• The Transactions of the Korean Institute of Electrical Engineers C
• /
• v.52 no.10
• /
• pp.469-475
• /
• 2003

Resistive leakage current flowing ZnO blocks increases with its ages, which is an important indicator of arrester deterioration. However, a complicated circuitry is essential to measure the resistive leakage current included in the total leakage current, and the difficult handling of the measurement makes few applications to the fields. In this paper, we propose a resistive leakage current measurement device which is composed of a current detection circuit and an analysis program operated on a microprocessor. The device samples the input leakage current waveform digitally, and discriminate the zero-cross and the peak point of the waveform to analyze the current amplitude vs. phase. The capacitive leakage current is then eliminated from the total leakage current by using an algorithm to extract the resistive leakage current only. Also, the device can be operated automatically and manually to analyze the resistive leakage current even when the leakage current waveform is distorted due to various types of arrester deterioration. To estimate the performance of the device, we carried out a test on ZnO blocks and lightning arresters. From the results, it is confirmed that the device could analyze most parameters needed for the arrester diagnostics such as total leakage current. resistive leakage current, and the $3^rd$ harmonic leakage current.

• Journal of the Korean housing association
• /
• v.17 no.4
• /
• pp.47-55
• /
• 2006

As a new way of stabilizing the housing for the urban poor, the Korean government proposed 'Dagagu' Housing Purchase and Public Rental Program (DPPRP) and implemented a pilot program in 2004. The purpose of this study was to find out whether DPPRP could be an alternative measure to solve the housing problems facing the urban poor. Physical aspects and community conditions of 'Dagagu' housing purchased by the government will be evaluated. The changes in the tenants' perception of the quality of housing after moving in the current dwellings will be studied. 46 households were temporarily selected, who moved in the purchased public rental housing in 5 districts (DPPRP pilot area). And among them, 32 households were designated as the final subjects, which could do the interview. The surveyors made door-to-door visits to tenants' houses and conducted in-depth interview by using a questionnaire The effects of 'Dagagu' Housing Purchase and Public Rental Program can be summarized according to housing environment aspects and economic aspects as follows: After moving in the public rental housing, the respondents saw improvements in overall housing environment and were satisfied with the current housing. According to a survey on the rental fee before and after moving in public rental housing, the rental fee of the latter had greatly declined. Given that the quality of previous housing was inferior to the current housing, the lessened rental burden was very meaningful.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.14 no.11
• /
• pp.2541-2547
• /
• 2010

In this paper, we propose a design technique which replaces logic transistors of 1.2V with medium-voltage transistors of 3.3V having small off-leakage current in repetitive block circuits where speed is not an issue, to implement a low-power eFuse OTP memory IP in the stand-by state. In addition, we use dual-port eFuse cells reducing operational current dissipation by reducing capacitances parasitic to RWL (Read word-line) and BL (Bit-line) in the read mode. Furthermore, we propose an equivalent circuit for simulating program power injected to an eFuse from a program voltage. The layout size of the designed 512-bit eFuse OTP memory IP with a 90nm CMOS image sensor process is $342{\mu}m{\times}236{\mu}m$. It is confirmed by measurement experiments on 42 samples with a program voltage of 5V that we get a good result having 97.6 percent of program yield. Also, the minimal operational supply voltage is measured well to be 0.9V.

• Korean Journal of Biological Psychiatry
• /
• v.19 no.2
• /
• pp.77-83
• /
• 2012

Objectives : Although there have been studies that examine sex differences of the brain structures using magnetic resonance imaging, studies that specifically investigate cerebellar structural differences between men and women are scarce. The purpose of current study was to examine sex differences in structures of the cerebellum using cerebellar template and cerebellum analysis methods. Methods : Sixteen men and twenty women were included in the study. A MATLAB based program (MathWorks, Natick, MA, USA), Statistical Parametric Mapping 5 (SPM5) using the spatially unbiased infra-tentorial atlas template (SUIT) as the cerebellum template, was used to analyze the brain imaging data. Results : There was no significant difference in age between men (mean age=28.1) and women (mean age=27.2). Men showed higher gray matter density than women in two left cerebellar areas including the clusters in the lobules IV and V (a cluster located across the lobules IV and V), and the lobule VIIIb (lobules IV and V, t=4.75, p<0.001 ; lobule VIIIb, t=3.08, p=0.004). Conclusions : The current study found differences in cerebellar gray matter density between men and women. The current study holds its significance for applying the template specifically developed for the analysis of cerebellum.

