wiktionary homogeneity homogeneous homogenize Homogeneity is a sameness of constituent structure. Homogeneity , homogeneous , or homogenization may also refer to Homogeneity physics , translational invariance or compatibility of units in equations Homogeneous chemistry , a property of a mixture showing no variation in properties Homogenization chemistry , intensive mixing of mutually insoluble substance or groups of substance to obtain a soluble suspension or constant Homogenization climate , the process of removing non climatic changes from climate data Homogenization biology , a process that involves breaking apart cells releasing organelles and cytoplasm Homogeneity ecology , all of the same or similar kind or nature Homogeneity statistics , logically consistent data matrices Homogeneous large cardinal property Asymptotic homogenization , a method to study partial differential equations with highly oscillatory coefficients Homogenization of a polynomial , a mathematical operation See also Homogeneous catalysis , a sequence of chemical reactions that involve a catalyst in the same phase as the reactants Homogeneity of variance Homogeneous function Homogeneous polynomial Homogeneous differential equation Homogeneous distribution Homogeneous linear transformation Homogeneous coordinates , used in projective spaces Homogeneous space for a Lie group G, or more general transformation group Homogeneous element and homogeneous ideal in a graded ring Heterogeneity disambiguation , links relating to objects or systems consisting of multiple items having a large number of structural variations Monoculturalism , ethnic homogeneity or the advocacy of it Zygosity disambiguation bg cs Homogenita eo Homogeneco fr Homog n it it Omogeneit nl Homogeniteit pt Homogeneidade ru sk Homogenita sl Homogenost ... more details
For homogeneity of variance see homoscedasticity . In statistics , homogeneity and its opposite, heterogeneity , arise in describing the properties of a dataset, or several datasets. They relate to the validity of the often convenient assumption that the statistical properties of any one part of an overall dataset are the same as any other part. In meta analysis , which combines the data from several studies, homogeneity measures the differences or similarities between the several studies see also Study heterogeneity . Homogeneity can be studied to several degrees of complexity. For example, considerations of homoscedasticity examine how much the variability of data values changes throughout a dataset. However, questions of homogeneity apply to all aspects of the statistical distribution s, including ... to studying changes in the skewness . In addition to these, questions of homogeneity apply also to the joint distributions . The concept of homogeneity can be applied in many different ways and, for certain ... as varying within a dataset once some initial types of non homogeneity have been dealt with. Examples ... series may involve plotting values against time to examine homogeneity of the series in various ... and scale are linked in a simple way. There can then be questions of examining the homogeneity ... longer set of records, those records can be considered homgeneous over time. Homogeneity within populations ... the whole of a population. Assessing the homogeneity of the population would involve looking to see .... Tests A test for homogeneity, in the sense of exact equivalence of statistical distributions, can ... the same location parameter . See also Heterogeneous Statistics Heterogeneity Homogeneity and heterogeneity ... reliability and homogeneity from perspective of the ordinal test theory. Applied Measurement in Education, 1, 79&ndash 88 http www.visualstatistics.net Scaling Homogeneity Homogeneity.htm Request reprint ... Scaling Homogeneity 20and 20Reliability Homogeneity 20and 20Reliability.htm Reliability and homogeneity ... more details
Unreferenced date December 2009 Disputed date March 2008 In sociology , role homogeneity is the degree of overlap amongst the different dramaturgy roles performed by different members of a community. Rural sociology rural sociology Rural sociologists often note that amongst rural communities there exists a very high degree of role homogeneity, that is, one person may perform the duties of banking banker , sports coach , religion deacon , education school board member, and neighbor. Controversy Sociologists have demonstrated that in areas of strong homogeneity, there is a general tendency to repress controversy. As a result, when disagreements arise, they can result into serious crises. Such communities tend to have local newspaper s which are more oriented towards marketing , rather than news. What news is published, in a highly homogeneous society, tends to focus on non controversial topics and avoid bad news . See also dramaturgy rural sociology sociology DEFAULTSORT Role Homogeneity Category Sociological terms ... more details
