Journal of the Korea Academia-Industrial cooperation Society
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v.18
no.9
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pp.236-243
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2017
The purpose of this study is to investigate the relationship between the OKgram and abuse awareness, and between the the characteristics of the major field and abuse awareness of pre-service child care teachers who are taking the (child care) course as part of their university curriculum. Positiveness isclassified into 2 subfactors,self-positiveness and other positiveness, while abuses are classified into 4 sub factors,viz. body, sex, emotion and neglect, in order to investigate and analyze the effectsof each sub factor. Asurvey was carried out for students of the department of Child Care and the department of Social Welfare of the universities in Gyeonggi-do, Gangwon-do and Seoul, during the 5 day period from 8th May to 12th May, 2017. After conducting a frequency analysis, correlation and multiple regression analyses were performed, from which we madethe following conclusions. First, it was found that positiveness influences abuse awareness, and that when other positiveness is higher than self-positiveness, abuse awareness is increased. We also concluded that we should provide more personality programs that enhance others positiveness. Second, the seriousness of abuse level showed an average value of 4.594, which is highly recognized, while the level (required) to recognize the index wasin the order of sexual(4.789), physical(4.587), neglect(4.510), emotional(4.498), with the index of emotion beingthe lowest. This indicatesthe necessity to strengthen the social standard on emotion abuse awareness. Third, in the characteristics of the major field, the respondents answered that their actual work experience of being a pre-service child care teacher was helpful to raise their abuse awareness, and thatchild care practice wasthe most important.Therefore,we concluded that it is necessary to arrange practical courses which increase the chance of obtaining actual work experience and provide child care practice during child care teacher training.
The pyrolytic reaction of 1,1-dichloroethylene($CH_2CCl_2$) has been conducted to investigate thermal decomposition of chlorocarbon and product formation pathways under hydrogen reaction environment. The reactions were studied in a isothermal tubular flow reactor at 1 atm total pressure in the temperature range $650{\sim}900^{\circ}C$ with reaction times of 0.3~2.0 sec. A constant feed molar ratio $CH_2CCl_2:H_2$ of 4:96 was maintained through the whole experiments. Complete decay(99%) of the parent reagent, $CH_2CCl_2$ was observed at temperature near $825^{\circ}C$ with 1 sec. reaction time. The important decay of $CH_2CCl_2$ under hydrogen reaction environment resulted from H atom cyclic chain reaction by abstraction and addition displacement. The highest concentration (28%) of $CH_2CHCl$ as the primary product was observed at temperature $700^{\circ}C$, where up to 46% decay of $CH_2CCl_2$ was occurred. The secondary product, $C_2H_4$ as main product was detected at temperature above $775^{\circ}C$. The one less chlorinated ethylene than parent increase with temperature rise subsequently. The HCl and dechlorinated hydrocarbons such as $C_2H_4$, $C_2H_6$, $CH_4$ and $C_2H_2$ were the main products observed at above $825^{\circ}C$. The important decay of $CH_2CCl_2$ resulted from H atom cyclic chain reaction by abstraction and addition displacement. The important pyrolytic reaction pathways to describe the features of reagent decay and intermediate product distributions, based upon thermochemical and kinetic principles, were suggested.
Mammoplasty is currently increasing not only for cosmetic surgery, but as well as for the recovery after breast cancer surgery. The prostheses inserted into the breasts of women who have undergone mammoplasty, hide the breast substances and it is becoming increasingly difficult to diagnose breast disease, and fear is growing by the concern of the prostheses bursting by the strap. So we want to develop a strap applicable to women with prostheses inserted, to determine the usefulness, and we also want to compare the utility by comparing the total area of the Inner and Outer parts of the breast and Posterior Nipple Line (PNL), after obtaining video by applying the existing strap and the developed strap to phantom of the prostheses inserted patient shape. When the pressure by the developed pressure, the total area increased by 10.09% from CC view to $9,813.797mm^2$, 3.88% from CC-ID view to $7,621.531mm^2$, PNL increased by 3.41% from CC view to $90.916mm^2$, 1.64% from CC-ID view to$75.357mm^2$. And the breast tissue of the thorax side increased 3.53% from CC view to $177.725mm^2$, and 6.57% from CC-ID view to $152.510mm^2$, and we could verify that the prostheses were completely eliminated in the CC-ID images of developed strap, compared with the existing strap.
