• 한국환경보건학회지
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• 제44권4호
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• pp.397-407
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• 2018

Objectives: The purpose of this study is to investigate human health risk assessment of indoor air pollutants at small-sized public-use facilities (e.g., daycare centers, hospital and elderly care facilities) that the susceptible population is mainly used. Methods: To assess indoor air quality (IAQ), the concentrations of indoor air contaminants such as HCHO, benzene, toluene, ethylbenzene, xylene, styrene, PM-10, CO, $NO_2$ and $O_3$ in air samples were measured according to the Indoor Air Quality Standard Method. By conducting the questionnaire survey, the major factors influencing IAQ were identified. Human health risk assessment was carried out in the consideration of type of use (user and worker) at 75 daycare centers, 34 hospitals and 40 elderly care facilities. Results: As a result of measurement of indoor air contaminants, the average concentration of HCHO and TVOCs in hospitals was higher than daycare centers and elderly care facilities, about 8.8 and 23.5% of hospitals were exceeded by IAQ standard. In human health risk assessment, for the user of daycare centers and elderly care facilities, the mean carcinogenic risk of HCHO inhalation was higher than acceptable value. Except for HCHO, other values were determined under acceptable risk. Similarly, for the worker of hospitals, the mean carcinogenic risk of HCHO inhalation was higher than acceptable value and other values were evaluated under acceptable risk. In contrast, the risk levels of other contaminants measured in elderly care facilities were acceptable. In the determination of factors influencing IAQ, the construction year, building type, ventilation time, and the use of air cleaner were identified. Conclusions: This study provides the information for establishing the plans of public health management of IAQ at small-sized public-use facilities that have not yet been placed under the regulation. The findings suggest the consideration of human health risk assessment results for the IAQ standards.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 1부
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• pp.33-39
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• 2006

Home modification has come to be recognized as an important intervention strategy to manage health care conditions, maintain or improve functioning, ensure safety, and reduce the wheelchair user's dependency on others. However, the availability of skilled professionals with experience in home modifications for accessibility is limited. A system that enables accurate remote assessments would be an important tool to improve our ability to perform home assessments more easily and at decreased cost. A Remote Wheelchair Accessibility Assessment System (RWAAS) using Virtualized Reality(VR) technology was developed that enabled clinicians to assess the wheelchair accessibility of users' built environments from a remote location. Characteristics of the camera and 3D reconstruction program chosen for the system significantly affect its overall reliability. In this study, we performed two reliability analyses on the hardware and software components: 1) Verification that commercial software can construct sufficiently accurate 3D models by analyzing the accuracy of dimensional measurements in a virtualized environment; 2) comparison of dimensional measurements with four camera settings. Based on these two analyses, we were able to specify a consumer level digital camera and the Photomodeler Pro software for this system. And we then tested the feasibility of the selected software and hardware in an actual environment. Lastly, A field evaluation was performed to test whether this new system is comparable to the traditional method of accessibility assessment to evaluate its ability to assess the accessibility of a wheelchair user's typical built environment. The results of field trials showed high congruence between the assessments by two methods. Findings suggested that the RWAAS assessments have the potential to enable specialists to assess potential accessibility problems in built environments regardless of the location of the client, home, or specialist.

• 한국컴퓨터정보학회논문지
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• 제20권1호
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• pp.49-62
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• 2015

본 연구에서는 건축정보모델링(Building Information Modeling, BIM) 데이터와 증강현실기술의 결합을 통한 기본적인 형태의 건축설계지원도구의 개발 방법을 제안한다. 본 연구에서 제안하는 시스템은 투명형 디스플레이, Mock-up 모델 및 디지털 건축 모델을 적극적으로 활용하여 다자간 디자인 검증 협업작업을 진행할 수 있는 시스템으로서, 투명형 디스플레이를 증강현실에 이용하기 위한 하드웨어 구성 및 고유한 시스템 프레임의 형태를 제안하고, 사용자의 시점에 맞는 증상현실 영상을 제시하기 위한 캡쳐 이미지의 배경 제거 및 관찰자 시점의 보정에 대해서 설명한다. 그리고 건축분야에서 많이 활용되고 있는 BIM으로 작성된 디지털 건축 모델의 증강현실 활용 가능성에 대하여 검토하였다. 또한 본 논문에서 제작한 2인용의 건축디자인 협업 시스템은 보다 많은 사용자가 작업을 진행할 수 있는 시스템으로 확장이 가능하며, 확장된 디자인평가시스템을 구성하기 위한 설계안에 대해서 제안한다. 이와 같은 증강현실기술을 이용한 건축설계지원도구의 개발을 통해 건축디자인 분야에서 실물 모델 및 BIM 저작툴로 작성된 디지털 모델을 적극적으로 활용하여, 보다 효율적이고 경제적인 건축디자인 검증 작업이 가능할 것으로 생각된다.

