목적 : 본 연구는 장애인의 낙상 사고경험 및 장애유형과 독립적인 일상생활활동 간의 관계를 규명하고, 장애인의 낙상 예 방 및 회복을 위한 지원과 교육의 필요성을 강조하며, 효과적인 프로그램 개발의 기초자료를 제공함으로써 장애인의 삶의 질 향상에 기여하고자 하였다. 연구방법 : 한국장애인개발원의 장애인삶 패널조사 4차 데이터(2021년)를 활용하여 장애인의 낙상 사고경험, 장애유형, 독 립적인 일상생활활동 항목을 분석하였다. 장애인 3,595명의 조사 자료를 분석하였으며 일반적 특성, 낙상 사고경험에 따른 독립적인 일상생활활동의 평균 차이를 확인하기 위해 독립표본 T-검정, 일원 분산분석을 실시하였다. 주요 변수들의 상관 관계를 알기 위해 피어슨 상관분석을 진행하였으며 이후 낙상 사고경험과 일반적 특성 중 장애유형이 독립적인 일상생활활 동에 미치는 영향력을 알아보기 위해 단순선형회귀분석과 다중선형회귀분석을 실시하였다. 추가로 독립적인 일상생활활동 에 대한 장애유형과 낙상 사고경험의 상호작용 효과를 알아보기 위해 이원 분산분석을 실시하였다. 결과 : 성별을 제외한 일반적 특성과 낙상 사고경험 모두에서 독립적인 일상생활활동의 평균 차이가 나타났으며, 장애유 형과 낙상 사고경험이 각각 독립적인 일상생활활동에 유의한 영향을 미치는 것으로 확인되었다. 추가로 독립적인 일상생 활활동에 대해 장애유형과 낙상 사고경험의 유의미한 상호작용 효과가 있는 것으로 나타났다. 결론 : 본 연구는 장애인의 낙상 사고경험, 장애유형과 독립적인 일상생활활동 간의 유의미한 관계를 확인하였다. 연구 결 과는 장애유형별 특성을 고려한 개인별 맞춤형 지원 정책 및 낙상 예방 방안의 필요성을 시사하며, 궁극적으로 장애인의 독립적 일상생활활동을 위한 정책적 개입의 중요성을 강조한다. 향후 보다 포괄적인 연구를 통해 장애인의 삶의 질 향상 에 기여할 것으로 기대된다.

This study evaluates the occupational accident risks of anchovy boat seine fishery in Korea. Using Bayesian network modeling within the framework of the Formal Safety Assessment (FSA) proposed by the International Maritime Organization (IMO), data from 508 accident compensation claims between 2018 and 2022 were analyzed. Accidents were categorized into processes (sailing, fishing, maintenance, loading/unloading, and catch processing) and risk factors (hull and working environment, fishing gear and equipment, machinery and equipment, weather and external conditions, and processing equipment). The analysis revealed significant risks associated with fishing processes and hull-related factors. Fishing accounted for 36.42% of all accidents with trips/slips being the most frequent type (29.13%). Bayesian network analysis showed that trips/slips accidents during fishing posed the highest risks (0.001100). The risk of fishing operations was 4.60 times higher than sailing and 30.00 times higher than loading/unloading. The findings indicate that risks vary significantly depending on the processes and risk factors involved. As risk assessments mandated by the 2025 revision of Korean fishing safety laws are expected to remain simple and qualitative, this study underscores the necessity of incorporating quantitative approaches to enhance the reliability and effectiveness of safety management practices.

To understand effects of the compositions of marine macrobenthic communities on carbon storage in subtidal rocky habitat, a diving survey was conducted at Aewol and Biyangdo stations in the northwestern regions of Jeju Island in the summer of 2023. Cluster analysis revealed no significant differences in community composition between the two stations. The mean biomass of the dominant species was Cnidaria (2,047.4 gwwt m-2) of macroinvertebrate, followed by Rhodophyta (745.4 gwwt m-2) of seaweed in studied areas. According to similarity percentage analysis, Alveopora japonica and Ecklonia cava were major contributors to the communities in Aewol, whereas diverse marine organisms, including these two species, contributed to the community in Biyangdo. The estimated mean carbon storage by benthic communities derived from their carbon contents in surveyed areas was 202.7 gC m-2, with variations reflecting differences in community compositions. The biomass of Cnidaria, dominated by A. japonica, showed a positive correlation with carbon storage, whereas the biomass of Rhodophyta, primarily composed of coralline algae, showed a negative correlation. These variations in carbon storage among marine communities may result from species-specific carbon assimilation patterns, survival strategies, marine carbon cycling, and intra-community interactions such as competition and feeding.

