Jung Woo Yeol

학위논문(석사)--아주대학교 일반대학원 :지식정보보안학과,2014. 2최근 다양한 모바일 플랫폼과 모바일 단말기의 대중화로 인하여 개인 소유의 단말기를 업무에 이용하는 BYOD(Bring Your Own Device) 환경이 널리 사용되고 있다. 이러한 BYOD 환경은 평상시에 사용하는 모바일 단말기를 이용하기 때문에 개인의 업무 생산성 향상에 도움이 되며, 기업 입장에서는 추가적인 단말기 구매 비용을 줄일 수 있다는 장점이 있다. 본 논문에서는 BYOD 환경에서 개인의 사적인 데이터와 기업의 정보 자산을 분리하는 다양한 기술들을 소개하고, Launcher를 이용한 방법에서 안드로이드 플랫폼 변조 시 발생하는 내부 저장소의 앱 데이터 영역을 보호하기 위하여 App Data Security Module(ADSM)을 추가로 사용하는 방법을 제안한다. ADSM은 업무용 Launcher의 업무 영역 진입/진출 신호를 받아 내부 저장소에 있는 앱 데이터 영역을 암호화하고 디렉토리 구조를 변경하는 작업을 담당한다. 이와 같이 업무용 앱에 ADSM을 적용하면 내부 정보 유출의 위협으로부터 보안이 강화되기 때문에 BYOD 환경에서 동일한 단말기를 통해 개인의 사생활과 업무 처리가 좀 더 안전하게 이루어질 것으로 기대된다.Maste

A study of organizational effectiveness for the learnging construction of police organizations

본 연구는 경찰조직의 유효성 향상을 위해 조직 내 학습구축 수준이 어느 정도인지를 알아보고자 하였다. 분석의 평가요인으로 학습구축수준(개인차원의 학습, 팀 차원의 학습, 조직차원의 학습)과 지원시스템(리더, 보상시스템, 조직구조)으로 구분하였고, 직무만족이라는 매개변수를 이용하여 좀 더 효과적인 조직유효성 제고를 위한 조직관리 차원의 분석을 실시하였다. 분석결과를 살펴보면, 각 요인들은 조직유효성에 유의미한 영향관계가 있는 것으로 나타났으며, 특히 매개변수인 직무만족은 매개효과가 가장 강함을 보였다. 그 다음으 로 개인차원의 학습이 조직유효성 향상에 중요한 요인으로 분석되었다. 본 연구를 통해 얻은 함의는 경찰조직의 학습조직 구축을 위해서는 조직구성원들의 직무만족 수준을 강화하고, 개인차원의 학습이 지속적으로 이루어지도록 조직관리적 차원의 의사결정이 보다 적극적으로 이루어져야 할 것이다. The purpose of this research is to recognize how the learning construction level of organization increases the effectiveness level of police organizations. This study is divided into the learning construction level (individual, team, and organization level) and supporting system (leadership, compensation system, organizational structure) for analytical estimation factors. The study also executed an analysis using job satisfaction as the parameter for increasing organizational effectiveness. When the results of the analysis were examined, each factor was shown to have a positive effect on organizational effectiveness, and job satisfaction was particularly shown to have the strongest intermediation effect. Individual learning was found to be the second most important factor. The implication of this study is that it is necessary to strengthen job satisfaction to build up police rganizations as learning organizations. Finally, management decision making should be more active to promote ongoing learning at the individual level

Depositional processes of mass flows beyond the base-of-slope area and changes in slope failures in the SW Ulleung Basin (East Sea, Korea)

17 AMS 14C ages reveals spatial and temporal variations in depositional style of mass-flow lobes in the Ulleung Basin. On MR1 sonar image, eight N􀀀S elongated mass-flow lobes are identified in the western basin plain (>2100 m). Lobes 1􀀀4, deposited retrogressively, have large dimensions (>27 km long and 15􀀀25 km wide) and occupy in the lower stratigraphic position. On the other hand, lobes 5􀀀8, deposited in the more proximal area,have small dimensions (8.8􀀀31.5 km long and 1.2􀀀12 km wide) and occur in the upper stratigraphic position. Lobes 1 and 2 are characterized by relatively strong back-scattering intensity with smooth surfaces on MR1 image,and show flat, sharp bottom echo and several distinct to diffuse internal reflectors in chirp profiles. Sediments near their edges consist of fine-grained (muddy) turbidites with minor massive clay-rich sand. However, they change to coarse-grained debrites and turbidites with the overlying fine-grained turbidites toward the proximal part. Lobes 1 and 2 deposited between ca. 20 and 18 cal. ka B.P. Lobes 3 and 4, overlying lobe 2, show weak to medium back-scattering intensity on MR1 image with slightly irregular to hummocky surfaces corresponding to small-scale (27 km long and 15􀀀25 km wide) and occupy in the lower stratigraphic position. On the other hand, lobes 5􀀀8, deposited in the more proximal area,have small dimensions (8.8􀀀31.5 km long and 1.2􀀀12 km wide) and occur in the upper stratigraphic position. Lobes 1 and 2 are characterized by relatively strong back-scattering intensity with smooth surfaces on MR1 image,and show flat, sharp bottom echo and several distinct to diffuse internal refl1

Depositional features of co-genetic turbidite-debrite beds and possible mechanisms for their formation in distal mass-flow lobes beyond the base-of-slope, Ulleung Basin, East Sea

A detailed analysis of the MR1 (11−12 kHz) sonar images, chirp (2−7 kHz) profiles,core sediments and 14C ages from the latest Quaternary mass-flow lobes on the deep(>2,100 m water depth) basin plain of the western Ulleung Basin reveals various depositional processes of mass flows in the distal setting beyond the base-of-slope and changes in slope-failure style. Eight mass-flow lobes are present in the basin plain, ca. 30−60 km beyond the base-of-slope, and were generally deposited retrogressively. Lobes 1−4 (distal lobes) are longer (>27 km) and wider (15−25 km) than lobes 5−8 (proximal lobes) having the length of 8.8−31.5 km and the width of 1.2−12 km. Lobes 1 and 2 consist dominantly of the muddier mass-flow deposits deposited between 19.5 and 20.0 cal. ka B.P. after the Last Glacial Maximum. The relatively huge masses with the high content of muds failed on the muddy upper slopes, deeper than 350−400 m water depth. On other hand, the sandier, smaller lobes 6 and 7 were deposited between 16.5 and 17 cal. ka B.P., probably by sediment failures on the sandy uppermost slope, shallower than 350−400 m water depth. Lobe 1 consists of a lower sandy-mud turbidite grading upward into an upper mud-matrix debrite having small, rounded mud clasts. In contrast, the mass-flow bed of lobe 6 is characterized by a gradual upward change from a lower clay-posin reveals various depositional processes of mass flows in the distal setting beyond the base-of-slope and changes in slope-failure style. Eight mass-flow lobes are present in the basin plain, ca. 30−60 km beyond the base-of-slope, and were generally deposited retrogressively. Lobes 1−4 (distal lobes) are longer (>27 km) and wider (15−25 km) than lobes 5−8 (proximal lobes) having the length of 8.8−31.5 km and the width of 1.2−12 km. Lobes 1 and 2 consist dominantly of the muddier mass-flow deposits deposited between 19.5 and 20.02