• 제목/요약/키워드: operational time

검색결과 1,954건 처리시간 0.029초

공공성 확보측면에서 민간공원특례사업 운영특성분석 - "부산광역시를 사례로" - (The Private-Initiated Park Development Project in Terms of Securing Publicity Operation Characteristics Analysis - Busan Metropolitan City as a Case -)

  • 권영달;박현빈;김동필
    • 한국조경학회지
    • /
    • 제51권1호
    • /
    • pp.13-28
    • /
    • 2023
  • 본 연구는 민간공원특례사업 추진단계에서 전국 최초로 민간 참여형 -협의체를 도입하고, 시행과정에서 제도의 유연한 적용과 구별된 정책적 요소 등을 도입한 부산광역시를 대상으로 사업추진의 과정을 살펴보고 운영특성 및 성과 등을 분석하고자 하였다. 분석결과 첫째, 사업방식에 있어 혼합방식을 도입하여 우선협상자를 선정하였는데, 이는 타 지자체에서 볼 수 없는 독자적 사업방식으로 공공재의 민간개발에 따른 공정성과 투명성을 확보하기 위한 새로운 시도로 평가될 수 있다. 둘째, 공원별 특성을 고려한 가이드라인과 비공원시설의 입지, 면적, 최고높이 등 세부지침 등을 명시하여 지역 정체성을 살린 합리적 개발계획 수립의 준거와 평가기준의 토대를 마련하였다. 셋째, 사업과정에 있어서 민관협의체인 권한위임형 라운드테이블을 통해 투명성을 확보하여, 특혜의혹과 같은 분쟁 등의 발생을 최소화하였다. 넷째, 기부채납되는 공원시설의 품질향상과 설계 적정성 확보를 위하여 실시계획인가 이후 총괄계획가 도입 및 건설사업관리(설계단계) 용역을 수행토록 하여 지역 내 명품공원의 효율적 구현과 특화를 도모하였다. 그 결과 부산광역시는 일몰로부터 5개 공원, 2.25km2의 공원면적 보전과 토지보상 및 공원조성비 7,400억원 절감을 통해 효율적인 사업진행을 하였으며, 무엇보다 민간이 주도하고 기관이 지원하는 새로운 운영형식 도입으로 새롭게 시행된 민간공원특례사업의 공공성 강화를 제시하였다. 다만 이러한 제도적용과 검증절차 등으로 인하여 사업기간이 장기화되고, 민간사업자의 재정적 부담과 함께 공원서비스가 지연되고 있어 기간 단축을 위한 관련 특례법 제정과 사업방식의 개선 등이 보완되어야 할 것으로 보인다.

지형정보 기반 조난자 행동예측을 위한 마코프 의사결정과정 모형 (MDP(Markov Decision Process) Model for Prediction of Survivor Behavior based on Topographic Information)

  • 손진호;김수환
    • 지능정보연구
    • /
    • 제29권2호
    • /
    • pp.101-114
    • /
    • 2023
  • 유사시 종심 깊숙한 곳에서 적을 타격하는 임무를 수행하는 항공기의 경우 격추될 위험에 항시 노출되어 있다. 현대전의 핵심 전투력으로써 최첨단의 무기체계를 운용하는 공중근무 요원은 양성하는데 많은 시간과 노력, 국가 예산이 소요되며 그들이 가진 작전 능력과 군사기밀이 매우 중요하기에 공중근무 요원의 생환은 매우 중요한 문제이다. 따라서, 본 연구에서는 적지에서 비상탈출한 조난자가 장애물을 피해 목표지점까지 도피·탈출을 시행할 경로를 예측하는 경로 문제를 연구하였으며 이를 통해 비상탈출한 조난자의 무사 생환 가능성을 높이고자 하였다. 본 연구 주제와 관련된 기존 연구들은 경로 문제를 네트워크 기반 문제로 접근하여 TSP, VRP, Dijkstra 알고리즘 등으로 문제를 변형하여 최적화 기법으로 접근한 연구가 있었다. 본 연구에서는 동적 환경을 모델링 하기에 적합한 MDP(마코프 의사결정과정)를 적용하여 연구하였다. 또한 GIS를 이용하여 지형정보 데이터를 추출하여 활용함으로써 모형의 객관성을 높였으며, MDP의 보상구조를 설계하는 과정에서 기존 연구 대비 모형이 좀 더 현실성을 가질 수 있도록 보다 상세히 지형정보를 반영하였다. 본 연구에서는 조난자가 지형적 이점을 최대한 이용함과 동시에 최단거리로 이동할 수 있는 경로를 도출하기 위하여 가치 반복법 알고리즘, 결정론적 방법론을 사용하였으며 실제 지형정보와 조난자가 도피·탈출 과정에서 만날 수 있는 장애요소들을 추가하여 모형의 현실성을 더하고자 하였다. 이를 통해 조난자가 조난 상황에서 어떠한 경로를 통해 도피·탈출을 수행할지 예측해 볼 수 있었다. 본 연구에서 제시한 모형은 보상구조의 재설계를 통해 여러 가지 다양한 작전 상황에 응용이 가능하며 실제 상황에서 조난자의 도피·탈출 경로를 예측하고 전투 탐색구조 작전을 진행시키는 데 있어 다양한 요소가 반영된 과학적인 기법에 근거한 의사결정 지원이 가능할 것이다.

