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- Elkind, J. (author), Blanton, E. (author), Denier van der Gon, H.A.C (author), Kleinberg, R. (author), Leemhuis, A.P. (author) article 2021
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Ringers, M. (author), Fritz, E.C. (author), Crowcombe, W.E. (author), de Man, H. (author), de Lange, T.J. (author), Hazelebach, R.L.M. (author), Meskers, A.J.H. (author), Otten, M.P.G. (author), Leemhuis, A.P. (author), Bell, D.A. (author)HAPS, a station located on an object at an altitude of 20 to 50 km and at a specified, nominal, fixed point relative to the Earth (ITU RR Vol I 1.66a). A HAPS can be a unmanned airplane, a balloon, or an airship. All require electrical power to keep themselves and their payload functional. Since HAPS operate at much lower altitudes than...other 2019
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Court, A.J. (author), Bezy, J.L. (author), Levelt, P. (author), Siegl, M. (author), Leemhuis, A.P. (author), van de Valk, N.C.J. (author), Veefkind, P. (author)The impact of NO2 and other atmospheric trace gases on health and the environment is now acknowledged by governments around the world. The sources, both natural and anthropogenic, have been shown to affect the quality of life due to low air quality in densely populated areas. Consequently, the need for accurate global NO2 measurements with high...conference paper 2018
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Siegl, M. (author), van der Valk, N.C.J. (author), Veefkind, P. (author), Caron, J.F. (author), Leemhuis, A.P. (author), Bezy, J.L. (author)The current paper introduces the novel `Compact NO2 Spectrometer', dedicated to facilitating future global NO2 remote sensing. It aims at a significantly smaller instrument size while looking to retain key performance parameters as established by TROPOMI. Its compact size will enable the instrument to be compatible with a multitude of different...conference paper 2018
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van der Linden, R.D. (author), Leemhuis, A.P. (author), TNO Industrie en Techniek (author)Increasingly the upstream oil & gas industry is using active flow control (e.g. feedback loops) or passive flow control (e.g. passive ICD) technologies to optimize asset production. They are used, for example, to commingle production, stabilize production in case of water or gas breakthrough, and to mitigate the effect of slugging in wells....conference paper 2010
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Leemhuis, A.P. (author), Nennie, E.D. (author), Belfroid, S.P.C. (author), Alberts, G.J.N. (author), Peters, E. (author), Joosten, G.J.P. (author), TNO Industrie en Techniek (author)A strong increase in gas inflow due to gas coning and the resulting bean-back because of Gas to Oil Ratio (GOR) constraints can severely limit oil production and reservoir drive energy. In this paper we will use a coupled reservoir-well model to demonstrate that oil production can be increased by using controlled inflow from a gas cone as a...conference paper 2008