• 한국콘텐츠학회논문지
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• 제6권8호
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• pp.57-67
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• 2006

애니메이션은 제작에 있어 수용자의 지각에 반응하는 의도된 프레임 수(명멸현상)를 이용함으로써 움직임의 효과를 극대화 할 수 있다. 그러나 특정의 효과(경찰차의 경광등이나, 신호등의 점멸을 확대한 장면에서 빠른 점멸을 의도적으로 계획한 프레임 수)나 지나친 시각적 자극을 주기 위하여 배색에 있어서 채도의 대비를 높이는 경우는 매우 위험한 상황을 초래할 수도 있다. 일본의 '포켓몬스터' 방영에서 일어난 피해로 문제의 심각성이 대두된 명멸현상의 위험성은 의학용어로 '빛과민성 발작증세'로 정의되고 있다. 애니메이션의 제작에 있어서 컬러의 품질관리도 중요하지만 색채가 미치는 심리적인 요인을 분석한 컬러설정이라든가, 영상효과에 있어서 섬광과 패턴의 연속적인 점멸이 미치는 위험성을 제작단계에서 체크할 필요가 있음을 시사하고 있다. 연구자는 일본에서 사용 중인 영상 애니메이션 등의 제작기법에 관한 가이드라인을 포함, 국외의 관련규정들을 종합 검토하고 피험자를 대상으로 한 실험과 비교하여 명멸현상의 위험성에 대한 해결방안을 마련하였다.

• 한국재난정보학회 논문집
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• 제11권1호
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• pp.23-34
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• 2015

본 연구에서는 충청북도 내 각 지자체를 대상으로 지역별 대설특성을 통한 잠재적 위험요인을 분석하였다. 분석결과, 35년 평균적설량으로 인한 잠재적 위험도는 제천시와 보은군이 가장 높았으며 35년 최대적설량을 통한 잠재적 위험요인에서는 다른 결과가 도출되는 것을 알 수 있었다. 잠재적 위험요인에 대한 지역의 빈도수를 살펴보면 가장 높은 지역은 보은군, 제천시, 괴산군, 영동군, 청주시 순으로 도출되었다. 본 연구는 일반적인 대설특성 뿐만 아니라 잠재적인 위험요인들을 도출하고 그에 대한 위험도를 제시하였다는 점에서 그 의의를 가진다. 본 연구의 결과는 향후 충청북도 각 지자체들의 제설대응체계 및 방안 마련에 기초자료로 활용할 수 있을 것이다.

• 근관절건강학회지
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• 제8권2호
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• pp.230-249
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• 2001

This study was conducted to investigate the affecting factors on the adaptation to uncertainty in patients having rheumatoid arthritis. Subjects of the study constituted 222 patients who visited outpatient of rheumatic center in Seoul. Self report questionnaires were used to measure the variables affecting the adaptation to uncertainty. The variables affecting the adaptation to uncertainty were uncertainty, mastery, appraisal of danger, appraisal of opportunity, emotion focused coping, problem focused coping, pain, depression and activity of daily life(ADL). Reliability coefficients of these instruments were found Cronbach's $Alpha\;=\;.70{\sim}.94$. In data analysis, SPSSWIN 10.0 program was utilized for descriptive statistics, Pearson's correlation, and multiple regression analysis. The results were as follows. 1) The range of total pain scores was from 0 to 147 and the mean score of the pain in rheumatoid arthritis patients was 72.64. 2) The range of total depression scores was from 20 to 72 and the mean score of the depression in rheumatoid arthritis patients was 39.86. 3) The range of total ADL scores was from 22 to 80 and the mean score of the ADL in rheumatoid arthritis patients was 72.56. 4) Among the independent variables, significant factors to explain the adaptation to pain in patients were danger appraisal of uncertainty(p<.05) and emotion focused coping(p<.05). 5) Among the independent variables, significant factors to explain the adaptation to depression in patients were danger appraisal of uncertainty(p<.001), opportunity appraisal of uncertainty(p<.001) and mastery(p<.005). 6) Among the independent variables, significant factors to explain the adaptation to ADL in patients were mastery(p<.001) and danger appraisal of uncertainty(p<.05).

