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      • KCI등재

        악골에 발생한 낭종의 임상적 연구

        김경욱,김경욱,이재훈,Kim, Kyung-Wook,Kim, Kyung-Wook,Lee, Jae-Hoon 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.2

        A clinical study of selected patients with cyst which were managed in the Department of oral and maxillofacial sugery from March 1994 to February 1998 was done. An following results were obtained 1. Male were involved more than females by cyst in a ratio of 1.95:1 and most of the cases occurred in the secondary decades 2. The primary site of radicular cysts were the anterior incisor area, dentigerous cysts were anterior incisor area and canine area, incisive canal cysts were maxillary anterior area, odontogenic keratocyst were the mandibular ramus area. 3. The common symptoms were swelling(65 cases), pain(12 cases) and the mean duration of syptomatic period was 10 days. 4. The rates of histopathologic classification were radicular cyst(58%), dentigerous cyst(22%), incisive canal cyst(9%), odontogenic keratocyst(11%). 5. Average of Alk. phosphatase was 235(IU/L) at pre-twenty age and 102(IU/L) at post-twenty age. 6. In treatment modalities, enucleation was most common, odontogenic keratocyst was treated by enucleation and curettage for prevention of recurrence.

      • KCI등재

        Suncus Murinus 간장의 미세구조적 관찰

        김경욱,신영철,Kim, Kyoung-Wook,Shin, Young-Chul 한국현미경학회 1993 Applied microscopy Vol.23 No.2

        본 연구에서는 반수서동물인 Suncus Murinus간실질의 구조와 간소엽에 존재하는 간실질세포, 동모양내피 세포, Kupffer세포 및 Ito세포의 미세구조를 관찰하고 이들의 특징을 포유동물 및 비포유동물의 것들과 비교 고찰하였다. 간실질세포는 지방소적과 비교적 큰 사립체를 많이 함유하고 있었으며 세포간격은 좁았으나 세포 표면은 가늘고 긴 돌기를 많이 갖고 있어 그 미세구조가 비포유동물의 일부 동물종에 유사한 소견을 나타냈다. 내피세포 또한 일부 비포유동물에 있어서와 같이 용해소체를 많이 함유하고 있어 Kupffer세포와의 식별이 어려웠다. 간소엽에는 담세관이 많았으며 일부 담세관과 담관은 Disse강에서 관찰되었는데 이러한 담관계는 Disse강에 있는 소세포와 간실질세포에 의해서 형성되어있거나 소세포들이 내강을 둘러 싸면서 형성하고 있었다. 담관계형성에 관여하는 소세포들은 지방소적을 함유하거나 함유하지 않은 Ito세포일 것으로 추정되었다. 이상의 소견으로 미루어 Suncus Murinus간장은 포유동물과 비포유동물의 구조와 미세구조를 동시에 갖추고 있는 것같이 보인다. This study was designed to observe the ultrastructural characteristics of hepatocytes, endothelial cells, Kupffer cells and Ito cells in the liver of Suncus Murinus. The specimens were processed for electron microscopy, following the immersing in the Karnovsky fixative for 8 hrs and 1% osmium tetroxide for 2 hrs. Hepatocytes contained large number of lipid droplets and large mitochondria. Spaces between the hepatocytes were narrow and in some area were irregular in contours with long and slender microvilli of the hepatocytes. Endothelial cells may contain lysosomes as Kupffer cells do. Bile canaliculi were relatively wide and easily seen in the lobule. Bile ductules located in the space of Disse were formed by the hepatocytes and small cells with or without lipid droplets. The results suggest that the Suncus Murinus liver shows some ultrastructural characteristics of aquatic animal livers, endothelial and Kupffer cells may be the same one only in the different functional states, and the bile ductule may be partly formed by the Ito cell.

      • KCI등재

        Laser Cladding 공정으로 제조된 Tribaloy T-800 코팅 소재의 미세조직 및 용융 Al 침식 특성

        김경욱,함기수,박순홍,이기안,Kim, Kyoung-Wook,Ham, Gi-Su,Park, Sun-Hong,Lee, Kee-Ahn 한국분말야금학회 2020 한국분말재료학회지 (KPMI) Vol.27 No.3

