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Potassium humate is the potassium salt of humic acid . It is manufactured commercially by alkaline extraction of brown coal (lignite) leonardite and is used mainly as a soil conditioner . [ 1 ]
The extraction is performed in water with the addition of potassium hydroxide (KOH), sequestering agents, and hydrotropic sur... | https://en.wikipedia.org/wiki/Potassium_humate |
Potassium hydroxide is an inorganic compound with the formula K OH , and is commonly called caustic potash .
Along with sodium hydroxide (NaOH), KOH is a prototypical strong base . It has many industrial and niche applications, most of which utilize its caustic nature and its reactivity toward acids . An estimated 700... | https://en.wikipedia.org/wiki/Potassium_hydroxide |
Potassium hypochlorite is a chemical compound with the chemical formula K O Cl , also written as KClO. It is the potassium salt of hypochlorous acid . It consists of potassium cations ( K + ) and hypochlorite anions ( − OCl ). It is used in variable concentrations, often diluted in water solution. Its aqueous solutions... | https://en.wikipedia.org/wiki/Potassium_hypochlorite |
Potassium is the main intracellular ion for all types of cells , while having a major role in maintenance of fluid and electrolyte balance. [ 1 ] [ 2 ] Potassium is necessary for the function of all living cells and is thus present in all plant and animal tissues. It is found in especially high concentrations within pl... | https://en.wikipedia.org/wiki/Potassium_in_biology |
Potassium iodate ( K I O 3 ) is an ionic inorganic compound with the formula KIO 3 . It is a white salt that is soluble in water. [ 1 ]
It can be prepared by reacting a potassium-containing base such as potassium hydroxide with iodic acid , for example: [ 1 ]
It can also be prepared by adding iodine to a hot, concen... | https://en.wikipedia.org/wiki/Potassium_iodate |
Potassium iodide is a chemical compound , medication , and dietary supplement . [ 3 ] [ 4 ] It is a medication used for treating hyperthyroidism , in radiation emergencies , and for protecting the thyroid gland when certain types of radiopharmaceuticals are used. [ 5 ] It is also used for treating skin sporotrichosis a... | https://en.wikipedia.org/wiki/Potassium_iodide |
Potassium nitrate is an oxidizer so storing it near fire hazards or reducing agents should be avoided to minimise risk in case of a fire.
Synonyms : Saltpetre; Niter/Nitre; Nitric acid potassium salt; Salt Peter CAS No. : 7757-79-1 Molecular Weight : 101.1 Chemical Formula : K N O 3 [ 1 ]
Emergency Overview Danger - ... | https://en.wikipedia.org/wiki/Potassium_nitrate_(data_page) |
Potassium nitrite (distinct from potassium nitrate ) is the inorganic compound with the chemical formula K N O 2 . It is an ionic salt of potassium ions K + and nitrite ions NO 2 − , which forms a white or slightly yellow, hygroscopic crystalline powder that is soluble in water. [ 1 ]
It is a strong oxidizer and may a... | https://en.wikipedia.org/wiki/Potassium_nitrite |
Potassium oxide ( K 2 O ) is an ionic compound of potassium and oxygen . It is a base . This pale yellow solid is the simplest oxide of potassium. It is a highly reactive compound that is rarely encountered. Some industrial materials, such as fertilizers and cements, are assayed assuming the percent composition that w... | https://en.wikipedia.org/wiki/Potassium_oxide |
Potassium pentasulfide is the inorganic compound with the formula K 2 S 5 . It is a red-orange solid that dissolves in water. The salt decomposes rapidly in air.
It is one of several polysulfide salts with the general formula M 2 S n , where M = Li, Na, K and n = 2, 3, 4, 5, 6. [ 1 ] The polysulfide salts of potassium ... | https://en.wikipedia.org/wiki/Potassium_pentasulfide |
Potassium periodate is an inorganic salt with the molecular formula KIO 4 . It is composed of a potassium cation and a periodate anion and may also be regarded as the potassium salt of periodic acid . Note that the pronunciation is per-iodate, not period-ate.
Unlike other common periodates, such as sodium periodate an... | https://en.wikipedia.org/wiki/Potassium_periodate |
Potassium permanganate is an inorganic compound with the chemical formula KMnO 4 . It is a purplish-black crystalline salt, which dissolves in water as K + and MnO − 4 ions to give an intensely pink to purple solution.
