Results 61 to 70 of about 1,475,197 (300)
Energies, 2023 The photovoltaic conversion efficiency of a single-intermediate band solar cell that incorporates a double quantum well structure consisting of GaAs/InAs/GaAs/InAs/GaAs embedded in the intrinsic region of conventional p-i-n structure is analyzed.
Angel E. Obispo +2 more
doaj +1 more source
Efficient low-power terahertz generation via on-chip triply-resonant nonlinear frequency mixing
, 2009 Achieving efficient terahertz (THz) generation using compact turn-key sources operating at room temperature and modest power levels represents one of the critical challeges that must be overcome to realize truly practical applications based on THz. Up to
A. W. Rodriguez +8 more
core +1 more source
, 2020 Type-checking in dependent type theories relies on conversion, i.e. testing given lambda-terms for equality up to beta-evaluation and alpha-renaming. Computer tools based on the lambda-calculus currently implement conversion by means of algorithms whose complexity has not been identified, and in some cases even subject to an exponential time ...
openaire +2 more sources
Nanoparticulate Coatings with Efficient Up-Conversion Properties
ACS Applied Materials & Interfaces, 2014 Nanoparticulate films with high up-conversion emission (UC) properties were prepared by spray-deposition of nanometer-sized YVO4:Yb,Er particles. The optical properties of YVO4:Yb,Er were optimized upon annealing before the film deposition in order to get the highest possible UC signal in the considered type of system. Thanks to a simple model and some
Dantelle, Géraldine +4 more
openaire +4 more sources
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source
A Model of Solid Oxide Fuel Cell Degradation on a Microstructural Level
Applied Sciences, 2020 The growth of nickel (Ni) particles in the porous anode is one of the most critical issues in solid oxide fuel cells (SOFC). It reduces the density of triple-phase boundaries (TPBs) over time and increases the polarization resistance of SOFC. Most of the
Marko Nerat
doaj +1 more source
Intersubband-transition-induced phase matching [PDF]
, 1994 We suggest the use of the refractive-index changes associated with the intersubband transitions in quantum wells for phase matching in nonlinear materials.
Almogy, Gilad +2 more
core +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
Zeitschrift für Kristallographie - New Crystal Structures, 2017 C13H10BF5O3, triclinic, P1̄ (no. 2), a = 7.737(2) Å, b = 7.8600(19) Å, c = 11.803(3) Å, α = 82.03(2)°, β = 76.91(2)°, γ = 69.69(2)°, V = 654.2(3) Å3, Z = 2, Rgt(F) = 0.0471, wRref(F2) = 0.1203, T = 293 K.
Bai JinYuan, Hou YanJun
doaj +1 more source
Metamaterial Polarization Converter Analysis: Limits of Performance
, 2012 In this paper we analyze the theoretical limits of a metamaterial converter that allows for linear-to- elliptical polarization transformation with any desired ellipticity and ellipse orientation.
A. Drezet +32 more
core +1 more source