• 대한간호학회지
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• 제26권4호
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• pp.820-832
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• 1996

The average smoking rate for Adults' in our country is 40.6% : It is 74.2% for men and 5.0% for women. Particularly, the smoking rate for men is reported higher than that of men in U.S.A. or Japan. Since the first report on the association between smoking and cancer appeared, 370 thousand smokers have succeeded in smoking cessation and over 90% of them have responded that they depended on a self-help smoking cessation approach. Despite this positive evidence about self- help approaches for smoking cessation, most studies on smoking cessation have focused on evaluation of formal treatment programs that are provided by clinics. Reports on the smoking cessation process used by smokers in our country could not be found. However, it is believed that the situation in our country would be quite similar to that in U.S.A. as far as approaches to successful smoking cessation are concerned. This study was conducted to classify the smoking stage to which they smoker belong and which changing mechanisms could be included at each changing stage (precontemplation stage, comtemplation stage, action stage) with a sample of 155 college students between 20 and 29 years old. And it also identified which variables related both to smoking pattern and to health, which ones were significantly discriminating in the changing stages. From the results of the data analysis it was found that Self-Determination is the most influential variable as one of the changning mechanisms which can discriminate three changing stages. And as the next significant mechanisms were Reinforcement, Dramatic Relief, Cognitive Restructuring, Helping Relationship, and Information Management in that order. Among variables related to the smoking pattern, years of regular smoking, whether smoking is continued or not even when they are sick, the number of attempts to stop smoking, number of cigarettes smoked per day, and whether they have smoked over 100 cigarettes up to now, but not the time of the first cigarette after waking-up, were the significant factors to descriminate changing stages. It was confirmed that among variables related to health that, perceived control for health, confidence of health maintence ability, and self confidence in smoking cessation, were significant variables in determinating changing stages. The most influential variables among them was self-confidence in smoking cessation. Conclusively, it was shown that smoking cessation is the process of attempting to change smoking habits through the various changing processes. Also it can be shown that a few factors smoking habit, self-confidence of smoking cessation, and belief in self control of his /her health, were influential in discriminating the changing stages of the smoking habit.

• 컴퓨터교육학회논문지
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• 제6권4호
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• pp.37-47
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• 2003

본 논문에서는 영상의 소유권 보호를 위해 DCT계수들의 자기유사성(self-similarity)을 이용한 새로운 디지털 워터마킹 기법을 제시한다. 신경회로망 중 SOM(Self-Organizing Map)을 이용하여 유사한 계수를 분류하고 클러스터들 중 선택된 클러스터에 워터마크를 삽입한다. 일반적으로 영상의 고주파 영역에 삽입된 워터마크는 JPEG압축 같은 압축처리에 의해 쉽게 제거된다. 그리고 저주파 영역에 삽입된 워터마크는 영상의 화질을 훼손시킨다. 따라서 중간주파수 영역에서 많은 계수들을 가지는 클러스터에 워터마크를 삽입한다. 이 알고리즘은 선택된 클러스터 내의 계수들의 개수에 따라 워터마크를 영상에 삽입함으로써 영상의 훼손을 줄여준다. 워터마크가 삽입된 영상으로부터 워터마크를 검출하기위해 원영상없이 선택된 클러스터를 이용한다. 실험을 통해 새로 제안된 알고리즘은 영상의 좋은 화질과 JPEG 압축, 필터링과 같은 영상처리, 축소와 학대, 잘라내기 같은 기하학적 변환, 자음과 같은 공격에 아주 강인하다.

• 비교문화연구
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• 제33권
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• pp.33-52
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• 2013

