A single IC or Single Chip could contain thousands or millions of transistors, resistors, capacitors and diodes. Additional components may also reside on it, all interconnected through a complex web of semiconductor wafers, silicon, copper and other materials. Size-wise, each component is small, usually microscopic. The resulting circuit, a monolithic chip, is also tiny -- often just enough to occupy a few square millimeters or centimeters of space. http://www.misuxin-en.com/integrated-circuit/single-chips/

In medicine and surgery, the branch that deals with the digestive system and its disorders is called gastroenterology. Gastroenterology focuses on the diseases affecting the gastrointestinal system, which includes all organs between the mouth and the anus along the alimentary canal. Gastroenterology does study on normal functions and diseases of the gastrointestinal system: esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver. http://www.mednovahz.com/gastroenterology-instruments/

Wear Pipelines Layer is a seamless steel pipe, and the inner layer is alumina ceramics. Ceramic liner layer hardness is up HV1100-1400, which is equivalent to tungsten carbide cobalt. The wear resistance performance is 20 times higher than carbon steel tubes. Alumina Ceramic Sheet Wear-resistant Tube can resist industrial wear problem mainly by a few millimeters thick corundum inner layer, which is much better than alloy steel pipe and cast tube resisting by both composition,organization and thickness. http://www.hznmpipeline.com/alumina-ceramic-sheet-wear-resistant-tube/

Further classifications might be by size. For instance, miniature linear bearings might work well moving a biologic slide sample just a few millimeters beneath a microscope lens while industrial-bearings on injection molding machines carry tooling of several tons. Bushings provide possibly the simplest linear bearing. These thin-walled cylinders can be injection molded of proprietary polymers infused with a lubricant. An oil-infused bronze design, also cylindrical, rides on a polished round rod. This linear-bearing classification is often referred to as slides. http://www.lsyongrun.com/sbr-rail-and-block/

Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is composed primarily of the mineral calcite (CaCO3) and usually contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite. Under the conditions of metamorphism, the calcite in the limestone recrystallizes to form a rock that is a mass of interlocking calcite crystals. A related rock, dolomitic marble, is produced when dolostone is subjected to heat and pressure. http://www.hzxstone.com/marble/

Clastic marbles: fragments of rocks, cemented fossils as well as siliceous or calcareous materials are visible in the texture. Serpentine marbles: green colored marbles whose name derives from a particular group of minerals called the serpentine group which is mixed with limestone. Sometimes, it is possible to find them in darker shades close to blue or yellow based on which mineral of serpentine group is present in the majority within the marble. http://www.mqmarble.com/marble/blue-marble/

he simplest silicon carbide manufacturing method involves melting silica sand and carbon, such as coal, at high temperatures―up to 2500 degrees Celsius. Darker, more common versions of silicon carbide often include iron and carbon impurities, but pure SiC crystals are colorless and form when silicon carbide sublimes at 2700 degrees Celsius. Once heated, these crystals deposit onto graphite at a cooler temperature in a process known as the Lely method. http://www.runjinrefractories.com/silicon-carbide-products/