In general, homogeneity is defined as the quality or state of being homogeneous of the same or similar Nature innate nature , from Greek meaning same . It also means having a uniform structure throughout . For instance, a uniform electric field which has the same strength and the same direction at each point would be compatible with homogeneity all points experience the same physics . A material constructed with different constituents can be described as effectively homogeneous in the electromagnetic domain, when interacting with a directed radiation field light, microwave frequencies, etc. ref name homogeneity http www.merriam webster.com dictionary homogeneityHomogeneity . Merriam webster.com ref ref name Homogeneous http www.merriam webster.com dictionary Homogeneous Homogeneous . Merriam webster.com ref In physics, homogeneous usually means describing a material or system that has ..., homogeneity has the connotation of invariance, as all components of the equation have the same ... identical cumulative distribution function or values . ref name homogeneity ref name Homogeneous Context ... described as a homogeneous material. A few other instances of context are Dimensional homogeneity see below is the quality of an equation having quantities of same units on both sides Homogeneity in space implies Conservation law conservation of momentum and homogeneity in time implies Conservation ... Online. Facts On File, Inc. accessed 2009 11 16 ref Homogeneous cosmology Homogeneity, in another ... made. The notion of isotropy , for properties independent of direction, is not a consequence of homogeneity ... at each point would be compatible with homogeneity at each point physics will be the same , but not with isotropy ... formalism, homogeneity in space implies conservation of momentum , and homogeneity in time implies ... . Dimensional homogeneity As said in the introduction, dimensional homogeneity is the quality ... Further reading Landau Lifschitz Theoretical Physics I. Mechanics , Chapter One. DEFAULTSORT Homogeneity ... more details
About states of matter other meanings of heterogeneity, homogeneity, and related words Homogeneity disambiguation and Heterogeneity disambiguation Wiktionary homogeneity heterogeneity homogeneous heterogeneous File The FireHouse Grill Lunch.jpg thumb right 200px Clam chowder , a heterogeneous material Homogeneity and heterogeneity are concepts relating to the uniformity or lack thereof in a substance. A material that is homogeneous is uniform in composition or character one that is heterogeneous lacks uniformity in one of these qualities. ref name websters hetrogeneity ref name Heterogeneous ref name homogeneous 1913and1928 The concepts are applicable to every level of complexity, from atom s to population s of animal s or Human people , to Galaxy galaxies Clarify date September 2010 . Hence, a substance may be homogeneous on a larger scale, compared to being heterogeneous on a smaller scale within the same substance. This is known as an effective medium approximations effective medium approach, or effective medium approximations. ref name Gueguen Cite book last Gu guen, first Yves coauthors and Palciauskas, Victor title Introduction to the physics of rocks publisher Princeton University Press date May 1994 pages 53 72 Chapter 3 url http books.google.com ?id fCP5qyRyX oC&pg PA53&dq heterogeneous physics v onepage&q heterogeneous 20physics&f false format isbn 9780691034522 Google Books preview download available ref ref name Effective medium Cite journal last Shadrivov first Ilya V. title Nonlinear magnetic metamaterials journal Optics Express volume 16 format Introduction section. Free PDF download pages 20266 71 date 2008 11 24 url http assets0.pubget.com pdf 19065165.pdf ... scale and mini scale. ref name Gueguen HomogeneityHomogeneity is the state of being homogeneous ... cover the meaning of homogeneity across disciplines Cite book last Morris first Christopher G ... PA1039&dq Homogeneity in physics v onepage&q Homogeneity 20in 20physics&f false isbn 0122004000 . DEFAULTSORT ... more details
about homogeneity related to ecology homogeneity disambiguation Homogeneous adjective means consisting of parts or people which are similar to each other or are of the same type. Homogeneity noun means all of the same or similar kind or nature. In ecological terms it can also be expressed as a lack of, or reduction in biodiversity . Species richness is the fundamental unit in which to assess the homogeneity of an environment. Therefore, any reduction in species richness, especially endemic species , could be argued as advocating the production of a homogenous environment. Compare heterogeneous Examples Monocultures Homogeneity in agriculture and forestry in particular, industrial agriculture and forestry use a limited number of species. ref Luc Hens and Emmanuel K. Boon http www.multiciencia.unicamp.br artigos 01 A1 HensBoon ing.PDF Causes of Biodiversity Loss a Human Ecological Analysis , MultiCiencia. Human Ecology Department, Belgium. ref About 7,000 plants 2.6 of all plant species have been collected or cultivated for human consumption. Of these, a mere 200 have been domesticated and only a dozen contribute about 75 of the global intake of plant derived calories. 95 of world consumption of protein derives from a few domesticated species, ie poultry, cattle and pigs. There are about 1,000 commercial fish species, but in aquaculture fewer than 10 species dominate global production. Human food production therefore rests on the tips of pyramids of biodiversity, leaving the majority of species not utilised and not domesticated. ref http www.undp.org biodiversity biodiversitycd biodiv brf 06.pdf Food Security and Biodiversity. Biodiversity in Development . Accessed 17 11 09 ref Species migration Species naturally migrate and expand their ranges, utilising new habitats and resources, e.g. the Bubulcus ibis cattle egret . These natural invasions, an incursion in the absence ... for which to assess global homogeneity, it appears that anthropogenic assistance in alien species ... more details
