• Korean journal of applied entomology
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• v.4
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• pp.65-66
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• 1965

This study was intended to know the histological damage of the gall on the leaves, peduncles and calyx of Lycium chinense $M_{ILL}$ formed Eriophyes kuko $K_{ISHIDA}$ during 1962 to 1965. The results are summarized as follows; 1. Eriophyes kuko $K_{ISHIDA}$ fed on only the Palisade layers of the loaves of Lycium chinense $M_{ILL}$ were injured by boring. 2. From the 1st to 10th day, some parts of the spongy layer of the Lycium chinense $M_{ILL}$ leaves were injured, but variation were not significant in this period. 3. From the 15th day, Eriophyes kuko $K_{ISHIDA}$ injured not only the spongy layer of Lycium chinense $M_{ILL}$. leaves but also the great part of e chloroplast of the loaves, and the sponginess caves were appeared inside of the galls.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.259-269
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• 2019

The purpose of this study is to investigate the necessity and activation plan of trial work to increase the re-employment of injured industrial workers. This study applied an internet and paper questionnaire method to 1,058 employers listed in the Korea Workers' Compensation and Welfare Services. The employers were asked about their experiences with trial work and their preferences for supports. From September 2018, the survey was conducted for 6 weeks and a total of 201 questionnaires were analyzed. Descriptive analysis and t-tests were applied. The results of the study showed that the trial work system satisfied the employers who participated in it. In order for this system to operate smoothly for injured workers, it is necessary to simplify the system's procedures, increase the amount of the trial work subsidy, and improve the amount of support after the workers convert to full time employment. In order for employers to use the new system, $750 per month will be provided for 8 months when hiring one injured worker. Eighty percent of employers stated that they would hire injured workers if the subsidy and application period are accepted. Future study and suggestions for applying the trial work system for injured industrial workers are also discussed.

• 보존과학연구
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• s.30
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• pp.31-46
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• 2009

In the study, we confirmed morphological traits and calculated the Risk Class of 25 mould species, including Tyromyces palustris, through decomposition rate of substrate for characteristic confirmation of injured microorganisms. We received the injured microorganisms in wood and it was pure cultivated. We observed growth traits and decomposition rate of substrate. Also, it allows the calculation of Risk Class to be worried in the case of growth in wooden cultural properties. As a result, Tyromyces palustris, representative of brown-rot, has the characteristics about decomposition rate of substrate - Cellulose ; more active(+++), Lignin ; more active(+++), Xylan ; more active(+++), Starch ; active(++). We classified Tyromcyes palustris as a first Risk Class and as a second Risk Class about Schizophyllum commune et al(9 species, See table 1. We look forward to offering standard data base for evaluating Risk Class as a matter of applying preventive conservation in wooden cultural properties through our study.

• Korean Journal of Microbiology
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• v.25 no.4
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• pp.309-317
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• 1987

It was known that normal-haemolymph from the 3rd instar larvae of Lucillia illustris contain a lysozyme (or lysozyme-like substance) with bactericidal activity to fram positive bacteria, and the bactericidal activity of injured-haemolymph was increased significantly after injuring the body wall. To elucidate the defence mechanism of insect against the nonpathogenic bacteria, the immune-haemolymph against Escherichia coli K-12 was prepared after immunization. The bactericidal activity between injured and immune-haemolymph was compared, and it was revealed that the immune-haemolymph showed higher titer of bactericidal activity to fram positive bacteria as well as to Escherichia coli. The bactericidal substance from the immune-haemolymph was purified through a successive chromatographies on Sephacryl S-300 and CM-Sepharose CL-6B, and it was characterized as a basic protein in nature with heat stable property at acidic conditions.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.31 no.4
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• pp.484-493
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• 2021

Objectives: The purpose of this study is to understand and explain the meaning and nature of post-traumatic stress among industrially injured workers. Methods: In this study, Colaizzi's phenomenological research method and an in-depth interview were used, and data were collected from 8 industrially injured workers among adult men and women over the age of 20, those who are able to express their opinions, have experienced injuries due to industrial accidents, and those who have been injured for more than 6 months who had participated in the study from 1st May 2021 to 30th September. The in-depth interview with research participants took approximately 30 minutes to 90 minutes on average. Results: The research results were classified into five categories, eleven thematic collections, and 27 themes. The Five categories were 'maze with no exit', 'erased existence', 'impenetrable barrier', 'tightly closed iron gate', and 'overcoming reality hurdles'. Conclusions: This study can help understand and describe the experiences of post-traumatic stress among workers who have experienced industrial accidents by taking a phenomenological approach. It suggests the need for program intervention and institutional improvement for psychosocial rehabilitation as well as an institutional approach toward these targets.

