Molecular electronic transition — Molecular electronic transitions take place when electrons in a molecule are excited from one energy level to a higher energy level. The energy change associated with this transition provides information on the structure of a molecule and… … Wikipedia
Molecular diffusion — This article is about spontaneous dispersion of mass. For a more generic treatment of diffusion, see Diffusion. Diffusion from a microscopic and macroscopic point of view. Initially, there are solute molecules on the left side of a barrier… … Wikipedia
Molecular imaging — originated from the field of radiopharmacology due to the need to better understand the fundamental molecular pathways inside organisms in a noninvasive manner. Contents 1 … Wikipedia
Coefficient of thermal expansion — When the temperature of a substance changes, the energy that is stored in the intermolecular bonds between atoms changes. When the stored energy increases, so does the length of the molecular bonds. As a result, solids typically expand in… … Wikipedia
Coefficient de partage octanol-eau — LogP LogP aussi appelé Log Kow, est une mesure de la solubilité différentielle de composés chimiques dans deux solvants (coefficient de partage octanol/eau). LogP est égal au logarithme du rapport des concentrations de la substance étudiée dans l … Wikipédia en Français
Coefficient de partition — LogP LogP aussi appelé Log Kow, est une mesure de la solubilité différentielle de composés chimiques dans deux solvants (coefficient de partage octanol/eau). LogP est égal au logarithme du rapport des concentrations de la substance étudiée dans l … Wikipédia en Français
molecular diffusion, coefficient of — The component of mass transport flux of solutes (at the microscopic level) due to variations in solute concentrations within the fluid phases. Synonymous with diffusion coefficient [22] … Lexicon of Cave and Karst Terminology
Partition coefficient — In chemistry and the pharmaceutical sciences, a partition (P) or distribution coefficient (D) is the ratio of concentrations of a compound in the two phases of a mixture of two immiscible solvents at equilibrium.[1] The terms gas/liquid partition … Wikipedia
Ultra-high-molecular-weight polyethylene — (UHMWPE or sometimes shortened to UHMW), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the… … Wikipedia
Ultra high molecular weight polyethylene — (UHMWPE), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the millions, usually between 2 and… … Wikipedia
Linear combination of atomic orbitals molecular orbital method — A linear combination of atomic orbitals or LCAO is a quantum superposition of atomic orbitals and a technique for calculating molecular orbitals in quantum chemistry [Huheey, James. Inorganic Chemistry:Principles of Structure and Reactivity ] .… … Wikipedia