• Journal of Electrical Engineering and Technology
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• v.5 no.2
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• pp.307-318
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• 2010

In this work, an accurate analysis of low frequency current ripple in residential fuel cell power generation systems is performed based on the proposed residential load model and its unique operation algorithm. Rather than using a constant dc voltage source, a proton exchange membrane fuel cell (PEMFC) model is implemented in this research so that a system-level analysis considering the fuel cell stack, power conditioning system (PCS), and the actual load is possible. Using the attained results, a comparative study regarding the discrepancies of low frequency current ripple between a simple resistor load and a realistic residential load is performed. The data indicate that the low frequency current ripple of the proposed residential load model is increased by more than a factor of two when compared to the low frequency current ripple of a simple resistor load under identical conditions. Theoretical analysis, simulation data, and experimental results are provided, along with a model of the load usage pattern of low frequency current ripples.

• International conference on construction engineering and project management
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• 2022.06a
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• pp.1254-1254
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• 2022

The Multi-family Residential is one of the most famous building types for a rental property in the US. Often times it includes multiple residential buildings and some amenity facilities, including a clubhouse or leasing office, swimming pool, dog park, and garages. Since the building type is built for rental purposes, the construction planning is phased and it makes the project complicated. Detailed planning and execution are important for successful construction management. This paper provides some management practices that are applied to one of the multi-family residential construction projects in Phoenix, AZ. The Front End Planning (FEP) process performed by both owner and contractor is the first key to a successful construction project. Specifically, the early review of phased turnover strategy, grading, fire/Americans with Disabilities Act (ADA) compliance, and Mechanical/ Electricity/Plumbing/Technology (MEPT) will provide absolute benefit to the project. Second, using a scheduling method to control short-term schedules and long-term can provide the ability to manage the issues with agility. Third, material delivery and procurement dominate the both project schedule and cost. With this COVID-19 circumstance, it is hard to expect the material, equipment, and labor forces to be delivered on time with the contracted price. Managing floats are more than important to managing construction productivity. Risk management should work to share the risks fairly. Lastly, turnover is directly linked with the profit of the project for both owner and contractor. The communication between the owner and contractor to re-schedule the proper turnover schedule is important for the phased construction project.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.10 no.4
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• pp.268-278
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• 2017

The purpose of this research was to analyze the effect of psychological characteristics on job performances of workers at residential homes for the disabled. For the study, a survey was conducted on 170 workers at residential homes for the disabled in Gyeongsangbuk-do (Sangjoo-si, Andong-si and Yecheon-gun) from the 7th of October to 11th of November, 2016. For the analysis, SPSS WIN 18.0 and Amos 21.0 programs were used to conduct t-test, one-way analysis of variance, correlation analysis and multiple regression analysis at a significance level of 5%. The research results were as follows. First, it was found that the psychological characteristics of workers at residential homes for the disabled vary significantly upon their work loads. Second, the differences in job performances of workers at the residential homes for the disabled with their general characteristics were analyzed: it was revealed that the job performance of the workers varies significantly with their education levels, positions and monthly incomes. Third, the job performance of workers at the residential homes for the disabled was found to be having positive correlation with their psychological characteristics as follows: self-esteem (r=.363, p<.001) and self-efficacy (r=.275, p<.001), while having negative correlation with depression (r=-.267, p<.001). This paper is required to be used as a primary source for political development on the enhancement of the psychological characteristics of workers at residential homes for the disabled.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.11a
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• pp.284-289
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• 2008

The purpose of this study is to examine the consciousness of residents and managers in multi-family housing management. Research methods used in this study were survey, field study. The parts of evaluation tool are composed of maintenance, operating management, residential life management. The evaluation tool of questionnaire got contents through documents research. This study indicates; first, residents' evaluation about the degree of satisfaction was totally lower than its importance. Specially, perception on residential life management was lowest. Second, it seems that managers assume indifferent attitude toward management works. It was caused by low pay, inferior work environment, and residents' exceeding interferences. In future, such efforts as residents participation, improvements of managerial work environment are required for the housing management efficiency.

• Journal of Korean Society of Rural Planning
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• v.20 no.2
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• pp.57-69
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• 2014

Village community centers are public locations where residential members of communities gather for various group meetings, social support, public information and recreational activities. Since the residents voluntarily operate the facilities, a convenient access to the center is a very important criterion for choosing where such facilities should be distributed throughout the districts. In particular, it is highly desirable to locate them within walking-distances from the residential populations. In this work, we have evaluated the accessibility to the community centers in several rural areas based on the surveys that were collected from year 2005 to 2012. We used the collected rural amenity resource distributions of the area for the evaluating the accessibilities to village center. More specifically, we considered some factors such as residential district and fraction of elderly population in the vicinity.

