|
Synthesis Trifluoromethanesulfonic Acid 1
Synthesis or synthesize may refer to: Science Chemistry and biochemistry *Chemical synthesis, the execution of chemical reactions to form a more complex molecule from chemical precursors **Organic synthesis, the chemical synthesis of organic compounds ***Total synthesis, the complete organic synthesis of complex organic compounds, usually without the aid of biological processes *** Convergent synthesis or linear synthesis, a strategy to improve the efficiency of multi-step chemical syntheses ** Dehydration synthesis, a chemical synthesis resulting in the loss of a water molecule *Biosynthesis, the creation of an organic compound in a living organism, usually aided by enzymes **Photosynthesis, a biochemical reaction using a carbon molecule to produce an organic molecule, using sunlight as a catalyst **Chemosynthesis, the synthesis of biological compounds into organic waste, using methane or an oxidized molecule as a catalyst **Amino acid synthesis, the synthesis of an amino ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Synthesis
Chemical synthesis (chemical combination) is the artificial execution of chemical reactions to obtain one or several products. This occurs by physical and chemical manipulations usually involving one or more reactions. In modern laboratory uses, the process is reproducible and reliable. A chemical synthesis involves one or more compounds (known as '' reagents'' or ''reactants'') that will experience a transformation under certain conditions. Various reaction types can be applied to formulate a desired product. This requires mixing the compounds in a reaction vessel, such as a chemical reactor or a simple round-bottom flask. Many reactions require some form of processing (" work-up") or purification procedure to isolate the final product. The amount produced by chemical synthesis is known as the '' reaction yield''. Typically, yields are expressed as a mass in grams (in a laboratory setting) or as a percentage of the total theoretical quantity that could be produced based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kinematic Synthesis
In mechanical engineering, kinematic synthesis (also known as mechanism synthesis) determines the size and configuration of Mechanism (engineering), mechanisms that shape the flow of power through a mechanical system, or machine, to achieve a desired performance. The word ''synthesis'' refers to combining parts to form a whole. Hartenberg and Denavit describe kinematic synthesis asHartenberg, R.S. and J. Denavit (1964Kinematic synthesis of linkages New York: McGraw-Hill — Online link from Cornell University. ...it is design, the creation of something new. Kinematically, it is the conversion of a motion idea into hardware. The earliest machines were designed to amplify human and animal effort, later gear trains and linkage systems captured wind and flowing water to rotate millstones and pumps. Now machines use chemical and electric power to manufacture, transport, and process items of all types. And kinematic synthesis is the collection of techniques for designing thos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthesis (The Cryan' Shames Album)
''Synthesis'' is the third album by The Cryan' Shames and was released in 1968. It contains some lineup changes from their second album, '' A Scratch in the Sky''. Drummer Dennis Conroy was replaced by Alan Dawson, and Jim Fairs moved on with Dave Carter on guitar. "Greenburg, Glickstein, Charles, David, Smith and Jones" was covered by Proto-Kaw on their 2004 album '' Before Became After''. Reception In a retrospective review for ''Allmusic'', Richie Unterberger said that the Cryan' Shames were "among the most versatile mainstream pop/rock groups of the late '60s. Versatile does not mean great, though, or especially interesting, and can also mean an absence of a solid identity." He found that while the album exhibited some strengths in the arrangements and vocal harmonies, its eclectic mix of styles makes the band come off like pop musicians toying with psychedelic and progressive elements in an attempt to seem more hip. Track listing ;Side 1 #"Greenburg, Glickstein, Charles, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthetic Language
A synthetic language is a language that is characterized by denoting syntactic relationships between words via inflection or agglutination. Synthetic languages are statistically characterized by a higher morpheme-to-word ratio relative to analytic languages. Fusional languages favor inflection and agglutinative languages favor agglutination. Further divisions include polysynthetic languages (most belonging to an agglutinative-polysynthetic subtype, although Navajo and other Athabaskan languages are often classified as belonging to a fusional subtype) and oligosynthetic languages (only found in constructed languages). In contrast, rule-wise, the analytic languages rely more on auxiliary verbs and word order to denote syntactic relationship between words. Adding morphemes to a root word is used in inflection to convey a grammatical property of the word, such as denoting a subject or an object. Combining two or more morphemes into one word is used in agglutinating l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Priori And A Posteriori
('from the earlier') and ('from the later') are Latin phrases used in philosophy to distinguish types of knowledge, justification, or argument by their reliance on experience. knowledge is independent from any experience. Examples include mathematics,Some associationist philosophers have contended that mathematics comes from experience and is not a form of any ''a priori'' knowledge () tautologies and deduction from pure reason. Galen Strawson has stated that an argument is one in which "you can see that it is true just lying on your couch. You don't have to get up off your couch and go outside and examine the way things are in the physical world. You don't have to do any science." () knowledge depends on empirical evidence. Examples include most fields of science and aspects of personal knowledge. The terms originate from the analytic methods found in '' Organon'', a collection of works by Aristotle. Prior analytics () is about deductive logic, which comes from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bloom's Taxonomy
