GC: n CT: Solar Irradiance is a measure of how much solar power you are getting at your location. This irradiance varies throughout the year depending on the seasons. It also varies throughout the day, depending on the position of the sun in the sky, and the weather. Solar insolation
GC: n CT: Solar water pumps are high efficiency pumps specifically designed to run from solar panels. Coupled with a suitable pumping maximiser or controller, they continue to pump in low light conditions such as cloud cover, early morning and late afternoons. The most common variety of solar pumps are
GC: n CT: Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other half is mostly in the near-infrared part, with some in the ultraviolet part of the spectrum. The portion
GC: n CT: Each object that converts solar radiation into heat can be considered a solar thermal collector. As such, the earth itself or even human beings are prominent examples. In a more technical sense, however, a solar thermal collector is a device that converts incoming radiation into some technically
GC: n CT: Solar thermal energy is the use of solar energy to produce heat. This is an effect you’re familiar with if you’ve ever gotten into your car after it has been parked in the sun on a hot summer day. Solar thermal energy works in the same way
GC: n CT: Most of us don’t think much about where our electricity comes from, only that it’s available and plentiful. Electricity generated by burning fossil fuels such as coal, oil and natural gas, emits carbon dioxide, nitrogen oxides and sulfur oxides -gases scientists believe contribute to climate change. Solar
GC: n CT: Many people associate solar electricity generation directly with photovoltaics and not with solar thermal power. Yet large, commercial, concentrating solar thermal power plants have been generating electricity at reasonable costs for more than 15 years. S: http://www.volker-quaschning.de/articles/fundamentals2/index_e.php (last access: 25 February 2015) N: 1. solar (adj): mid-15c.,
GC: n CT: Solar water heating collectors capture and retain heat from the sun and transfer this heat to a liquid. Solar thermal heat is trapped using the “greenhouse effect,” in this case is the ability of a reflective surface to transmit short wave radiation and reflect long wave radiation.
GC: n CT: Sonar is an acronym (like radar, now spelled with all lower-case letters) for sound navigation and ranging. The principle involves bouncing acoustic waves off of objects, and determining their distances by measuring the time for the echoes to return. Sonar is commonly used on board ships and
GC: n CT: The steam generated in the topping evaporator is ejected through two sonic nozzles at opposing sides of the aft fuselage to reduce payload water vapor pollutants and to minimize venting thrust effects. S: AGARD, p.87 N: 1. – sonic (adj): 1923, from Latin sonus “sound” (from PIE
GC: n CT: The term spam refers to unsolicated commercial advertisments distributed online. Most spam comes to people via email, but spam can also be found in online chat rooms and message boards. Spam consumes a tremendous amount of network bandwidth on the Internet. More importantly, it can consume too
GC: n CT: Specific conductance is a measure of the electric current in the water sampled carried by the ionized substances, therefore the dissolved solids are basically related to this measure that is also influenced by the good conductivity of inorganic acids, bases and salts the poor conductivity characteristics of
GC: n CT: The flow around a wind turbine is a set of forces applied by the wind on the blades defined by the most significant parameters from a dimensional analysis detailing the power of wind turbine. This later is criss- crossed by changes of turbulent intensity unlike the Reynolds
GC: n CT: The term spectroradiometer is closely related to radiometry. Radiometry is the study of electromagnetic radiation. Light is one form of electromagnetic radiation and thus included in the scientific field of radiometry. Both radiometry and spectroradiometry are used by astronomers to study objects in space. Spectroradiometry can help
GC: n CT: The speech is primary mode of communication among human being and also the most natural and efficient form of exchanging information among human in speech. So, it is only logical that the next technological development to be natural language speech recognition for HCI. Speech Recognition can be
GC: n CT: One of the main components of the transmission of a wind turbine is the speed multiplier. Its role is to increase the relative small rotational speed of the propeller to the nominal relative high rotational speed of the generator. This paper is dealing with optimal gear design
GC: n CT: At present, then, checkers and correctors play a small but useful role in helping people to remove minor errors from their written work. Some systems are just checkers – they flag errors but make no attempt to offer suggestions – and this is often all that is
GC: n CT: Implementing spelling correction: There are two basic principles underlying most spelling correction algorithms. Of various alternative correct spellings for a mis-spelled query, choose the “nearest one. This demands that we have a notion of nearness or proximity between a pair of queries. We will develop these proximity
GC: n CT: An overflow spillway is most often constructed as part of a gravity dam or a buttress dam. The spillway section is lower than the other sections of the dam allowing water to flow over its top and down its front face. Sometimes, the whole of the dam
GC: n CT: Spintronics is “Spin based electronics”. The idea is to use the electron’s spin, as well as it’s charge. Electrons can spin in two directions (Spin-Up, Spin-Down, which is actually clockwise and anti-clockwise), and the spin is detectable as weak magnetic energy. Spintronic device do not need an
GC: n CT: Programs that secretly record what you do on your computer are called spyware. They can be used for some perfectly legitimate purposes, but the majority of spyware is malicious. Its aim is usually to capture passwords, banking credentials and credit card details – and send them over
GC: n CT: Discovered in 1977 by David L. Staebler and Christopher R. Wronski, the Staebler-Wronski effect was described as a significant decrease in dark conductivity and photoconductivity as a result of prolonged light soaking (LS) of a-Si:H material. S: http://repository.tudelft.nl/assets/uuid:919fdef7-e5b2-467c-9b9d-2ee9fd55570a/Master_Thesis_Kim_Solesvik_Oppedal.pdf (last access: 13 February 2015) N: 1. The degradation