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김남명,권헌영 경찰대학 치안정책연구소 2022 치안정책연구 Vol.36 No.1
Recently, digital evidence is emerging as a key evidence for discovering the substantive truth not only in cyber crime but also in general crime. Despite the importance of digital evidence, there are many cases in which the admissibility of evidence is denied because the principles of due process such as the principle of selective seizure and guarantee of the accused right to participate are not observed. This study aims to present problems in the current digital forensic process through these cases and on-site interviews, and to suggest improvements that can improve digital forensic expertise and reliability of the police. To improve these circumstance, the field participation of external digital forensics experts and the operation of a digital forensics field support organization, and training of forensics experts were suggested. It is expected to improve the effectiveness of the investigation and discovering the substantive truth, as well as guarantee the basic rights of the suspect such as personal information and property right through these suggestions.
이성훈(Sung-Hun Lee),최재석(Jae-Seok Choi),차준민(Jun-Min Cha),김남명(Daniel Kim) 대한전기학회 2014 전기학회논문지 Vol.63 No.7
The pumped storage power plants have excellent load following characteristics. It can also be committed quickly for synchronous reserve when it is in the generating mode because it can readily increase its generating power and, consequently, increases the overall system reliability. There are strong incentives for standing the system reliability. Additionally, CO₂ emission can be typically impacted due to operation of pumped generators. The increase or decrease of CO₂ depends on the generation mix. This paper proposes evaluation of reliability, economy and environment of power system considering pumped generator. This paper describes three case studies of the reliability and economy and environment according to capacity factor and storage capacity of pumped generators. The probabilistic production simulation model is used in this paper. The practicality and effectiveness of the proposed approach are demonstrated by simulation studies for a real size power system model on the 5<SUP>th</SUP> power plan in Korea.