• 재활복지
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• v.18 no.4
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• pp.207-220
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• 2014

The purpose of this study is to determine the parent-perceived effect of adaptive seating devices on the lives of infant or young children with physical and brain lesion disabilities(age 1-13y) and their families. Using the seating device for disabled parents of 42 people with disabilities who use FIATS-AS to investigate functional outcomes. All parents completed the FIATS-AS 4 times-2 times before and 2 times after their child received a new adaptive seating system. Repeated-measures analysis of variance detected significant mean differences among the FIATS-AS scores. Also to estimating the impact of the new seating intervention for the 3 age cohorts using the FIATS-AS scores. The FIATS-AS detected a significant interaction between age cohort and interview time. Providing adaptive seating devices has been found that the positive effects on guardians. The change was significant in 1~7 years of age. Environmental modification, such as seating and other assistive technology devices, may have an important role to play in the lives of young children with disabilities and their families.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.6
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• pp.243-250
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• 2023

Chest X-ray is radiological examination for xeamining the lungs and haert, and is particularly widely used for diagnosing lung disease. Since the quality of these chest X-rays can affect the doctor's diagnosis, the process of evaluating the quality must necessarily go through. This process can involve the subjectivity of radiologists and is manual, so it takes a lot of time and csot. Therefore, in this paper, based on the chest X-ray quality assessment guidelines used in clinical settings, we propose a tool that automates the five quality assessments of artificial shadow, coverage, patient posture, inspiratory level, and permeability. The proposed tool reduces the time and cost required for quality judgment, and can be further utilized in the pre-processing process of selecting high-quality learning data for the development of a learning model for diagnosing chest lesions.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.171-174
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• 2008

난독증 학습장애를 일으키는 주요 증상인 광과민성증후군을 완화시키는 보조도구로써 컴퓨터에서 사용할 수 있는 가상 색 오버레이를 구현하고 사용성을 평가하였다. 구현 결과를 한글 문서, e-book, 웹 문서 및 동영상에 적용한 결과 한글 문서나, e-book에서는 적용에 문제가 없었으나, 링크와 텍스트 박스를 다수 포함하는 웹 문서나 그래픽 객체를 마우스로 드래그해야 하는 게임 응용과 동영상 적용에서는 보완이 요구된다. 본 연구에서 개발된 도구는 난독증 학습장애인이 일반 전자문서와 e-book을 위주로 한 컴퓨터 학습에 사용할 수 있다.

• Journal of Digital Contents Society
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• v.19 no.2
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• pp.251-257
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• 2018

The purpose of this study is to analyze the satisfaction and requirements of users' devices after development of tablet based AAC(Augmentative and Alternatice Communication) application for Android. The purpose of this study is to evaluate the satisfaction and the requirement of tablet - based AAC application, Were assessed using the Korea Assistive Technology Assessment Tool (KAAT). As a result of satisfaction evaluation of tablet-based smart AAC device, all the items including device, service, and everyday life showed positive response satisfying from 5 point scale to more than 4 point scale. However, it was relatively low in the items of effectiveness, manipulation and convenience. Some of the improvements in the application include the enlargement of the symbol sound and the simplicity of symbol editing. The results of the study suggest that continual updates of m Smart AAC applications, the simplicity of symbolic editing, application usage and training should be improved. The satisfaction evaluation results of this study and the feedback of potential users will be the guidelines for improving and complementing the functions of existing smart AAC devices.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.11 no.2
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• pp.147-156
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• 2017

The white cane, walking assistive device of visually impaired person, has disadvantages for acquiring the information by contacting obstacles directly and detecting low obstacle on the ground. Recently, new devices have been developing to solve these problems, but these were not widely used due to high price and appearance. Therefore, in this study, we developed two types of walking assistive shoes which were manufactured with infrared sensors, pressure sensors and vibrating motors. Two types of shoes were classified with single sensor (SS) and double sensor (DS) type according to the number of infrared sensor. To evaluate the effectiveness, we compared required time and number of collisions during walking with walking assistive shoes and white cane on obstacle area. As the results, required time was increased than white cane while number of collisions was decreased when walking with developed walking assistive shoes. In addition, required time and number of collisions was more reduced when using walking assistive device than white cane. Therefore, we suggests that developed walking assistive shoes can a great help to provide safe walking condition and reducing time to adapt new types of walking assistive shoes.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.597-598
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• 2023

X-ray는 촬영 방식의 한계로 진단하기 어려운, 품질 낮은 영상을 다수 발생시킨다. 이러한 저품질 영상은 임상 현장에서의 진단이 어려울 뿐만 아니라, 진단 보조 도구를 개발함에 모델의 성능과 신뢰도를 떨어뜨리는 주요 요소가 된다. 특히 투과도가 낮은 영상은 학습 성능에 악영향을 미친다는 것이 입증된 바 있다. 따라서 본 연구는 투과도가 낮은 영상을 진단에 부적합한 영상으로 정의하여, 이를 분류하는 기법을 제안한다. 제안하는 기법은 민감도 94.9%. 특이도 96.0%의 높은 성능을 보였다.