임상시험 및 대상자보호프로그램의 운영과 현황에 대한 설문조사 연구(2019) (Survey of Operation and Status of the Human Research Protection Program (HRPP) in Korea (2019))

  • 맹치훈;이선주;조성란;김진석;라선영;김용진;정종우;김승민
    • 대한기관윤리심의기구협의회지
    • /
    • 제2권2호
    • /
    • pp.37-48
    • /
    • 2020
  • Purpose: The purpose of this study is to assess the operational status and level of understanding among IRB and HRPP staffs at a hospital or a research institute to the HRPP guideline set by the Ministry of Food and Drug Safety (MFDS) and to provide recommendations. Methods: Online survey was distributed among members of Korean Association of IRB (KAIRB) through each IRB office. The result was separated according to topic and descriptive statistics was used for analysis. Result: Survey notification was sent out to 176 institutions and 65 (37.1%) institutions answered the survey by online. Of 65 institutions that answered the survey; 83.1% was hospital, 12.3% was university, 3.1% was medical college, 1.5% was research institution. 23 institutions (25.4%) established independent HRPP offices and 39 institutions (60.0%) did not. 12 institutions (18.5%) had separate IRB and HRPP heads, 21 (32.3%) institutions separated business reporting procedure and person in charge, 12 institutions separated the responsibility of IRB and HRPP among staff, and 45 institutions (69.2%) had audit & non-compliance managers. When asked about the most important basic task for HRPP, 23% answered self-audit. And according to 43.52%, self-audit was also the most by both institutions that operated HRPP and institutions that did not. When basic task performance status was analyzed, on average, the institutions that operated HRPP was 14% higher than institutions that only operated IRB. 9 (13.8%) institutions were evaluated and obtained HRPP accreditation from MFDS and the most common reason for obtaining the accreditation was to be selected as Institution for the education of persons conducting clinical trial (6 institutions). The most common reason for not obtaining HRPP accreditation was because of insufficient staff and limited capacity of the institution (28%). Institutions with and without a plan to be HRPP accredited by MFDS were 20 (37.7%) each. 34 institutions (52.3%) answered HRPP evaluation method and accreditation by MFDS was appropriate while 31 institutions (47.7%) answered otherwise. 36 institutions answered that HRPP evaluation and accreditation by MFDS was credible while 29 institutions (44.5%) answered that HRPP evaluation method and accreditation by MFDS was not credible. Conclusion: 1. MFDS's HRPP accreditation program can facilitate the main objective of HRPP and MFDS's HRPP accreditation program should be encouraged to non-tertiary hospitals by taking small staff size into consideration and issuing accreditation by segregating accreditation. 2. While issuing Institution for the education of persons conducting clinical trial status as a benefit of MFDS's HRPP accreditation program, it can also hinder access to MFDS's HRPP accreditation program. It should also be considered that the non-contact culture during COVID-19 pandemic eliminated time and space limitation for education. 3. For clinical research conducted internally by an institution, internal audit is the most effective and sole method of protecting safety and right of the test subjects and integrity for research in Korea. For this reason, regardless of the size of the institution, an internal audit should be enforced. 4. It is necessary for KAIRB and MFDSto improve HRPP awareness by advocating and educating the concept and necessity of HRPP in clinical research. 5. A new HRPP accreditation system should be setup for all clinical research with human subjects, including Investigational New Drug (IND) application in near future.

  • PDF

공작기계의 4차 산업혁명에서 특수한 형상 포켓 곡면가공을 위한 초정밀 소형 앵글 스핀들 개발에 관한 연구 (A Study on the Development of Ultra-precision Small Angle Spindle for Curved Processing of Special Shape Pocket in the Fourth Industrial Revolution of Machine Tools)