• The Journal of Korean Medicine
• /
• v.36 no.3
• /
• pp.111-125
• /
• 2015

Objectives: The purpose of this study was to analyze the current cases of oriental medical injury relief data from Korea Consumer Agency (KCA), and to report the current change of oriental medical disputes pattern. Methods: Oriental medical injury relief cases processed by KCA from January 2010 to February 2015 were collected and analyzed. Results: 149 Oriental medical injury relief cases from KCA were analyzed for the study. The highest number that had been relieved was 43 in 2014. In monthly status, 18 case in September was The highest. According to the record, the bigger city had the bigger amount of relief cases which was 53(Seoul), 43(Gyeng-gi), 11(Busan) and so on. In age categories, 30s had the highest number of injury relief cases. The injury relief cases of package program had been rapidly increasing since 2013. Cancellation was the dominant claims cause of package program and consumer required the refund of prepayment. Breast augmentation was the majority treatment type of injury relief cases of package program. Average prepayment of package program was \3,166,085. Conclusions: This study finded that the major cause of oriental medical dispute was changed from side effect of clinical treatment to patient's satisfaction of medical service.

• Korean Journal of Community Nutrition
• /
• v.8 no.5
• /
• pp.736-743
• /
• 2003

The purpose of this study was to research the current home delivered meal (HDM) service programs for seniors living in the community. Fifty seven centers which operated a HDM service program were surveyed with respect to their administrative structure, menu management, food purchasing and production management, hygiene and equipment and facility. -Statistical data analyses were completed using the SAS 8.1 program for descriptive analysis and t-test. The results showed that 55 percent of the study group were from 70 to 79 years old. All of the participants received free HDM. As a result of the meal cost analysis, the meal cost at 56.1% of the HDM service centers was from ￦2,000 to ￦2,499 per meal. A total of 68.4% of the HDM service centers were operated without the services of a dietitian. According to the menu analysis, all nutrients except Vitamin B2 were at levels of more than 33% of the Recommended Dietary Allowances for Koreans. Although 96.6% of the HDM service centers required a therapeutic diet menu for the health of the elderly recipients, 68% of the directors responded that they could not afford to serve therapeutic meal. Food purchasing, menu planning and other foodservice management processes were handled by non-professionals, such as volunteers, cooks or social workers. Forty two percent of the HDM service centers never used standard recipes. For determining portion sizes, 75.4% of the HDM service centers depended on personal experience. Finally, the current HDM service programs for the homebound elderly were not operated systematically. It is suggested that professionally trained personnel should be included among the staff members to provide a more effective HDM service. The HDM service programs should be supported financially and systematically by the government.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2005.11a
• /
• pp.347-350
• /
• 2005

As a new way of stabilizing the housing for the urban poor, the Korean government proposed 'Dagagu' Housing Purchase and Pubic Rental Program (DPPRP) and implemented a pilot program in 2004. The purpose of this study is to fine out whether DPPRP can be an alternative measure to solve the housing problems facing the urban poor. Physical aspects and community conditions of 'Dagagu' housing purchased by the government will be evaluated. The changes in the tenants' perception of the quality of housing after moving in the current dwellings will be studied. 46 households were temporarily selected, who moved in the purchased public rental housing in 5 districts (DPPRP pilot area). And among them, 32 households were designated as the final subjects, which could do the interview. The surveyors made door-to-door visits to tenant's houses and conducted in-depth interview by using a questionnaire The effects of 'Dagagu' Housing Purchase and Public Rental Program can be summarized according to housing environment aspects and economic aspects as follows: After moving in the public rental housing, the respondents saw improvements in overall housing environment and were satisfied with the current housing. According to a survey on the rental fee before and after moving in public rental housing, the rental fee of the latter has greatly declined. Given that the quality of previous housing is inferior to the current housing, the lessened rental burden is very meaningful.

• 한국과학교육학회:학술대회논문집
• /
• 2009.02a
• /
• pp.75-75
• /
• 2009

• Nuclear industry
• /
• v.5 no.4 s.26
• /
• pp.21-24
• /
• 1985

• Radioisotope journal
• /
• v.20 no.4
• /
• pp.75-86
• /
• 2005