Medical Dictionary. brachial plexus. noun. Medical Definition of brachial plexus. : a complex network of nerves that is formed chiefly by the lower four cervical nerves and the first thoracic nerve, lies partly within the axilla, and supplies nerves to the chest, shoulder, and arm.
Nonrenewable Sources of Energy. Most of the energy we use comes from fossil fuels, such as coal, natural gas and petroleum. Uranium is another nonrenewable source, but it is not a fossil fuel.Uranium is converted to a fuel and used in nuclear power plants.Once these natural resources are used up, they are gone forever.nergy is the power we use for transportation, for heat and light in our homes and for the manufacture of all kinds of products. There are two sources of energy: renewable and nonrenewable energy.
Natural gas is one of the leading energy sources for distributed generation. Because of the extensive natural gas supply infrastructure and the environmental benefits of using natural gas, it is one of the leading choices for on-site power generation. There are a number of ways in which natural gas may be used on-site to generate electricity. Fuel cells, gas-fired reciprocating engines, industrial natural gas-fired turbines, and microturbines are all popular forms of using natural gas for on-site electricity needs. Industrial Natural Gas Fired Turbines