• Title/Summary/Keyword: REX-10

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Study of the Design of Data Acquisition and Analysis Systems for Multi-purpose Regional Energy Systems

  • Lee, Han-Sang;Yoon, Dong-Hee;Jang, Gil-Soo;Park, Jong-Keun;Park, Goon-Cherl
    • Journal of Electrical Engineering and Technology
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    • v.5 no.1
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    • pp.16-20
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    • 2010
  • Recently, the smart grid has become a hot issue and interest in related power sources have increased accordingly. The implementation of a smart grid can enable many generation resources to be linked to the power system, including small-scale reactors for the purpose of co-generation. Research on small-scale reactors is being carried out all over the world. Similarly, Korea is also conducting research on multi-purpose regional energy systems using nuclear energy. This paper proposes a real-time data acquisition and analysis system for small-scale reactors, and is known as the REX-10 (Regional Energy rX 10 MVA). This analysis requires real-time simulations for the power system since it needs data communication with a remote REX-10. A RTDS (Real Time Digital Simulator) has been used for the simulation, and a SCADA/HMI system interfaced with the RTDS is proposed for the purpose of monitoring and control of the regional energy system.

Pinnal dermatitis caused by Arthroderma vanbreuseghemii in a Rex rabbit

  • Rhim, Haerin;Na, Ki-Jeong;Han, Jae-Ik
    • Korean Journal of Veterinary Service
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    • v.40 no.1
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    • pp.75-78
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    • 2017
  • This report describes a case of pinnal fungal dermatitis caused by Arthroderma vanbreuseghemii in a Rex rabbit diagnosed by clinical signs, macro- and microscopic examination, molecular and phylogenetic analyses. This is the first description of natural A. vanbreuseghemii infection in rabbits in South Korea.

Hair follicle development and related gene and protein expression of skins in Rex rabbits during the first 8 weeks of life

  • Wu, Zhenyu;Sun, Liangzhan;Liu, Gongyan;Liu, Hongli;Liu, Hanzhong;Yu, Zhiju;Xu, Shuang;Li, Fuchang;Qin, Yinghe
    • Asian-Australasian Journal of Animal Sciences
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    • v.32 no.4
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    • pp.477-484
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    • 2019
  • Objective: We aimed to observe hair follicle (HF) development in the dorsal skin and elucidate the expression patterns of genes and proteins related to skin and HF development in Rex rabbits from birth to 8 weeks of age. Methods: Whole-skin samples were obtained from the backs of Rex rabbits at 0, 2, 4, 6, and 8 weeks of age, the morphological development of primary and secondary HFs was observed, and the gene transcript levels of insulin-like growth factor-I (IGF-I), epidermal growth factor (EGF), bone morphogenetic protein 2 (BMP2), transforming growth factor ${\beta}-1$, 2, and 3 ($TGF{\beta}-1$, $TGF{\beta}-2$, and $TGF{\beta}-3$) were examined using quantitative real-time polymerase chain reaction (PCR). Additionally, Wnt family member 10b (Wnt10b) and ${\beta}$-Catenin gene and protein expression were examined by quantitative real-time PCR and western blot, respectively. Results: The results showed significant changes in the differentiation of primary and secondary HFs in Rex rabbits during their first 8 weeks of life. The IGF-I, EGF, $TGF{\beta}-2$, and $TGF{\beta}-3$ transcript levels in the rabbits were significantly lower at 2 weeks of age than at birth and gradually increased thereafter, while the BMP2 and $TGF{\beta}-1$ transcript levels at 2 weeks of age were significantly higher than those at birth and gradually decreased thereafter. ${\beta}$-Catenin gene expression was also significantly affected by age, while the Wnt10b transcript level was not. However, the Wnt10b and ${\beta}$-catenin protein expression levels were the lowest at 2 and 4 weeks of age. Conclusion: Our data showed that a series of changes in HFs in dorsal skin occurred during the first 8 weeks. Many genes, such as IGF-I, EGF, BMP2, $TGF{\beta}-1$, $TGF{\beta}-2$, $TGF{\beta}-3$, and ${\beta}$-Catenin, participated in this process, and the related proteins Wnt10b and ${\beta}$-Catenin in skin were also affected by age.

