• 한국건축시공학회지
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• 제13권1호
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• pp.75-83
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• 2013

The prevention of safety accidents can be achieved through Harvey's 3E's: Engineering, Enforcement, and Education. On construction sites, however, enforcement and engineering did not prove to be valid ways of reducing the number of safety accidents, as enforcement and engineering have failed to overcome and/or supplement the realistic limits regarding the relatively lower education levels of construction workers and the communication issues with foreign workers. On the other hand, safety education can enable the advancement of safety management by enhancing the educational contents and their methods of delivery. To improve the efficiency of safety education via educational contents, this research conducted a qualitative and quantitative analysis on the validity of the newly educational contents by overviewing possible accident types in different work phases. Of the accident types identified by the qualitative analysis, neither highly important nor insignificant accident types were found, yet all the suggested types are found to be required. In addition, this study did not find any significant differences in the occurrence probability of safety accidents related to the level of importance of each type of accident. The qualitative analysis in this research verified that the suggested accident types can be valid, educational material that can take into account future safety accidents.

• 한국재난정보학회 논문집
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• 제17권3호
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• pp.427-441
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• 2021

연구목적: 본 연구는 군에서 가장 많이 발생하는 교통사고의 예방을 위해 부대별로 교통사고가 발생할 확률을 사전에 예측하는 모형의 개발 방안을 제시하는 것이다. 연구방법: 이를 위해 CRISP-DM(Cross Industry Standard Process for Data Mining) 방법론을 적용하였다. CRISP-DM 프로세스는 6단계로 구성되어 있고, 각 단계는 Waterfall Model처럼 일방향으로 구성되어 있지 않고 단계 간 피드백을 통하여 단계별 완성도를 높이게 되어 있다. 연구결과:전체 집단을 대상으로 기 구축된 사고조사 데이터와 동일한 데이터 세트(data set)를 구축하여 모델링한 결과 분류기준 0.5로 했을 때, 교통사고예측을 위한 모형의 정확도, 특이도, 민감도, AUC에서 의미있는 결과치를 도출하였다. 결론: 예측모형을 설계하는 과정에서 데이터의 부족으로 인해 의미 있는 예측값을 얻기 어려운 문제점이 확인되었다. 이를 해결하기 위해 합리적 추론이 가능한 데이터 세트(data set)를 재구성 및 확대하여 데이터 부족을 해소하고, 이를 활용한 예측모형을 설계할 수 있는 방법론을 제시하였다.

• 한국군사과학기술학회지
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• 제25권1호
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• pp.82-95
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• 2022

Since military weapon accidents or breakdowns are directly linked to enormous damage, it is important to analyze the causes of weapons system accidents. Recently, in the defense sector, there have been cases in which budget has been saved through analysis of the causes of frequent breakdowns and improvement activities that have occurred in the process of operating weapon systems since 2015. But due to the nature of the defense sector, it is not easy to collect data and studies on weapons system accidents have been insufficient so far. Therefore, this study aims to investigate the causes and types of military weapon accidents by collecting military weapon accident data for military weapon systems and analyzing trends by weapon system classification through the analysis process. It analyzes statistically and visually through social network analysis, NodeXL. It is expected that this study will help improve the stability of the weapon system by reducing the number of military weapon accidents and failures.

• Nuclear Engineering and Technology
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• 제56권1호
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• pp.167-179
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• 2024

This study explores the feasibility of employing (U, Th)-based accident tolerant fuels (ATFs), specifically (_0.8UO₂, _0.2ThO₂), (_0.8UN, _0.2ThN), and (_0.8UC, _0.2ThC). The investigation assesses the overall performance of these proposed fuel materials in comparison to the conventional UO₂, focusing on deep neutronic and thermal-hydraulic (Th) analyses. Neutronic analysis utilized the MCNPX code, while COMSOL Multiphysics was employed for thermal-hydraulic analysis. The primary objective of this research is to overcome the limitations associated with traditional UO₂ fuel by exploring alternative fuel materials that offer advantages in terms of abundance and potential improvements in performance and safety. Given the limited abundance of UO₂, long-term sustainable nuclear energy production faces challenges. From a neutronic standpoint, the U-Th based fuels demonstrated remarkable fuel cycle lengths, except (_0.8UN, _0.2ThN), which exhibited the minimum fuel cycle length and, consequently, the lowest fuel burn-up. Regarding thermal-hydraulic performance, (_0.8UN, _0.2ThN) exhibited outstanding performance with significant margins against fuel melting compared to the other materials. Overall, when considering the integrated performance, the most favourable results were obtained with the use of the (_0.8UC, _0.2ThC) fuel configurations. This study contributes valuable insights into the potential benefits of (U, Th)-based ATFs as a promising avenue for enhanced nuclear fuel performance.

• 유통과학연구
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• 제14권3호
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• pp.5-10
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• 2016

Purpose - This paper analyzed the accident of drone and related insurance goods which can be coverable with regard to drone accident. The study range is limited in the owner's care, custody, and the control of drone in South Korea, but military area and law and regulation of the drone would be exceptional. Research design, data, and methodology - With regard to drone's flight, drone can make possible risks and can give severe damage to the people. To carry out this research, literature survey and review such as journal, thesis and publications were adopted. Results - As for the insurance coverage from drone's accident involved in the purpose of business, insurance coverage depends on 'commercial general liability insurance'. However, in case of personal hobby including leasure intention, insurance coverage depends on 'living liability insurance'. Conclusions - From a drone's accident, operator and owner of the drone may face the property damage to the drone itself, and then can give severe damage or loss to the people such as physical injuries and property damage. Peoples should be concerned about having the awareness of drone's accident with insurance coverage.

