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프리스트레스트 콘크리트 Beam 교량의 콘크리트 강도 평가를 위한 비파괴 검사
한경봉 ( Han Kyoung-bong ),천영덕 ( Chun Young-duk ),박선규 ( Park Sun-kyu ),이성희 ( Lee Sung-heu ) 한국구조물진단유지관리공학회 1998 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.2 No.2
Due to the heterogeneous nature of a concrete, periodic inspections are compulsory to maintenance of quality of concrete structures. The major object of this study is to analyze and investigate experimentally the experimental equation for the estimate of compressive strength of prestressed concrete. In this study, surface hardness method, ultrasonic method are investigated to evaluate strength of concrete specimens. Specimens are cast in laboratory and cores are cut from specimens in order to estimate the accurate strength. These values are used to compare with calculated values from test data. The result shows that the proposed equation can reproduce the results at prestressed concrete beam girders more appropriately than previous equations.
대퇴직근 기능성 유리 피판술을 위한 신경 및 혈관에 대한 해부학적 고찰
한경진,이영길,김준용,한승환,이두형,조재호,Han, Kyoung-Jin,Lee, Young-Kil,Kim, Joon-Yong,Han, Seung-Hwan,Lee, Du-Hyoung,Cho, Jae-Ho 대한미세수술학회 2007 Archives of reconstructive microsurgery Vol.16 No.1
The purpose of this article to evaluate the availability of the rectus femoris flap in Korean subjects. Material and Methods is that Cadaveric dissections were done on 51 femoral triangles of 26 cadevers. We measured the length of the direct head of rectus femoris from anterior superior iliac spine to patella upper pole, ASIS to lateral border of femoral nerve, and entry point of femoral nerve and vessel branches to rectus. Usually, there were three terminal branches to rectus femoris from the femoral nerve. The entry point of the first branch was at the proximal $17.5{\sim}31.4%$ portion of the rectus femoris. The second and the third branch entered at the proximal $22.5{\sim}40.7%$ and $26.3{\sim}42.3%$, respectively. The vessel entry was at $20.2{\sim}37.3%$. The length from ASIS to femoral nerve was $3.5{\sim}8.5\;cm$. Among the 51 rectus femoris muscles, 44 had one nutrient artery, and 7 had 2 nutrient arteries. The nutrient artery originated from the descending branch of the lateral femoral circumflex artery in 18(40.9%) cases, directly from the lateral femoral circumflex artery in 8(18.0%) cases, and from proximal(6 cases, 13.6%) and distal(12 cases, 27.3%) portion of the deep femoral artery. The average length of the nutrient artery was 29.8 mm and the width was 2.14 mm. The point where it meets the main feeding artery of the rectus femoris was $9.0{\sim}15.0\;cm$ from the ASIS. In all cases, the main artery's entrance was proximal to the first nerve branch. Conclusion is that rectus femoris has available data for functional flap.
한경호(Kyoung-Ho Han),장용이(Yong-Lee Jang),최진숙(Jin-Sook Choi),한우상(Woo-Sang Han) 한국중독정신의학회 2009 중독정신의학 Vol.13 No.2
Objectives:We investigated the relationship between smoking and quality of life in patients with schizophrenia. Methods: One hundred stable outpatients with schizophrenia according to the DSM-IV-TR criteria were included. The KmSWN was used for evaluating the subjective quality of life while the K-QOLS was used to assess the objective quality of life. The psychopathology of each patient was assessed by the PANSS. The K-PSP was used for evaluating social function. The severity of ni-cotine dependence in smokers was evaluated with the K-FTND. For statistical analysis, t-test, multivariate analysis (MANCOVA), correlation analysis were conducted. Results:Quality of life of the smokers had significant lower scores in physical and mental functioning factor in KmSWN and had tendency of lower total score in total KmSWN. The total score and three subscale score in K-QOLS were lower in smokers than nonsmokers but there were no differences after MANCOVA. There was significantly correlated between K-FTND and dissatisfaction factor in Km-SWN. K-PSP and K-QOLS were positively correlated. Conclusion:These results suggested that smokers with schizophrenia have lower quality of life both subjectively and objectively. The increased smoking severity is associated with the poor subjective quality of life. These results suggest that attention and intervention for smoking is an important part of treatment for patients with schizophrenia in order to improve their quality of life.