• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.10
• /
• pp.5059-5068
• /
• 2013

The purpose of this study was to learn the impact of creative action and locus of control on the self-leadership among RN-BSN students. 135 RN-BSN students participated after being told the research information. The results were as follows: first, mean of locus of control was 1.42, creative action was 3.26, and self-leadership was 3.63. Second, the differences according to general characteristics for the variable of locus of control, workers at hospitals were higher than non workers. For creative action, and self-leadership, those over age 30 and charge nurses rated higher than those below 20 and staff nurses. The last, locus of control and creative action had influence on the self-leadership. The conclusion was that if each nursing organization wants to improve its nurses' self leadership, it must consider nurses' locus of control, and creative action.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.11
• /
• pp.248-255
• /
• 2016

The amount and diversity of information is increasing, as is the information integration connecting data among the related institutions. In the defense field, DTAQ, which is in charge of the quality of military supplies, is attempting to collect and analyze the information which is related with it. In addition, the object of information integration is to expand civil data as well as defense data. There are many ways to integrate data in various environments. In the defense field, which needs enhanced security, it is necessary to establish and apply the information integration methods which are enhanced with more security. In this study, the framework and architecture of information integration was designed by considering task requirements and security conditions. As a result of example application of this framework for information systems to the selected 4 institutions, it was confirmed that the task can be performed through data connections. From the study result, integration architecture which can be applied securely in defense field was suggested. The data accumulated by using this framework with strengthened security are expected to be utilized for the quality improvement of military supplies.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.11
• /
• pp.491-506
• /
• 2016

The purpose of this descriptive survey study was to explore the effects of emotional labor on professional quality of life of emergency department nurses and to elucidate any mediating effects of emotional dissonance between emotional labor and professional quality of life. A total of 227 nurses, including general, charge, and head nurses, who have worked in an emergency department at university hospitals, general hospitals, and junior general hospitals located in Gyeongnam, Daegu and Gyeongbuk areas over a period of 6 months. Data were collected between December 12 and December 29 of 2015. We analyzed the data with descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and three-step mediated regression analysis using SPSS/WIN 21.0 program. The average scores of emotional labor, compassion satisfaction, compassion fatigue, burnout, and emotional dissonance were 4.50 out of 7.00, 31.62 out of 50.00, 29.48 out of 50.00, 29.27 out of 50.00, and 5.02 out of 7.00, respectively. Emotional labor had significant effects on compassion fatigue and burnout, showing explanatory power of 12% and 29%, respectively. Emotional dissonance had partial mediating effects in the relationship between emotional labor and compassion fatigue and complete mediating effects in the relationship between emotional labor and burnout. In summary, to improve the professional quality of life of nurses, it is necessary to develop effective strategies to minimize their emotional labor and emotional dissonance.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.17 no.12
• /
• pp.253-261
• /
• 2016

This study discusses the effective management of mixed-ages classes in kindergarten. For the study, 300 kindergarten teachers in charge of mixed classes for regular courses completed a self-reported questionnaire through a web survey. The data were analyzed by chi-square test and presented by frequency and percentage. Mixed-ages classes had relatively fewer children than one-age classes and they were prevalent in public kindergartens and rural areas. The results were as follows. First, mixed-ages classes were induced by the small number of young children. Second, teachers managed their classes with difficulty due to the lack of supporting staff and few chances for additional teaching training. Third, teachers needed supporting human resources for their teaching and administration assistances. About 23.0% of kindergartens received assistance such as additional training, financial assistance, and consulting supervision from related institutions. The study results suggested the challenges in regulations of age ratio in mixed-ages class, additional teaching training for teachers in mixed-ages classes and replacement of mixed-ages class to same age class as the long-term plan.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.18 no.5
• /
• pp.22-28
• /
• 2017

The performance of lithium ion batteries used in electric vehicles (EV) varies greatly depending on the battery temperature. In this paper, the finite difference method was used to evaluate the temperature change, state of charge (SOC), internal resistance, and voltage change of the battery due to heat generation in the battery. The simulation model was linked with AMESim to calculate the driving range of an EV traveling in New European Driving Cycle (NEDC) mode. As the temperature dropped below $25^{\circ}C$, the internal resistance of the battery increased, which increased the amount of heat generated and decreased the driving range of EV. At battery temperatures above $25^{\circ}C$, the driving range was also decreased due to reduced SOC that deteriorated the battery performance. The battery showed optimal performance and the driving range was maximized at $25^{\circ}C$. When battery temperatures of $-20^{\circ}C$ and $45^{\circ}C$, the driving range of EV decreased by 33% and 1.8%, respectively. Maintaining the optimum battery temperature requires heating the battery at low temperature and cooling it down at high temperature through efficient battery thermal management. Approximately 500 W of heat should be supplied to the battery when the ambient temperature is $-20^{\circ}C$, while 250 W of heat should be removed for the battery to be maintained at $25^{\circ}C$.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.18 no.5
• /
• pp.723-737
• /
• 2017

