• The Journal of the Korea Contents Association
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• v.13 no.9
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• pp.204-215
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• 2013

The purpose of the present study was to investigate the role of social support and hardiness on the relationship between parenting attitudes and subjective well-being. The participants of this study were 318 university students and analyses for this study was conducted by using SPSS 15.0 and Amos 7.0. The major results were as follows; Social support confirmed mediating variable between parenting attitudes and hardiness, and hardiness confirmed mediating variable between social support and subjective well-being. That is, parenting attitudes had some effect on subjective well-being through hardiness based on social support. Finally, the needs of development about the counseling and the education contents as a special intervention was discussed, and that contents were reflected social support and hardiness to be improved. Also, limitations and implications of subsequent further study were suggested in this research.

• Journal of KIISE:Computer Systems and Theory
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• v.34 no.8
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• pp.348-366
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• 2007

Capacity of modem storage devices is becoming larger than yesterday and integration of disk is increasing. It refers that physical errors can damage a lot of digital information on storage devices. So we propose file system test framework in this paper to test integrity and robustness of file systems. We develop the tool for generating bad sectors on disks and the tool which creates all physical errors defined in storage devices. We also develop the tool for immediately monitoring the condition of read and write execution on storage devices. So, by integrating those tools, we develop FORT, test framework for confirming robustness of file system. We analyze robustness of ext3 file systems by FORT. Lastly, we present draft of intelligent system merging file system and device driver's layer architecture.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.12C
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• pp.995-1003
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• 2010

The content-based hashing for authentication and copy protection of image, video and 3D model has to satisfy the robustness and the security. For the security analysis of the hash value, the modelling method based on differential entropy had been presented. But this modelling can be only applied to the image hashing. This paper presents the modelling for the security analysis of the hash feature value in 3D model hashing based on differential entropy. The proposed security analysis modeling design the feature extracting methods of two types and then analyze the security of two feature values by using differential entropy modelling. In our experiment, we evaluated the security of feature extracting methods of two types and discussed about the trade-off relation of the security and the robustness of hash value.

• The Journal of the Convergence on Culture Technology
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• v.1 no.4
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• pp.51-57
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• 2015

This study investigated the relationship among stress, hardiness and self-esteem of the middle-aged woman. The move to seek the direction of desirable lifetime-cycle training for middle-aged woman in order to improve the hardiness and self-esteem, decrease the stress of the middle-aged woman. This study was conducted among 200 middle-aged woman living in Seoul, Gyeonggi-do, Chungcheong region as a correlation research. Data collection period was from April 1, 2015 to April 30. Data were analyzed by t-values, Correlation coefficient using the SPSS Program 18.0. Stress, hardiness and self-esteem of the middle-aged woman showed a correlation between net. Therefore, to improve the middle-aged woman hardiness and self-esteem so that needed to decrease the stress development and application of efficient programs.

• Proceedings of the KIEE Conference
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• 2001.07d
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• pp.2810-2812
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• 2001

본 논문에서는 독립성분해석을 이용한 영상분리에 있어서의 잡음에 대한 강인성에 대한 주성분해석과 비교 연구를 함으로써, 독립성분해석(Independent Component Analysis, ICA)기법의 효율성을 고찰하고 분석하고자 한다. 원래의 인식 시스템 모델에 잡음을 주었을 때, ICA를 이용한 영상 분리의 잡음에 대한 강인성은 주성분 해석(Principal Component Analysis, PCA)기법에서 보다 더 잡음에 강인한 성질을 내포하고 있는데, 이는 PCA 보다 ICA가 분리하려는 영상정보의 상호관계를 더 약화시키는 작용을 하기 때문이다. 이러한 특성은 모의실험을 통해 확인되었다.

• Korean Journal of Adult Nursing
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• v.17 no.5
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• pp.783-792
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• 2005

Purpose: This study was conducted to meta-analyze the effects of hardiness on health-related variables. Method: After review of 19 studies performed by Korean nurses, research variables, statistical data(r or F), and other methodological data were extracted and coded. Research variables were categorized under 5 groups such as health-related behavior, well-being, adaptation, stress, and support according to conceptual similarity. Using SAS program, 20 research variables and 34 effect sizes were calculated after eliminating heterogeneous data by Q-test, Results: Effects of hardiness on whole research variables was .512 and ranged from .322 to .643 by categories. The greatest effect was obtained from well-being category, whereas the smallest effect from stress category. All effect sizes were statistically significant. But fail-safe numbers were small and failed to achieve reasonable tolerance level. Conclusion: Results of meta-analysis indicated that hardiness has a moderate effect on health-related variables. But for improving the reliability of the results by minimizing publication bias, the more hardiness studies should be done.

• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.156-159
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• 2011

본 연구에서는 지적도면 정보에 대하여 불법 복제와 유통의 방지는 물론 유통 후에도 유통 경로를 파악하여 차단할 수 있는 디지털 워터마킹 기술을 개발하여 보고자 하였다. 연구성과로는 지적도면은 일반 지형도와 달리 워터마크의 삽입 및 검출 과정에서 왜곡이 없어야 하고, 또한 토지이동시 발생할 수 있는 다양한 공격에서 강인성을 가져야한다는 특성을 고려하여 주파수 영역에서의 워터마킹 삽입 및 검출 시스템을 개발하였다. 향후 연구에서는 구현된 워터마킹 시스템의 성능을 평가하여 보고자 지적도면의 위치정확도 분석에 기초한 왜곡정도를 분석하고, 다양한 토지이동 상황(분할, 합병, 접합, 이동, 회전 등)에 대한 강인성 및 검출율 등을 실험하고자 한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.11a
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• pp.388-391
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• 2020

최근 스마트폰과 어플리케이션의 기술 발전으로 일상생활에서 은행의 주거래 혹은 보안인증으로 생체정보를 이용하는 것이 급격히 확대되고 있다. 이러한 생체정보 보호를 위해 디지털 콘텐츠 내에 저작권자의 정보를 삽입하여 정보를 보호하는 기술인 워터마킹 기술을 도입하여 생체정보의 복제 혹은 도용 시에 발생할 수 있는 문제를 예방하는 것이 본 연구의 목적이다. 본 논문에서는 홍채 이미지에 DWT를 적용한후 QIM 방식을 이용해 임의의 QR코드로 워터마크를 삽입하여 홍채 코드를 추출한후 워터마크를 삽입하기 전의 홍채코드와 삽입 후의 홍채코드를 PSNR 통해 비교 분석하고 Stirmark 에서 제공하는 강인성 테스트를 이용해 강인성의 정도를 알아본다.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1998.06b
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• pp.219-226
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• 1998

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.571-579
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• 2021

This study aims to identify the relationship between ADHD trait and game addiction among high school students, and to examine the double mediating model of hardiness and emotional use of music on that relationship. Participants were 254 male and female high school students. World Health Organization ADHD Self-Report Scale, Short Form of Hardiness Questionnaire, Use of Music Inventory, and Internet Gaming Use-Elicited Symptom Screen were used for this study. PROCESS Macro 3.5 Model 6 was used to analyse a double mediating effect. Results revealed that ADHD trait was negatively correlated with hardiness of high school students, and positively correlated with emotional use of music and game addiction. And, hardiness of high school students was positively correlated with emotional use of music and negatively correlated with game addiction, whereas emotional use of music was negatively correlated with game addiction. It was found that hardiness and emotional use of music were sequentially mediating ADHD trait and game addiction among high school students. These findings suggest that hardiness and emotional use of music play some special roles in the path in which adolescents' ADHD trait affects game addiction.