Results 141 to 150 of about 192,634 (311)
Long Term Trends in Resource Exergy Consumption and Useful Work Supplies in the UK, 1900-2000 [PDF]
Our aim is to explain historical economic growth in the UK economy by introducing an empirical measure for useful work derived from natural resource energy inputs into an augmented production function.
Benjamin Warr +2 more
core
Fibre optical parametric devices for large frequency-shift wavelength conversion [PDF]
, 2012 In this thesis, I investigate fibre optical parametric amplifiers (OPA) and oscillators (OPO), in terms of their potential for efficient large frequency-shift wavelength conversion. The underlying physical mechanism of fibre four wave mixing (FWM) offers
van der Westhuizen, Gysbert Johannes
core
Dimensional control of low-dimensional perovskite hybrids for photovoltaics
Nature CommunicationsLow-dimensional perovskite engineering offers a promising route to improve both power conversion efficiency and stability in perovskite photovoltaics, yet the mechanistic relationship between organic ligand design and structural control remains elusive ...
Fei Wang +18 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi +4 more
wiley +1 more source
Three dimensional architected thermoelectric devices with high toughness and power conversion efficiency. [PDF]
Nat Commun, 2023 Karthikeyan V +7 more
europepmc +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
High efficiency GaP power conversion for Betavoltaic applications [PDF]
, 1994 AstroPower is developing a gallium phosphide (GaP) based energy converter optimized for radio luminescent light-based power supplies. A 'two-step' or 'indirect' process is used where a phosphor is excited by radioactive decay products to produce light ...
Dinetta, Louis C. +2 more
core +1 more source