Heat Shrink Tubing, also called heat shrinkable tubing, is a tube that contracts when warmed. When heat is applied to the heat shrink tubing, the adhesive material inside of the tube is activated.The adhesive material then secures it to the wire or cable. The process allows the wire or cable and the heat shrink tubing to become one unified product. 2:1 - This heat shrink tubing will become half of its original size once heat is applied. 2  The original heat shrinkable tubing is twice as large as its shrunken form. 3  3:1 - This heat shrink tubing will be one third of its original size once heat is applied.
Biologically, conception is the moment when a sperm cell from a male breaches the ovum, or egg, from a female. The process is also known as fertilization and is the initial stage of development for human growth.
While there is no single standardized definition, there are many opinions and beliefs as to what it means for a business to be sustainable. While the study of sustainability evolves, The Evergreen Group has decided to use the following definition: A sustainable business is one that operates in an environmentally responsible way. Its products and business processes are such that no negative environmental impact is felt as a result of their existence. The details of sustainable business lie in chemistry and material science, ecology and environmental science.