Potassium permanganate is widely used in the chemical industry and laboratories as a strong oxidizin... | https://en.wikipedia.org/wiki/Potassium_permanganate |
Potassium peroxide is an inorganic compound with the molecular formula K 2 O 2 . It is formed as potassium reacts with oxygen in the air, along with potassium oxide (K 2 O) and potassium superoxide (KO 2 ).
Potassium peroxide reacts with water to form potassium hydroxide and oxygen :
Potassium peroxide is a highly r... | https://en.wikipedia.org/wiki/Potassium_peroxide |
Potassium peroxymonosulfate is widely used as an oxidizing agent , for example, in pools and spas (usually referred to as monopersulfate or "MPS"). It is the potassium salt of peroxymonosulfuric acid . Potassium peroxymonosulfate per se is rarely encountered. It is often confused with the triple salt 2KHSO 5 ·KHSO 4 ·... | https://en.wikipedia.org/wiki/Potassium_peroxymonosulfate |
Potassium persulfate is the inorganic compound with the formula K 2 S 2 O 8 . Also known as potassium peroxydisulfate , it is a white solid that is sparingly soluble in cold water, but dissolves better in warm water. This salt is a powerful oxidant, commonly used to initiate polymerizations .
The sodium and potassium ... | https://en.wikipedia.org/wiki/Potassium_persulfate |
Potassium picrate , or potassium 2,4,6-trinitrophenolate , is an organic chemical, a picrate of potassium . It is a reddish yellow or green crystalline material. It is a primary explosive . Anhydrous potassium picrate forms orthorhombic crystals.
Potassium picrate was first prepared in impure form in the mid 17th cen... | https://en.wikipedia.org/wiki/Potassium_picrate |
Potassium sodium tartrate tetrahydrate , also known as Rochelle salt , is a double salt of tartaric acid first prepared (in about 1675) by an apothecary , Élie Seignette [ fr ] , of La Rochelle , France. Potassium sodium tartrate and monopotassium phosphate were the first materials discovered to exhibit piezoelectricit... | https://en.wikipedia.org/wiki/Potassium_sodium_tartrate |
Potassium spatial buffering is a mechanism for the regulation of extracellular potassium concentration by astrocytes . Other mechanisms for astrocytic potassium clearance are carrier-operated or channel-operated potassium chloride uptake. [ 1 ] The repolarization of neurons tends to raise potassium concentration in the... | https://en.wikipedia.org/wiki/Potassium_spatial_buffering |
Potassium sulfide is an inorganic compound with the formula K 2 S . The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH). Most commonly, the term potassium sulfide refers loosely to this mixture, not the anh... | https://en.wikipedia.org/wiki/Potassium_sulfide |
Potassium superoxide is an inorganic compound with the formula K O 2 . [ 6 ] It is a yellow paramagnetic solid that decomposes in moist air. It is a rare example of a stable salt of the superoxide anion. It is used as a CO 2 scrubber, H 2 O dehumidifier, and O 2 generator in rebreathers , spacecraft , submarines , and ... | https://en.wikipedia.org/wiki/Potassium_superoxide |
Potassium tert -butoxide (or potassium t -butoxide ) is a chemical compound with the formula [(CH 3 ) 3 COK] n (abbr. KOtBu). This colourless solid is a strong base (pKa of conjugate acid is 17 in H 2 O), [ 3 ] which is useful in organic synthesis . The compound is often depicted as a salt, and it often behaves as suc... | https://en.wikipedia.org/wiki/Potassium_tert-butoxide |
Potassium tetraiodomercurate(II) is an inorganic compound with the chemical formula K 2 [ Hg I 4 ] . It consists of potassium cations and tetraiodomercurate(II) anions. It is the active agent in Nessler's reagent, used for detection of ammonia . [ 2 ]
