• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.20 no.10
• /
• pp.1-9
• /
• 2006

The emergency lighting plan for underground space should be done with consideration of characteristics of the space. In terms of utilizing the Depthmap program from the Space Syntax theory, it is possible to analyze space quantitatively. Integration and intelligibility are major induces of this theory and we can use them as emergency lighting design parameters. For this study, human behaviors and survivor's evacuation routes in fire emergencies are analyzed through literature review. Based on those results, this study suggests the methodology of emergency lighting plan in underground space.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.7 no.2
• /
• pp.379-390
• /
• 2001

The purpose of this study was to examine the actual condition of the adolescent status delinquency and to predict that family environments, the mother's rear attitudes and personal factors influence on the adolescent status delinquency among high school students in Busan(N=404). Under these purposes of the study, the preliminary study was performed to divided the criminal delinquency from the status delinquency, and on the basis of the result of the preliminary study, the analysis of causal pathway were performed. The data were surveyed using paper and pencil self-rating. Descriptive statistics and pathway analyses were conducted to answer research objectives. The result of this study was as follows. First, the status delinquency and the criminal delinquency are different dimensions with each other independently. Second, Contents of the status delinquencies were Drinking, Smoking, Cheating examination, Stopping out, Reckless running, Gang fighting, Reading lewdness and Watching lewd video, Sexual intercourse with the other gender, etc., The criminal delinquencies were Robbing of bicycle or auto-bicycle, Taking nalcotic drug, Robbing money of drunkard and women, Rape, Setting on fire, etc. Third, The factors of structural environments of the family and the factors of mother's rear attitude influenced on the status delinquency via adolescence's compulsivity. that is to say, if the mother's rear attitude is affective, it restrains the impulsivity of adolescence causing to the restraint of the status delinquency.

• Journal of The Korean Society of Clinical Toxicology
• /
• v.13 no.1
• /
• pp.46-49
• /
• 2015

Carbon monoxide (CO) intoxication is a leading cause of severe neuropsychological impairments. Peripheral nerve injury has rarely been reported. Following are brief statements describing the motor peripheral neuropathy involved bilateral lower extremities of a patient who recovered following acute carbon monoxide poisoning. After inhalation of smoke from a fire, a 60-year-old woman experienced bilateral leg weakness without edema or injury. Neurological examination showed diplegia and deep tendon areflexia in lower limbs. There was no sensory deficit in lower extremities, and no cognitive disturbances were detected. Creatine kinase was normal. Electroneuromyogram patterns were compatible with the diagnosis of bilateral axonal injury. Clinical course after normobaric oxygen and rehabilitation therapy was marked by complete recovery of neurological disorders. Peripheral neuropathy is an unusual complication of CO intoxication. Motor peripheral neuropathy involvement of bilateral lower extremities is exceptional. Various mechanisms have been implicated, including nerve compression secondary to rhabdomyolysis, nerve ischemia due to hypoxia, and direct nerve toxicity of carbon monoxide. Prognosis is commonly excellent without sequelae. Emergency physicians should understand the possible-neurologic presentations of CO intoxication and make a proper decision regarding treatment.

• International Journal of Naval Architecture and Ocean Engineering
• /
• v.10 no.6
• /
• pp.762-781
• /
• 2018

This paper presents the ballistic armor performance examination and thickness estimation for the latest naval ship structure materials in the Republic of Korea. Up to date, research regarding methods of ballistic experiments establishing database on the latest hull structure materials as well as a precise method of estimating required thickness of armor against specific projectiles have been rarely researched. In order to build a database and estimate proper thicknesses of structure materials, this study used four structure materials that have been widely applied in naval ships such as AH36 steel, AL5083, AL5086, and Fiber Reinforced Plastics (FRP). A $7.62{\times}39mm$ mild steel core bullet normally fired by AK-47 gun was considered as a threat due to its representativeness. Tate and Alekseevskii's penetration algorithm was also used to calculate a correction factor (${\alpha}$) and then estimate the armor thickness of naval ship hull structure materials with a given impact velocity. Through live fire experiments, the proposed method performance difference was measured to be 0.6% in AH36, 0.4% in AL5083, 0.0% in AL5086, and 8.0% in FRP compared with the experiment results.

• Journal of the Korean Institute of Gas
• /
• v.11 no.3
• /
• pp.13-18
• /
• 2007

The multivariate statistical analysis, using the multiple linear regression(MLR), have been applied to analyze and predict the flash points of binary systems. Prediction for the flash points of flammable substances is important for the examination of the fire and explosion hazards in the chemical process design. In this paper, the flash points are predicted by MLR based on the physical properties of pure substances and the experimental flash points data. The results of regression and prediction by MLR are compared with the values calculated by Raoult's law and Van Laar equation.

