• Title/Summary/Keyword: Animal backbone

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Shape Finding of Bio-Tensegrity Structural System (바이오텐세그리티 구조 시스템의 형상 결정)

  • Yang, Dae-Hyeon;Kim, Mi-Hee;Kang, Joo-Won;Kim, Jae-Yeol
    • Journal of Korean Association for Spatial Structures
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    • v.18 no.2
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    • pp.25-34
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    • 2018
  • This study investigated a bio-tensegrity structural system that combines the characteristics of a general tensegrity structural system with a biological system. The final research objective is to accomplish a changeability for the structural system as like the movement of the natural bio-system. In the study, we present a shape finding procedure for the two stage bio-tensegrity system model inspired by the movement pattern of animal backbone. The proposed system is allowing a dynamic movement by introducing the concept of "saddle" for the variable bio-tensegrity structure. Several shape finding analysis example and results are presented and shows a efficient validation and suitability.

Algorithm Development for Movable Tensegrity Structure by Iot (Iot에 기반한 동적 텐세그리티 구조를 위한 알고리즘 개발)

  • Jeon, Sang-Hyeon;Ha, Chang-Woo;Kim, Hee-Kyun;Kim, Jae-Yeol
    • Journal of Korean Association for Spatial Structures
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    • v.20 no.4
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    • pp.35-44
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    • 2020
  • In the study, a shape finding procedure for the tensegrity system model inspired by the movement pattern of animal backbone was presented. The proposed system is allowing a dynamic movement by introducing the concept of "saddle" for the variable tensegrity structure. Mathematical process and an algorithm for movable tensegrity to specified points were established. Several examples have applied with in established shape finding analysis procedure. The final tensegrity structures were determined well to a object shape.

Crop-Animal Production Systems in Tropical Regions - Review -

  • Devendra, C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.2
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    • pp.265-276
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    • 2000
  • Crop-animal systems which form the backbone of agriculture in the tropics are discussed with reference to their characteristics, economic importance of animals, genesis and types of crop-animal systems, relevance and potential importance, and priorities for research and development. These production systems are found across all agroecological zones: rain-fed temperate and highland systems, semi-arid and arid tropics, and sub-humid and humid tropics: the last four are priority areas in Asia. The potential importance of these systems in Asia is reflected in their advantages, synergism and complimentarity, economic benefits and contribution to sustainability. Illustrative case studies are cited which are appropriate to the two broad types of mixed farming systems: systems combining animals and annual cropping, and systems combining animals with perennial cropping with reference to Indonesia, Philippines, Malaysia, Sri Lanka, China and Nigeria. Priorities for research and development should address more complete use of the animal genetic resources, intensive utilisation of the feed resources, development-oriented utilisation of research results, minimizing animal diseases, and implementation of appropriate institutional and policy issues.

Deep learning framework for bovine iris segmentation

  • Heemoon Yoon;Mira Park;Hayoung Lee;Jisoon An;Taehyun Lee;Sang-Hee Lee
    • Journal of Animal Science and Technology
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    • v.66 no.1
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    • pp.167-177
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    • 2024
  • Iris segmentation is an initial step for identifying the biometrics of animals when establishing a traceability system for livestock. In this study, we propose a deep learning framework for pixel-wise segmentation of bovine iris with a minimized use of annotation labels utilizing the BovineAAEyes80 public dataset. The proposed image segmentation framework encompasses data collection, data preparation, data augmentation selection, training of 15 deep neural network (DNN) models with varying encoder backbones and segmentation decoder DNNs, and evaluation of the models using multiple metrics and graphical segmentation results. This framework aims to provide comprehensive and in-depth information on each model's training and testing outcomes to optimize bovine iris segmentation performance. In the experiment, U-Net with a VGG16 backbone was identified as the optimal combination of encoder and decoder models for the dataset, achieving an accuracy and dice coefficient score of 99.50% and 98.35%, respectively. Notably, the selected model accurately segmented even corrupted images without proper annotation data. This study contributes to the advancement of iris segmentation and the establishment of a reliable DNN training framework.

