Please Note: All times UK. Tables are subject to change. The BBC is not responsible for any changes that may be made. Manager: Pierre Sage Formation: 3 - 4 - 2 - 1 Manager: Roberto De Zerbi Formation: ...

Abstract: The shaped reflectors with contoured beams are usually concave-convex surfaces, but the traditional 2-layer AstroMesh reflector antennas must be tensioned in equilibrium without external ...

Abstract: We report in this letter a concave-convex microlens (CCML) consisting of two different high curvature surfaces. Compared with the conventional plano-convex microlenses, the CCML not only ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Cierra Murry is an expert in banking, credit cards, investing, loans, mortgages, and real estate. She is a ...

The lens focuses light and images onto the retina to help you see clearly. As you age, your lens may lose flexibility and become cloudy, leading to presbyopia and cataracts. The lens is a curved ...

Foreword The only time is now. Every “now” is unique. Responsible persons ask themselves, “How can I act well now?” The answers will differ for every person, because just as every situation is unique, ...