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CRT용 電子銃의 制御電極 口徑 및 電極間隔 이 빔 스포트 크기에 미치는 影響
李茂永,楊英根,金南虎 嶺南大學校 工業技術硏究所 1991 연구보고 Vol.19 No.1
In the electron gun of a CRT, the physical construction of beam forming region exhibts vital effect on the size of beam spot. In this paper, the characteristics of beam size, which is a function of aperture diameter of grid G₁and gap distance G₂ and G₃, are presented based on a series of experiments conducted by the author on the 12 inch monchrom CRTs. It has been confirmed that the smaller aperture of G₁ with the lower beam current generally assures the sharper beam spot and that the optimal combination for obtaining the smallest beam spot size on the screen is 0.35mm aperture on G₁ and 0.30mm gap between G₂ and G₃, if all other conditions remain unchanged.
주기산,임현성,김미자,양태영,허경,김완중,박유환,정춘해 朝鮮大學校 附設 醫學硏究所 1993 The Medical Journal of Chosun University Vol.18 No.1
Essential thrombocythemia is a chronic myeloproliferative disorder of unknown origin, charcterized by excessive number of morphologically and functionally abnormal platelet in peripheral blood and abnormal proliferation of megakaryocytes in bone marrow. Its main clinical manifestations are hemorrhages and thromboses. The aim of therapy is suppression of the excessive bone marrow activity, which can be achieved by radioactive phosphorus, alkylating agent, hydroxyurea and interferon. Two cases were diagnosed at our hospital which had laboratory and clinical features compatible with this disease. We have successfully treated patient with hydroxyurea and platelet antiaggregating agent.
The Buccofacial Wall of Maxillary Sinus: An Anatomical Consideration for Sinus Augmentation
Yang, Hun-Mu,Kyong Bae, Hanna Eun,Won, Sung-Yoon,Hu, Kyung-Seok,Song, Woo-Chul,Paik, Doo-Jin,Kim, Hee-Jin Wiley (Blackwell Publishing) 2009 Clinical Implant Dentistry and Related Research Vol. No.
<P>PURPOSE: This study aimed to quantify the thickness of the buccofacial wall of the maxillary sinus where sinus augmentations are often performed. MATERIALS AND METHODS: Fourteen sites located 15 and 20 mm superior to the anatomical cervical line (named as groups H15 and H20, respectively) and along the long axes of the mid and the interproximal of two premolars and two molars were measured from 74 Korean hemiface cadavers. RESULTS: The buccofacial wall of the maxillary sinus was thinnest at the area between the maxillary second premolar and first molar in groups H15 and H20. The lowest mean thickness was 1.2 mm in both groups. The walls were thicker in males than in females, with statistically significant gender differences found at four and two sites on the anterior horizontal reference in groups H15 and H20, respectively. However, the thickness did not differ significantly with age or laterality. Incomplete septa were found in seven of the 74 specimens, and they were present in the area between the first and second molars in six (86%) of these cases. CONCLUSIONS: These observations indicate that anatomical characteristics of the buccofacial wall thickness of the maxillary sinus need to be considered when performing a window opening procedure for sinus augmentation.</P>
Mu-Li Yang 서울대학교 교육연구소 2010 Asia Pacific Education Review Vol.11 No.2
This countrywide study was conducted to determine what organizational and individual factors have a significant impact on the performance of public relations (PR) practice in higher educational institutions in Taiwan. In this study, a purposive sampling of 600 administrative staff whose jobs involved university PR was employed, and 301 effective questionnaires were recruited, yielding a 50% valid rate. Thirteen organizational and five individual factors were retrieved from the researcher's prior qualitative research on the university PR practice to examine the PR performance in this study. Through a stepwise regression analysis, the findings indicated four organizational factors and one individual factor were significantly predictive of the performance of educational PR practice at the .05 and .001 levels. Further, organizational factors were found as having a greater influence than individual factors on the educational PR performance in this study.
Yang, Hun-Mu,Woo, Yong-Je,Won, Sung-Yoon,Kim, Da-Hye,Hu, Kyung-Seok,Kim, Hee-Jin Mutaz B. Habal, MD 2009 JOURNAL OF CRANIOFACIAL SURGERY - Vol.20 No.5
The aim of this study was to elucidate the sublingual and intralingual courses of the lingual nerve (LN) in the ventral tongue region, providing a clinical guide for safe surgical procedures such as frenectomy. We evaluated 16 specimens (32 sides) by gross observation after detailed dissections, and a further 6 specimens were examined after Sihler staining. All specimens were harvested from embalmed Korean cadavers. We classified the innervation patterns of the LN into 5 types and confirmed the distribution of the LN in the tip of the tongue. The classification of the LN was made with reference to a line formed by the interlacing of the styloglossus and genioglossus muscles. Based on the course of LN and the presence of a tiny twig (twigs directly innervating the ventral mucosa of the tongue, TM) directly innervating the sublingual mucosa, the course of the LN was classified as being straight, curved, or vertical and with or without the TM. Straight, curved, and vertical courses without the TM were seen in 9.4%, 46.9%, and 18.8% of the cases, respectively. Straight and curved courses with the TM were observed in 6.3% and 18.8% of the cases, respectively. Sihler staining revealed that the tongue tip is innervated by the LN. These findings indicate that surgical manipulations at the ventral tongue region might damage the LN and result in numbness of the tongue tip, and provide a useful anatomic reference for various surgical procedures involving the ventral tongue region.
Yang Mu Xiao,Yang Xiao Bin 한국중국산문학회 2013 중국산문연구집간 Vol.3 No.-
홰나무를 소재로 한 변문은 위진시기 문인들에게 상당한 인기를 끌었으며 역대로 더욱 발전양상을 띄어 구식, 결구, 장법, 수사 등 여러 분야가 날로 성숙되었다. 홰나무에 대한 상징을 사용하는 일과 그 문화적 내함은 점차로 확립되어 당시의 심미관을 선명하게 체현하였다. 위진시기 홰나무 소재 변문 중 홰 나무 상징의 사용은 대략 세 가지 종류가 있다. 大槐安國(한 사람이 홰나무 밑에서 낮잠을 자다가 꿈에 대괴안국 왕의 사위가 되어 南柯郡을 20년 동안 다스리면서 부귀영화를 누리다가 꿈을 깨었다는 내용)의 정치적 우의, 槐社安民의 심리적 기탁, 그리고 槐仙之道의 현학적 함의이다. 일종의 상징 부호로서 홰나무는 위진시기에는 더 이상 자연지물에 대한 묘사는 아니었다. 부단한 전습과 변화로 다양한 측면의 인문 내함을 부여받게 되었고 농후한 역사적 연속성을 띄게 된 것이다.