The purpose of this study is to identify the characteristics of aging-friendly technology that can be integrated into future smart homes in an aging society. The literature survey and content analysis method were used to collect and analyze data. Papers of the international journal ICOST (International Conference on Smart Homes and Health Telematics) that professionally deal with converged technologies were analysis units. Sixty-five papers among 215 papers published from 2007 through 2014 were selected on the basis of end-users orientation. Totally, out of 65 papers 76 technology items were extracted. Characteristics of those technologies were analyzed focusing on purpose and application methods. As results, in terms of purpose, the technologies were oriented to provide both of psychological and physiological support to the users, focusing on the safety, convenience, health and entertainment to extend independent life of the elderly. Among the application method such as building structure, furniture, product, wearable device and free movable robot, product were dominant. Through those results, the aging-friendly technology is expected to alleviate a wide range of issues in aging society.
Kim D.S.;An Y.J.;Lee W.H.;Choi B.O.;Chang M.H.;Baek Y.J.;Choi K.H.
Proceedings of the Korean Society of Precision Engineering Conference
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2005.06a
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pp.732-737
/
2005
Distal 3D Real Object Duplication System(RODS) consists of 3D Scanner and Solid Freeform Fabrication System(SFFS). It is a device to make three-dimensional objects directly from the drawing or the scanning data. In this research, we developed an office type SFFS based on Three Dimensional Printing Process and a industrial SFFS using Dual Laser. An office type SFFS applied sliding mode control with sliding perturbation observer(SMCSPO) algorithm for control of this system. And we measured process variables about droplet diameter measurement and powder bed formation etc. through experiments. Also, in order to develop more elaborate and speedy system for large objects than existing SLS process, this study applies a new Selective Multi-Laser Sintering(SMLS) process and 3-axis dynamic Focusing Scanner for scanning large area instead of the existing $f\theta$ lens. In this process, the temperature has a great influence on sintering of the polymer. Also the laser parameters are considered like that laser beam power, scan speed, scan spacing. Now, this study is in progress to eveluate the effect of experimental parameters on the sintering process.
This study is focused on the review of buyer's remedy resulting from the breach of seller's duty in contracts for the international sale of goods focusing on UNCCIS, 1980 and the problems and suggestions of proper ideas for solving the problems. First problem on the buyer's remedy is related to the breach of seller's duty on del ivory of the contracted goods. When seller has failed to deliver the contracted goods to buyer within the stipulated periods, buyer can treat the contract as avoided and claim damages from seller. By the way, since UNCCIS does not provide any stipulation on the time of buyer's avoidance of the contract, buyer can delay the time of avoidance when the price of contracted goods is rising rapidly and enlarge the amount of damages, Since this stipulation is clearly unreasonable, proper solutions are required for UNCCIS. Second problem is related to the breach of seller's duty on deliver of goods which are of the quantity, quality and description required by the contract and which are contained or packged in the manner required by the contract. When seller has failed to deliver goods which are confirm with the contract, buyer may have one of the two rights of damages and the price reduction according to UNCCIS provided that he does not choose the avoidance. But, since the character and position of the price reduction as a buyer's remedy are not sufficient solutions, more detailed review on this point is required. Third, Seller's duty to provide documents is very important for overseas trade, but UNCCIS does not provide any specific buyer's remedy in comparison with the other remedy and also does not provide any stipulation on the Letter of Credit which have important roles for a device of setting payment in overseas trade. This means that trade customs and practice have not sufficiently reflected in UNCCIS. As the problems mentioned above may decrease the evaluation of buyer's remedy in UNCCIS and, furthermore, that of UNCCIS itself, proper solutions on these points are needed.
