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Topic: AS-Level

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Energy level - Wikipedia, the free encyclopedia Energy levels are said to be degenerate, if the same energy level is obtained by more than one quantum mechanical state. The following sections of this article gives an overview over the most important factors that determine the energy levels of atoms and molecules. The molecular energy levels are labelled by the molecular term symbols. en.wikipedia.org /wiki/Energy_level   (561 words)

MVS 330 Project Title The maximum flexion angle of the knee in the level treadmill was 124 degrees as opposed to 118 degrees of the inclined treadmill; the maximum extension angle of the level treadmill was 182 degrees and 176 degrees of the inclined treadmill. Maximum extension velocity of the knee of the level treadmill was 305 degrees/sec and inclined treadmill was 227 degrees/sec between movements. The maximum flexion angle of the hip for the level treadmill was 169 degrees as compared to inclined treadmill, which was 167 degrees, the maximum extension angle for level treadmill was 201 degrees as compared to inclined treadmill, which was 217 degrees. www.umich.edu /~mvs330/f00/incline/results2.html   (546 words)

Trophic level - Wikipedia, the free encyclopedia Trophic levels are very similar on land, with plants being the first trophic level, cows eating the grass being the second, and humans eating the cows being the third. This is why trophic levels are usually portrayed as a triangle, one that places grass on the bottom and cougars on top---the top is always much smaller than the bottom. In the ocean, phytoplankton is the primary producer (the first level in the food chain or the first trophic level).Phytoplankton converts inorganic carbon into protoplasm. en.wikipedia.org /wiki/Trophic_level   (1036 words)

Sea level - Wikipedia, the free encyclopedia To an operator of a tide gauge, MSL means the "still water level"—the level of the sea with motions such as wind waves averaged out—averaged over a period of time such that changes in sea level, e.g., due to the tides, also get averaged out. Traditionally, one had to process sea-level measurements to take into account the effect of the 228-month Metonic cycle and the 223-month eclipse cycle on the tides. As the graph shows, sea level today is very near the lowest level ever attained (the lowest level occurred at the Permo-Triassic boundary about 250 million years ago). en.wikipedia.org /wiki/Sea_level   (942 words)

Ambient noise level - Wikipedia, the free encyclopedia In telecommunications, ambient noise level or room noise level is the level of acoustic noise existing at a given location, such as in a room, in a compartment, or at a place out of doors. Ambient noise level is measured with a sound level meter. It is usually measured in dB above a reference pressure level of 0.00002 Pa, i.e., 20 μPa (micropascals) in SI units. en.wikipedia.org /wiki/Ambient_noise_level   (132 words)

Line level - Wikipedia, the free encyclopedia Line level signals are often contrasted with weaker signals, such as those output from microphones and inductive instrument pickups, and stronger signals, such as those used to drive headphones and speakers. Line level is a term used to denote the strength of an audio signal used to transmit analog sound information between audio components such as CD and DVD players, TVs, amplifiers, and mixing consoles. After manipulation at line level, signals are then typically sent to a device known as a power amplifier, where they are amplified to levels that can drive headphones or loudspeakers, which convert the signals back into sounds that can be heard through the air. en.wikipedia.org /wiki/Line_level   (331 words)

Level crossing - Wikipedia, the free encyclopedia Where third rail systems have level crossings, there is a gap in the third rail over the level crossing, but the power supply is not interrupted since trains have current collectors in the front and rear cars; however, care must be taken that a current or voltage gap is not created between the two ends. The term level crossing (also called a railroad crossing, railway crossing, or grade crossing) is a crossing on one level ("at-grade intersection")— without recourse to a bridge or tunnel— of a railway line by a road, path, or other railroad. Level crossings in China, Thailand, and Malaysia are still largely manually-operated, where the barriers are lowered using a manual switch when trains approach. en.wikipedia.org /wiki/Level_crossing   (1935 words)

Level 42 - Wikipedia, the free encyclopedia Level 42 was a British funk music band who had a number of worldwide and UK hits during the 1980s. Level 42 was formed in 1980 as a jazz-funk fusion band. Elements of Level 42's roots can still be found in the funky "Coup d'Etat" and "Dream Crazy" on the UK version of the album, as well as a long instrumental track named "Hell", which was also recorded during the World Machine sessions. en.wikipedia.org /wiki/Level_42   (1844 words)

