• Proceedings of the Korean Society of Computer Information Conference
• /
• 2022.07a
• /
• pp.407-408
• /
• 2022

본 논문에서는 AIoT를 위한 비주얼 블록 코딩 도구를 설계하였다. AI 블록 코딩이 가능한 EduB 플랫폼에 피지컬 컴퓨팅을 가능하게 하는 모듈을 추가함으로써 블록을 사용한 쉬운 피지컬컴퓨팅 코딩과 AIoT 코딩이 가능하다. 도구는 WebSocket과 Wifi를 사용해 EduB와 타겟보드인 RaspberryPi의 무선 통신을 하며, 블록으로 생성된 코드를 RaspberryPi 내부에서 실행하여 GPIO와 SenseHAT을 제어할 수 있게 하였다. 따라서, 코딩 결과를 콘솔 출력이나 그래프로만 확인할 수 있어 정적이던 AI 교육을 LED나 모터를 제어해 동적으로 결과를 확인할 수 있게 하여 흥미와 관심을 유발할 수 있도록 한다.

• Bio news
• /
• no.2
• /
• pp.35-35
• /
• 2003

• Journal of The Korean Association of Information Education
• /
• v.21 no.1
• /
• pp.41-55
• /
• 2017

The physical computing education, as the emerging field, is a form of education that helps learners to develop the attitude of scientific inquiry by developing meaningful and creative output through the integration of hardware and software elements. Based on the literature, the authors of the study used science experience, school support and learning flow as the variables that predict the outcome variable which is the attitude of scientific inquiry. The authors collected data from 64 fourth and sixth graders who studied physical computing at an institution for the gifted and talented in Korea and then analyzed them using descriptive statistics, correlation, multiple regression and simple mediation analysis methods. As a result, science experience and learning flow significantly predicted the attitude of scientific inquiry. In addition, learning flow mediated the relationship between science experience and the attitude of scientific inquiry, and the relationship between school support and the attitude of scientific inquiry. Based on these results, the authors propose that to promote the attitude of scientific inquiry in physical computing education, strategies must be implemented for improving science experience, school support and learning flow in instructional design.

• Journal of the Society of Cosmetic Scientists of Korea
• /
• v.47 no.3
• /
• pp.247-254
• /
• 2021

Acne vulgaris is a chronic inflammatory skin disease related to pilosebaceous unit. In acne lesions, hyperseborrhea, dysseborrhea, inflammatory event, and an imbalance in skin microflora, particularly an increase in Cutibacterium acnes (C. acnes) colonization comparing to other bacteria, have been observed. The objective of this study was to evaluate anti-acne effects of Artemisia annua extract (AAE) on antibacterial activity related to preservation of the balance in skin microbiome, inhibition of inflammation, and reduction of excessive sebum production. When C. acnes and Staphylococcus epidermidis (S. epidermidis) were co-cultured in the presence of AAE, the reduction of C. acnes growth by AAE was greater than that of S. epidermidis. In addition, when C. acnes was cultured in a medium containing AAE (C. acnes AAE), levels of cytokines such as interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) and IL-6 and toll-like receptors-2 activity were decreased in comparison with C. acnes cultured in a medium without AAE (C. acnes CM). Moreover, AAE significantly inhibited excessive sebum production induced by palmitic acid. These results suggest that AAE, as a natural extract with various targets, can inhibit selective growth of C. acnes and inflammatory reactions derived from C. acnes, which are the main causes of acne, and consequently can be used as a substance to alleviate acne by reducing excessive sebum formation.

• Journal of The Korean Association of Information Education
• /
• v.22 no.6
• /
• pp.613-628
• /
• 2018

The purpose of this study is to analyze the teaching and learning process of physical computing using coding block for elementary gifted students in science. In order to obtain implications for teaching physical computing, we set the learning objectives from the Computer and Information Literacy Evaluation Standards developed by the International Association for the Evaluation of Educational Achievement(IEA) and developed a teaching and learning program for physical computing through collaboration between science education and computer education experts according to learning objectives. The developed program was related to the use of the coding block MODI(TM) and 32 classes of physical computing instruction were conducted for 15 students of the 4th to 6th grade who belong to an education institute for the gifted in science affiliated to the University. In the physical computing class, the teaching and learning process was analyzed by collecting data such as classroom videos, class observation logs, teacher and student questionnaires, and interviews. Based on the results of the study, the implications of the teaching and learning process of physical computing using the coded blocks in the school education field were suggested. And we also explored the strategy of expanding the computational thinking through the activities of coding instruction to realize creative ideas.