An Outline of Meat Consumption in the Indian Population - A Pilot Review

  • Devi, Subramaniam Mohana;Balachandar, Vellingiri;Lee, Sang In;Kim, In Ho
    • Food Science of Animal Resources
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    • v.34 no.4
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    • pp.507-515
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    • 2014
  • The consumption of meat is increasing in India and agriculture is considered as the backbone of a majority of people. Livestock plays a significant role, and poultry and dairy are the major sectors contributing to economic development. The majority of meats consumed in India are fish, bovine, mutton, goat, pig, and poultry. In Indian context, culture, traditions, customs, and taboos influence meat consumption to a great extent. However, studies show that urbanization has been causing a rise in demand for meat products. India is the world's second largest exporter of beef. In India, 95% of goat meat produced is consumed locally. Meat consumption, in particular, is determined by the religions where pork is forbidden to Muslims and beef is prohibited to Hindus. The preference and consumption of chicken meat can be considered as a universal phenomenon and chicken meat is greatly accepted by consumers in India as compared to the other meat consumption. The increase of chicken meat consumption is due to the versatility of the meat, relatively low cost in comparison to other meat, and the acceptance of the chicken meat to all religions. There has been a great rise in the production of livestock products and this is expected to continue in the future. The pattern of meat consumption depends considerably on culture, tradition and urbanization. This review was formulated with the objective of identifying the meat consumption patterns in a typical Indian society.

Effect of Glucose Levels and N Sources in Defined Media on Fibrolytic Activity Profiles of Neocallimastix sp. YQ1 Grown on Chinese Wildrye Grass Hay or Alfalfa Hay

  • Yang, H.J.;Yue, Q.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.3
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    • pp.379-385
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    • 2011
  • Ferulic acid esterase (FAE) and acetyl esterase (AE) cleave feruloyl groups substituted at the 5'-OH group of arabinosyl residues and acetyl groups substituted at O-2/O-3 of the xylan backbone, respectively, of arabinoxylans in the cell wall of grasses. In this study, the enzyme profiles of FAE, AE and polysaccharide hydrolases of the anaerobic rumen fungus Neocallimastix sp. YQ1 grown on Chinese wildrye grass hay (CW) or alfalfa hay (AH) were investigated by two $2{\times}4$ factorial experiments, each in 10-day pure cultures. The treatments consisted of two glucose levels ($G^+$: glucose at 1.0 g/L, $G^-$: no glucose) and four N sources (N1: 1.0 g/L yeast extract, 1.0 g/L tryptone and 0.5 g/L $(NH_4)_2SO_4$; N2: 2.8 g/L yeast extract and 0.5 g/L $(NH_4)_2SO_4$; N3: 1.6 g/L tryptone and 0.5 g/L $(NH_4)_2SO_4$; N4: 1.4 g/L tryptone and 1.7 g/L yeast extract) in defined media. The optimal combinations of glucose level and N source for the fungus on CW, instead of AH, were $G^-N4$ and $G^-N3$ for maximum production of FAE and AE, respectively. Xylanase activity peaked on day 4 and day 6 for the fungus grown on CW and AH, respectively. The activities of esterases were positively correlated with those of xylanase and carboxymethyl cellulase. The fungus grown on CW exhibited a greater volatile fatty acid production than on AH with a greater release of ferulic acid from plant cell wall.

Identification of Quantitative Traits Loci (QTL) Affecting Growth Traits in Pigs

  • Kim, T.H.;Choi, B.H.;Lee, H.K;Park, H.S.;Lee, H.Y.;Yoon, D.H.;Lee, J.W.;Jeong, G.J.;Cheong, I.C.;Oh, S.J.;Han, J.Y.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.11
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    • pp.1524-1528
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    • 2005
  • Molecular genetic markers were used to detect chromosomal regions which contain economically important traits such as growth, carcass, and meat quality traits in pigs. A three generation resource population was constructed from a cross between Korean native boars and Landrace sows. A total of 240 F2 animals from intercross of F1 was produced. Phenotypic data on 17 traits, birth weight, body weights at 3, 5, 12, and 30 weeks of age, teat number, carcass weight, backfat thickness, body fat, backbone number, muscle pH, meat color, drip loss, cooking loss, water holding capacity, shear force, and intramuscular fat content were collected for F2 animals. Animals including grandparents (F0), parents (F1), and offspring (F2) were genotyped for 80 microsatellite markers covering from chromosome 1 to 10. Least squares regression interval mapping was used for quantitative trait loci (QTL) identification. Significance thresholds were determined by permutation tests. A total of 10 QTL were detected at 5% chromosome-wide significance levels for growth traits on SSCs 2, 4, 5, 6, and 8.

A Study on the shaman's costume of the east siberia. (동시베리아 샤만 복식-야쿠트인, 유카기르인, 골디인을 중심으로-)