Lysozyme crystallization was performed by using flow-focusing chip in droplet-based microfluidic system. Water-in-oil droplets were formed in the system and collected on petri-dish and cross type mold. Liquid-liquid reaction of lysozyme and sodium chloride occurred in the droplet and crystals were observed through microscope. Solution pH was varied as 4.8 and 7.2. Crystals of polyhedron and plate-like shape were obtained at pH 4.8, while needle structure crystals formed at pH 7.2. Lysozyme in single droplet for two pHs were crystallized with constant or decreased droplet size. However, crystals at pH 4.8 were only obtained in the droplet of which size was increased by the interaction between droplets. Droplet volume did not change at pH 7.2 and crystals formed in both droplets.
In the 21st century, as localization is reinterpreted as an important part of globalism and as local culture is recognized as a device to increase the competitive power, every city is trying to develop its identity and improve its image while coping with change of the international and domestic environment. Therefore, basic research was preformed to establish the city image identity of Gwangju and as a result, an ideological slogan " City of Light and Life, Gwangju" and basic factors were developed. This study aims to analyze the condition of the city, focusing on design factors that the city image is comprised of, and establishes a long-term strategy for urban environment development by considering the developmental potential of the city. and focuses on case studies for establishment of an image suitable for Gwangju. Case studies focusing on the urban environmental development were presented and the results were applied to Gwangju. From the results, further studies can be pursued according to a long-term strategy. strategy.
Journal of the Korean Institute of Landscape Architecture
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v.29
no.1
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pp.41-50
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2001
The seoul Metropolitan Government has announced a program of the realization of a Korean garden named 'Seoul Park' in Paris 'Jardin d'Acclimatation' in June, 2000. The program for 'Seoul Park' in Paris has double objectives which aims celebrating the 10th anniversary of the establishment of sisterhood relationship between Seoul and paris and to promote the mutual cooperation and the amity between the two metropolitan cities. The purpose of this study is focusing on the issues on the setting procedure of characteristics of the 'Seoul Park', type of the Park, and design realization of expression of Korean identity, and the cultural consolidation between parks in Korean and French. The Seoul Park will be constructed on the shore of a lake of the Jardin d'Acclimatation, and the size of the area is 4,675㎡. In July, a design competition for the preparation of a schematic plan of the Seoul Park was held in Seoul. In this competition, the author won with a scheme which proposed a Korean Garden as expression of "between" two cultures which is fitted into the French environment. Although, the Seoul Park in Paris is a small Korean garden, its significance would be emphasized in terms of that it represents the adaptation of a Korean culture to the French territory. Throughout the winning entry, we could recognized hat the author defines Korean garden as 'time device', and 'Seoul Park' as 'Situation' which is the consolidation of the cultures between korea and France. And also the author pursued Korean garden as a net type of 'sequence of the event'. In this paper, we have discussed the concept and the schematic plan of the winning entry. focusing on following issues: Definition of the garden; Form of the garden; Expression of Korean garden; Representation of the reconciliation between two environments. Since many parts of the garden are under designing, and the discussion on the resetting of the existing trees in the garden is in progress, more specific investigation will be done in the next thesis.
Functional brain imaging techniques have been used to diagnose psychiatric disorders such as dementia, depression, and autism. Recently, these techniques have also been actively used to study hearing loss. The present study reviewed the application of the functional brain imaging techniques in auditory research, especially those focusing on hearing loss, over the past decade. EEG, fMRI, fNIRS, MEG, and PET have been utilized in auditory research, and the number of research studies using these techniques has been increasing. In particular, fMRI and EEG were the most frequently used technique in auditory research. EEG studies mostly used event-related designs to analyze the direct relationship between stimulus and the related response, and in fMRI studies, resting-state functional connectivity and block designs were utilized to analyze alterations in brain functionality in hearing-related areas. In terms of age, while studies involving children mainly focused on congenital and pre- and post-lingual hearing loss to analyze developmental characteristics with and without hearing loss, those involving adults focused on age-related hearing loss to investigate changes in the characteristics of the brain based on the presence of hearing loss and the use of a hearing device. Overall, ranging from EEG to PET, various functional brain imaging techniques have been used in auditory research, but it is difficult to perform a comprehensive analysis due to the lack of consistency in experimental designs, analysis methods, and participant characteristics. Thus, it is necessary to develop standardized research protocols to obtain high-quality clinical and research evidence.
