• The Korea Journal of Herbology
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• v.33 no.1
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• pp.27-35
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• 2018

Objectives : Gastrodiae Rhizoma extract (GE) is possess the various bioactive compounds such as gastrodin, vanilyl alcool and p-hydroxybenzyl alcohol. Various processing methods such as steaming have been widely applied to ease ingestion and enhance the therapeutic effects of plant materials including GE in East-Asia area. The aim of this study was to evaluate the dermal bioactive properties of GE. Methods : First, total phenol, total flavonoid, gastrodin and ergothionein contents of GE were measured. In order to evaluate the dermal bioactive properties of steamed GE compared with not-steamed GE, tyrosinase, collagenase and elastase inhibitory activity were tested. Furthermore, the anti-oxidant activity of GE assessed based on DPPH and ABTS radical scavenging assay. Results : In results, total phenol and total flavonoid contents were increased when 9 times steamed compared to not-steamed GE. Also, GE increased gastrodin contents, in proportion to the number of steaming times and ergothioneine content was abolished in the steaming state. The DPPH radical scavenging activity of GE increased by steaming, but the ABTS radical scavenging activity was not related to the steaming process. In addition, the tyrosinase inhibitory activity was increased as the number of steaming times of GE increased. Collagenase was most inhibited by 4 times steamed GE, and elastase was inhibited by 8 times steamed GE. Conclusion : In conclusion, these results suggest that steamed GE extract has the potential as a cosmetic material which possess anti-oxidant and whitening activities than not steamed GE.

• Proceedings of the Korean Society for Information Management Conference
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• 2015.08a
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• pp.135-138
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• 2015

장애인들을 위한 여러 법에서는 비장애인과의 동등한 권리를 보장한다고 주장하고 있고, 이들이 생활하는 데 불편함이 없도록 여러 시설물들을 규정하고 있다. 또한 최근 장애학생들의 대학 진학률이 증가하면서 대학에서도 장애학생을 위한 시설과 서비스를 제공하고 있다. 이 연구에서는 대구 경북 지역의 대학도서관들을 대상으로 장애학생들을 위한 서비스 현황과 그 문제점을 분석하였다.

• Tribology and Lubricants
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• v.30 no.2
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• pp.116-123
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• 2014

The objective of this study is to model and simulate the nonlinear lubrication performance of the sliding part between the piston and cylinder wall in a hydrostatic swash-plate-type axial piston pump. A numerical algorithm is developed that facilitates simultaneous calculation of the rotating body motion and fluid film pressure to observe the fluid film geometry and power loss. It is assumed that solid asperity contact, so-called mixed lubrication in this study, invariably occurs in the swash-plate-type axial piston pump, which produces a higher lateral moment on the pistons than other types of hydrostatic machines. Two comparative mixed lubrication models, rigid and elastic, are used to determine the reaction force and sliding friction. The rigid model does not allow any elastic deformation in the partial lubrication area. The patch shapes, reactive forces, and virtual local elastic deformation in the partial lubrication area are obtained in the elastic contact model using a simple Hertz contact theory. The calculation results show that a higher reaction force and friction loss are obtained in the rigid model, indicating that solid deformation is a significant factor on the lubrication characteristics of the reciprocating piston part.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.6
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• pp.3997-4001
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• 2014

The aim of this study was to suggest site-specific reuse alternatives for closed unsanitary landfills (CULs) scattered in Gyeongbuk Province. The CULs were classified with the factors affecting the site reuse alternative to provide basic data for systematic site reuse. Statistical analysis showed that the site area was the main factor in site classification among the site area, distance to road, and distance to the village. The results proposed a site-specific guide flow to the reuse of the CULs.

• Korean journal of food and cookery science
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• v.26 no.4
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• pp.390-397
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• 2010

Survey data from 654 adults (225 males, 429 females) were analyzed based on frequency, percentage, chi-square test, one-way ANOVA; and Duncan's multiple range test. The main results were based on the preference for chungkukjang_(CKJ) products using a 5-point Likert scale. According to the survey, traditional CKJ products received the highest score_(3.64) according to personal preference among all tested products. The responses to eight questions about CKJ products were also measured using a 5-point Likert scale. The question_ as to whether or not "CKJ has anticancer function" received the highest score_(4.24) while the "CKJ is good for hangover" scored the lowest. Regarding the preference for CKJ products, "good for health" (55.3%) and "unpleasant smell" (72.9%) were the most popular answers, Regarding the intention to eat CKJ food products, CKJ tofu was most often selected. Among the 11 items, CKJ tofu, CKJ steak, CKJ hamburger, CKJ ice cream; and CKJ vegetable salad were highly preferred foods. The percentage of respondents that expected "increasing" prospects for CKJ consumption was 55.2%, most likely because 76.9% of the respondents selected "healthy food". Regarding the reasons for decreasing prospects, 68.9% of the respondents chose "peculiar smell". In the same manner, 53.4% of adults replied that future quality improvement should "improve the smell".

