• Journal of Hydrogen and New Energy
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• v.24 no.3
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• pp.264-274
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• 2013

Piping systems play an important role in gas and oil transferring system. In the piping system, there are many elements, such as valves and flow meters. In order to check their normal operating conditions, each signal from each element is displayed on the monitor in the pipe control room. By the way, there are several accidental cases in the piping system even if all signals from the local elements are judged to be normal on the monitor in the control room. Further, opposite cases often happen even the monitor shows abnormal while the local elements work normal. To overcome this abnormal functions, it is not so easy to construct the environment in which sensors detecting the working states of all elements installed in the piping system. In this paper, a new non-contact measurement technique which can calculate the elements' delicate displacements by using a PIV(particle image velocimetry) and diagnose their working states by using a neural network is proposed. The measurement system consists of a host computer, a micro system, a telescope and a high-resolution camera. As a preliminary test, the constructed measurement system was applied to measure delicate vibrations of mobile phones. For practical application, a pneumatic system was measured by the constructed system.

• Journal of the Korean Society of Marine Environment & Safety
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• v.13 no.4
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• pp.107-112
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• 2007

The vibration generated on shipboard is very important because it greatly affects on the comfortable mind of passenger and working conditions of crews. Shipboard vibration is closely concerned with the development of propulsion method and the type of main engine to decide speed of ship. To make the propulsion power, the main engine of ship have continuous explosion process in engine room, so the shipboard vibration is generated. The shipboard vibration causes the physiological and psychological damages to human body. In the case of the human body exposed to the shipboard vibration, the evaluation of human exposure to whole-body vibration is prescribed in ISO 6954 : 2000(E). In this paper, to evaluate the shipboard working environment, two kinds of vibration levels onboard ship were measured and compared with one another between engine rooms, engine control rooms and wheel house by the regulation of ISO 6954 : 2000(E).

• Journal of Fisheries and Marine Sciences Education
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• v.22 no.2
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• pp.218-230
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• 2010

This study was conducted to determine the effect of the noise level on the boarding environment in a stern trawl ship, KAYA(GT: 1,737 tons, Pukyong National University). We measured the noise level at a working, an accommodation and a teaching area, and an engine space on January 9, 2010 while the KAYA was sailing on a liner sea route. At the working area, the ranges of the noise rating number(NRN) and the NRN determination frequency(FNRN) were from 44 to 73 and from 1000 to 2000Hz, respectively. The results were generally satisfied the criteria of the International Maritime Organization(IMO). The noise level at the area, except the radio room(w2), was exceeded the criteria(50dB(A)) for the efficient studying and working. The noise level at the engine control room and the machine workshop was respectively exceeded 1.2dB and 9.5dB than the criteria caused the conversation disturbance (70dB(A)). At the accommodation, NRN and FNRN were from 49 to 54 and from 1000 to 4000Hz, respectively. The noise level was below the criteria of IMO, but above 40dB(A) caused the sleep disturbance. At the teaching area, NRN and FNRN were from 44 to 63 and from 500 to 2000Hz, respectively. The noise level was exceeded than the criteria(50dB(A)) for the efficient studying. At the engine space, NRN and FNRN were from 95 to 100 and from 2000 to 4000Hz, respectively. The noise level was above the criteria of IMO(90dB(A)) for the residence, while it was not exceeded 110dB(A) for the transient.

• Journal of Preventive Medicine and Public Health
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• v.19 no.2 s.20
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• pp.224-232
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• 1986

This study was conducted to evaluate health consequences of phenol resin workers for 6 weeks from February 21, to March 28, 1986. The subject population was 26 in a factory with phenol resin and control group was 30 non-exposed workers who were working in the other factory. The biological parameters chosen for this study were phenol concentration in working room-air, total phenol level in urine and BUN of phenol resin workers. The phenol concentration in working room-air and total phenol in urine were significantly correlated (r=0.791, p<0.01). The frequency of symptom and sign in phenol resin workers were higher than control group. The frequent symptom and sign were coughing, weight loss, poor appetite, headache, dyspnea, eye irritation and tinnitus, in order. Total phenol in urine was not reversed to normal range in spite of interruption of exposure for 4 days. The BUN value in blood and total phenol in urine were not correlated.

