http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이병훈,안기봉,배상원,배선우,김병기,김지순,Lee, B.H.,Ahn, K.B.,Bae, S.W.,Bae, S.W.,Khoa, H.X.,Kim, B.K.,Kim, J.S. 한국분말야금학회 2015 한국분말재료학회지 (KPMI) Vol.22 No.3
Fe-TiC composite powders were fabricated by planetary ball mill processing. Two kinds of powder mixtures were prepared from the starting materials of (a) (Fe, TiC) powders and (b) (Fe, $TiH_2$, Carbon) powders, respectively. Milling speed (300, 500 and 700 rpm) and time (1, 2, and 3 h) were varied. For (Fe, $TiH_2$, Carbon) powders, an in situ reaction synthesis of TiC after the planetary ball mill processing was added to obtain a homogeneous distribution of ultrafine TiC particulates in Fe matrix. Powder characteristics such as particle size, size distribution, shape, and mixing homogeneity were investigated.
Fe-TiC 복합재료 분말의 상압소결과 방전플라즈마소결
이병훈,배상원,배선우,김지순,Lee, B.H.,Bae, S.W.,Bae, S.W.,Khoa, H.X.,Kim, Ji Soon 한국분말야금학회 2015 한국분말재료학회지 (KPMI) Vol.22 No.4
Two sintering methods of a pressureless sintering and a spark-plasma sintering are tested to densify the Fe-TiC composite powders which are fabricated by high-energy ball-milling. A powder mixture of Fe and TiC is prepared in a planetary ball mill at a rotation speed of 500 rpm for 1h. Pressureless sintering is performed at 1100, 1200 and $1300^{\circ}C$ for 1-3 hours in a tube furnace under flowing argon gas atmosphere. Spark-plasma sintering is carried out under the following condition: sintering temperature of $1050^{\circ}C$, soaking time of 10 min, sintering pressure of 50 MPa, heating rate of $50^{\circ}C$, and in a vacuum of 0.1 Pa. The curves of shrinkage and its derivative (shrinkage rate) are obtained from the data stored automatically during sintering process. The densification behaviors are investigated from the observation of fracture surface and cross-section of the sintered compacts. The pressureless-sintered powder compacts show incomplete densification with a relative denstiy of 86.1% after sintering at $1300^{\circ}C$ for 3h. Spark-plasma sintering at $1050^{\circ}C$ for 10 min exhibits nearly complete densification of 98.6% relative density under the sintering pressure of 50 MPa.
경남지역에서의 Latex응집반응을 이용한 소 톡소플라즈마 항체분포 조사
이병훈 ( B. H. Lee ),류중운 ( C. U. Lyu ),황보원 ( B. W. Hwang ),변유성 ( Y. S. Byun ),조광제 ( K. J. Cho ) 한국동물위생학회 1995 한국동물위생학회지 (KOJVS) Vol.18 No.3
This study was conducted to determine the serum antibodies against toxoplasma in bovine from gyeongnam district by latex agglutination(LA) test. LA test was carried out with Toxo-MT kit(Eiken chemical co). The result obtained were summerized as follow: 1. Positive rates of toxoplasma antibodies in 1,488 bovine sera was 5.0%(75 cases) by LA test. 2. The toxoplasma antibody detection rates against 823 korean cattle and 865 dairy cattle were 1.8%(11 cases) and 7.4%(64 cases) respectively. 3. In LA test serum antibody titers in 75 positive sera were shown as 54 cases(72.0% in 1:32, 9(12.0%) in 1:64, 7(9.4%) in 1:128, 3(3.40%) in 1:256, 1(1.3%) in 512 and 1(1.3%) in 1:2,048 respectively. 4. Positive rates of toxoplasma antibodies in cattls sera from each area were 0.2~22.0%.
이병훈(B.H.Lee),유완석(W.S.Yoo),김준호(J.H.Kim) 한국자동차공학회 1993 오토저널 Vol.15 No.2
The dynamic behaviors of a launcher under impulsive forces are analyzed. All the components of the system, ie;chassis, turret, cage and suspension parts, are modeled as rigid. The dynamic analysis code, which is developed with the formulae describing the system equations of motion in terms of relative quantities, is used to cany out the analysis. The results show the dynamic responses of chassis and cage when the driving constraints are imposed on turret and cage.