The outgroup homogeneity effect is one s perception of Outgroup sociology out group members as more similar ... 0022 3514 doi 10.1037 0022 3514.38.1.141 ref The outgroup homogeneity effect, or relative outgroup homogeniety has been explicitly contrasted with the outgroup homogeneity in general. ref name Haslam ... first Edward year 1996 title Social identity, self categorization, and the perceived homogeneity ... variability unrelated to perceptions of the ingroup. The out group homogeneity effecthas been ... out group homogeneity The roles of differential familiarity, gender differences, and group size ... Ingroup Homogeneity on Ingroup Traits and Outgroup Homogeneity on Outgroup Traits? journal Personality ... 1991 pages 366 379 issn 1939 1315 doi 10.1037 0022 3514.61.3.366 ref The outgroup homogeneity effect is sometimes referred to as outgroup homogeneity bias . Such nomenclature hints at a broader Self ... homogeneity, where some researchers view the homogeneity effect as an example of cognitive ... Bernadette last2 Rothbart first2 Myron year 1982 title Perception of out group homogeneity and level ... ref but this is actually not the case. The out group homogeneity bias was found between groups such as men ..., A., & Richards, Z. 2004 . Gender out group homogeneity The roles of differential familiarity, gender ... 2011 ref Experiments on the topic found that in group homogeneity is displayed when people who highly ... Cremer 138 146 cite journal last De Cremer first David title Perceptions of group homogeneity as a function ... ref A self categorization theory account Self categorization theory attributes the outgroup homogeneity ... between outgroup members and this leads to perceptions of outgroup homogeneity. When perceiving ingroup ... between me and others in the group leading to perceptions of comparative ingroup Homogeneity ... outgroup comparison, this leads to an overall outgroup homogeneity effect. The self categorization ... Social categorization and group homogeneity changes in the perceived applicability of stereotype content ... more details
The Black Intelligence Test of Cultural Homogeneity , or BITCH 100 , is an intelligence test created by Robert Williams psychologist Robert Williams in 1972 oriented toward the language, attitudes, and life styles of African American s. White American White students perform more poorly on this test than blacks, suggesting that there are important dissimilarities in the cultural backgrounds of blacks and whites. ref name bitchSource cite conference first Robert L last Williams year 1972 title The BITCH 100 A Culture Specific Test url http eric.ed.gov 80 ERICWebPortal contentdelivery servlet ERICServlet?accno ED070799 conference American Psychological Association Annual Convention location Honolulu, Hawaii month September ref ref Racial Differences on a Black Intelligence Test Journal of Negro Education, 43, 4, 429 436, F 74 ref Some argue that these findings indicate that test bias plays a role in producing the gaps in IQ test scores. ref IQ Tests and the Black Culture McNiel, Nathaniel D. ref Both of these tests demonstrate how cultural content on intelligence tests may lead to culturally biased score results. Still these criticisms of cultural content may not apply to culture free tests of intelligence. The BITCH 100 and the Chitling test both have explicit cultural assumptions, while normal standardized test s are only theorized to have implicit bias. The fact that a test can have bias does not necessarily prove that a specific test does have bias. However, even on cultural free tests, test bias may play a role since, due to their cultural backgrounds, some test takers do not have the familiarity with the language and culture of the psychological and educational tests that is implicitly assumed in the assessment procedure. ref Assessment in Multicultural Groups The Role of Acculturation van de Vijver, Fons J.R. Phalet, Karen from the Special Issue on Advances in Testing Methodology from an International Perspective Applied Psychology. 53 2 215 236, April 2004. ref ... more details
Mixing time may refer to Blend time , the time to achieve a predefined level of homogeneity of a flow tracer in a mixing vessel Mixing mathematics , an abstract concept originating from physics used to attempt to describe the irreversible thermodynamic process of mixing Markov chain mixing time , the time to achieve a level of homogeneity in the probability distribution of a state in a Markov process. Disambig ... more details
Circularity can mean Begging the question , i.e., circular logic Circular definition Roundness object Circularity Roundness specification of an object. A circularity ratio as a compactness measure of a shape An assumption of Analysis of variance ANOVA s with repeated measures. It denotes the homogeneity of the variances of difference values between the conditions. It is often also called sphericity . disambig ... more details
