• Title/Summary/Keyword: 선양

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국립공원 편의시설 태부족

  • O, Pan-Yong
    • 공원문화
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    • s.39.40
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    • pp.58-59
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    • 1988
  • 국.도.군립 등 자연공원의 보호와 이용에 대한 도하각신문 기사의 초점은 모든 개발도상국들이 겪듯이 보호보다 이용.개발쪽에 시각을 높혀 지역민의 경제발전과 연계하려는 경향이 짙다. 더욱이 보호의식의 희박으로 환경오염의 심각성은 폭주하는 이용객과 정비례하는 적신호를 울리고 있어 보호의식의 선양이 초급하다. 참고로 최근 각신문(전문지 포함)에 비친 국립공원 등 자연공원에 관한 기사의 제목만이라도 엮어 매스콤의 초점을 살펴 연구자료로 삼고저 한다.

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Two Cases of Adenoid Cystic Carcinoma of Trachea (기관내 선양낭성암종 2예)

  • Yum, Ho-Kee;Ahan, Jin-Chul;Song, Yeong-Soo;Kim, Joo-In;Yoon, Hye-Kyoung;Jeon, Woo-Ki;Choi, Soo-Jeon;Lee, Bong-Choon
    • Tuberculosis and Respiratory Diseases
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    • v.42 no.3
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    • pp.387-393
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    • 1995
  • Adenoid cystic carcinoma formerly called cylindroma is rare tracheal tumor. Characteristics of adenoid cystic carcinoma are infiltrative nature with local recurrence tendency and long natural course of the disease. Adenoid cystic carcinomas develop most commonly in the trachea. Primary resection and end-to-end anastomosis of the involved airway are treatment of choice. And postoperative radiation therapy might be useful, particularly when the surgical margins are not ample. We report two cases of adenoid cystic carcinoma of trachea diagnosed by flow-volume curve.

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A Resected Solitary Pulmonary Metastasis 9 Years after the Removal of Submandibular Adenoid Cystic Carcinoma - A case report - (턱밑샘 선양낭성암종 제거 9년후 발생한 폐전이 결절 절제술 - 1예 보고 -)

  • Seo, Min-Bum;Lee, Seog-Ki;Lim, Sung-Chul
    • Journal of Chest Surgery
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    • v.43 no.3
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    • pp.320-323
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    • 2010
  • Adenoid cystic carcinoma is a relatively rare tumor that usually arises in the parotid and submandibular salivary glands. The initial management is surgical, and this is often combined with post-operative radiotherapy, but local relapse is common and distant metastasis is not infrequent. We experienced the case of a 59 years old male who had been previously operated on for a primary submandibular salivary cyst, and he then had a distant pulmonary metastasis 9 years later. We operated on him with performing a wedge resection on the left lower lobe for the metastatic lesion, and he hasn't had any evidence of tumor recurrence for 84 months after the second operation.

Pre-quantized Image Compression using Wavelet Transform (선 양자화법에 의한 웨이블릿 영상압축)

  • Piao, Yongri;Kim, Seok-Tae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • v.9 no.1
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    • pp.405-408
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    • 2005
  • This paper proposed the method to images of losses using restorable wavelet transformation. The algorithm proposed in this work stars by processing the pre-quantizer on the original images to organize an image that matches the gray level. The wavelet transformation filter to the original image which is already pre-quantized in order to segment bands. Considering the lowest coding of bands influencing the most to the overall condition of the reconstructed image, it only uses the Huffman coding using prediction. Reconstructed images by proposed algorithm showed higher PSNR when coding images of JPEG or non pre-quantized images. Applying pre-quantizer can control the peak errors and is expected to be useful at mass image compression.

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The Role of Radiation Therapy in the Treatment of Adenoid Cystic Carcinoma of the Head and Neck (두경부에 생긴 선양 낭포암의 치료에 있어서 방사선치료의 역할)

  • Kim, Won-Dong;Park, Charn-Ii;Kim, Kwang-Hyun
    • Radiation Oncology Journal
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    • v.10 no.1
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    • pp.35-41
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    • 1992
  • Forty eight patients with adenoid cystic carcinoma (ACC) in the head and neck treated between 1979 and 1990 were reviewed according to treatment modalities and clinical courses. The common site of origin was minor salivary gland ($69\%$), mostly hard palate and maxillary sinus. 11 patients received radiation therapy (RT) alone and 37 patients received combined surgery and radiation therapy. The follow-up period of the survivors ranged from 4 to 118 months (median 49.5 months). The 5 year local control rate was $69.3\%$, $67.3\%$ and 83.9$\%$ in RT alone, conservative operation (OP)+RT and radical OP+RT group, respectively (p>0.05). The control of local disease was best achieved with radical OP+RT. In postoperative RT, high dose ($\ge$60 Gy) and generous field size($\ge$64 cm$^2$) yielded a better local control rate. Actuarial overall survival rate was $79.0\%$, at 5 years and $19.2\%$ at 10 years. Distant metastases (DM) developed in $40\%$ of patients, mostly in the lung. Disease-free (NED) survival rate was $45.8\%$ at 5 years and significant differences did not exist according to primary sites and treatment options. Survival rate after the onset of DM was $19.5\%$ at 5 years. Occurrence of DM tends to lower survival significantly. In an effort to find the role of RT in the treatment of ACC, our data suggest that a well-planned postoperative RT employing a high dose and generous field size can produce high local control rate and remaining urgent problem of distant metastasis demands more effective chemotherapy for the purpose of improving survival of ACC patients.

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