• 한국건축시공학회지
• /
• 제21권5호
• /
• pp.469-481
• /
• 2021

공사금액 1억이상 120억 미만 중·소규모 건설현장은 전문지도기관의 기술지도를 받아야 한다. 최근 기술지도의 계약 주체가 시공자에서 발주자로 변경됨에 따라 예상되는 기술지도 부실을 방지하기 위해 기술지도 대가를 산정하는 방법을 제안하였다. 대상 건설공사를 공사금액에 따라 4개 구간으로 단순화하고, 구간별 기술지도 담당자의 일 지도횟수와 기술지도 담당자의 최소 기술 등급을 제한하고 엔지니어링사업대가를 적용하여 기술지도 1회당 대가를 산정하는 방법을 제안하였으며, 제안 방법은 설문에서 도출된 현재 형성된 일반적인 대가와 K2B 분석 결과 등을 잘 반영하므로 기술지도 대가 가인드라인 수립에 적용될 수 있다고 판단된다.

• 대한안전경영과학회지
• /
• 제18권2호
• /
• pp.19-27
• /
• 2016

Safety accident rate of small-medium construction site is high. because of lack of safety management system, lack of safety management capacity, lack of investment for safety, Owner's insufficient awareness about safety. In order to improve this, Currently in Occupational Safety and Health Act, Construction site of amounts more than 300 million won less than 120 billion (architectural),150 billion won(civil) mandatory subject to the technical guidance on construction accident prevention. Context of construction accident causes with construction accident rate relationship analysis and case analysis of technical guidance, through a survey of stakeholders in the technical guidance drawn the problems of the construction accident prevention technical guidance system and ways to improve on this.

• 대한안전경영과학회지
• /
• 제18권4호
• /
• pp.47-55
• /
• 2016

Recently, industrial accidents rate has been gradually decreasing due to the development of safety management methods, but until now, the accident rate in the construction sector is higher than other industries. Large-scale construction sites are operating systematic safety systems to reduce industrial accidents. However, small and medium sized construction sites do not have systematic safety system and lack safety management ability, so that disaster is not reduced compared with large scale construction site. As a result, disaster prevention technology instruction system has been implemented to reduce the disasters of small and medium scale construction sites. However, in the case of a small construction site less than 2 billion won, there is little decrease in the accident rate, and in some cases, the accident rate increases. After the technical guidance system has been implemented, it is necessary to identify the performance and problems of implementation and to improve its effectiveness. In this study, we suggest the improvement plan to improve the efficiency of the technical guidance system by analyzing the problems and actual conditions of technical guidance operation in small and medium sized construction work sites.

• 한국건설관리학회논문집
• /
• 제19권6호
• /
• pp.79-85
• /
• 2018

정부와 안전보건공단에서는 건설현장의 안전사고 저감을 위하여 감독 점검, 기술지도 재정지원 등의 안전활동을 지속적으로 수행하여 왔으나, 건설현장의 재해자수는 매년 증가추세에 있으며, 특히 소규모 건설공사를 위주로 전체 재해자수의 80%이상을 차지하고 있다. 본 연구에서는 소규모 건설공사 현장에서의 안전 보건관리의 이행현황을 조사하고 해당 사업장에 정부의 적정한 기술지도 방안을 마련할 필요성이 있으며, 소규모 건설공사 현장에서의 재해를 줄이고 기술지도사업의 실효성을 확보하기 위한 건설현장에 부합하는 기술지도 최적안을 개발하는 것을 목적으로 한다.

• 한국군사과학기술학회지
• /
• 제5권1호
• /
• pp.96-106
• /
• 2002

Many modern guided weapon systems employ sophisticated target sensors as well as powerful computing systems. Due to such advanced features, they are required to achieve better guidance accuracy, and at the same time other guidance objectives for better weapon effectiveness and survivability. In this paper, we overview some of the technical considerations in such advanced guidance algorithm development, and briefly look at some related research works. More specifically, we discuss impact angle control, time-varying nature of the guidance system, time-to-go estimation, guidance loop stability, effect of autopilot lag and physical limitations in control variables, parasitic paths in guidance loops, etc. We also briefly look at some advanced concepts such as integrated guidance and control loop design, target adaptive guidance, guidance law development based on dual control concept, and terminal evasive maneuver.