  • 이지웅
    • 실천공학교육논문지
    • /
    • 제15권1호
    • /
    • pp.119-126
    • /
    • 2023
  • 오늘날 자동차의 연비 향상 과 동적 거동 향상을 위해서 자동차 부품의 경량화 및 간소화 시대가 형성되고 있다. 설계와 제작의 간소화를 위해 제품 형상을 다양한 부품의 일체화로 진행되고 있다. 예를 들어 3개의 제품을 1개의 제품화 시키기 위해서 아주 협소한 부분까지 제품 가공하는 일이 발생되고 있다. 기존의 부품의 경우 가공의 편의성을 위해 정밀 다이캐스팅 또는 주물 생산으로 가공 후 조립하는데 다중 조립체(multi-piece) 방식은 공정수가 많이 필요로 하며, 부품의 정밀도와 강도를 저하시키는 요인이 된다. 가공 공정을 단순화 시키고 부품의 강도를 확보하기 위해서 일체형으로 제작하는 것이 단점을 극복하는데 매우 유리하지만 깊고 좁은 포켓 부분을 가공 할 경우 장비 자체 스핀들로는 가공이 불가능하다. 문제점을 해결하고자 절삭가공에 대한 연구가 활발하게 진행되고 있으며, 다축 복합가공 기술은 이러한 문제점을 해결할 뿐만 아니라, 지금까지 하나의 공작기계로 여러 공정에 따른 유연한 절삭가공이 어려웠던 복합 형상에도 절삭가공이 가능하다는 등 많은 장점을 가지고 있다. 하지만 고가의 장비로 인하여 제조경비 상승과 기계를 운영할 수 있는 기술자가 부족한 것이 현실이다. 5축 절삭 가공기에서는 깊고 협소한 구간의 제품을 생산할 때 공구의 간접으로 제품 생산에 사이클 타임이 늘어남은 물론 가공상에 문제점들이 많이 발생된다. 따라서 전용 공작기계 및 다축 복합가공기를 사용해야 한다. 그 대안으로 3축 머시닝센터에서 5축 이상의 다축 복합가공을 할 수 있는 특수 공구로서의 앵글 스핀들(angle spinde)이 사용될 수 있다. 앵글 스핀들 사용함으로 가공 진동 흡수, 낮은 열 발생과 작동 안정성, 우수한 치수 안정성, 강도 확보와 같은 분야에서 다양하고 지속적인 연구가 필요하다.

국내 터널식환기 무창 육계사에서 여름철 쿨링패드 사용에 따른 계사 내부 온도 저감 효과 및 더위지수(THI)에 미치는 영향 (Effects of Pad Cooling Systems in Tunnel-Ventilated Broiler House on Reducing Indoor Temperature and Level of Temperature-Humidity Index during Summer)

  • 김혜란;박설화;위지수;이성신;이성대;강환구;류채화
    • 한국가금학회지
    • /
    • 제51권2호
    • /
    • pp.57-63
    • /
    • 2024
  • 전세계적인 기후변화로 인해 국내 평균기온과 여름철 폭염 강도가 심화되면서 고온스트레스로 인가축 피해를 완화하기 위한 사양 전략이 필요한 상황이다. 국내육계사의경우 터널식 환기계사나 쿨링패드 등 시설을 설치하여 여름철 실내온도를 저감하고 있다. 그러나 쿨링패드의 경우 계사내부의 습도를 증가시켜 역으로 피해를 유발할 수 있어 사용시 주의를 요한다. 따라서 본 연구에서는 국내의 대표적 계사 형태인 터널식 환기 무창 육계사에서 쿨링패드를 가동시 계사 내부의 온도 저감 효과를 더위지수(temperature-humidity index; THI)로 함께 평가하고자 하였다. 본 연구에서는 우리나라의 각각 다른 지역에 위치한 8개의 터널식 환기 무창계사 육계농가를 대상으로 여름철(6~9월) 온도와 습도 데이터를 수집하였다. 해당 농가들은 쿨링패드의 유무에 따라 2개의 처리군으로 나뉘었으며, 출하 2주 전 기준으로 온습도 데이터를 추출하여 계사 내·외부간 온습도 및 THI의 편차를 구하였다. 메타분석 결과, 여름철 가장 더운 낮시간대인 14시를 기준으로 대조구 대비 쿨링패드 보유 농가에서 내외부 온도의 차이가 크고, 해가 지는 16시대에 내외부 온도의 차이가 줄어드는 것으로 관찰되었다(P<0.05). 쿨링패드에 따른 상대습도에 대한 유의적인 차이는 없었으나(P>0.05), 스트레스를 수치화한 THI 지수로 환산하였을 때, 오후 3시부터 대조구 대비 쿨링패드 보유 처리구가 THI 편차 값이 감소하여 효과가 줄어드는 것으로 판단되었다(P<0.05). 본 연구의 결과 14시 쿨링패드를 보유한 농가는 쿨링패드가 없는 대조구 농가보다 계사내외부 온도차가 크게 나타났고, 이는 계사내부 온도저감에 효과가 있다고 판단할 수 있다. 따라서 쿨링패드 사용시 계사내 더위피해를 저감하는 데 효과가 있을 것으로 생각되며, 본 연구의 결과는 하절기 육계의 고온스트레스 저감을 위해 쿨링패드 운용시 참고자료로 활용할 수 있을 것으로 생각된다.