The compound crystallizes from a heated solution of mercuric iodide... | https://en.wikipedia.org/wiki/Potassium_tetraiodomercurate(II) |
Potassium peroxochromate , potassium tetraperoxochromate(V) , or simply potassium perchromate , is an inorganic compound having the chemical formula K 3 [ Cr ( O 2 ) 4 ] . It is a red-brown paramagnetic solid. It is the potassium salt of tetraperoxochromate(V), one of the few examples of chromium in the +5 oxidation st... | https://en.wikipedia.org/wiki/Potassium_tetraperoxochromate(V) |
Potassium thioacetate is an organosulfur compound and a salt with the formula CH 3 COS − K + . This white, water-soluble solid is used as a reagent for preparing thioacetate esters and other derivatives. [ 1 ]
Potassium thioacetate, which is commercially available, can be prepared by combining acetyl chloride and pot... | https://en.wikipedia.org/wiki/Potassium_thioacetate |
Potato root nematodes or potato cyst nematodes ( PCN ) are 1-mm long roundworms belonging to the genus Globodera , which comprises around 12 species. They live on the roots of plants of the family Solanaceae , such as potatoes and tomatoes . PCN cause growth retardation and, at very high population densities, damage to... | https://en.wikipedia.org/wiki/Potato_cyst_nematode |
The potato paradox is a mathematical calculation that has a result which seems counter-intuitive to many people. The Universal Book of Mathematics states the problem as such: [ 1 ]
Fred brings home 100 kg of potatoes, which (being purely mathematical potatoes) consist of 99% water. He then leaves them outside overnigh... | https://en.wikipedia.org/wiki/Potato_paradox |
A potential energy surface ( PES ) or energy landscape describes the energy of a system , especially a collection of atoms, in terms of certain parameters , normally the positions of the atoms. The surface might define the energy as a function of one or more coordinates; if there is only one coordinate, the surface is ... | https://en.wikipedia.org/wiki/Potential_energy_surface |
In fluid dynamics , potential flow or irrotational flow refers to a description of a fluid flow with no vorticity in it. Such a description typically arises in the limit of vanishing viscosity , i.e., for an inviscid fluid and with no vorticity present in the flow.
Potential flow describes the velocity field as the gr... | https://en.wikipedia.org/wiki/Potential_flow |
In mathematics , potential flow around a circular cylinder is a classical solution for the flow of an inviscid , incompressible fluid around a cylinder that is transverse to the flow. Far from the cylinder, the flow is unidirectional and uniform. The flow has no vorticity and thus the velocity field is irrotational and... | https://en.wikipedia.org/wiki/Potential_flow_around_a_circular_cylinder |
In physics , chemistry and biology , a potential gradient is the local rate of change of the potential with respect to displacement , i.e. spatial derivative , or gradient . This quantity frequently occurs in equations of physical processes because it leads to some form of flux .
The simplest definition for a potentia... | https://en.wikipedia.org/wiki/Potential_gradient |
In mathematical logic and in particular in model theory , a potential isomorphism is a collection of finite partial isomorphisms between two models which satisfies certain closure conditions. Existence of a partial isomorphism entails elementary equivalence , however the converse is not generally true, but it holds for... | https://en.wikipedia.org/wiki/Potential_isomorphism |
In ecology , potential natural vegetation ( PNV ), also known as Kuchler potential vegetation, is the vegetation that would be expected given environmental constraints ( climate , geomorphology , geology ) without human intervention or a hazard event.
