Results 61 to 70 of about 180,408 (214)

SPATIAL AND TEMPORAL DYNAMICS OF FINE FLUVIAL SEDIMENT TRANSFER: IMPLICATIONS FOR MONITORING AND MANAGEMENT OF UPLAND RIVER SYSTEMS [PDF]

, 2013
Although the impacts of changing land use on the magnitude and timing of erosion in lowland catchments are well documented, much less is known about the transfer dynamics of fine sediment through the upland hydrological networks.
PERKS, MATTHEW,THOMAS
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A fine resampling algorithm for general particle filters

, 2011
Resampling algorithm for particle filters aimed at solving particle degeneracy problem but causing sample impoverishment. To maintain the diversity of the particle system and thus enhance the accuracy of state estimation in the nonlinear/non-Gaussian ...
Cao Bei, LiuZhenTao, CaoBei, MaCaiWen(马彩文)   +3 more
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Damping properties and optical observation of particles behavior in particle dampers with particle diameters of sub-mm or less (The case of gravity direction vibration)

Nihon Kikai Gakkai ronbunshu
Particle dampers (PD) can be embedded in structures fabricated via selective laser melting (SLM) because the raw powder (particle diameter : several tens of micrometers) remains in closed spaces during SLM. However, most PD studies have focused on coarse
Takashi MASUTANI, Sunao TOMITA, Haruki SATO, Sachito NAKANO   +3 more
doaj   +1 more source

Classifying Aerosols Based on Fuzzy Clustering and Their Optical and Microphysical Properties Study in Beijing, China

Advances in Meteorology, 2017
Classification of Beijing aerosol is carried out based on clustering optical properties obtained from three Aerosol Robotic Network (AERONET) sites. The fuzzy c-mean (FCM) clustering algorithm is used to classify fourteen-year (2001–2014) observations ...
Wenhao Zhang, Hui Xu, Fengjie Zheng
doaj   +1 more source

The erodibility of fine sediment deposits in lowland chalk streams

, 2011
PhDLowland chalk streams in the UK are experiencing increased deposition of fine sediment due to changes in land-use practices, channel modifications, and groundwater abstraction.
Grabowski, Robert Carl
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Effect of magnetostatic interactions on the hysteresis parameters of single-domain and psuedo-single domain grains [PDF]

, 2003
From experiments it is known that magnetostatic interactions between grains strongly affect the magnetic behavior of samples. However, because of the difficulty in predicting the nonlinear behavior, the effect of interactions has been largely ignored ...
Davinder Virdee, Adrian Muxworthy, Williams, W., Wyn Williams, Muxworthy, A.R., Muxworthy, A., Williams, W.; id_orcid, Virdee, D.   +7 more
core   +1 more source

Effects of friction on the efficiency of open gradient magnetic separation in dry granular materials

Electrical engineering & Electromechanics
Introduction. Magnetic separation is one of the most effective and widely used techniques for the purification and enrichment of materials. It plays a crucial role in mineral processing, recycling, and environmental applications, where the separation ...
O. Belguet, R. Mehasni, A. Belounis, M. Ouili   +3 more
doaj   +1 more source

Particles induce apical plasma membrane enlargement in epithelial lung cell line depending on particle surface area dose

Respiratory Research, 2009
Background Airborne particles entering the respiratory tract may interact with the apical plasma membrane (APM) of epithelial cells and enter them.
Blank Fabian, Rothen-Rutishauser Barbara, Brandenberger Christina, Gehr Peter, Mühlfeld Christian   +4 more
doaj   +1 more source

Explaining global surface aerosol number concentrations in terms of primary emissions and particle formation [PDF]

, 2010
We synthesised observations of total particle number (CN) concentration from 36 sites around the world. We found that annual mean CN concentrations are typically 300–2000 cm -3 in the marine boundary layer and free troposphere (FT) and 1000–10 000 cm -3 ...
Mihalopoulos, Nikos, Wiedensohler, Alfred, Andrews, Elisabeth, J. Gras, A. Hamed, Mann, G.W., K. Sellegri, Baltensperger, Urs, Kivekäs, Niku, M. Komppula, A. Laaksonen, Mihalopoulos, Ninolaos, J. Merikanto, A. Wiedensohler, Sun, Junying, Harrison, Roy M., Mihalopoulos, N., Boy, M., Jennings, S. Gerard, Birmili, Wolfram, A. Minikin, P. Laj, Merikanto, J., Ogren, J. A., Ogren, John A., Laakso, Lauri, Weller, Rolf, S. G. Jennings, Reddington, C.L., Pickering, S., R. M. Harrison, Mann, G. W., Kulmala, Markku, Minikin, Andreas, Boy, Michael, Laaksonen, A., M. Kulmala, N. Kivekäs, O'Dowd, C., U. Baltensperger, Carslaw, K.S., L. Laakso, Ogren, J.A., Carslaw, K. S., R. Talbot, Spracklen, D.V., Reddington, Carly L., Talbot, R., K. S. Carslaw, M. Boy, Harrison, R. M.; id_orcid, Andrews, E., W. Birmili, Sellegri, Karine, Lihavainen, Heikki, Gras, J., Krejci, Radovan,, O'Dowd, Colin D., Spracklen, D. V., Sun, Youbin, Baltensperger, U., Krejci, Radek, O'Dowd, Collin D., Komppula, M., Sellegri, K., Talbot, Robert, Kouvarakis, Giorgos, Laj, P., G. W. Mann, Jennings, S.G., Hamed, A., Weingartner, E., Krejci, R., Carslaw, Kenneth S., Lihavainen, H., Wiedensohler, A., Harrison, R. M., Sun, J., Birmili, W., Mann, Graham W., Bonn, B., Kivekäs, N., Komppula, Mika, Spracklen, Dominick V., Merikanto, Joonas, Laj, Paolo, Hamed, Amar, Jennings, S. G., E. Weingartner, Weingartner, Ernest, Laakso, L., J. A. Ogren, Minikin, A., R. Krejci, Gras, John, S. Pickering, Reddington, C. L., Harrison, R.M., Jennings, Stephen G., Pickering, Steven, H. Lihavainen, B. Bonn, C. O'Dowd, Weller, R., Kulmala, M., N. Mihalopoulos, J. Sun, G. Kouvarakis, Kouvarakis, G., E. Andrews, D. V. Spracklen, Bonn, Boris, Lihavainen, H.Finnish Meteorol. Inst.,, Laaksonen, Ari, C. L. Reddington, Krejci, Radovan, Harrison, Roy Michael, R. Weller   +117 more
core   +1 more source

Investigation of the flotation behaviour of ball mill and IsaMill products

, 2012
Includes bibliographical references.Valuable minerals that are used in various aspects of everyday life are buried in fossilised storages below the ground in the earth's crust.
Khonthu, Tsepang
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