학원의 에듀테크특성과 유·무형적서비스가 학부모의 재수강의도에 미치는 영향: 라포형성행동의 조절효과 (The Impact of Edu-Tech and Tangible and Intangible Services of Private Institutes on parents' Intention for Re-Enrollment: The Moderating Effect of Rapport-Building Behavior)

  • 전지연;하태관
    • 벤처창업연구
    • /
    • 제19권4호
    • /
    • pp.127-139
    • /
    • 2024
  • 본 연구는 에듀테크특성과 유·무형의 교육서비스가 학원의 경영성과와 직접적 관련이 있는 재수강의도에 미치는 영향에 관한 연구이다. 연구 결과를 근거로 학원의 재수강의도와 경영성과 향상 방안 제시를 목적으로 연구하였다. 사교육은 공교육의 한계를 보완하며 지속적으로 성장하며, 학부모의 의존도를 높여가고 있다. 본 연구는 정보통신기술의 발달과 함께 교육현장에서 활용도를 높여가고 있는 에듀테크특성과 무형적서비스 및 유형적서비스 요인들이 재수강의도에 영향을 미칠 것이라는 가설과 각 요인들이 재수강의도에 영향을 미치는데 있어 학부모와의 라포형성행동이 조절효과가 있을 것이라는 가설을 검증하였다. 가설 검증결과, 에듀테크특성 중 콘텐츠와 무형적서비스인 신뢰성과 공감성 그리고 유형적서비스인 유형성과 지불접근성이 재수강의도에 긍정적인 영향을 주는 것으로 나타났다. 학원의 교육서비스와 재수강의도 사이에서 라포형성행동이 조절효과를 나타낼 것이라는 가설은 무형적서비스의 공감성과 유형적서비스의 유형성 두 가지 요인이 채택되었다. 가설 검증 결과를 바탕으로 본 연구에서는 학원의 경영성과 향상을 위한 세 가지 방안을 제시하였다. 첫째, 에듀테크특성의 개선과 관리 차원에서 에듀테크의 도입 및 콘텐츠의 최신화와 운영의 안정성 확보를 제안하였다. 둘째, 무형적서비스의 개선과 관리 차원에서 강사의 자질과 역량 향상을 위한 채용관리와 공신력 있는 기관을 통한 지속적 교육으로 전문성 유지 그리고 교육 프로그램의 질적 수준 향상을 바탕으로 한 학생 수준별 교육을 제안하였다. 셋째, 유형적서비스의 개선과 관리 차원에서 적절한 수강료 책정과 온라인, 모바일, 카드, 계좌이체 등 장소와 시간에 구애함 없는 다양한 수강료 납부 방법의 마련과 학습에 집중할 수 있는 인테리어와 편의시설 구비를 제안하였다. 또한 라포형성행동의 조절효과를 고려하여 유형성의 개선과 관리에 있어 비용을 수반하는 개선이나 관리도 필요하지만 라포형성을 통해 유형성의 수준이 높다고 느끼게 하는 것도 중요함을 주장하였다. 또한 정보통신기술 기반의 에듀테크의 중요성이 증가하고 있는 만큼 LLM 기반의 AI기술, AR·VR을 적용한 메타버스 환경구축 등 혁신적 기술을 도입하고자 하는 벤처정신을 갖춘 학원에 대한 정부의 기술지원, 벤처인증제도 지원과 같은 다양한 지원책이 필요하다. 본 연구가 교육현장에서 개선하고 관리하여야 할 항목과 방법을 구체적으로 제시함으로써 학원의 경영성과 개선에 도움이 될 것이라 기대한다.

  • PDF

참여자관점에서 공급사슬관리 시스템의 성공에 영향을 미치는 요인에 관한 실증연구 (An Empirical Study on the Determinants of Supply Chain Management Systems Success from Vendor's Perspective)

