• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.9
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• pp.519-527
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• 2017

The purpose of this study is to take a closer look at the child-rearing experiences of a two married individuals who were both raised in a child care institution after they had been separated from their parents. Data was collected from a husband and wife who had grown up together in the same child care institution, and in-depth interviews were conducted on them. The research method was analyzed by a qualitative case study. According to the results, the following main themes were extracted from the experiences of the child-rearing couple : 'A family made to escape loneliness', 'Childbirth that started without preparation and fell into the swamp of child rearing', 'Faced reality, regret, and reflection', and 'Finally regaining strength because of the responsibility to be a parent'. The couple married with vague fantasies and without any preparation to escape from the terrible loneliness. Like the marriage, the couple subsequently did not have a specific plan for childbirth. Later, it proved difficult to raise children who did not receive enough information or education, and the couple became exhausted. After the child entered the day care center, the couple experienced a sense of regret and was forced to reflect as they faced a child who resembled their negative appearance. The couple also reported that they felt deeply responsible for their parents even though they did not grow up with any form of parental care. Based on these findings, this study suggested a social welfare intervention plan which could have helped the married couple grow up in the child care institution.

• Information Systems Review
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• v.23 no.3
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• pp.127-158
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• 2021

Many online travel agencies (OTAs) provide average ratings and time-relevant information or the most recently posted reviews regarding hotels to satisfy customers. To identify these two factors' relative influence on behavioral decision-making processes, we conducted two studies: (1) an experimental research design to explore the relative influence of the two on online review consumption and (2) an empirical approach to examine their relative impact on online review generation. The results show that when review posters observe an inconsistency between average ratings and recent reviews, they tend to deviate from the recent reviews regardless of the overall direction (reactance behavior). Meanwhile, review consumers tend to conform to the opinions presented in recent reviews (herding behavior). Additionally, in both cases, the effects are amplified in case of a negative aberration. Based on the findings, this study provides theoretical and practical implications regarding the relative influences of average rating and recently posted reviews and their different impacts on online review consumption and generation.

• Journal of the HCI Society of Korea
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• v.8 no.2
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• pp.21-27
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• 2013

Recently, the use of floating hologram has increased in many different aspects, such as exhibitions, education, advertisements, and so on. Especially, the floating hologram that makes use of half-mirror is widely used. Nevertheless, half-mirror, unfortunately, cannot lead users to the perfect three dimensional hologram experience. Even though it can make the vision look to be up on the air, it does not have the capacity to display itself up on the air, which is the ultimate goal of hologram. In addition, it looks inconsistent when a real object is located behind the half-mirror in order to show the convergence of the two (object and the half-mirror). In this paper, we did the study on comparison of 3D space perception for the stereoscopic AR holography. At first, we applied stereoscopic technology to the half-mirror hologram system for the accurate and realistic AR environment. Then, the users can feel as if the real 3D object behind half-mirror and the reflected virtual image are converged much better in the 3D space. Furthermore, by using depth camera, the location and direction of graphics can be controlled to change depending on the user's point of view. This is the effective way to produce augmented stereoscopic images simply and accurately through half-mirror film without any additional devices. What we saw from the user test were applying 3D images and user interaction leads the users to have 3D spatial awareness and realism more effectively and accurately.

• KSBB Journal
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• v.25 no.3
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• pp.277-282
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• 2010

This study was performed to investigate the composition of amino acids and biological properties with the ethanol extract of fruiting bodies of Pleurotus eryngii grown on the sawdust compost mix (400 g sawdust plus 200 g rice bran) supplemented with various dosages of monosodium glutamate (MSG). Amino acid composition analyses showed that arginine, glutamic acid, alanine and glycine increased as the dosage of MSG was increased, whereas histidine, serine, methionine, isoleucine, leucine and phenylalanine did not increase. $\gamma$-Aminobutyric acid (GABA) content increased significantly up to 1.18 mg/g extract when 6 g MSG was supplemented to the sawdust mix. Antioxidant activity of the extract was estimated and compared to the standard antioxidant (ascorbic acid). The antioxidant property such as 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity increased with the extract samples of increasing dosage of MSG. Although the extract showed low levels of nitrite scavenging activity, this activity increased up to 1.5-2.0 fold when MSG was supplemented to the sawdust mix above a dosage of 0.5 g. The results obtained from the present investigation would appear that Pleurotus eryngii grown on the MSG-enriched sawdust mix can be used more effectively as one of potential sources of functional foods.

• Journal of Hospice and Palliative Care
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• v.2 no.2
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• pp.101-108
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• 1999

Purpose : The purpose of this study was to identify hospice volunteers' perception of the death. Methods : This study was conducted with 327 adults who registered for the hospice volunteer education program in Severance Hospice Center from 1996 through 1999. The 4-years data was collected through a self-reporting questionnaire constructed and revised by the authors. The questionnaire was classified into 5 categories. The data collected were analyzed using SPSS/W. Results : 1) Hospice volunteers were mostly female(93.9%) with an average age of 48 years. The majority(82.6%) of the participants were Protestant. 2) From the 4-years data over 90 percent of participants thought of death as a process of life and responded positively to these three items : 'Death is a temporary separation from family', 'I will die in peace', 'Faith in God results in a freedom from fear of death'. 3) Age were statistically relevant to the following items: 'I often read the obituaries in the newspaper', 'Dying is a tragedy', and 6 items were significantly related to religion: 'I rarely think of dying unexpectedly', 'Death is a temporary separation from family'. 'Dying is a tragedy', 'We have to do our best to prolong life by use of modem medical technology', 'I feel comfortable thinking of death and dying, 'Faith in God results in a freedom from fear of death'. The finding that religiosity was related to perception of death is consistent with other reports. And $40{\sim}50$ year old Protestant women had more positive perception of death than $20{\sim}30$ year old women. Conclusion : The findings indicated an importance of considering the age and religiosity when we educate the hospice volunteers. And that will be a important basic-data to develope program for hospice volunteers.