• 대한조선학회논문집
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• 제43권5호
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• pp.619-629
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• 2006

The safety assessment of the structure related to people has become the most important part in the process of the design. Especially, in the case of a ship, as regulations about the safety of passengers and the pollution in the ocean are strictly reinforcing, the safety assessment has become the most important part in the process of the design. In this paper, we suggested network-based simulation system framework using HLA (High Level Architecture) among many kind of simulations to assess the safety of the ship. In addition, the visualization method which is composed of graphic user interface for ship modeling and the visualization of ship motion is presented.

• The Journal of Korean Physical Therapy
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• 제27권1호
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• pp.30-37
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• 2015

Purpose: The purpose of this study was to develop a computer access assessment tool for persons with physical disabilities and to evaluate reliability and validity. Methods: We developed a computerized Computer access Assessment Program (CAP) through many kinds of literature review and tools analysis for evaluation of computer access, task analysis of fundamental input devices operation and expert review. The CAP data were obtained from 105 normal university students and 16 students with physical disabilities. The test items of CAP are composed of four timed mouse tasks, four timed keyboard tasks, and a timed scanning task. Thus, the software measures user performance in skills needed for computer interaction, such as keyboard and pointer use, navigating through menus, and scanning. To determine the validity of these measurements, we compared data on CAP reports to a Compass report. Compass software allows an evaluator for assessment of an individual's computer input skills. Results: Results of this study showed that the CAP had high internal consistency, reliability of test-retest, concurrent validity, and convergent validity. Conclusion: Therefore, the CAP is appropriate for evaluation and determination of computer access skill of persons with physical disabilities. It is possible to get clear quantitative data on performance when providing computer access services if you can use the CAP data. Using this quantitative evidence, insights can be gained into the specific nature of any difficulties experienced by persons with physical disabilities and find wise solutions.

• Journal of Nutrition and Health
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• 제20권1호
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• pp.54-64
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• 1987

The purpose of this study is to computerize all the necessary information on the daily food value and nutritional status for individuals and groups. In this research, a FOCUS-16jXT (16 bit personal computer ) compatible with IBM-PCjXT was used, and the database files and programs were created by using the dBASEIII package. The food life evaluation system consists of 3 subsystems of Reference, Nutrition Status Assessment and Food Source. The findings are summerized a8 follows: 1. Reference: This subsystem enables users to proceed to the next step, if necessary, by describing each subsystem. 2. Nutrition Status Assessment. 1) Food Habit Assessment: This subsystem determines whether the user has a good food habit or not, based on the answers for ten questions about daily food life. 2) Obesity Assessment: This subsystem calculates Broca index, which is used as a indicator of obesity. 3) Nutrient Intakes: When personal data such as age, sex, weight, height and food consumptions are input, it is possible to calculate the followings. i) Comparison between the amounts intaked and the recommended dietary daily allowances of various nutrients ii) Nutrient intakes from each food group and their composition rates for the nutrients iii) Nutrient intakes per unit body surface area iv) Composition of lipid intake 3. Food Sources: The appropriate food sources for the lacking nutrients will be recommended to the subjects.

• 농촌계획
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• 제19권4호
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• pp.47-54
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• 2013

Climate change is the most direct threatening factors in sustaining agricultural productivity. It is necessary to reduce the damages from the natural hazards such as flood, drought, typhoons, and snowstorms caused by climate change. Through the vulnerability assessment to adapt the climate change, it is possible to analyze the priority, feasibility, effect of the reduction policy. For the vulnerability assessment, broad amount of weather data for each meterological station are required. Making the database management system for the meteorologic data could troubleshoot of the difficulties lie in handling and processing the weather data. In this study, we generated the meteorologic data retrieval system (MetSystem) for climate change vulnerability assessment. The user interface of MetSystem was implemented in the web-browser so as to access to a database server at any time and place, and it provides different query executions according to the criteria of meteorologic stations, temporal range, meteorologic items, statistics, and range of values, as well as the function of exporting to Excel format (*.xls). The developed system is expected that it will make it easier to try different analyses of vulnerability to natural hazards by the simple access to meteorologic database and the extensive search functions.