• Korean journal of food and cookery science
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• v.26 no.3
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• pp.229-237
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• 2010

This study was conducted to suggest potential future directions in the effective operations of food safety information on the internet. This study consisted of two sections. The first section was a survey that was performed by 186 dieticians in Daegu and Gyeongbuk area. The second section was the assessment of the quality of food safety information on the internet. 163 web sites that provided food safety information on three major searching engines using the search words 'food safety' and 'HACCP' were investigated. The trained panels evaluated the contents of the web sites using a 3-point scale assessment tool. The data collected data from the questionnaires were statistically analyzed using the SPSS package program (version 14.0). The results of this analysis were as follow. The primary purpose of internet usage by detitians was to search for information (87.2%). In addition, the detitians' satisfaction degree of food safety information on the internet was 3.17 out of 5 points. The operators of web sites that were evaluated by the researchers were business and industries (76.1%), public organizations (15.3%), and individuals (8.8%). The following four items, update of content, offer scientific basis or explanation of content, offer useful information and new informations, should be improved immediately. Among evaluation items, six items were shown to be significantly different according to the operators of web sites. The evaluation scores of web sites that were operated by public organizations were significantly higher than those of web sites operated by individuals or business and industries. In conclusion, regular and consistent qualitative evaluation of web sites is needed to improve the quality of information that is provided via the internet. In addition, web sites that provided information on food safety should be actively operated by public organizations.

• Journal of the Korean Institute of Landscape Architecture
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• v.41 no.3
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• pp.72-82
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• 2013

This study was done for analyzing processes on the planning and opening of chronological urban parks in Daegu City since the 1960s, and for interpreting the social meaning on changes of the urban parks with regards to historical circumstances during that period. In the 1960s, urban parks, which were recognized as one of urban planning facilities, were only designated for creating rather than created, although nationally several laws including urban planning act and park act were newly legislated. Rapid urbanization and increasing population in the 1970s led to create many urban parks. However, the policy for increasing parks had been not successful because of the lack of enough funds. In the 1980s, multi-purpose urban parks including stable area as well as active facilities were created for getting several attractions to urban residents. During this period, urban parks were recognized on an aesthetic perspective through vegetating plans on the city-beautiful movement for hosting consecutive international games. The citizen participation in urban parks and the increasing concern about urban environment were started in the 1990s, and the people living in an urban area were interested in the quantitative expansion and qualified renovation of the urban parks as well. Finally, modernistic urban parks were first introduced in the late period of Chosun Dynasty, however their substantial introduction was done in the 1960s. Through this study, the concept of an urban park as a public resting place for citizen in Daegu was thought to be mostly established in the 1990s as we have investigated on the social meaning derived from the periodical changes of urban parks.

• Journal of Korean society of Dental Hygiene
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• v.22 no.1
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• pp.55-61
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• 2022

Objectives: The aim of this study was to investigate the association between depression, anxiety, and COVID-19 with regard to dental hygienists. Methods: A questionnaire survey on depression and anxiety was conducted on 189 dental hygienists from dental hospitals and clinics in the Daegu-Gyeongbuk area. Results: The overall prevalence of depression was 69.8% and that of anxiety was 53.4%. The aspect of depression was heavily influenced by past experience with COVID-19 related quarantine and contact with a confirmed patient. The prolonged pandemic was observed to have exerted a greater impact on depression and anxiety (p<0.05). Conclusions: Depression and anxiety seem to be related to COVID-19 related factors among dental hygienists. Dental hospitals and clinics should monitor the level of depression and anxiety of dental hygienists who are at an elevated risk of COVID-19.

• Culinary science and hospitality research
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• v.14 no.4
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• pp.119-133
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• 2008

This study researched the effect of initial expenses for food service business and shop characteristics on the motive of starting business through questionnaires(from April to May, 2008). The results are as follows. First, for the hypothesis, 'the motive of starting business depends on its initial expenses', the significance probability of good commercial area was .015 and that of retirement was .020, showing statistically significant difference. F values were 2,889 and 2.734 each, which showed significant difference by 0.001. Second, for the hypothesis, 'the motive of starting business depends on shop characteristics', the significance probability of the accomplishment desire, the future stability and the retirement were .011, .009, and .025 each, showing statistically significant difference. F values were 2,616, 3.034 and 3.177 each, showing significant difference by .001. Lastly, initial expenses for business and shop characteristics showed significant difference according to the demographical variables on the motive of starting business. This study shows the problem of starting business with no extra funds. It is important to reflect the opinions of founders about the commercial building lease protection law for them to concentrate on business. The founders should research for menu and systems and be aware of the tendency of the industry for sure.

• Phonetics and Speech Sciences
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• v.4 no.4
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• pp.155-162
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• 2012

The population of Korea is ageing as the number of elderly people increases due to improvements in health care and diet. Accordingly, it is expected that interest in how to live actively during the years after retirement and how to communicate effectively will increase the demand for voice improvement methods and technology. However, the criteria to evaluate the voice strength and characteristics of the elderly are lacking. In this study, we analyzed the acoustic characteristics of elderly women living in the community according to residential status and mental health status (e.g. depressive mood). Accordingly, we selected women (n=63) above the age of 65 age who were living in the Seoul metropolitan area and Daegu Gyeongbuk. The selected subjects were divided into two groups: a normal speaker group (n=40) and a speaker group comprised of those suffering from depressive mood (n=23). This study analyzed the voice characteristics of subjects based on collected data through the sustained phonation of the vowel /a/. It was shown that there were differences among MPT, F0, Jitter, Shimmer and NHR depending on location of residence but no difference with regard to depressive mood. Therefore, we must consider location of residence in elderly as the key factor in demonstrating the voice norms of seniors.