In this study, the effects of some additives to the quality of fish jelly product such as salt tripolyphosphate and starch were examined. Besides, that of washing and stepwise heating procedure were also discussed. From the result of quality test by measuring jelly strength and sensory evaluation the product was quite palatable 19 common, and the addition of 3 percent of salt and 5 percent of starch resulted in the best jelly strength. It was markedly enforced when 0.3 percent of tripolyphosphate was added. The suggestible processing method of hagfish jelly product is as follows : The meat is to be bleached by washing at least 6 times with tenfold tap water by volume of meat at $5-6^{\circ}C$ and then ground throughly with addition of 3 percent of salt, 5 percent of starch and 0.3 percent of tripolyphosphate. The ground meat is finally to be heated for 1 hour at 45 to $50^{\circ}C$ and then for 30 minutes at $90^{\circ}C$.
Since the Framework Act on Resource Circulation was enacted in 2018, the government should establish a National Resource Circulation Master Plan every 10 years, which defines mid- to long-term policy goals and directions on the efficient use of resources, prevention of waste generation and recycling of waste. In addition, we must set mid- to long-term and stepwise targets for the final disposal rate, recycling rate (based on sorted recyclable materials and recycled products), and energy recovery rate of wastes, and relevant measures should be taken to achieve these targets. However, the current industrial waste (IW) statistics have limitations in setting these targets because the final disposal rate and recycling rate are calculated as the ratio of the recycling facility input to the IW generation. In this study, the material flow from the collection stage to the final disposal of industrial waste was analyzed based on the generation of 2016, and the actual recycling amount, actual incineration amount, final disposal amount and their rates were calculated. The effect on the recycling, incineration and final disposal rates was examined by changing the treatment method of nonhazardous wastes from the factory and construction and demolition wastes, which were put in landfills in 2016. In addition, the variation of the waste treatment charge was investigated according to the change of treatment methods. The results of this study are expected to be effectively used to establish the National Resource Circulation Master Plan and industrial waste management policy in the future in South Korea.
Kim, Ji-Young;Kim, Tae-Woo;Nahm, Dong-Seok;Chang, Young-Il
The korean journal of orthodontics
/
v.33
no.6
s.101
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pp.407-418
/
2003
The purpose of this study is to analyze dentoalveolar compensation in normal occlusion samples previously classified into 9 skeletal types, and to provide clinically applicable diagnostic criteria for individual malocclusion patients. Cephalometric measurements of the 294 normal occlusion samples previously divided into 9 types were analyzed. The descriptive features of dentoalveolar variables were compared for the 9 types using analysis of variance, followed by post hoc multiple comparisons. In addition, the correlation between skeletal and dentoalveolar variables were analyzed. Discriminant analysis with a stepwise entry of variables was designed to find out several potential variables for use in skeletal typing. The dentoalveolar compensation pattern of the skeletal types varied, especially with regards to the variables that indicated the inclination of incisors and the occlusal plane. Stepwise variable selection identified four variables: AB-MP, SN-AB, PMA and ANB. Discriminant analysis assigned a classification accuracy of $87.8\%$ to the predictive model. On the basis of these results, this study could provide rudimentary information for the development of diagnostic criteria and treatment guidelines for individual skeletal types.
