News by Subject Technology & Engineering

Having a home near a busy airport certainly has its perks. It is close to many establishments and alleviates the problem of wading through endless traffic to catch flights. But it does come at a cost -- tolerating the jarring sounds of commercial airplanes during landing and takeoff. Researchers at Texas A&M University have conducted a computational study that validates using a shape-memory alloy to reduce the unpleasant plane noise produced during landing.

New research published by the open access publisher Frontiers inventories greenhouse gas emissions of 167 globally distributed cities. The study shows that just 25 mega-cities produce 52% of the greenhouse gas emissions from the studied cities. Asian cities emit the most greenhouse gasses (GHG), and most cities of developed countries had significantly higher per capita GHG emissions than those of developing countries. The authors propose three key policy recommendations.

An international study of parks and gardens finds even the humble roadside verge plays an important role in the environment and for our health.

A researcher from the University of Tsukuba has introduced a new theory for superconductivity that can better explain the results of recent experiments with high-temperature superconductors. By focusing on the "Berry connection," this work may lead to energy distribution with much less electrical resistance.

Throughout the pandemic, air sensors watched during lockdowns as air pollution fell in residential and commercial areas, and then as pollution rose again with reopenings. The changing levels, the researchers found, which behaved differently in residential and commercial parts of the city, show where pollution is coming from and how it might change in the future under different policies.

Synthesizing hybrid enzyme catalysts in situ to improve and expand enzymatic catalysis is an important way to address challenges of industrial biocatalysis. In this account, the construction principles, the structure-function relationship, the integration of biocatalysis and metal catalysis, and other key factors are introduced regarding the rational design of hybrid enzyme catalysts. This account sheds light on the development of rationally structurally designed hybrid enzyme catalysts for expanding biocatalysis in more chemical manufacturing processes.