• Clinical and Experimental Emergency Medicine
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• v.5 no.4
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• pp.249-255
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• 2018

Objective As aging progresses, clinical characteristics of elderly patients in the emergency department (ED) vary by age. We aimed to study differences among elderly patients in the ED by age group. Methods For 2 years, patients aged 65 and older were enrolled in the study and classified into three groups: youngest-old, ages 65 to 74 years; middle-old, 75 to 84 years; and oldest-old, ${\geq}85years$. Participants' sex, reason for ED visit, transfer from another hospital, results of treatment, type of admission, admission department and length of stay were recorded. Results During the study period, a total 64,287 patients visited the ED; 11,236 (17.5%) were aged 65 and older, of whom 14.4% were 85 and older. With increased age, the female ratio (51.5% vs. 54.9% vs. 69.1%, P<0.001), medical causes (79.5% vs. 81.3% vs. 81.7%, P=0.045), and admission rate (35.3% vs. 42.8% vs. 48.5%, P<0.001) increased. Admissions to internal medicine (57.5% vs. 59.3% vs. 64.7%, P<0.001) and orthopedic surgery (8.5% vs. 11.6% vs. 13.8%, P<0.001) also increased. The ratio of admission to intensive care unit showed no statistical significance (P=0.545). Patients over age 85 years had longer stays in the ED (330.9 vs. 378.9 vs. 407.2 minutes, P<0.001), were discharged home less (84.4% vs. 78.9% vs. 71.5%, P<0.001), and died more frequently (6.3% vs. 10.4% vs. 13.0%, P<0.001). Conclusion With increased age, the proportion of female patients and medical causes increased. Rates of admission and death increased with age and older patients had longer ED and hospital stays.

• The KSFM Journal of Fluid Machinery
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• v.16 no.3
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• pp.10-17
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• 2013

The organic Rankine cycle has been widely used to convert the renewable energy such as the solar energy, the geothermal energy, or the waste energy etc., to the electric power. Some previous studies focused to find what kind of refrigerant would be a best working fluid for the organic Rankine cycle. In this study, R245fa was chosen to the working fluid, and the cycle analysis was conducted for the output power of 30kW or less. In addition, properties (temperature, pressure, entropy, and enthalpy etc.) of the working fluid on the cycle were predicted when the turbine output power was controlled by adjusting the mass flowrate. The configuration of the turbine was a radial-type and the supersonic nozzles were applied as the stator. So, the turbine was operated in partial admission. The turbine efficiency and the optimum velocity ratio were considered in the cycle analysis for the low partial admission rate. The computed results show that the system efficiency is affected by the partial admission rate more than the temperature of the evaporator.

• Journal of the Korea Convergence Society
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• v.8 no.2
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• pp.99-112
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• 2017

The purpose of the study is to investigate the convergence comparison of the stress, major satisfaction, career identity, and college adjustment of nursing students according to college admission process and grade. The 349 subjects were studying in the nursing department in the City P. And the data collection was carried out from April 2016 until May 2016. The data analysis was carried out with the frequency, the percentage, the ${\chi}^2$-test, and the ANOVA by using the SPSS 23.0 Program. Regarding the research results, first, there were no significant differences among the entire academic years according to the admission type. Second, regarding all the admission types according to the academic year, there were the significant differences among stress (p=.001), the degree of satisfaction with the major (p<.001), the sense of career path identity (p=.021), and the adaptation to the college life (p<.001). As a result, I propose that, based on these results of the research, as a strategy for reducing the stress and for improving the degree of satisfaction with the major, the sense of career path identity, and the capability to adapt to the college life on the part of the nursing students, a differentiated, customized educational program by type of admission and by academic year should be developed and applied.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.40 no.12
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• pp.106-115
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• 2003

Diverse multimedia services will be deployed at hand on 3G-and-beyond multi-service CDMA systems in order to satisfy different quality of service (QoS) according to traffic types. In order to use appropriate resources efficiently the call admission control (CAC) as a major resource control mechanism needs to be used to take care of efficient utilization of limited resources. In this paper, we propose a QoS-aware CAC (QCAC) that is enabled to provide service fairness and service differentiation in accordance with priority order and that applies the different thresholds in received power considering different QoS requirements such as different bit error rates (BER) when adopting total received power as the ceil load estimation. The proposed QCAC calculates the different thresholds of the different traffic types based on different required BER applies it for admission policy, and can get service fairness and differentiation in terms of call dropping probability as a main performance metric. The QCAC is aware of the QoS requirement per traffic type and allows admission discrimination according to traffic types in order to minimize the probability of QoS violation. Also the CAC needs to consider the resource allocation schemes such as complete sharing (CS), complete partitioning (CP), and priority sharing(PS) in order to provide fairness and service differentiation among traffic types. Among them, PS is closely related with the proposed QCAC having differently calculated threshold per each traffic type according to traffic priority orders.

• The Journal of the Korea Contents Association
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• v.16 no.12
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• pp.124-131
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• 2016

This study was conducted to serve as a basis for education by identifying the correlation of college admission type, college-life satisfaction and academic achievement of radiologic science students. Data were collected from 2 universities and 2 colleges located in Gyeonggi Provice, North Chungcheong Province, North Gyeongsang Province. A total of 371 questionnaires were collected, 363 of which were included in this study. The results showed that there were no differences in academic achievement according to the type of college admission. It could be able to interpret that since department of radiologic science is popular, students with high academic records applies the department of radiologic science and there are less deviation of academic records among students. A correlation analysis of academic achievement showed learning attitude is a statistically valid factor. Learning attitudes can be changed by exposure to the environment. This will require a variety of program development for improving learning attitudes. In addition, academic achievement of radiologic science students is associated with license acquisition. It need to be made together research on determinants and development of learning method to improve the learning attitude.

