one of a group of cells that develop in the walls of the seminiferous tubules. Spermatogenic cells include spermatogonia, spermatocytes, and spermatidsâall of which are transitional forms between primary sexual cells and spermatozoa.
long-haul optics. Long-haul optics refers to the transmission of visible light signals over optical fiber cable for great distances, especially without or with minimal use of repeaters. Normally, repeaters are necessary at intervals in a length of fiber optic cable to keep the signal quality from deteriorating to the point of non-usability. In long-haul optical systems, the goal is to minimize the number of repeaters per unit distance, and ideally, to render repeaters unnecessary.
Jute fibers are long, varying from 1.5 to 3.5 meters, and good quality Jute has a golden sheen to it, earning it the nickname the golden fiber (although mainly golden brown, Jute fibers vary from white to silver grey). The fibers are spun into yarn, and then woven into a fabric, which in the US in known as burlap. Jute fabric/Burlap is extremely durable and has very little stretch, thus making it ideal for many different forms, from bags to carpets and clothing, and of course, upholstery.