• Journal of Families and Better Life
• /
• v.21 no.1
• /
• pp.1-12
• /
• 2003

Day care center for the elderly is an alternative for community care for frail elderly who need social participation and physical cares and services outside the family. The purpose of this study was to identify the present situation of day care center for the elderly and to suggest desirable interior space plans for elderly day care center. Data were collected by two ways; a mail survey and case studies of existing day care centers. Five cases of day care centers were analyzed to find out Physical and space problems, available programs and services. Also, the staffs in 96 day care centers for the elderly in nationwide were selected for a mail survey and 68.8 percentage of all was collected and analyzed. From the result of case studies, narrow space and lack of accessibility features for wheelchair or other prosthetic devices were the major problems. From the result of a mail survey analysis, the elderly users were over 73 years old, and high proportion had suffered from dementia and apoplexy Also, staffing ration was 1:7 In other words, one staff was caring of 7 old people, and supporting staff was insufficient. Therefore, supportive, therapeutic environment Was more important issue to improve quality of care. Separate program room and outdoor space, lounging space, treatment room by gardening, separate counselling room, bedroom, a simple kitchen unit, staff office, separate physical treatment room, resting room for staff was indicated more necessarily. When priority of planning interior space was safety followed by accessability and convenience, it was also reported that sire of each room was generally narrow. The most serious problem in interior space was the lack and narrowness of space, and accessible features for mobility. Based on the literature review and the findings of this study, two types of floor plans for elderly day care center were suggested;‘a mixed type for the elderly with and without dementia’and‘a separate type for the elderly with dementia.’The main goals for designing interior space for two types of elderly day care center were to provide safe environment, encouraging environment for remaining abilities of users, sanitary environment, therapeutic environment, familiar environment, and socially-encouraging environment. The recommendations for further studies were suggested.

• Progress in Superconductivity and Cryogenics
• /
• v.26 no.2
• /
• pp.24-30
• /
• 2024

Metal 3D printing is utilized in various industrial fields due to its advantages, such as fewer restrictions on production shape and reduced production time and cost. Existing research on 3D printing metal materials focused on changes in material properties depending on manufacturing conditions and was mainly conducted in a room temperature environment. In order to apply metal 3D printing products to cryogenic applications, research on the properties of materials in cryogenic environments is necessary but still insufficient. In this study, we evaluate the properties of stainless steel (STS) 316L and CuCr1Zr manufactured by Laser Powder Bed Fusion (LPBF) in a cryogenic environment. CuCr1Zr is a precipitation hardening alloy, and changes in material properties were compared by applying various heat treatment conditions. The mechanical properties of materials manufactured using the LBPF method are evaluated through tensile tests at room temperature and cryogenic temperature (77 K), and the thermal properties are evaluated by deriving the thermal conductivity of CuCr1Zr according to various heat treatment conditions. In a cryogenic environment, the mechanical strength of STS 316L and CuCr1Zr increased by about 150% compared to room temperature, and the thermal conductivity of CuCr1Zr after heat treatment increased by about 6 to 10 times compared to before heat treatment at 40 K.

• Journal of the Korea Convergence Society
• /
• v.12 no.11
• /
• pp.155-160
• /
• 2021

This study analyzed the awareness and performance of physical therapists' infection control using IPA. The four areas were divided into handwashing, personal management, Treatment room environment management, and infection control education, and a survey was conducted on awareness and practice. General characteristics were analyzed for frequency, and recognition and performance were analyzed through paired t-test and Pearson's correlation. Handwashing was both high and infection, control education had high performance, but low awareness. The performance of Treatment room environment was high, but the awareness was low, and personal management was both low. Therefore, based on this study, there is a need for a strategy to improve the awareness of infection control education, a strategy to improve performance in the treatment room environment, and a strategy to improve both performance and awareness in Personal management.