• Journal of Software Assessment and Valuation
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• v.15 no.1
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• pp.63-70
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• 2019

These days, as Interest in Image recognition with deep learning is increasing, there has been a lot of research in image recognition using deep learning. In this study, we propose a system for classifying rocks through rock images of 18 types of rock(6 types of igneous, 6 types of metamorphic, 6 types of sedimentary rock) which are addressed in the high school curriculum, using CNN model based on Tensorflow, deep learning open source framework. As a result, we developed a classifier to distinguish rocks by learning the images of rocks and confirmed the classification performance of rock classifier. Finally, through the mobile application implemented, students can use the application as a learning tool in classroom or on-site experience.

• Journal of agricultural medicine and community health
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• v.44 no.3
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• pp.138-143
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• 2019

Objectives: The purpose of this study was to assess the ergonomic risk factors in beekeeping, and to evaluate the effectiveness of assistive device hive lift. Methods: This study included 30 subjects of beekeeper in Pocheon, Korea. We assessed the ergonomic risk of main task in beekeeping with NLE, OWAS and evaluate the effectiveness of hive lift. We also surveyed prevalence of musculoskeletal symptoms among the subjects based on the Korea Working Condition Survey. Results: Moving to different floral origin, internal inspection of beehives, feeding syrup is the most burdensome to musculoskeletal system (NLE LI value=2~3. OWAS action category=4). The prevalence of musculoskeletal symptoms (lower and upper extremities) among the subjects was over 80 %. The introduction of assistive devices in the three hazardous tasks has dramatically reduced the risk by removing manual lifting hives (OWAS action category<1). Conclusions: Beekeeping is a heavy workload on the musculoskeletal system because it has a lot of manual lifting task. As a result of applying the hive lift, the burden could be reduced.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2017.04a
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• pp.143-143
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• 2017

산업이 고도화됨에 따라 자동화 기계 및 로봇에 의해 대량 생산 되는 품목과 달리, 작업 절차의 비정형성, 비연속성 등으로 인해 여전히 농업에 많은 인력이 투입되고 있다. 국제노동기구에 따르면, 세계 인력의 절반이 농업 인력에 해당하고 작업 중 부상이나 사망 등으로 인해 가장 위험한 직업군 중 하나에 해당하는 것으로 나타났다. 시설 재배 농업의 경우, 노동집약적인 온실 내 작업 특성상 잘못된 자세로 작업하거나 지나친 작업량 등으로 인해 작업자에게 근골격계 질환이 발생할 수 있다. 근골격계 질환으로 인해 작업효율이 감소하거나 생산비용의 증가로 이어질 수 있으며, 농가 수익에 손실이 발생할 수 있다. 이에 본 연구에서는 현행 시설 재배 농업에서 사용되는 레일 전동 작업차를 이용하여 작업자가 토마토를 수확할 때의 신체에 대한 농작업의 부하를 평가하고자 하였다. 작업차를 이용한 주요 작업 절차는 작물로부터 과실 수확, 과실 상자에 과실 투입, 빈 과실 상자와 가득 찬 과실 상자의 교대, 작업차 위의 과실 상자를 운반용 파레트에 하역하는 순서로 이루어지는 것을 확인하였다. 비디오장비로 촬영된 일련의 농작업 과정을 OWAS, RULA, REBA와 같은 체크리스트형 인간공학적 작업 부하 평가 도구를 이용하여 평가한 결과, 기존 레일 전동 작업차를 이용한 농작업의 근골격계 질환 유발 가능성을 확인하였다. 동작별 위험성을 토대로 근골격계 질환 유발 가능성이 높아 개선이 필요한 농작업 동작을 선정하였다. 선정된 동작은 실험실 내 환경에서 피실험자를 통한 모의 동작의 생체 신호 계측을 통해 신체 부하 정도를 정량적으로 측정할 수 있으며, 보조가 필요한 신체 부위를 특정하거나 안전성 확보가 필요한 동작에 대한 증거가 될 수 있다. 본 연구를 통해 향후 토마토 온실 내 신선도 유지를 위한 레일 전동 작업차의 개발에 작업자의 안전과 효율성 향상을 위한 인간공학적 설계를 적용할 수 있을 것으로 기대한다.

• Journal of The Korean Association of Information Education
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• v.10 no.3
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• pp.413-422
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• 2006

MTP(Multi-graded Tutoring Project) is a designed curriculum needed to perform a high quality project to improve teamwork and major skills for college student of science and engineering. Each student can experience teaching activities as a tutor and learning activities as a tutee in the MTP for three years. Through this curriculum, students are expected to obtain the capabilities to set up and search the goal of given projects, to make human network among multi-graded students and professionals which could be critical for finding careers, and to perform graduation projects in a more systematic and co-operated way, resulting in highly-qualified outputs. In this paper, MTP e-portfolio evaluation model is suggested. This model evaluates the individual-level performance operating in MTP curriculum. The evaluation model is described with three dimensional structure composed of participator, changes in learning, and learning processes. The resultant model could be utilized as tools for evaluating the curriculum set up for the multi-graded project-based teaching environment.