• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.11 no.5
• /
• pp.556-564
• /
• 2018

The purpose of this study is to investigate the difference in social support and job satisfaction of disabled facility workers according to their general characteristics and job characteristics, and to understand the effect of social support on job satisfaction. A questionnaire was conducted against 143 disabled facility workers in D metropolitan city, from 5 January to 29 February 2016. The results of the study are as follows: first, no significant difference was found in the social support of disabled facility workers according to their general characteristics, and only the factor of job area showed significant difference in social support according to job characteristics. Secondly, there was no significant difference in job satisfaction of disabled facility workers according to their general characteristics or job characteristics. Thirdly, support of the superior, as a sub-factor of social support recognised by the disabled facility worker, was found to have a significant positive effect on job satisfaction. This study seeks to become foundational data for the development of plans to improve the job satisfaction of disabled facility workers.

• Transactions of the Korean Society for Noise and Vibration Engineering
• /
• v.20 no.11
• /
• pp.1001-1008
• /
• 2010

The architectural, facility makes the housing environment more pleasant, while too much noise coming from machinery room is detrimental to the workers physically and mentally. Therefore, more sound insulation and sound proof policies are increasingly required. However, as the annoyance caused by facility noise is influenced by various human listening characteristics as well as physical characteristics such as sound pressure level, it requires subjective evaluation characteristics through acoustic-psychological approach. For this purpose, the facility noise in the machinery room was actually measured and analyzed in the field to understand physical characteristics, and the correlation between physical evaluation value and psychological response value through listening test. Further, this study aims at presenting the data to set the standards of 'Just noticeable difference' of the facility noise together with reasonable evaluation with psychological reaction, through the grading of facility noise using trend formula. In the result, 13 stages of physical properties were forecasted for each evaluation method, together with 'Just noticeable difference' using the grading of architectural facility noise.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.35 no.4
• /
• pp.110-117
• /
• 2012

The demand for facility used in producing multi-products is changed dynamically for discrete and finite time periods. The excess or the shortage for facility is occurred according to difference of the facility capacity size and demand for facility through given time periods. The shortage facility is met through the outsourcing production. The excess facility cost is considered for the periods that the facility capacity is greater than the demand for the facility, and the outsourcing production cost is considered for the periods that the demand for facility is greater than the facility capacity. This paper addresses to determine the facility capacity size, outsourcing production products and amount that minimizes the sum of the facility capacity cost, the excess facility cost and the outsourcing production cost. The characteristics of the optimal solution are analyzed, and an algorithm applying them is developed. A numerical example is shown to explain the problem.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.21 no.10
• /
• pp.537-544
• /
• 2009

On account of the technological development, intelligent building is on increasing where the artificial regulation on indoor environment is possible, thence the concern about those facilities such as water-supply facility, water-heater and drainage facility has becomes higher. However, due to diversification and complicated system of the facility-equipments, the noise generating from such facility equipment is gradually becoming a problem, and since especially equipment noises arising at the machine room frequently infringe into the resident's pleasant living environment with the complex types of an air-borne sound and a structure-borne sound, it is becoming the civil complaint. On such viewpoint, this Study ever observed the characteristics of noise generating from various facility-equipments in the building, and intended to evaluate the facility-noises by use of the valuation index such as PSIL, N, NC, NR. As result of, the facilities noise which happens in the machine room makes normal conversation very difficult due to high sound pressure level. Based on such data, this study is willing to present it as an essential material for establishment an efficient measure against the facility-noises arising at machine room hereafter.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2008.11a
• /
• pp.431-436
• /
• 2008

The aim of the research is to find out facility types and chracteristics of the community center in Seoul. To do so, we picked up 40 examples of a densely populated and low resident district in Seoul and then analyzed to find out the typical types and characteristics. The result of this study can be summarized as follows : By classifying community center complexs largely into a complex type with similar facilities and a complex type with different facilities, 8 types were derived. Depending on 4 characteristics, such as spatial composition, entrance type, circulation form, and complex facility type, 12 types of community center complexes were derived, and the characteristics of each type are presented.