Haizi, who ended his life with suicide on the railroad at the age of 25, is a poet who implemented his unique poetic world alone without belonging to any of the existing Chinese poetry schools in the 1980s. The process that Haizi reveals self-inside through a poetic work is rather to hide self-inside paradoxically, too. Accordingly, even a work of figuring out the real intention, which is hidden in poetic dictions that he selected, will be meaningful. In this sense, this study tried to inquire into the poetic imagination and self-image that were revealed in poetry focusing on "Spring, Haizi of 10 People", which is a work of having his name as topic, with having been written at the time of suicide, among Haizi's many poetic works. In addition, it figured out Haizi's private conscious world through analyzing the poem titled "Facing the sea with spring blossoms", which was created ahead of death same as "Spring, Haizi of 10 People". Thus, the aim was to look back on significance of his death and to broaden the width of understanding about Haizi's poetry. As for Haizi, the death can be regarded as the completion of 'performance,' which is a kind of Haizi's own final art form. Hence, Haizi's suicide needs to be seen from the perspective dubbed the continuity of creation through this performance, not the discontinuance of creation caused by 'intended death' that the poet himself selected. In the wake of pursuing the poetic world of a gifted poet Haizi, who died early, that this study examined, there will be any poet of Korea who is recalled naturally. One poet will be first recalled Yi Sang, who is a poet and a novelist of having been broadly known. Another poet is overlapped Gi Hyeong-do, who had been active as a poet and a journalist of having been dead after living in the similar period to Haizi. A comparative analysis among works by these Korean and Chinese poets has similarity beyond the temporal space. A research on this is thought to have value of being considered a little more deeply and generally hereafter. Still, this study mentioned only possibility of a comparative research on this.

• 농촌지도와개발
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• 제19권1호
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• pp.95-127
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• 2012

The objective of this study was to examine multicultural family children's adjustment process to kindergarten and differences in their adjustment among time points. For these purpose, we conducted interviews and a questionnaire survey with teachers in charge of 3-5-year-old young children from multicultural families at public and private kindergartens in Gwangju, Jeollanamdo and Daejeon. According to the results of this study, multicultural family children adjusted themselves to kindergarten through four weeks' daily life in the kindergarten. In daily work adjustment, they showed some difficulty in Week 2 but their adjustment improved rapidly in Week 3 and Week 4. Self adjustment and peer adjustment also improved notably in Week 3 and Week 4. In pro-social adjustment, the children showed difficulty in Week 2, improvement in Week 3, and again difficulty in Week 4. These results suggest that, by responding to the teacher's sensitivity and intimacy, young children in multicultural families have a pattern of adjustment similar to that of young children in Korea families.

• 인터넷정보학회논문지
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• 제5권4호
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• pp.63-76
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• 2004

통신망을 효율적으로 설계하고 운영하기 위하여 통신망에 대한 구체적인 시뮬레이션이 필요하며 이에 관한 연구가 현재 활발히 이루어지고_ 있다. 본 논문에서는 시뮬레이션 시 요구되는 트래픽 모델을 수립하기 위하여 실제 수집된 트래픽 자료를 이용하여 HTTP 요구 수준에서 웹 트래픽을 모델링 한다. 그리고 또한 현재 논란이 되고 있는 인터넷 트래픽의 통계적인 특성이 포아송 과정을 따르는지 아니면 자기유사한(self-similar) 특성을 보이는지를 웹 트래픽의 특성 분석을 통해 알아보았다. 본 연구의 결과로 트래픽은 하나의 함수로 모델링 할 수 없었으며 특정 구간에서는 하나의 함수로, 그리고 다른 구간에서는 다른 함수로 모델링 될 수 있다는 사실을 알 수 있었으며, 그 모델링이 다르게 되는 영역은 HTTP서버의 특성에 따라서 달라진다는 것을 알 수 있었다. 이러한 결과를 본 연구와 관련된 통신망 시뮬레이터(NetDAS)의 웹 트래픽 생성기의 설계 및 구현에 이용할 수 있도록 하였다.

• 보건교육건강증진학회지
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• 제27권4호
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• pp.165-175
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• 2010

Objectives: The purpose of this study is to evaluate the program theory of a lifestyle intervention program for the prevention and treatment of metabolic syndrome. Methods: The program evaluated is a tailored intervention for multiple health behavior associated with metabolic syndrome which is informed by theoretical constructs from the Intervention Mapping and Transtheoretical model. The program components include one-to-one health counseling, a self-management handbook, and a health diary. To evaluate program impact theory we examined the logic of program goals and objectives, intervention methods and strategies, and the theoretical constructs of program materials through document review and matrix building. Results: This evaluation has found that the intervention program applied social cognitive theory constructs to design intervention methods and strategies in addition to the Transtheoretical model: self-monitoring for goal setting and monitoring skill, outcome expectation for the benefits of health behavior change, and interaction with environment for observational learning through modeling. While the intervention addresses multiple determinants and behaviors, it is limited to an individual level and lacks social and environmental approaches. Following the Transtheoretical framework, the contents of the intervention materials were developed utilizing consciousness raising as a main strategy for earlier stages of change, and counterconditioning and stimulus control for later stages of change. Conclusion: Program theory evaluation can be a process of enhancing program validity. It would also be necessary for providing basis for efficient program implementation. When comparisons of program theory between similar programs are possible, program theory and validity will be strengthened when comparisons of program theories between similar programs are possible.

