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Can development in the digital economy lead to a win-win for ‘efficiency promotion’ and ‘emission reduction’?

Chen Weiling, Huang Min, Du Chunjing

Ecological Chemistry and Engineering. S

2024

Vol. 31, nr 3

385--395

The contemporary landscape sees the digital economy (DE) as a pivotal driver of economic evolution. Hence, scrutinising its potential to harmonise ‘efficiency promotion’ and ‘emission reduction’ and combat the challenges of climate change in this digital epoch is imperative. This study empirically investigates the influence of DE growth by evaluating its impact on carbon emission scale and energy efficiency. The study employs econometric modelling to delve into the internal mechanisms and diverse characteristics of DE evolution that influence ‘efficiency promotion’ and ‘emission reduction’. Findings underscore a significant capacity within the DE to ameliorate energy efficiency and curtail overall carbon emissions, revealing its dual prowess in fostering ‘efficiency promotion’ and ‘emission reduction’. Robustness tests affirm these outcomes, fortifying the conclusion. Additionally, the effects of DE development on ‘efficiency promotion’ and ‘emission reduction’ are validated in these tests. The study reveals that the ‘efficiency promotion’ and ‘emission reduction’ facets of DE progression exhibit distinctive regional disparities, notably manifesting more pronounced impacts in the eastern regions.

Influence of viewing conditions on cross-media color matching

Huang Min, He Ruili, Guo Chunli, Shi Chunjie, Cui Guihua, Luo Ming Ronnier, Melgosa Manuel

Optica Applicata

2019

Vol. 49, nr 4

627--640

We investigated observer metamerism under a variety of viewing conditions, in a set of color-matching experiments using displays and printed color samples under specific light sources. A selection was made of light sources with different illuminances, spectral power distributions, and correlated color temperatures, as well as displays with different sets of primaries. A panel of 157 observers with normal color vision and ages between 20 and 59 years old performed 5465 visual color matches around 9 different color centers. The results from the simulated and real experiments were quite different. Specifically, the mean color difference from the mean changed with experimental viewing conditions, ranging from 0.73 to 1.64 CIELAB units (average 0.99 CIELAB units) in simulated experiments, and from 3.12 to 4.03 CIELAB units (average 3.55 CIELAB units) in real experiments. In real experiments, observers’ variability reduced for light sources with high illuminance and high correlated color temperature. Spectral power distributions affected observer metamerism, but the role played by the primaries of the two displays employed was unclear.