• Women's Health Nursing
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• v.26 no.2
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• pp.171-179
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• 2020

Purpose: This study aimed to investigate the effects of exposure to endocrine disruptors, burnout, and social support from peers on premenstrual syndrome (PMS) in nurses. Methods: This descriptive correlational study was conducted among 122 nurses under the age of 49 working at a university hospital. The participants answered self-report questionnaires. The data were analyzed using the t-test, analysis of variance, Pearson or Spearman correlation coefficients, and hierarchical multiple regression in IBM SPSS version 23.0. Results: The mean age of the nurses was 28.9 years. Of these nurses, 49.2% were working in a general ward, 24.6% in the intensive care unit, 14.8% in the emergency room, and 11.4% in an outpatient department. The explanatory power of the model was 38.3%, and it was statistically significant (F=11.74, p≤.001). Exposure to endocrine disruptors (β=0.32, p<.001) was the most powerful variable affecting PMS, followed by burnout (β=0.27, p=.001), working in the intensive care unit or emergency room (β=0.22, p=.003), family history of PMS (β=0.19, p=.009), and support from coworkers (β=-0.15, p=.043). Conclusion: Based on these findings, it is necessary to develop an intervention program to reduce the symptoms of PMS. Additionally, further studies are needed to develop and evaluate measures to minimize exposure to endocrine disruptors and burnout in order to alleviate PMS among nurses.

• The Journal of Korean Academic Society of Nursing Education
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• v.29 no.1
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• pp.86-97
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• 2023

Purpose: This study aimed to assess exposure to traumatic events, knowledge and attitudes concerning post-traumatic stress disorder (PTSD) and the level of resilience among nurses and paramedics working in emergency departments. Methods: Data were collected from May 22 to June 12, 2022, using a self-administered survey questionnaire. The participants comprised 135 nurses and 80 paramedics working in emergency departments. The collected data were analyzed with descriptive statistics, a t-test, and an analysis of variance with Scheffé's test. Results: Compared with emergency room nurses, paramedics were more positive about the government's spending on job opportunities for people with PTSD. There were no significant differences in attitude regarding government strategies and people with PTSD between nurses and paramedics. Paramedics had higher scores on the effective treatment for PTSD, while emergency room nurses showed higher scores on effective psychotherapy. General knowledge of PTSD differed according to sex (t=-2.33, p=.021) and education level (F=3.21, p=.042). Resilience scores differed significantly according to sex (t=2.02, p=.045), education level (F=4.10, p=.018), self-reported economic state (F=10.34, p<.001), and self-reported health (F=11.57, p<.001). Conclusion: The findings support that emergency department nurses and paramedics are in need of self-care programs to support their mental health and indicate that intervention programs should be developed to enhance resilience in emergency department professionals.

• Journal of the Korean Society of Costume
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• v.25
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• pp.171-181
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• 1995

The purpose of this study was to evaluate the display as an information source use, and to find out the reaction of adult women to dis-play and perceived risk and influence of it in apparel buying. 511 college students, housewives and work-ing women living in Masan, Jinju and Sam-chunpo were selected as samples for this re-search. The result of this research can be sum-marized as follows : 1. Display was in the second place as infor-mation sources use exercising influence on ap-parel buying. The most important imformation sources use was the apparels of other persons. The other's apparels provide valuable aid as an imformation sources use for housewives, and display are important for college students and working women. 2. The ways of response were different ac-cording to the sample. Working women said that looking at the display gives pleasure to them, and they were attracted to sight of dis-play and housewives usually walk into the dis-play room. The point of interest in display were also different according to the samples. 3. All respondent said they perceived some kinds of risks in display. Howsewives reco-gnized social and psycological risk and working women recognized the economic risk and fashionability loss. 4. In apparel buying, college students showed impulsive purchase, but housewives and working women made comparision with other shopping place before they buy it.

