• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2008.06a
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• pp.263-263
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• 2008

This paper describes the electrical strength of a toughened glass stem insulators employed for electric railways. The broken glass stem insulators for comparison were taken at site. According to the international standards, electrical strength tests with 60[Hz] voltage and with impulse voltage were carried out to them under dry and wet condition and the results were corrected by considering the temperature and humidity factors. Based on the experimental results, the electrical strength of broken glass stem insulators was compared with those of sound ones and surface flashover characteristics were also discussed. As a result, it was confirmed that the electrical discharge is formed by bridging each end of the insulator shell. The experimental results are expected to be utilized as data for electrically identifying the failure causes of glass insulators.

• Research in Community and Public Health Nursing
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• v.29 no.2
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• pp.133-142
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• 2018

Purpose: The purpose of this study is to examine and evaluate the effects of auricular acupressure on musculoskeletal pain, depression and sleep of the elderly who are institutionalized in long-term care facilities. Methods: The research was conducted in a non-equivalent control group and non-synchronized design with data collected from October to December, 2016. The subjects were from long-term care facilities for the elderly in D city and divided into an experimental group (24 subjects) and a control group (25 subjects). Results: After the intervention, the experimental group showed significant improvement in degree of musculoskeletal pain on time ($x^2=23.89$, p<.001) and degree of depression on time and group ($x^2=37.42$, p<.001, U=122.0, p<001) and degree of sleep on time ($x^2=33.62$, p<.001). Thus, the suggested hypothesis is partially supported. Conclusion: Auricular acupressure therapy is expected to be a practical and efficient nursing intervention for the elderly institutionalized in long-term care facilities.

• Journal of the Korean Institute of Educational Facilities
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• v.20 no.5
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• pp.27-34
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• 2013

Public outdoor spatial environment and its convenient facilities are playing an important role in providing space for various student activities in university campus. Previous studies have shown that many socio-demographic-economic students' background and motivation have impacted the level of academic achievement. Moreover, research also contended that school facilities at some points also influenced students' academic performance. Thus, the aim of this research was to investigate the relationship between the level of academic achievement and satisfaction of various spatial environment through survey. For that purpose, one university campus was selected and evaluation indexes were categorized into five major components of physical and experimental environment, later supported by factor analysis. Correlation analysis found that extracted factors were significantly interrelated to academic achievement. Further, regression analysis also explored sense of belonging as major predictor of academic achievement. Finally the study suggested that campus plan be approached carefully, because such experimental environment as diverse club activities at outdoor environment is a key element to academic achievement even though rated low scores in satisfaction.

• Journal of Korean Association for Spatial Structures
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• v.16 no.2
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• pp.69-77
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• 2016

The purpose of this study is to present a method that can estimate the height of reaction facilities for large structural experiment through load flow as primary design procedure. The characteristic of the load transmission according to the type of experiment was analyzed to obtain tensile and compressive forces occurring on the reaction facilities. Strong walls that are affected by the bending moment is applied the post-tensioning method, and the strong floor under the control of the tension and compression is designed in accordance with the load flow. And the optimum cross-section of the reaction facilities was obtained by comparing the stresses of the tensile stress and crack the concrete. Through validating elastic analysis, the design results were satisfied a given design conditions.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.4
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• pp.85-95
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• 2007

The variation of hydraulic and hydrologic aspect of urban area according to the strongly seasonal variation of rainfall and the increment of urbanization has caused the runoff variation and increased the flood damage, and thus made a difficulty to manage water resources in urban area. Recently, as a part of efforts to resolve these problems, the facilities for reducing runoff increasing due to urbanization have a tendency to install in our country. In this study, more effective Infiltration-Storage System(ISS) is proposed and its reducing effect is analyzed by hydraulic experimental study. The infiltration characteristics of runoff reduction facilities are examined as varying artificial rainfall and a material of infiltration layers being able to consider the influence of urban development. As a result of comparison of infiltration rate of the upper and lower parts, the infiltration rate in the lower part is larger than that of the upper part. Thus, the ISS is more available than existing runoff reduction facilities. Results obtained in this study can be provided fundamental data for improvement of existing runoff reduction facilities and practical use of ISS.