Growth Responses of Dieffenbachia amoena 'Marianne' and Begonia rex to Different Lengths and Numbers of Slitwalls in Drainless Containers for Green Technology (녹색기술 무배수구 용기깊이와 슬릿(Slit)차이에 따른 디펜바키아 마리안느와 렉스 베고니아의 생육반응)

  • Ju, Jin-Hee;Yoon, Yong-Han
    • Journal of Environmental Science International
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    • v.21 no.8
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    • pp.931-938
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    • 2012
  • The effects were investigated of different lengths and numbers of slitwalls in drainless containers on growth and change in soil moisture volumes on the growth of Diffenbachia amoena 'Marianne' and Begonia rex. Drainless containers filled with amended soil, with square shape ($240mm{\times}240mm$) were used, as well as three different sets of slitwalls (2, 4 or 8, respectively) in addition to non-slitwall containers. Two indoor foliage plants were grown in slitwall containers in randomized blocks with 3 replications in greenhouse conditions, from March to September, 2009. Soil moisture volumes per container were measured by weighing containers every 2 hours during the day. The change in soil moisture volumes showed considerable differences among slitwalls tested in comparison to control containers before and after twice-weekly irrigation. Particularly, the differences in the S2 (195mm, slitwall 2) containers were significantly greater than other containers tested. For Diffenbachia amoena 'Marianne', plant height, length of leaf, dry weight and fresh weight were higher with S2 containers than with those grown in other containers tested. The Begonia rex with the best quality in terms of plant height, length of leaf and width of leaf was grown in S8 (360mm, slitwall 8) containers. Particularly, statistical analysis has indicated that shoot fresh weights of Begonia rex grown in S8 were 3-fold higher than those grown in CS8 containers. The different results obtained within the two species led us to hypothesize a species-specific influence on indoor foliage plant performance. However, plants of both species grown in slitwall containers showed good results compared with plants grown in non-slitwall containers.

Effects of Colostrum Basic Protein from Colostrum Whey Protein: Increases in Osteoblast Proliferation and Bone Metabolism

  • Lee, Jeong-Rai;Kim, Hyun-Mi;Choi, Hee-Sun;Hong, Jeong-Hwa
    • Preventive Nutrition and Food Science
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    • v.12 no.1
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    • pp.1-6
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    • 2007
  • Colostrum basic proteins (CBP) (MW 1$\sim$30 kDa) were isolated from bovine colostrum using a series of ultrafiltration processes and their effects on osteoblast cell proliferation and bone metabolism were investigated in cell line and animal models. Treatments with CBP (1, 10, 100 $\mu$g/mL) dose-dependently increased cell proliferation of osteoblastic MC3T3 cells. Alkaline phosphatase activity, a marker of osteoblastic phenotype, in the cells was also increased after treatments with CBP in a dose-dependent manner. Significant increases in bone density were observed in femur of ovariectomized rats which were fed a diet with 1% and 10% CBP, compared to rats fed a normal diet. These results suggest that CBP may increase bone mass and density and be useful for the prevention of bone-related diseases.

Considerations for generating meaningful HRA data: Lessons learned from HuREX data collection

  • Kim, Yochan
    • Nuclear Engineering and Technology
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    • v.52 no.8
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    • pp.1697-1705
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    • 2020
  • To enhance the credibility of human reliability analysis, various kinds of data have been recently collected and analyzed. Although it is obvious that the quality of data is critical, the practices or considerations for securing data quality have not been sufficiently discussed. In this work, based on the experience of the recent human reliability data extraction projects, which produced more than fifty thousand data-points, we derive a number of issues to be considered for generating meaningful data. As a result, thirteen considerations are presented here as pertaining to the four different data extraction activities: preparation, collection, analysis, and application. Although the lessons were acquired from a single kind of data collection framework, it is believed that these results will guide researchers to consider important issues in the process of extracting data.

Rectal Prolapse Due to Rectal Polyp Associated with Chronic Eosinophilic Proctitis in a Rex Rabbit

  • Han, Jang-Hee;Ha, Minjong;Ahmed, Sohail;Woo, Sang-Ho;Oh, Jeong-Seop;Yeon, Seong Chan
    • Journal of Veterinary Clinics
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    • v.39 no.2
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    • pp.75-80
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    • 2022
  • An 11-year-old male Rex rabbit (Oryctolagus cuniculus) had a rectal prolapse induced by a polypoid mass. The mass was highly vascularized with a cauliflower-like appearance. Anorectal papilloma was suspected, and fine needle aspiration cytology showed eosinophilic inflammation. After surgical removal of the polyp, postoperative care was given, such as systemic antibiotics and analgesics. In the re-examination, the rabbit was resolved, and there were no complications. Histopathological examination of the removed polyp indicated chronic eosinophilic proctitis to be the cause of the inflammatory condition of the protruding rectal polyp.