• Journal of Food Hygiene and Safety
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• v.24 no.4
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• pp.332-337
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• 2009

Most propionic acid is added to food (especially breads) as preservatives and its form is sodium or calcium salt. Most countries admitted propionic acid as food preservatives but a tolerance limit is somewhat different according to countries. Recoveries of the official method for propionates reported as 50.0~60.0%. Accordingly new rapid determination method for propionates was developed using formic acid added sodium chloride (5 g) and ether (formic acid : ether = 1 : 2) as the extraction solvent to improve the official method with the complex processes. Propionate was dissolved from the samples with formic acid omitting steam distillation and ion exchange procedure. Then propionate in formic acid was extracted with ether and sodium chloride again. A $1\;{\mu}l$ aliquot of the filtrate of ether was analyzed by gas chromatograph. Recoveries from sample A and B fortified with propionic acid sodium salt were 85.0 % and 90.0 %, respectively.

• Korean Journal of Environmental Agriculture
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• v.30 no.3
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• pp.339-345
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• 2011

BACKGROUND: Recently in Korea, the import of agricultural products is rising due to the increasing amount of trade. Unregistered pesticides, allidochlor, propachlor, propham, cycloate, diallate and pebulate are widely used as pesticides for rice cultivation in foreign countries, while they are not registered in Korea. Therefore, the residue amount of imported agri-foods should be verified using the proper official analytical method for each of them that has not registered in Korea. METHODS AND RESULTS: This work was conducted to apply the official method of Korea Food & Drug Administration (KFDA) for determining multi class pesticide multiresidues in agricultural commodities. Brown rice and orange which have different characteristics as a matrix were selected as representative samples for residue analysis. The recoveries of cycloate, diallate and pebulate by GC/MS in fortified brown rice and orange with levels of 0.04~0.4 mg/kg were ranged from 82.8% to 110.3%. The quantification limits of three pesticides in brown rice and orange were 0.04 mg/kg. CONCLUSION: As a result, this method can surely be used as an official method for routine analysis of unregistered pesticides in Korea for imported agri-food.

• Analytical Science and Technology
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• v.27 no.3
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• pp.167-171
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• 2014

Hydrofluoric acid (HF), a typical inorganic acid, has been used in the industry for its various usage and classified as the toxic compound, because it can cause the pneumonia and pulmonary edema when it was exposed to respiratory organs. The official environmental analytical method for fluorine and its compound in waste has not been developed. For this reason, we have faced some problem to treat the contaminated wastes by the HF leakage from industrial process. In this study, prepared for analytical method for combustible waste (crop, trees, etc.) generated from HF leaking accident and to be applied as the official analytical method for fluorine contaminated waste when the fluorine and its compound will be regulated as a hazardous material by the waste management law later.

• The Korean Journal of Pesticide Science
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• v.19 no.1
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• pp.1-4
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• 2015

The current official perfluorochemicals (PFCs) analysis method is established with hydrophilic-lipophilic balance (HLB) solid phase extraction (SPE) clean-up method with LC-tandem mass spectrometry ($MS^n$). Herein the HLB clean-up method from the official method by Korean government was modified with Envi-Carb$^{TM}$ to improve the clean-up efficiency for agricultural water and the unexpected UV disturbance in the water was effectively removed by the adsorbent treatment without a significant disturbance of quantitation. And quadrupole time of flight mass spectrometry (qTOFMS) was suggested to the available $MS^n$ instruments for the residue analysis of PFCs based on the ng/L of quantitation limits in water as well.

• Journal of Korean Library and Information Science Society
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• v.45 no.4
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• pp.365-390
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• 2014

This study intend to find the application methods of the FRBR model about legislation by analyzing a law life cycle from the enactment to the amendment and abolition of legislation and the type of the change after abolition. The legislation is the work as an aggregate entity consisting legal provisions and each provision is also the work. They are in the Whole-to-Part relation. The legislation has a effect by being published in the official gazette, and the updated text or the translated text is not the official version. Even if the name of the legislation is changed, it is treated as the same entity when it is not abolished and the simple rectifying text expressed in the official gazette is also legally valid. The Libraries Act has been replaced by the Libraries Act(old version), the Libraries Promotion Act, the Libraries and Reading Promotion Act and the Libraries Act(new version) in the order named, and it can be bounded into a superwork. For these examples, we provided the application method of FRBR model and suggested the actual application cases regarding Work, Expression, Manifestation and Item which are in Group 1 of FRBR model for the Libraries Act.

