• Journal of the Korean Society of Systems Engineering
• /
• v.20 no.spc1
• /
• pp.56-64
• /
• 2024

This study aims to compare and evaluate the usability of domestic and overseas XR devices. With the recent release of 'Apple Vision Pro', interest in the XR field is increasing rapidly. XR devices are being used in various fields such as defense, medical care, education, and entertainment, but the evaluation system for evaluating usability is still insufficient. Therefore, this study aims to derive improvements in domestic equipment through comparative evaluation of usability for two HMD-type devices and one glasses-type device that are released. In order to conduct the study, 20 participants in their 20s to 30s who were interested in XR devices and had no visual sensory organ-related disabilities were evaluated by wearing VR equipment. As a quantitative evaluation, electromyography through an EMG sensor and the device and body temperature of the device through a thermal imaging camera were measured. As a qualitative evaluation, the safety of wearing, ease of wearing, comfort of wearing, and satisfaction of wearing were evaluated. As a result of comparing the usability of the devices based on the results, it was confirmed that domestic HMD-type device needs improvement in the strap part.

• Journal of Korean society of Dental Hygiene
• /
• v.14 no.5
• /
• pp.673-680
• /
• 2014

Objectives : The purpose of this study is to investigate the awareness and performance towards the dental radiation protection behaviors in dental institutions in Busan and Gyeongnam. Methods : Two hundred and one dental medical institutions in Busan and Gyeongnam participated in the survey from March 10 to April 4, 2014. The data were analyzed using SPSS 19.0 for ${\chi}^2$ test, t-test, ANOVA, and multiple regression analysis. Results : There were significant differences in the awareness and performance towards the radiation protection behaviors according to age, monthly income, and type of hospital(p<0.05). Protective equipment influenced on the awareness and performance of dental staff and patients(p<0.001). The important variables on dental radiation protection included protection facility and education of protective equipment. It is found the variable to affect the performance of dental radiation protection was protection facility, wearing of protective device staff and patients, education on RSM. Conclusions : These results can provide the basic data for the effective dental radiation safety management and improvement for the dental institutions.

• Journal of the Korea Convergence Society
• /
• v.9 no.5
• /
• pp.43-52
• /
• 2018

The purpose of this study is to conduct a survey on awareness of the fourth industrial revolution being much debated recently and suggest the educational program for adult learner in order to create a new demand of university according to the social change. Based on earlier researches, the survey was conducted on employees working in the health and medical industry with questionnaire including the relevant educational field, areas of turnover and educational needs from July 1 to July 31, 2017. As a result, the bio-medical device, senior-friendly industry, environment and safety, clinical counselor and food service industry(coffee industry) were identified as necessary education areas. To enhance the validity of research results, in-depth interviews of relevant experts in each field were conducted from August 19 to September 22, 2017, and presented necessary education programs driven by the advent of the fourth industrial revolution and changes in each areas.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.21 no.7
• /
• pp.1379-1385
• /
• 2017

Virtual training is a kind of training that proceeds as if it were a real situation. In recent years, there has been a growing demand for experiencing a situation in which a virtual reality technology has not been experienced directly in the real world due to the rapid development of the technology. Especially, safety education is very necessary in Korea where safety accidents are caused by many disasters. Therefore, simulation of disaster response training using virtual reality is more urgent than ever. Although the automatic defibrillator is the medical device that is most needed to rescue patients with cardiac arrest, few people know how to use it. Therefore, there are very few cases where the use of automatic defibrillators has saved the patient's life in Korea. The proposed Automated External Defibrillator virtual training system enables immersive and experiential training in real situations and effective training at low cost.

• Quality Improvement in Health Care
• /
• v.15 no.2
• /
• pp.107-120
• /
• 2009

Background : To estimate fall incidence rate and associated factors in inpatients from a general hospital. Method : The data were collected from 104 fall incident reports developed by the patient safety committee in a general hospital in Seoul from 01 January 2007 to 31 December 2008. Information included general characteristics of patients, factors related to fall, types, places, circumstances and outcomes of fall. Result : The incidence rate of fall, which was 4.4 per 1,000 total discharged patients and 0.5 per 1,000 patient-days, was much lower than that of several hospitals in the United States. The difference may reflect the different incidence reporting system of each hospital. Fall-prone patients were, in general, $$\geq_-$$65 years of age, had an alert mental status, were ambulatory with some assistance, and were dependent on and ambulatory device. High incidence of falls was associated with patients with circulatory disease. The majority of fall events usually occurred in bed or at the bedside in the patient's room, and occurred more often during the night than during the day or evening. Risk factors of fall were use of drugs (antihypertensive or neuropsychiatric drugs) and environmental factors (e.g., overly high bed height, surrounding objects, inadequate fitness shoes and slippery floor). Physical injury occurred in 43.3% of fall events, which typically required diagnosis of injury and treatment such as suturing. Risk factors for repeated falls were use of a neuropsychiatric drug (odds ratio=13.9) and gait disturbance (odds ratio=91.2). Risk factors for fall-related injury were alert mental status (odds ratio=3.3 times more likely to fall than those who were drowsy or in a stupor) and general weakness(odds ratio=3.3 times more likely to fall than those who were not generally weak). Conclusion : Medical and nursing staff should be aware of the fall risk factors of hospitalized patients and should intensively pursue preventative strategies. Development of fall prevention education based on these results is recommended.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.15 no.1
• /
• pp.62-71
• /
• 2009

