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Spin gaps and spin-flip energies in density-functional theory
(AMER PHYSICAL SOC, 2010)
Energy gaps are crucial aspects of the electronic structure of finite and extended systems. Whereas much is known about how to define and calculate charge gaps in density-functional theory (DFT), and about the relation ...
Novel Schiff base self-condensed oligomers in complexation with metallic triflates of low-band gap properties
(Springer-Verlag London Ltd, 2015)
Hybrid Stochastic/Information Gap Decision Theory Model for Optimal Energy Management of Grid-Connected Microgrids with Uncertainties in Renewable Energy Generation and Demand
(2021-01-01)
Microgrids (MGs) are considered a reliable solution for the integration of a high level of intermittent distributed energy resources. However, renewable energy generation has added complexity to the optimal energy management ...
Energy imbalance gap, anthropometric measures, lifestyle, and sociodemographic correlates in Latin American adults. Results from the ELANS study
(2022-01)
Overweight and obesity are often explained by an imbalance between energy intake and ex penditure. This, in addition to metabolic effects, makes it difficult to assess the real state of individual energy balance. This study ...
Comparison of some theoretical models for fittings of the temperature dependence of the fundamental energy gap in GaAs
(Sociedade Brasileira de Física, 2010)
In this work we report on a comparison of some theoretical models usually used to fit the dependence on temperature of the fundamental energy gap of semiconductor materials. We used in our investigations the theoretical ...
Spectroscopic studies of SnO2 doped with Cr, Co or Nb
(2003-03-15)
SnO2 ceramics doped with different amounts of Co, Cr or Nb were investigated using visible and infrared spectroscopy at room temperature. Based on the observed d-d transitions the valence states of incorporated dopants ...
Spectroscopic studies of SnO2 doped with Cr, Co or Nb
(2003-03-15)
SnO2 ceramics doped with different amounts of Co, Cr or Nb were investigated using visible and infrared spectroscopy at room temperature. Based on the observed d-d transitions the valence states of incorporated dopants ...
Electrical and optical characteristics of SnO2 thin films prepared by dip coating from aqueous colloidal suspensions
(1997-12-01)
Starting from aqueous colloidal suspensions, undoped and Nb5+ doped SnO2 thin films have been prepared by using the dip-coating sol gel process. X-ray diffraction results show that films are polycrystalline with crystallites ...