Lattice constantA lattice constant or lattice parameter is one of the physical dimensions and angles that determine the geometry of the unit cells in a crystal lattice, and is proportional to the distance between atoms in the crystal. A simple cubic crystal has only one lattice constant, the distance between atoms, but in general lattices in three dimensions have six lattice constants: the lengths a, b, and c of the three cell edges meeting at a vertex, and the angles α, β, and γ between those edges.
Hardening (metallurgy)Hardening is a metallurgical metalworking process used to increase the hardness of a metal. The hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain. A harder metal will have a higher resistance to plastic deformation than a less hard metal. The five hardening processes are: The Hall–Petch method, or grain boundary strengthening, is to obtain small grains. Smaller grains increases the likelihood of dislocations running into grain boundaries after shorter distances, which are very strong dislocation barriers.
Fundamental rights in IndiaThe Fundamental Rights a in India enshrined in part III (Article 12-35) of the Constitution of India guarantee civil liberties such that all Indians can lead their lives in peace and harmony as citizens of India. These rights are known as "fundamental" as they are the most essential for all-round development i.e., material, intellectual, moral and spiritual and protected by fundamental law of the land i.e. constitution.
Basic structure doctrineThe basic structure doctrine is a common law legal doctrine that the constitution of a sovereign state has certain characteristics that cannot be erased by its legislature. The doctrine is recognised in India, Bangladesh, Pakistan, and Uganda. It was developed by the Supreme Court of India in a series of constitutional law cases in the 1960s and 1970s that culminated in Kesavananda Bharati v. State of Kerala, where the doctrine was formally adopted.
