• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.634-636
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• 2001

최근 국내에 공개 운영 체제인 리눅스 시스템의 증가함에 따라서 보안에 중요성이 커지고 있는데 LKM 백도어는 커널 소스를 변경 하기 때문에 강력한 기능을 가지고 있어, 악의적인 코드로 인해 시스템에 근피해를 입힐 수 있다. LKM백도어 방지에 대한 여러 가지 방법이 소개가 되었지만, 대부분의 경우 커널을 수정해야 하기 때문에 설치가 쉽지 않으며, 사용의 제약이 많다. 따라서 본 논문에서는 커널에 의존하지 않고 insmod안에 LKM을 탐지를 할 수 있는 시스템을 설계를 하며, 일반적인 모듈과 LKM 백도어 모듈을 구분하여 일반적인 모듈은 정상적인 진행을 하고, LKM 백도어에 대해서는 로딩을 할 수 없는 안정적인 사용을 할 수 있는 시스템을 제안 한다.

• (The)Study of the Eastern Classic
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• no.66
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• pp.193-226
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• 2017

This writing establishes identity of JinSeBaek, a male protagonist from a classical novel Hajinyangmunrok, through examining his relationship with a female character named HaOkJu. The character JinSeBaek was analyzed with attachment theory. JinSeBaek is a type of character who openly expresses his emotions. The evidence that JinSaeBaek falls in love with HaOkJu at a first sight was mainly shown through his physical affection with her. After the breakup, JinSeBaek expresses sadness, depression, and anger, as well as sheds tears. Although JinSeBaek repeatedly breaks up and gets back together with HaOkJu, JinSaeBaek consistently shows his desire to be with HaOkJu. Expressing true emotions was not ideal characteristic for men in this era. JinSaeBaek develops attachment to HaOkJu after he loses his parents, whom he has previously developed attachment to, but repeated break ups with HaOkJu leads to separation anxiety. Although his separation anxiety is caused by HaOkJu, it is also HaOkJu who can resolve the anxiety. The fact that JinSaeBaek honestly expresses his emotions and develops abnormal attachment to woman makes JinSaeBaek unique from other male protagonists. A character like JinSaeBaek is not common in other fictional novels or romance novels as well. Thus, JinSaebaek is claimed to be extraordinary character in literature.

• The Korean Publising Journal, Monthly
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• s.336
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• pp.140-141
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• 2003

• The Korean Publising Journal, Monthly
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• s.331
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• pp.83-85
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• 2003

• The Korean Publising Journal, Monthly
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• s.335
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• pp.71-73
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• 2003

• The Korean Publising Journal, Monthly
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• s.337
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• pp.140-141
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• 2003

• The Korean Publising Journal, Monthly
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• s.332
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• pp.66-68
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• 2003

• The Korean Publising Journal, Monthly
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• s.334
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• pp.135-137
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• 2003

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.1
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• pp.245-251
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• 2015

In this paper, we present a design of PWM-controlled driving device for backlights in LED systems. The system can control either the brightness of the entire screen of backlights of LCD driven by LED or illumination or contrast of each partial segment of the entire screen. The PWM-controlled driving device includes the shift register that shifts the series data according to the clock signal prior to the generation of parallel data. It is also is comprised of a number of registers, a number of counters, a number of comparators, and a number of synchronizing gates (producing the PWM-controlled signals). The proposed device for backlights in LED systems can generate the PWM-controlled signal with a high degree of resolution without the increase of clock frequency. It also contains the PWM-controlled circuit that disperses and restrains the quantized noise.

• Korean Journal of Health Education and Promotion
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• v.25 no.5
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• pp.1-20
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• 2008

The purpose of this study was to investigate differences in regions and social environmental factors for centenarians between two countries. The sample sizes for this paper were a total number of centenarians in the two countries. Centenarians from different regions were examined in conjunction with the social environmental factors of the longevity approach. Statistical analysis was done using the Pearson's coefficient of correlation and regression equations. It became evident that centenarians among two countries lived in regions with lower income levels, lower tobacco consumption, lower levels of air pollution, onion and barley productions, fewer motor vehicles, a lower divorce rate, lower unemployment, soybean and garlic productions, and less water pollution. The finding imply that centenarians among two countries lead to a life of longevity is the result not only social environmental factors reactions that have fresh air, clean water and health food but also of health behaviors that have bacco consumption and divorce rate. Also, these support future studies of improvement of social environmental pollution, agricultural products of health food, and health behaviors of nonsmoking for life of longevity.