  • 강성배;문태수;정윤
    • Asia pacific journal of information systems
    • /
    • 제20권3호
    • /
    • pp.139-166
    • /
    • 2010
  • The supply chain management (SCM) systems have emerged as strong managerial tools for manufacturing firms in enhancing competitive strength. Despite of large investments in the SCM systems, many companies are not fully realizing the promised benefits from the systems. A review of literature on adoption, implementation and success factor of IOS (inter-organization systems), EDI (electronic data interchange) systems, shows that this issue has been examined from multiple theoretic perspectives. And many researchers have attempted to identify the factors which influence the success of system implementation. However, the existing studies have two drawbacks in revealing the determinants of systems implementation success. First, previous researches raise questions as to the appropriateness of research subjects selected. Most SCM systems are operating in the form of private industrial networks, where the participants of the systems consist of two distinct groups: focus companies and vendors. The focus companies are the primary actors in developing and operating the systems, while vendors are passive participants which are connected to the system in order to supply raw materials and parts to the focus companies. Under the circumstance, there are three ways in selecting the research subjects; focus companies only, vendors only, or two parties grouped together. It is hard to find researches that use the focus companies exclusively as the subjects probably due to the insufficient sample size for statistic analysis. Most researches have been conducted using the data collected from both groups. We argue that the SCM success factors cannot be correctly indentified in this case. The focus companies and the vendors are in different positions in many areas regarding the system implementation: firm size, managerial resources, bargaining power, organizational maturity, and etc. There are no obvious reasons to believe that the success factors of the two groups are identical. Grouping the two groups also raises questions on measuring the system success. The benefits from utilizing the systems may not be commonly distributed to the two groups. One group's benefits might be realized at the expenses of the other group considering the situation where vendors participating in SCM systems are under continuous pressures from the focus companies with respect to prices, quality, and delivery time. Therefore, by combining the system outcomes of both groups we cannot measure the system benefits obtained by each group correctly. Second, the measures of system success adopted in the previous researches have shortcoming in measuring the SCM success. User satisfaction, system utilization, and user attitudes toward the systems are most commonly used success measures in the existing studies. These measures have been developed as proxy variables in the studies of decision support systems (DSS) where the contribution of the systems to the organization performance is very difficult to measure. Unlike the DSS, the SCM systems have more specific goals, such as cost saving, inventory reduction, quality improvement, rapid time, and higher customer service. We maintain that more specific measures can be developed instead of proxy variables in order to measure the system benefits correctly. The purpose of this study is to find the determinants of SCM systems success in the perspective of vendor companies. In developing the research model, we have focused on selecting the success factors appropriate for the vendors through reviewing past researches and on developing more accurate success measures. The variables can be classified into following: technological, organizational, and environmental factors on the basis of TOE (Technology-Organization-Environment) framework. The model consists of three independent variables (competition intensity, top management support, and information system maturity), one mediating variable (collaboration), one moderating variable (government support), and a dependent variable (system success). The systems success measures have been developed to reflect the operational benefits of the SCM systems; improvement in planning and analysis capabilities, faster throughput, cost reduction, task integration, and improved product and customer service. The model has been validated using the survey data collected from 122 vendors participating in the SCM systems in Korea. To test for mediation, one should estimate the hierarchical regression analysis on the collaboration. And moderating effect analysis should estimate the moderated multiple regression, examines the effect of the government support. The result shows that information system maturity and top management support are the most important determinants of SCM system success. Supply chain technologies that standardize data formats and enhance information sharing may be adopted by supply chain leader organization because of the influence of focal company in the private industrial networks in order to streamline transactions and improve inter-organization communication. Specially, the need to develop and sustain an information system maturity will provide the focus and purpose to successfully overcome information system obstacles and resistance to innovation diffusion within the supply chain network organization. The support of top management will help focus efforts toward the realization of inter-organizational benefits and lend credibility to functional managers responsible for its implementation. The active involvement, vision, and direction of high level executives provide the impetus needed to sustain the implementation of SCM. The quality of collaboration relationships also is positively related to outcome variable. Collaboration variable is found to have a mediation effect between on influencing factors and implementation success. Higher levels of inter-organizational collaboration behaviors such as shared planning and flexibility in coordinating activities were found to be strongly linked to the vendors trust in the supply chain network. Government support moderates the effect of the IS maturity, competitive intensity, top management support on collaboration and implementation success of SCM. In general, the vendor companies face substantially greater risks in SCM implementation than the larger companies do because of severe constraints on financial and human resources and limited education on SCM systems. Besides resources, Vendors generally lack computer experience and do not have sufficient internal SCM expertise. For these reasons, government supports may establish requirements for firms doing business with the government or provide incentives to adopt, implementation SCM or practices. Government support provides significant improvements in implementation success of SCM when IS maturity, competitive intensity, top management support and collaboration are low. The environmental characteristic of competition intensity has no direct effect on vendor perspective of SCM system success. But, vendors facing above average competition intensity will have a greater need for changing technology. This suggests that companies trying to implement SCM systems should set up compatible supply chain networks and a high-quality collaboration relationship for implementation and performance.

클라우드 컴퓨팅 서비스의 도입특성이 조직의 성과기대 및 사용의도에 미치는 영향에 관한 연구: 혁신확산 이론 관점 (A Study on the Effect of the Introduction Characteristics of Cloud Computing Services on the Performance Expectancy and the Intention to Use: From the Perspective of the Innovation Diffusion Theory)

