GC: n CT: the rotor for a typical utility-scale wind turbine includes three high-tech blades, a hub and a spinner. The blades are one of the most critical aspects for a wind turbine and are considered a strategic component by wind turbine OEMs. Most manufacturers create multiple blade types for

GC: n CT: HVDC systems can transmit more electrical power over longer distances than a similar alternating current (AC) transmission system, which means fewer transmission lines are needed, saving both money and land. In addition to significantly lowering electrical losses over long distances, HVDC transmission is also very stable and

GC: n CT: In contrast to reactive agent architectures, deliberative architectures take up a different position and emphasize a symbol-based reasoning process, which requires an agent to posses a local worldview. In line with the physical symbol system hypothesis (Newell and Simon 1976) symbol manipulation is necessary for producing general

GC: n CT: Conventional vehicles use gasoline or diesel to power an internal combustion engine. The hybrid car also uses an internal combustion engine—and can be fueled like normal cars—but has an electric motor and battery, and can be partially or wholly powered by electricity. By using both a conventional

GC: n CT: Hybridization of thermal plants is a great driver to increase the CSP share in the global energy mix. Merits of the concept: Lower (~x1.8) LCOE than that of stand-alone CSP plants – Can compete with PV. Many developing countries will build CSP and coal plants, or already

GC: n CT: Aquifer tests (pumping tests, slug tests and constant-head tests) are performed to estimate the hydraulic properties of aquifers and aquitards including horizontal and vertical hydraulic conductivity, storativity, specific yield and porosity. S: http://www.aqtesolv.com/aquifer-tests/aquifer_properties.htm (last access: 20 February 2015) N: 1. – hydraulic (adj): “pertaining to fluids in

GC: n CT: Hydraulic energy. Itaipu produces electricity based on hydraulic energy, in other words, using potential gravitational energy from the water, contained in an elevated reservoir. This energy is present in nature and it can be used in sharp descents or waterfalls. Before it turns into electric energy, this

GC: n CT: Darcy’s Law is an empirical relationship for liquid flow through a porous medium. A common application is groundwater flow through an aquifer. Darcy’s Law gives the relationship among the flow rate of the groundwater, the cross-sectional area of the aquifer perpendicular to the flow, the hydraulic gradient,

GC: n CT: A hydraulic free piston engine (HFPE) combines a diesel engine and a hydraulic pump into one compact component. In practical view there is only one linearly moving part in the HFPE, the piston assembly containing three parts, combustion and hydraulic pistons and piston rod. The piston assembly

GC: n CT: Hydraulic structures are anything that can be used to divert, restrict, stop, or otherwise manage the natural flow of water. They can be made from materials ranging from large rock and concrete to obscure items such as wooden timbers or tree trunks. A dam, for instance, is

GC: n CT: Hydropower is considered a renewable energy resource because it uses the Earth’s water cycle to generate electricity. Water evaporates from the Earth’s surface, forms clouds, precipitates back to earth, and flows toward the ocean. The movement of water as it flows downstream creates kinetic energy that can

GC: n CT: There is no shortage of information – and misinformation – in the media about energy use, renewables and the need to curtail (or eliminate) the use of hydrocarbons. While it is true that mankind needs to reduce its dependence on hydrocarbons, because of their non-renewable nature, there

GC: n CT: Hydrocracking is an important source of diesel and jet fuel. A hydrocracking unit, or hydrocracker, takes gas oil, which is heavier and has a higher boiling range than distillate fuel oil, and cracks the heavy molecules into distillate and gasoline in the presence of hydrogen and a

GC: n CT: Hydroelectric power is produced as water passes through a dam, and into a river below. The more water that passes through a dam, the more energy is produced. Once a dam is built, an artificial man-made lake is created behind the dam. Electricity is produced by a

GC: n CT: Hydroelectric power plants use the potential energy of water stored in a reservoir to operate turbines. The turbines are connected to large generators, and can operate on varying volumes of water to adapt to changing demand for electricity. Hydroelectric power plant capacity is related to the height

See hydroelectric power

GC: n CT: Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It’s also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn’t occur naturally as a gas on the Earth – it’s always combined with other

GC: nf CT: Hydrogenases are enzymes that catalyse the reversible oxidation of H2 to protons at close to the thermodynamic potential. The reaction takes place at a bimetallic active site consisting of Fe atoms (‘(FeFe)-hydrogenases’) or one Ni and one Fe atom (‘(NiFe)-hydrogenases’), coordinated by biologically unusual CO and CN&ndash

GC: n CT: Hydropower potential (theoretical possitibility for electricity generation). Hydropower, generating electricity through turbines, represents a clean and renewable energy source, but not without problems. Dams and reservoirs disrupt the natural flow, and may increase siltation and evaporation, in addition to severe impacts for wildlife, for instance migrating fish.

GC: n CT: Ocean thermal energy conversion (OTEC), the prior art, is a subset of what is conceived as hydrothermal energy. Whereas OTEC (also known as hydrothermal power generation), focuses on electrical power generation from ocean temperature difference, hydrothermal energy offers a more comprehensive utilization of the natural water resources.

GC: n CT: Hypertext, also called Hyperlinking, the linking of related pieces of information by electronic connections in order to allow a user easy access between them. Hypertext is a feature of some computer programs that allow the user of electronic media to select a word from text and receive additional information

See HUMANTERM: https://humantermuem.es/ICT-in-Education

See building automation

GC: n CT: Industrial Ecology is an emerging interdisciplinary field combining natural, technical and social sciences in a systems view at scale levels from the global to the local. Its core concept is the analogy between processes in nature (biosphere) and processes in society (techno-sphere). Evolution has resulted in a