• Title/Summary/Keyword: Rhinoceros

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Entomopathogenic fungal infection of Allomyrina dichotoma in mass breeding conditions

  • Kwak, Kyu-Won;Nam, Sung-Hee;Choi, Hyo-Won;Choi, Ji-Young;Lee, Seok-Hyun;Kim, Hong-Geun;Han, Myung-Sae;Park, Kwan-Ho
    • International Journal of Industrial Entomology and Biomaterials
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    • v.31 no.1
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    • pp.20-24
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    • 2015
  • Increased use of rhinoceros beetles (Allomyrina dichotoma ) for food and medicine, and their elevated value as pets has led to an increase in the number of their breeding farms. Mass breeding of the insects in these farms leads to entomological diseases. In this study, we investigate cannibalism resulting from overcrowded breeding of A. dichotoma larvae, as well as secondary fungal infections in epidermal wounds in the surviving larvae. Some of the fungi detected in the present study showed entomopathogenicity, and the larvae showed different times of death. In particular, larvae infected with Clonostachys sp., an endophytic plant fungus, grew for a long time after infection, but died without pupating.

Development of Wearable Fashion Prototypes Using Entry-Level 3D Printers (보급형 3D 프린터를 활용한 착용형 패션 프로토타입 개발)

  • Chun, Jaehoon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.41 no.3
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    • pp.468-486
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    • 2017
  • In this study, three kinds of wearable fashion prototypes were developed using 3D printers with the goal of developing a practical production method for daily clothes. Prototypes were modeled using Rhinoceros software and developed using FDM 3D printers and TPU filaments. The results of this study are as follows. First, it confirmed the possibility of FDM-type entry-level 3D printers as a tool to develop wearable fashion products. Second, TPU filaments that are soft and ductile are highly likely to be used as a clothing material. Third, patterns designed through the 3D modeling process can be sampled directly to a 3D printer and easily corrected and supplemented. Fourth, it was confirmed that TPU prints of about 1.00mm thickness can be sewn with fabric using sewing machines through the development of 'Prototype 1' and 'Prototype 2'; in addition, hand stitching is also possible. Fifth, as in the case of 'Prototype 3', it is possible to fabricate a garment fit enough to the body if the clothing configuration is designed to connect the basic module using TPU filaments. In the future, the development of wearable fashion prototypes using various materials and 3D printing technology will help diversify everyday clothes.

On Ethnic Characteristics of Official Uniforms of Qing Dynasty by Analyzing the Rank System (등급체계 분석을 통한 청조(淸朝) 관복제도의 민족적 특성 연구)

  • Park Hyun-Jung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.30 no.4 s.152
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    • pp.554-566
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    • 2006
  • The purpose of this paper is to understand the ethnic characteristics of official uniforms of Qing(淸)) by comparing the rank systems of official uniforms of Ming(명(明)) and Qing(淸)) dynasties. As research documents, Dai-Ming-Huidian(大明會典)) and Qing-Huidian-Tu(淸明會圖)) have been used. This research shows that there are many traditional characteristics of Manchurians (滿族)) in the official uniforms of Qing(淸)) dynasty. The characteristics are as follows: First, Qing dynasty made their own official uniform based on the traditional Manchurians(滿族)) costume, and added rank system on it. Second, Qing dynasty used the animal's leather as the material of official uniforms and distinguished the level of the uniforms according to the rerity value of rareness, color, and warmth of the leather. Third, Qing dynasty used pearls produced in Manchuria as the highest level, as opposed to jades and rhinoceros horns of Ming. Fourth, Qing dynasty eliminated the animal's rank system of twelve patterns which had been used for whole history of China, but the Emperor is the only man who is able to use twelve patterns. Qing dynasty made her own pattern system of standstill/moving dragons and standstill/moving pythons. Fifth, Qing dynasty used the rank system by colors in the order of yellow, red, and blue consistently over various official uniforms, while Ming used different color orders for different uniforms.

Luster Properties of Polyester Micro-fiber Circular-Knitted Fabric and Fiber Luster Simulation

  • Jung, Jae-Myong;Kim, Jong-Jun;Jeon, Dong-Won
    • Journal of Fashion Business
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    • v.7 no.3
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    • pp.60-70
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    • 2003
  • Textile scientists have regarded the material appearance of natural fibers, especially that of silk or wool fibers, as the benchmark for reinventing the look and feel of the long term, friendly companion of mankind. The appearances or textures of the materials surrounding us in everyday life have long been interesting topics to many people.from scholars to painters. Even the simplest questions may require careful pondering. Why is the silk fabric so lustrous with subtlety? Recently, appearance models have become increasingly important in textile products. They are needed to model and simulate different models. In this study, the optical characteristics of filament yarns and knitted fabrics were investigated using images taken at various angles and illumination conditions. Then the images were analyzed using some image analysis techniques, such as thresholding and measuring luster blobs. The anisotropic nature of the filamentous specimens was studied based on the images acquired at different incident illumination and observing angles with several alignment positions of the fabric specimens. A few cylindrical models were generated using commercially available software, Rhinoceros, and then on the models, a ray-tracing algorithm based on a software, POV-Ray, was applied to simulate the appearance or lustrous images of the monofilament models.

