http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
고강도 콘크리트를 사용한 철근콘크리트 보의 전단 거동에 관한 실험적 연구
김창희,고봉수,은희창,서일교 제주대학교 공과대학 첨단기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.2
The shear capacity of reinforced concrete beam depends on the strength of concrete, the amount and strength of shear reinforcement bars, the support conditions of end points etc. These factors makes the shear behavior or capacity of reinforced concrete beam be complicated. For the purpose of grasping the shear behavior and capacity of reinforced concrete beams, sixteen specimens were tested. Most of specimens showed the shear failure along with the yielding of longitudinal bars or crushing of compressive concrete. The effects on each of test variables were related to the shear capacity of reinforced concrete beams. And, the comparison of the test results and ACI code showed the reasonable agreement.
김병호,은희창,서일교 제주대학교 산업기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.1
The objective of this study is to present a design method of over-reinforced concrete beam confined by shear reinforcements. Fourteen reinforced concrete beams were tested with the variables of the amount of longitudinal bars, the spacing of shear reinforcements, and the shear-span ratio. It was observed that the confinement of core concrete by shear reinforcements led to the enhanced flexural capacity and ductility. Comparing the experimental and analytical results and grasping the confinement effects of shear reinforcements, this paper illustrated the validity of designing over-reinforced concrete beam.
김병호,은희창,서일교 濟州大學校 産業技術硏究所 2001 산업기술연구소논문집 Vol.12 No.1
The objective of this study is to present a design method of over-reinforced concrete beam confined by shear reinforcements. Fourteen reinforced concrete beams were tested with the variables of the amount of longitudinal bars. the spacing of shear reinforcements. and the shear-span ratio. It was observed that the confinement of core concrete by shear reinforcements led to the enhanced flexural capacity and ductility. Comparing the experimental and analytical results and grasping the confinement effects of shear reinforcements. this paper illustrated the validity of designing over-reinforced concrete beam.
도시홍,이우교,오문영,정용조,강갑중,김도성,김완,강희동 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
CsI(Ag) single crystals doped with 0.001, 0.003 and 0.005 mole % silver as activator were grown using the Czochralski method. The gamma ray energy spectrum is measured by the CsI(Ag) single crystals coupled to photomultiflier tube. It was confirmed that the crystal structure of grown CsI(Ag) was bcc, and that its lattice constant was 4.568Å. The energy resolution of CsI(Ag) for Cs-137 gamma ray was maximum when CsI(Ag) was doped 0.003 mole % silver, and its value was 9.84% the pulse height from the scintillation detector system using the CsI(Ag) single crystals was linear to gamma ray energy.
고유신,기진호,김병호,은희창,서일교 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.2
Shear reinforcement has an important role to strengthen shear capacity of reinforced concrete beam. Although the flexural design corresponding to design code does not consider the effects of the shear reinforcement, its utilization in flexural region leads to the improved ductility and the enhanced strength by confining concrete. It allows to design the over-reinforcement beam. In this study, we considered the effects of the shear reinforcement on the flexural ductility and strength of reinforced concrete beam according to the spacing of shear reinforcement, steel ratio, and shear span ratio. The flexural capacity depends on the amount of longitudinal bars and the ductility the confinement degree by the shear reinforcement. The flexural analysis varies with the stress-strain relation of confined concrete. The analytical results based on the stress-strain relation presented by Chung almost corresponded to the experimental ones. It was observed that the proper design of shear reinforcement leads to utilize the over-reinforcement concrete beam.
Kim, Hee-sung,Kang, Gilwon,Lee, Sunmi,Yoon, Chang-gyo,Kim, Minyoung KOREAN ACADEMY OF MEDICAL SCIENCE 2018 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.33 No.10
<P><B>Background</B></P><P>Chemoprophylaxis has been used to prevent malaria among soldiers and secondary transmission, as it effectively facilitates a decline in disease occurrence and secondary prevention. However, poor compliance and decreased risk of exposure to malaria necessitate that control strategies be reestablished.</P><P><B>Methods</B></P><P>To predict the incidence of malaria according to a control strategy, we proposed a mathematical model for its transmission using epidemiological data from 2010 to 2012. The benefit component included in the analyses was the averted cost with each control strategy, and the cost components were the cost of implementing chemoprophylaxis and early diagnosis.</P><P><B>Results</B></P><P>The chemoprophylaxis regimen with hydroxychloroquine sulfate and primaquine was Intervention 1, the regimen with primaquine only was Intervention 2, and diagnosis with a rapid diagnostic test (RDT) kit within 5 days of fever was Intervention 3. The simulation indicated that the combined control program with chemoprophylaxis and early diagnosis would be the most effective strategy, whereas sole early diagnosis would be the least effective strategy. However, the cost-benefit ratio of chemoprophylaxis was less than Intervention 1, irrespective of the varying range of chemoprophylaxis compliance, and that of early diagnosis was more than Intervention 1, regardless of the varying early diagnosis rate and demand for the RDT kit. Although chemoprophylaxis would be more effective at reducing the incidence of malaria than early diagnosis, it is less economical due to the higher cost.</P><P><B>Conclusion</B></P><P>Our results support the introduction of early diagnosis with a RDT kit to control malaria in the Republic of Korea Army.</P>
Kim, Gyo-Nam,Shin, Mi-Rae,Shin, Sung Ho,Lee, Ah Reum,Lee, Joo Young,Seo, Bu-Il,Kim, Min Yeong,Kim, Tae Hoon,Noh, Jeong Sook,Rhee, Man Hee,Roh, Seong-Soo Hindawi Publishing Corporation 2016 BioMed research international Vol.2016 No.-
<P>Pancreatic lipase is the enzyme responsible for digestion and absorption of triglycerides, being its inhibition one of the widest studied methods used to determine the potential activity of natural products to inhibit dietary fat absorption. Decrease of energy intake from dietary fat through inhibition of this enzyme may be an excellent strategy to prevent and treat obesity. The inhibitory activity on pancreatic lipase enzyme of<I> Diospyros kaki</I> fruit and<I> Citrus unshiu</I> peel mixture extract (PCM) was evaluated<I> in vitro</I> and its antiobesity effects were studied based on the serum lipid parameters analysis from high-fat diet- (HFD-) fed mice<I> in vivo</I>. PCM was orally administered at a dose of 50 and 200 mg/kg body weight for 6 weeks. In addition, the activity of pancreatic lipase was assessed using orlistat (positive control). PCM exhibited inhibitory effect on lipase activity with IC<SUB>50</SUB> value of 507.01 <I>μ</I>g/mL. Moreover, serum triacylglycerol, total cholesterol levels, and visceral fat weight were significantly reduced compared to HFD control mice in PCM 200 mg/kg-treated mice (<I>p</I> < 0.05). These results suggest that PCM administration may be a novel potential antiobesity agent for reduction of fat absorption via inhibition of pancreatic lipase.</P>