GC: n CT: Natural uranium contains 0.7% of the U-235 isotope. The remaining 99.3% is mostly the U-238 isotope which does not contribute directly to the fission process (though it does so indirectly by the formation of fissile isotopes of plutonium). Isotope separation is a physical process to concentrate (‘enrich’)

GC: n CT: A neural network is a “connectionist” computational system. The computational systems we write are procedural; a program starts at the first line of code, executes it, and goes on to the next, following instructions in a linear fashion. A true neural network does not follow a linear

GC: n CT: Neuroscience is a multidisciplinary science that is concerned with the study of the structure and function of the nervous system. It encompasses the evolution, development, cellular and molecular biology, physiology, anatomy and pharmacology of the nervous system, as well as computational, behavioural and cognitive neuroscience. S: http://www.nature.com/subjects/neuroscience

GC: n CT: Aksel L. Hallin, a physics professor at Queen’s University and the Sudbury Neutrino Observatory, gives this description: A neutrino is a subatomic particle that is very similar to an electron, but has no electrical charge and a very small mass, which might even be zero. Neutrinos are

GC: n CT: Since 2014, the WEEE (Waste Electrical and Electronic Equipment) Directive1 has required all PV suppliers in EU Member States to collect and recycle end-of-life PV panels. Another influence on PV recycling rates is the potential shortage of raw materials, particularly silicon, needed to make new panels. Most

See nitrogen oxide

GC: n CT: Nitrogen dioxide (NO2) is one of the nitrogen oxides (NOx), a group of air pollutants produced from combustion processes. In urban outdoor air, the presence of NO2 is mainly due to traffic. Nitric oxide (NO), which is emitted by motor vehicles or other combustion processes, combines with

GC: n CT: NOx is a generic term for the various nitrogen oxides produced during combustion. They are believed to aggravate asthmatic conditions, react with the oxygen in the air to produce ozone, which is also an irritant and eventually form nitric acid when dissolved in water. When dissolved in

GC: n CT: Nitrous oxide emissions gets produced by both natural and human sources. Important natural sources include soils under natural vegetation and the oceans. Natural sources create 62% of total emissions. Important human sources come from agriculture, fossil fuel combustion and industrial processes. Human-related sources are responsible for 38%

GC: n CT: What is Noise Pollution? The traditional definition of noise is “unwanted or disturbing sound”. Sound becomes unwanted when it either interferes with normal activities such as sleeping, conversation, or disrupts or diminishes one’s quality of life. The fact that you can’t see, taste or smell it may

GC: n CT: Most nonpoint source pollution occurs as a result of runoff. When rain or melted snow moves over and through the ground, the water absorbs and assimilates any pollutants it comes into contact with (USEPA, 2004b). Following a heavy rainstorm, for example, water will flow across a parking

NOx or NOx. See nitrogen oxide https://sierterm.es/content/nitrogen-oxide/?lang=en & nitrogen dioxide https://sierterm.es/content/nitrogen-dioxide/?lang=en.

GC: n CT: In nuclear energy, we refer to nuclear accident to those incidents that emit a certain level of radiation, which could harm public health. Nuclear accidents are classified as nuclear accidents and incidents depending on the severity´s level. In this classification nuclear accidents and radioactive accidents are included.

See HUMANTERM: https://humantermuem.es/nuclear-disarmament

GC: n CT: The common definition for nuclear energy is the energy released by a nuclear reaction, especially by fission or fusion. Practically speaking, nuclear energy uses fuel made from mined and processed uranium to make steam and generate electricity. Nuclear generation is the only source of electricity that can

GC: n CT: Nuclear fission is a nuclear reaction in which a heavy nucleus (such as uranium) splits into two lighter nuclei (and possible some other radioactive particles as well). In such radioactive heavy nuclei, the balance between the strong nuclear force attractive force and the electrostatic repulsive force can

GC: n CT: Although nuclear energy is considered clean energy its inclusion in the renewable energy list is a subject of major debate. To understand the debate we need to understand the definition of renewable energy and nuclear energy first. Renewable energy is defined as an energy source/fuel type that

GC: n CT: Apart from over 200 nuclear reactors powering various kinds of ships, Rosatom in Russia has set up a subsidiary to supply floating nuclear power plants ranging in size from 70 to 600 MWe. These will be mounted in pairs on a large barge, which will be permanently

GC: n CT: A nuclear reactor produces and controls the release of energy from splitting the atoms of certain elements. In a nuclear power reactor, the energy released is used as heat to make steam to generate electricity. (In a research reactor the main purpose is to utilise the actual

GC: n CT: What is ocean energy? Ocean energy is a term used to describe all forms of renewable energy derived from the sea. There are two broad types of ocean energy: mechanical energy from the tides and waves, and thermal energy from the sun’s heat. Ocean energy is classified

GC: n CT: What is OTEC? Ocean Thermal Energy Conversion (OTEC) is a marine renewable energy technology that harnesses the solar energy absorbed by the oceans to generate electric power. The sun’s heat warms the surface water a lot more than the deep ocean water, which creates the ocean’s naturally

GC: n CT: Wave energy is an irregular and oscillating low-frequency energy source that can be converted to a 60-Hertz frequency and can then be added to the electric utility grid. The energy in waves comes from the movement of the ocean and the changing heights and speed of the

GC: nm CT: Ocean thermal energy conversion, or OTEC, uses seawater to turn solar energy into electricity. It relies on the ocean’s thermal gradient – the temperature decline from the sun-warmed waters on the surface to the cold waters found at great depths. OTEC plants pipe in hot and cold

See byte (notes)