Searched for: subject%3A%22Mass%255C+transport%22
(1 - 20 of 36)

Pages

document
Ramdin, M. (author), Vlugt, T.J.H. (author), Selvaraj, S. (author)
Mass transport of different species plays a crucial role in electrochemical conversion of CO (Formula presented.) due to the solubility limit of CO (Formula presented.) in aqueous electrolytes. In this study, we investigate the transport of CO (Formula presented.) and other ionic species through the electrolyte and the membrane, and its...
journal article 2022
document
Ditmar, P.G. (author)
A novel technique has been developed to assess noise levels in GRACE-based mass anomaly time-series when the true signal is not known. The technique is based on computing an optimal combination of analyzed time-series in the presence of a regularization. To find the optimal weights associated with individual time-series, variance component...
journal article 2022
document
Hemamalini, S.S. (author)
Water electrolysis is a popular energy storage technique used in tandem with many renewable sources to convert the generated energy into storeable hydrogen. The efficiency of water electrolyzers is greatly affected by overpotential losses. Bubble evolution is a unique characteristic of flows in water electrolysis. The evolution of bubbles alter...
master thesis 2021
document
Ouro, Pablo (author), Juez, Carmelo (author), Franca, M.J. (author)
Large-Eddy Simulations (LES) are used to investigate the governing processes involved in mass and momentum transfer between the flow in the main channel and symmetrically-distributed lateral bank cavities. In-cavity free-surface velocities, based on laboratory measurements made in an open channel, are used to validate the numerical results. A...
journal article 2020
document
Pail, R. (author), Bamber, J. (author), Biancale, R. (author), Bingham, R. (author), Braitenberg, C. (author), Flechtner, F. (author), Gruber, T. (author), Güntner, A. (author), Savenije, Hubert (author)
As changes in gravity are directly related to mass variability, satellite missions observing the Earth's time varying gravity field are a unique tool for observing mass transport processes in the Earth system, such as the water cycle, rapid changes in the cryosphere, oceans, and solid Earth processes, on a global scale. The observation of...
journal article 2019
document
Brown, Jenna A. (author), MacMahan, Jamie H. (author), Reniers, A.J.H.M. (author), Thornton, Ed B. (author), Shanks, Alan L. (author), Morgan, Steven G. (author), Gallagher, Edie L. (author)
Surfzone mixing and transport on a sandy, steep (∼1/8 slope), reflective beach at Carmel River State Beach, California, are described for a range of wave and alongshore flow conditions. Depth-limited wave breaking occurred close to the shore due to the steepness of the beach, creating a narrow surf/swash zone (∼10 m wide). Fluorescent...
journal article 2019
document
Ditmar, P.G. (author)
Time-varying Stokes coefficients estimated from GRACE satellite data are routinely converted into mass anomalies at the Earth’s surface with the expression proposed for that purpose by Wahr et al. (J Geophys Res 103(B12):30,205–30,229, 1998). However, the results obtained with it represent mass transport at the spherical surface of 6378 km...
journal article 2018
document
Ditmar, P.G. (author), Tangdamrongsub, N. (author), Ran, J. (author), Klees, R. (author)
We propose a technique to regularize a GRACE-based mass-anomaly time-series in order to (i) quantify the Standard Deviation (SD) of random noise in the data, and (ii) reduce the level of that noise. The proposed regularization functional minimizes the Month-to-month Year-to-year Double Differences (MYDD) of mass anomalies. As such, it does...
journal article 2018
document
Zhang, Hongyue (author), Sun, Y. (author)
Annual cycles in the geocenter motion time series are primarily driven by mass changes in the Earth’s hydrologic system, which includes land hydrology, atmosphere, and oceans. Seasonal variations of the geocenter motion have been reliably determined according to Sun et al. (J Geophys Res Solid Earth 121(11):8352–8370, 2016) by combining the...
journal article 2018
document
Sun, Y. (author)
Geocenter motion and changes in the Earth’s dynamic oblateness (J2) are of great importance in many applications. Among others, they are critical indicators of largescale mass redistributions, which is invaluable to understand ongoing global climate change. The revolutionary Gravity Recovery and Climate Experiment (GRACE) satellite mission...
doctoral thesis 2017
document
Teixeira Encarnação, J. (author)
The main objective of the thesis is to identify the optimal set-up for future satellite gravimetry missions aimed at monitoring mass transport in the Earth’s system.The recent variability of climatic patterns, the spread of arid regions and associ- ated changes in the hydrological cycle, and vigorous modifications in the ice coverage at polar...
doctoral thesis 2015
document
Sun, Y. (author), Ditmar, P. (author), Riva, R. (author)
A new methodology is proposed to estimate changes in the Earth’s dynamic oblateness (?J2 or equivalently, ?5??C20) on a monthly basis. The algorithm uses monthly Gravity Recovery and Climate Experiment (GRACE) gravity solutions, an ocean bottom pressure model and a glacial isostatic adjustment (GIA) model. The resulting time series agree...
journal article 2015
document
Rudneva, M. (author), Kozlova, T. (author), Zandbergen, H.W. (author)
Scanning transmission electron microscopy (STEM) imaging is applied to analyze the electromigration-induced thickness variations of thin polycrystalline films, It is shown that a high angle annular dark field (HAADF) detector is required to minimize the effect of diffraction contact. A further reduction of the diffraction contrast can be...
journal article 2014
document
Ditmar, P. (author), Teixeira da Encarnacao, J. (author), Hashemi Farahani, H. (author)
Spectral analysis of data noise is performed in the context of gravity field recovery from inter-satellite ranging measurements acquired by the satellite gravimetry mission GRACE. The motivation of the study is two-fold: (i) to promote a further improvement of GRACE data processing techniques and (ii) to assist designing GRACE follow-on missions...
journal article 2012
document
J.J. Wolmarans, J.J. (author), Ferreira, J.A. (author)
At the hand of a case study alternative energy sources, methods of transportation and their effect on the electricity grid oncefossilfuels have been depleted is discussed. Three methods of sustainable transport are presented. The energy requirement for each is calculated as well as the requirements from the electricity grid for traveling a 200km...
conference paper 2007
document
Arentz, L. (author), Boon, J.G. (author)
report 2006
document
Arentz, L. (author), Boon, J.G. (author), Gils, J.A.G. van (author), Boogaard, H.F.P. van den (author)
report 2006
document
Rohde, M. (author)
Laser surface melting and alloying are important techniques to improve the properties of a material locally without affecting the bulk. In ceramic components these methods can be used to optimise the fracture toughness, friction and wear but also the thermal and electrical conductivity [1]. In order to predict the results of the modification...
conference paper 2006
document
Kester, J.A.T.M. van (author), Uittenbogaard, R.E. (author), Goede, E.D. de (author)
report 1997
document
Woerlee, G.F. (author)
doctoral thesis 1997
Searched for: subject%3A%22Mass%255C+transport%22
(1 - 20 of 36)

Pages