The concept was developed in the mid 1950s by phytosociologist Rein... | https://en.wikipedia.org/wiki/Potential_natural_vegetation |
When examining a system computationally one may be interested in knowing how the free energy changes as a function of some inter- or intramolecular coordinate (such as the distance between two atoms or a torsional angle). The free energy surface along the chosen coordinate is referred to as the potential of mean force ... | https://en.wikipedia.org/wiki/Potential_of_mean_force |
Potential renal acid load (PRAL) is a measure of the acid that the body produces after ingesting a food. This is different from pH, which is the acidity of a food before being consumed. [ 1 ] [ 2 ] PRAL is a different acidity measure than the food ash measurement. [ 3 ]
Some acidic foods actually have a negative PRAL ... | https://en.wikipedia.org/wiki/Potential_renal_acid_load |
In anatomy , a potential space is a space between two adjacent structures that are normally pressed together (directly apposed). Many anatomic spaces are potential spaces, which means that they are potential rather than realized (with their realization being dynamic according to physiologic or pathophysiologic events).... | https://en.wikipedia.org/wiki/Potential_space |
A potential well is the region surrounding a local minimum of potential energy . Energy captured in a potential well is unable to convert to another type of energy ( kinetic energy in the case of a gravitational potential well) because it is captured in the local minimum of a potential well. Therefore, a body may not p... | https://en.wikipedia.org/wiki/Potential_well |
A potentially hazardous object ( PHO ) is a near-Earth object – either an asteroid or a comet – with an orbit that can make close approaches to the Earth and which is large enough to cause significant regional damage in the event of impact . [ 1 ] They are conventionally defined as having a minimum orbit intersection d... | https://en.wikipedia.org/wiki/Potentially_hazardous_object |
In clinical terms, a potentiator is a reagent that enhances sensitization of an antigen . Potentiators are used in the clinical laboratory for performing blood banking procedures that require enhancement of agglutination to detect the presence of antibodies or antigens in a patient's blood sample. Examples of potentiat... | https://en.wikipedia.org/wiki/Potentiator |
A potentiometer is an instrument for measuring voltage or 'potential difference' by comparison of an unknown voltage with a known reference voltage . If a sensitive indicating instrument is used, very little current is drawn from the source of the unknown voltage. Since the reference voltage can be produced from an acc... | https://en.wikipedia.org/wiki/Potentiometer_(measuring_instrument) |
A potentiometric sensor is a type of chemical sensor that may be used to determine the analytical concentration of some components of the analyte gas or solution . These sensors measure the electrical potential of an electrode when no current is present.
The signal is measured as the potential difference (voltage) be... | https://en.wikipedia.org/wiki/Potentiometric_sensor |
A potentiometric surface is the imaginary plane where a given reservoir of fluid will "equalize out to" if allowed to flow. A potentiometric surface is based on hydraulic principles. For example, two connected storage tanks with one full and one empty will gradually fill/drain to the same level. This is because of atmo... | https://en.wikipedia.org/wiki/Potentiometric_surface |
In analytical chemistry , potentiometric titration is a technique similar to direct titration of a redox reaction. It is a useful means of characterizing an acid . No indicator is used; instead the electric potential is measured across the analyte , typically an electrolyte solution. To do this, two electrodes are used... | https://en.wikipedia.org/wiki/Potentiometric_titration |
A potentiostat is the electronic hardware required to control a three electrode cell and run most electroanalytical experiments. A Bipotentiostat and polypotentiostat are potentiostats capable of controlling two working electrodes and more than two working electrodes, respectively. [ 1 ] [ 2 ] [ 3 ] [ 4 ]
The system ... | https://en.wikipedia.org/wiki/Potentiostat |
A pothole is a pot-shaped depression in a road surface , [ 1 ] usually asphalt pavement , where traffic has removed broken pieces of the pavement. It is usually the result of water in the underlying soil structure and traffic passing over the affected area. Water first weakens the underlying soil; traffic then fatigues... | https://en.wikipedia.org/wiki/Pothole |
A potion is a liquid "that contains medicine , poison , or something that is supposed to have magic powers." [ 1 ] It derives from the Latin word potio which refers to a drink or the act of drinking. [ 2 ] The term philtre is also used, often specifically to describe a love potion , a potion that is believed to induce ... | https://en.wikipedia.org/wiki/Potion |
Potocytosis is a type of receptor-mediated endocytosis in which small molecules are transported across the plasma membrane of a cell . The molecules are transported by caveolae (rather than clathrin -coated vesicles) and are deposited directly into the cytosol . [ 1 ]
Like other types of receptor-mediated endocytosis,... | https://en.wikipedia.org/wiki/Potocytosis |
A potometer' (from Greek ποτό = drunken, and μέτρο = measure), sometimes known as transpirometer , is a device used for measuring the rate of water uptake of a leafy shoot which is almost equal to the water lost through transpiration. The causes of water uptake are photosynthesis and transpiration . [ 1 ]
The rate of ... | https://en.wikipedia.org/wiki/Potometer |
PottersWheel is a MATLAB toolbox for mathematical modeling of time-dependent dynamical systems that can be expressed as chemical reaction networks or ordinary differential equations (ODEs). [ 1 ] It allows the automatic calibration of model parameters by fitting the model to experimental measurements. CPU-intensive fun... | https://en.wikipedia.org/wiki/PottersWheel |
In statistical mechanics , the Potts model , a generalization of the Ising model , is a model of interacting spins on a crystalline lattice . [ 1 ] By studying the Potts model, one may gain insight into the behaviour of ferromagnets and certain other phenomena of solid-state physics . The strength of the Potts model i... | https://en.wikipedia.org/wiki/Potts_model |
In physics and chemical engineering , the term Pouillet effect refers to an exothermic reaction that takes place when a liquid is added to a powder. Strictly speaking, the heat generated is caused by adhesion of the liquid to the surface of the particles rather than by a chemical reaction. [ 1 ] It was first observed i... | https://en.wikipedia.org/wiki/Pouillet_effect |
Poul Jørgensen (born 2 March 1944 in Silkeborg , Denmark) is professor of chemistry at the Department of Chemistry, Aarhus University (AU), Denmark and director of the qLEAP Center for Theoretical Chemistry at AU, [ 1 ] which was established in April 2012.