A study of Meridian Scraping Therapy (괄사요법(刮痧療法)에 대한 고찰(考察))

  • Yu, Jin-Ho;Koh, Hyung-Kyun;Kang, Sung-Keel
    • Journal of Acupuncture Research
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    • v.17 no.3
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    • pp.45-56
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    • 2000
  • Objectives : Meridian Scraping Therapy(MST: Kwal-Sa: 刮痧) has not well known in Korea. But it's a kind of Traditional Physical Therapy wide spreaded in China and Taiwan. So I want to introduce this new Therapy by summarizing the basic theories and practical manipulations. Conclusions : To analyse the meaning of the character Kwal-Sa, Kwal(刮) means scraping the skin by some tools and Sa(痧) means originally the red spots on skin of measles but in this therapy it's the red spot on skin after the treatment. Meridian Scraping Therapy is based on the meridiology and holism which are the basic theory of Oriental Medicine. The main effects of Meridian Scraping Therapy are draining of pathogenic factors, promoring the flow of ki and blood, tonify yang, balancing the harmony of intemal organs and enhancing the immuno-ability in body. Rhinoceros corpus is common matrial of MST-plate which is the tool of manipulation. And by this plate several manipulation is performed according to the symptom and the locations of pain. The merits of MST are that easily learned by practician, the effects of the treatment are very quickly manifest and no significant side-effects. And additionally this therapy performed not only for treat diseases but prevent it and preserve health.

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Upregulation of Kruppel-like Factor 4 Gene expression by Allomyrina dichotoma Hemolymph in the INS-1 Pancreatic β-cells

  • Kwon, Kisang;Suh, Hyun-Woo;Kim, Hong Geun;Kwon, O-Yu
    • Biomedical Science Letters
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    • v.26 no.1
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    • pp.37-41
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    • 2020
  • The hemolymph of Korean rhinoceros Allomyrina dichotoma consists of blood and lymph in which various kinds of proteins function physiologically. We have previously demonstrated that A. dichotoma hemolymph has the potential to treatment and prevent diabetes through activating transcription factor 3-gene (ATF3) regulation. In this study, we investigate the expression of Kruppel-like factor 4 (KLF4) in A. dichotoma hemolymph-treated INS-1 pancreatic β-cells. The new findings show that A. dichotoma hemolymph, which upregulates KLF4 gene expression in a dose-dependent and time-dependent manner. In addition, hemolymph combine with mild endoplasmic reticulum (ER) stress, which also differentially regulates KLF4 gene expression. These results may provide insights to KLF4 gene-related disease therapies through KLF4 gene regulation.

Modern computer simulation for the design of concrete catenary shell structures

  • Lee, Joo Hong;Lee, Hyerin;Kang, Thomas H.K.
    • Computers and Concrete
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    • v.21 no.6
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    • pp.661-667
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    • 2018
  • The purpose of this study was to model and design a concrete catenary shell using a modern computer program without performing experiments. The modeling idea stems from the study by Pendergrast, but he listed supplementary items that should be improved in his paper. This study aims to resolve those issues and overcome the drawbacks of the study by Pendergrast. The process of experiment for the design of a catenary shell was reproduced by Grasshopper script. In order to ensure credibility, two models designed from the Grasshopper script were analyzed using a finite element program, SAP2000; one is a square-based catenary shell and the other is a special catenary shell called as the Naturtheater $Gr{\ddot{o}}tzingen$ shell, which was completed in 1977. First, the developed modeling approach was proved to be reasonable from the analysis of the square-based shell. The reliability was further confirmed by a comparison between the current and previous analysis results for the Naturtheater $Gr{\ddot{o}}tzingen$ shell.