• Journal of Appropriate Technology
• /
• v.6 no.1
• /
• pp.37-44
• /
• 2020

Medical waste is any kind of waste that contains infectious material and recommended not to be transferred for infection control. As a means of disposal, incineration has better points than dumping or landfill in the quantity reduction, odorless and nonhazardous. However, open burning and incineration of health care wastes under bad circumstances, can result in the emission of environmental pollutants to air. A burial of biological waste brings pollution of soil and water. Most of sub divisional hospitals in Fiji transfer their medical wastes to divisional hospitals for incineration. In 2011, 62,518 kg of medical waste was incinerated in the three divisional hospitals. However, some medical wastes are considered as general waste and burnt or sent to landfill site, some are buried on site in some sub-divisional hospitals. In this regards, urgent education is necessary for awareness promotion to relevant personnel in medical waste treatment. On site incineration using small scale incinerator is more recommended than transportation of medical wastes treatment in Fiji. Moreover, remotely controllable and fixable small scale of incinerator is more desirable in sub-divisional hospitals. It is recommended that Fiji government to set up a legal framework for medical waste management (MWM), to develop specific guidelines for MWM, to set up a training system for MWM to ensure that all relevant personnel are trained, to develop a monitoring and supervision system for MWM, to clarify the future financing of MWM activities, and to improve the MWM infrastructure.

• Proceedings of The KACE
• /
• 2017.08a
• /
• pp.15-18
• /
• 2017

SW교육이 활성화되어 많은 SW교육용 교구들과 교안들이 출시되고 있다. 본 연구에서는 기존 SW교구들이 가지는 특성들을 STEAM 교육 요소에 근거하여 필요 요소들을 분석한다. 이를 통해 피지컬 컴퓨팅을 활용한 SW교육용 교구가 가져야할 기능을 제시하고, SW 교육 현장에 있어서 STEAM형 SW교구 선정에 활용할 수 있도록 한다.

• The Korean Journal of Financial Management
• /
• v.17 no.1
• /
• pp.1-12
• /
• 2000

본 논문은 5대 재벌 계열사들을 대상으로 재벌의 상호지급보증이 재벌의 지배구조 및 자본구조와 어떤 관련이 있는가를 실증적으로 분석하였다. 지급보증을 분석하면 지배주주의 지분율이 작은 회사일수록 그리고 상장기업일수록 타계열사에 대한 지급보증이 커진다는 것이 확인되었다. 한편 피지급보증을 보면 지배주주 지분율이 별로 영향을 주지 않는 것으로 분석되었다. 이러한 결과는 지배주주와 소액주주사이의 대리인문제가 계열사로부터의 피지급보증보다는 주로 계열사에 대한 지급보증에서 나타나고 있는 것을 시사하고 있다. 부채의존도가 높은 기업일수록 계열사에 대한 지급보증이 크다는 분석결과는 우리나라 금융기관과 재벌사이의 부채의 대리인문제가 심각하다는 것을 시사하고 있다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.04a
• /
• pp.1008-1011
• /
• 2014

디지털 기술의 발달과 함께 기술과 예술및 디자인의 경계가 모호해졌고, 이미 많은 교육기관에서는 두 분야를 교육에 녹여내고 있다. 그래서 본 연구에서는 창작의 관점으로 초중학생들에게 피지컬 컴퓨팅로 교육하였하였으며, 학생들은 아이디어부터 결과물까지 스스로 작품을 제작하는 경험을 하였다. 나아가 실제 학교 교육현장에서 활용할 수 있을지 방안을 모색해보고자 한다.

• Ingenium
• /
• v.11 no.2
• /
• pp.72-79
• /
• 2004