Bloom's taxonomy is a framework for categorizing Educational aims and objectives, educational goals, developed by a committee of educators chaired by Benjamin Bloom in 1956. It was first introduced in the publication ''Taxonomy of Educational Objectives: The Classification of Educational Goals''. The taxonomy divides learning objectives into three broad domains: cognitive (knowledge-based), affective (emotion-based), and psychomotor (action-based), each with a hierarchy of skills and abilities. These domains are used by educators to structure curricula, assessments, and teaching methods to foster different types of learning. The cognitive domain, the most widely recognized component of the taxonomy, was originally divided into six levels: Knowledge, Comprehension, Application, Analysis, Synthesis, and Evaluation. In 2001, this taxonomy was revised, renaming and reordering the levels as Remember, Understand, Apply, Analyze, Evaluate, and Create. This domain focuses on intellectual s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thesis, Antithesis, Synthesis
Dialectic (; ), also known as the dialectical method, refers originally to dialogue between people holding different points of view about a subject but wishing to arrive at the truth through reasoned argument. Dialectic resembles debate, but the concept excludes subjective elements such as emotional appeal and rhetoric. It has its origins in ancient philosophy and continued to be developed in the Middle Ages. Hegelianism refigured "dialectic" to no longer refer to a literal dialogue. Instead, the term takes on the specialized meaning of development by way of overcoming internal contradictions. Dialectical materialism, a theory advanced by Karl Marx and Friedrich Engels, adapted the Hegelian dialectic into a materialist theory of history. The legacy of Hegelian and Marxian dialectics has been criticized by philosophers, such as Karl Popper and Mario Bunge, who considered it unscientific. Dialectic implies a developmental process and so does not fit naturally within cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speech Synthesis
Speech synthesis is the artificial production of human speech. A computer system used for this purpose is called a speech synthesizer, and can be implemented in software or hardware products. A text-to-speech (TTS) system converts normal language text into speech; other systems render symbolic linguistic representations like phonetic transcriptions into speech. The reverse process is speech recognition. Synthesized speech can be created by concatenating pieces of recorded speech that are stored in a database. Systems differ in the size of the stored speech units; a system that stores phones or diphones provides the largest output range, but may lack clarity. For specific usage domains, the storage of entire words or sentences allows for high-quality output. Alternatively, a synthesizer can incorporate a model of the vocal tract and other human voice characteristics to create a completely "synthetic" voice output. The quality of a speech synthesizer is judged by its similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Modulation Synthesis
Frequency modulation synthesis (or FM synthesis) is a form of Synthesizer#Sound synthesis, sound synthesis whereby the frequency of a waveform is changed by Frequency modulation, modulating its frequency with a modulator. The instantaneous frequency, (instantaneous) frequency of an oscillator is altered in accordance with the amplitude of a modulating signal. FM synthesis can create both harmonic and Inharmonicity, inharmonic sounds. To synthesize harmonic sounds, the modulating signal must have a harmonic relationship to the original carrier signal. As the amount of frequency modulation increases, the sound grows progressively complex. Through the use of modulators with frequencies that are non-integer multiples of the carrier signal (i.e. inharmonic), inharmonic bell-like and percussive spectra can be created. FM synthesis using analog oscillators may result in pitch instability. However, FM synthesis can also be implemented digitally, which is more stable and became standard pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subtractive Synthesis
Subtractive synthesis is a method of sound synthesis in which Harmonic_series_(music)#Partial.2C_harmonic.2C_fundamental.2C_inharmonicity.2C_and_overtone, overtones of an audio signal are attenuated by a audio filter, filter to alter the timbre of the sound. Overview Subtractive synthesis relies on source sounds that have overtones, such as Sine wave, non-sinusoidal waveforms like Square wave (waveform), square and triangle wave, triangle waves, or white noise, white and pink noise. These overtones are then Modulation, modulated to alter the source sound. This modulation can happen in a wide variety of ways, such as Voltage-controlled filter, voltage-controlled or low-pass filter, low-pass filters. The technology developed in experimental electronic studios which were primarily focused on telecommunications and military applications. Early examples include Bell Labs' Voder (1937–8). Composers began applying the concept of subtractive synthesis beyond the recording studio in conc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave Field Synthesis
Wave field synthesis (WFS) is a spatial audio rendering technique, characterized by creation of virtual acoustic environments. It produces ''artificial'' wavefronts synthesized by a large number of individually driven loudspeakers from elementary waves. Such wavefronts seem to originate from a virtual starting point, the virtual sound source. Contrary to traditional phantom sound sources, the localization of WFS established virtual sound sources does not depend on the listener's position. Like a genuine sound source the virtual source remains at fixed starting point. Physical fundamentals WFS is based on the Huygens–Fresnel principle, which states that any wavefront can be regarded as a superposition of spherical elementary waves. Therefore, any wavefront can be synthesized from such elementary waves. In practice, a computer controls a large array of individual loudspeakers and actuates each one exactly by the time and level at which the desired virtual wavefront would pas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synthesizer
A synthesizer (also synthesiser or synth) is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms through methods including subtractive synthesis, additive synthesis and frequency modulation synthesis. These sounds may be altered by components such as filters, which cut or boost frequencies; envelopes, which control articulation, or how notes begin and end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter characteristics affecting timbre. Synthesizers are typically played with keyboards or controlled by sequencers, software or other instruments, and may be synchronized to other equipment via MIDI. Synthesizer-like instruments emerged in the United States in the mid-20th century with instruments such as the RCA Mark II, which was controlled with punch cards and used hundreds of vacuum tubes. The Moog synthesizer, developed by Robert Moog and first so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