• Journal of the Korean housing association
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• v.15 no.2
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• pp.63-73
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• 2004

Louis I. Kahn's spacial composition is characterized by traditional motives and Ecole des Beaux which had influenced him. This influence had showed five forms about Kahn's spacial composition. His constituent factors in geometrical form are classified into the propositional system, the cellular multiplication of a special unit, the Poche Space and others. According to the results of this study obtained from above mentioned subjects, it can be concluded that geometrical factors, which constitute space of plan, are totally expressed as a system of order which unites particular ones into whole one. This characteristic had developed into a completed meaning for passing through the residential architecture in 1950's, and showed in the other artworks there after.

• Preventive Nutrition and Food Science
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• v.9 no.4
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• pp.389-396
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• 2004

With the increase of elderly people, educators have begun designing experiences to prepare students to work with elderly group. The purpose of this study is to evaluate the knowledge and attitude of students majoring in food and nutrition for the elderly and their intentions to provide services for the elderly. The knowledge level of the students was in a medium range, and no relationship was found between knowledge and attitudes using Pearson correlation. The knowledge did not significantly differ across gender and academic level when compared using t-test and ANOVA, but knowledge level was significantly different based on residential experiences with elderly over 65 years of age (p < 0.05). Students had neutral attitudes toward working with elderly employees and working for elderly. Students had positive intentions to work with elderly employees, seek employment in an organization for elderly clients/customers, and seek opportunities for positive social interaction with the elderly. However, students do not have positive work preference with elderly employees. As a result of multiple regression analysis, it was found that knowledge was not a predictor of intentions to provide services to the elderly. However, attitudes toward working with elderly employees, attitudes toward elderly, residential experiences with elderly > 65 years have been predicted the intentions to work with elderly employees. Attitudes working with elderly employees and attitudes toward elderly influenced the intentions to work in the organizations to provide services to elderly. This study can be identified the need for additional didactic preparation and experiences to prepare students to work with elder aging population.

• Journal of the Korean housing association
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• v.4 no.1
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• pp.47-55
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• 1993

The research was carried out by posing a questionnaire, making middle and high schoolstudents 549 in Taehu an object of this research, in order to grasp the residential outlook of juveniles.1. The first order of reason why they have resided in present their houses was by a school group and their parents' choice and work place and second order of reason was by their parents' choice, life convenience in present house add traffice convenience And there was littledifference in the first and second residential reasons according to sew.2. In compareson with past and present house type, past and present house type shewed same tendency and future wanted house type was separate house absolutely.3. Points to be considered in selectong future were in the order of facilities, traffice,, surrounding, educational, social and economical circumstances. There was little difference in almost items to be considered in choosing accordant to sew. But in case of schoolgirls, they consisered more items in selecting houses than in schoolboys.4. As a result of researching ideal house of juvenile, happy family was most Preferred and the desire to possess house was expressed strongly.5. The first value on house was health of family, the stability, the stabi]ity and the residential convenience. And schoolboys attacged more importance to the gealth of family, ghe stability and the education fer children than in case of school-girls but on the other hand school girls attached more importance to economical value house and happy and harmonious family.

• Fire Science and Engineering
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• v.25 no.6
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• pp.58-63
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• 2011

This study is intended to present a computational thermal model for the combustibles in a residential building. As the Performance Based Design is more popular, fire-intensity and fire-load have turned out to be very important factors for building design and can be predicted through some computational work. To predict and estimate the thermal properties of the residential combustible fire, we made some numerical models of combustibles in a residential building. In a bid to validate the estimate values, computational analysis results from numerical models were compared with real fire tests. For computational analysis, the Fire Dynamics Simulator was used with Large Eddy Simulation model for turbulence. Consequently, each heat release rate and total heat release curves were successfully estimated.

• The Journal of the Korea Contents Association
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• v.16 no.3
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• pp.771-781
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• 2016

This purpose of this study is to identify and conceptualize difficulty of abstract experiencing human rights process conducted in caretaker workers of the disabled residential facilities by utilizing multidimensional scaling. Focused on the caretaker workers of the disabled residential facilities in Busan, gathering a declarative sentence from caretaker workers, have classified index card. According to the results of the analysis, be reached name of six cluster. In facilities, caretaker workers was recognized Communication of the conflict between those People with intellectual disabilities, intention of service provider is not taken into account, those people emphasis to show up for caretaker workers, conflict based subjective human rights awareness of those People with intellectual disabilities. External facilities, interest in human rights is increasing becoming of pollution have difficulty to work hard time gaps between practice of human rights management and on-the-job experience, the rigidity of human rights investigation and inspection, lack of consideration for the caretaker workers. Based on this result, this study suggested a number of practical implications which can be used to reduce difficulty of human rights process conducted in the caretaker workers of the disabled residential facilities.