• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.343-354
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• 2017

This study was designed to identify the knowledge, perception, self-efficacy, and performance on radiation protection among perioperative workers in terms of radiation protection. The factors affecting the performance of radiation protection were identified, and provide basic data for the development of an effective radiation protection education program. The sample was comprised of 166 perioperative workers who agreed to participate in this descriptive study. Data analysis was performed using the t-test, analysis of variance, Pearson's correlation, and multiple regression analyses on the SPSS 23.0 Program. The average time of radiation exposure was 3-4hoursThe radiation protection education experience was 11.4%. The average score of radiation protection knowledge was $8.61{\pm}2.51$; the perception was $4.59{\pm}0.64$; and the performance was $2.99{\pm}0.90$ There was a significant difference in the degree of radiation defense knowledge and performance among the general characteristics (p <001). Knowledge of radiation protection was correlated with the perception. The performance of radiation protection was correlated with the knowledge. The knowledge and perception of radiation protection behaviors should be increased to improve radiation protection performance. Therefore, it is important to promote the performance of radiation protection behaviors by improving the perioperative workers' knowledge of radiation protection through reinforcing radiation-related education.

• Nuclear industry
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• v.25 no.10 s.272
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• pp.34-53
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• 2005

방사선 방호는 역동적이다. 위로는 방호의 개념과 틀에서부터 아래로는 사용하는 물리량과 수치 기준에 이르기까지 무엇 하나 불변인 것이 없어 보인다. 이와 같은 변화는 방사선의 작용과 생물보건학적 영향에 대한 우리 과학적 지식의 견고도도 관계되지만 방사선 방호가 본질적으로 과학의 문제만이 아니라 사회의 역동성과 연계되어 있기 때문이다. 방사선 위해도와 방호 체계에 상당한 변화가 있어 논

• Journal of radiological science and technology
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• v.40 no.1
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• pp.101-108
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• 2017

The purpose of this study was to investigate safety management awareness and behavioral investigation of radiation/radioactivity performance defenses of radiation workers' in medical institutions. Data collection consisted of 267 radiation workers working in medical institutions using structured questionnaires. As a result, it was analyzed that radiation safety management awareness and performance were high in 40s, 50s group and higher education group. The analysis according to the radiation safety management knowledge was analyzed that the "Know very well" group had higher scores on awareness and performance scores. The analysis according to the degree of safety management effort showed the high awareness scale and the performance scale in the group "Receiving various education or studying the safety management contents through book". The correlations between the sub-factors showed the highest positive correlation between perceived practician and personal perspective and perceived by patient and patient's caretaker perspective. Therefore, radiation safety management for workers, patients, and patient's caretaker should be conducted through continuous education of radiation safety management through various routes of radiation workers working at medical institutions.

• Proceedings of the KAIS Fall Conference
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• 2010.05b
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• pp.749-754
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• 2010

본 연구는 환자들의 진단용 방사선피폭 인식에 대한 관련 요인을 분석하여, 환자들의 방사선 피폭에 대한 인식의 변화를 위한 교육 자료를 만드는데 기초자료로 제공하기 위함이다. 1. 방사선에 대한 인지도에 영향을 미치는 요인으로는 방사선 유해성 인지도, 방사선 피폭방지 인지도, 학력, 방사선검사 경험, 방사선 피폭에 대한 설명을 들은 경험, 방사선 지식도로 나타났다. 2. 방사선의 유해성에 대한 인지도에 영상을 미치는 요인으로는 방사선의 인지도, 성별, 직업, 방사선 검사 경험, 방사선 검사의 종류, 방사선 피폭의 두려움 정도와 방사선 검사 후 향후 이상의 걱정으로 나타났다. 3. 방사선의 필요성에 대한 인지도에 영향을 미치는 요인으로는 방사선 유해성 인지도, 방사선 피폭방지 인지도, 성별, 직업, 가구 월 소득, 방사선 검사의 종류, 방사선 피폭에 대한 설명을 들은 경험, 방사선 지식도, 방사선 검사 후 향후 이상의 걱정으로 나타났다. 4. 방사선 피폭방지에 대한 인지도에 영향을 미치는 요인으로는 방사선 인지도, 방사선의 필요성 인지도, 성별, 나이, 직업, 가구 월 소득, 방사선 검사의 종류, 방사선 피폭에 대한 설명을 들은 경험, 방사선 지식도로 나타났다. 본 연구를 통하여 본 결과 환자들은 방사선 피폭에 대해서 너무 민감하게 반응하고 있으며 그 원인이 방사선에 대한 무지에 있음이 드러났다. 그러므로 환자들로 하여금 진단용 방사선 피폭에 대하여 올바르게 인식을 할 수 있도록 돕는 교육 프로그램의 개발이 시급하며, 방사선사들에게는 환자의 피폭선량 경감을 위한 세심한 배려가 필요하다고 하겠다. 환자들 또한 진단용 방사선에 대하여 올바로 인식하는 것이 촬영 시 정신적인 피해를 줄일 수 있으며, 방사선 피폭을 줄일 수 있을 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.1010-1011
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• 2023

코로나19 팬데믹 이후 배달 앱 사용량이 증가에 따라 배달 오토바이 수가 급증하면서 이와 관련 사고 또한 급격히 증가하는 추세를 보이고 있다. 특히 청각 장애인들은 도로에서 이러한 종류의 사고 위험에 더욱 노출되어 있으며, 이 문제를 해결하기 위해 구글 앱 인벤터를 사용하여 도로에서 오토바이 소리를 인식하는 인공지능 학습 모델을 개발하였다. 개발된 어플리케이션은 도로에서 오토바이 소리를 감지하고 사용자에게 진동과 사진으로 알림을 보냄으로써 사고를 예방에 기여할 수 있다.

