Results 71 to 80 of about 17,621 (241)
The long wave of conditional convergence
, 2006 We calculate the time series of the speed of convergence for 21 high-income countries over the period: 1953-1996, using low-pass filtered time series of per-capita GDP which are thus isolated from the influence of the short-run business cycle components.
Tong, Jian
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Advanced Functional Materials, EarlyView.A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla +2 more
wiley +1 more source
This paper presents a qualitative study on the adoption of early information technologies, such as typewriters, calculators or Hollerith machines in US manufacturing in the period between 1870 and 1930, which was by all means a true systemic innovation ...
Reinstaller ,Andreas, Hölzl,Werner
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Advanced Functional Materials, EarlyView.This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero +13 more
wiley +1 more source
Patterns of Change: Technological Substitution and Long Waves in the United States
, 1985 Economic development and the advancement of technology is presented as a process of substituting old forms of satisfying human needs by new ones or, more precisely, as a sequence of such substitutions. The examples, reconstructed from historical records.
openaire +2 more sources
Advanced Functional Materials, EarlyView.Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son +5 more
wiley +1 more source
The ICT Component of Technological Diversification: Is there an underestimation of ICT capabilities among the world's largest companies? [PDF]
This empirical paper analyses the importance of information and communications technologies (ICT) in the technological diversification trend among the world's large industrial firms. The objective of the research is twofold.
Sandro Mendonça
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Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport
Advanced Functional Materials, EarlyView.This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan +9 more
wiley +1 more source
Simulation models of technological innovation: A Review
The use of simulation modelling techniques in studies of technological innovation dates back to Nelson and Winter''s 1982 book "An Evolutionary Theory of Economic Change" and is an area which has been steadily expanding ever since.
Windrum,Paul
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Evolutionary dynamics and scientific flows of nanotechnology research across geo-economic areas [PDF]
The purpose of this paper is to analyze, by concentration measures, metrics of dispersion and heterogeneity, the dynamics of the production of scientific output in nanosciences and nanotechnologies across worldwide economic players.
Mario Coccia
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