Jørgensen has made seminal contributions to the field of elect... | https://en.wikipedia.org/wiki/Poul_Jørgensen_(chemist) |
The pour point of a liquid is the temperature below which the liquid loses its flow characteristics.
It is defined as the minimum temperature in which the oil has the ability to pour down from a beaker. [ 1 ] [ 2 ] In crude oil a high pour point is generally associated with a high paraffin content, typically found in c... | https://en.wikipedia.org/wiki/Pour_point |
In electrochemistry , and more generally in solution chemistry, a Pourbaix diagram , also known as a potential/pH diagram , E H –pH diagram or a pE/pH diagram , is a plot of possible thermodynamically stable phases ( i.e. , at chemical equilibrium ) of an aqueous electrochemical system. Boundaries (50 %/50 %) between t... | https://en.wikipedia.org/wiki/Pourbaix_diagram |
The Pournelle chart , developed by Jerry Pournelle in his 1963 political science Ph.D. dissertation, is a two-dimensional coordinate system which can be used to distinguish political ideologies . It is similar to the political compass and the Nolan Chart in that it is a two-dimensional chart, but the axes of the Pourne... | https://en.wikipedia.org/wiki/Pournelle_chart |
In number theory , a branch of mathematics , the Poussin proof is the proof of an identity related to the fractional part of a ratio .
In 1838, Peter Gustav Lejeune Dirichlet proved an approximate formula for the average number of divisors of all the numbers from 1 to n:
where d represents the divisor function , and ... | https://en.wikipedia.org/wiki/Poussin_proof |
The Povarov reaction is an organic reaction described as a formal cycloaddition between an aromatic imine and an alkene . The imine in this organic reaction is a condensation reaction product from an aniline type compound and a benzaldehyde type compound. [ 1 ] [ 2 ] [ 3 ] The alkene must be electron rich which means t... | https://en.wikipedia.org/wiki/Povarov_reaction |
Powa Technologies was a UK-based technology company, known for its commerce, mobile commerce and e-commerce services.
The company’s flagship product was the mobile application PowaTag . [ 1 ] In February 2016, investment company Wellington Management appointed professional services firm Deloitte as administrators of Po... | https://en.wikipedia.org/wiki/Powa_Technologies |
Powder coating on glass is a specialized procedure related to traditional powder coating , which is the technique of applying electrostatically charged, dry powdered particles of pigment and resin to a solid item's surface. It requires its own unique process, however, because glass is a poor electrical conductor in com... | https://en.wikipedia.org/wiki/Powder_coating_on_glass |
Powder Deaerators (also powder compactor or powder densifier ) are working apparatuses for deaerating and compacting of dry, fine-grained powders. The machine removes excess air and open spaces in the powder, leaving it a more solid, compact, material.
Powder Deaerators consist of two parallel drums – a filter drum an... | https://en.wikipedia.org/wiki/Powder_deaerator |
Powder metallurgy ( PM ) is a term covering a wide range of ways in which materials or components are made from metal powders . PM processes are sometimes used to reduce or eliminate the need for subtractive processes in manufacturing, lowering material losses and reducing the cost of the final product. [ 1 ] This occu... | https://en.wikipedia.org/wiki/Powder_metallurgy |
A powder is an assembly of dry particles dispersed in air. If two different powders are mixed perfectly, theoretically, three types of powder mixtures can be obtained: the random mixture, the ordered mixture or the interactive mixture.