• Journal of People, Plants, and Environment
• /
• v.22 no.3
• /
• pp.321-332
• /
• 2019

The purpose of this study is to investigate the changes of sensory and visual perception of children with intellectual disabilities by conducting psychomotorik (psychomotor activity) in the forest and indoor treatment rooms. Accordingly, this study divided 18 children with intellectual disabilities living in the facility for persons with disabilities located in Seoul into three groups: the experimental group participating in psychomotorik in the forest, the comparative group participating in psychomotorik in the treatment room, and the control group without any treatment at all. The program was conducted for 32 weeks, 4 hours a month. The results showed that psychomotorik promoted the sensory and visual development of children with disabilities. Psychomotorik in the forest showed significant effects on touch and activity level, form constancy and eye-hand coordination. Psychomotorik in the treatment room showed significant improvement in figure-ground with reduced motion. This suggests that psychomotorik in the forest as well as indoors is a positive factor for sensory adaptation reaction and visual development of children with intellectual disabilities.

• Korean Journal of Veterinary Service
• /
• v.28 no.3
• /
• pp.225-234
• /
• 2005

Egg has been considered as one of the most important food sources in both nutritionally and economically. However, because the hazards of egg flow chains' complexity from producers to consumers and the insufficiency of cold chain systems in Korea are still remained, preventive measures for egg safety should be established. This experiment was carried out to investigate the changes of egg qualify during storage in order to find out the proper storage condition and eggshell treatment. Eggs were stored at cold condition $(5^{\circ}C,\;relative\;humidity;\;RH:\;65\pm3\%)$ and room Condition $(1st: Sep\; 6\~Nov\; 15,\;2001,\; 10\~30^{\circ}C,\;RH\;41\~86\%,\;2nd;\; Dec\;13,\;2001\~Feb\;21,\;2002,\;4\~23^{\circ}C,\;RH\;36\~89\%)$ after eggshell treatment (unwashed, washed and coated egg) during'10 weeks and examined weight loss and interior quality periodically. Weight loss was in decreasing order room washed > room unwashed > cold washed > cold unwashed > room coated > cold coated egg. And, Haugh unit was decreasing order room washed > room unwashed > room coated > cold washed > cold unwashed > cold coated egg. Our findings show that both coated eggs and refrigeration reduces the rate of decline in Haugh units and egg weight. And, washed eggs had lower average Haugh units and a higher weight loss than any of the eggshell treatment in both storage conditions. Conclusively, for washing eggshell, 150 ppm of sodium hypochlorite, regular exchange and temperature control of water should be consistent and also eggs should be dried immediately after washing. Also, national guidelines for temperature and moisture of storage places, transportation and expiration data should be established to keep quality and weight loss of eggs. Storage temperature that is a critical factor in the quality and safety of eggs should be kept under 12'c and labelling of expiration date should be obligatory.

• Journal of the Korean Society for Heat Treatment
• /
• v.34 no.1
• /
• pp.10-16
• /
• 2021

Exhaust manifold is a very important component that is directly connected to air environment pollution and that requires strict mechanical properties such as high temperature fatigue and oxidation. Among stainless steels, the ferritic stainless steel with body-centered cubic structure shows excellent resistance of stress-corrosion cracking, ferromagnetic at room temperature, very excellent cold workability and may not be enhanced by heat treatment. The microstructural characteristics of four cast ferritic stainless steels which are high heat-resistant materials, were analyzed. By comparing and evaluating the mechanical properties at room temperature and high temperature in a range of 400℃~800℃, a database was established to control and predict the required properties and the mechanical properties of the final product. The precipitates of cast ferritic stainless steels were analyzed and the high-temperature deformation characteristics were evaluated by comparative analysis of hardness and tensile characteristics of four steels at room temperature and from 400℃ to 800℃.

• The Transactions of the Korean Institute of Electrical Engineers D
• /
• v.52 no.4
• /
• pp.252-257
• /
• 2003

Acrophobia is an abnormal fear of heights. Medications or cognitive-behavior methods have been mainly used as a treatment. Lately the virtual reality technology has been applied to that kind of anxiety disorders. A virtual environment provides patient with stimuli which arouses phobia, and exposing to that environment makes him having ability to over come the fear. Recently, the patient can take diagnose from a medical doctor in distance with the telemedicine system. The hospital and doctors can get the medical data, audio, video, signals in the actual examination room or operating room via a live interactive system. Audio visual and multimedia conference service, online questionary, ECG signal transfer system, update system are needed in this system. Virtual reality simulation system that composed with a position sensor, head mount display, and audio system, is also included in this telemedicine system. In this study, we tried this system to the acrophobia patient in distance.

