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강성훈(Kang Sung-Hun),홍성걸(Hong Sung-Gul),박홍욱(Park Hong-Wook) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(구조계)
The Honeycomb System developed by CERA CHEM CO. LTD is a reinforcement of building structures and can strengthen shear resistance of existing buildings. This system is composed of Honeycomb Shaped Reinforcement Steel(HSRS) which can resist tensile forces and Rust and Earthquake Resisting Mortar(RERM) which can resist compressive forces and restrain the out of plane deflection of HSRS. In this study, To evaluate material characteristics of the Honeycomb System, Three kinds of material tests were conducted. First, To evaluate compressive strength of RERM, RERM and Remitar(Ready Mixed Dry Mortar for masonry) were tested according to KS L 5105. Second, To investigate tensile strength of Honeycomb System versus restraint effects by RERM, three kinds of specimens were made such as HSRS alone, HSRS filled with RERM for inside only and HSRS filled with RERM for both sides. Third, To evaluate bond characteristics between Honeycomb systems and structural materials, shear-bond strength on the surface of the concrete and the cement block was measured. The results of the tests are as follws 1) Compressive strength of RERM was 52㎫, which is 2.2 times stronger than Remitar. 2) Tensile strength of Honeycomb System was 5.45㎫, which is about twice stronger than normal concrete. In particular, tsnsile strength of HSRS filled with RERM for inside only was 6.11 times stronger than that of HSRS alone and tensile strength of HSRS filled with RERM for both sides was 1.76 times stronger than that of HSRS filled with RERM for inside only. 3) Shear-bond strength on the surface between the cement block and the Honeycomb System was 2.44㎫, which is as strong as shear-bond strength on the surface between Carbon Fiber Reinforced Polymer(CFRP) and concrete. but shear-bond strength on the surface between the normal concrete and the Honeycomb System was 1.79㎫, which is four-third times weaker than that of the cement block.
급성 골수성 백혈병에서 Adenosine deaminase 측정의 임상적 유용성
고광상 ( Kwang Sang Kho ),박정오 ( Chung Oh Park ),강성훈 ( Seung Hun Kang ),김재석 ( Jae Suk Kim ),박순철 ( Seun Cherl Park ),서연실 ( Yeon Sil Seo ),김기헌 ( Ki Heun Kim ),조무자 ( Mu Ja Joe ) 대한임상검사과학회 1999 대한임상검사과학회지(KJCLS) Vol.31 No.2
Adenosine deaminase(ADA) activiteis in sera are increased in various disease such as hematologic ma1ignancies, tuberculosis, and liver diseases. To eva1uate the c1inica1 va1ue of measuring ADA and its isoenzyme activites in plasma with the automated assay in acute myeloid leukemia, we compared ADA and its isoenzyme activities in norma1 control group with those in acute myeloid leukemia group, and followed up those during chemotherapy in AML group. The measurements of plasma ADA and its isoenzymes, especia11y ADAl were useful for AML diagnosis. But they were not va1uable markers to discriminate between complete remission and incomplete remission. For the detection of relapse, it could be va1uable to measure ADA activities beyond 4 weeks after chemotherapy.