• Journal of The Korea Institute of Healthcare Architecture
• /
• v.18 no.2
• /
• pp.77-84
• /
• 2012

This study is to understand the architectural types and characteristics of the medical facilities during ancient period. The study is based on the research of the medical and architectural history. The medical or healthcare facilities are influenced by their social, cultural and conceptual idea, especially how they think about 'disease', 'cure' and the 'medicine'. As the results of the examination of this study can be summarized as followings. Firstly, Ancient medical facilities are classified into four types according to the ideas of 'disease' and 'cure' ; 1) God oriented facility 2) health welfare facility 3) treatment oriented facility 4) practice & educational facility. Secondly, there are three typical types of the spatial characteristics what modern hospitals have ; 1) nursing ward 2) treatment ward 3) hostel or hospice. And they are all assembled around the courtyard in common. Thirdly, their architectures are not 'designed' but 'derived' plan by reasonable other building types, and transformed by medical function. Fourthly, a consideration of the surrounding circumstances is the most important point to make the medical health facilities during ancient period.

• Journal of Biosystems Engineering
• /
• v.28 no.2
• /
• pp.117-126
• /
• 2003

This study was conducted to develop precision control system fur cold storage facility that could offer safe storage environment for green grocery. For that reason of neuro-fuzzy control system with learning ability algorithm and single chip neuro-fuzzy micro controller was developed for cold storage facility. Dynamic characteristics and hunting of neuro-fuzzy control system were far superior to on-off and fuzzy control system. Dynamic characteristics of temperature were faster than on-off control system by 1,555 seconds(123% faster) and fuzzy control system by 460 seconds(36.4% faster). When system was arrived at steady state. hunting was ${\pm}$0.5$^{\circ}C$ in on-off control system, ${\pm}$0.4$^{\circ}C$ in fuzzy control system, and ${\pm}$0.3$^{\circ}C$ in neuro-fuzzy control system. Hunting of humidity and wind velocity was also controlled precisely by 70 to 72.5% and 1m/s For storage experiment with onion, characteristics of neuro-fuzzy control system were tested. Dynamic characteristics of neuro-fuzzy control system made cold storage facility conducted precooling ability and minimized hunting.

• Journal of the Korean Home Economics Association
• /
• v.40 no.9
• /
• pp.191-205
• /
• 2002

The purpose of this study is to identify the homelike design characteristics of elderly housing facility. To investigate what the preference of physical design characteristics are, interview was done by unstructured questionnaire to 30 middle aged and middle income group housewives living in Seoul. It was identified that preferred homelike physical characteristics of the houses were composed of 4 themes, housing types, building appearences and garden, floor plan and natural and social environments of its location. Their desirable housing standard was amenity which is the highest level of home environment. In their later life, they wanted to live in vicinity of Seoul to enjoy cultural benefits of the city and active outdoor activities in sunny, natural suburban environment. They liked a spacious, clean and bright color with natural material furnishings. Each architectural design expression of 4 themes was suggested.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.10 no.3
• /
• pp.251-259
• /
• 1998

Environmental control facilities are used to simulate an environment or combination of environments under which many kinds of research and tests can be performed. The design of the control system to maintain desired environmental conditions is essential to proper operation of the facility. A simulation model of the facility has been developed by analyzing each component of the system thermodynamically with necessary properties and heat transfer relations. Using the system simulation model, the required characteristics of the control system has been investigated. PI controller is considered as the most probable controller for this kind of the facility, and electric heater power is shown as the Proper manipulated variable for temperature control.

• International Journal of Air-Conditioning and Refrigeration
• /
• v.8 no.1
• /
• pp.62-72
• /
• 2000

Environmental control facilities are used to simulate an environment or combination of environments under which many kinds of research and tests can be performed. The design of the control system to maintain desired environmental conditions is essential to proper operation of the facility. A simulation model of the facility has been developed by analyzing each component of the system thermodynamically. with necessary properties and heat transfer relations. Using the system simulation model, the required characteristics of the control system has been investigated. PI controller is considered as the most probable controller for this kind of the facility, and electric heater power is shown as the proper manipulated variable for temperature control.