• 대한공업교육학회지
• /
• 제40권2호
• /
• pp.22-43
• /
• 2015

이 연구의 목적은 공업계 고등학교 전문교과 교사의 역할에 대한 학생들의 기대를 분석하는 것이다. 이 연구의 모집단은 공업계 고등학생이며, 472명의 공업계 고등학생을 조사대상으로 선정하였다. 자료수집은 우편조사를 통하여 2015년 6월 1일부터 6월 23일까지 이루어졌으며, 회수된 433부의 설문지 중 불성실 응답을 제외하고 428부를 최종분석에 활용하였다. 이 연구의 결과는 다음과 같았다. 첫째, 공업계 고등학생들은 전공 이론교과 수업방식으로 학생들의 수준을 고려한 수업방식을 가장 원했으며, 선호하는 실습 수업방식은 학과 계열에 따라 달랐다. 그리고 실습 수업시 안전지도 방법으로는 선생님께서 수시로 지도해 주는 방법을 가장 원했다. 둘째, 공업계 고등학생들은 교사의 생활지도시에 인성지도에 가장 관심을 가져주길 희망하였으며, 잘못한 행동에 대한 지도방법으로 차별하지 않고 대해 주길 희망하였다. 그리고 상담 주제로서 진로를 가장 원했으며, 상담시 교사가 안내자의 역할을 해주길 기대하였다. 셋째, 공업계 고등학생들은 교사의 학급경영시 화목한 학급 분위기 조성을 위해 노력해 주길 가장 희망하였으며, 교사가 학급과 학생들에게 애정을 갖고 운영해주길 희망하였다. 그리고 학생들과 친해지는 방법으로 학생들과 편하게 자주 농담을 하는 방법을 가장 희망하였다. 넷째, 공업계 고등학생들이 가장 희망하는 진로지도 내용으로는 취업과 진학 모두이었으며, 취업을 위한 상담시 학생들의 적성을 가장 고려해 주길 희망하였으며, 취업지도시 직업에 관한 정보를 가장 얻고 싶어 했다.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
• /
• pp.116-117
• /
• 2018

The government and the Korea Occupational safety & Health Agency have continuously carried out safety activities such as supervision, inspection, technical guidance and financial support in order to reduce safety accidents at the construction site. However, the number of disasters at construction sites is increasing every year. So analyze the results of the supervision and inspection of the Ministry of Employment and Labor, the projects related to the small-scale construction work of the Safety and Health Corporation, and the technical guidance project of the disaster prevention technology guidance organization. It is also necessary to establish an improvement plan for the disaster reduction of the small-scale construction work site for this project.

• 한국안전학회지
• /
• 제29권5호
• /
• pp.104-109
• /
• 2014

More than 76% of occupational accidents occur in small and medium sized enterprises(SME) employing less than 50 workers, due to the lack of safety and health systems, and carelessness of workers and owners. Timely Technical Guidance(TTG) project of Korea Occupational Safety & Heath Agency(KOSHA) for SME was initiated to analyze and inform accident causes just after accidents occur. Improvement direction of TTG project is suggested through situation and performance analysis on TTG services conducted in 2012. KOSHA provided TTS services on 15,571 SMEs(suffering at least one accident in 2012), through which the working day losses from recurrence resulted in 19.0%p, 14.5%p and 31.3%p decreases in manufacturing, services and construction businesses, respectively.

• 대한안전경영과학회지
• /
• 제16권3호
• /
• pp.443-450
• /
• 2014

The industrial accident rate has been steadily decreased by making all efforts for the prevention of accidents after enacting Occupational Health and Safety Act in 1981. However, ordinary typed industrial accidents still occur in small and medium sized enterprises(SME). Timely Technical Guidance(TTG) project of Korea Occupational Safety & Heath Agency(KOSHA) for SME's was initiated to visit and provide the analysis and control of industrial accidents by the staffs of KOSHA as soon as possible after accidents occurred. This study is conducted to analyze the questionnaire survey for employers, workers and TTG personnel of KOSHA with being evaluated positively whether the demonstration project of TTG has been executed consistently. However, it is suggested that the understanding of TTG project and legal support are necessary for the establishments, and the development of a variety data and lots of available contents is necessary to increase satisfaction of the TTG project. The accident rate of SME's which are employed less than 50 workers is expected to be largely decreased with applying the control and improvement over this study with maintaining and developing TTG technology.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권17호
• /
• pp.7897-7903
• /
• 2015

Background: To explored the value of 3D C-arm CT (CACT) guidance system in performing radiofrequency ablation (RFA) following transarterial chemoembolizationon (TACE) for hepatocellular carcinomas. Materials and Methods: RFA of hepatocellular carcinomas (HCC) were performed on 15 patients (21 lesions) with the assistance of CACT guidance system. Technical success, procedure time, complications and patient radiation exposure were investigated. The puncture performance level was evaluated on a five-point scale (5-1: excellent-poor). Complete ablation rate was evaluated after two months follow-up using enhanced CT scans. Results: The technical success rate of RFA procedure under CACT navigation system was 100 %. Mean total procedure time was $24.24{\pm}6.53min$, resulting in a mean effective exposure dose of $15.4{\pm}5.1mSv$. The mean puncture performance level rated for CACT guided RFA procedure was $4.87{\pm}0.35$. Complete ablation (CA) was achieved in 20 (95.2%) of the treated 21 tumors after the first RFA session. None of patients developed intra-procedural complications. Conclusions: 3D CACT guidance system enables reliable and efficient needle positioning by providing real-time intraoperative guidance for performing RFA on HCCs.