The sound velocity (compressional wave) and attenuation coefficient in the marine surface sediments in the nearshore areas off the Pohang, Pusan, Yeosu and Kunsan were investigated in terms of the geotechnical properties of the marine surface sediments in the water depth range of 10-50 meters. The marine surface sediments in the study areas are variable, that is, sand to clay. Due to the various four different study area, the sound velocities and attenuation coefficients in the surface sediment facies vary 1,44m/sec to 1,510m/sec in velocity and 0.82dB/m to 3.70dB/m in coefficient respectively. In fact, the sound velocity increases with increasing of density and mean grain sizes of the sediments, and however, with decreasing of porosith. The correlation equations between the sound velocith and geotechnical properties of mean grain size, density, and porosity were expressed as the following: Vp=1512.28406-9.16083(Mz)+0.20795(Mz)$\^$2/, Vp=1876.15527-597.50397(d)+210.48375(d)$\^$2/, Vp=1559.47217-2.09266(n)$\^$2/. where Vp is sound velocity, Mz is mean grain size, d is density, and m is porosity, respectively. However, the relationship between the attenuation and geotechnical properties were different from that of sound velocity and geotchnical properties. Furthermore, the correlation equations between attenuation coefficient and geotechnical properties were expressed as the following: a=1.85217+0.67197(Mz)-0.09035 (Mz)$\^$2/, a=48.87859+58.21721(d)-16.3.143(d)$\^$2/, a=2.06765+0.07215(n)-0.00111(n)$\^$2/, where a is attenuation coefficient. The high attenuation appeared in the silty sand through fine sand facies in sediment and k values in these facies were in the range of 0.86 to 0.89 dB/m/KHz.
Journal of the Korea Academia-Industrial cooperation Society
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v.20
no.11
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pp.510-519
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2019
The aim of this study was to set a defect classification framework and evaluate the defect risks in apartment buildings For this, approximately 15,056 defect items for 133 apartment buildings were examined. As a result of the analysis, the major defect of the RC work was cracks, which were found mainly in public locations. Moreover, the RC work was found to exhibit a high defect risk of water problem and surface appearance, which are highly connected with cracks. Second, the finish work has a high defect risk because it is composed of various work types, and there are many kinds of materials and construction parts involved. Third, the major defects of the waterproof work were incorrect installation and missing tasks, which have high defect risks in the garage. This is because defects that require rework occur mainly in the underground garage. Based on these results, this study proposed countermeasures for defect risk management to be considered in the construction, handover, post-handover, and occupancy phases. These have been set in detail based on the three zones: low frequency high severity (LFHS), low frequency low severity (LFLS), and high frequency low severity (HFLS).
Journal of the Korea Academia-Industrial cooperation Society
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v.21
no.7
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pp.510-516
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2020
This study investigated the characteristics and factors affecting inpatient infants, children, and adolescents who experienced falling, using NHDIS data from 2008 through 2017, The study analyzed data of 116 patients who were under 18 and who experienced injuries (KSCD, S00-S99) by falling (KSCD, W00-W19). Frequency analysis, cross-tabulations, and multiple regression analysis were conducted, using SPSS 23. There were more boys than girls, and most of the falls occurred at the ages of over one to under six years old. Most of the children had respiratory diseases, and most had open wounds or bruises due to falling. Also, most of the falls were related to the bed. In the factor analysis, age (β=.318), the main diagnosis (β=.231), and injury (β=.169) except gender affected falling. This suggests that it is necessary to conduct fall prevention education for children, considering the developmental stage characteristics and age group. It is necessary to screen the risk group such as children with a disease with relatively less restriction of activities or with a hyperactive disorder, and to develop a related manual. Hopefully, the results will be used as the basic data for fall prevention education and creating a fall prevention manual according to the characteristics of children's developmental stage for patients who need hospitalization, their caregivers, and the relevant medical team.