• Journal of the Korean Society of Propulsion Engineers
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• v.9 no.3
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• pp.10-17
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• 2005

A performance prediction model is developed for partially admitted axial-type turbines. Losses generated within the turbine are classified to the windage loss, expansion loss and mixing loss. The developed loss model is compared with an experimental result. The results predicted with the developed model agree well with the experimental results than those predicted with several other models because this model considers three different kinds of losses. Moreover, this model predicts well the performance even the partial admission is changed. So, this model could be applied to predict the performance of partially admitted axial turbine and it has a high accurate performance.

• Quality Improvement in Health Care
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• v.2 no.1
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• pp.58-67
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• 1995

Background: This paper describes an effort to provide baseline informations for appropriate utilization of emergency room in a tertiary hospital. Methods: Authors have evaluated that the admissions in the emergency room were medically necessary by objective criteria, Appropriateness Evaluation Protocol(AEP), for one month in a tertiary hospital. Data were analysed by chi-square test and multiple logistic regression to exmaine statistical significances at the level of 0.05. Results: The prevalence of inappropriate decisions for admission was found to be 47.8%(154/322). Whether the physician decided the patient to admit or not was affected by type of services, number of departments involved, patients' medical condition, route of visit, and a day of the week visited. Level of appropriateness of admission is significantly related to patients' age, type of services, and a day of the week visited. Conclusion: We found that substantial proportion of admissions through emergency room are medically unnecessary and that non-medical factors are related to physician's for admission decisions and level of appropriateness of admission. This suggests that policy measures be required to relieve the overcrowding problem and to reduce non-emergent utilization of emergency room in a tertiary hospital.

• Journal of The Korean Association For Science Education
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• v.35 no.3
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• pp.343-352
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• 2015

This study is to discover the diverse issues related to Self-Directed Learning Screening (SDLS) and draw implications by analyzing its critical points. Using content analysis and interviews with admission officers, tentative issues were finalized and reviewed by researchers and educators. A Survey was developed based on the 96 issues after having evidence of content validity using the Delphi method. To conduct survey, e-mails were sent to admissions officers in twenty science specialized high schools. They were asked to response to questions about perceptions of critical issues and if there are any issues in their schools. Using mean scores of two factors based on its critical issues and frequencies, a two-dimensional classification table for each type was presented. Four critical issues for each type were discovered. The first type indicates minor issues that include 28 items that were less than the overall mean scores in terms of critical issues and its frequencies. The second type indicates tentative issues that include 29 items that were greater than the mean score in critical issues but less in its frequencies. The third type indicates general issues that include 17 items that were less than the mean score in critical issues but greater in its frequencies. The last type indicates critical issues that include 22 items that were greater than the mean scores in two factors. The discovered results of critical issues and its types in this study can be considered a core part of the screening process in schools, especially, critical issues should play an important role in the process of admission screening planning.

• Korean Journal of Adult Nursing
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• v.29 no.1
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• pp.1-11
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• 2017

Purpose: The purpose of this study was to identify the factors and the relative risk associated with admission of patients with diabetes mellitus (DM). Methods: The sample included one hundred twenty-eight patients with type II DM. Seventy-seven patients who were admitted within six months of a hospitalization to one hospital from the first of February to the 31st of August 2014, were compared with fifty-one patients who regularly attended an outpatient clinic and had no hospitalizations. Results: Hospitalization probabilities among patients who had only diet and exercise or took oral diabetic medication were 0.03 (p=.004) and 0.21 (p=.007) times independently lower than the ones with insulin injection. The risks for hospitalization increases 6.33 times if there is absence of a spouse (p=.027) whereas the presence of a spouse seems to make hospitalization less likely. The risk among the ones having diabetic complications was 5.15 times higher than ones having no recognition of the complications (p=.040). For every one point increase in self-efficacy and every 1 mg/dL increase in high density lipoprotein (HDL) cholesterol, there was a 0.84 (p=.005) and a 0.96 (p=.036) decrease in hospitalization risk, respectively. Conclusion: Nurses should be sensitive to the risk groups of hospital admission among patients with DM including no spouse, insulin injection, diabetic complications, low self-efficacy, and low HDL cholesterol.

• Journal of muscle and joint health
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• v.18 no.1
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• pp.50-62
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• 2011

Purpose: The purpose of this study was to determine the incidence and influencing factors of falls in the institutionalized elderly. Method: A descriptive survey design was used with a convenience sampling of 430 institutionalized elderly. Data were collected using a structured questionnaire. Results: The falls rate after admission in institution was 8.4%. Types of injury after falls were mostly contusion and fracture. Interventions for fall prevention were environmental management and regular evaluation of risk factors for falls. Fall experience was significantly different according to admission periods. Type of falls was significantly different according to state of ADL. Predictors for falls were longer admission periods and dependent state in ADL. Conclusion: Falls is important health related problem in the institutionalized elderly, so effective fall prevention program is needed for their health promotion.