• Journal of Families and Better Life
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• v.35 no.1
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• pp.45-58
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• 2017

The purpose of this study was to explore the possibility of recruiting married immigrant women to participate in the Official Development Assistance (ODA) program. We used focus group interviews to understand their experiences with ODA, their intent to participate in the ODA, and the resources and barriers to ODA participation. The data were collected from 14 married immigrant women who were actively engaged in the labor force in Seoul and Gyunggi areas. Data were analyzed based on the thematic analysis method. Four themes were identified including the women's experiences, motivation, barriers, and resources for ODA participation. Out of the 14 women, three had participated in the ODA and were happy with the experiences. The rest of the women wanted to participate in the ODA that supported their home countries. The results also highlighted that these married immigrant women had capabilities including a strong desire to participate in vocational development and support from their families, but they also had barriers to overcome such as a lack of work capacity, child care burden, and difficulty forming relationships with Korean colleagues. Despite these barriers, they were motivated to participate in the ODA since it would be very meaningful for them to help their home country and to improve awareness of Korea and married immigrant women. It is important to develop vocational education programs for these women to enhance the work skills that are needed in the ODA.

• Journal of Preventive Medicine and Public Health
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• v.29 no.2 s.53
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• pp.227-238
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• 1996

This study was conducted to evaluate the accuracy of the official death registry in rural area. The base data used for the study was 379 deaths registered during the period of 1993 and 1994 in 4 rural townships of Chonnam province. The interview survey for cause-of-death was performed on the next of kin and/or neighbor. Additional medical informations were collected from hospitals and medical insurance associations for the purpose of verification. The underlying cause-of-death of 278 cases presumed by the survey was compared to the cause on official death registry. There was a prominent disagreement of cause-of-death between the survey data and the registry data(agreement rate: $38.9\sim44.6%$, according to disease classification method). These results may be caused by extremely low rates of physicians' certification, which were mostly confined to the poisoning and injury. Symptoms, signs, and ill defined conditions on death registry could be classified into circulatory disease(32.3%), neoplasm(21.2%), digestive disease(7.1%), injury and poisoning(7.1%) and so on. These results suggest that careful attention and verification be required on utilization of death registry data in rural area.

• Journal of Fashion Business
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• v.24 no.1
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• pp.75-87
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• 2020

The purpose of this study is to find trends in new media fashion content by analyzing the fashion content of the official Instagram accounts of domestic fashion magazines that are being transformed by digital media. The framework for these analysis of fashion content type and methods of production is based on one used in an earlier research project. Empirical analysis is conducted on Vogue Korea's official Instagram accounts, using the highest number of major views as the secondary measure of interest. After screening for fashion content in posts on the Vogue Korea account for four months, 291 short video postings were extracted to analyze the number of views the postings received. The results were categorized as 'star', 'show/exhibition', 'product', 'shop', 'fashion film', 'designer', or 'event', included in the data are the number of postings by type and the number of views by post. Based on the characteristics of the creator and the editing, the posts were classified into 'professional production highlight', 'professional production private', 'UCC' or 'GIF' videos, the number of views per post were also collected. The research results show different levels of interest depending on the type of fashion content, and also on the way the videos were produced. The study also investigated how the combination of these two factors affects interest. When producing a new media fashion content, combining a 'star' type post with 'professional production private' video content was most popular. The selection of production method is therefore important even given the same type of content.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.2
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• pp.1016-1025
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• 2015

This study tried to identify the influential users of college sports teams' Twitter accounts and categorize them into three groups including an official account, media account, and layperson account. A total of 14 Twitter accounts at NCAA Division 1 universities were selected through convenience sampling method. In men's sports, the greatest number of influential users was layperson account followed by media account and official account. In women's sports, the greatest number of influential users was layperson account followed by official account and media account. The results provided the insight of college sports online social network and will expand the growing literature on social media in sport and offer practical data for marketers to use social media more effectively.

• Journal of Korea Society of Industrial Information Systems
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• v.27 no.4
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• pp.115-126
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• 2022

Under the COVID-19 pandemic, the importance of Official Development Assistance(ODA) in health and medical service is emphasized more. The number of cases is expected to increase in the future. Therefore, it is necessary to provide differentiated education and training for each type of occupation as a follow-up to realize the operations management and maintenance of medical equipment supported by the ODA project. In this study, for an effective follow-up and operations management of medical equipment supported by the ODA project, the differences in educational training achievement between users and maintainers were analyzed through a t-test. As a result of this study, there were significant differences between users and maintainers of medical equipment in use and manage six types of priority management target medical equipment(Q5) and an instruction manual understanding of medical equipment(Q6). However, there was no difference in the need and purpose of education and training, satisfaction with an instructor, and the need for cross-professional communication.