http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이강운 (검색결과 76 건)
- 무료
- 기관 내 무료
- 유료
-
이강운,이철우,한수부,Lee, Kang-Woon,Lee, Chel-Woo,Han, Soo-Boo 대한치주과학회 1999 Journal of Periodontal & Implant Science Vol.29 No.1
The purpose of this study was to observe histopathologically the influence of advanced periodontitis on pulp tissue, and to conclude the correlation between the results with clinical manifestations. The samples were teeth with over 7mm pocket depth and over 50% radiographic bone loss. These were diagnosed to have very poor prognosis and thus planned to be extracted. Those with any of following conditions were excluded from the samples, loss of vitality, periapical pathology, restoration or prosthesis, dental caries, and attrition or abrasion. It was because these conditions could affect pulp without any correlation with periodontal disease. For the experiment, 17 teeth from 11 patients were selected. Average age of patient was 47. Each tooth was examined for following categoris; pocket depth, gingival recession, electric pulp test, mobility, percussion test, sensitivity test. The extracted teeth were fixed buffered neutral formalin solution. It was decalcified using 4% nitric acid. Sliced histological samples observed using light microscope, for pulp status, and severeity of inflammation. 4 samples were excluded due to histologic sample discrepency. Thus 13 samples were subject to observation. 4 showed normal conditions. Focal reversable pulpitis was shown in 5 samples. Chronic pulpitis was observed 1 sample. Pulpal abscess was observed in 3 samples.
-
-
-
Pt 상부 전극 증착온도가 PZR 박막의 전지적 특성에 미치는 영향
이강운,이원종,Lee, Kang-Woon,Lee, Won-Jong 한국재료학회 1998 한국재료학회지 Vol.8 No.11
The effects of deposition temperature of Pt top electrodes on the electrical properties of Pb(Zr,Ti))$O_3$, (PZT) thin film were investigated. When the Pt top electrodes were deposited at substrate temperatures of $200^{\circ}C$ or above,the ferroelectric properties of the PZT thin film under the Pt electrode were severely degraded. Whereas those of the PZT film where the Pt electrodes were not deposited were not degraded. Water vapors which remained in the vacuum chamber were dissociated into hydrogen atoms by the catalysis of Pt top electrode, and those hydrogen atoms diffused into the PZT film and produced oxygen vacancies at high substrate temperature, resulting in the degradation of the ferroelectric properties of the PZT film located under the Pt electrode. Since the water vapors could not be dissociated into hydrogen atoms without the catalysis of Pt. the degradation of the PZT film did not take place where the Pt electrode were not deposited. The degraded feroelectric properties could be recovered by rapid thermal annealing (RTA) treatment. On the other hand. leakage current characteristics were improved with increasing the deposition temperature of Pt top electrodes.
-
이강운,이동재,안정준 한국응용곤충학회 2014 Journal of Asia-Pacific Entomology Vol.17 No.3
The developmental time and survival of overwintering Sericinus montela Gray pupae were studied at four constanttemperatures (15.0, 20.0, 25.0, and 30.0 °C), 40 ± 10% relative humidity, and 10:14 h light:dark cycle. The developmental time of both sexes decreased with increasing temperature between 15.0 °C (70.18 days forfemales and 55.28 days for males) and 30.0 °C (19.60 days for females and 13.78 days for males). The developmentperiods of femaleswere longer than those ofmales at each constant temperature. The relationship betweenthe developmental rate and temperature was fitted by a linear model and a nonlinear developmental rate model(Lactin 1). The mortality of overwintered S. montela pupae was lowest at 25.0 °C (16.7%) and highest at 15.0 °C(36.7%). The lower developmental thresholds were 12.38 and 12.16 °C for females and males, respectively. Thedistribution of development completion for females and maleswas described by the two-parameterWeibull distributionequation (r2=0.87 for females and r2=0.94 for males). The date for the cumulative 50% adult emergencewas within one or two days of that predicted using the Lactin 1 model. The temperature-dependentdevelopmental model for S. montela could be applied to predict the timing of spring emergence in differentgeographical locations and will be helpful in developing a full-cycle phenology model for S. montela.
-
-
급성 경막외 출혈을 동반한 원발성 간세포암의 경막 및 두개골 전이 : 증례보고 A Case Report
이강운,정동섭,허필우,홍용길,나형균,강준기 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.8
Intracranial metastases of hepatocellular carcinoma have been rarely reported, even in the Orient and Africa where this carcinoma is one of the relatively common malignancies. Hepatocellular carcinomas usually spread to regional lymph nodes around the porta hepatis via lymphatics. But venous metastases of this carcinoma can occur via intrahepatic vein. The lungs are the most common distant metastatic sites followed by stomach, bones. and adrenals. Recently, we experienced a case of intracranial metastasis of hepatocellular carcinoma associated with epidural hematoma. Although the epidural hematoma and the metastatic tumor mass were totally removed, the patient died of liver complications on the 9th day of postoperative care. The clinical and radiological details of this case are presented here with a brief review of the literature.
-
-
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