A powder is called free-flowing if the particles do not stick together. If particle... | https://en.wikipedia.org/wiki/Powder_mixture |
Powder of sympathy was a form of early pseudoscientific navigation and alchemy , in the 17th century in Europe , whereby a remedy was applied to the weapon that had caused a wound with the aim of healing the injury it had made. Weapon salve was a preparation, again applied to the weapon, but based on material from the ... | https://en.wikipedia.org/wiki/Powder_of_sympathy |
Powel Crosley Jr. (September 18, 1886 – March 28, 1961) was an American inventor , industrialist , and entrepreneur . He was also a pioneer in radio broadcasting and owner of the Cincinnati Reds major league baseball team. In addition, Crosley's companies manufactured Crosley automobiles and radios, and operated WLW ra... | https://en.wikipedia.org/wiki/Powel_Crosley_Jr. |
A power quantity is a power or a quantity directly proportional to power , e.g., energy density , acoustic intensity , and luminous intensity . [ 1 ] Energy quantities may also be labelled as power quantities in this context. [ 2 ]
A root-power quantity is a quantity such as voltage , current , sound pressure , electr... | https://en.wikipedia.org/wiki/Power,_root-power,_and_field_quantities |
Power-system automation is the act of automatically controlling the power system via instrumentation and control devices. Substation automation refers to using data from Intelligent electronic devices (IED), control and automation capabilities within the substation, and control commands from remote users to control pow... | https://en.wikipedia.org/wiki/Power-system_automation |
Power-to-weight ratio ( PWR , also called specific power , or power-to-mass ratio ) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power source. It is also used... | https://en.wikipedia.org/wiki/Power-to-weight_ratio |
Power-voltage curve (also P-V curve ) describes the relationship between the active power delivered to the electrical load and the voltage at the load terminals in an electric power system under a constant power factor . [ 1 ] When plotted with power as a horizontal axis, the curve resembles a human nose, thus it is so... | https://en.wikipedia.org/wiki/Power-voltage_curve |
PowerCLI is a PowerShell -based command-line interface for managing VMware vSphere .
VMware describes PowerCLI as "a powerful command-line tool that lets you automate all aspects of vSphere management, including network, storage, VM , guest OS and more. PowerCLI is distributed as PowerShell modules, and includes over ... | https://en.wikipedia.org/wiki/PowerCLI |
Powerfleet, Inc. (formerly I.D. Systems, Inc. ) is an American company headquartered in Woodcliff Lake, New Jersey , with offices located around the globe and a technology innovation center in Israel. The company is a global provider of wireless IoT and M2M solutions [ buzzword ] for securing, controlling, tracking, an... | https://en.wikipedia.org/wiki/PowerFleet |
PowerLab (before 1998 was referred to as MacLab) is a data acquisition system developed by ADInstruments comprising hardware and software and designed for use in life science research [ 1 ] and teaching applications. It is commonly used in physiology, pharmacology, biomedical engineering, sports/exercise studies and ps... | https://en.wikipedia.org/wiki/PowerLab |
PowerPlant is an object-oriented GUI toolkit , application framework and set of class libraries for the Classic Mac OS , created by Metrowerks . The framework was fairly popular during the late (OS versions 8 and 9) Classic Mac OS era, and was primarily used with CodeWarrior . It was designed to work with a GUI editor ... | https://en.wikipedia.org/wiki/PowerPlant |
Power is the amount of energy transferred or converted per unit time. In the International System of Units , the unit of power is the watt , equal to one joule per second. Power is a scalar quantity.
Specifying power in particular systems may require attention to other quantities; for example, the power involved in mo... | https://en.wikipedia.org/wiki/Power_(physics) |
Microsoft PowerToys is a set of freeware (later open source ) system utilities designed for power users developed by Microsoft for use on the Windows operating system. These programs add or change features to maximize productivity or add more customization. PowerToys are available for Windows 95 , Windows XP , Windows ... | https://en.wikipedia.org/wiki/Power_Calculator |
The Power Distribution Equipment Identification (PDEID) ( Persian : کد شناسایی یکپارچه توزیع ) is a unique identification label used for exclusively identifying equipment and customers of the power distribution network of Iran , which has been in use since 1997. PDEID is used to simplify identifying equipment, their ... | https://en.wikipedia.org/wiki/Power_Distribution_Equipment_Identification |
Power Shift is an annual youth summit which has been held in New Zealand , Australia , Canada , the United Kingdom and the United States . [ 1 ] [ 2 ] Other Power Shift Conferences are also being organised by members of the International Youth Climate Movement including Africa , Japan and India . [ 3 ] The focus of the... | https://en.wikipedia.org/wiki/Power_Shift_(conference) |
Power alley is a term used in audio engineering to denote the line between subwoofers where output from each subwoofer is in phase and is noticeably louder.