• 한국국방경영분석학회지
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• 제33권2호
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• pp.1-15
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• 2007

현재 항공작전은 작전에 영향을 미치는 각종 장애요인들을 고려하지 않고 있다. 보다 효율적인 항공전력운용을 위해서 이들 장애요인들을 예상하고 대비한다면 좀 더 실질적인 항공작전 계획수립에 도움이 될 것이다. 본 연구는 이들 장애요인들이 항공전력 산출에 미치는 영향을 파악하여 항공작전 임무수행 능력, 가용전력 파악을 통해 효과적인 진력 운용에 대해 분석하였다. 이를 위하여 시뮬레이션 분석 도구인 AREA 10.0을 사용하였다. 본 연구에서는 항공전력 산출의 장애요인을 기상, 화생방 상황, 항공기 고장, 적 교전 손실의 4가지로 한정하여 분석하였다. 또한 민감도 분석을 통해 전천후 부장 사용 및 화생방 상황 증가에 따른 전력 산출의 변화를 분석하여 전시 항공작전 장애요인이 전력산출에 끼치는 영향에 대해서 연구하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.335-336
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• 2023

The military has adopted and implemented risk assessment since 2013 to reduce fatalities and accident rates at construction sites. However, risk assessment is carried out as a voluntary preventive activity and is maintained as a superficial administrative process for owners. Risk assessment must comply with the Occupational Safety and Health Act and the Enforcement Guideline of Risk Assessment. However, the scope of the assessment covers many industries, including manufacturing and distribution, making it difficult to apply to construction sites. As a result, the guidelines are interpreted and applied differently at each construction site. This study aims to improve the risk assessment system so that it is applicable to construction projects and proposes the improvement of the risk assessment system by analyzing the current status of serious accidents in military construction projects.

• 한국국방경영분석학회지
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• 제24권1호
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• pp.41-57
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• 1998

Since the aircraft has a property of moving in the three-dimensional space, it may cause personally and financially critical damage in the case of an accident. Among the causes of aircraft accident, human factor has occupied about 70% of all accidents. Specially, fatigue among human's problems has been studied earlier than any other factor. Fatigue has been the cause of 75% of accidents that are related to human factor. So many studies have been conducted. But the direction of these studies mainly attach importance to the sleep loss and circadian rhythm. Limitation for flight time of ICAO is 8 hours per day, civil airlines in domestic line also adopt the limitation. But this rule is not based on human's performance but compromise between labor and management. The long-haul flight brings about a mental block to pilot. This mental block decreases performance of pilot and loses a lot of important information. So this may cause many accidents. This paper is to offer optimal flight time according to the amount of fatigue due to increasing flight time. The optimal flight time is searched through the field experiment. The experiment has adopted two methods. One is to examine pilot's objective fatigue accumulation rate through the critical fusion frequency, and another is to investigate pilot's subjective fatigue feeling through the fatigue subjective symptoms investigation table.

• 대한수사과학회지
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• 제3권1호
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• pp.5-24
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• 2008

The necessity for the investigation of death occurred in military services has no differences to the death of civilians. But the death of military service members under the Universal Conscription System in Korea has special considerations because of hard accessibility by the bereaved family and closed environment of the army. The analysis of the death occurred during military service was carried out and the advanced death investigation system to prevent the death was proposed to prevent the declination of fighting spirit and efficiency and also to restore the solid support by the people. The deaths in the period 1995~2006 were 330 persons in 1995, 359 persons in 1996 and were decreased to 135 persons in 2006. The death caused by safety accidents including vehicle accident, drowning, fall were 56% and by military crimes including suicide, arms, homicide were 44%. The numbers of suicides were 108 persons in 1995 and were decreased to 79 persons in 2006. The numbers of suicides were decreased constantly, but the ratio of suicide to death were increased, so the suicide prevention is more important. The autopsy ratio was increased to 51.5% in 2005 and was much higher compared to the ratio for civilians. The main reasons of complaints by the bereaved family were for regaining reputation, death in harness and reinvestigation of death. The proposals for the advanced death investigation system were as follows. The unnatural deaths including the obvious accidental deaths and homicides have to be defined by the rules. The human resources to perform the autopsy can be supported by the forensic pathologists from medical school. The special training and quality assurance programs are needed for the crime scene investigator. To regain the impaired reputation from the suicide and to support the bereaved family has to be discussed by the government.

• 정보보호학회논문지
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• 제22권3호
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• pp.575-584
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• 2012

군의 정보화, 과학화 추진에 따른 환경 변화에 따라 기존 수작업, 오프라인 중심의 제반 군사보안 업무도 효율적이고 체계적인 업무 수행을 지원할 수 있도록 변화와 발전이 필요하다. 이에 본 연구에서는 주요 군사보안 업무 분야에 대한 실태 및 문제점 분석과 미국, 영국 등의 사례 분석을 기반으로, 주요 군사보안 업무를 자동화, 정보화하기 위한 국방통합보안시스템 구축 표준 Model을 제시하였다. 표준 Model은 통합보안체계, 비밀관리시스템, 인원출입 시스템, 차량출입시스템, 첨단경계시스템, 테러 예방시스템 및 보안사고분석시스템 등의 단위 시스템으로 구성되며, 현재 가용한 기술 및 시스템을 기반으로 제안하였는데, 이를 각급부대에 적용할 경우 군사보안 발전에 기여할 것으로 기대된다.