The ability to visualize or differentially identify microscopic structures is frequently enhanced through the use of histological stains. Histology is an essential tool of biology and medicine. The study of tissues bridges the gap between cell/molecular and organismal biology. In animals there are four major tissue types: Epithelial, Connective, Muscle, and Nervous tissues. Each tissue is classified based on the location, shape, and function of the cells which comprise them.
A synthetic lubricant contains more highly refined base oils than those used in conventional mineral oils, offering you superior protection and performance. Synthetic engine oils provide a variety of benefits that keep your engine running at optimal performance for years.
Solid Lubricants / Dry Lubrication Graphite and molybdenum disulfide (MoS2) are the predominant materials used as solid lubricant. In the form of dry powder these materials are effective lubricant additives due to their lamellar structure. The lamellas orient parallel to the surface in the direction of motion.elf lubricating composites: Solid lubricants as PTFE, graphite, MoS 2 and some other anti friction and anti wear additives are often compounded in polymers and all kind of sintered materials. MoS 2 for example is compounded in materials for sleeve bearings, elastomere O-rings, carbon brushes etc.