• Title/Summary/Keyword: feed processing technologies

Search Result 10, Processing Time 0.029 seconds

Effects of Expanding Feed Processing Technologies on Egg Characteristic and Nutrient Digestibility in Laying Hens (Expanding 사료 가공 기술이 산란계의 계란 품질 및 영양소 소화율에 미치는 효과)

  • Yoo J.S.;Chae S.J.;Park S.E.;Jang H.D.;Seok H.B.;Kim I.H.;Kim Y.C.
    • Korean Journal of Poultry Science
    • /
    • v.33 no.2
    • /
    • pp.127-131
    • /
    • 2006
  • This study was conducted to investigate the effects of expanding feed processing technologies on the egg characteristics and nutrient digestibility in laying hens. A total of two hundred seventy laying hens were randomly allocated into three treatments with fifteen replications for six weeks. Dietary treatments include 1) MS(mash), 2) EC(expanded crumble) and 3) EP(expanded pellet). In the egg production, the EC and EP treatments were significantly higher than MS treatment(p<0.05). However, no significant difference was founded in egg weight(p>0.05). Egg shell breaking was increased in EC and EP treatments compared with MS treatment(p<0.05), however, egg shall thickness showed no significant difference(p>0.05). Egg production and egg shell breaking were significantly higher in EC and EP treatments than MS treatment(p<0.05), but egg weight and egg shell thickness were no significantly difference among treatment(p<0.05). Yolk color was increased in EC treatment compared with other treatments(p<0.05). Also, yolk index was significantly improved in EC and EP treatments compared with MS treatment(p<0.05). Haugh unit was increased in EC treatment compared with MS treatment(p<0.05). EC treatment had improved DM, Ca and P digestibility. In conclusion, Expanded crumble and pellet processing could improve the egg characteristic and nutrient digestibility in laying hens.

Coating and Etching Technologies for Indirect Laser processing of Printing Roll (인쇄 롤의 간접식 레이저 가공을 위한 코팅과 에칭 기술)

  • Lee, Seung-Woo;Kim, Jeong-O;Kang, HeeShin
    • Laser Solutions
    • /
    • v.16 no.4
    • /
    • pp.12-16
    • /
    • 2013
  • For mass production of electronic devices, the processing of the printing roll is one of the most important key technologies for printed electronics technology. A roll of printing process, the gravure printing that is used to print the electronic device is most often used. The indirect laser processing has been used in order to produce printing roll for gravure printing. It consists of the following processing that is coating of photo polymer or black lacquer on the surface of printing roll, pattering using a laser beam and etching process. In this study, we have carried out study on the coating and etching for $25{\mu}m$ line width on the printing roll. To do this goals, a $4{\mu}m$ coating thickness and 20% average coating thickness of the coating homogeneity of variance is performed. The factors to determine the thickness and homogeneity are a viscosity of coating solution, the liquid injection, the number of injection, feed rate, rotational speed, and the like. After the laser patterning, a line width of $25{\mu}m$ or less was confirmed to be processed through etching and the chromium plating process.

  • PDF

ELECTROCHEMICAL PROCESSING OF USED NUCLEAR FUEL

  • Goff, K.M.;Wass, J.C.;Marsden, K.C.;Teske, G.M.
    • Nuclear Engineering and Technology
    • /
    • v.43 no.4
    • /
    • pp.335-342
    • /
    • 2011
  • As part of the Department of Energy's Fuel Cycle Research and Development Program an electrochemical technology employing molten salts is being developed for recycle of metallic fast reactor fuel and treatment of light water reactor oxide fuel to produce a feed for fast reactors. This technology has been deployed for treatment of used fuel from the Experimental Breeder Reactor II (EBR-II) in the Fuel Conditioning Facility, located at the Materials and Fuel Complex of Idaho National Laboratory. This process is based on dry (non-aqueous) technologies that have been developed and demonstrated since the 1960s. These technologies offer potential advantages compared to traditional aqueous separations including: compactness, resistance to radiation effects, criticality control benefits, compatibility with advanced fuel types, and ability to produce low purity products. This paper will summarize the status of electrochemical development and demonstration activities with used nuclear fuel, including preparation of associated high-level waste forms.