• Journal of Korean Academic Society of Home Health Care Nursing
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• v.31 no.1
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• pp.77-88
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• 2024

Purpose: This study aimed to develop and assess the impact of an integrated infection control education program on the awareness, attitudes, and performance of infection control among caregivers in long-term care facilities. Methods: Participants were recruited from two long-term care facilities with 25 caregivers in both the experimental group and the control group. This study used non-equivalent control group quasi-experimental pre-post design. The effectiveness of a developed Integrated Infection Control Education Program was evaluated based on infection control awareness, attitudes, and performance. Data were analyzed using SPSS/WIN 28.0 through descriptive statistics, chi-square tests, Fisher's exact tests, and independent t-tests. Results: There was a statistically significant difference in the degree of awareness (t=-5.00, p<.001), attitude (t=-4.91, p<.001), and performance (t=-6.66, p<.001) of infection control between the two groups. Conclusion: Given these results, the integrated infection control education program significantly improved infection control awareness, attitudes, and performance among caregivers in long-term care facilities. This study is noteworthy because it provided comprehensive education on infection control practices to caregivers in environments that are particularly susceptible to infections, especially following COVID-19. This educational program is actively utilized and validated in practice, it would enhance the infection control performance of caregivers, thereby reducing infection rates within facilities, shortening the length of stay for elderly residents in long term care facilities, and contributing to the reduction of healthcare costs.

• Archives of Plastic Surgery
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• v.41 no.3
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• pp.209-212
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• 2014

Microsurgery training in Singapore began in 1980 with the opening of the Experimental Surgical Unit. Since then, the unit has continued to grow and have held microsurgical training courses biannually. The road to becoming a full-fledged reconstructive surgeon requires the mastering of both microvascular as well as flap raising techniques and requires time, patience and good training facilities. In Singapore, over the past 2 decades, we have had the opportunity to develop good training facilities and to refine our surgical education programmes in reconstructive microsurgery. In this article, we share our experience with training in reconstructive microsurgery.

• Journal of the Korea Society for Simulation
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• v.6 no.2
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• pp.71-79
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• 1997

In this paper, operations system was designed for the centralization of data processing of various state information from the facilities of mobile communication network. And the system performance experimental system module was measured and analyzed from the designed experimental system module. The configuration of system design was presented with the centralized type to monite and control the facilities of mobile communication network in the central office. The communication process design of the internal system was implemented with the resource of message queue having a excellent transmission ability for processing of a great quantity of information in the inter-process communication among communication resources of UNIX system. The process with a server function from the internal communication processes was constructed with a single server or a double server according to the quantity of operations and implemented with the policy of the presented server. And then, we have measured performance elements in accordance with the change of input parameters from the designed experimental module : response time, waiting time, buffer length, the maximum quantity existing in message queue. And from these results, we have compared and analyzed the system state each server algorithm according to performance variations.

• Journal of Korean Elementary Science Education
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• v.22 no.2
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• pp.192-199
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• 2003

The Journal of Korean Elementary Science Education has been developed in both quantitative and qualitative aspects during twenty years since first published year 1983. This study was intended to survey the research trend of the journals, which has been published so far. It will give an orientation of science education research and suggestions towards research to improve science education. The 243 articles of the journals, which were published from 1983 to 2002 by Korean Elementary Science Education Society, were classified into 7 categories including science teaching, science learning, assessment in science, science teacher education, science curriculum, educational facilities & materials, and general science education. The results are as follows: 1. The articles published last decade are increased four times compared with the first decade. 2. The half of articles published so far concentrated on science teaching and learning. The articles on educational facilities & materials or general science education are few. 3. During the last decade, the articles on science teacher education, educational facilities & materials, assessment in science, and science learning relatively increased than the first decade. The number of articles on science curriculum was fluctuated every five years. 4. Most of articles were focused on the narrow subject areas. For example, the articles on science teaching, science learning, assessment in science, science teacher education, science curriculum, and educational facilities & materials were largely focused on the teaching strategies, pupils' conception, affective assessment and teaching practice survey, teachers' appreciation about the nature of science or instruction, analysis of science textbooks, development of the experimental materials or the audiovisual aids respectively. 5. The subject areas highlighted so far in science education, for example, inquiry or experimental activities, STS instruction, environmental education, gifted education, instruction with multimedia, problem-solving or reasoning, experimental skill assessment, etc. were not much researched.

• Parasites, Hosts and Diseases
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• v.49 no.3
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• pp.299-302
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• 2011

During experimental Eimeria infections in chickens, facilities are often contaminated by fecal oocysts known to be highly resistant to both chemical and enzymatic treatments. Thus, studies using experimental Eimeria infections have been limited due to the difficulty of complete elimination of residual oocysts from both cages and facilities. To overcome this limitation, simple, inexpensive, and disposable cages were constructed from cardboard boxes and tested during experimental Eimeria maxima infections. The cages were used in animal rooms with only a 1.7% evidence of coccidia contamination between adjacent cages. No significant differences in fecal oocyst output and body weight gain were noted between animals housed in disposable cages and animals housed in wire control cages. This cage design is a useful means for preventing oocyst contamination during experimental conditions, suggesting that this disposable cage design could be used for other avian infectious disease studies.