Base level - Wikipedia, the free encyclopedia The uplift of the Colorado Plateau, combined with the opening of the Gulf of California to the sea, established sea level as the base level for the Colorado River and led to the (geologically) rapid erosion that resulted in the Grand Canyon. When the source of a stream is very high, relative to the base level (high stream gradient), erosion proceeds rapidly due to the energy of the rapidly moving water; the topography becomes rugged; and we say the stream is young (geologically speaking). For large rivers, sea level is usually the base level, but a large river or lake is likewise the base level for tributary streams. en.wikipedia.org /wiki/Base_level   (491 words)

Probability of a statistic and its significance level The significance of a statistic is its probability of occurrence assuming the null hypothesis is true In the previous example, the probability of obtaining a mean of 1.5 (or higher) from a population assumed to have a mean of zero is.025 Probability of a statistic and its significance level www.les.appstate.edu /courses/research/Session9/tsld011.htm   (57 words)

Statistical significance - Wikipedia, the free encyclopedia For example, one may choose a significance level of, say, 5%, and calculate a critical value of a statistic (such as the mean) so that the probability of it exceeding that value, given the truth of the null hypothesis, would be 5%. More precisely, in traditional frequentist statistical hypothesis testing, the significance level of a test is the maximum probability of accidentally rejecting a true null hypothesis (a decision known as a Type I error). However a test at the 1% level is more likely to have a Type II error than a test at the 5% level, and so will have less statistical power. en.wikipedia.org /wiki/Statistical_significance   (386 words)

Signal compression - Wikipedia, the free encyclopedia Instantaneous values of the input signal that are low, relative to the reference level, are increased, and those that are high are decreased. In analog (usually audio) systems, reduction of the dynamic range of a signal by controlling it as a function of the inverse relationship of its instantaneous value relative to a specified reference level. Signal compression (in dB) may be a linear or nonlinear function of the signal level across the frequency band of interest and may be essentially instantaneous or have fixed or variable delay times. en.wikipedia.org /wiki/Signal_compression   (234 words)

Level set method - Wikipedia, the free encyclopedia The level set method was developed in the 1980s by the American mathematicians Stanley Osher and James Sethian and ever since it became very popular in many disciplines, such as image processing, computer graphics, computational geometry, optimization, and computational fluid dynamics. Also, the level set method makes it very easy to follow shapes which change topology, for example when a shape splits in two, develops holes, or the reverse of these operations. The boundary of the shape is then the zero level set of φ, while the shape itself is the set of points in the plane for which φ is positive or zero. en.wikipedia.org /wiki/Level_set_method   (577 words)

Priority article - Priority telecommunication frequency priority level record communications - What-Means.com In DOD voice communications systems, one of the levels of precedence assigned to a subscriber telephone for the purpose of preemption of telephone services. In DOD record communications systems, one of the four levels of precedence used to establish the time frame for handling a given message. In telecommunication, the term priority has the following meanings: www.what-means.com /encyclopedia/Priority   (133 words)

level plains, alabama Level Plains is a town located in Dale County, Alabama. Level Plains is located at 31°18'49" North, 85°46'2" West (31.313659, -85.767307) www.yourencyclopedia.net /Level_Plains,_Alabama   (133 words)

Neutral - Wikipedia, the free encyclopedia In language study, neutral is an adjective used for the neuter noun gender, as well as for the gender-neutral language. In semiotics the neutral level is the "trace" left behind, the physical or material creation of esthesic and poietic, productive or creative and receptive or perceptive, processes. In chemistry, a neutral solution is neither acidic nor basic and has a pH of 7. en.wikipedia.org /wiki/Neutral   (133 words)

Advogato's trust metric This is actually done by running the basic trust metric three times, using the "level" value in the certificate as a threshold. Advogato performs certification to three different levels: Apprentice, Journeyer, and Master. The goal of the trust metric is to accept as many valid accounts as possible, while also reducing the impact of attackers. www.advogato.org /trust-metric.html   (133 words)