• 한국안전학회지
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• 제30권4호
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• pp.1-7
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• 2015

Self-piercing riveting (SPR) process is gaining popularity due to its many advantages. The SPR does not require a pre-drilled hole and has capability to join a wide range of similar or dissimilar materials and combinations of materials. This study investigated the fatigue strength of self-piercing rivet joint with aluminum alloy (Al-5052) and steel (SPCC) sheets. Static and fatigue tests on tensile-shear specimens were conducted. From the static strength aspect, the optimal punching force for the specimen with upper SPCC (U.S) sheet and lower aluminum alloy(L.A) sheets was 34 kN. During static test the specimens fractured in pull-out fracture mode due to influence of plastic deformation of joining area. There was a relationship between applied load amplitude $P_{amp}$ and number of cycles N ; $P_{amp}=19588N_f^{-0.211}$ and $P_{amp}=4885N_f^{-0.083}$ for U.S-L.A and U.A-L.S specimens, respectively. U.A-L.S fatigue specimens failed due to fretting crack initiation around the rivet neck between upper and lower sheets.

• 한국안전학회지
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• 제35권2호
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• pp.76-83
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• 2020

This study examined the effects of perceptual differences of safety leadership between managers and workers on workers' safety attitudes and behavior in two construction sites. In addition, the mediating role of safety attitude between safety leadership and safety behavior across discrepancy level of safety leadership. This study was conducted on two first-tier construction companies within the 100th place in 2019. Two companies were similar in size(100 - 150 billion won) and process from the basement frame finishing stage to start of the ground structure of apartment. In A Site, 40 managers and 73 workers, 42 managers and 77 workers in B site participated the survey on managers' safety leadership, and workers' safety attitude and behavior. The results showed that there was no significant difference between the safety leadership scores assessed by the manager and workers at site B. However, the safety leadership scores assessed by the managers were significantly higher than that by the workers at site A. The workers' safety attitudes and behaviors at site B were higher than those of workers at site A. Moreover, Site B was significantly higher in the effects of safety leadership on safety behavior than Site A. At site B, safety leadership had a significant influence on safety behavior even after controlling the safety attitude of workers. At site A, safety leadership had no significant effect on safety behavior after controlling safety attitude. These findings suggest that there is managers' self-serving bias on safety leadership in site A and that this bias of leadership can negatively affect workers' safety attitude and behaviors. In addition, it can be seen that if the self-serving bias on safety leadership occurs, the manager's safety leadership has less influence on workers' safety behavior.

• IEIE Transactions on Smart Processing and Computing
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• 제4권1호
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• pp.10-15
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• 2015

This paper proposes the parallel implementation of a self-similarity based image SR (super-resolution) algorithm using OpenCL. The SR algorithm requires tremendous computations to search for a similar patch. This becomes a bottleneck for the real-time conversion from a FHD image to UHD. Therefore, it is imperative to accelerate the processing speed of SR algorithms. For parallelization, the SR process is divided into several kernels, and memory optimization is performed. In addition, two GPUs are used for further acceleration. The experimental results shows that a GPGPU implementation can speed up over 140 times compared to a single-core CPU. Furthermore, it was confirmed experimentally that utilizing two GPUs can speed up the execution time proportionally, up to 277 times.

• 한국통신학회논문지
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• 제16권5호
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• pp.403-412
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• 1991

본 논문에서는 숫자, 영문자및 임의의 도형을 인식할 수 있는 자율조직 신경회로망의 한 형태를 제안하였다. 제안된 알고리즘은 미리 정해진 규칙을 부여하지 않아도 입력화상에 좋재하는 특징점의 분포 형태에 따라 시스템 내부에서 자율적으로 유사패턴을 조직, 분류하게 된다. 따라서 학습의 규칙을 만들기 곤란한 임의도형의 인식을 위해 적절하게 이용될 수 있으며, 기억용량의 한계까지는 안정된 인식동작을 한다. 또한 본 알고리즘을 50개 회상패턴에 적용하여 노이즈의 증가에 대한 인식능력을 측정한 결과, 최대 44% 의 노이즈 (SNR 2dB)로 인해 변형된 형태에서도 인식이 가능함으로서 양호한 내잡음특성이 입증되었다.