth opening after arthrocentesis was improved to 18.85mm and pain was gradually decreased. All patients were worn stabilization type splint after mean 1.84 months. 6 patients had relapse of mouth opening limitation so done arthrocentesis again and delivered good results.
양두영,김동현 濟州大學校工科大學産業技術硏究所 1997 尖端技術硏究所論文集 Vol.8 No.1
In this paper, we analyze a junction-circulator used in RF system of mobile communications and find out ferrite medium which is playing a important role of circulator. Also we presented the electromagnetic field of circulator inside based on modal analysis method. Input impedance and scattering parameter of circulator are searched by χ/μ value which is decided the resonanent frequency and bandwidth. We designed the junction-circulator for 880㎒ and fabricated it. The experimental data for the designed circulator in 880㎒ frequency range agree well with the designed data.
현영옥,강창희,노양호,천영두,김신헌,이희원 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.1
Temporomandibular ankylosis is defined as a situation in which the condyle is fused to the fossa by bone or fibrous tissue. Conditons such as trauma, infection, or systemic disease may predispose to various types of ankylosis, bringing about different levels of limitation in mandibular movement. Most patients with temporomandibular ankylosis are associated with limitation of maximal mouth opening, deviation of the chin toward the affected side, impaired occlusion, chronic pain, compromised oral hygiene, severe facial asymmetry & impeded mandibular molar eruption occurring in childhood. Several techniques to release ankylosis have been described in the literature, showing variable and often unsatisfactory results. The most frequently used operations are gap arthroplasty, interpositional arthroplasty, and exicision and joint reconstruction with autogenous or alloplastic materials. We have managed the two patients of TMJ ankylosis. They had previously TMJ surgery and we treated with gap arthroplasty & active physial therapy. We have obtained favorable results and report these cases with literatures review.
뇌졸중 후 중추성 통증 환자에 대한 동서협진이 진통과 재활에 미치는 영향
이현종,김수영,이상훈,서동민,이두익,김건식,이재동,이윤호,양형인,박재경,최도영 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2003 東西醫學硏究所 論文集 Vol.2003 No.-
Purpose : In order to study the effectiveness of East-West pain treatment on central poststroke pain(CPSP), we evaluated its effect on alleviation of pain and rehabilitation of CPSP Patients who were treated with electroacupuncture and west pain treatment for four weeks. Methods : Twenty four patients diagnosed by their pain characteristics of central pain from stroke were treated with sympathetic nerve block, gabapentin, amitriptyline, and electroacupuncture for four weeks. Pain intensity through the visual analogue scale(VAS), and improvements of mobility and rehabilitation through the modified Barthel index(MBI) and Rankin scale(RS), respectively, before and after pain treatment were also assessed. Results : VAS pain scores were significantly improved from 7.7±1.7 to 4.4±2.0 with pain treatment(p<0.05). In accordance with improvement of pain scores, RS and MBI scores were also improved from 2.88±0.95 to 2.13± 1.01 and from 83.0± 16.9 to 94.7±9.5(p<0.05), respectively, with pain treatment(p<0.05). Conclusions : It was suggested that the active pain treatment was contributed to the rehabilitation of CPSP patients, resulting in improvement of quality of life of CPSP patients. Futhermore, East pain treatment in combination with West pain treatment may be useful modality to alleviate CPSP.
시간영역에서의 유한차분법을 이용한 접합형 서큘레이터 해석
김동현,양두영 濟州大學校 工科大學 産業技術硏究所 1997 尖端技術硏究所論文集 Vol.8 No.2
A junction circulator consists of three transmission lines, connected through suitable matching networks to a magnetized ferrite resonator having three-fold symmetry. In this paper. a finite difference time domain(FDTD) method is applied to the electromagnetic wave analysis of circulator operating at 880㎒. This method is shown to be an efficient method for modeling complicated junction circulator components. The electromagnetic field components are calculated and discussed. We simulate the electric field distribution in inner circulator. The results of the FDTD method is compared with those of mode matching method and shown to be in good agreement.
김동현,서수덕,양두영 濟州大學校 工科大學 産業技術硏究所 1997 尖端技術硏究所論文集 Vol.8 No.2
In this paper, we present a polarizer that consists of three step rotary detents which can selectively convert linear polarization into circular polarization and vice versa. For the design of the polarizer, the transmission line theory is applied to design the waveguide mode transducer for the modes to be smoothly converted between rectangular and circular waveguide. A dielectric plate is inserted in circular waveguide for the conversion of a polarized wave with the angle of an inserted dielectric plate. Also, we simulated to obtain the optimum values of the transmission and the reflection coefficient characteristics at input and output port.
김동현,양두영 濟州大學校 産業技術硏究所 1997 산업기술연구소논문집 Vol.8 No.1
In this paper. we analyze a junction-circulator used in RF system of mobile communications and find out ferrite medium which is playing a important role of circulator. Also we presented the electromagnetic field of circulator inside based on modal analysis method. Input impedance and scattering parameter of circulator are searched by x/μ value which is decided the resonanent frequency and bandwidth. We designed the junction-circulator for 880㎒ and fabricated it. The experimental data for the designed circulator in 880㎒ frequency range agree well with the designed data.
이두형,조성덕,양문호,장충현,박재훈 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.3
Clinicopathologic analysis of ameloblastoma in 24 cases and their ultrastructural and immunohistochemical studies, especially to cytokeratin expressions according to morphologic classification were performed to clarify the tumor cell differentiation and origin. Reaction with broad spectrum and high molecular weight cytokeratin were generally positive in the stellate cell of the follicular and acanthomatous ameloblastoma, suggesting more squamous differentiation than peripheral basal cell type. Although ultrastructually common origin from oral epithelium was evidenced by presence of tonofilaments and desmosome, variations were prominent among the different histopathologic types of tumor. In granular cell ameloblastoma there were pleomorphic osmiophilic lysosome-like granules.