An alpha-particle decay. In alpha decay, shown in Fig. 3-3, the nucleus emits a 4 He nucleus, an alpha particle. Alpha decay occurs most often in massive nuclei that have too large a proton to neutron ratio.An alpha particle, with its two protons and two neutrons, is a very stable configuration of particles.n alpha-particle decay. In alpha decay, shown in Fig. 3-3, the nucleus emits a 4 He nucleus, an alpha particle. Alpha decay occurs most often in massive nuclei that have too large a proton to neutron ratio.
gite. n. A simple, usually inexpensive rural vacation retreat especially in France. [French.
The trie, or prefix tree, is a data structure for storing strings or other sequences in a way that allows for a fast look-up.In its simplest form it can be used as a list of keywords or a dictionary.By associating each string with an object it can be used as an alternative to a hashmap.The name 'trie' comes from the word 'retrieval'. The basic idea behind a trie is that each successive letter is stored as a separate node.n its simplest form it can be used as a list of keywords or a dictionary. By associating each string with an object it can be used as an alternative to a hashmap. The name 'trie' comes from the word 'retrieval'. The basic idea behind a trie is that each successive letter is stored as a separate node.