Výsledky vyhledávání - "J.W. Farrent"

High-performance composites from low-cost plant primary cell walls

Autor: D.G. Hepworth, R.N. Hobson, J.W. Farrent, D.M. Bruce

Publikováno v: Composites Part A: Applied Science and Manufacturing. 36:1486-1493

Our aim was to develop means to produce purified cellulose cell wall fragments and cellulose microfibrils from primary cellular material at laboratory scale, to form novel composite materials with a range of matrix binders and to determine their tens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab5e9e7e20eb9ee11b5c6d841a3e309c
https://doi.org/10.1016/j.compositesa.2005.03.008

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The influence of hydration on the tensile and compressive properties of avian keratinous tissues

Autor: A. M. Taylor, Richard H. C. Bonser, J.W. Farrent

Publikováno v: Journal of Materials Science. 39:939-942

Despite recent research exploring the elastic properties of avian keratins, data on failure properties are less common in the literature. In this paper we present data on the failure properties and moduli of both avian feather and claw keratin in ten

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::841ef1815ac4c43b9f415b8725a58e04
https://doi.org/10.1023/b:jmsc.0000012925.92504.08

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Assessing the Frictional and Abrasion-resisting Properties of Hooves and Claws

Autor: A. M. Taylor, J.W. Farrent, Richard H. C. Bonser

Publikováno v: Biosystems Engineering. 86:253-256

Hoof abrasion and slips on floors are known to have negative effects on animal health and welfare. This paper describes a new design of test rig for use in a universal materials test machine. The rig enables the frictional and abrasion-resisting prop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e825e8bc46bd4e27c57a17fb274936d3
https://doi.org/10.1016/s1537-5110(03)00136-3

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The use of unretted hemp fibre in composite manufacture

Autor: R.N. Hobson, D.M. Bruce, J.W. Farrent, D.G. Hepworth

Publikováno v: Composites Part A: Applied Science and Manufacturing. 31:1279-1283

The usefulness of unretted hemp as a source of fibre for composite manufacture is investigated. A decortication machine was used to remove fibre from retted and unretted stems using two different decortication procedures, defined as ‘normal’ and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8741d5927021b6b63dacd054cd39c240
https://doi.org/10.1016/s1359-835x(00)00098-1

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Continuous Aerobic Treatment of Pig Slurry: Evaluation of Options based on Long-treatment Time and Two-stage Processing

Autor: C.H. Burton, J.W. Farrent

Publikováno v: Journal of Agricultural Engineering Research. 69:159-167

Aerobic treatment can be very effective in dealing with a wide range of pollution problems from pig slurry, but it is often not popular due to the high energy costs implied. Improvement in the process performance and lower costs are key requirements

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::262008a7f586fdb5004738743af1e456
https://doi.org/10.1006/jaer.1997.0237

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Influence of hydration on the mechanical performance of duck down feathers

Autor: J.W. Farrent, Richard H. C. Bonser

Publikováno v: British Poultry Science. 42:271-273

1. We report the first measurements to be made on the effects of hydration on the mechanical properties of commercially-prepared duck down feathers. Tensile tests were performed, to failure, on isolated barbs of down feathers at 50% RH and with fully

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::250156ffd49c4a58413a7f74002e10e3
https://doi.org/10.1080/00071660120048546

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Odour and ammonia emissions following the spreading of aerobically-treated pig slurry on grassland

Autor: B.F. Pain, V.R. Phillips, C.R. Clarkson, T.H. Misselbrook, Y.J. Rees, J.W. Farrent

Publikováno v: Biological Wastes. 34:149-160

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b33cae4b4d80c4a2b3bb3083dec0ef0
https://doi.org/10.1016/0269-7483(90)90015-k

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Emissions of nitrogen oxide gases during aerobic treatment of animal slurries

Autor: J.W. Farrent, R.W. Sneath, C.H. Burton

Publikováno v: Bioresource Technology. 45:233-235

Quantities of nitrous oxide, N 2 O, an important greenhouse gas, were found in the effluent gases from controlled continuous aerobic treatment of pig slurry. Where nitrifying-denitrifying conditions were encouraged (4-day treatment time and aeration

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d177ddbd19da6ad33bd41ab1d55644e
https://doi.org/10.1016/0960-8524(93)90117-t

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Etude de la contribution potentiel de la sédimentation sur le traitement aérobie du lisier de porc

Autor: J.W. Farrent, J. Martinez, C.H. Burton, R.W. Sneath

Publikováno v: Journal of Agricultural Engineering Research
Journal of Agricultural Engineering Research, Elsevier-Academic Press;Elsevier, 1995, 61 (2), pp.87-96
AGENG 94 international conference on agricultural engineering, Milano, ITA, 29 th August-1st September 1994
AGENG 94 international conference on agricultural engineering, Milano, ITA, 29 th August-1st September 1994, 1994, Italy. pp.351-358

The technique of aeration can only partly treat pig slurry because of its limited effect on much of the undissolved matter present. A complete treatment process may then be expected to include a physical clarification step. A series of aeration trial

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::886dbc61195983d29ac804e38511a701
https://hal.inrae.fr/hal-02581955

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