• Journal of Environmental Health Sciences
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• v.32 no.4 s.91
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• pp.268-274
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• 2006

In this study in order to evaluate the growth of RF propagation exposure rate generated according to the enhancement of its use, it is proposed for the ground to be able to examine and to contemplate the correlation between the human health and RF propagation exposure rate by measuring and analyzing the RF exposure source and exposure rate in an indoor environment. As a result of research, it is analyzed that the main exposure source of critically making effect in indoor environment is the frequency hand if radio broadcasting, mobile communication, wireless LAN, digital broadcasting, home appliance, etc., including the TV broadcasting. Among these, it is shown that the TV broadcasting and mobile communication band are the highest. And it is the concluded that RF exposure rate of the environmental sensitive equipment, like an institution for the aged, has lower possibility to exceed the human RF protection criteria by this evaluation.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2005.07a
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• pp.26-28
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• 2005

In this paper, degradation in field-aged PV modules including degradation of interconnect, discoloration of encapsulant and hot spot have been observed and analyzed. From the results, photovoltaic module installed for 15 years shows around 13~20% drop of electrical properties due to the interconnect degradation and PV module passed 19 years has been found to drop of around 20% mainly by the encapsulant discoloration. Fill factor of the electrode oxidized photovoltaic module has been dropped by the amount of 6~10% due to the change of irradiance. It is because maximum voltage(Vmp) decreases according to the increase of irradiance.

• Journal of the Korea Fashion and Costume Design Association
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• v.15 no.3
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• pp.99-108
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• 2013

This paper investigated and analyzed the status of students for jobs in textile industry for proposing the basic data for more effective labor supply to textile industry in northern region of Gyeonggi-do. The survey was conducted with 55 students in the middle aged class living in northern region of Gyeonggi-do who participated in the field practice education program related to industry business from April to June, 2013. The analysis results are described as below. For the satisfaction on the curriculum, 45.5% of the subjects showed the highest satisfaction on the education program. 65.5% desired the full-time employment in the textile business after the education. 78.2% of the subjects agreed that the education program for helping employment and recruitment in textile industry was the essential project in the current reality when there is a serious lack of field workers. Significant number of subjects answered that the education program should be implemented through the academy and business cooperation between the relevant departments in colleges and textile business. Although the subjects in this paper were very limited, the survey results would be important data to prepare the approach for improving the supply and demand of labor in textile business in the future as well as the starting point for a project to create new jobs for middle-aged women in the Northern region of Gyeonggi-do.

• Journal of Chest Surgery
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• v.23 no.2
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• pp.407-415
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• 1990

A total of 69 patients were treated for congenital lung cysts at Seoul National University Hospital during the period between 1960 and Aug, 1989. They were 37 patients of bronchogenic cyst, 18 patients of pulmonary sequestration, 7 patients of congenital cystic adenomatoid malformation [C.C.A.M.], and 7 patients of congenital lobar emphysema. In cases of bronchogenic cyst, involved age was variable from 7 months to 53 years and most cases were asymptomatic. They were located 14 cases in the right lung, 6 cases in the left lung and 17 cases in the mediastinum. Their sizes were also variable from 2.5 to 12 cm and most of them except 3 cases were solitary cysts. There were 6 cases that had bronchial communication. In cases of pulmonary sequestration, aged from 3 months to 29years, all were intrapulmonary type. 15 cases of them were found in the left lower field and 3 cases in the right lower field. Anomalous vessels were confirmed in 16 cases by aortography and/or surgical exploration. In cases of congenital cystic adenomatoid malformation, aged from 7 days to 6 years, 3 cases of infants were admitted due to severe dyspnea and cyanosis but the remaining 4 cases were admitted due to large cyst or abscess on chest roentgenogram. 3 cases were located in the right lung and 4 cases in the left lung. In cases of congenital lobar emphysema, aged from 14 days to 11 years, 6 cases were located in the right lung and one case was located in the left lung. All of them were male and had shown some degree of dyspnea from birth There were 2 cases of mortality, one in C.C.A.M and one in congenital lobar emphysema. But the remaining cases were well treated and recovered with the surgical resections.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.11
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• pp.1420-1427
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• 2019

Super aged society, Japan actively uses Information Communication Technology(ICT) as one of solving methods for various social problem. Especially, for Korea where soon will become super aged society, it would be meaningful to examine the current policy trends and utilization of senior support using ICT in Japan. This study explores the policy trends and utilization of senior support using ICT in Japan through literature review, and then proposes some suggestions as follows. Opportunities for practical use of ICT should be widened in the field of senior support, and efforts are needed to build an information linkage network between institutions for senior support because linkage between care sector and medical sector is important for the elderly support. Besides, simplification of paperwork and easing of burden of care providers or workers in the field should be sought by development and dissemination of various robots. Moreover, the spread of technology for emotional support and stability should be actively pursued by using ICT.

