• Journal of Korean Clinical Nursing Research
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• v.20 no.3
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• pp.290-302
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• 2014

Purpose: The purpose of this study was to identify sexual activities of males with spinal cord injury (SCI) and influential factors of sexual adjustment. Methods: A correlational survey was conducted among a total of 135 males with SCI. Results: After SCI, patients maintained low levels of sexual adjustment, and a main obstacle of sexual rehabilitation was decreased erectile function (65.2%). Sexual desires recovered in 84.4%, with 62.4% patients reporting more than once intercourse experiences. The erectile function of participants with normal, decreased or no erectile function were 13.0%, 62.6% and 24.4%, respectively. 8.1% of the participants reported no problem with ejaculation. Patients with incomplete SCI had better preserved erectile function than those with complete SCI (t=-4.627, p<.001). Patients with upper motor neuron injury had better preserved erectile function than those with lower motor neuron injury (t=2.446, p =.016). Sexual adjustment was relevant to age, job, degree of injury, post-injury period, sexual desire, intercourse experience, erection therapy, erectile function, and sexual health. Sexual adjustment was a factor of sexual health with a power of 24.2%. Conclusion: The main obstacle of sexual rehabilitation for males with SCI decreased erectile function. Erection and ejaculation are dependent on the severity and level of SCI. The major influence on sexual adjustment is sexual health.

• Journal of the Korean Dietetic Association
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• v.9 no.3
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• pp.209-218
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• 2003

The purpose of this study was to identify obstacles by surveying dieticians' perception in implementing Generic HACCP Plan for school foodservice operations from 2001. The survey was conducted in five areas; Seoul, Kyoung-gi Province, In-cheon, Kwang-ju and Dae-jeon. Five hundred and sixty questionnaire were sent by the e-mail address and the local school dietician's Community Board on the internet, 263 were returned. Two hundred and forty were returned by E-mail, return rate was 42.86%. Twenty three were received by the local school dietician's Community Board on the internet. The obstacles were grouped of six fields and indicated thirteen factors in implementation of the Generic HACCP Plan for school foodservice. The six fields were 'status of cooperation within HACCP team', 'cooperation with the external people' such as teachers, food suppliers, student's parents, 'understanding HACCP system of the dieticians', 'hygiene facilities', 'training & educating employees', and 'difficulty of monitoring'. To assess the factor as a obstacle we used Likert's scale; 5-agree strongly, 4-agree, 3-medial, 2-don't agree, 1-don't agree strongly. Results of this study are as follows; 1) The scores of thirteen factors indicated as obstacles were over 3(medial) except ‘lack of dietician's understanding about HACCP System(2.86$\pm$0.97)'. Also only about 63% dieticians recognized that as an obstacle factor. 2) ‘Deficiency of hygiene facilities(4.41$\pm$0.76), ‘lack of teachers' cooperation(4.23$\pm$0.77)', ‘inadequacy of the kitchen lay-out(4.19$\pm$0.95)' and ‘lack of training and educating program for employees(3.97$\pm$0.85)' scored most highly. Results from this study show that financial resources and educating system are very important to settle down HACCP system for School Foodservices successfully.

• Korean Journal of Human Ecology
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• v.13 no.3
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• pp.407-415
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• 2004

The purpose of this study was to investigate the effect of kindergarten's factors on athletic movement ability in early childhood. The factors included teacher's perception of athletic movement, length of time for physical activity, and number of athletic facilities in the kindergarten. The subjects consisted of 551 children aged from four to five years in 8 private kindergartens. The instruments used for this study were the obstacle course of Project Spectrum for measuring athletic movement ability, and the questionnaire to investigate the teacher's perception, length of time for physical activity, and number of athletic facilities in the kindergarten. The data from all the tests were analyzed by correlation and regression analyses. The results of this study exhibited that the length of time for physical activity was the most important factor among three factors, and the teachers' perception of athletic movement and the number of athletic facilities in the kindergarten were also deciding factors for the children's athletic movement ability.

• Journal of the Korea Society of Computer and Information
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• v.27 no.7
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• pp.49-55
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• 2022

In this paper, we propose an obstacle detection method that can operate robustly even in external environmental factors such as weather. In particular, we propose an obstacle detection system that can accurately inform dangerous situations in AR through DB-based feature matching and RANSAC-based multiplane method. Since the approach to detecting obstacles based on images obtained by RGB cameras relies on images, the feature detection according to lighting is inaccurate, and it becomes difficult to detect obstacles because they are affected by lighting, natural light, or weather. In addition, it causes a large error in detecting obstacles on a number of planes generated due to complex terrain. To alleviate this problem, this paper efficiently and accurately detects obstacles regardless of lighting through DB-based feature matching. In addition, a criterion for classifying feature points is newly calculated by normalizing multiple planes to a single plane through RANSAC. As a result, the proposed method can efficiently detect obstacles regardless of lighting, natural light, and weather, and it is expected that it can be used to secure user safety because it can reliably detect surfaces in high and low or other terrains. In the proposed method, most of the experimental results on mobile devices reliably recognized indoor/outdoor obstacles.