This study aimed to develop a systematic process for identifying components that need to be changed to reduce the Head Injury Criterion (HIC) during pedestrian headform tests. Through simulation and analysis, it was confirmed that the hood, hinge, hinge plate, cowl, fender, and fender bracket significantly influence HIC15. The study identified the specific impact of each component on HIC15, allowing for targeted improvements. The proposed process demonstrated superior performance compared to single-component optimization, yielding more significant reductions in HIC15. Multiple vehicle models were tested, confirming the process's effectiveness in consistently lowering HIC15 values.

This study quantitatively analyzes risks of industrial incidents to fisher on overseas tuna purse seiners and long liners. A Bayesian network is employed to analyze 478 cases of industrial incidents, comprising 401 cases from purse seiners and 77 cases from long liners, reported from 2019 to 2022. The highest risk of industrial incidents on purse seiners is attributed to diseases. Excluding diseases, risks are the highest during fishing: 5.31 times higher during catch handling, 2.05 times higher during maintenance, and 2.38 times higher during loading and unloading. The risk of industrial incidents caused by the hull is 9.50 times higher than those caused by fishing gear, 4.59 times higher than those caused by machinery, and 3.61 times higher than those caused by the caught fish. Among the types of industrial incidents, slips are the highest: 2.58 times higher than industrial incidents caused by being bump, 3.74 times higher than those caused by hit, and 3.94 times higher than those caused by imbalance and overexertion. For long liners, most industrial incidents are concentrated in diseases, with dental, musculoskeletal, skin, and respiratory diseases being the primary types of industrial incidents identified. This study aims to propose reduction measures for reducing the high-risk form of industrial incidents, specifically slips, and to present health management strategies for preventing diseases among fisher on overseas tuna fishing vessels. By addressing these aspects, this study seeks to contribute to the safety and sustainability of the overseas tuna fishing industry.

본 연구는 중·고교 엘리트 역도 선수들을 대상으로 훈련에 의한 성장기 체력 및 운동기능 발달 수준을 평가하여 종합적인 이해를 토대로 경기력 향상을 위한 효과적인 훈련 및 관리방안을 제시하기 위해 수행되었다. 연구의 목적을 달성하기 위해 충청남도 소재의 중, 고등학교 소속 역도선수[중등부 남자(n=5), 중등부 여자(n=5), 고등부 남자(n=12), 고등부 여자(n=8)]들을 대상으로 약 10개월 간의 역도기반 훈련에 따른 신체조성, 기초체력(근력, 근지구력, 순발력, 유연성, 동적평형성, 협응성) 및 등속성 근 기능(하지 및 요부)의 변화를 추적 관찰하였다. 그 결과, 중·고교 역도선수들은 제지방량의 증가를 중심으로 신체발달이 이루어졌으며, 척추 안정화와 함께 상체와 하체 간의 빠르고 효율적인 힘 전달에 기여하는 배근력과 순발 력, 바벨을 안정된 그립으로 통제하기 위해 필요한 높은 악력은 역도 경기력의 중요한 체력요인으로서 고 등부 수준에서 진행되는 전문적인 훈련과 경기 경험을 통해 유의하게 향상되는 것을 확인하였다. 반면, 역 도종목의 경기력에 기여하는 주요 체력요인 이외의 변화는 제한적이었으며, 이는 구체적인 훈련 프로그램의 구성 혹은 선수들의 경력 및 숙련도에 따른 효율성의 차이에서 비롯된 것으로 추론된다. 종합해보면, 성 장기 역도선수들의 체력과 운동능력은 엘리트 운동선수의 발전가능성을 평가하는 중요한 요소로서 이 연 구를 통해 도출된 결과는 역도 선수들의 향상된 경기 성과를 이루는데 기여할 것으로 기대된다.

This study aimed to quantitatively analyze the risk using data from 329 safety accidents that occurred in aquaculture fisheries management vessels over the recent five years (2018-2022). For quantitative risk analysis, the Bayesian network proposed by the International Maritime Organization (IMO) was used to analyze the risk level according to the fishing process and cause of safety accidents. Among the work processes, the fishing process was analyzed to have the highest risk, being 12.5 times that of the navigation, 2.7 times that of the maintenance, and 8.8 times that of the loading and unloading. Among the causes of accidents, the hull and working environment showed the highest risk, being 1.7 times that of fishing gear and equipment, 4.7 times that of machinery and equipment, and 9.4 times that of external environment. By quantitatively analyzing the safety accident risks for 64 combinations of these four work processes and four accident causes, this study provided fundamental data to reduce safety accidents occurring in aquaculture fisheries management vessels.

