In SRC column, the closed hoops are applied with the same detail of both 135° standard hooks to expect the same performance as hoops of RC columns. This standard detail is actually complicated to construct, thus, two separating rebars are connected in the form of a square shape and welded over the overlapping section. But this is also complicated in construction practice. Therefore, this study describes experimental results regarding cyclic behaviors shown with alternative hoops cramped by the steel clip type-binding device instead of welding and standard specimen. As a result of the experiment, the specimens with alternative hoops of the SRC column showed comparable performance to the specimens with closed hoops. Therefore, it can be evaluated that the alternative hoops applied with the rebar confinement clips in the SRC column can replace the closed hoop.

Image-oriented information is becoming increasingly important on social networking services (SNS); the background of this trend is the popularity of selfies. Currently, camera applications using augmented reality (AR) and artificial intelligence (AI) technologies are gaining traction. An AR camera app is a smartphone application that converts selfies into various interesting forms using filters. In this study, we investigated the change of keywords according to the time flow of selfies in Goolgle News articles through semantic network analysis. Additionally, we examined the effects of using an AR camera app on appearance satisfaction and self-esteem when taking a selfie. Semantic network analysis revealed that in 2013, postings of specific people were the most prominent selfie-related keywords. In 2019, keywords appeared regarding the launch of a new smartphone with a rear-facing camera for selfies; in 2020, keywords related to communication through selfies appeared. As a result of examining the effect of the degree of use of the AR camera app on appearance satisfaction, it was found that the higher the degree of use, the higher the user’s interest in appearance. As a result of examining the effect of the degree of use of the AR camera app on self-esteem, it was found that the higher the degree of use, the higher the user’s negative self-esteem.

The purpose of this study is to examine the relationships between citations and the research trends of The Research Journal of the Costume Culture (RJCC) using bibliometric and network analyses. The results are as follows. First, the RJCC has been cited by a greater number of journals and high-reputation journals today. The RJCC has been mentioned in global academic journals in various fields, and it has been noted the most in environmental science. Second, because of examining the articles published in the RJCC over the past three years (2019–2021), it was found that the number of topics was evenly distributed in various subfields of the clothing and textiles sector. The RJCC principally deals with traditional clothing, ethics and sustainability, and technology, which means that the RJCC reflects the past, present, and future. As a result of conducting a cluster analysis using the Wakita-Tsurumi algorithm, the subjects of ethical fashion and sustainability were derived from the subdivisions of the RJCC. This suggests that the RJCC is a journal specialized in ethical fashion and sustainability sectors such as environmental, animal, and labor ethics. This study outlined the current status and future direction of academic journals in the field of clothing through an analysis of the RJCC’s influence change and the relationship between citations. In addition, it is academically significant because it identifies research trends and knowledge-structure changes in the apparel science field by identifying changes in research keywords and significant research topics by sector.

This study attempted to obtain a comprehensive insight into future education by systematically analyzing the contents of the research report from national research institutes on future education. To achieve this, 11 research reports on future education were analyzed using the semantic network analysis method. As a result, first, the main keywords of future education are 'future-oriented', 'artificial intelligence', 'learning topic', 'diversity', 'convergence', 'future core competency', 'democratic citizenship education', 'thinking ability', 'education policy', and 'literacy'. Second, among these keywords, 'education reform' is strongly linked with 'future-oriented', 'future core competency' and 'education policy'; 'future core competency' is strongly linked with 'future science' and 'thinking ability'; 'future science' was found to be strongly connected with 'learning subject' and 'convergence'. Also, 'education content' was found to be strongly connected with 'diversity', 'literacy' and 'artificial intelligence'. Third, as a result of the centrality index, 'future-oriented' is located at the center of the network, followed by 'learning topics', 'diversity', 'literacy', and 'artificial intelligence' are located within a short distance. In addition, 'learning topics', 'artificial intelligence', and 'future orientation' were found to play an important role in the overall semantic structure. The main points of discussion are discussed, based on these results, with previous research results.