• Korean Journal of Adult Nursing
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• v.21 no.1
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• pp.53-61
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• 2009

Purpose: This study was to provide baseline data to arrange systematic management for the infectious waste. Methods: This data was collected by self-reported questionnaires from a total of 419 subjects, ie nurses, nurse's aides and laboratory technicians working at a university hospital located in G city. The collected data were analyzed by t-test or ANOVA, Tukey test, Pearson's correlation, and multiple regression analysis using SPSS/WIN 12.0. Results: The knowledge of the infectious waste was statistically significant in type of staff and level of education. Attitude was statistically significant in type of staff, age group, level of education, working period, and marital status. And also the practice of the subject was statistically significant in type of staff, age group, education level, the working periods, and marital status. There was positive association between attitude and practice(r=.63, ${\rho}$< 001). By means of multiple stepwise regression analysis, total variance explained by the attitude towards infectious wastes, single employee, and the working periods less than ten years was 44% of the practice of infectious wastes. Conclusion: An educational program focusing on strategy to change employee's attitude can be effective for building a well-organized management system.

• The Journal of Korean Academic Society of Nursing Education
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• v.10 no.1
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• pp.64-74
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• 2004

This study was conducted to investigate what contents nurses want in the intensive major course of junior nursing college. Data were collected for four months from October 2002 to February 2003 by structured questionnaires. Subjects were 240 registered nurses in working at five hospitals and four public health centers and elementary or middle schools in the capital and its suburbs and country. The collected data were analyzed using SPSS 8.0 program. The results of this study were summarized as follows : 1. Nurses working at hospitals want the programs which involve the contents as follows : emergency nursing/CPR, infection control, critical care, caner pt. care, pain control, hospice, pulmonary disease pt. care, analysis of lab. exam, heart disease pt. care, chronic disease pt. care, DM pt. care, digestive-system disease pt. care, nervous-system disease pt. care, elderly pt. care, immune-system disease pt. care, endocrine-system disease pt. care. 2. Nurses working at public health centers want the programs which involve the contents as follows : home nursing, family nursing, management of DM, HT, degenerative disease, and chronic liver disease, elderly pt. care, health education, maternity nursing, rehabilitation nursing. 3. Nurses working at elementary or middle schools want the programs which involve the contents as follows : prevention of drug abuse or misuse, sex education and consultation, health education, consultation technique, emergency care, prevention of child obesity, prevention and management of adult disease in children, teaching method, method of school health room management.

• Journal of the Korean Society of Physical Medicine
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• v.17 no.2
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• pp.63-73
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• 2022

PURPOSE: This study examined the actual condition of physical therapy in residential facilities for the disabled and determined the degree of job satisfaction of physical therapists. METHODS: In this study, data were collected using a structured questionnaire targeting 117 physical therapists (male: 49, female: 68) working in residential facilities for the disabled. The questionnaire consisted of 21 items, including six general characteristics, one job satisfaction, and 14 actual situation-related items. RESULTS: The job satisfaction of the physical therapists working in residential facilities for the disabled was 3.81 ± .83, which was between 'normal' and 'satisfactory'. One physical therapist worked in 91.5% of places. The physical therapy room was used only by the physical therapist, occupational therapist or speech therapist, and a nurse and other departments in 65.8%, 9.4%, and 23.1% of cases. On average, six to 10 patients per day were treated the most with 45.3%, followed by physical therapy alone at 19.7%, and work related to medical rehabilitation and other departments at 72.7%. A higher number of overtime hours and nurses resulted in lower job satisfaction. CONCLUSION: The job satisfaction of physical therapists working in residential facilities for the disabled was similar to those of physical therapists working in medical institutions, but the factors affecting the job satisfaction were different. Professionalism in physical therapy was not secured, and the relationships with colleagues were an important factor in increasing job satisfaction.