This study employs Bayesian network analysis to quantitatively evaluate the risk of incidents in trap boats, utilizing accident compensation approval data spanning from 2018 to 2022. With a dataset comprising 1,635 incidents, the analysis reveals a mortality risk of approximately 0.011 across the entire trap boat. The study significantly identifies variations in incident risks contingent upon fishing area and fishing processes. Specifically, incidents are approximately 1.22 times more likely to occur in coastal compared to offshore, and the risk during fishing processes outweighs that during maintenance operations by a factor of approximately 23.20. Furthermore, a detailed examination of incident types reveals varying incidence rates. Trip/slip incidents, for instance, are approximately 1.36 times more prevalent than bump/hit incidents, 1.58 times more than stuck incidents, and a substantial 5.17 times more than fall incidents. The study concludes by providing inferred mortality risks for 16 distinct scenarios, incorporating fishing areas, processes, and incident types. This foundational data offers a tailored approach to risk mitigation, enabling proactive measures suited to specific circumstances and occurrence types in the trap boat industry.

본 연구는 가선집재시스템에서 벌도목을 견인 시작 지점에서 Yarder까지 안전하게 운반할 수 있는 최대 하중인 가선경로상의 허용반송량을 분석하여, 가선집재 작업에 필요한 의사결정을 지원하기 위한 목적으로 수행되었다. 이를 위해 허용반송량의 변화를 예측하는 모델을 구현하고, 가선집재시스템 구동에 주요 인자인 지형조건, Yader의 높이, 가선의 직경, 벌도목의 견인형태 및 작업방식에 대한 민감도 분석을 수행하였다. 분석결과, 가선 설치계획에 있어 오목한 지형을 선택하는 것이 안전성과 효율성에 중요한 영향을 미치는 것을 확인할 수 있었고 Yarder의 높이나 Wire rope의 직경, 벌도목의 견인형태 및 시스템의 작업방법과 같은 시스템을 구성하는 여러 요인에 의해 작업 생산량이 달라지는 것을 확인하였다. 이러한 결과는 가선의 설치경로에 대한 허용반송량 분석의 필요성과 시스템의 다양한 구동 요인에 대한 평가가 가선집재시스템의 국내 현장 적용 및 보급에 필요함을 보여준다.

As markets and industries continue to evolve rapidly, technology opportunity discovery (TOD) has become critical to a firm's survival. From a common consensus that TOD based on a firm’s capabilities is a valuable method for small and medium-sized enterprises (SMEs) and reduces the risk of failure in technology development, studies for TOD based on a firm’s capabilities have been actively conducted. However, previous studies mainly focused on a firm's technological capabilities and rarely on business capabilities. Since discovered technologies can create market value when utilized in a firm's business, a firm’s current business capabilities should be considered in discovering technology opportunities. In this context, this study proposes a TOD method that considers both a firm's business and technological capabilities. To this end, this study uses patent data, which represents the firm's technological capabilities, and trademark data, which represents the firm's business capabilities. The proposed method comprises four steps: 1) Constructing firm technology and business capability matrices using patent classification codes and trademark similarity group codes; 2) Transforming the capability matrices to preference matrices using the fuzzy function; 3) Identifying a target firm’s candidate technology opportunities using the collaborative filtering algorithm; 4) Recommending technology opportunities using a portfolio map constructed based on technology similarity and applicability indices. A case study is conducted on a security firm to determine the validity of the proposed method. The proposed method can assist SMEs that face resource constraints in identifying technology opportunities. Further, it can be used by firms that do not possess patents since the proposed method uncovers technology opportunities based on business capabilities.

In this study, the quality of sow pork was compared with commercial pork to evaluate sow pork as raw meat material for processing. Texture, cooking loss, color, pH, water, lipid, fatty acid, volatile profiles, and sensory characteristics of 3 parts (tenderloin, loin, hind leg) of sow and commercial pork were analyzed. In texture analysis, sow pork had significantly higher shear force compared to commercial pork (tenderloin: sow 143.19 N, commercial 107.79 N; loin: sow 173.62 N, commercial 120.65 N; hind leg: sow 211.76 N, commercial 112.80 N) (p<0.05). There were significant differences in cooking loss, color, and pH, but they differed by part. A total of 49 volatile compounds were identified, and there were significant differences in 22 volatile compounds. In the case of hexanal (one of the warmed-over flavors), which was detected on the largest scale, the relative concentration was significantly higher in the tenderloin of commercial pork (p<0.05). On the other hand, no differences were reported by sensory analysis for hardness, off-flavor, juiciness, oiliness, appearance, taste, and acceptability between cooked sow and commercial pork. This study provides a database on the quality of sow pork by parts, which is considerable to develop proceed meat products using sow meat.