Results 41 to 50 of about 816,463 (187)

Systematic effects on dark energy from 3D weak shear

, 2008
We present an investigation into the potential effect of systematics inherent in multi-band wide field surveys on the dark energy equation of state determination for two 3D weak lensing methods. The weak lensing methods are a geometric shear-ratio method
A. F. Heavens, A. N. Taylor, Abdalla, Adelman-McCarthy, Benitez, Bernstein, Blake, Bolzonella, Bridle, Brown, Castro, Catelan, Chang, Chevallier, Collister, Cooray, Crittenden, Edmondson, Fisher, Heavens, Heavens, Heavens, Heymans, Heymans, Heymans, Hirata, Hu, Huterer, Huterer, Ishak, Jain, Jungman, Kaiser, King, King, Kitching, Kitching, Kitching, Lima, Linder, Ma, Mandelbaum, Massey, Miller, Munshi, Peacock, Refregier, Rudd, Schneider, Semboloni, Shapiro, Spergel, T. D. Kitching, Takada, Takada, Taylor, Tegmark, Zentner   +57 more
core   +1 more source

Optimization approach for optical absorption in three-dimensional structures including solar cells

, 2018
The rigorous coupled-wave approach (RCWA) and the differential evolution algorithm (DEA) were coupled in a practicable approach to maximize absorption in optical structures with three-dimensional morphology.
Ahmad, Faiz, Anderson, Tom H., Civiletti, Benjamin J., Lakhtakia, Akhlesh, Monk, Peter B.   +4 more
core   +1 more source

Considering the Figure of Merit as a parameter of optimization in Mammography: a case study of the performance in a CR and a DR system

Brazilian Journal of Radiation Sciences
Mammography is an important examination for the early detection of breast cancer, and its use requires radiation protection considerations to ensure the lowest possible risk to the patient.
Raíssa Xavier Contassot, Leonardo Catusso, Isabela Rocha Veiga da Silva, Fabrício Nery Garrafiel, Davi Silveira Azevedo, Cássio Costa Ferreira, Marcela Costa Alcântara Estácio, Felipe Amorim Santos, João Vinícius Batista Valença   +8 more
doaj   +1 more source

Search for Thermoelectrics with High Figure of Merit in half-Heusler compounds with multinary substitution

, 2017
In order to improve the thermoelectric performance of TiCoSb we have substituted 50% of Ti equally with Zr and Hf at Ti site and Sb with Sn and Se equally at Sb site.
Choudhary, Mukesh K., Ravindran, P
core   +1 more source

Optimizing plasmonic nanostructures array for high-performance sensing applications

Results in Physics
The localized surface plasmon resonance (LSPR) phenomenon, influenced by the surrounding medium, has been widely employed in optical sensors. Traditional sensors focus on refractive index sensitivity (ηRIS) but neglect the broad spectral linewidth, thus ...
Sajid Farooq, Rashid Hussain Dahar, Muhammd Waqas Yasin, May Hu, Diego Rativa, Dexing Kong, Renato E. de Araujo   +6 more
doaj   +1 more source

Enhancement of thermoelectric properties of La-doped SrTiO3 bulk by introducing nanoscale porosity [PDF]

Royal Society Open Science, 2019
Electron-doped SrTiO3 is a well-known n-type thermoelectric material, although the figure of merit of SrTiO3 is still inferior compared with p-type metal oxide-based thermoelectric materials due to its high lattice thermal conductivity. In this study, we
Al Jumlat Ahmed, Sheik Md. Kazi Nazrul Islam, Ridwone Hossain, Jeonghun Kim, Minjun Kim, Motasim Billah, Md. Shahriar A. Hossain, Yusuke Yamauchi, Xiaolin Wang   +8 more
doaj   +1 more source

A phenomenological figure of merit for photovoltaic materials

JPhys Energy
I derive a figure of merit (FOM) $\Gamma_{\mathrm{PV}}$ to estimate the maximum efficiency attainable by a generic non-ideal photovoltaic (PV) absorber in a planar single-junction solar cell.
Andrea Crovetto
doaj   +1 more source

Heisenberg scaling based on population coding [PDF]

Quantum
We study Heisenberg scaling of quantum metrology in the viewpoint of population coding. Although Fisher information has been used for a figure of merit to characterize Heisenberg scaling in quantum metrology, several studies pointed out it does not work ...
Masahito Hayashi
doaj   +1 more source

Enhanced thermoelectric figure of merit in vertical graphene junctions

, 2014
In this work, we investigate thermoelectric properties of junctions consisting of two partially overlapped graphene sheets coupled to each other in the cross-plane direction.
Dollfus, P., Nguyen, Huy-Viet, Nguyen, M. Chung, Nguyen, V. Hung, Saint-Martin, J.   +4 more
core   +3 more sources

Three-terminal semiconductor junction thermoelectric devices: improving performance

New Journal of Physics, 2013
A three-terminal thermoelectric device based on a p–i–n semiconductor junction is proposed, where the intrinsic region is mounted onto what is typically a bosonic thermal terminal.
Jian-Hua Jiang, Ora Entin-Wohlman, Yoseph Imry   +2 more
doaj   +1 more source