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건설 PMIS 실태와 건설 CALS 연계 및 확산방안에 관한 연구
송병관,박영호,백준홍 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
This study has aimed for wide spreading of CALS in Construction Industry. The PMIS produce original information of construction project linked to CALS. So, this study have investigated present state of PMIS in construction industry, and reviewed the interface to construction CALS. And, key issues of adopting PMIS & CALS to whole construction and its related industry have been found. Additionally, it has also found improvement issues of construction system and political supports for PMIS adoption.
MgF<sub>2</sub> 나노입자 코팅층에 의한 발광 다이오드의 광추출 효율 향상
송병관,정재용,조영래,김영국 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
We developed a strategy to minimize reflectivity and to enhance light extraction efficiency of phosphor-based glass converter for high power light emitting diodes (LEDs). In this study, MgF<sub>2</sub> nanoparticles was prepared by hydrothermal method and was deposited on glass substrates for antireflection effect. Very low reflectance (<0.2%) was achieved with MgF<sub>2</sub> nanoparticle layers and the excellent durability was provided to the layer by incorporating silicate binders. Owing to its high transmittance, the MgF<sub>2</sub> can be applied as a light extraction layer in the LED. MgF<sub>2</sub> nanoparticles were deposited on glass-based color converters of high power LEDs to enhance their extraction efficiency. Assisted by light extraction layers of MgF<sub>2</sub> nanoparticles, the emission efficiency of white LEDs were highly enhanced and LEDs with high luminescence efficacy were prepared.
취약점 별 아티팩트 사례 분석을 통한 아티팩트 그룹핑 연구 : 어도비 플래시 플레이어 취약점을 이용하여
송병관,김선광,권은진,진승택,김종혁,김형철,김민수 한국융합보안학회 2019 융합보안 논문지 Vol.19 No.1
The damage is increasing due to many encroachment accidents caused by increasingly sophisticated c yber attacks. Many institutions and businesses lack early response to invest a lot of resources in the inf rastructure for incident detection. The initial response of an intrusion is to identify the route of attack, a nd many cyber attacks are targeted at software vulnerabilities. Therefore, analyzing the artifacts of a Wi ndows system against software vulnerabilities and classifying the analyzed data can be utilized for rapid initial response. Therefore, the remaining artifacts upon entry of attacks by software are classified, and artifact grouping is presented for use in analysis of encroachment accidents. 점차 고도화되는 사이버 공격에 의한 많은 침해사고로 피해가 증가하고 있다. 많은 기관 및 기업체에서는 사고 탐지를 위 한 인프라만에 많은 자원을 투자하기에 초기대응에 미흡하다. 침해사고의 초기대응은 공격의 유입경로 파악이 우선이며, 이루 어지고 있는 많은 사이버 공격은 소프트웨어 취약점을 대상으로 하고 있다. 따라서, 소프트웨어 취약점을 대상으로 윈도우 시 스템의 아티팩트를 분석하고, 분석한 데이터를 분류하면 신속한 초기대응에 활용할 수 있다. 그러므로 소프트웨어 별 공격 유 입 시 남는 아티팩트를 분류하여 침해사고 분석 시에 활용할 수 있는 아티팩트 그룹핑을 제시한다.
무반사 코팅을 위한 MgF2 나노입자 합성과 박막 부착력 향상을 위한 연구
송병관,정재용,조영래,나종주,김정완,김영국 대한금속·재료학회 2020 대한금속·재료학회지 Vol.58 No.3
Anti-reflective (AR) coatings are popular because they offer high durability with effective reflectance and glare reduction, and they can endure both physical and environmental damage. Magnesium fluoride (MgF2) has been used as a nanoparticle coating on AR coating materials by many researchers because they exhibit high transmittance and antireflection characteristics in the visible region, due to its low refractive index. When using MgF2 nanoparticles on a coated AR film, however, a binder is needed to improve abrasion resistance because the binding strength between particles is weak. In this study, AR coating films were prepared by adding MgTFA as a precursor to improve the adhesion resistance of the AR coating films. The AR coating films were characterized by UV-Vis, XRD, TEM, as well as viscosity and abrasion tests. The binder added to MgF2 to improve the bonding strength between the particles showed excellent durability. The MgF2 with added binder had a stronger film strength than a binderless MgF2 film, even at low drying temperatures. It also exhibited lower reflectance. These characteristics are expected to be valuable for camera lenses, for thin films that require high light extraction efficiency, and in anti-reflection films on solar cell surfaces.