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젊은 남자에게 발생한 통상성 간질성 폐렴과 동반된 폐암 1예
박종숙,이준혁,박성우,장안수,박춘식,박재성,백상현,고은석,신화균 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Usual interstitial pneumonia(UIP) is relatively rare disease of lung parenchyme under the age of 50. Lung cancer is reported to occur as a complication of UIP, but has not been reported in young age patient with UIP in Korea. A 35-year-old man was admitted to the hospital because of dyspnea, cough and mild fever. He had been suffered from dyspnea during 3 years. The dyspnea worsened recent 1 month ago. He had been treated with pneumonia at another hospital during 4 months before this admission. Chest radiographs and High resolution CT showed subpleural and basal dominant reticular opacities in both lung with no change until now. He was smoker and his occupation was car engine-man dealing with benzene. UIP is suspected by history and radiologic findings. Operation for open lung biopsy was performed to obtain lung specimen via video-assisted thoracoscopic surgery. Patient's pathologic examination showed UIP combined with adenocarcinoma in RLL superior segment and posterobasal segment and RLL lobectomy was done. After operation, the patient has been in cancer free condition so far. We report a case of UIP combined with lung cancer in young man with brief review of the literature.
이상윤,라병욱,박동수,황인헌,이덕동,신영남,박성배,이동욱,박용석,박형근,손상호,권태근,채경락,정경득 慶北大學校 自然科學大學 1986 自然科學論文集 Vol.4 No.-
An Ac-type Plasma Display Panel (PDP) operating with Ne-Ar(0.1%) Penning mixture gas is fabicated. The characterics of the panel with electrodes covered with thin and thick dielectric layers are studied. The brightness of the Neon-orange light emitted by the panel measured as function of applied voltage and frequency. As an application, a graphic display system equipped with PDP showing still and moving pictures is made.
박점근,김상부 國立 昌原大學校 產業技術硏究院 2004 産技硏論文集 Vol.18 No.-
Six Sigma, a powerful management strategy focused on customer satisfaction, has been widely adopted in Korean companies since 1996. The effectiveness of Six Sigma is already proven in many large companies. It is, however, still difficult for small and medium sized companies to implement it. In this paper, a Six Sigma model for a small and medium sized company is considered. We suggest six factors for a successful implementation of Six Sigma in a small and medium sized company. Those success factor consist of management leadership, Six Sigma organization and belt system, education and training, recognition and reward system, process improvement roadmap, and the selection of right project. A case study of HSD engine's Six Sigma is also considered.
박희서,손화영,정성목,송근호,조종기,이영원,신상태,김명철,김덕환,박성준 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-
An eleven year old castrated male Maltese was presented to the Veterinary Medical Teaching Hospital of Chungnam National University. In physical examination, approximately 0.5 cm round mass was observed on tail base. This small elevated mass has also shown alopecic and firm configuration. It was differentially diagnosed as sebaceous adenoma and hyperplasia by fine needle aspiration. After surgical removal, the sample was diagnosed as sebaceous hyperplasia by histopathological examination. It has not yet shown any signs of recurrence and prognosis has teen good.
박상근 忠州大學校 2005 한국교통대학교 논문집 Vol.40 No.2
This paper proposes a generalized NURBS model, called Volumetric NURBS or VNURBS for representing volumetric objects with multiple attributes embedded in multidimensional space. This model provides a mathematical framework for modeling complex structure of heterogeneous objects and analyzing inside of objects to discober features that are directly inaccessible, for deeper understanding of complex field configurations, The defining procedure of VNURBS, which explains two directional extensions of NURBS, show VNURBS is a generalized volume function not depending on the domain and its range dimensionality, And the recursive algorithm for VNURBS derivatives is described as a computational basis for efficient and rebust volume modeling. In addition, the specialized versions of VNURBS demonstrate that VNURBS is applicable to various applications such as geometric modeling, volume rendering, and physical field modeling.
박상정,송정근,홍창희 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1
A novel semiconductor device called a MQW-IMD(Multi Quantum Well Injection Mode Device) is designed for the hardware implenentation of electronic pulse mode neural network. As the operation is analogous to biological neuron, the device can be used as basic PE(Processing Element) of artificial neural system. The neural trigger circuit consists of a MQW-IMD and paralled RC load. For the optimization of the trigger circuit, The electron energy accelerated in AlxGa₁- xAS/GaAs barrier was calculated Ensemble Monte Carlo method in according with the electric field for A1 mole fraction, x=0.4 In the consideration of electron temperature and average ionization rate as well as ionization cross section, we extracted the improved relationship between the pulse frequency and the input voltage.