The Taub NUT vacuum is an exact solutions in general relativity exact solution to Einstein s equations , a model universe formulated in the framework of general relativity that is Homogeneity physics homogeneous but anisotropic . It is based on a solution published by Abraham Haskel Taub in 1951. ref A. H. Taub, Empty space times admitting a three parameter group of motions, Annals of Mathematics , second series, 53 , 3 May 1951 , 472 490, JSTOR 1969567 . ref References reflist Category Exact solutions in general relativity T relativity stub it Vuoto di Taub NUT ... more details
saved book title Psychology of prejudice subtitle Theories and applications cover image cover color Psychology of prejudice Theories and applications Basic concepts Prejudice Stereotype Scapegoating Theories and processes Social stigma In group out group bias Out group homogeneity bias Social identity Halo effect Actor observer bias Fundamental attribution error Ultimate attribution error Self Stereotyping Allport s Scale Implicit attitude Implicit Association Test Applications Physical attractiveness stereotype Stereotype threat ... more details
refimprove date June 2010 A shim is a device used to adjust the homogeneity of a magnetic field . Originally, shims have their name from the purely Shim spacer mechanical shims that are used to adjust position and parallelity of the pole faces of an electromagnet. Coils that are used to adjust the homogeneity of a magnetic field by changing the current flowing through it were called electrical current shims ref Weston A. Anderson, Electrical Current Shims for Correcting Magnetic Fields Rev. Sci. Instrum. 32, 241 1961 ref because of their similar function. Usage in magnetic resonance spectrometry File Nmr fid bad shim.svg thumb Free Induction Decay FID nuclear magnetic resonance signal seen from a badly shimmed sample. File Nmr fid good shim.svg thumb Free Induction Decay FID nuclear magnetic resonance signal seen from a well shimmed sample. In nuclear magnetic resonance NMR and magnetic resonance imaging MRI , shimming is used prior to the operation of the magnet to eliminate inhomogeneities in its field. Initially the magnetic field inside an NMR spectrometer or MRI scanner will be far from homogeneous. It could be up to 100 times worse with respect to its homogeneity than an ideal field of the device. This is a result of the production tolerances and magnetic field of the environment iron constructions in walls and floor of the examination room get magnetized and disturb the field of the scanner. The probe and the sample or the patient get slightly magnetized when brought into the strong magnetic field and create additional inhomogeneous fields. The process of correcting for these inhomogeneities is called shimming the magnet, shimming the probe or shimming the sample depending on what is supposed to be responsible for the remaining inhomogeneity. A field homogeneity to the order of 1ppm over a volume of several liters is needed in a MRI scanner. High resolution NMR spectroscopy even demands a field homogeneity better than 1ppb in a volume of a few milliliters ref ... more details
On Wikipedia heterogeneity or heterogeneous may refer to the following Heterogeneity in the sciences is a substance composed of dissimilar or diverse parts. A Homogeneous and heterogeneous reactions heterogeneous reaction , a reaction in chemical kinetics that takes place at the interface of two or more phases, i.e. between a solid and a gas, a liquid and a gas, or a solid and a liquid A heterogeneous catalysis , one in which the catalyst is in a different phase from the substrate Study heterogeneity , a concept in statistics A heterogeneous taxon , a taxon that contains a great variety of individuals or sub taxa usually this implies that the taxon is an artificial grouping Genetic heterogeneity , multiple origins causing the same disorder in different individuals. Allelic heterogeneity , different mutations at the same locus causing the same disorder. Heterogeneity in landscape ecology , the measure of how different parts of a landscape are from one another. Heterogeneous computing , electronic systems that utilize a variety of different types of computational units With information technology it means a network comprising different types of computers, potentially with vastly differing memory sizes, processing power and even basic underlying architecture. A data resource with multiple types of formats. Heterogeneous agents in economic models Heterogeneity in economics See also Homogeneity and heterogeneity Homogeneity disambiguation Degeneracy biology Degeneracy disamb ... more details
wiktionary uniformity Uniformity may refer to Distribution uniformity , a measure of how uniformly water is applied to the area being watered Religious uniformity , the promotion of one state religion, denomination, or philosophy to the exclusion of all other religious beliefs Retention uniformity , a concept in thin layer chromatography Tire uniformity , a concept in vehicle technology Uniformity chemistry , a measure of the homogeneity of a substance s composition or character Uniformity complexity , a concept in computational complexity theory Uniformity philosophy , the concept that the same natural laws and processes that operate in the universe now have always operated in the universe Uniformity topology , a concept in the mathematical field of topology Uniformity of motive , a concept in astrobiology disambig ... more details