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.2217-2224
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• 2011

The railway industry has well developed with Korea's economic growth as follows - Industrial railway's electrification in 1973, Seoul subway opening in 1974, Busan subway opening in 1985, High speed railway opening in 2004. But LRT as city transportation means has been faced with many difficulties. Looking at the LRT projects implemented until now, there are some issues like the transportation demand, the quality & safety of RS and facilities, the poor management of inhabitant complaints and the failure to maintain policy coherence. They have caused not only the project schedule to extend but also the project costs to increase, even to obstruct the project progress itself in some cases. These risk factors become the obstacle of LRT project's success, but it is said that more basic problem is the lack of risk management capability of competent authorities in railway business. Under these circumstance, Railway specialized Authorities and Local government have cooperated to identify various risk factors and to prepare the measures in advance, so we try to introduce this cooperation case, which will help other local government as an useful reference.

• Journal of the Korea Safety Management & Science
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• v.16 no.4
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• pp.167-173
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• 2014

Hydrogen energy is expanding in range for civil use together with development of pollution-free power sources recently, and it is judged that the use of hydrogen will increase more as a part of carbon dioxide reduction measures according to the Climatic Change Convention. Especially, it is thought that the securement of safety of the used dispenser will be the biggest obstacle in the use of high-pressure hydrogen because the hydrogen station is operated in a high pressure. This study found risks in the process and problems on operation by making use of HAZOP(6 kinds), a qualitative safety evaluation technique, and FMEA(5 kinds), a fault mode effect analysis, for the hydrogen charging system at a hydrogen gas station, derived 6 risk factors from HAZOP and 5 risk factors from FMEA, and prepared measures for it.

• Sleep Medicine and Psychophysiology
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• v.12 no.1
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• pp.23-26
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• 2005

Bruxism is defined as 'diurnal or nocturnal parafunctional activity including clenching, bracing, gnashing, and grinding of the teeth'. Bruxism and clenching are two of the most common contributing factors in patients with temporomandibular disorders and craniofacial pain disorders. Even though many studies report the high prevalence of bruxism, its cause is still not clear. Occlusal interference has been regarded as a major etiologic factor. Nowadays, psychological stress and sleeping disorders are generally regarded as major possible etiologic factors. More than likely, the cause is multifactoral and overlapping, which makes it difficult for the practitioner to apply comprehensive and effective management strategies. Although dentists and psychologists generally believe that effective treatment is best achieved with a better understanding of the etiology of a given disorder, for now treatment for this type of disorder must proceed without a clear understanding of etiology. To overcome this obstacle, evidence-based comprehensive management protocols based on accumulated scientific findings should be provided. In this presentation, epidemiology, etiology, and the characteristics of bruxism are reviewed. Diagnostic procedures and management strategies focused on occlusal appliances and behavioral approaches are also discussed.

• Child Health Nursing Research
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• v.17 no.3
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• pp.190-197
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• 2011

Purpose: The purpose of this study was to identify factors influencing neonatal pain management by nurses in order to provide evidence-based data for the development of more efficient neonatal pain care programs. Methods: This study used a descriptive research design to survey 204 registered nurses working in neonatal intensive care units and nurseries in Busan. Data collection was done from July to September 2010. General knowledge of pain and pain scale, pain intervention, neonatal pain management, and barriers to pain management were measured. Data were analyzed using stepwise multiple regression with SPSS 17.0. Results: it was found that among the factors affecting neonatal pain management by nurses, the unit where the nurse worked was the most important influential factor, followed by knowledge of pain management, education level, and barriers from medical personnel in that order. The explanatory power of these four variables accounted for 42.0% of neonatal pain management. Conclusion: Study results indicate that it is necessary to develop education programs to increase knowledge of neonatal pain management for nurses caring for neonates. Also, plans for reduction of obstacle factors in medical personnel should be prepared.

• International Journal of Highway Engineering
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• v.18 no.3
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• pp.127-134
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• 2016

PURPOSES : Low visibility caused by dark surroundings at nighttime affects the likelihood of accidents, and various efforts, such as installing road safety facilities, have been made to reduce accidents at night. Despite these efforts, the nighttime severity index (SI) in Korea was higher than the daytime SI during 2011-2014. This study determined the factors affecting daytime and nighttime accident severity through a discriminant analysis. METHODS : Discriminant analysis. RESULTS : First, drowsiness, lack of attention, and lighting facilities affected both daytime and nighttime accident severity. Accidents were found to be caused by a low ability to recognize the driving conditions and a low obstacle avoidance capability. Second, road conditions and speeding affected only the daytime accident severity. Third, failure to maintain a safe distance significantly affected daytime accident severity and nonsignificantly affected nighttime accident severity. The majority of such accidents were caused by rear-end collisions of vehicles driving in the same direction; given the low relative speed difference in such cases, the shock imparted by the accidents was minimal. CONCLUSIONS : Accidents caused by a failure to maintain a safe distance has lower severity than do accidents caused by other factors.

• Journal of Drive and Control
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• v.15 no.4
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• pp.81-90
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• 2018

Indoor construction site such as building demolition sites, tunnel, vinyl house, and cattle shed are subject to various risk factors such as falling stones, soot and bad odors. However, most of the mini excavators have no cabin that can protect the driver from such risk factors. Therefore, researches on remote control technology of construction equipment are actively conducted as a method for protecting the driver from the risk factors occurring in the working environment. For effective remote control, it is necessary to be able to control the travelling and work using a portable small transmitter. However, due to the limitation of the size of the transmitter, complex operation control is required to control two or more actuators with a single joystick. Also, it is essential to check how remote control characteristics change in various environments such as distance, signal strength, obstacle. Therefore, in this study, an algorithm that can control two actuators simultaneously with a single joystick signal was developed, and a communication method suitable for indoor and outdoor mini construction equipment by analyzing experimentally how the remote control characteristics vary according to various work environments and telecommunication methods proposed.