  • 임재수;오재인
    • Asia pacific journal of information systems
    • /
    • 제22권3호
    • /
    • pp.99-124
    • /
    • 2012
  • Our society has long been talking about necessity for innovation. Since companies in particular need to carry out business innovation in their overall processes, they have attempted to apply many innovation factors on sites and become to pay more attention to their innovation. In order to achieve this goal, companies has applied various information technologies (IT) on sites as a means of innovation, and consequently IT have been greatly developed. It is natural for the field of IT to have faced another revolution which is called cloud computing, which is expected to result in innovative changes in software application via the Internet, data storing, the use of devices, and their operations. As a vehicle of innovation, cloud computing is expected to lead the changes and advancement of our society and the business world. Although many scholars have researched on a variety of topics regarding the innovation via IT, few studies have dealt with the issue of could computing as IT. Thus, the purpose of this paper is to set the variables of innovation attributes based on the previous articles as the characteristic variables and clarify how these variables affect "Performance Expectancy" of companies and the intention of using cloud computing. The result from the analysis of data collected in this study is as follows. The study utilized a research model developed on the innovation diffusion theory to identify influences on the adaptation and spreading IT for cloud computing services. Second, this study summarized the characteristics of cloud computing services as a new concept that introduces innovation at its early stage of adaptation for companies. Third, a theoretical model is provided that relates to the future innovation by suggesting variables for innovation characteristics to adopt cloud computing services. Finally, this study identified the factors affecting expectation and the intention to use the cloud computing service for the companies that consider adopting the cloud computing service. As the parameter and dependent variable respectively, the study deploys the independent variables that are aligned with the characteristics of the cloud computing services based on the innovation diffusion model, and utilizes the expectation for performance and Intention to Use based on the UTAUT theory. Independent variables for the research model include Relative Advantage, Complexity, Compatibility, Cost Saving, Trialability, and Observability. In addition, 'Acceptance for Adaptation' is applied as an adjustment variable to verify the influences on the expected performances from the cloud computing service. The validity of the research model was secured by performing factor analysis and reliability analysis. After confirmatory factor analysis is conducted using AMOS 7.0, the 20 hypotheses are verified through the analysis of the structural equation model, accepting 12 hypotheses among 20. For example, Relative Advantage turned out to have the positive effect both on Individual Performance and on Strategic Performance from the verification of hypothesis, while it showed meaningful correlation to affect Intention to Use directly. This indicates that many articles on the diffusion related Relative Advantage as the most important factor to predict the rate to accept innovation. From the viewpoint of the influence on Performance Expectancy among Compatibility and Cost Saving, Compatibility has the positive effect on both Individual Performance and on Strategic Performance, while it showed meaningful correlation with Intention to Use. However, the topic of the cloud computing service has become a strategic issue for adoption in companies, Cost Saving turns out to affect Individual Performance without a significant influence on Intention to Use. This indicates that companies expect practical performances such as time and cost saving and financial improvements through the adoption of the cloud computing service in the environment of the budget squeezing from the global economic crisis from 2008. Likewise, this positively affects the strategic performance in companies. In terms of effects, Trialability is proved to give no effects on Performance Expectancy. This indicates that the participants of the survey are willing to afford the risk from the high uncertainty caused by innovation, because they positively pursue information about new ideas as innovators and early adopter. In addition, they believe it is unnecessary to test the cloud computing service before the adoption, because there are various types of the cloud computing service. However, Observability positively affected both Individual Performance and Strategic Performance. It also showed meaningful correlation with Intention to Use. From the analysis of the direct effects on Intention to Use by innovative characteristics for the cloud computing service except the parameters, the innovative characteristics for the cloud computing service showed the positive influence on Relative Advantage, Compatibility and Observability while Complexity, Cost saving and the likelihood for the attempt did not affect Intention to Use. While the practical verification that was believed to be the most important factor on Performance Expectancy by characteristics for cloud computing service, Relative Advantage, Compatibility and Observability showed significant correlation with the various causes and effect analysis. Cost Saving showed a significant relation with Strategic Performance in companies, which indicates that the cost to build and operate IT is the burden of the management. Thus, the cloud computing service reflected the expectation as an alternative to reduce the investment and operational cost for IT infrastructure due to the recent economic crisis. The cloud computing service is not pervasive in the business world, but it is rapidly spreading all over the world, because of its inherited merits and benefits. Moreover, results of this research regarding the diffusion innovation are more or less different from those of the existing articles. This seems to be caused by the fact that the cloud computing service has a strong innovative factor that results in a new paradigm shift while most IT that are based on the theory of innovation diffusion are limited to companies and organizations. In addition, the participants in this study are believed to play an important role as innovators and early adapters to introduce the cloud computing service and to have competency to afford higher uncertainty for innovation. In conclusion, the introduction of the cloud computing service is a critical issue in the business world.

  • PDF

세계 무인항공기 운용 관련 규제 분석과 시사점 - ICAO, 미국, 독일, 호주를 중심으로 - (Analysis and Implication on the International Regulations related to Unmanned Aircraft -with emphasis on ICAO, U.S.A., Germany, Australia-)