• Journal of The Korean Society of Clinical Toxicology
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• v.14 no.1
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• pp.33-36
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• 2016

Purpose: This study was conducted to identify the characteristics associated with sulfuric acid injury in the emergency department. Methods: Data were collected retrospectively from January 2007 to December 2015 on all sulfuric acid injuries presenting to the emergency department in Gu-mi Soonchunhyung University Hospital. Patients injured by sulfuric acid were recorded over a nine year study period and collected data included demographics, injury mechanism, injured body part, hospital care and final diagnosis. Results: A total of 26 cases were identified. Most patients were male (88.5%) and the face was the most commonly injured body part. The most common mechanism of injury was splashing injury. A total of 16 (61.5%) patients were identified as having lesions worse than second degree burns. Conclusion: Sulfuric acid can cause severe and fatal skin burn. When working with sulfuric acid, acid proof protect clothing, goggles and glove should be worn. Furthermore, safety education and workplace environment improvement are necessary to reduce sulfuric acid injury.

• The Journal of Internal Korean Medicine
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• v.20 no.1
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• pp.83-98
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• 1999

This study is designed to investigate the effects of Samul-Tang extract on the response of lactic dehydrogenase(LDH) release, cellular activity, lipid peroxidation, DNA synthesis and the changes of total protein of bovine pulmonary artery endothelial cells(PAEC) from hydrogen peroxide$(H_2O_2)$-induced injury. The results are as follows : 1. Samul-Tang significantly decreased $H_2O_2$-induced release of LDH from injured bovine PAEC. 2. Samul-Tang significantly repressed $H_2O_2$-induced cellular activity from injured bovine PAEC. 3. Samul-Tang significantly repressed $H_2O_2$-induced lipid peroxidation from injured bovine PAEC. 4. Samul-Tang significantly stimulated DNA synthesis in bovine PAEC. 5. Samul-Tang significantly repressed $H_2O_2$-induced changes of total protein volume from injured bovine PAEC. Above results suggest that Samul-Tang can protect bovine PAEC from $H_2O_2$-induced injury. These results can be effectively applied to the prevention and cure of cardiovascular and cerebrovascular diseases.

• Korean Journal of Occupational Health Nursing
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• v.16 no.2
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• pp.168-176
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• 2007

Purpose: This study was to investigate the factors influencing on the quality of life (QOL) among herniation of nucleus pulposus (HNP) patients caused by occupational accidents. Method: 203 patients of HNP were recruited. 106 patients were occupationally injured workers who benefited from workmen's compensation scheme (PWCS group), and 43 patients were non-occupationally injured workers benefiting from national health insurance (PNHI group). Questions of QOL items were used by Korean version of SBQOL (SmithKlein Beecham's Qality of Life). Result: The quality of life of PWCS group measured by SBQOL was significantly lower than that of PNHI group. In PWCS group, SBQOL was significantly lower in patients with 40s of their age, 5 years or longer of treatment duration, no expectation of return to work, no expectation of recovering subject's health, and with loss of employment than rest of the patients in each category. Expectations of recovering subject's health showed to be affect factors on QOL both the PWCS and PNHI groups. Conclusion: It suggested that betterment of expectation of recovering patient's health and an administrative system for returning to work of the occupationally injured HNP patients during treatment be necessary for improvement of their quality of life.

• Korean journal of applied entomology
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• v.52 no.1
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• pp.45-51
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• 2013

Tropical plants of mango(Mangefera indica), dragon fruit(Hylocereus undatus), and atemoya(Annona cherimola ${\times}$ A. squamosa) are cultivated in Jeju, Korea. A pest survey on those tropical fruits was conducted from 2008 to 2011. Major pests of Mango were thrips, aphid, mealybug, and lepidoptera species. Thrips palmi and Scirtothrips dorsalis were the most important pests in mango fields. T. palmi mainly injured the leaf but S. dorsalis injured the leaf and fruit. Lepidoptera mango pests injured leaves but some larva of Adoxophyes honmai injured fruit surface around the stem. Aphid pests, Aphis gossypii and Myzus persicae, injured the shoots and Pseudococcus kraunhiae occurred on the stem and fruit. Ant species, A. gossypii, and S. litura, were important pests on dragon fruit. Ants and aphid occurred and injured the stem, flower, and fruit. Spodoptera litura larva severely injured the stem. Among the atemoya pests, S. litura and Homona magnanima caused severe damage.

• Journal of Power System Engineering
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• v.20 no.4
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• pp.32-37
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• 2016

This paper proposes two measurement methods for injured rate of fish surface using color image segmentation method based on K-means clustering algorithm and Otsu's threshold algorithm. To do this task, the following steps are done. Firstly, an RGB color image of the fish is obtained by the CCD color camera and then converted from RGB to HSI. Secondly, the S channel is extracted from HSI color space. Thirdly, by applying the K-means clustering algorithm to the HSI color space and applying the Otsu's threshold algorithm to the S channel of HSI color space, the binary images are obtained. Fourthly, morphological processes such as dilation and erosion, etc. are applied to the binary image. Fifthly, to count the number of pixels, the connected-component labeling is adopted and the defined injured rate is gotten by calculating the pixels on the labeled images. Finally, to compare the performances of the proposed two measurement methods based on the K-means clustering algorithm and the Otsu's threshold algorithm, the edge detection of the final binary image after morphological processing is done and matched with the gray image of the original RGB image obtained by CCD camera. The results show that the detected edge of injured part by the K-means clustering algorithm is more close to real injured edge than that by the Otsu' threshold algorithm.