• 동서간호학연구지
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• 제5권1호
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• pp.7-18
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• 2000

This study was experienced study of one group pretest-posttest design to confirm the effects of Bu-Hang therapy on sore and the study of subjects were high-danger group of developing sore that were instituted in Chung-Book A area. The data collection was conducted 11 subjects of high-danger group on developing sore as participants agreed in study after assessing sore danger-degree of 30 subjects with institute administrator. The duration of study was carried out between March, 1999 and September, 2000. The instrumental tool of study was assessing tool of modified sore danger-degree that was based on Braden Scale(1985) by developing of Bergstorm. The subjects of study were applied on sore site or easily developing site by Geon-Hang technique, one time for one day. The assess of sore duration treatment period were measured area of sore, assessed state of skin by Bergstrom, Braden, Lanquzza & Holman(1987). The analysis of collected data were showed by frequency, percentage on demographic characteristics. And effects of Bu-Hang therapy on sore were confirmed by contrast comparison of signal-test or case studies. The results of study were described below. 1. Bu-Hang therapy effected to inhibit of developing sore and decrease of sign and symptom on sore in 11 subjects, all(P=.010). 2. Bu-Hang therapy decrease of sign and symptom on sore in 6 subjects of case studies, all(P=.031). Conclusively, Bu-Hang therapy will facilitate for nursing intervention on sore. But this study was difficult to confirm effects of Bu-Hang therapy pretest-posttest design. Therefore, Bu-Hang therapy is high enable to decrease for sore but, yet is needed to monitor affectively for nursing intervention.

• Imaging Science in Dentistry
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• 제37권2호
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• pp.103-110
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• 2007

Purpose: To examine the danger zone of mesial root of mandibular first molar of patient without extraction using CBCT (cone-beam computed tomography) to avoid the risk of root perforation. Materials and Methods: 20 mandibular first molars without caries and restorations were collected, CT images were obtained by CBCT ($PSR9000N^{TM}$, Asahi Roentgen Co., Japan), reformed and analyzed by V-work 5.0 (CyberMed Inc., Korea), Distance between canal orifice and furcation was measured. In cross sectional images at 3, 4 and 5 mm below the canal orifice, distal wall thickness of mesiobuccal canal (MB-D), distal wall thickness of mesiolingual canal (ML-D), distal wall thickness of central part (C-D), mesial wall thickness of mesiobuccal canal (MB-M) and mesial wall thickness of mesiolingual canal (ML-M) were measured, Results: The mean distance between the canal orifice and the furcation of the roots is 2.40 mm, Distal wall is found to be thinner than mesial wall. Mean dentinal wall thickness of distal wall is about 1 mm, The wall thickness is thinner as the distance from the canal orifice is farther. But significant differences are not noted between 4 mm and 5 mm in MB-D and C-D, MB-D is thinner than ML-D although the differences is not significant. Conclusion: The present study confirmed the anatomical weakness of distal surface of the coronal part of the mesial roots of mandibular first molar by CBCT and provided an anatomical guide line of wall thickness during endodontic treatment.

• 한국컴퓨터정보학회논문지
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• 제12권1호
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• pp.189-197
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• 2007

고속도로 상을 운전하는 운전자가 사고, 낙물, 또는 결빙 등 도로위험상황을 발견한 즉시 후속차량에게 이 정보를 전달함으로써 사고를 미연에 방지하는 안전시스템을 개발하였다. 이를 위해서 각 차량은 GPS와 송수신 단말기로 구성된 OBU를 장착하고 지난 일정한 거리의 도로 궤적을 항상 갱신하고 저장하여 사고 위험사황을 목격 시 버튼을 눌러 사고위험유형과 궤적정보가 송신한다. 정보를 받은 모든 차량은 자차의 위치나 방향이 수신된 궤적정보 상에 있는지를 판단하고 일정한 거리내의 후속차량만이 이에 반응하여 경보메시지를 발생시키게 된다. 447Mhz의 주파수의 트랜스시버를 갖는 OBU를 장착한 두 대의 실험차량을 약 120m의 간격을 두고 $30km/h{\sim}50km/h$의 속도로 도로주행 실험을 한 결과 문제없이 통신이 이루어짐을 확인하였다. 따라서 본 시스템은 운전자가 고속도로상의 위험 상황을 사전에 인식하고 대처할 수 있게 하므로 안전 주행의 도구로 사용되어 질 수 있을 것이다.

