• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.1
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• pp.85-93
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• 2018

Biometric user authentications, day after day, propagate more to human life instead of traditional systems which use passwords and ID cards. However, most of these systems have many problems for given biometric information such noisy data, low-quality data, a limitation of recognition rate, and so on. To deal with these problems, I used Dual QML which is non-linear classification for classifying correctly the real-world data and then proposed preprocessing method for increasing recognition rate and performance by segmenting a specific region on an image. The previous published Dual QML used face, palmprint, ear for the experiment. In this paper, I used iris for experiment and then proved excellence of Dual QML at iris recognition. Finally I demonstrated these results (e.g. increasing recognition rate and performance, suitability for iris recognition) through experiments.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.75-80
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• 2018

This study was conducted to provide basic data on the dental hygienists Happiness Index and identify factors influencing dental hygienists A self-administered questionnaire survey was conducted dental hygienists in Jeollabuk-do(Jeonju, Iksan, Gunsan) from October to November 2017. Data were analyzed using t-test, ANOVA and multiple regression. As the result of study, Happiness Index of socioeconomic level has increased when the more work career, and more monthly wage, and better interpersonal relationship. Happiness Index of psychological well-being has increased when younger group and more monthly wage, and better interpersonal relationship. Therefore, in order to increase the happiness index of dental hygienists, economic compensation such as incentives and if the education of the communication method of the cases where the most difficulty case of the communication situation in the human relationship is confirmed is preceded, the quality of the medical service provided to the patient due to the happy working life will be improved.

• Journal of the Economic Geographical Society of Korea
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• v.24 no.4
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• pp.446-462
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• 2021

The aim of this paper is to examine the long-standing regional disparities and social division in the UK which are considered one of the crucial facts of Brexit. Since Brexit, also, the changed regional development policies are reviewed. Regarding policy perspective, we delve into the process of the UK government's strategic policy choices, such as privatisation of public enterprises and financial reform, amid the neoliberal globalisation in the late 1970s, drawing its implication to us having similar problems. Besides, the UK's self-sustaining regional development fund, policy, and changed governance are dissected with several ongoing debates. Finally, this study asserts the necessity of the social consensus of regional disparity policies and the establishment of the spatial environment particularly in regions left behind, giving the quality and equity of life.

• Korean Journal of Social Welfare Studies
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• v.40 no.1
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• pp.5-35
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• 2009

The purpose of the phenomenological study was to explore the meaning of volunteer activity according to workers' perception. In order to accomplish the purpose of the research, the seven workers with volunteer experiences were asked a question, "What do volunteer activities means to them?" Data was collected through in-depth interview, recoded videotapes. In addition, the data was analyzed by a Colaizzi's content analysis. The findings showed that workers' volunteer activities were identified as 18 themes and 6 categories. The six categories consist of 'initiating an action', 'being close to people in need', 'experiencing the difficulties of the people in need', 'increase of awareness of fellowship', 'increase of stability at work', 'self-growth'. The meaning of workers' volunteer activity was defined as a process to get to know their neighbor within their social boundaries, and to gradually change their life. Additionally, the findings are also expected to help understand worker's volunteer activity, and to promote the quality of human resources in the social welfare areas.

• Journal of the Ergonomics Society of Korea
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• v.31 no.5
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• pp.637-646
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• 2012

Objective: The aim of this study was to develop the adaptive device for severe physical disabilities using smart device in the driving simulator and its performance evaluation. Development of appropriate driving adaptive device for the people with serious physical limitation could contribute to maintain their community mobility. Background: There is lack of adaptive driving devices for the people with disabilities in Korea. However, if smart device systems like iPod and iPhone are used for driving a car, the people with serious physical limitations can improve their community mobility. Method: Both gyroscope and accelerometer from iPod were used to measure the tilted angle of the smart device for driving. Customized Labview program was also used to control three axis motors for steering wheel, accelerator and brake pedals. Thirteen subjects were involved in the experiment for performance evaluation of smart device in simulator. Five subjects had driver licenses. Another four subjects did not have driver licenses. Others were people with disabilities. Results: Average driving score of the normal group with driver license in the simulator increased 46.6% compared with the normal group without driver license and increased 30.4% compared with the disabled group(p<0.01). There was no significant difference in the average driving score between normal group without driver license and disabled group(p>0.05). Conclusion: The normal group with driver license showed significantly higher driving score than other groups. The normal group without driver license and disabled group could improve their driving skills with training in simulator. Application: If follow-up studies would be continued and applied in adapted vehicle for on road environment, many people with more severe disabilities could drive and improve the quality of life.