  • 김동욱;김지훈;김성미;권기범
    • 항공우주정책ㆍ법학회지
    • /
    • 제32권1호
    • /
    • pp.225-285
    • /
    • 2017
  • 무인항공기 규제 법률은 ICAO의 경우 1944년 '시카고협약'을 기준으로 'RPAS manual(2015)'에 상세하게 규정하고 있으며, 미국의 경우 '연방항공규칙 (14CFR), Public Law (112-95)', 독일의 경우 EASA의 Regulation (EC) No.216/2008을 기본으로 150kg 미만의 무인항공기의 경우 항공운송법, 항공운송명령, 항공운송허가명령 (무인항공기 운영규칙에 관한 법률에 의한 개정), 호주의 경우 '민간항공법 (CAA 1998), 민간항공규칙 101장 (CASR Part 101)'로 정하고 있다. 공통적으로 이러한 법률들이 규제하는 대상에 여가선용 목적의 모형항공기는 제외하고 있으며, 반드시 무인항공기를 통제할 수 있는 조종자를 두어야 하는데, 이때 조종자란 항공 기내가 아닌 지상에서의 조종과 통제를 하는 사람을 의미한다. 또한 무인항공시스템이라는 구조 하에서 조종자는 물론이고 무인항공기를 운용에 필요한 모든 관리 즉, 법률의 규정이 정하는 범위 안에서 안전하고 효율적으로 시스템을 운용하기 위한 모든 관리를 포함하는 것을 의미한다. 구체적 운용방식에 관하여는 각 나라는 25kg 이하의 항공기로 분류하여 규정하고, 호주와 독일은 그 이하의 중량에서 다시 세분화하여 규정하고 있다. ICAO는 시카고협약 제6부속서에 따라 상업적운용을 포함하여 일체의 일반항공 운용을 규정하고 있으며 RPAS 운용의 경우에도 적용된다. 다만, RPA를 이용한 여객운송은 제외하고 있다. RPA의 운용범위가 타국의 영공을 포함하는 경우 비행일 7일 이전에 해당 국가의 특별허가를 요건으로 하며, 이때 비행계획서를 함께 제출하여야 한다. 미국은 연방항공규칙 107장에 따라, 비레저용 소형무인기는 책임조종자 또는 관찰자의 시야 범위 내에서 (주간에만) 지표 또는 수면으로부터 122m(400피트)까지, 시속 161km (87노트) 이내로 운용 가능하다. 소형무인기는 다른 항공기에 경로를 양보해야 하고, 위험물질을 수송하거나 1인이 동시에 2대 이상의 무인기를 운용하는 것은 금지된다. 독일의 경우 무인항공기 운영규칙에 관한 법률에 따라 무인항공시스템과 무인모형항공기에 관한 규정(여가선용 용도 제외)은 공중충돌 방지의무와 더불어 지상의 안전 및 개인의 사생활 보호도 함께 고려되어 2017년 3월 제정되었다. 5kg 이하의 상업용 무인항공기는 종전의 규제규정을 완화하여 더 이상 허가를 요건으로 하지 않지만, 중량에 상관없이 모든 무인항공기는 지속적인 감시자와 조종자의 통제 범위 내에서 100m이하의 높이에서만 자유롭게 운용되어질 수 있다. 호주는 2001년 무인항공기를 규제한 첫 국가로 ICAO 및 FAA, EASA 등의 무인항공기 관련법제에 영향을 주었다. 2016년 개정을 통하여 저위험도로 고려되는 무인항공기의 운용에 대하여 활용성을 증대시키고자 '배제 무인항공기'라는 항목을 추가하여 규제조건을 완화시켰으며, 이에 해당하는 경우 상업적 목적이라 할지라도 특별한 허가 없이 운용할 수 있도록 하였다. 나아가 현재 규제의 유연성을 위하여 새로운 표준 매뉴얼에 대하여 논의 중이다.

  • PDF

통일 한국의 적정 군사력에 관한 연구 - 분쟁 시나리오와 상대적 균형전략을 중심으로 - (A Study on Appropriate Military Strength of Unified Korea (Focused on relative balance strategy and conflict scenario))