The Precast concrete(PC) modular structures are a method of assembling pre-fabricated unit modules in the construction site. The essential aim of modular structures is to introduce a connection method that can ensure splicing performance and effectively resist shear strength. This study proposed PC module using a connecting plate that can replace splice sleeves and shear keys used in the conventional PC modular structures. To evaluate the splicing performance and shear capacity of the proposed method, the shear test was conducted by fabricating one monolithic reinforced concrete(RC) beam and two PC modular beams with a shear span-to-depth ratio as variables. The experimental results showed that the shear capacity of the PC modular beam was about 89% compared to that of the RC beam, and showed a failure of the RC beam according to the shear span-to-depth ratio. Therefore, it was considered that the connecting plate effectively transferred the stress between each PC module through the joint and ensure integrity. In addition, the applicability of shear strength equation of ACI 318-19 and Zsutty's equation to PC modular beams were evaluated. Results demonstrated that the improved shear strength equations are needed to consider reduction of shear strength in PC modules.

기업환경은 불확실하고, 변동이 심하며, 복잡하고, 모호한 특징을 가지고 있다(Barber, 1992). 기존의 경영방식으로는 성장과 생존을 담보하기 어려운 상황에 직면하게 되었으며, 심화된 경쟁은 창의적 사고 와 혁신을 요구하게 된 것이다. 이에 본 연구에서는 변화에 대한 인식 및 대응능력인 인지적 유연성에 주목하게 되었다. 본 연구의 목적은 다음과 같다. 첫째, 조직 내 구성원들의 인지적 유연성과 혁신행동 간의 영향 관계를 살펴보고자 하였다. 둘째, 인지적 유연성과 혁신행동 간의 관계에서 심리적 안전감의 조절효과를 규명해 보고자 하였다. 셋째, 추가 분석을 통해, 인지적 유연성을 중심으로 성별 간 차이를 나타내는지 비교 분석해 보고자 하였다. 자료수집은 총 4개 산업에서 근무하고 있는 종업원 269명을 대상으로 진행하였다. 설문조사는 4주간의 시간차를 두고, 총 두 차례 실시하였다. 검증결과를 요약해 보면 다음과 같다. 첫째, 구성원들의 인지적 유연성은 혁신행동에 정(+)의 영향을 주었다. 둘째, 높은 심리적 안전감은 인지적 유연성과 혁신행동 간의 정(+)의 관계를 강하게 조절하는 것으로 나타났다. 셋째, 성별에 따른 추가 분석에서 뚜렷한 차이점을 발견하지 못하였다. 현재, 경영학 분야에서 인지적 유연성은 크게 주목받지 못하였다. 하지만 인지적 유연성이 갖는 가치가 점차 중요해짐으로써 이를 획득하고 관리할 수 있다면 경영자와 관리자들에게 다양한 시사점을 제공할 수 있을 것으로 판단한다.

PURPOSES : This study prioritizes the potential technology for establishing an efficient traffic control in the ramp junction of urban deep underground tunnels in the future. We considered most of the applicable technologies that ensure traffic safety at the on-off ramp junction. METHODS : This study proposes a methodology to prioritize the applicable technology for establishing efficient traffic control in the ramp junction of an urban deep underground tunnel using an analytical hierarchy process (AHP). First, an AHP structure was developed. Second, an individual survey was conducted to collect the opinions of road and transportation experts. Based on the survey results, weights were estimated depending on the relevant criteria of the developed structure. The estimated weights were verified using the consistency index (CI) and consistency ratio (CR). In addition, a sensitivity analysis was performed to confirm the reliability of the estimated weights. Finally, the potential technology for an efficient traffic control in the ramp junction of an urban deep underground tunnel was prioritized. RESULTS : In the first level of hierarchy, traffic demand control had the highest priority, and ramp metering, section speed control, and shoulder lane control were selected in the second level of hierarchy. CONCLUSIONS : These results implied that prioritizing would be useful in establishing traffic operation strategies for traffic safety when constructing and opening deep underground tunnels in urban areas in the future.