http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Mass imputation for two-phase sampling
박세호,김재광 한국통계학회 2019 Journal of the Korean Statistical Society Vol.48 No.4
Two-phase sampling is a cost-effective method of data collection using outcomedependent sampling for the second-phase sample. In order to make efficient use of auxiliary information and to improve domain estimation, mass imputation can be used in two-phase sampling. Rao and Sitter (1995) introduce mass imputation for two-phase sampling and its variance estimation under simple random sampling in both phases. In this paper, we extend the Rao–Sitter method to general sampling design. The proposed method is further extended to mass imputation for categorical data. A limited simulation study is performed to examine the performance of the proposed methods.
수익공유 기반 공급사슬에서 가격과 서비스 수준을 고려한 새로운 계약방법
박세호,이영해,조동원 대한산업공학회 2011 대한산업공학회 추계학술대회논문집 Vol.2011 No.11
본 연구는 공급사슬에 새로운 공급계약방법을 적용하여 공급사슬 전체의 입장에서 이익극대화를 위한 소매업체 및 공급업체들의 상황을 살펴보았다. 공급사슬의 최적화된 성과를 얻기 위해 공급사슬 내 파트너들의 위험과 인센티브를 서로 공유함으로써 공급사슬 전체의 이익을 최적화 시키는 수익공유모델을 채택하게 되었다. 그리고 수익공유에서 발생되는 문제점을 보완하는 수량할인계약을 결합하여 새로운 계약방법을 제시하였다. 이 계약방법을 통하여 공급사슬의 전체 최적화를 달성하면서 동시에 공급사슬의 모든 업체들이 서로 win-win 할 수 있음을 밝혀내었다.
인삼성분이 효모의 알콜저장에 미치는 영향 1. 효모의 생리에 미치는 영향
박세호,유태종,이석건,Park, Se-Ho,Yu, Tae-Jong,Lee, Seok-Geon 고려인삼학회 1981 Journal of Ginseng Research Vol.5 No.2
The effect of ginseng extract and ginseng saponins on alcoholic fermentation was studied 1. Alcoholic fermentation on gllicose medium at 30$^{\circ}C$. by Saccharomyces coveanus and Saccharomyces uvavum was stimulated when the media contained 5% and 10 % of ginseng extract, respectively. But that of Saccharomyces cerevisiae was inhibites by the addition of 10% of ginseng extract. 2. Saponin did not stimulate the alcoholic fermentation by Saccharomyces uvarum. 3. The yeast cell counts was increased remarkably by addition of ginseng extract while that of ginseng saponins was increased slightly. Dried cell weight of the broth which Contained 5% of ginseng extract was 3 times than that of control.
무기항균제 및 난연제를 함유한 PVC 복합소재의 항균 및 난연 특성
박세호,이형수,이재열,최주환,박태희,양선아,방대석,지광환 한국고분자학회 2018 폴리머 Vol.42 No.2
The aim of this study is to develop new materials with antimicrobial effect and flame-retardant properties. PVC/IB/ATH, a PVC composite material containing inorganic bacteriocide (IB) with silver and zinc in the zeolite pores, and aluminum trihydroxide (ATH), an environmentally friendly inorganic flame-retardant, was prepared. The antimicrobial effect of PVC/IB/ATH composite material was confirmed to be 99% as a result of turbidity analysis, shaking culture, drop-test, and double staining test using two kinds of bacteria. The flame-retardant properties of PVC/IB/ATH composites were investigated by limiting oxygen concentration index and thermogravimetric analysis, and they were increased depending on the aluminum content of ATH and IB agent. Also, the thermal properties of PVC/IB/ATH composites were slightly increased. In conclusion, the application of PVC/IB/ATH is expected in various fields such as medical industry, antibacterial system and flame-retardant materials.
변형된 유리치은 이식술을 이용한 구강-상악동 농루의 치험례
박세호,한지영,Park, Se-Ho,Han, Ji-Young 대한치주과학회 2008 Journal of Periodontal & Implant Science Vol.38 No.1
Purpose: Surgical intervention into the maxillary posterior area can lead to inadvertent communication with the maxillary sinus. Spontaneous healing of 1 to 2 mm openings can occur. However, in patients with larger oro-antral communications and those with a history of sinus disease, surgical closure is often indicated. Materials and Methods: In this case, a modified free gingival graft technique was used. The oro-antral sinus track after extraction was about $2{\times}4\;mm$. But the patient had a history of Caldwell-Luc operation. Immediately after extraction, a modified free gingival graft was used for the closure of oro-antral sinus track. Result: A modified free gingival graft technique was successfully used for the closure of oro-antral sinus track. With this technique, esthetic results including similar colors, textures were achieved. Conclusion: It is thought that this technique is very useful in the closure of oro-antral sinus track.
박세호,이승태 한국도로학회 2021 도로 : 도로학회지 Vol.23 No.3
PURPOSES : In this study, experimental findings regarding the frost resistance of concrete incorporated with mineral admixtures such as fly ash (FA) and ground granulated blast-furnace slag (SG) are presented. METHODS : To evaluate the performance of the abovementioned concretes under repeated freezing and thawing environments, based on the ASTM C 666 standard, the relative dynamic modulus of elasticity and mass ratio measurements are performed regularly. Furthermore, based on the ASTM C 672 standard, the concretes are exposed to 4% CaCl2 and NaCl salt solutions along with repeated 50 cycles of freezing and thawing. Subsequently, the scaling resistance is evaluated based on the scaled-off mass content and visual examination. RESULTS : SG is less effective in enhancing the scaling resistance of concrete compared with FA. However, the concrete incorporated with SG is more resistant to repeated freeze-thaw actions compared with OPC concrete. Meanwhile, compared with OPC concrete, the concrete incorporated with FA indicates a similar performance in terms of scaling resistance and better resistance against repeated freeze-thaw actions. CONCLUSIONS : The frost resistance of concrete depends significantly on the types of mineral admixtures used in concrete. This emphasizes the importance of selecting the appropriate binder to achieve durable concrete pavements in cold climate regions.
GFRP 플레이트로 보강된 새로운 경량중공합성 바닥시스템의 전단성능 평가
박세호,류재호,주영규,김상대,Park, Se-Ho,Ryu, Jae-Ho,Ju, Young-K.,Kim, Sang-Dae 대한건축학회 2011 대한건축학회논문집 Vol.27 No.3
As the demand of high-rise residential buildings increases, newly systems maintaining good point of composite beam and developing serviceability was developed in and outside the country. But it also can't realize a long span structure. Thus there are some requirements for a new floor system that the long span, the reduced height, the improvement of serviceability, and the excellent fire proof can be achieved. For these reasons, we developed the Light-Weight Void Composite Floor using Glass Fiber Reinforced Plastic that can raise a stiffness without increasing weight and can offer a tension ability and fire resistant performance. In this study, it is subject to evaluate the shear performance through the proposal concerning shear design and the test result to evaluate applicability of new composite slab system in practice.