Look up anisotropy in Wiktionary, the free dictionary.

Anisotropy (the opposite of isotropy) is the property of being directionally dependent. Wikipedia does not have an article with this exact name. ... Wiktionary logo Wiktionary is a sister project to Wikipedia intended to be a free wiki dictionary (including thesaurus and lexicon) in every language. ... Isotropy (the opposite of anisotropy) is the property of being independent of direction. ...

In the field of computer graphics, anisotropic surface will change in appearance as it is rotated about its geometric normal, as is the case with velvet. Anisotropic scaling occurs when something is scaled by different amounts in different directions. An example is down-scaling a 64×64-pixel texture to cover a 12×34-pixel rectangle; this is anisotropic filtering. Computer graphics (CG) is the field of visual computing, where one utilizes computers both to generate visual images synthetically and to integrate or alter visual and spatial information sampled from the real world. ... A surface normal, or just normal to a flat surface is a three-dimensional vector which is perpendicular to that surface. ... Velvet is a type of tufted fabric in which the cut threads are very evenly distributed, with a short dense pile, giving it its distinct feel. ... ... In geometry, a rectangle is defined as a quadrilateral polygon in which all four angles are right angles. ... In 3D computer graphics, anisotropic filtering is a method of enhancing the image quality of textures on surfaces that are far away and steeply angled with respect to the camera. ...

An anisotropic filter, on the other hand, is a filter with increasingly smaller interstitial spaces in the direction of filtration so that the proximal regions filter out larger particles and distal regions increasingly remove smaller particles, resulting in greater flow-through and more efficient filtration. The term filter may refer to: A device to separate mixtures. ... Interstitial is a generic term for referring to the space between other structures or objects. ... In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ... Region can be used to mean either: any more or less well-defined geographical area of a country or continent, defined by geography, culture or history in political geography, an administrative subdivision of a country or of the European Union. ... In zootomy, several terms are used to describe the location of organs and other structures in the body of bilateral animals. ...

Cosmologists use the term to describe the fluctuations in the background radiation left over after the big bang. The term refers to the difference in the temperature of the cosmic microwave background radiation with direction. Cosmology is the study of the large-scale structure and history of the universe. ... Background radiation is the ionizing radiation from several natural radiation sources: sources in the Earth and from those sources that are incorporated in our food and water, which are incorporated in our body, and in building materials and other products that incorporate those radioactive sources; radiation sources from space (in... According to the Big Bang theory, the Universe originated in an extremely dense and hot state (bottom). ... In cosmology, the cosmic microwave background radiation (most often abbreviated CMB but occasionally CMBR, CBR or MBR) is a form of electromagnetic radiation discovered in 1965. ...

An anisotropic liquid is one which has the fluidity of a normal liquid, but, unlike water or chloroform, which contain no structural ordering of the molecules, they have an average structural order relative to each other along their molecular axis. Liquid crystals are examples of anisotropic liquids. PEL-TWA (OSHA) 50 ppm (240 mg/m3) IDLH (NIOSH) 500 ppm Flash point non-flammable RTECS number FS9100000 Supplementary data page Structure & properties n, εr, etc. ... Liquid crystals are a class of molecules that, under some conditions, inhabit a phase in which they exhibit isotropic, fluid-like behavior – that is, with little long-range ordering – but which under other conditions inhabit one or more phases with significant anisotropic structure and long-range ordering while still having...

Some materials conduct heat in a way that is isotropic, that is independent of spatial orientation around the heat source. It is more common for heat conduction to be anisotropic, which implies that detailed geometric modeling of typically diverse materials being thermally managed is required. The materials used to transfer and reject heat from the heat source in electronics are often anisotropic. Heat flow along perfectly insulated wire Heat conduction is the transmission of heat across matter. ... This is a hub page for electronics. ...

Geological formations where distinct layers of sedimentary material are disposited can exhibit electrical anisotropy. That is electrical conductivity in one direction e.g. parallel to a layer, is different to that in another e.g. perpendicular to a layer. This property is used in the gas and oil exploration industry to identify hydrocarbon-bearing sands in sequences of sand and shale. Sand bearing hydrocarbon assets have high resistivity (relatively low conductivity) whereas shales are much more conductive. Formation evaluation instruments measure this conductivity and resistivity and the results are used to help best site oil and gas wells. Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason)) is the science and study of the Earth, its composition, structure, physical properties, history, and the processes that shape it. ... Electrical conductivity is a measure of how well a material accommodates the transport of electric charge. ... Oil Exploration is the search by petroleum geologists for hydrocarbon deposits beneath the Earths surface. ... Patterns in the sand Sand is an example of a class of materials called granular matter. ... Shale Shale is a fine-grained sedimentary rock whose original constituents were clays or muds. ... Hydrocarbons are refined at oil refineries and chemical plants In chemistry, a hydrocarbon is any chemical compound that consists only of the elements carbon (C) and hydrogen (H). ... Bold text == In petroleum exploration and development, formation evaluation is used to determine whether a potential oil or gas field is commercially viable. ... Electrical resistivity (also known as specific electrical resistance) is a measure indicating how strongly a material opposes the flow of electric current. ...

Many crystals are anisotropic to light, and exhibit properties such as birefringence. Crystal optics describes light propagation in these media. Quartz crystal A crystal is a solid in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating pattern extending in all three spatial dimensions. ... Prism splitting light Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelength. ... A calcite crystal laid upon a paper with some letters showing the double refraction Birefringence, or double refraction, is the decomposition of a ray of light into two rays (the ordinary ray and the extraordinary ray) when it passes through certain types of material, such as calcite crystals, depending on... Crystal optics is the branch of optics that describes the behaviour of light in anisotropic media, that is, media (such as crystals) in which light behaves differently depending on which direction the light is propagating. ...

External links

Baker Atlas - Formation Evaluation