The purpose of this study is to find the application point of hearing augmentation technology development through examining the risk context experience of people with hearing impairment and the use of assistive device used as an alternative technology. Data of 355 people with hearing impairment with official disability grading was analyzed. The results of this study are first, research participants had no experience of recognizing any sound or vibration in situations highest in the order of means of transportation, material, and nature. Especially the ratio of being unable to recognize the sound and vibration of means of transportation was high, which implies the high possibility of people with hearing impairment experiencing risk. Secondly, the risk context that people with hearing impairment will most likely to experience are highest in the order of traffic accident, pedestrian accident, and daily life at home. Thirdly, the recognition of 2G phone/smart phone, vibrating digital alarm clock, light bar, vibrating wrist watch as assistive device for risk context awareness and notification was high and the satisfaction level of 2G phone/smart phone was the highest. Fourthly, the research participants had high recognition of assistive device for communication in the order of hearing aid, smart phone, videophone, cochlear implant and 2G phone and it was found that the satisfaction level and communication improvement level was the highest using the smart phone. Lastly, for the development of hearing augmentation technology the research participants recognized the importance of portable/wear convenience, price, and motion accuracy and for notification delivery means they preferred the method of using sight(text and light). Based on the results of this study policy and practical plans for hearing augmentation technology development for people with hearing impairment in risk context are proposed.
Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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v.8
no.7
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pp.475-484
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2018
The propulsion control device of an electric railway vehicle is a key main component corresponding to an engine of an automobile, and a device for controlling this is a device called a GDU (Gate Drive Unit). Also, when the frequency of failure of the propulsion control system was analyzed, the nonconformity ratio of GDU was the highest. GDU was not able to access core technologies due to the introduction of foreign products, and there were general problems with overall maintenance activities due to discontinuation of GDU of the manufacturer. The GDU has reached the end of its life with 23 to 14 years of long-term use.In order to solve these problems, this study was designed to identify the proper life span by analyzing compatible GDU's acquisition and failure, and to improve the existing system of maintenance focusing on health inspection. Maintenance of the components with a short life span compared to the entire service life is essential. Most foreign parts introduced at the beginning of the construction are not replaced due to technical problems or long-term operation. However, due to the characteristics of railway vehicles with a long life span of more than 25 years, it is necessary to maintain them for a long period of time. The study should be more concrete and empirical. The replacement type GDU of capacitors was able to easily measure the life of the capacitance by removing the capacitor modules, measure the life span of each unit test, and accurately perform preventive maintenance of the capacitor.
This study investigated differences in presence, immersion, and situational interest in small group learning using augmented reality, based on the degree of tool sharing. 84 eighth-grade students participated in small groups of four. Each group was randomly assigned to one of three environments based on marker and device sharing: the shared environment (shared marker and device usage), the mixed environment (shared marker and individual device usage), and the individual environment (individual marker and device usage). Small group learning using augmented reality was conducted for three class periods, focusing on the "Characteristics of Matter" unit. One-way ANOVA results for the dependent variables revealed that, compared to the shared environment, presence and situational interest were significantly higher in the mixed environment, while immersion and situational interest were significantly higher in the individual environment. MANOVA results for the sub-components of each dependent variable showed significant differences in realness for presence, antecedents and experiences for immersion, and instant enjoyment, novelty, and total interest for situational interest. Analysis of interviews and classroom observations indicated that students in shared and individual environments tended to use their devices individually when utilizing augmented reality. However, in mixed environments, students showed a tendency to use their devices collaboratively, leading to more active interactions. Based on these findings, environments for using tools to enhance the effectiveness of small group learning using augmented reality are discussed.
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