  • 홍봉기
    • 안보군사학연구
    • /
    • 통권13호
    • /
    • pp.687-738
    • /
    • 2016
  • To prepare for the complicated international relationship regarding Korean Peninsula after reunification, this thesis started off with the awareness that Unified Korea should build its international posture and national security at an early stage by determining its appropriate military strength for independent defense and military strategies that Unified Korea should aim. The main theme of this thesis is 'The research on appropriate military strength of the Unified Korean military'. To derive appropriate military strength of Unified Korea, this research focuses on conflict scenario and relative balance strategy based on potential threats posed by neighboring countries, and this is the part that differentiates this research from other researches. First of all, the main objective of the research is to decide appropriate military strength for Unified Korea to secure defense sufficiency. For this, this research will decide efficient military strategy that Unified Korea should aim. Than by presuming the most possible military conflict scenario, this research will judge the most appropriate military strength for Unified Korea to overcome the dispute. Second, after deciding appropriate military strength, this research will suggest how to operate presumed military strength in each armed force. The result of this thesis is as in the following. First, Unified Korea should aim 'relative balance strategy'. 'Relative balance strategy' is a military strategy which Unified Korea can independently secure defense sufficiency by maintaining relative balance when conflicts occur between neighboring countries. This strategy deters conflicts in advance by relative balance of power in certain time and place. Even if conflict occurs inevitably, this strategy secures initiative. Second, when analyzing neighboring countries interest and strategic environment after unification, the possibility of all-out war will be low in the Korean Peninsula because no other nation wants the Korean Peninsula to be subordinated to one single country. Therefore appropriate military strength of the Unified Korean military would be enough when Unified Korea can achieve relative balance in regional war or limited war. Third, Northeast Asia is a region where economic power and military strength is concentrated. Despite increasing mutual cooperation in the region, conflicts and competition to expand each countries influence is inherent. Japan is constantly enhancing their military strength as they aim for normal statehood. China is modernizing their military strength as they aspire to become global central nation. Russia is also enhancing their military strength in order to hold on to their past glory of Soviet Union as a world power. As a result, both in quality and quantity, the gap between military strength of Unified Korea and each neighboring countries is enlarged at an alarming rate. Especially in the field of air-sea power, arms race is occurring between each nation. Therefore Unified Korea should be equipped with appropriate military strength in order to achieve relative balance with each threats posed by neighboring countries. Fourth, the most possible conflicts between Unified Korea and neighboring countries could be summarized into four, which are Dokdo territorial dispute with Japan, Leodo jurisdictional dispute with China, territorial dispute concerning northern part of the Korea Peninsula with China and disputes regarding marine resources and sea routes with Russia. Based on those conflict scenarios, appropriate military strength for Unified Korea is as in the following. When conflict occurs with Japan regarding Dokdo, Japan is expected to put JMSDF Escort Flotilla 3, one out of four of its Japan Maritime Self-Defense Force Escort Fleet, which is based in Maizuru and JMSDF Maizuru District. To counterbalance this military strength, Unified Korea needs one task fleet, comprised with three task flotilla. In case of jurisdictional conflict with China concerning Leodo, China is expected to dispatch its North Sea fleet, one out of three of its naval fleet, which is in charge of the Yellow Sea. To response to this military action, Unified Korea needs one task fleet, comprised with three task flotilla. In case of territorial dispute concerning northern part of the Korean Peninsula with China, it is estimated that out of seven Military Region troops, China will dispatch two Military Region troops, including three Army Groups from Shenyang Military Region, where it faces boarder with the Korean Peninsula. To handle with this military strength, Unified Korea needs six corps size ground force strength, including three corps of ground forces, two operational reserve corps(maneuver corps), and one strategic reserve corps(maneuver corps). When conflict occurs with Russia regarding marine resources and sea routes, Russia is expected to send a warfare group of a size that includes two destroyers, which is part of the Pacific Fleet. In order to balance this strength, Unified Korea naval power requires one warfare group including two destroyers. Fifth, management direction for the Unified Korean military is as in the following. Regarding the ground force management, it would be most efficient to deploy troops in the border area with china for regional and counter-amphibious defense. For the defense except the border line with china, the most efficient form of force management would be maintaining strategic reserve corps. The naval force should achieve relative balance with neighboring countries when there is maritime dispute and build 'task fleet' which can independently handle long-range maritime mission. Of the three 'task fleet', one task fleet should be deployed at Jeju base to prepare for Dokdo territorial dispute and Leodo jurisdictional dispute. Also in case of regional conflict with china, one task fleet should be positioned at Yellow Sea and for regional conflict with Japan and Russia, one task fleet should be deployed at East Sea. Realistically, Unified Korea cannot possess an air force equal to neither Japan nor China in quantity. Therefore, although Unified Korea's air force might be inferior in quantity, they should possess the systematic level which Japan or China has. For this Unified Korea should build air base in island areas like Jeju Island or Ullenong Island to increase combat radius. Also to block off infiltration of enemy attack plane, air force needs to build and manage air bases near coastal areas. For landing operation forces, Marine Corps should be managed in the size of two divisions. For island defense force, which is in charge of Jeju Island, Ulleung Island, Dokdo Island and five northwestern boarder island defenses, it should be in the size of one brigade. Also for standing international peace keeping operation, it requires one brigade. Therefore Marine Corps should be organized into three divisions. The result of the research yields a few policy implications when building appropriate military strength for Unified Korea. First, Unified Korea requires lower number of ground troops compared to that of current ROK(Republic of Korea) force. Second, air-sea forces should be drastically reinforced. Third, appropriate military strength of the Unified Korean military should be based on current ROK military system. Forth, building appropriate military strength for Unified Korea should start from today, not after reunification. Because of this, South Korea should build a military power that can simultaneously prepare for current North Korea's provocations and future threats from neighboring countries after reunification. The core of this research is to decide appropriate military strength for Unified Korea to realize relative balance that will ensure defense sufficiency from neighboring countries threats. In other words, this research should precisely be aware of threats posed by neighboring countries and decide minimum level of military strength that could realize relative balance in conflict situation. Moreover this research will show the path for building appropriate military strength in each armed force.

  • PDF