Unreferenced date December 2009 In physics , a non Gaussianity is the correction that modifies the expected Gaussian function estimate for the measurement of a physical quantity . In physical cosmology , the fluctuations of the cosmic microwave background are known to be approximately Gaussian, both theoretically as well as experimentally. However, most theories predict some level of non Gaussianity in the primordial density field. Detection of these non Gaussian signatures will allow discrimination between various models of inflation and their alternatives. External links commons category http arxiv.org abs 1002.3173 Testing gaussianity, homogeneity and isotropy with the cosmic microwave background Category Measurement Category Physical cosmology Physics stub ... more details
Unreferenced date December 2009 Abstract space , in geography , refers to a hypothetical space characterized by equal and consistent properties a geographic space that is completely homogeneity physics homogeneous . All movement and activity would be equally easy or difficult in all directions and all locations within this space. This concept is useful for modeling or analyzing spatial activity and behavior by limiting or eliminating extraneous variables , such as terrain. For example if researchers want to study the relationship between culture and trade, they don t want their model to be overwhelmed or influenced by factors such as mountainous barriers, rivers, etc, because these would detract from the purpose of modeling how culture alone effects trade. For another example see Central Place Theory building the theory . geog stub DEFAULTSORT Abstract Space Category Geography terminology ... more details
Cosmic time also known as time since the big bang is the time coordinate commonly used in the Big Bang models of physical cosmology . It is defined for Homogeneity physics homogeneous , cosmic expansion expanding universes as follows Choose a time coordinate so that the universe has the same density everywhere at each moment in time the fact that this is possible means that the universe is, by definition, homogeneous . Measure the passage of time using clock s moving with the Hubble flow . Choose the big bang singularity as the origin of the time coordinate. Cosmic time is the standard time coordinate for specifying the Friedmann&ndash Lema tre&ndash Robertson&ndash Walker metric Friedmann&ndash Lema tre&ndash Robertson&ndash Walker solutions of Einstein s equations . Category Coordinate systems Category Time astronomy stub ko ... more details
wiktionary Shim may refer to Shim computing , an application compatibility workaround Shim spacer , a thin and often tapered or wedged piece of material Shim fencing Shim magnetism , a device used to adjust the homogeneity of a magnetic field CPU shim , in computing, a component that may be placed between the CPU and its heatsink Cumorah Shim , a hill in the Book of Mormon Sim Korean name , pronounced shim Second harmonic imaging microscopy SHIM a derogatory slur for transsexual people See also lookfrom intitle Shimmer disambiguation Sim disambiguation disambig de Shim ja ... more details
unreferenced date September 2009 Religious cleansing is a euphemism for a form of religious persecution in which members of a religious population are subjected to imprisonment, Population transfer expulsion , or death by a majority to achieve religious homogeneity in majority controlled territory. While akin to ethnic cleansing a better known form of discrimination throughout human history religious cleansing is less defined by a group s ancestry and more defined by that religious group s spiritual allegiance of interest. Such cleansing is often precipitated by the declaration of a religion or creed as illegal and outlawed, as in the case of the Spanish Inquisition and the Edict of Fontainebleau . Category Religious persecution Category Euphemisms fa ... more details
unreferenced date February 2012 Tailing defect in Laser Printing Tailing is a defect of printing consisting in a rapid change of density when printing solid graphics whereby the initial value attains maximum Optical Density toner can provide but suddenly a perfect line of change is visualized in the printed graphic and a substantial reduction of said density follows. The changes are in most cases caused by small toner particles in the surface of the OPC not fully charged and unable to transfer to the paper. Such partially untransfered particles of toner end up being collected by the cartridge cleaning system and sent to the waste bin. Such errors are associated to the quality of the developing system including OPC and or Magnetic Developer Roller. In addition, the lack of homogeneity and charge acceptance due by variation in toner particles size can contribute to augment problems of Tailing. Uncategorized date February 2012 ... more details
