A large-diameter tunnel boring machine (TBM) with a record-breaking excavation diameter of 16.64 meters rolled off the production line in Changsha, Central China's Hunan Province on Thursday. It will ...

Optical Surfaces Ltd has developed a novel kinematic mounting arrangement for its pre-aligned beam collimator and beam expander sub-assemblies. Traditionally large diameter or longer focal length ...

Large-diameter bearings have no precise definition. But a bore diameter of 12 in. or greater is used to define the size range that distinguishes large bearings from small ones. Some large bearings, ...

Fiber architecture, using continuous and chopped glass, mimics an I-beam for axial strength, without the need for axial or helical fibers. Improved glass sizing and toughened resin result in greater ...

Large and in charge. QuakeWrap team members demonstrate the size of the 16-foot-diameter StifPipe. Photo Credit, all images: QuakeWrap Inc. For more than two decades, QuakeWrap Inc. (Tucson, Ariz., ...