Small creatures can lift more than their own bodyweight and a human cannot-an explanation through structural mechanics

  • Balamonica, K;Jothi Saravanan, T.;Bharathi Priya, C.;Gopalakrishnan, N.
    • Biomaterials and Biomechanics in Bioengineering
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    • v.4 no.1
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    • pp.9-20
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    • 2019
  • Living beings are formed of advanced biological and mechanical systems which exist for millions of years. It is known that various animals and insects right from small ants to huge whales have different weight carrying capacities, which is generally expressed as a ratio of their own bodyweights i.e., Strength to Bodyweight Ratio (SBR). The puzzle is that when a rhinoceros beetle (scientific name: Dynastinae) can carry 850 times its own bodyweight, why a man cannot accomplish the same feat. There are intrinsic biological and mechanical reasons related to their capacities, as per biomechanics. Yet, there are underlining principles of engineering and structural mechanics which tend to solve this puzzle. The paper attempts to give a plausible answer for this puzzle through structural mechanics and experimental modeling techniques. It is based on the fact that smaller an animal or creature, it has larger value of weight lifting by self-weight ratio. The simple example of steel prism model discussed in this paper, show that smaller the physical model size, larger is its SBR value. To normalize this, the basic length of the model need to be considered and when multiplied with SBR, a constant is arrived. Hence, the aim of the research presented is to derive this constant on a pan-living being spectrum through size/scaling effect.

Molecular Characterization of A Glycine and Proline-rich Antibacterial Protein from Larvae of A Beetle, Protaetia brevitarsis

  • Hwang, Jae-Sam;Kim, Seong-Ryul;Kang, Heui-Yun;Yun, Eun-Young;Ahn, Mi-Young;Park, Kwan-Ho;Jeon, Jae-Pil;Kim, Mi-Ae;Kim, Nam-Jung;Hwang, Seok-Jo;Kim, Ik-Soo
    • International Journal of Industrial Entomology and Biomaterials
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    • v.15 no.1
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    • pp.83-85
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    • 2007
  • A glycine and proline-rich antibacterial protein was cloned from larvae of a beetle, Protaetia brevitarsis. The DNAs encoded a deduced propeptide of 127 amino acid residues with predicted molecular weight of 14.0 kDa and PI of 7.89. Structural analysis of this protein indicated the presence of a recognition sequence for the cleavage site within the constitutive secretory pathway(Arg-Xaa-Lys/Arg-Arg), suggesting that mature portion(72 amino acid residues) is produced by cleavage of signal peptide and propeptide from 127 amino-acid-long precursor protein. Mature portion sequence of this protein showed 72% similarity to that of Oryctes rhinoceros Rhinocerosin and 91% to that of Holotrichia diomphalia holotricin 2. The mRNA expression was reached the highest level at 4 hrs after E. coli injection and then declined gradually.

Simultaneous detection of fungal, bacterial, and viral pathogens in insects by multiplex PCR and capillary electrophoresis

  • Kwak, Kyu-Won;Nam, Sung-Hee;Choi, Ji-Young;Lee, Seokhyun;Kim, Hong Geun;Kim, Sung-Hyun;Park, Kwan-Ho;Han, Myung-Sae
    • International Journal of Industrial Entomology and Biomaterials
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    • v.30 no.2
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    • pp.64-74
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    • 2015
  • Beetles Protaetia brevitarsis seulensis Kolbe (Coleoptera: Cetoniidae) and Allomyrina dichotoma Linn. (Coleoptera: Scarabaeidae) are widely used in traditional medicine, and the number of insect-rearing farms is increasing in South Korea. The purpose of this study was to establish a multiplex PCR-based assay for rapid simultaneous detection of multiple pathogens causing insect diseases. Six insect parasites such as fungi Beauveria bassiana (Bals.-Criv.) Vuill. (Hypocreales: Cordycipitaceae) and Metarhizium anisopliae (Metschn.) Sorokin (Hypocreales: Clavicipitaceae), bacteria Bacillus thuringiensis Berliner (Bacillales: Bacillaceae), Pseudomonas aeruginosa Migula (Pseudomonadales: Pseudomonadaceae), and Serratia marcescens Bizio (Enterobacteriales: Enterobacteriaceae), and Oryctes rhinoceros nudivirus were chosen based on the severity and incidence rate of insect diseases in South Korea. Pathogen-specific primers were designed and successfully applied for simultaneous detection of multiple infectious agents in farm-bred insects P. b. seulensis and A. dichotoma using multiplex PCR and high resolution capillary electrophoresis. Our results indicate that multiplex PCR is an effective and time-saving method for simultaneous detection of multiple infections in insects, and the QIAxcel capillary electrophoresis system is useful for quantitative evaluation of the individual impact of each infectious agent on the severity of insect disease. The approach designed in this study can be utilized for rapid and accurate diagnostics of infection in insect farms.