The purposes of the study are to segment the American family restaurant market based on relational benefits and to compare each group's demographics, dining characteristics, relationship quality(consumer identification, switching costs, satisfaction, commitment), and relational outcomes(positive word-of-mouth intentions and share of purchases). 510 responses were collected from American family restaurant customers and analyzed using frequency analysis, EFA, reliability test, cluster analysis, MANOVA, discriminant analysis, chi-square test, and ANOVA. The results of the study found three different types of relational benefits: confidence, special treatment, and social benefits. The results of cluster analysis identified three market segments, namely, high relational benefits consumers, medium relational benefits consumers, and low relational benefits consumers. The three groups were different in terms of age(p<0.05) and level of education(p<0.05). In addition, high relational benefits consumers showed a higher level of relationship frequency(p<0.001), relationship quality(p<0.001), and relational outcomes(p<0.001), followed by medium and low relational benefits consumers. Overall, the results indicated that family restaurants need to deliver excellent relational benefits to customers in order to achieve desired relationship quality and relational outcomes. Managerial implications were provided.
Journal of the Korea Academia-Industrial cooperation Society
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v.21
no.3
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pp.510-521
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2020
The university is attempting educational innovation to cultivate talents required by society. The purpose of this study was to prove the educational effect by applying the PBL to on a fashion theoretical course. The research methods are theatrical research and model development research to guide to utilizing PBL. As a result of this study, the learners' satisfaction with the subject applying PBL was evaluated quite positively. In general, it has been shown to have a very effective effect on improving the learner's problem-solving capability, cooperative learning capability, and self-directed learning capability. In particular, the problem-solving capability is relatively high compared to other factors. The result is consistent with the educational goal of the PBL for improving the learner's problem-solving capability. Perceivable correlation analysis on the relationship between the factors to grasp the educational effect of the PBL revealed the factors with a static correlation. In particular, the problem solving capability and cooperative learning capability developed a significant correlation with self-directed learning capability. This is a testament to their ability to exert greater influence when the competencies that each learner develops are combined.
Journal of the Korea Academia-Industrial cooperation Society
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v.18
no.4
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pp.408-417
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2017
This study was conducted to examine the influence of the nurse staffing level on the level of in-hospital death and infection in cancer patients who received surgery. Secondary data were used and the subjects of this study were 24,510 patients who received surgery for six types of cancer with a high postoperative mortality rate in the first half of 2012 at 260 hospitals. Simple logistic and GEE multiple logistic regression analyses were used. After adjusting for the patient and hospital characteristics, a greater likelihood of dying was found in the nurse staffing level 2-3 group (odds ratio [OR], 1.46; 95% confidence interval [CI], 1.00-2.11) and in the level 6-7 group (OR, 3.28; 95% CI, 1.87-5.74) compared to the level 0-1 group. The likelihood of in-hospital infection increased with each additional bed per nurse, being 6.63 times higher (95% CI, 3.00-14.62) in the level 2-3 group, 5.79 times higher (95% CI, 1.88-17.78) in the level 4-5 group, and 8.4 times higher (95% CI, 1.82-38.84) in the level 6-7 group, as compared to the level 0-1 group. A lower nurse staffing level was associated with higher in-hospital death and infection levels. This shows that an appropriate nurse staffing level is associated with superior postoperative cancer patient outcomes. Policies for providing adequate nurse staffing should be maintained for the sake of ensuring improved care quality and patient safety.
Effects of addition of Chinese chives into frozen noodle on retrogradation of the cooked frozen noodle were examined by enzymatic evaluation during the storage 3 days at $4^{\circ}C$. The retrogradation rate during storage was significantly reduced by addition Chinese chives. Thus we hypothesized that retarogardation and textural changes of frozen noodle might be linked to thermostable amylase in Chinese chives. The amylase isolated from Chinese chives was affected by temperature and pH of buffer used. The enzyme was mainly extracted 20 mM potassium phosphate buffer(pH 7.0). The enzyme was extremly stable at wide temerature and pH. Amylase activity was maximal at $50^{\circ}C$ and pH 7.5. The enzyme was not inactivated by heat treatment at $70^{\circ}C$, $80^{\circ}C$ for 30 min. We suggest the enzyme was stable at high temperature. To investigate the effect of different storage packge on texture properties, color, sensory evaluation, parent-packged and unparent packaged frozen noodle was compared with control. As the storage passed, the frozen noodle packaged with parent showed a rapid decrease in the color. The hardness was gradually decreased during storage. It was found that unparent packged must be nessasry in the Chinese chives frozen noodle. In changes of sensory properties by traind panel, Chinese chives frozen noodle with 2% blanched Chinese chives got the highest score in overall acceptability, therefore we tried acceptance test by consumers with 2% blanched frozen Chinese chives noodle.
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