Results 21 to 30 of about 6,765,814 (297)

Performance of a building integrated photovoltaic/thermal (BIPVT) solar collector [PDF]

, 2009
The idea of combining photovoltaic and solar thermal collectors (PVT collectors) to provide electrical and heat energy is an area that has, until recently, received only limited attention.
Carson, James K., Duke, Mike, Morrison, G. L., Anderson, Timothy Nicholas   +3 more
core   +1 more source

Major Δ14C excursions during the late glacial and early Holocene: changes in ocean ventilation or solar forcing of climate change? [PDF]

, 2003
The atmospheric 14C record during the Late Glacial and the early Holocene shows sharp increases simultaneous with cold climatic phases. These increases in the atmospheric 14C content are usually explained as the effect of reduced oceanic CO2 ventilation ...
Geel, B. van, Renssen, H, van der Plicht, Johannes, van der Plicht, J., Renssen, Hans,, Geel, Bas van,, Plicht, J. van der, Renssen, H., van Geel, B., Plicht, Johannes van der,   +9 more
core   +1 more source

A forecast of solar activity [PDF]

Journal of Geophysical Research, 1945
I WISH to direct attention to the fact that a relatively long period of intensive solar activity seems to be imminent. If this should be the case, the coming years will probably be very suitable for studying possible relations between sunspots and such terrestrial phenomena as are supposed to be allied to solar activity.
openaire   +1 more source

An oriented-design simplified model for the efficiency of a flat plate solar air collector [PDF]

, 2010
In systems design, suitably adapted physical models are required. Different modelling approaches for a solar air collector were studied in this paper. First, a classical model was produced, based on a linearization of the conservation of energy equations.
LUNA, David, Jean-Pierre Nadeau, Yves Jannot, JANNOT, Yves, David Luna, NADEAU, Jean-Pierre   +5 more
core   +1 more source

Gossamer roadmap technology reference study for a solar polar mission [PDF]

, 2013
A technology reference study for a solar polar mission is presented. The study uses novel analytical methods to quantify the mission design space including the required sail performance to achieve a given solar polar observation angle within a given ...
Finsterle, W, Seboldt W., Ruedeger Reinhard, W. Seboldt, G. Mengali, Solanki, S. K., Finsterle W., Appourchaux, T., McGrath C., Dachwald, Bernd (Prof. Dr.-Ing.), McGrath, C., C. R. McInnes, McInnes, C.R., McInnes C. R., M. Macdonald, T. Appourchaux, McInnes C., Seboldt, Wolfgang, Sekii T., McInnes, Colin, C. McGrath, Reinhard R., Wimmer Schweingruber R., Wimmer-Schweingruber, R. F., Sekii, T., Velli, M., Liewer, P.C., L. Gizon, Appourchaux, T, Velli, M, P. C. Liewer, Seboldt, W., Wimmer-Schweingruber, R.F., Wimmer Schweingruber R. F., W. Finsterle, McGrath, Ciara, Gizon, L, Macdonald, M., McInnes, Colin R., Solanki S., Velli M., Sekii, T, S. K. Solanki, Peter Spietz, M. Velli, Liewer, P. C., T. Sekii, Gizon L., Liewer P., B. Dachwald, Finsterle, W., Appourchaux T., Mengali, Giovanni, Mengali, G., Liewer P. C., Dachwald B., Spietz, Peter, Spietz P., McGrath, Ciara; id_orcid, Solanki, S.K., Dachwald, B., R. F. Wimmer-Schweingruber, Macdonald, Malcolm, Macdonald M., Reinhard, Ruedeger, Gizon, L.   +65 more
core   +1 more source

Bulk plasma properties at geosynchronous orbit. [PDF]

, 2005
We present a comprehensive study of plasma properties at geosynchronous orbit for electron and ion energies between ∼1 eV and ∼45 keV, between 1990 and 2001.
Liemohn, M. W., Zhang, J. C., Denton, Michael H., Korth, H., Thomsen, M. F., Lynch, S.   +5 more
core   +5 more sources

Solar activity

Eos, Transactions American Geophysical Union, 1991
Perhaps the most newsworthy item of recent times concerning solar activity is its unprecedented strength during the rising phase of its current 11‐year cycle. Examples of its potency include a major, well‐observed solar flare in March 1989 that launched an unusually powerful blast wave that, hitting Earth, caused spectacular low‐latitude auroras and ...
openaire   +1 more source

Solar wind dependence of ion parameters in the earth's magnetospheric region calculated from CLUSTER observations [PDF]

, 2008
Moments calculated from the ion distributions (~0–40 keV) measured by the Cluster Ion Spectrometry (CIS) instrument are combined with data from the Cluster Flux Gate Magnetometer (FGM) instrument and used to characterise the bulk properties of the plasma
Denton, M. H., Taylor, M. G. G. T.
core   +5 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

The influence of solar wind variability on magnetospheric ULF wave power [PDF]

, 2015
Magnetospheric ultra-low frequency (ULF) oscillations in the Pc 4–5 frequency range play an important role in the dynamics of Earth's radiation belts, both by enhancing the radial diffusion through incoherent interactions and through the coherent drift ...
Murphy, KR, Rae, IJ, D. Pokhotelov, I. R. Mann, K. R. Murphy, I. J. Rae, Pokhotelov, D, Mann, IR   +7 more
core   +2 more sources