Effect of temperature and blank holder force on non-isothermal stamp forming of a self-reinforced composite

  • Kalyanasundaram, Shankar;Venkatesan, Sudharshan
    • Advances in aircraft and spacecraft science
    • /
    • v.3 no.1
    • /
    • pp.29-43
    • /
    • 2016
  • Composite materials are rapidly gaining popularity as an alternative to metals for structural and load bearing applications in the aerospace, automotive, alternate energy and consumer industries. With the advent of thermoplastic composites and advances in recycling technologies, fully recyclable composites are gaining ground over traditional thermoset composites. Stamp forming as an alternative processing technique for sheet products has proven to be effective in allowing the fast manufacturing rates required for mass production of components. This study investigates the feasibility of using the stamp forming technique for the processing of thermoplastic, recyclable composite materials. The material system used in this study is a self-reinforced polypropylene composite material (Curv$^{(R)}$). The investigation includes a detailed experimental study based on strain measurements using a non-contact optical measurement system in conjunction with stamping equipment to record and measure the formability of the thermoplastic composites in real time. A Design of Experiments (DOE) methodology was adopted to elucidate the effect of process parameters that included blank holder force, pre heat temperature and feed rate on stamp forming. DOE analyses indicate that feed rate had negligible influence on the strain evolution during stamp forming and blank holder force and preheat temperature had significant effect on strain evolution during forming.

Intelligent system for robotic deburring (디버링용 지능 로보트 시스템에 관한 연구)

  • 박경택;최재찬;한장남;이정규;김무용;정병균
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1993.10a
    • /
    • pp.256-263
    • /
    • 1993
  • The integration of deburring robots into product quality and productivity impact the industrial. In this paper the intelligent system of robotic deburring is proposed integrated with robot system, image processing system, force sensor system and host PC. The size, position, recognition of burr is determined by the information that the image processing system processed. The feed velocity of cutting tool is controlled by the information that the force sensor system processed. The integration of these information can remove the uncertainty of the information of deburring on the cutting path. The result of these technologies is useful for the development of the factory automation and automatic inspection equipments.

  • PDF

Study on Effects of Direct Laser Melting Process Parameters on Deposition Characteristics of AlSi12 powders (AlSi12 분말의 직접 레이저 용융 적층 시 공정 조건에 따른 적층 특성에 관한 연구)

  • Seo, J.Y.;Yoon, H.S.;Lee, K.Y.;Shim, D.S.
    • Transactions of Materials Processing
    • /
    • v.27 no.5
    • /
    • pp.314-322
    • /
    • 2018
  • AlSi12 is a heat-resistant aluminum alloy that is lightweight, corrosion-resistant, machinable and attracting attention as a functional material in aerospace and automotive industries. For that reason, AlSi12 powder has been used for high performance parts through 3D printing technology. The purpose of this study is to observe deposition characteristics of AlSi12 powder in a direct energy deposition (DED) process (one of the metal 3D printing technologies). In this study, deposition characteristics were investigated according to various process parameters such as laser power, powder feed rate, scan speed, and slicing layer thickness. In the single track deposition experiment, an irregular bead shape and balling or humping of molten metal were formed below a laser power of 1,000 W, and the good-shaped bead was obtained at 1.0 g/min powder feed rate. Similar results were observed in multi-layer deposition. Observation of deposited height after multi-layer deposition revealed that over-deposition occurred at all conditions. To prevent over-deposition, slicing layer thickness was experimentally determined at given conditions. From these results, this study presented practical conditions for good surface quality and accurate geometry of deposits.

A Study on the Manufacturing Rapid Prototype Using Bronze (Bronze를 이용한 쾌속조형제조에 대한 연구)

  • 전병철;김재도
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 1995.10a
    • /
    • pp.204-209
    • /
    • 1995
  • The implementation of rapid prototyping technologies has been developed for automotive engineering by utilizing concurrent engineering principes integrated with slective laser sintering. The Selective Laser Sintering, in which a part is generated in layers form powder using a computer-controlled laser scanning apparatus and power feed system. An over view of the basic principles of SLS Machine operation is given. Binding mechanisms are described for power which becomes thermally activated bye the scanning laser beam; viscous flow and melting of a low-melting-point phase in powder. The production of parts from metal is described, including post processing to improve structural integrity and induce a transformation.

