Abstract: In this article, we present a design scheme of an electron-optical system (EOS) for terahertz vacuum electron amplifiers. The performance characteristics are studied by simulation, and the ...

Concrete Carving & Sculpting: Precision Tutorial!! Trump erupts over Mar-a-Lago search after new email report The hidden risks of America’s most popular prescription painkiller Decades after Laci ...

Affordable, versatile, incredibly strong and locally available, concrete is the world’s most used manmade material. But it also has a huge carbon footprint, accounting for around 8% of global ...

America may have largely fallen out of love with the minivan, but here at Jalopnik, we stand by the superiority of the sliding rear door. It's just better. And while it may be hard for some of our ...

Reflecting changing currents in engineering design and material availability, the American Concrete Institute has updated its 318 standard to ACI 318-25, with a new sustainability guide and updated ...

Using intricate geometry found in nature and refined through aerospace and biomedical design, scientists have now 3D-printed these forms into concrete to boost strength and capture carbon – creating a ...

Few cities test a building’s limits like Chicago. From frigid winters and scorching summers to lake-driven winds and dense urban conditions, it’s a proving ground for materials. That’s why architects, ...

Concrete Carving & Sculpting: Precision Tutorial!! Read Joe Biden doctor's full statement on refusing to testify Actor Julian McMahon’s official cause of death revealed ‘Ridiculous prices’ blamed for ...

For the first few decades of the 20th century, pickup trucks were pretty primitive machines. Spartan cabs with little in the way of creature comforts, simple, torquey drivetrains, and solid axle front ...

There are many benefits of using concrete as your chosen hardscape material for your patio from its low-maintenance nature and durability to longevity. And while in the past settling for concrete's ...