Results 71 to 80 of about 522,257 (279)

Ocean Energy: Using the Ocean's Tides, Waves, and Heat to Generate Electricity [PDF]

, 2006
Key facts: - The oceans' tides, waves, current, and heat can be used to generate electricity. These resources are renewable, because the moon's gravity drives tides, and winds create waves.

core  

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

The Possibility of Thermal Instability in Early-Type Stars Due to Alfven Waves

, 1998
It was shown by dos Santos et al. the importance of Alfv\'en waves to explain the winds of Wolf-Rayet stars. We investigate here the possible importance of Alfv\'en waves in the creation of inhomogeneities in the winds of early-type stars.
Barlow M. J., Brown J. C., D. R. Goncalves, dos Santos L. C., Friaca A. C. S., Goncalves D. R., Gouveia Dal Pino E. M., Hartmann L. W., Hillier D. J., Hollweg J. V., Jatenco-Pereira V., Jatenco-Pereira V., Lagage P. O., Leer E., Moffat A. F. J., Moffat A. F. J., Opher R., R. Opher, Robert C., V. Jatenco‐Pereira, van der Hucht K. A., Velli M.   +21 more
core   +2 more sources

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

Advanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +1 more source

Heat and Ozone Pollution Waves in Central and South Europe—Characteristics, Weather Types, and Association with Mortality

Atmosphere, 2020
Air pollution and hot temperatures present two major health risks, especially for vulnerable groups such as children, the elderly, and people with pre-existing conditions.
Elke Hertig, Ana Russo, Ricardo M. Trigo
doaj   +1 more source

Calculation of the specific heat in ultra-thin free-standing silicon membranes

, 2012
The specific heat of ultra-thin free-standing membranes is calculated using the elastic continuum model. We first obtain the dispersion relations of the discrete set of acoustic modes in the system.
Alzina, F., Chávez, E., Cuffe, J., Torres, C. M. Sotomayor   +3 more
core   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Magnitude and frequency of heat and cold waves in recent decades: the case of South America [PDF]

Natural Hazards and Earth System Sciences, 2016
In recent decades there has been an increase in magnitude and occurrence of heat waves and a decrease of cold waves, both of which may be related to the anthropogenic influence.
G. Ceccherini, S. Russo, I. Ameztoy, C. P. Romero, C. Carmona-Moreno   +4 more
doaj   +1 more source

Recent results on energy relaxation in disordered charge and spin density waves

, 2005
We briefly review different approaches used recently to describe collective effects in the strong pinning model of disordered charge and spin density waves, in connection with the CRTBT very low temperature heat relaxation experiments.Comment: 4 pages ...
Biljakovic, K., Lasjaunias, J. C., Monceau, P., Mélin, R.   +3 more
core   +1 more source