• Transactions of the Korean Society of Automotive Engineers
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• v.20 no.1
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• pp.20-27
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• 2012

The $NH_3$-SCR characteristics of $NO_X$ over a V-based catalyst are experimentally examined over a wide range of operating conditions, i.e., $170-590^{\circ}C$ and $30,000-50,000h^{-1}$, with a simulated diesel exhaust containing $NH_3$, NO, $NO_2$, $O_2$, $H_2O$, and $N_2$. The influences of the space velocity and oxygen concentration on the standard-SCR reaction are analyzed, and it is shown that the low space velocity and high oxygen concentration promote the SCR activity by ammonia. The best $deNO_X$ efficiency is obtained with a $NO_2/NO_X$ ratio of 0.5 because of an enhanced chemical activity induced by the fast-SCR reaction, while at the $NO_2/NO_X$ ratios above 0.5 the $deNO_x$ activity decreases due to the slow-SCR reaction. The oxidation of ammonia begins to take place at about $300^{\circ}C$ and the reaction products, such as $N_2$, NO, $NO_2$, $N_2O$, and $H_2O$, are produced by the undesirable oxidation reactions of ammonia, particularly at high temperatures above $450^{\circ}C$. Also, $NO_2$ decomposes to NO and $O_2$ at temperatures above $240^{\circ}C$. Therefore, $NO_2$ decomposition and ammonia oxidation reactions deteriorate significantly the SCR catalytic activity at high temperatures.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.8
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• pp.211-219
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• 2018

The purpose of this study was to explore degree of multicultural openness, preoccupation, multicultural acceptability, and multicultural efficacy, the factors influencing of multicultural efficacy of nursing students and to provide the basic data to increased multicultural efficacy. This research involved 299 nursing students in B and Y city. Data were collected from May 8, 2017 to 28. Data were analyzed using t-test, ANOVA, Pearson's correlation coefficient, and multiple regression with SPSS/WIN 21.0 program. In results of the study, multiculture efficacy appeared as $3.92{\pm}0.54$. There were significant difference in multicultural efficacy with age, experience of class with multicultural students, experience of other languages class, foreign friends. There were positive correlation between multicultural efficacy and multicultural openness(r=.396, p<.001), between multicultural efficacy and multicultural acceptability(r=.471, p<.001), negative correlation between multicultural efficacy and preoccupation (r=-.464, p<.001). Regression analysis showed 36.1% of variance in nursing students multicultural efficacy can by age, foreign friends, preoccupation, multicultural acceptability. Through this research requires the fellow study to determine the various factors affecting multicultural efficacy of nursing students. And it is necessary to development education and program that can enhance multicultural efficacy is required.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.8
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• pp.312-321
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• 2018

The Korean DR market proposes suppression of peak demand under reliability crisis caused a natural disaster or unexpected power plant accidents as well as saving power plant construction costs and expanding amount of reserve as utility's perspective. End-user is notified a DR event signal DR execution before one hour, and executes DR based on requested amount of load reduction. This paper proposes a DR energy management algorithm that can be scheduled the optimal operations of chiller system and ESS in the next day considering the TOU tariff and DR scheme. In this DR algorithm is divided into two scheduling's; day-ahead operation scheduling with temperature forecasting error and operation rescheduling on DR operation. In day-ahead operation scheduling, the operations of DR resources are scheduled based on the finite number of ambient temperature scenarios, which have been generated based on the historical ambient temperature data. As well as, the uncertainties in DR event including requested amount of load reduction and specified DR duration are also considered as scenarios. Also, operation rescheduling on DR operation day is proposed to ensure thermal comfort and the benefit of a COB owner. The proposed method minimizes the expected energy cost by a mixed integer linear programming (MILP).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.2
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• pp.535-541
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• 2020

FCAW is used mainly in the welding of carbon steel and alloy steel because it can be welded in all positions and can obtain excellent quality at sites with variable working conditions. Recently, many studies in Korea have estimated the fatigue strength, residual stress, and deformation, and to develop a fillet welding process. On the other hand, there have been few studies of the mechanical properties based on the strength, macro and magnetic particle test results for fillet welding. This study shows the following results through fillet welding, macro testing and strength testing using SM490A (solid-structure rolled steel) for thick plates using SS400 (rolled steel) for the upper plate and FCAW. The hardness test, macro test and magnetic particle test were then conducted. The hardness tests showed that all result values were smaller than the KS B 0893 standard values of 350Hv. The macro-test showed that each type of welded part was in a normal organic state and that there were no internal errors, bubbles, or impurities on the front of the welded part. Therefore, there were no concerns about lamination. The magnetic particle examination showed no problems.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.94-103
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• 2016

This study was conducted to investigate the association of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) with all-cause mortality among populations. The data used were from a Korean Genome and Epidemiology Study (KoGES) based on health examinations and questionnaires. The subjects consisted of 10,110 persons aged 40 and over. Hazard ratio was analyzed using Cox's proportional hazard model. The hazard ratio of AST (${\geq}50.0\;IU/L$) was 2.198 (95% CI: 1.217-3.971) after being adjusted for age, sex, education, regular exercise, smoking, drinking, WHR, and TG. In conclusion, AST was an independent significant risk factor of all-cause mortality, and ALT showed a tendency to increase. Overall, these findings indicate that AST and ALT may be useful tools for predicting mortality.