Subwoofers placed at each side of the stage will typically cancel unpredictably everywhere in the listening area except along the center line between the speakers... | https://en.wikipedia.org/wiki/Power_alley |
In linear algebra , a power cone is a kind of a convex cone that is particularly important in modeling convex optimization problems. [ 1 ] [ 2 ] It is a generalization of the quadratic cone : the quadratic cone is defined using a quadratic equation (with the power 2), whereas a power cone can be defined using any power... | https://en.wikipedia.org/wiki/Power_cone |
Power engineering , also called power systems engineering , is a subfield of electrical engineering that deals with the generation, transmission, distribution, and utilization of electric power , and the electrical apparatus connected to such systems. Although much of the field is concerned with the problems of three-p... | https://en.wikipedia.org/wiki/Power_engineering |
In electrical engineering , the power factor of an AC power system is defined as the ratio of the real power absorbed by the load to the apparent power flowing in the circuit. Real power is the average of the instantaneous product of voltage and current and represents the capacity of the electricity for performing wor... | https://en.wikipedia.org/wiki/Power_factor |
In computational biology , power graph analysis is a method for the analysis and
representation of complex networks . Power graph analysis is the computation, analysis and visual representation of a power graph from a graph ( networks ).
Power graph analysis can be thought of as a lossless compression algorithm for g... | https://en.wikipedia.org/wiki/Power_graph_analysis |
A power loom is a mechanized loom .
The main components of the loom are the warp beam, heddles, harnesses, shuttle, reed, and takeup roll. In the loom, yarn processing includes shedding, picking, battening and taking-up operations.
With each weaving operation, the newly constructed fabric must be wound on a cloth bea... | https://en.wikipedia.org/wiki/Power_loom |
In telecommunications , the power margin is the difference between available signal power and the minimum signal power needed to overcome system losses and still satisfy the minimum input requirements of the receiver for a given performance level.
System power margin reflects the excess signal level , present at the i... | https://en.wikipedia.org/wiki/Power_margin |
The power number N p (also known as Newton number ) is a commonly used dimensionless number relating the resistance force to the inertia force .
The power-number has different specifications according to the field of application. E.g., for stirrers the power number is defined as: [ 1 ]
with
This fluid dynamics –rela... | https://en.wikipedia.org/wiki/Power_number |
A power of two is a number of the form 2 n where n is an integer , that is, the result of exponentiation with number two as the base and integer n as the exponent . In the fast-growing hierarchy , 2 n is exactly equal to f 1 n ( 1 ) {\displaystyle f_{1}^{n}(1)} . In the Hardy hierarchy , 2 n is exactly equal to H ω n (... | https://en.wikipedia.org/wiki/Power_of_two |
The efficiency of a plant is the percentage of the total energy content of a power plant 's fuel that is converted into electricity . The remaining energy is usually lost to the environment as heat unless it is used for district heating .
Rating efficiency is complicated by the fact that there are two different ways t... | https://en.wikipedia.org/wiki/Power_plant_efficiency |
Power plant engineering , abbreviated as TPTL , is a branch of the field of energy engineering , and is defined as the engineering and technology required for the production of an electric power station. [ 1 ] Technique is focused on power generation for industry and community, not just for household electricity produc... | https://en.wikipedia.org/wiki/Power_plant_engineering |
A power processing unit ( PPU ) is a circuit device that convert an electricity input from a utility line into the appropriate voltage and current to be used for the device in question. They serve the same purpose as linear amplifiers , but they are much more efficient, since the use of linear amplifiers results in mu... | https://en.wikipedia.org/wiki/Power_processing_unit |
In telecommunications, power ramp is the way in which the signal increases ("power-on ramp") or falls off ("power-down ramp"), which may result in spectral splatter .
For example, many GSM front-ends make use of a calibration table specifying the ramp shape for the power amplifier.
