Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Peter, Kai"'
Publikováno v:
Cleaner Engineering and Technology, Vol 4, Iss , Pp 100263- (2021)
Animal manure is a significant source of ammonia, methane, hydrogen sulfide, and odor emissions. Manure acidification to pH 5.5 using sulfuric acid (H2SO4) is an approved method for reducing ammonia and methane emissions from barns and retaining bioa
Externí odkaz:
https://doaj.org/article/d1077211c343474588df87396e69f09c
Autor:
Peter Kai Chai Tay, Boh Boi Wong, Azaizah Binte Mohamed Afif, Mabel Qi He Leow, Lester Chee Hao Leong
Aim: To test the feasibility of our ultrasound protocol in evaluating the physiological changes during breast milk expression, and the impact of breast massage on temperature, blood flow and tension.Method: Breast massage was used for the right breas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e1f1748227990b5881c64f1432aa370
https://doi.org/10.21203/rs.3.rs-218330/v1
https://doi.org/10.21203/rs.3.rs-218330/v1
Publikováno v:
Fuchs, A, Dalby, F R, Liu, D, Kai, P & Feilberg, A 2021, ' Improved effect of manure acidification technology for gas emission mitigation by substituting sulfuric acid with acetic acid ', Cleaner Engineering and Technology, vol. 4, 100263 . https://doi.org/10.1016/j.clet.2021.100263
Cleaner Engineering and Technology, Vol 4, Iss, Pp 100263-(2021)
Cleaner Engineering and Technology, Vol 4, Iss, Pp 100263-(2021)
Animal manure is a significant source of ammonia, methane, hydrogen sulfide, and odor emissions. Manure acidification to pH 5.5 using sulfuric acid (H 2SO 4) is an approved method for reducing ammonia and methane emissions from barns and retaining bi
Autor:
Bjarne Bjerg, Peter Kai
Publikováno v:
2019 Boston, Massachusetts July 7- July 10, 2019.
Two-dimensional CFD modelling was used to gain knowledge on how the presence of laying pigs affects the heat transfer in heated or cooled concrete solid floor laying areas. The study included three different floor types; A) an insulated concrete grou
Manure belts for harvesting urine and feces separately and improving air quality in swine facilities
Autor:
E. van Heugten, M.H.J.G. van Kempen, R.P. Burnette, T. A. T. G. van Kempen, J. B. Koger, Peter Kai, B.K. O’Brien
Publikováno v:
Livestock Science. 162:214-222
Modern swine facilities have not been designed to maximize manure value nor to minimize NH 3 emission. These benefits can possibly be achieved by harvesting urine and feces separately using a conveyor belt placed at a 4° angle beneath the slats. Uri
Autor:
Huehns, Tanya Y, Krausz, Eberhard, Mrochen, Stefan, Schmid, Matthias, Engelmann, Markus G, Esin, Serap, Schrittenloher, Peter-Kai, Höfling, Berthold, Günzburg, Walter H, Nikol, Sigrid *
Publikováno v:
In Atherosclerosis 1999 144(1):135-150
Publikováno v:
Wu, W, Kai, P & Zhang, G 2012, ' An assessment of a partial pit ventilation system to reduce emission under slatted floor – Part 1: Scale model study ', Computers and Electronics in Agriculture, vol. 83, pp. 127–133 . https://doi.org/10.1016/j.compag.2012.01.008
Emissions of ammonia and greenhouse gases from naturally ventilated livestock houses cause contamination of the surrounding atmospheric environment. Requests to reduce ammonia emissions from livestock farms are growing in Denmark. It is assumed that
Publikováno v:
Saha, C K, Zhang, G & Kai, P 2012, ' Modeling Ammonia Mass Transfer Process from a Model Pig House Based on Ventilation Characteristics ', American Society of Agricultural and Biological Engineers. Transactions, vol. 55, no. 4, pp. 1597-1607 . https://doi.org/10.13031/2013.42235)
Scopus-Elsevier
Scopus-Elsevier
Airflow characteristics above the emission surface inside animal houses play an important role in gaseous and odor emissions. The influence of airflow characteristics, i.e., air velocities and turbulence intensities, on ammonia mass transfer processe
Publikováno v:
Saha, C K, Zhang, G, Kai, P & Bjerg, B 2010, ' Effects of a partial pit ventilation system on indoor air quality and ammonia emission from a fattening pig room ', Biosystems Engineering, vol. 105, no. 3, pp. 279-287 . https://doi.org/10.1016/j.biosystemseng.2009.11.006
The investigation was based on a hypothesis that applying an extra pit ventilation system may remove the highly concentrated gases and odours from the headspace above the liquid manure surface. This would improve air quality in the animal occupation
Publikováno v:
Morsing, S, Strøm, J S, Zhang, G & Kai, P 2008, ' Scale model experiments to determine the effects of internal airflow and floor design on gaseous emissions from animal houses ', Biosystems Engineering, vol. 99, no. 1, pp. 99-104 . https://doi.org/10.1016/j.biosystemseng.2007.09.028
Odours and gases emitted from animal houses are strongly related to airflows. Knowledge of the exchange mechanisms between air and the manure surface in the slurry pit, and between air and the soiled surfaces and animals within the building may lead