42 (number) - Wikipedia, the free encyclopedia Ross 42 is a magnitude 11.52 dM4 e red dwarf nearby star (14.1 pc) in Orion, also known as Gliese 206, G097-047, and GCTP 1259.00. In the ancient Chinese text the Tao Te Ching by Lao Tsu the chapter 42 is an explanation of the universe. 42 is one of the "Lost Numbers" on the television show Lost, along with 4, 8, 15, 16 and 23. en.wikipedia.org /wiki/42_(number)   (1367 words)

Level design: Facts and details from Encyclopedia Topic A level editor (also map editor and map maker) is a software application used to design levels, missions, "backgrounds" or "maps" for a videogame.... A level designer is a person who creates levels for computer gamecomputer and/or video games using a specific set of programs.... In computer and video games, a level (sometimes called a stage, course, round, world, map or landscape) is a separate area in... www.absoluteastronomy.com /encyclopedia/l/le/level_design.htm   (1140 words)

Level design - Wikipedia, the free encyclopedia Level design is a process used in the majority of video games in a variety of genres, such as platform games, puzzle games, adventure games, computer role-playing games and even driving games. Level design or game mapping is the creation of levels—locales, stages, or missions—for a video game (such as a console game or computer game). In multiplayer maps, it's problematic if a player is able to reach visible areas of the map that the level designer didn't expect them to go, for example, reaching a rooftop where players aren't usually able to go, and camping there (killing other players unexpectedly). en.wikipedia.org /wiki/Level_design   (1340 words)

Fermi level and Fermi function The Fermi level is referred to as the electron chemical potential in other contexts. In doped semiconductors, p-type and n-type, the Fermi level is shifted by the impurities, illustrated by their band gaps. At higher temperatures a certain fraction, characterized by the Fermi function, will exist above the Fermi level. hyperphysics.phy-astr.gsu.edu /hbase/solids/fermi.html   (934 words)

A-level - Wikipedia, the free encyclopedia A-levels are also taken in many former British colonies, such as Hong Kong, Singapore, South Africa, Malta and the former British West Indies, although today they differ from the A-levels taken in the United Kingdom. Therefore, with the introduction of the new revised A-levels in 2001, the grade N was finally dropped. While many universities do not consider an A-level in General Studies to be a stand-alone subject (and thus is not accepted as part of an offer), it may affect the offer which a student receives. en.wikipedia.org /wiki/A-Level   (934 words)

Sound pressure level - Wikipedia, the free encyclopedia The most common means is measuring the sound pressure level from the speaker with the measuring device placed directly in front of and one meter away from the source. Since the human ear does not have a flat spectral response, sound pressure levels are often frequency weighted so that the measured level will match perceived sound level. Particle velocity level (sometimes called Sound velocity level) (SVL) en.wikipedia.org /wiki/Sound_pressure_level   (934 words)

Sound Sounds that are sine waves with a single pair of frequency and amplitude components are generally perceived as a pure tone. Sound is defined as a mechanical compression and rarefaction or a longitudinal displacement wave that propagates through a medium (solid, liquid or gas). While the sound may still be referred to in general use as a single frequency (for example, a piano striking the A above middle C is said to be playing a note at 440 Hz) the sound you perceive will be colored by all of the frequency components and their relative amplitudes (see timbre.) www.brainyencyclopedia.com /encyclopedia/s/so/sound.html   (934 words)

Level Level of measurement The level of measurement of a descriptive statistics and significance tests that are appropriate de... Service Level Agreement A Service Level Agreement (known as an SLA) is a formal written agreement made between two parti... Scalp Level, Pennsylvania Scalp Level is a borough located in 2000 census, the borough had a total population of 851. www.brainyencyclopedia.com /topics/level.html   (934 words)

Resistance (technical analysis) - Wikipedia, the free encyclopedia For this reason, many traders believe that the stronger the resistance, the less likely the price will break through that level. The resistance level is the highest price a security trades at over a period of time. The more often the price reaches a particular level of resistance and fails to break through, the stronger the resistance at that level. en.wikipedia.org /wiki/Resistance_level   (102 words)

Knowledge - Wikipedia, the free encyclopedia Knowledge management seeks to understand the way in which knowledge is used and traded within organisations and treats knowledge as self-referential and recursive. On a more practical level, knowledge is commonly shared by groups of people and in this context it can be manipulated and managed in various ways. Some methods of generating knowledge, such as trial and error, or learning from experience, tend to create highly situational knowledge. en.wikipedia.org /wiki/Knowledge   (669 words)

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