In order to decide the national technical standards policy for national policy/market economy activities, the people in charge commonly make policy decisions based on the current technology level/concentration/utilization by means of major common technology field analysis using patent data. One possible source of such patent data is the domestic mobile carriers through the Korea Intellectual Property Rights Information System (KIPRIS) of the Korean Intellectual Property Office (KIPO). Using this system, we collected 20,294 patents and 152 International Patent Classification (IPC) types and confirmed KTs (9,738 cases / 47.98%), which perform relatively high technology retention activities compared to other mobile carriers through the KIPRIS of KIPO. Based on these data, we performed three analyses (SNA, PCA, ARIMA) and extracted 30 IPC types from the SNA and 4 IPC types from the PCA. Based on the above analysis results, we confirmed that 4 IPC (H04W, H04B, G06Q, H04L) types are the major common technology field of the domestic mobile carriers. Finally, the number of 4 IPC (H04W, H04B, G06Q, H04L) forecast averages of the ARIMA forecast result is lower than the number of existing time series patent data averages.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.6
• /
• pp.37-45
• /
• 2018

An electric vehicle is an environmentally friendly vehicle because there is no exhaust gas, unlike gasoline automobiles. On the other hand, because the electric vehicle is driven by electric power charged in batteries, the distance to go through a single charge depends on the energy density of the batteries. Therefore, a lithium-ion battery with a high energy density is a good candidate for batteries in electric vehicles. Because the electrode is an essential component that governs the efficiency of a lithium-ion battery, the electrode manufacturing process plays a vital role in the entire production process of lithium-ion batteries. In particular, the drying process during the electrode manufacturing process is a critical process that has a significant influence on the performance. This paper proposes an innovative process for improving the efficiency and productivity of the drying process in electrode manufacturing and describe the equipment design method and development results. In particular, the design procedure and development method for enhancing the electrode adhesion power, atmospheric pressure superheated steam drying technology, and drying furnace slimming technologies are presented. As a result, high-speed drying technology was developed for battery electrodes through the world's first turbo dryer technology for mass production using open/integrated atmospheric pressure superheated steam. Compared to the conventional drying process, the drying furnace improved the productivity (Dry Lead Time $0.7min{\rightarrow}0.5min$).

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.6
• /
• pp.709-714
• /
• 2018

This study researched the reasons for changing polarity in accordance with junction properties in an interface of semiconductors. The contact properties of semiconductors are related to the effect of the semiconductor's device. Therefore, it is an important factor for understanding the junction characteristics in the semiconductor to increase the efficiency of devices. For generation of various junction properties, carbon-doped silicon oxide (SiOC) was deposited with various argon (Ar) gas flow rates, and the characteristics of the SiOC was varied based on the polarity in accordance with the Ar gas flows. Tin-doped zinc oxide (ZTO) as the conductor was deposited on the SiOC as an insulator to research the conductivity. The properties of the SiOC were determined from the formation of a depletion layer by the ionization reaction with various Ar gas flow rates due to the plasma energy. Schottky contact was good in the condition of the depletion layer, with a high potential barrier between the silicon (Si) wafer and the SiOC. The rate of ionization reactions increased when increasing the Ar gas flow rate, and then the potential barrier of the depletion layer was also increased owing to deficient ions from electron-hole recombination at the junction. The dielectric properties of the depletion layer changed to the properties of an insulator, which is favorable for Schottky contact. When the ZTO was deposited on the SiOC with Schottky contact, the stability of the ZTO was improved by the ionic recombination at the interface between the SiOC and the ZTO. The conductivity of ZTO/SiOC was also increased on SiOC film with ideal Schottky contact, in spite of the decreasing charge carriers. It increases the demand on the Schottky contact to improve the thin semiconductor device, and this study confirmed a high-performance device owing to Schottky contact in a low current system. Finally, the amount of current increased in the device owing to ideal Schottky contact.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.10
• /
• pp.406-414
• /
• 2020

The Farm-Closure Assistance (FCA) program is operated to compensate for lost farm income, to stabilize the management of low-competitive farms, and to enhance competitiveness of target items. The FCA, however, has several problems, such as the balloon effect and fraudulent receipts. Therefore, it is important to examine the operational problems of the FCA, establish improvement plans, and settle the measures. The objectives of this study are to analyze problems and suggest solutions for FCA, reflecting the viewpoints of local government officials who are in charge of actual tasks on the FCA front lines. The study analyzes whether characteristics of government officials lead to differences in setting the maximum amounts and extensions to FCA. Factors influencing the necessity of setting ceilings on FCA were work experience, recognition of agriculture's importance, and the FTA's impact on domestic agriculture, gender, and regions. Factors affecting the extension of FCA were the agency unit, work experience on the FTA, recognition of the effects of FTA direct payments and FCA, and recognition of the subsidy's direction. The results can be employed as a fundamental background that can set the direction for institutional improvement when the government tries to improve FCA.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.9
• /
• pp.291-300
• /
• 2020

The cartridges used for illuminating a desired point or area are virtually limited in tests and evaluations because of limitations, such as noise during launch, the possibility of fires caused by illuminant charge, and the annual testable quantity. Therefore, to solve these problems, a ground fixed test, which replaces the firing test, or an evaluation method to perform limited tests, can be applied more efficiently. In this paper, the results of an 81mm illuminating cartridge, KM series performed in 2019 were analyzed comprehensively to identify the trends in reliability and quality characteristics and to estimate the shelf life. The shelf life was estimated to be at least 10 years based on the time when the lower confidence level reached 80% at a confidence level of 90%. Considering only major defects, the shelf life can be estimated to be approximately 23 years. On the other hand, the shelf life was estimated to be approximately 11 to 15 years and 25 to 28 years according to the effective illuminating time. Finally, an assessment plan of illuminating cartridges for the mortars was also presented as an improvement plan for an assessment method in the future.