  • 박금주
    • Journal of the Korean Society of Costume
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    • v.22
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    • pp.85-96
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    • 1994
  • The purpose of this research is to find out the role of shaman's costume in Yakut Yukachir Goldi. The results are as follows: 1. Yakut shaman's costumes are decorated by their worship symbols made from metals-wild ducks crucian carps diving beetles and fishes. They believe that these costumes help shamans to travel the heaven underwater or underground systems to collect wanted infor-mation transforming them into the shape of decorated animals. 2. Yukachir shaman's costumes are decorated by symbolized cross medals in the shape of birds and human designed backbone which give shamans much power and many different kinds of medals and tassels representing all sorts and conditions of shaman's power. They consider their cstumes as feather and believe they give them new power and make them to fly anywhere they want. 3. Goldi shaman's costumes have paintings of animal guradians-leopards tigers bears birds snakes lizards and so on. Birds represents freedom of the spirit and eternity. snakes represents rebirth and immorality and lizards represents the trees of underground the earth and the lifetrees of the heaven. Shamans ascend through th holy tree to th heaven and to the world of underground in a comatose condition. Shaman costume itself plays the role of the spiritual safeguard. Wearing their costume shaman get all animal's supernatural authority and power. This makes the shaman to contact with the spirit and to travel the heaven and the under-ground world.

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Effects of Xylanase Supplementation on Growth Performance, Nutrient Digestibility and Non-starch Polysaccharide Degradation in Different Sections of the Gastrointestinal Tract of Broilers Fed Wheat-based Diets

  • Zhang, L.;Xu, J.;Lei, L.;Jiang, Y.;Gao, F.;Zhou, G.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.27 no.6
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    • pp.855-861
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    • 2014
  • This experiment was performed to investigate the effects of exogenous xylanase supplementation on performance, nutrient digestibility and the degradation of non-starch polysaccharides (NSP) in different sections of the gastrointestinal tract (GIT) of broilers fed wheat-based diets. A total of 120 7-day-old Arbor Acres broiler chicks were randomly allotted to two wheat-based experimental diets supplemented with 0 or 1.0 g/kg xylanase. Each treatment was composed of 6 replicates with 10 birds each. Diets were given to the birds from 7 to 21 days of age. The results showed that xylanase supplementation did not affect feed intake, but increased body weight gain of broiler at 21 day of age by 5.8% (p<0.05) and improved feed-to-gain ratio by 5.0% (p<0.05). Xylanase significantly increased (p<0.05) ileal digestibilities of crude protein (CP) by 3.5%, starch by 9.3%, soluble NSP by 43.9% and insoluble NSP by 42.2% relative to the control group, respectively. Also, compared with the control treatment, xylanase addition increased (p<0.05) total tract digestibilities of dry matter by 5.7%, CP by 4.1%, starch by 6.3%, soluble NSP by 50.8%, and had a tendency to increase (p = 0.093) insoluble NSP by 19.9%, respectively. The addition of xylanase increased the concentrations of arabinose and xylose in the digesta of gizzard, duodenum, jejunum, and ileum (p<0.05), and the order of their concentration was ileum>jejunum>duodenum>>gizzard> caecum. The supplementation of xylanse increased ileal isomaltriose concentration (p<0.05), but did not affect the concentrations of isomaltose, panose and 1-kestose in the digesta of all GIT sections. These results suggest that supplementation of xylanase to wheat-based diets cuts the arabinoxylan backbone into small fragments (mainly arabinose and xylose) in the ileum, jejunum and duodenum, and enhances digestibilites of nutrients by decreasing digesta viscosity. The release of arabinose and xylose in the small intestine may also be the important contributors to the growth-promoting effect of xylanase in broilers fed wheat-based diets.

Analyses of Middle School Students' Thoughts Causing Common Mistakes on Animal Classification (중학생의 동물 분류에서 오류 원인이 되는 사고 내용 분석)

  • Gim, Wn Hwa;Hwang, Ui Wook;Kim, Yong-Jin
    • Journal of Science Education
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    • v.36 no.1
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    • pp.153-165
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    • 2012
  • This study investigated the frequent mistakes and the causes of the alternative conceptions in the animal classification by using the questionnaire and interview with the middle school students (N=300). As results, some students have difficulties classifying suggested animals into vertebrates or invertebrates : snakes (31.7%), shrimps (28.3%), turtles (25.6%), frogs (24.7%), and starfish (10.7%) in order of precedence. These errors seemed to be caused by intuitive thinking over characteristics of physical motions and appearance of suggested animals, wrong inference from comparing to features of familiar animals and the lack of observation experience of the vertebrate backbone. Furthermore, the results showed that relatively many students made a mistake classifying subgroup members of vertebrates such as classifying salamanders into the class Reptilia (45.3%) and turtles into Amphibia (40.3%). It is likely that those errors are affected by ambiguousness of classification terminology (e.g. the term of Amphibia) and weak ability in relating the physiological and ecological feature to standard of classification feature. In addition, sociocultural factors could influence animal classification as 'bat in birds', 'whale in fish, and 'penguin in mammals'. The present study implied that teaching and learning animal classification may require an appropriate guide focused on activities to explore major characteristics used for the animal classification standard through providing more chances of animal observation rather than the cramming method of learning induced by technical memorizing.

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