• Atmosphere
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• v.25 no.1
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• pp.141-148
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• 2015

Recently increased anthropogenic aerosols change the radiative energy balance and affect human life. The management of air quality requires monitoring both the local emissions and transported pollutants. In order to estimate the quantitative contribution of long-range transport from remote sources on aerosol concentrations in Seoul, the airmasses were classified into five types with respect to their pathways. When airmass came from west over strong emission regions in China, high concentrations of $PM_{10}$, $PM_{2.5}$, black carbon (BC), organic carbon (OC), and elemental carbon (EC) were found, even higher than those for the stagnated airmass. High OC concentrations were found when airmass came from north while BC, EC, and $PM_{2.5}$ concentrations were lower than those of the stagnated airmasses. During dust events, the $PM_{2.5}$ and $PM_{10}$ concentrations increased significantly while carbonaceous aerosol concentrations did not increased. The temporal variations of aerosol concentrations in Seoul were affected by the seasonal variations of airmass pathways. The high $PM_{2.5}$ concentrations over $100{\mu}g\;m^{-3}$ appeared most frequently when the airmasses came from west.

• Journal of Family Resource Management and Policy Review
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• v.9 no.4
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• pp.95-112
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• 2005

The purpose of this study is to identify the characteristics and the limits of, as well as, Propose an improvement of, the government based policies that support poor single families. For this purpose, this study has analyzed the government based supporting policies for poor single families into four different aspects; income support, dwelling support, medical support, and child-caring support. Also, in order to analyze the situation of the poor single family as well as the limits of the government based supporting policies, an in-depth interview has been conducted with 8 personnel (including 7 single parents and 1 social worker). In the final analysis, a total of 5 case studies have been used to identify the characteristics of the government based supporting policies for various poor single families. As a result, it turned out that the economic situation of the poor single families were extremely unfavorable, and the quality of life was extremely low in the aspects of dwelling, nutrition, health child nurturing and education. Therefore, we are proposing the following supporting policies for the improvement of these families' living conditions: increasing income levels, providing job opportunities, securing dwelling places, providing medical support, and implementing child care benefit policies. Furthermore, we are proposing an expansion of the human services provided by the healthy family support center to these poor single families.

• Fire Science and Engineering
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• v.33 no.2
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• pp.85-97
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• 2019

Today, building constructions are becoming larger, higher, deeper, and complex to improve quality of human life and meet various needs. As a result, new design space for non - typically standardized space has been created, and targets for performance-based design are also becoming increased. An evacuation safety evaluation of performance-based design should be compared with ASET and RSET estimation so that the value of RSET does not exceed the value of ASET. However, there is a problem that it is difficult to secure the safety with using the performance-based design evaluation method currently in use, especially in case of the underground parking lot, because it has wide compartment area and various routes for evacuation. Therefore, in order to overcome these problems, this paper first investigates the simulation setting method of the performance-based design that is currently in use, and then conducts two fire simulations and three evacuation simulations for underground parking lots each time, so performs the evacuation safety evaluationin total six cases of situations. Here this paper analyzes the problem with comparative evaluation research and suggests the better solution for improved evacuation safety evaluation of performance-based design.

• Design Convergence Study
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• v.15 no.2
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• pp.237-250
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• 2016

Along with rapid development, progress of the network technology and digital information technology, human are stepping into the intelligent society of internet. Thereby the quality of living environment and working environment are keep improving. Under the big background of internet era, the timeliness and convenience of smart home system has been improved greatly. While lots of smart products have gradually penetrated into people's daily life. The household appliances are among most popular ones. This paper is intended to compare smart features of household living products among most representative brands in China, Japan and South Korea. The smart features include self-learning, self-adapting, self-coordinating, self-diagnosing, self-inferring, self-organizing, and self adjusting. As result, most smart features of these products showed great similarity. While some features were dominated according to countries such as remote control feature in Korea, energy saving feature in Japan, and one button operation feature in China.

• BMB Reports
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• v.57 no.5
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• pp.256-261
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• 2024

In the context of aging, the susceptibility to infectious diseases increases, leading to heightened morbidity and mortality. This phenomenon, termed immunosenescence, is characterized by dysregulation in the aging immune system, including abnormal alterations in lymphocyte composition, elevated basal inflammation, and the accumulation of senescent T cells. Such changes contribute to increased autoimmune diseases, enhanced infection severity, and reduced responsiveness to vaccines. Utilizing aging animal models becomes imperative for a comprehensive understanding of immunosenescence, given the complexity of aging as a physiological process in living organisms. Our investigation focuses on Cisd2, a causative gene for Wolfram syndrome, to elucidate on immunosenescence. Cisd2 knockout (KO) mice, serving as a model for premature aging, exhibit a shortened lifespan with early onset of aging-related features, such as decreased bone density, hair loss, depigmentation, and optic nerve degeneration. Intriguingly, we found that the Cisd2 KO mice present a higher number of neutrophils in the blood; however, isolated neutrophils from these mice display functional defects. Through mass spectrometry analysis, we identified an interaction between Cisd2 and Calnexin, a protein known for its role in protein quality control. Beyond this function, Calnexin also regulates calcium homeostasis through interaction with sarcoendoplasmic reticulum calcium transport ATPase (SERCA). Our study proposes that Cisd2 modulates calcium homeostasis via its interaction with Calnexin and SERCA, consequently influencing neutrophil functions.