        A T-800 (Co-Mo-Cr) coating material is fabricated using Co-Mo-Cr powder feedstock and laser cladding. The microstructure and melted Al erosion properties of the laser-cladded T-800 coating material are investigated. The Al erosion properties of the HVOF-sprayed MoB-CoCr and bulk T-800 material are also examined and compared with the laser-cladded T-800 coating material. Co and lave phases (Co<sub>2</sub>MoCr and Co<sub>3</sub>Mo<sub>2</sub>Si) are detected in both the laser-cladded T-800 coating and the bulk T-800 materials. However, the sizes of the lave phases are measured as 7.9 ㎛ and 60.6 ㎛ for the laser-cladded and bulk T-800 materials, respectively. After the Al erosion tests, the erosion layer thicknesses of the three materials are measured as 91.50 ㎛ (HVOF MoB-CoCr coating), 204.83 ㎛ (laser cladded T-800), and 226.33 ㎛ (bulk T-800). In the HVOF MoB-CoCr coating material, coarse cracks and delamination of the coating layer are observed. On the other hand, no cracks or local delamination of the coating layer are detected in the laser T-800 material even after the Al erosion test. Based on the above results, the authors discuss the appropriate material and process that could replace conventional bulk T-800 materials used as molten Al pots.

      • KCI등재후보

        anregen, aufregen, erregen의 의미차이

        김경욱,Kim Gyung-Uk 한국독어학회 2003 독어학 Vol.7 No.-

        Die Hedeutungen von drei Verben anregen, aufregen, erregen werden durch '흥분시키다' ohne Unterschied im Deutsch-Koreanisch $W\"{o}rterbuch{\;}erkl\"{a}rt$. Aber sie haben verschiedene Bedeutungen, was man durch einen Vergleich der Valenz feststellen kann und durch eine verschiedene $Bedeutungserkl\"{a}rung$ zu unterscheiden versuchen sollte. Die drei Verben haben die Argumentenkombination 'Origo + $Vorgangstr\"{a}ger$' gemeinsam. Aber erregen muss noch in 2 Sememe eingeteilt werden: erregen 1. '무엇이 누구를 아주 화나게 하거나, 아주 신경질적으로 만들다'(불유쾌한 홍분상태에 빠뜨리다) erregen 2. '무엇이 누구를 성적으로 또는 기쁘게 흥분시키다'(즐거운 흥분상태에 빠뜨리다) erregen 2. muss wiederum in 2 Eedeutungsvarianten aufgeteilt werden: erregen 2.1. '성적인 흥분상태에 빠뜨리다' erregen 2.2. '성적인 흥분은 아니지만, 기쁜 흥분상태에 빠뜨리다' erregen 2.1. und erregen 2.2. werden voneinander unterschieden durch die verschiedene semantische Klasse der $Mominativerg\"{a}nzung$: 'Sexueller Anblick' erscheint fur die semantische Klasse der $Nominativerg\"{a}nzung$ von erregen 2.1.. 'Musik' erscheint fur die semantische Klasse der $Nominativerg\"{a}inzung$ von erregen 2.2.. erregen 1. und aufregen mit negativer Konnotation werden synonymisch verwendet: erregen 1. '무엇이 누구를 아주 화나게 하거나, 아주 신경질적으로 만들다'(불유쾌한 흥분상태에 빠뜨리다) aufregen '무엇이 누구를 아주 화나게 하거나, 아주 신경질적으로 만들다'(불유쾌한 흥분상태에 빠뜨리다) Aber die semantische Klasse $f\"{u}r$ die $Akkusativerg\"{a}nzung$ scheint anders zu sein: 'Mensch odor das $Gem\"{u}t$ eines Menschen' $k\"{o}nnen$ erscheinen $f\"{u}r$ die $Akkusativerg\"{a}nzung$ von erregen 1., $w\"{a}hrend$ nur 'Mensch' $f\"{u}r$ die $Akkusativerg\"{a}nzung$ von aufregen erscheint. Man sollte die Bedeutung und die syntaktische Valenz von anregen anders $erkl\"{a}ren$, je nachdem ein Mensch odor eine $T\"{a}tigkeit$ des $Menschenk\"{o}rpers$ als $Akkusativerg\"{a}nzung$ auftritt: j-n : Kaffee regt(mic) an. '커피가 나를 흥분시키다' Absraktum : das Medikament regt die Verdauung an '약이 소화를 자극하다/촉진하다/북돋우다' Die $Akkusativerg\"{a}nzung$ mit der semantischen Klasse 'Mensch' ist fakultativ weglassbar, $w\"{a}hrend$ sie mit dem Klassem $'T\"{a}tigkeit{\;}des{\;}Menschenk\"{o}rpers'$ obligatorisch ist.

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