• International Journal of Computer Science & Network Security
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• 제22권4호
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• pp.89-100
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• 2022

With the advancement in the Internet of things Technology (IoT) cloud computing, billions of physical devices have been interconnected for sharing and collecting data in different applications. Despite many advancements, some latency - specific application in the real world is not feasible due to existing constraints of IoT devices and distance between cloud and IoT devices. In order to address issues of latency sensitive applications, fog computing has been developed that involves the availability of computing and storage resources at the edge of the network near the IoT devices. However, fog computing suffers from many limitations such as heterogeneity, storage capabilities, processing capability, memory limitations etc. Therefore, it requires an adequate task scheduling method for utilizing computing resources optimally at the fog layer. This work presents a comprehensive review of different task scheduling methods in fog computing. It analyses different task scheduling methods developed for a fog computing environment in multiple dimensions and compares them to highlight the advantages and disadvantages of methods. Finally, it presents promising research directions for fellow researchers in the fog computing environment.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제25권1호
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• pp.45-63
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• 2022

Multicultural students are a rapidly growing population in South Korea. Previous studies from the South Korean mathematics education community have reported low mathematics achievement levels of this population compared to Korean-born students. However, a systematic literature review was hardly employed. This study aims to synthesize the factors that affect the mathematics achievement of multicultural students to provide directions for future research and practical directions. Using an Opportunity-Propensity framework suggested by Byrnes and Miller, this study analyzed twenty-seven peer-reviewed journal articles on this topic. The results showed that the majority of the studies focused on the impact of the opportunity factors such as mathematics curriculum and teachers on mathematics achievements. We suggest that more studies regarding distal factors (e.g., students' prior achievement) and propensity factors (e.g., prerequisite knowledge) are needed.

• 셀메드
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• 제13권14호
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• pp.20.1-20.6
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• 2023

The purpose of this study is to explore directions for achieving therapeutic and social well-being effects through intercultural citizenship education in language classrooms. To accomplish this, we first clarified the concepts of education as healing, social well-being, and intercultural citizenship education. Subsequently, through the analysis of reflective journals on the writing and peer review processes written by university students, we discovered manifestations of key concepts of intercultural citizenship, such as empathy, recognition, connection, discovery of new knowledge, and attitude change. Based on these insights, we proposed the perspective that addressing the concept of intercultural citizenship in Korean language education can be beneficial for language education as a form of healing and for social well-being. Furthermore, we suggested that future language education should evolve from instruction focused on the interpretation of symbols and functional proficiency to practices that empower learners as members of global society, allowing them to assign value to their lives and build healthy relationships with others.

• International Journal of Internet, Broadcasting and Communication
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• 제15권4호
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• pp.115-127
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• 2023

In this paper, we have undertaken a comprehensive investigation into the current state of anti-drone technology due to the increasing concerns and risks associated with the widespread use of drones. We carefully analyze anti-drone technology, dividing it into three crucial domains: detection, identification, and neutralization methods. This categorization enables us to delve into intricate technical details, highlighting the diverse techniques used to counter evolving drone threats. Additionally, we explore the legal and regulatory aspects of implementing anti-drone technology. Our research also envisions potential directions for advancing and evolving anti-drone tech to ensure its effectiveness in an ever-changing threat environment.

• 식품과학과 산업
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• 제55권2호
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• pp.140-153
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• 2022

The purpose of this study is to organize research trends by analyzing healing studies using emotional insects, and to suggest future research directions. As a result, only six emotional insect species were used for healing purposes, and most of the age groups of the test subjects were elementary school students and the elderly. As for the type of research, field application of the healing program was dominant at 76.5%. Effectiveness verification was mainly conducted through questionnaires before and after participating in the healing program. In some cases, stress-related salivary hormones were used as indicators or clinical tests were conducted by medical staff. Based on the results of this analysis, future strategies such as finding new emotional insect species, developing various types of healing program models, and expanding and subdividing the target subjects were suggested to promote the growth of the healing industry using emotional insects in the future.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제29권4호
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• pp.21-28
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• 2023

Purpose: This study is to analyze the preferences for future senior housing that reflects the characteristics of the new generation of seniors and to consider the direction of future senior housing. Methods: Data from an online survey of a new generation of older adults and group interviews with professionals and baby boomers were analyzed. The data collected from the survey and interview have been using quantitative analysed method. Literature surveys also have been carried out. Results: The results show that future senior housing requires a change in perception through conceptual expansion from the Aging in Place (AIP) to the Aging in Community (AIC) paradigm. The preferences of the new generation of seniors for future senior housing were examined to determine their preferences for location, facility size and type, unit floor plans and services, and living costs. Implications: The direction of senior housing services and architectual plans for seniors aged 55 to 65 years old were discussed.