  • PDF

The Similarity of the Image Comparison System utilizing OpenCV (OpenCV를 활용한 이미지 유사성 비교 시스템)

  • Ban, Tae-Hak;Bang, Jin-Suk;Yuk, Jung-Soo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2016.05a
    • /
    • pp.834-835
    • /
    • 2016
  • In recent years, advances in technology, IT is rapidly growing. Accordingly, real time image processing and multiple platforms, providing compatibility with OpenCV for image processing technology research on actively in progress. At present, different, comparing the images to determine the similarity is low, the system will match the rate of people using the analogue figures to determine the system is for the most part. In this paper, Template Matching of OpenCV and Feature Matching utilizing different images to determine the similarity between digital values for the system. A comparison of the features of a specific point on the screen the image to extract the same feature in a different size, you can compare the features of the target image recognized as compared to three historic castle in comparison, verification. This is the voice and image recognition and analysis, check the matching rate readings than in Zhengzhou treatment techniques are available. The future of forensic and other image processing technologies for OpenCV studies will be needed to feed.

  • PDF

Current situation and future trends for beef production in the United States of America - A review

  • Drouillard, James S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.31 no.7
    • /
    • pp.1007-1016
    • /
    • 2018
  • USA beef production is characterized by a diversity of climates, environmental conditions, animal phenotypes, management systems, and a multiplicity of nutritional inputs. The USA beef herd consists of more than 80 breeds of cattle and crosses thereof, and the industry is divided into distinct, but ofttimes overlapping sectors, including seedstock production, cow-calf production, stocker/backgrounding, and feedlot. Exception for male dairy calves, production is predominantly pastoral-based, with young stock spending relatively brief portions of their life in feedlots. The beef industry is very technology driven, utilizing reproductive management strategies, genetic improvement technologies, exogenous growth promoting compounds, vaccines, antibiotics, and feed processing strategies, focusing on improvements in efficiency and cost of production. Young steers and heifers are grain-based diets fed for an average of 5 months, mostly in feedlots of 1,000 head capacity or more, and typically are slaughtered at 15 to 28 months of age to produce tender, well-marbled beef. Per capita beef consumption is nearly 26 kg annually, over half of which is consumed in the form of ground products. Beef exports, which are increasingly important, consist primarily of high value cuts and variety meats, depending on destination. In recent years, adverse climatic conditions (i.e., draught), a shrinking agricultural workforce, emergence of food-borne pathogens, concerns over development of antimicrobial resistance, animal welfare/well-being, environmental impact, consumer perceptions of healthfulness of beef, consumer perceptions of food animal production practices, and alternative uses of traditional feed grains have become increasingly important with respect to their impact on both beef production and demand for beef products. Similarly, changing consumer demographics and globalization of beef markets have dictated changes in the types of products demanded by consumers of USA beef, both domestically and abroad. The industry is highly adaptive, however, and responds quickly to evolving economic signals.

Study on As Removal from Mine Tailing using MGS Gravity Separator (다중비중선별기를 이용한 광물찌꺼기로부터 비소제거 연구)

  • Kim, Jun-Hee;Kim, Min-Gyu;Kim, Woo-Ram;Han, Oh-Hyung
    • Resources Recycling
    • /
    • v.23 no.5
    • /
    • pp.36-43
    • /
    • 2014
  • It comtained various kinds of heavy metal in beneficiatian tailing and in order to eliminate the heavy metals, various technologies have been researched, But there are a limits because many problems and restrictions are accompanied. Therefore, in this study, in order to solve this problem, It was performed gravity separation using melti-gravity seperator (MGS) to remove As contained in tailing, which can sort out even the fine particle. It was attempted a study to remove As, which is a kind of heavy metals, by MGS gravity separation and verified the impact by slope, wash water, pulp density, rotational speed and feed rate. In the results of performing gravity concentration under the condition with the MGS slope of $3^{\circ}$, wash water of 5 l/mm, pulp density of 30%, rotational speed of 208 rpm, and the feed rate of 265.24 g/mm, the As removal rate of 88.21% and yield of 92.25% were obtained.