Purpose: The present study was performed to identify the perception, attitude, and knowledge regarding the use of physical restraints among nursing personnel working at long-term care facilities. Method: 289 nurses, nurse aids and private caregivers working at 13 wards from 7 facilities participated in the survey. Perception, attitude and knowledge regarding the use of physical restraints were evaluated using the Perceptions of Restraints Use Questionnaire developed by Evans and Strumpf(1993) and Physical Restraint Questionnaire suggested by Janelli, et al(2006). Results: Wrist restraints were used the most frequently. The perception score regarding the use of physical restraints was 3.35, which is a moderate value. Study respondents considered 'safety measure' and 'safe use of a medical device' as the most important aspects when applying physical restraints to elderly. The respondents reported physical restraints were therapeutic at least to some degree but knowledge level about physical restraints of the respondents was rather low. Conclusion: Perception and attitude toward physical restraints were identified. The lack in knowledge about physical restraints needs to be addressed for more efficient use of them.

• Korean Parent-Child Health Journal
• /
• v.6 no.1
• /
• pp.31-45
• /
• 2003

This study is designed to produce basic data on the nursing intervention between infants and mothers after discharge from hospitals. This research is carried by investigating the nursing intervention during their after-delivery staying in the hospitals located in Pusan. The object of this study includes the neonatal wards of 51 hospitals. Data collection was carried from the 3rd of September, 2001 to the 4th of October in the same year. Tools for measurement using in this research is the nursing checklist designed by these researchers. The data were analyzed by using SPSS and the output was produced in frequency and percentage considering general characteristics and nursing activities. On the course of investigation, it was revealed that the average number of items checked are as follows; total beds in one hospital came up to 360.1, the beds in each newborn infant ward came up to 36.1, in each ward the numbers of incubators came up to 9.2 and intensive care unit to 1.7. In each ward 8.4 nurses and 2.9 nurse aids were working at that time. In each hospital, secure of air way, physical examination, eye care, umbilical cord care, maintenance of body temperature, identification of infant, nutritive condition, safety and danger management, infection management, mother-infantile interaction, medical assistant to doctor, medication and discharge education were comparatively well done. But, in case of emotional, social and cognitive aspect of nursing activities through interactions between newborn infants and nurses as substitutes are not reached to the adequate level. In the end, this study hereby suggests that further investigation on the device to facilitate the interaction between newborn infant and nurse as a nursing intervention of high quality.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.16 no.6
• /
• pp.441-447
• /
• 2023

Intravenous infusion therapy is a standard nursing procedure in medical institutions that provides patients with drugs, fluids, blood, and nutrients into the patient's mucus. It is mainly performed and managed by nurses. Additionally, it is an injection method that injects drugs directly into the blood vessels, and is used to achieve rapid results in emergency situations, and quick and accurate effects can be expected. Even experienced nurses through education and training often make mistakes, which can not only cause discomfort to patients but also cause various problems that threaten patient safety. Various studies are being conducted to reduce the pain caused by these mistakes. This paper acquired images of veins on the back of the hands of three subjects through an image detection device and conducted a study to derive an algorithm to provide clear vein images through image processing of the collected images. To sharpen the acquired vein images, existing algorithms Histogram Equalization, CLAHE, and Unsharp Masking were selected and combined. A histogram graph was used to compare images derived by applying individual algorithms and algorithm combinations to images. The histogram graph was checked by calculating the difference between the minimum and maximum values of distributed pixels and averaging them. The algorithm combination presented in this paper was 209.1, which was higher than the average values of individual algorithms of 138.7, 132.3, and 126.2, and it was confirmed that visibility was good even in actual images.

• Journal of radiological science and technology
• /
• v.29 no.3
• /
• pp.185-195
• /
• 2006

Purpose: This study investigated the status of radiation exposure doses since the establishment of the "Regulations on Safety Management of Diagnostic Radiation Generation Device" in January 6, 1995. Method: The level of radiation exposure in people engaged or having been engaged in radiation-related industries of inspection organizations, educational organizations, military units, hospitals, public health centers, businesses, research organizations or clinics over a 5 year period from Jan. 1, 2000 to Dec. 31, 2004 was measured. The 149,205 measurement data of 57,136 workers registered in a measurement organization were analysed in this study. Frequency analysis, a Chi-square test, Chi-square trend test, and ANOVA was used for data analysis. Results: Among 57,136, men were 40,870(71.5%). 50.3% of them were radiologic technologists, otherwise medical doctors(22.7%), nurse(2.9%) and others(24.1%). The average of depth radiation and surface radiation during the 5-year period were found to decrease each year. Both the depth radiation and surface radiation exposure were significantly higher in males, in older age groups, in radiological technologists of occupation. The departments of nuclear medicine had the highest exposure of both depth and surface radiation of the divisions of labor. There were 1.98 and 2.57 per 1,000 person-year were exposed more than 20 mSv(limit recommended by International Commission on Radiological Protection) in depth and surface radiation consequently. Conclusion: The total exposure per worker was siginifcantly decreased by year. But Careful awareness is needed for the workers who exposed over 20 mSv per year. In order to minimize exposure to radiation, each person engaged in a radiation-related industry must adhere to the individual safety management guidelines more thoroughly. In addition, systematic education and continuous guidance aimed at increasing the awareness of safety must be provided.