• Journal of the Korean Society of Physical Medicine
• /
• v.10 no.1
• /
• pp.37-43
• /
• 2015

PURPOSE: The purpose of this study is to investigate the effect of the physical therapy treatment room environment using microwave diathermy on the autonomic nervous system of human body. METHODS: Participants were 24 healthy adults. Standard deviation of all normal R-R intervals(SDNN), root mean square of successive differences(RMSSD), low frequency(LF), high frequency(HF), LF/HF ratio were compared in microwave irradiation and non-irradiation group. Data were analyzed in Wilcoxon's signed-ranks test and Mann-Whitney U test. RESULTS: Standard deviation of all normal R-R intervals (SDNN), root mean square of successive differences (RMSSD), low frequency(LF), high frequency(HF), LF/HF ratio were not significantly different in microwave irradiation group. Standard deviation of all normal R-R intervals(SDNN), root mean square of successive differences (RMSSD), low frequency(LF), high frequency(HF), LF/HF ratio were not significantly different in microwave non-irradiation group. Standard deviation of all normal R-R intervals(SDNN), root mean square of successive differences (RMSSD), low frequency(LF), high frequency(HF), LF/HF ratio were not significantly different between two groups. CONCLUSION: There was no significant change in the sympathetic nervous system and parasympathetic nervous system regardless of the presence of microwave irradiation. There was no significant change in the autonomic nervous system adaptability regardless of the presence of microwave irradiation.According to this study, microwave diathermy does not have significant effect on the autonomic nervous system.Future study is necessary to investigate the long term effect of the physical therapy treatment room environment using microwave diathermy on the autonomic nervous system of the human body.

• Journal of Bio-Environment Control
• /
• v.26 no.2
• /
• pp.108-114
• /
• 2017

The effect of 1-methylcyclopropene (1-MCP) at $1.0{\mu}L{\cdot}L^{-1}$ was compared with control and $10{\mu}L{\cdot}L^{-1}$ ethylene treatment to evaluate softening control of apple (Malus ${\times}$ domestica Borkh.) fruit for 180 days at $0.5^{\circ}C$ in the air, followed for 28 days at a room temperature. 1-MCP or 1-MCP+ethylene treatment maintained high fruit titratable acidity and firmness after 120 days during the cold storage, which was similarly observed for 28 days at a room temperature. 1-MCP treatment maintained fruit firmness more than 14 N during the cold storage and shelf-life at room temperature. Fruit surface red color was not consistently affected by the treatments during the cold storage but enhanced more than 4.0 by 1-MCP at 21- and 28-days of room temperature. Control or ethylene treatment advanced overall preceeding of fruit softening as rapid ethylene production and respiration rates at 90 days during the cold storage increased to a climacteric maximum. Therefore, pre 1-MCP-treated fruit maintained high fresh condition at a long-term low storage + approximately one month room temperature-storage under $10{\mu}L{\cdot}L^{-1}$ ethylene treatment.

• Journal of radiological science and technology
• /
• v.45 no.3
• /
• pp.233-239
• /
• 2022

In the radiology department, where radiation is used in medical institutions to perform examinations with various equipment, the field of surgical treatment is the intervention angiography room. Accordingly, strict infection control is required. The purpose of this study was to determine the contamination status by detecting pathogens before and after disinfection in the intervention angiography room, and to determine the degree of death by using a disinfectant, sodium dichloride isocyanurate, which is mainly used in the intervention angiography room. The subjects were 10 medical institutions of general hospital level or higher with an intervention angiography room in the P city, and 12 places with high contact frequency during examinations and procedures were sampled and requested to an analysis institution. As for the sample collection method, up/down, left/right directions were used to increase precision. Before disinfection, all procedures were completed, and after disinfection, exposure was performed using a disinfectant for at least 10 minutes, and detection was performed using a transport medium. As a result, in the pathogen analysis, most pathogens were detected in a humid environment or in a place with high contact frequency for microorganisms to thrive. The detected pathogens were found in the general environment or were human flora. It is a pathogen that does not cause disease under normal healthy host conditions. However, it was found to be an opportunistic infection that causes opportunistic infection depending on the case or situation in which the body's resistance is weakened. In addition, as a result of using the disinfectant mainly used in the intervention angiography room, it was found that more than 93.3% of them died. Therefore, the data of this study will be used as good basic data for the evaluation of pathogens in the intervention angiography room and will be of great help in infection control.