Search Results - "Bruinsma, S L"

Wave-driven variability in the ionosphere-thermosphere-mesosphere system from TIMED observations: What contributes to the "wave 4"? by Oberheide, J., Forbes, J. M., Zhang, X., Bruinsma, S. L.

“…Numerous observations and model studies made during the past 5 years have unequivocally revealed that the ionosphere and thermosphere owe a considerable amount…”
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Climatology of upward propagating diurnal and semidiurnal tides in the thermosphere by Oberheide, J., Forbes, J. M., Zhang, X., Bruinsma, S. L.

“…A major challenge in delineating and understanding the “space weather” of the ionosphere‐thermosphere system is the lack of global tidal observations in the…”
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Long‐Term Variability of Mars' Exosphere Density Based on Precise Orbital Analysis of Mars Reconnaissance Orbiter and Mars Odyssey by Forbes, J. M., Bruinsma, S. L., Zhang, X., Marty, J.‐C., Laurens, S.

“…The variability of Mars exosphere over monthly to solar‐cycle scales at 251 and 412 km altitude is quantified by analysis of 41‐Ls mean densities derived from…”
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Tropospheric tides from 80 to 400 km: Propagation, interannual variability, and solar cycle effects by Oberheide, J., Forbes, J. M., Häusler, K., Wu, Q., Bruinsma, S. L.

“…Recent observations and model simulations demonstrate unequivocally that non‐Sun‐synchronous (nonmigrating) tides due to deep tropical convection produce large…”
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Wave coupling between the lower and middle thermosphere as viewed from TIMED and GOCE by Gasperini, F., Forbes, J. M., Doornbos, E. N., Bruinsma, S. L.

“…Vertical coupling between the lower and middle thermosphere due to the eastward propagating diurnal tide with zonal wave number 3 (DE3) and the 3.5 day…”
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Membrane Retrofit Option for Paraffin/Olefin SeparationA Technoeconomic Evaluation by Motelica, Anatolie, Bruinsma, Odolphus S. L, Kreiter, Robert, den Exter, Marcel, Vente, Jaap F

“…The technical and economic feasibility of a hybrid separation process in which gas separation membranes are combined with conventional distillation are…”
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Validation of GOCE densities and evaluation of thermosphere models by Bruinsma, S L, Doornbos, E, Bowman, B R

“…Atmospheric densities from ESA's GOCE satellite at a mean altitude of 270km are validated by comparison with predictions from the near real time model HASDM…”
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Depolymerization of clean unfilled PTFE waste in a continuous process by Van Der Walt, I. J., Bruinsma, O. S. L.

“…A continuous process is described whereby waste PTFE was converted into tetrafluoroethylene (C2F4, TFE), hexafluoroethane (C2F6, HFE), hexafluoropropylene…”
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Synthetic thermosphere winds based on CHAMP neutral and plasma density measurements by Gasperini, F., Forbes, J. M., Doornbos, E. N., Bruinsma, S. L.

“…Meridional winds in the thermosphere are key to understanding latitudinal coupling and thermosphere‐ionosphere coupling, and yet global measurements of this…”
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First ever in situ observations of Venus’ polar upper atmosphere density using the tracking data of the Venus Express Atmospheric Drag Experiment (VExADE) by Rosenblatt, P., Bruinsma, S.L., Müller-Wodarg, I.C.F., Häusler, B., Svedhem, H., Marty, J.C.

“…► Venus’ polar thermosphere densities are derived from the Venus Express spacecraft tracking data. ► These data permit to reconstruct the drag-induced orbital…”
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The continuous depolymerization of filled polytetrafluoroethylene with a continuous process by van der Walt, I. J., Grunenburg, A. T., Nel, J. T., Maluleke, G. G., Bruinsma, O. S. L.

“…A new method for beneficiating unfilled as well as filled polytetrafluoroethylene (PTFE) waste has been developed. This process does not use any carrier gas…”
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An assessment of new satellite total density data for improving upper atmosphere models by Bruinsma, S.L, Exertier, P, Biancale, R

“…The DTM series of atmospheric density models ( Barlier et al., 1977; Berger et al., 1998) have been developed for atmospheric constituent representation and…”
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The structured heat integrated distillation column by Bruinsma, O.S.L., Krikken, T., Cot, J., Sarić, M., Tromp, S.A., Olujić, Ž., Stankiewicz, A.I.

“…This paper describes a unique, proof of the principle test facility and the results of a study carried out to provide experimental evidence needed to properly…”
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Dynamic behavior of hydraulic wash columns by van Oord-Knol, L., Bruinsma, O. S. L., Jansens, P. J.

“…Hydraulic wash columns are well suited for solid–liquid separation and ultrapurification in melt‐suspension crystallization. For steady operation of a…”
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Effect of compressibility on performance of hydraulic wash columns by van Oord-Knol, L., Bruinsma, O. S. L., Jansens, P. J.

“…In a hydraulic wash column the solid crystals are separated from the mother liquor by filtration in the top section of the column. Remaining impurities are…”
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Thermal reduction of barium sulphate with carbon monoxide—A thermogravimetric study by Hlabela, P.S., Neomagus, H.W.J.P., Waanders, F.B., Bruinsma, O.S.L.

“…The kinetic parameters of the reduction of barium sulphate to barium sulphide using carbon monoxide fractions of 2.4–9.6% and temperatures of 850–1000 °C,…”
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Impurity Effects on the Crystallization Kinetics of Ampicillin by Ottens, M, Lebreton, B, Zomerdijk, M, Rijkers, M. P. W. M, Bruinsma, O. S. L, van der Wielen, L. A. M

“…Impurities have a clear negative influence on the nucleation and growth rate kinetics of the semisynthetic antibiotic ampicillin (AMPI) crystallization. The…”
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Climatology of upward propagating diurnal and semidiurnal tides in the thermosphere: CLIMATOLOGY OF DIURNAL AND SEMIDIURNAL TIDES by Oberheide, J., Forbes, J. M., Zhang, X., Bruinsma, S. L.

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Wave-driven variability in the ionosphere-thermosphere-mesosphere system from TIMED observations: What contributes to the “wave 4”?: “WAVE 4” VARIABILITY IN THE ITM by Oberheide, J., Forbes, J. M., Zhang, X., Bruinsma, S. L.

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Properties of traveling atmospheric disturbances (TADs) inferred from CHAMP accelerometer observations by Bruinsma, Sean L., Forbes, Jeffrey M.

“…Densities derived from accelerometer measurements on the CHAMP satellite near 400 km are used to statistically establish characteristics of large-scale (>1000…”
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