There is an increasing concern over arsenic (As) contamination in rice. This study was conducted to develope a prediction model for As uptake by rice based on the physico-chemical properties of soil. Soil and brown rice samples were collected from 46 sites in paddy fields near three different areas of closed mines and industrial complexes. Total As concentration, soil pH, Al oxide, available phosphorus (avail-P), organic matter (OM) content, and clay content in the soil samples were determined. Also, 1.0 N HCl, 1.0 M $NH_4NO_3$, 0.01 M $Ca(NO_3)_2$, and Mehlich 3 extractable-As in the soils were measured as phytoavailable As concentration in soil. Total As concentration in brown rice samples was also determined. Relationships among As concentrations in brown rice, total As concentrations in soils, and selected soil properties were as follows: As concentration in brown rice was negatively correlated with soil pH value, where as it was positively correlated with Al oxide concentration, avail-P concentration, and OM content in soil. In addition, the concentration of As in brown rice was statistically correlated only with 1.0 N HCl-extractable As in soil. Also, using multiple stepwise regression analysis, a modelling equation was created to predict As concentration in brown rice as affected by selected soil properties including soil As concentration. Prediction of As uptake by rice was delineated by the model [As in brown rice = 0.352 + $0.00109^*$ HCl extractable As in soil + $0.00002^*$ Al oxide + $0.0097^*$ OM + $0.00061^*$ avail-P - $0.0332^*$ soil pH] ($R=0.714^{***}$). The concentrations of As in brown rice estimated by the modelling equation were statistically acceptable because normalized mean error (NME) and normalized root mean square error (NRMSE) values were -0.055 and 0.2229, respectively, when compared with measured As concentration in the plant.
Journal of the Korea Academia-Industrial cooperation Society
/
v.19
no.10
/
pp.569-577
/
2018
This study was conducted to determine the effects of middle-aged women's social support and self-efficacy on their aging anxiety, with the ultimate goal of providing basic information for devising educational and interventive programs to help reduce aging anxiety. Participants of this study were 210 middle-aged women living in B Metropolitan City. Data were collected from May 10 to 28, 2018, and statistically processed using t-tests, ANOVA, Pearson's correlation coefficient and stepwise multiple regression analysis. Participants showed significant differences in aging anxiety depending on age, education, monthly income, marital life satisfaction, leisure time activities, and number of friends. In addition, aging anxiety had significant negative correlations with social support and self-efficacy, and the main factors affecting middle-aged women's aging anxiety were found to be self-efficacy, marital satisfaction and social support. Of these, self-efficacy had the greatest effect, explaining 42.7% of the participants' aging anxiety. To help middle-aged women reduce their aging anxiety, it is necessary to provide them with programs that improve social activity participation, raise self-efficacy and promote relationships with family and communities. It is also recommended that these women be provided with educational and interventive programs that help them adjust to aging and develop a positive awareness of it.
Journal of the Korea Academia-Industrial cooperation Society
/
v.19
no.1
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pp.456-465
/
2018
This study was conducted to investigate the relationships among self-efficacy, family support, and self-care performance of gastric cancer surgery patients. The study was conducted from 11 October to 15 November 2013. Data were collected by self-report questionnaires from 121 patients who were diagnosed with stomach cancer and had undergone surgery at D university hospital in B city and were in follow-up care for 3 months to 5 years after surgery. Data were analyzed using SPSS/PC WIN 18.0 to obtain the percentage, average, mean rating, and standard deviation. In addition, t-test, ANOVA, Scheffe's test, Pearson's correlation and stepwise multiple regression were conducted. The degree of self-care performance in research targets showed significant differences by sex (t=-2.25, p=0.027), religion (F=3.67, p=0.028) and profession (F=4.17, p=0.008). Self-care performance was positively correlated (r=0.60, p<0.001) with the degree of specific self-efficacy. There was a significant difference in self-care performance by specific self-efficacy, religion and gender. The total explanatory power was 37.9% and the explanatory power of the degree of specific self-efficacy (${\beta}=0.53$) was greater than that of other factors. Therefore, it is necessary to provide interventions that improve specific self-efficacy to help patients with gastric cancer patients conduct self-care performance, and practical measures should be made with respect to religion and gender.
