Devices that control the supply of electric current for running electrical equipment.

Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.

The physical effects involving the presence of electric charges at rest and in motion.

Methods of creating machines and devices.

The chemical reactions involved in the production and utilization of various forms of energy in cells.

Total number of calories taken in daily whether ingested or by parenteral routes.

The transfer of energy of a given form among different scales of motion. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed). It includes the transfer of kinetic energy and the transfer of chemical energy. The transfer of chemical energy from one molecule to another depends on proximity of molecules so it is often used as in techniques to measure distance such as the use of FORSTER RESONANCE ENERGY TRANSFER.

Units that convert some other form of energy into electrical energy.

A type of FLUORESCENCE SPECTROSCOPY using two FLUORESCENT DYES with overlapping emission and absorption spectra, which is used to indicate proximity of labeled molecules. This technique is useful for studying interactions of molecules and PROTEIN FOLDING.

The exertion of a strong influence or control over others in a variety of settings--administrative, social, academic, etc.

Planned management, use, and preservation of energy resources.

Energy transmitted from the sun in the form of electromagnetic radiation.

A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed)

Forms of energy that are constantly and rapidly renewed by natural processes such as solar, ocean wave, and wind energy. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Computer-based representation of physical systems and phenomena such as chemical processes.