• Safety and Health at Work
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• 제8권1호
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• pp.59-66
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• 2017

Background: Despite considerable efforts made in recent years, the industrial accident rate and the fatality rate in the Republic of Korea are much higher than those in most developed countries in Europe and North America. Industrial safety policies and safety regulations are also known to be ineffective and inefficient in some cases. Methods: This study focuses on the quantitative evaluation of the effectiveness of direct safety regulations such as safety certification, self-declaration of conformity, and safety inspection of industrial machines in the Republic of Korea. Implications on safety policies to restructure the industrial safety system associated with industrial machines are also explored. Results: Analysis of causes in industrial accidents associated with industrial machines confirms that technical causes need to be resolved to reduce both the frequency and the severity of such industrial accidents. Statistical analysis also confirms that the indirect effects of safety device regulation on users are limited for a variety of reasons. Safety device regulation needs to be shifted to complement safety certification and self-declaration of conformity for more balanced direct regulations on manufacturers and users. An example of cost-benefit analysis on conveyor justifies such a transition. Conclusion: Industrial safety policies and regulations associated with industrial machines must be directed towards eliminating the sources of danger at the stage of danger creation, thereby securing the safe industrial machines. Safety inspection further secures the safety of workers at the stage of danger use. The overall balance between such safety regulations is achieved by proper distribution of industrial machines subject to such regulations and the intensity of each regulation. Rearrangement of industrial machines subject to safety certification and self-declaration of conformity to include more movable industrial machines and other industrial machines with a high level of danger is also suggested.

• 대한조선학회지
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• 제11권1호
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• pp.27-34
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• 1974

This study is aimed at a validation of the vigilance simulation model which was proposed earlier (2). The model estimates a perceived danger value, an alertness level and the probability of detection at a given elapsed time of vigilance. Twenty-nine male and seven female subjects were given a simple task. They were asked to detect a number(four numbers out of six digits in the telephone directory which have the probability of occurrence in the range of 0.0010-0.0018) in six different experimental conditions, for periods of two to three hours. Analysis of the experiments showed that although the mean detection rate varied slightly in two hours, the within-subject variance and the number of cyclic performance fluctuations increased significantly. A primal factor that affects the performance seems to be the frequency of target occurrence. By curve fitting, the relation between the probability of detection and the percentages of danger event occurrence was derived; $y=0.50(1-{\varepsilon}^{-50x^2})+0.39$. Assuming the equation represents the normal detection rate(100% performance), the Relative Vigilance Performance Rating was calculated. This rating method could be a useful criterion in selecting and training of the vigilance personnel. The results show that the simulation model is a good estimator of human a performance when the probability of danger occurrence is greater than 0.0015; it gives a good reference for improving the vigilance system. Suggestions are made that (1) the validity of proposed functional equations over the extended range of danger probability be studied, (2) an analysis of the cyclic fluctuations of the alertness level be accomplished, and (3) the cost functions of detection reliability be included in any future model.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2006년도 추계학술발표대회 논문집
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• pp.310-315
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• 2006

Recently, an apartment has been changed to be high and diverse. In addition, it has been popularized rapidly. The more number of residents are increased, the more danger of the fire is also increased. If residents are in the upper floor when a fire breaks out, they have much longer evacuation path than the usual. What is more, their condition becomes more unstable. so, riskiness of evacuation is very serious. We should set up environment of evacuation safely. Even though some evacuation system is set up , the dangerous situation is more likely to be occurred. Because it depend on the person. If the person in the building don't recognize that system, it's valueless. Therefore it's very important to understand residents' conciousness level which is related to flee for safety in the fire. In this study, we examine into residents' aware safety level by their residential type. And according to this data, let residents know how they escape from danger . As a result, they can get out of danger when a fire breaks out.

• International journal of advanced smart convergence
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• 제8권4호
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• pp.214-220
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• 2019

Hearing impaired people are apt to be in danger because they can't detect danger with sound. Hearing impaired people have less risk-detection ability than non-disabled people because of lack of hearing. There are many devices to help the hearing impaired, such as hearing aids. A hearing aids can be helpful, but it may not be available depending on the degree or type of hearing loss for example, to the hearing-impaired people with little remaining hearing of high frequencies, ordinary hearing aids are not very useful for understanding the high frequency consonants and it requires a high cost, from thousands to tens of thousands of dollars. Also, it is difficult for the underprivileged, such as the low-income bracket and the elderly, to use them because they are difficult to manage. Therefore, this paper describes the development of low-cost wearable device to assistant a hearing-impaired people using Arduino. Also, it accepts values from switches or sensors and can control external electronic devices such as LEDs and motors to create objects that can interact with the environment. In this is paper, through sound sensors, the ambient sound was taken as an analogue value and transmitted to the aduino board, and the vibration motor was operated when the noise was generated, so that the user could be aware of the occurrence of danger.