• Journal of Digital Convergence
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• v.10 no.5
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• pp.321-326
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• 2012

This study is conducted to find ways to develop design and research activities on personal belongings for the aged generation and aims to promote the industry and improve welfare of the elderly population by enhancing their quality of lives. Researches on policy papers, journals and published books show high growth potentials for elderly related industries due to rapid aging, retirement of baby boomer population and quality-oriented life styles. Regulations and standard, however, are lacking and, with shortage of R & D investment, human resources have not been secured in this industry. This is a niche market that has definite consumers. Therefore, it has been confirmed that when design and research efforts are made in this field, it can contribute to the benefit of aged generation as well as the development of the national economy.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.31 no.6
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• pp.372-376
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• 2018

The effects of off-state bias stress on the characteristics of p-type poly-Si TFT were investigated. To reduce the gate-induced drain leakage (GIDL) current, the off-state bias stress was changed by varying Vgs and Vds. After application of the off-state bias stress, the Vgs causing GIDL current was dramatically increased from 1 to 10 V, and thus, the Vgs margin to turn off the TFT was improved. The on-current and subthreshold swing in the aged TFT was maintained. We performed a technology computer-aided design (TCAD) simulation to describe the aged characteristics. The aged-transfer characteristics were well described by the local charge trapping. The activation energy of the GIDL current was measured for the pristine and aged characteristics. The reduced GIDL current was mainly a thermionic field-emission current.

• 한국체육학회지인문사회과학편
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• v.58 no.3
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• pp.123-141
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• 2019

The purpose of this study is to explore the ways of savoring of physical activities in middle-aged women based on the savoring theory of positive psychology. The first step was to understand the background of exercise participation experience and to provide basic information about savoring method. In the second stage, we used the open questionnaire to collect the savoring methods used during the exercise, and then, in-depth interviews were used to specify the savoring method. Open questionnaires were categorized according to the similarity of content and then nominated based on the savoring method. In-depth interviews were conducted to explore the cases of each method in detail. As a result, middle-aged women were found to use the savoring methods such as sharing with others, celebrating, comparing, feeling fine, blessing, expressing with behavior in physical activity. Through in-depth interviews, each case of savoring was embodied based on the savoring theory of positive psychology. Based on the results of the study, the possibility of applying the savoring method in the field of exercise instruction of middle-aged women and possibility of developing the savoring related program were discussed.

• Transactions on Electrical and Electronic Materials
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• v.9 no.4
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• pp.147-150
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• 2008

Porcelain suspension insulators aged for 1, 5 and 10 years on Korean transmission lines and new insulators are tested for autoclave expansion. The compressive strength of the insulators aged in an autoclave with conditions of $250\;^{\circ}C$ and at 20 atm for 30 minutes, was about $7.6\;kgf/mm^2$, which is close to that measured on insulators aged for 10 years in the field. From simulation results, the cement displacement changed linearly with temperature. At a temperature of $200\;^{\circ}C$, the shear stress was approximately $7\;kgf/mm^2$; a stress that is brought about by a 0.07 % expansion of the cement. It is evident that the cement would fracture at a 0.07 % expansion, because the cement has about 7 to $9\;kgf/mm^2$ flexure strength. A turning point in the shear stress with mechanical load occurred at 0.02 % cement expansion. From an analysis of the porcelain body it is shown that there is sufficient margin of strength to guard against fracture of the porcelain body even for a cement expansion more than 0.12 %.

• Proceedings of the SAREK Conference
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• 2008.06a
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• pp.569-574
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• 2008

Recently, the domestic remodeling market is increased in scale. This study is to develop the sanitary piping system which improves quality of life and facility performance when the aged public housing is remodeled. Above all, we found out three standard floor plans in bathrooms of the public housing. And then, the plan and section types of the sanitary piping system were developed for the on-floor piping, a construction cost of each section types was estimated to review the economical fact. Also, the field mock-up test was performed in the type of the pipe shaft with on-floor pit. In result, the developed sanitary piping system was available for the remodeling public housing without a great facility cost. Additionally, the sanitary pipe was replaced easily through the shaft and on-floor fit. And a noise was reduced to a lower unit when the water flowed down.