Results 81 to 90 of about 284,741 (271)

Dark Matter: Introduction

, 2004
This short review was prepared as an introduction to the Royal Society's 'Dark Matter' conference. It addresses the embarrassing fact that 95% of the universe is unaccounted for.
C. S. Frenk, G. E. Kalmus, Martin J. Rees, Meszaros P., N. J. T. Smith, Roberts M. S., S. D. M. White   +6 more
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Measurement of Milli-Charged particles with a moderately large cross section from the Earth’s core at IceCube

Journal of High Energy Physics
It is assumed that heavy dark matter ϕ with O(TeV) mass captured by the Earth may decay to relativistic light milli-charged particles (MCPs). These MCPs could be measured by the IceCube neutrino telescope.
Ye Xu
doaj   +1 more source

Gamma-rays From Warm WIMP Dark Matter Annihilation

, 2012
The weakly interacting massive particle (WIMP) often serves as a candidate for the cold dark matter, however when produced non-thermally it could behave like warm dark matter.
Bi, Xiao-Jun, Cao, Yixian, Gao, Liang, Liu, Jie, Yin, Peng-Fei, Yuan, Qiang, Zhang, Xinmin   +6 more
core   +1 more source

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

Advanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source

Earth-scattering induced modulation in low-threshold dark matter experiments

Journal of High Energy Physics
Dark matter particles with sufficiently large interactions with ordinary matter can scatter in the Earth before reaching and scattering in a detector. This induces a modulation in the signal rate with a period of one sidereal day.
Xavier Bertou, Ansh Desai, Timon Emken, Rouven Essig, Tomer Volansky, Tien-Tien Yu   +5 more
doaj   +1 more source

Multiple Dark Matter as a self-regulating mechanism for dark sector interactions

, 2012
(Abridged) Present cosmological constraints and the absence of a direct detection and identification of any dark matter particle candidate leave room to the possibility that the dark sector of the Universe be actually more complex than it is normally ...
Amendola, Amendola, Amendola, Astier, Bacon, Baldi, Baldi, Baldi, Baldi, Baldi, Bartelmann, Bean, Bertacca, Bertone, Borgani, Boyarsky, Brax, Brookfield, Caldera-Cabral, Carturan, Damour, Davis, Epstein, Farrar, Fedeli, Ferreira, Fu, Grego, Hoekstra, Hoekstra, Holder, Huey, Jenkins, Kaiser, Komatsu, Komatsu, Koyama, La Vacca, Li, Lucchin, Macciò, Mainini, Markevitch, Markevitch, Meneghetti, Navarro, Padmanabhan, Palazzo, Percival, Perlmutter, Persic, Pettorino, Preskill, Ratra, Reeves, Reid, Reiprich, Riess, Sahni, Sand, Sand, Schmidt, Schramm, Springel, Springel, Turner, Valiviita, Vikhlinin, Wetterich, Wetterich, Xia, Zwicky   +71 more
core   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Dark Energy Search with Supernovae

, 2004
To determine the nature of dark energy from observational data, it is important that we use model-independent and optimal methods. We should probe dark energy using its density (allowed to be a free function of cosmic time) instead of its equation of ...
Barger, Barris, Branch, Hawkins, Knop, Lewis, Maor, Perlmutter, Phillips, Riess, Riess, Spergel, Tegmark, Tonry, Verde, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Yun Wang   +22 more
core   +2 more sources