• 한국기후변화학회지
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• 제8권4호
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• pp.339-346
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• 2017

The Korea Adaptation Center for Climate Change (KACCC) located in Korea Environment Institute has serviced a climate change vulnerability assessment support tool (VESTAP) since 2014 in order to help local governments to establish their own adaptation plans. Owing to its easy usage, the VESTAP has been utilized by not only local governments but also academia for examination of climate change vulnerability in various fields. However, the KACCC has not suggested a standard usage how to compose indices for climate exposure, sensitivity, and adaptation capacity which are main components of vulnerability although the KACCC manages operation and application of the VESTAP. Many users had no choice but to compose indices based on their own interpretation on the components of vulnerability. This technical note suggests the standard usage of VESTAP by reevaluating some vulnerability assessments previously developed. This may help users to correctly compose indices for climate change vulnerability assessment, and may minimize possibility of inter-user inconsistency in definition of vulnerability assessments.

• 한국조경학회지
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• 제50권4호
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• pp.37-52
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• 2022

본 연구의 목적은 북한산국립공원에 대한 네이버 블로그 포스트 및 LDA 토픽모델링을 활용하여 이용자 인식 및 경험 가치에 기반한 도시림의 문화서비스 수요 특성을 분석하고 공간적 평가 가능성을 검토하는 것이다. 연구에서는 블로그 포스트에 대한 토픽모델링의 결과를 바탕으로 북한산국립공원 문화서비스와의 관련성 여부와 공간평가 지표로서 활용 가능성 여부를 고려한 검토과정을 거쳐, 최종적으로 도시림의 문화서비스 공간평가 지표를 도출하였다. 구체적으로 토픽분석을 통해 도출된 총 21개의 토픽을 해석하고, 생태계서비스에 대한 MA(Millennium Ecosystem Assessment)의 문화서비스 분류체계에 기반하여 총 13개의 문화서비스 관련 토픽을 도출하였다. 이는 전체 문서의 72.7%에 해당하였다. 토픽의 내용으로는 '산행 휴양 활동' 유형(23.7%), '관광·편익시설과 연계한 간접이용가치'(12.4%), '일상적 간접이용가치'(10.7%), '영감 활동'(11.2%), '계절성이 있는 휴양 활동'(6.2%), '자연 감상 및 정적 휴양 활동'(4.3%), '문화유산 가치'(3.7%), 와 관련한 7개 유형의 문화서비스로 해석하였다. 다음으로 13개의 문화서비스 관련 토픽에 대해, 도시림으로서의 특성과 공간적 평가 가능성을 검토하여 최종적으로 도시림 문화서비스에 대한 총 8개 평가지표를 도출하였다. 본 연구의 결과는 기존의 문화서비스 평가에서 많이 사용되던 MA의 생태계서비스 분류체계가 현장을 반영하지 못하는 한계를 극복하고자 국내 사정에 맞는 도시림의 문화서비스의 평가지표를 범주화했다는 점에서 의미가 있다. 또한 연구에서는 대용량의 이용자 인식 및 경험 자료를 활용하여 문화서비스의 수요를 해석하고 도출하는 방법론을 제시했다는 점에서 의의가 있다.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제24권1호
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• pp.17-23
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• 2018

본 논문은 인지기능장애를 동반한 환자를 검사하고, 재활치료와 인지기능 평가를 하는데 사용될 수 있는 전자펜 기반의 시스템을 제안하고 있다. 제안된 시스템은 기존에 병원에서 널리 사용 중인 종이와 펜을 활용한 라인추종시험(Line tracing test; LTT)을 그대로 응용함으로써, 환자와 치료사가 거부감 없이 새로운 시스템을 적용할 수 있도록 하였다. 개발된 시스템의 정확성과 효과를 검증하기 위하여 성인 남녀 20명을 대상으로 시험한 결과, 전자펜을 활용한 측정치와 사람이 직접 측정한 측정치 간의 신뢰도가 0.90으로, 효과크기는 0.38로 평가되었으며 이는 전자펜을 활용한 검사 결과를 충분히 신뢰할 수 있음을 의미한다. 이와같이 신뢰성을 유지하는 반면, 검사 결과를 산출하는 시간에 있어서 사람이 직접 산출하는 경우 평균 48.2초가 소요되는데 반하여 전자펜을 기반으로 하는 방식의 경우 실시간으로 평가 결과가 기록되며 검사 종료 후 즉시(1초이내) 결과가 산출되기 때문에 시간 효율이 높음을 확인할 수 있다. 제안된 시스템은 파킨슨병, 심장마비 등으로 인한 뇌손상 환자의 인지기능장애 검사에 활용될 수 있다.