This article related to telecommuni... | https://en.wikipedia.org/wiki/Power_ramp |
In calculus , the power rule is used to differentiate functions of the form f ( x ) = x r {\displaystyle f(x)=x^{r}} , whenever r {\displaystyle r} is a real number . Since differentiation is a linear operation on the space of differentiable functions, polynomials can also be differentiated using this rule. The power r... | https://en.wikipedia.org/wiki/Power_rule |
In mathematics , a power series (in one variable ) is an infinite series of the form ∑ n = 0 ∞ a n ( x − c ) n = a 0 + a 1 ( x − c ) + a 2 ( x − c ) 2 + … {\displaystyle \sum _{n=0}^{\infty }a_{n}\left(x-c\right)^{n}=a_{0}+a_{1}(x-c)+a_{2}(x-c)^{2}+\dots } where a n {\displaystyle a_{n}} represents the coefficient of t... | https://en.wikipedia.org/wiki/Power_series |
A power shovel , also known as a motor shovel , stripping shovel , front shovel , mining shovel or rope shovel , [ 2 ] is a bucket-equipped machine usually powered by steam , diesel fuel , gasoline or electricity and used for digging and loading earth or fragmented rock and for mineral extraction . [ 3 ] Power shovels ... | https://en.wikipedia.org/wiki/Power_shovel |
A power station , also referred to as a power plant and sometimes generating station or generating plant , is an industrial facility for the generation of electric power . Power stations are generally connected to an electrical grid .
Many power stations contain one or more generators , rotating machine that converts ... | https://en.wikipedia.org/wiki/Power_station |
In mathematics , specifically in commutative algebra , the power sum symmetric polynomials are a type of basic building block for symmetric polynomials , in the sense that every symmetric polynomial with rational coefficients can be expressed as a sum and difference of products of power sum symmetric polynomials with r... | https://en.wikipedia.org/wiki/Power_sum_symmetric_polynomial |
In electronic systems, power supply rejection ratio ( PSRR ), also supply-voltage rejection ratio [ 1 ] ( k SVR ; SVR ), is a term widely used to describe the capability of an electronic circuit to suppress any power supply variations to its output signal.
In the specifications of operational amplifiers , the PSRR is ... | https://en.wikipedia.org/wiki/Power_supply_rejection_ratio |
In aviation, a power transfer unit ( PTU ) is a device that transfers hydraulic power from one of an aircraft's hydraulic systems to another in the event that the other system has failed or been turned off.
The PTU is used when, for example, there is right hydraulic system pressure but no left hydraulic system pressur... | https://en.wikipedia.org/wiki/Power_transfer_unit |
A power trowel (also known as a "power float" and "troweling machine") is a piece of light construction equipment used by construction companies and contractors to apply a smooth finish to concrete slabs. [ 1 ]
Power trowels differ in the way they are controlled:
A power trowel performs the tasks of several hand tool... | https://en.wikipedia.org/wiki/Power_trowel |
Powered speakers , also known as self-powered speakers and active speakers , are loudspeakers that have built-in amplifiers . Powered speakers are used in a range of settings, including in sound reinforcement systems (used at live music concerts), both for the main speakers facing the audience and the monitor speakers ... | https://en.wikipedia.org/wiki/Powered_speakers |
Crosman Corporation is an American designer, manufacturer and supplier of shooting sport products, with a long-standing presence in airgun design and a tradition of producing pellet and BB guns . Crosman is also a producer of many varieties of airgun and airsoft ammunition and CO 2 Powerlet cartridges. In addition, C... | https://en.wikipedia.org/wiki/Powerlet |
Powtoon Ltd. is a British company which sells cloud-based animation software (SaaS) for creating animated presentations and animated explainer videos. [ 1 ] The name "Powtoon" is a portmanteau of the words " PowerPoint " (trademarked by Microsoft) and " cartoon ". [ citation needed ] VR
Powtoon was founded in January ... | https://en.wikipedia.org/wiki/Powtoon |
Poxytrins or dihydroxy- E , Z , E -polyunsaturated fatty acids (dihydroxy- E , Z , E -PUFAs) are PUFA metabolites that possess two hydroxyl residues and three in-series conjugated double bonds in an E , Z , E cis–trans configuration. Poxytrins have platelet -inhibiting properties that are not found in isomers with thre... | https://en.wikipedia.org/wiki/Poxytrin |
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