Journal of the Korea Academia-Industrial cooperation Society
/
v.18
no.3
/
pp.94-104
/
2017
This study was conducted to identify the influence of clinical practice stress and the stress coping type on the self-leadership of nursing students. The subjects were 122 nursing students in B city and the data were collected from May 6 to May 13, 2015. The data were analyzed by means of the t-test, ANOVA, Scheff's test, Pearson's correlation coefficients and Stepwise multiple regression. Significant differences were found in the self-leadership by health status (p<.001), interpersonal relationships (p=.001), satisfaction with nursing major (p<.001) and satisfaction with clinical practice (p=.002). Self-leadership was negatively related to clinical practice stress (p=.028) and positively related to stress coping style (p<.001). The meaningful variables which influenced self-leadership were the health status, stress coping type and satisfaction with nursing major. The total explanatory power was 28.1% and the health status was the most influential factor. Therefore, in order to enhance the self-leadership of nursing students, it is necessary for them to maintain a good health condition and to have an effective stress coping type. In addition, methods are needed to increase the satisfaction of nursing major students.
Unlike traditional environmental problems, current environmental problems occur due to by complex reasons. These complexities highlight the importance of precise spatial based analysis and expeditive use of environmental information when an environmental problem arises. However, the traditional environmental information has many problems because they are mainly numerical based and scattered in various systems. To overcome these problems, providing integrated environmental spatial information is important. Thus, a research was conducted on establishing national environment atlas system and its implications for policies. Firstly, this study selects 275 out of 2,701 materials and information from Ministry of Environment and related organizations. Secondly, total 64 thematic maps specific business support are Produced to support establishment and implementation of environmental policies. In addition, the produced thematic maps are privatized. Thirdly, the study analyzes total 17 systems and environmental thematic maps of Ministry of Environment and relevant organizations to connect the information on the business support thematic maps. As a result, 1,314 applicable spatial information and 39,331 applicable database based on spatial information based are selected, and a standardization plan is established. Fourthly, the study suggests a stepwise implementation plan for developing a national environment atlas system. The development of national environment atlas system will help establishing an environmental policy based on more relevant and accurale information.
The changes in volatiles of the model system were analyzed by GC and GC-MS before and after retorting. The GC data were analyzed statistically by applying the analysis of variance, and 42 peaks were selected at 5% significance level. Multivariate statistical analysis was performed with these 42 peaks as independent variables. Through the stepwise discriminant analysis, 8 peaks, which corresponded to the compounds such as 2-heptanone, cis-3-hexenal, 2-pentyl-furan, 1-methyl-trans-1,2-cyclohexanediol, 2-hexanone, 3-octanone, trans, trans-nona-2,4-dienal and 1-octen-3-ol, were obtained in sequence to distinguish the samples with and without retorting. The principal component analysis of a set of 8 independent variables resulted in 3 principal components which accounted for 96.1% of the variance, while the first principal component (PC 1) explained 76.5% of the total variance. In addition, through the factor analysis of the principal components, the peaks 11, 20 and 21 could be grouped togather in accordance with the direction and the size while the peaks 9, 33 and 39 constituted the second group in the direction.
Park, Hyun-Su;Kim, Byeong-Su;Lee, Eo-Ryeong;Park, Seong-Wan
Journal of the Korean Geotechnical Society
/
v.35
no.9
/
pp.5-13
/
2019
The soil-water characteristic curve (SWCC) plays an important role in determining the soil suction parameters required to predict the seepage or shear behaviors of unsaturated soils. In addition, path dependency of the SWCC affects the mechanical and hydrologic behaviors. In general, there is a disadvantage that it takes a long time to measure both the drying and wetting paths of the SWCC by a stepwise pressurization method. Thus, the continuous pressurization method as an improved testing method for the SWCC was suggested, and the testing time for two paths of the SWCC was significantly shorter than the conventional methods. For the applicability evaluation of this method, the results of the SWCC obtained by the stepwise pressurization method and the evaporation method in this study were compared to the result obtained from this method. As a result, it was found that the difference among three methods was negligible, and the testing time of the continuous pressurization method was greatly decreased. Therefore, it can be said that it is possible to quickly and accurately measure the SWCC under various conditions by the continuous pressurization method.
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