• 한국운동역학회지
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• 제20권2호
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• pp.191-196
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• 2010

The purpose of this study was to investigate the effect of gait speed and walkway slope on the body acceleration, for the future validation of using an accelerometer in the estimation of energy consumption. Ten young healthy subjects with accelerometers on the upper thigh and ankle walked on a treadmill at 9 conditions(three speeds ${\times}$ three slopes) for 5 minutes. Acceleration signals of four directions, i.e. anterior-posterior(AP), medio-lateral(ML), superior-inferior(SI) and vector sum(VS) directions, of each sensor were measured, and root means squared(RMS) values of them were used as analysis variables. As statistical analysis, repeated measure two-way ANOVA was performed for RMS accelerations at each attachment sites, with slope and velocity as independent factors. At both the upper thigh and ankle, RMS acceleration of all directions were affected by gait velocities(p<.001) showing greater accelerations for higher velocities. Contrary to expectations, no slope effect existed in RMS accelerations at hip. Moreover, RMS acceleraion at ankle decreased with slope in SI and VS directions(p<.01). These results suggests that RMS acceleration cannot reflect the change in physical activity due to the change in walkway slope.

• 멤브레인
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• 제23권1호
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• pp.24-44
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• 2013

MBR 기술은 지난 20여 년 동안 처리성능과 효율성 그리고 비용절감 측면에서 빠른 속도로 발전하고 있다. 또한 안정적인 하수처리와 하수재이용관점에서 핵심기술로 널리 인식되고 있다. 본고에서는 MBR 기술의 개발과 상업적 응용에 관한 발전과정을 재조명하고 세계 시장의 전망을 제시하고자 한다. 주요 적용기술에 대해 다음 5가지 측면에서 검토하여 제시하였는데 1) MBR 기술의 진화, 2) MRBs의 상업용 기술, 3) 대용량 MBR 플랜트 설치 사례, 4) MBR 시장의 성장, 5) 기술의 발전방향 순으로 제시하였다. 마지막으로 MBRs에 대한 경제적, 환경적, 그리고 기술적 측면에서 향후 발전방향을 1) 초기투자비, 2) 처리 수질, 3) 분리막 소재/모듈, 4) MBR 장비와 공정, 5) 운영비용, 향후 6) 혐기성 MBRs 공정과 같은 차세대 기술 분야로 나누어 제시하였다.

• 한국운동역학회지
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• 제29권1호
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• pp.33-41
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• 2019

Objective: This study aimed to investigate the effect of diminished plantar sensation in Y-balance test between chronic ankle instability (CAI) patients versus Healthy individuals. Method: A total of 90 subjects and CAI group (N=45) (age: $24.49{\pm}2.52yrs$, height: $173.53{\pm}8.20cm$, weight: $69.62{\pm}12.92kg$) and healthy group (N=45) (age: $24.85{\pm}2.70yrs$, height: $170.27{\pm}7.70cm$, weight: $66.04{\pm}11.60kg$) participated in this study. Participants were tested on the anterior (ANT), posterolateral (PL), and posteromedial (PM) reach directions of the Y-Balance Test before and after a 10-minute of plantar cutaneous sensation application using ice ($2^{\circ}C$). Normalized reach distances were measured 3 times each direction. Results: We observed a decrease in reach-distance scores for the reach directions after diminished plantar cutaneous sensation in all reach directions (p<.01). Also, we observed a decrease in reach-distance scores for the PL, and PM reach directions between groups (p<.05). Conclusion: Our results indicated that dynamic postural control was adversely affected immediately after diminished plantar cutaneous sensation between CAI group and healthy group. Future research may suggest that determine the studies involving more realistic dynamic movement, such as walking or running, landing.

• 통상정보연구
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• 제16권1호
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• pp.45-68
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• 2014

우리나라는 2008년 AEO 제도가 도입된 이후 현재 2013년 12월 31일 기준으로 516개 부문에서 AEO 인증이 진행이 되었다. 그리고 국내 기업들은 AEO 인증을 획득하기 위해 적극적으로 노력을 하고 있는 추세이다. 이러한 측면에서 본 연구의 목적은 국내에 AEO 인증제도의 활성화에 기여하고 기업의 성과 향상에 도움이 될 수 있는 실무적인 연구의 방향성을 제시하고자 함이다. 이를 위해 AEO 관련 국내의 선행 연구자들의 연구 내용을 살펴보고, 선행연구에서 다루어진 주요 주제를 파악하여 연구 동향을 분석하였다. 그리고 지금까지 연구가 부족한 부분과 함께 향후 진행이 집중되어져야 할 주요 내용을 제시하였다. 연구동향에 관한 분석 결과, AEO 인증이 도입되지 이전의 시기에는 AEO 인증을 도입해야하는 목적과 혜택 그리고 여러 선진제도와의 비교의 연구가 주를 이루었다. 그리고 인증제도가 국내에 도입된 이후에는 활성화를 위한 연구가 대부분을 이루어졌음을 알 수 있었다. 본 연구는 AEO 인증제도와 관련한 국내 연구자들의 연구 내용을 연도별로 살펴보고 주요 연구 내용들을 종합적으로 분석하여 향후 연구자들을 위한 실무적인 연구 방향을 제시함으로써 기존 연구와의 차별성과 연구의 의의가 있다고 하겠다.