Progressive contextualization PC is a scientific method pioneered and developed by professor Andrew P. Vayda and research team between 1979 and 1984. ref http www.springerlink.com content p666h42218624877 ref The method was developed to help understand cause of damage and destruction of forest and land during the New Order Regime in Indonesia , as well as practical ethnography . Vayda proposed the Progressive contextualization method due to his dissatisfaction with several conventional anthropological methods to describe accurately and quickly cases of illegal logging, land destruction and the network of actor investor protecting the actions, as well as various consequences detrimental to the Natural environment environment and social life. The essence of this method is to track and assess what the actor does actor based or network of certain actors actor based network in certain location and time series of consequences that are intended and unintended from what the actors or their networks do, in a time and space that can be different from the original time and space, as long as it is in accordance with the interest of the research and the available time. Therefore, the PC method does not have to be bound to a certain research place and time pre determined in the research design. It rejects the assumption of ecological and socio cultural wikt homogeneity homogeneity . Instead, it focuses on Multiculturalism diversity and it looks at how different individuals and groups operate in and adapt to their total environments through a variety of behaviors, technologies, organizations, structures and beliefs. Due attention to context in the http en.wiktionary.org wiki elucidate elucidation of actions and consequences may often mean having to deal with precisely the kind of factors and processes often scanted or denied by holistic approaches the loose, transient, and contingent interactions, the disarticulating processes, and the movements of people, resources, and ideas acr ... more details
Jane Loevinger Weissman February 6, 1918 January 4, 2008 was a Developmental psychology developmental psychologist who developed a Personality psychology theory of personality which emphasized the gradual internalization of social rules and the maturing conscience for the origin of personal decisions. She also contributed to the theory of measurements by introducing the coefficient of test wiktionary Homogeneity homogeneity . In 1943, she married Samuel Isaac Weissman June 25, 1912 June 12, 2007 , a scientist who contributed to the Manhattan Project . They had a son and a daughter. See also Psychological testing Loevinger s stages of ego development References Loevinger, J. 1948 . The technic of homogeneous tests compared with some aspects of scale analysis and factor analysis . Psychological Bulletin, 45 , 507 529. Loevinger, J. 1970 . Measuring Ego Development . San Fransciso Jossey Bass. Loevinger, J. 1976 . Ego Development . San Francisco Jossey Bass. Loevinger, J. 1987 . Paradigms of Personality . New York Freeman. Hy, L. X. & Loevinger, J. 1996 . Measuring Ego Development , 2nd Ed. Mahwah, NJ Erlbaum. External links http www.socialsciences.leidenuniv.nl psychology organisation dev special personality forum theory.jsp Loevinger s Developmental Model of Personality http www.webster.edu woolflm loevinger.html Women s Intellectual Contributions to the Study of Mind Persondata Metadata see Wikipedia Persondata . NAME Loevinger, Jane ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH February 6, 1918 PLACE OF BIRTH DATE OF DEATH January 4, 2008 PLACE OF DEATH DEFAULTSORT Loevinger, Jane Category Psychologists Category 1918 births Category 2008 deaths Category American psychologists psychologist stub es Jane Loevinger no Jane Loevinger ... more details
File Agitated vessel.svg thumb 250px Scheme of an jacketed agitated vessel double image right Autoclave.svg 120 Half pipe reactor.svg 125 Symbols used in P&ID to represent a jacketed agitated vessel left and a half pipe jacketed agitated vessel right . In chemical engineering , a jacketed vessel is a container that is designed for controlling the temperature of its contents, by using a cooling or heating jacket around the vessel through which a cooling or heating fluid is circulated. A jacket is a cavity external to the vessel that permits the uniform exchange of heat between the fluid circulating in it and the walls of the vessel. There are several types of jackets, depending on the design ref name Singh http www.cheresources.com jacketed vessel design.shtml Santosh Singh, Jacketed Vessel Design ref conventional jackets half pipe coil jackets dimple jackets or plate coils Jacketed vessels can be employed as chemical reactors to remove the elevated heat of reaction or to reduce the viscosity of high viscous fluids such as tar . Agitation action Agitation can be also used in jacketed vessels to improve the wikt homogeneity homogeneity of the fluid properties such as temperature or concentration . References references Bibliography Estimate Heat Transfer and Friction in Dimple Jackets, John Garvin , CEP Magazine, April 2001 Heat Transfer in Agitated Jacketed Vessels, Robert Dream , Chemical Engineering, January 1999 See also Heat exchanger Mixing process engineering External links http www.chempap.org papers 566a382.pdf Efficiency of the Heat Transfer Process in a Jacketed Agitated Vessel Equipped with an Eccentrically Located Impeller Category Heat exchangers ... more details
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