• Proceedings of the Korean Society of Radiological Science
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• 1994.05a
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• pp.8-8
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• 1994

• Proceedings of the Korean Society of Radiological Science
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• 1996.06a
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• pp.15-15
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• 1996

• The korean journal of orthodontics
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• v.37 no.2 s.121
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• pp.114-124
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• 2007

Objective: The purpose of this study was to examine how the mesio-distal angulation and the length of each tooth changes on panoramic radiograph at different bucco-lingual inclinations. Methods: After constructing an acrylic model based on the mean arch of 30 adults with normal occlusion, the wire was placed in the center of the teeth on the acrylic model. First, the wire was implanted in normal angulation and inclination and a panoramic radiograph taken. After changing the inclination from $I-5^{\circ}\;to\;I+15^{\circ}\;by\;5^{\circ}$, a panoramic radiograph was taken again and the mesio-distal angle and wire length on the panoramic radiograph were assessed. Results: When the wire was implanted at the normal angulation and inclination, the length measured in the panoramic radiograph was magnified $111{\sim}117%$ from the original length in the anterior region and $121{\sim}125%$ in the posterior region. Only the central and lateral incisors showed significant length differences when the inclination was changed from $l-15^{\circ}\;to\;I+15^{\circ}$ at fixed angulation. When the inclination was changed from $l-15^{\circ}\;to\;I+15^{\circ}$, the angulation of most teeth on panoramic radiograph appeared to be more disto-angulated than in reality, and the lateral incisor and canine showed the largest difference. Only $l-15^{\circ}\;to\;I+15^{\circ}$ groups of premolars and $I+15^{\circ}$ group of molars showed more mesio-angulation than in reality. As the labio(bucco)lingual inclination of all teeth were decreased, tooth angulation in the panoramic radiograph appeared to be more disto-angulated. Conclusion: The labio-liugual inclination of teeth should be considered because it affects panoramic image of teeth, such as length of incisors and angulation of other teeth.

• Radiation Oncology Journal
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• v.19 no.2
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• pp.199-204
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• 2001

Purpoe : To find the optimal values of total arc degree to protect the normal brain tissue from high dose radiation in stereotactic radiotherapy planning. Methods and Materials : With Xknife-3 planning system & 4 MV linear accelerator, the authors planned under various values of parameters. One isocenter, 12, 20, 30, 40, 50, and 60 mm of collimator diameters, $100^{\circ},\;200^{\circ},\;300^{\circ},\;400^{\circ}C,\;500^{\circ},\;600^{\circ}$ or total arc degrees, and $30^{\circ}\;or\;45^{\circ}$ or arc intervals were used. After the completion of planning, the plans were compared each other using $V_{50}$ (the volume of normal brain that is delivered high dose radiation) and integral biologically effective dose. Results : At $30^{\circ}$ of arc interval, the values of $V_{50}$ had the decreased pattern with the increase of total arc degree in any collimator diameter. At 45 arc interval, up to $400^{\circ}$ of total arc degree, the values of $ V_{50}$ decreased with the increase of total arc degree, but at $500^{\circ}\;and\;600^{\circ}$ of total arc degrees, the values increased. At $30^{\circ}$ of arc interval, integral biologically effective dose showed the decreased pattern with the increase of total arc degree in any collimator diameter. At $45^{\circ}$ arc interval with less than 40 mm collimator diameter, the integral biologically effective dose decreased with the increase of total arc degree, but with n and n mm or collimator diameters, up to $400^{\circ}$ or total arc degree, integral biologically effective dose decreased with the increase of total arc degree, but at $500^{\circ}\;and\;600^{\circ}$ of total arc degrees, the values increased. Conclusion : In the stereotactic radiotherapy planning for brain lesions, planning with $400^{\circ}$ of total arc degree is optimal. Especially, when the larger collimator more than 50 mm diameter should be used, the uses of $500^{\circ}\;and\;600^{\circ}$ of total arc degrees make the increase of$V_{50}$ and integral biologically effective dose. Therefore stereotactic radiotherapy planning using $400^{\circ}$ of total arc degree can increase the therapeutic ratio and produce the effective outcome in the management of personal and mechanical sources in radiotherapy department.

• Journal of radiological science and technology
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• v.40 no.2
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• pp.323-329
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• 2017

The purpose of study was to analysis on the effects of radiation-counseling convergence education on radiation awareness. The survey objects were students of radiation-counseling convergence education from 12th May to 22th June in 2016. The questionnaires were education satisfactions and radiation awareness (risk, benefit, control) by Likert-type 5 scales. The analysis results revealed that education satisfactions of men students showed a significant higher female students and correlation coefficient of education satisfactions were the best high in the benefit and control of radiation. Finally radiation-counseling convergence education had a significant effect on radiation benefit. This convergence education influenced positive recognition on radiation benefit and it was indicated that radiation-counselors could treat clients on the basis of radiation benefit.