• The Korean Journal of Emergency Medical Services
• /
• v.25 no.1
• /
• pp.57-72
• /
• 2021

Purpose: The purpose of this study was to provide basic data for developing strategic programs based on the types of perception to aid in the coping strategy of 119 emergency medical technicians who experienced have violence. Methods: The subjects were 119 emergency medical technicians working out of hospitals in Korea. Data were collected from March 10, 2019, to June 30, 2019. Q samples of 37 statements and P samples of 36 persons were taken using PC QUANL software. Results: As a result of the study, four types of coping with violence experiences were identified; these four types explained 53.79% of all variables from the examination. The types were labeled as the cooperation seeking and manual emphasis type, emotional suppression and stability seeking type, active response and business continuation type, communication empathy and recovery effort type. Conclusion: The Fire Department requires institutional measures to lower violence during field activities, and it will be necessary to develop a policy according to the type of perception of coping behaviors.

• Journal of Korean Medical classics
• /
• v.35 no.1
• /
• pp.155-172
• /
• 2022

Objectives : Contents on the 64 trigrams in major medical texts from early to late Joseon such as the Uibangyuchwi(醫方類聚), Donguibogam(東醫寶鑑), Somundaeyo(素問大要), Gyeokchigo(格致藁) were analyzed to examine their characteristics and historical context. Methods : Related contents in each medical texts were collected, sorted and analyzed for thorough examination. Results : The study of Changes which was widely applied in the field of medicine throughout the Joseon period focused more heavily on each of the trigram patterns, especially in regards to the qi interaction between the upper and lower axis of the body, rather than the various meanings of the ten wings[十翼]. This is a result of the Jing-Qi-Shen perspective of the body and the universe that transcends the Daoist inner cultivation method[內丹術], under which concepts related to qi circulation such as the opening and closing[闔闢] of the Heaven[乾] and the Earth[坤], the interaction between Water[水] and Fire[火] were considered more important. Conclusions : The historical context of the study of medicine and Changes[易] of Korea could be grasped through analysing the 64 trigrams in medical texts of each period in Joseon. Further research with the field of History of Changes studies is much anticipated.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2023.11a
• /
• pp.47-48
• /
• 2023

Reinforced concrete structures are an integrated structure in which reinforcing bars are placed on the tensile side of the beam to compensate for concrete that is strong in compression but weak in tension, so that the concrete receives compressive force and the reinforcing bars receive tensile force. It is durable, fire-resistant, economical, and adapts to the shape and dimensions of the structure. It has been widely used for a long time because it can be made freely without restrictions. However, reinforced concrete structures have the disadvantage that cracks occur easily, so they are repaired using a cross-sectional construction method. During this process, problems such as the repair part falling off occurred, so in order to solve the problem, stress changes due to changes in the size of the repair part were examined. As a result, based on the elastic modulus ratio of 1.0, the stress tended to increase as the size of the repair part decreased when it was less than 1.0, and the opposite tendency was seen when it was more than 1.0. This is believed to be due to an increase in the area of the part with a large elastic modulus.

• Journal of Korean Society of Occupational and Environmental Hygiene
• /
• v.17 no.2
• /
• pp.111-119
• /
• 2007

Firemen are directly exposed to various harmful chemicals, physical factors and mental stress during rescue and fire-fighting. In fire extinguishing, unstable posture, poisonous gas, dust, high temperature and heavy equipments are possible hazardous factors. The alertness for emergency, shift work, job strain and stress are also possibly hazardous. Therefore, this study aimed to investigate the prevalence of musculo-skeletal symptoms and job stress and to determine risk factors in firemen. This study was carried out in a group of 226 firemen in Busan City, Korea. Standardized Nordic Questionnaire was used to investigate the prevalence of musculo-skeletal symptoms and Psycho-social Well-being Index (abbreviated PWI) was used to investigate the prevalence of job stress. General and occupational characteristics were included education, marital status, alcohol and smoking history, working duration, and work shift system. Body mass index (BMI) scores were calculated by physical examination including height and weight. Concerning musculo-skeletal complaints, the commonest site was neck, and shoulder, lower back, upper back were the next. Complaint site above one area of body was about 80%. From multiple logistic regression analysis, working duration was significant variable in musculo-skeletal symptoms. Odds ratio were 15.4 in working duration. About 16.8% was high risk stress group. From multiple logistic regression analysis, shift work and alcohol drinking were significant variables in PWI scores. Odds ratios were 2.25 in shift work. Accordingly, interventions are needed for health promotion of long term and shift worker.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.3
• /
• pp.44-50
• /
• 2021

This study is a descriptive research study to determine the effect of job stress and job satisfaction of 119 paramedics on their job performance ability. The subjects were 119 paramedics working at the fire department who agreed to participate in the study, and data collection was conducted from July 1st to September 10th, 2020. Data analysis was performed using the SPSS 23.0 program, with frequency and percentage, mean and standard deviation, correlation analysis, t-test, and ANOVA. As a result, the average job stress, job satisfaction, and job performance ability of 119 paramedics were 2.85±0.29 points, 3.35±0.30 points, and 3.53±0.89, respectively. A higher job satisfaction indicated higher job performance ability. An examination of the characteristics of the variables according to the general characteristics showed that the job performance ability was related significantly to the marital status, age, and first aid experience. Based on this, to establish a positive professional intuition to increase the job performance ability of 119 paramedics, lower job stress, and increases job satisfaction, it is important to raise awareness of job satisfaction, establish a job view, and promote job satisfaction through performance improvement. Program development and education programs for children should be actively carried out.rough performance improvement. Program development and education programs for children should be actively carried out.