Determining a carbon footprint is easier said than done, and it’s not clear how much weight we should put on it. One way to gain a quantifiable understanding of the impacts of our actions, for good ...

Abstract: With the continuous increases of the train speed, the braking device that relies on the wheel-rail adhesion has approached its acceptable speed limit. Compared with traditional friction ...

Kerala’s Outer Ring Road (ORR) project has taken a significant step forward after the State Level Expert Appraisal Committee (SEAC) formally granted environmental clearance, providing long-awaited ...

Abstract: This paper presents a method for deriving an expression for the magnetic field in the vicinity of a permanent ring magnet with a trapezoidal cross-section, based on the concept of fictitious ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Shoppers buy goods at a duty-free store in Haikou, Hainan province. CHINA DAILY China will further ease market entry criteria for companies seeking to tap duty-free and preferential policies in its ...

打开微信，点击 “ 发现 ” ，使用 “ 扫一扫 ” 即可将网页分享至朋友圈。 Shoppers buy goods at a duty-free store in Haikou, Hainan province. CHINA DAILY China will further ease market entry criteria for companies seeking to tap ...