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Aqion N where "K" is the equilibrium constant of formation of the secondary species "i", and ν represents the stoichiometric coefficient of basis species "j" in secondary species "i" (the values of ν can be positive or negative). Here, activities "a" are symbolized by curly brackets {i} while concentrations "c" by rect... | https://en.wikipedia.org/wiki?curid=37699547 |
Charles George Johnson (188614 October 1950) was a chemist, businessman and political figure in Adelaide, South Australia. Johnson was born in Essex, England in 1886 and led an adventurous life, including a spell of boxing professionally, before arriving in Adelaide in 1925. He first came to public notice as a Labor Pa... | https://en.wikipedia.org/wiki?curid=37700226 |
Immersion chiller Immersion chillers work by circulating a cooling fluid (usually tap water from a garden hose or faucet) through a copper/stainless steel coil that is placed directly in the hot wort. As the cooling fluid runs through the coil it absorbs and carries away heat until the wort has cooled to the desired te... | https://en.wikipedia.org/wiki?curid=37702668 |
C16H22ClN3O2 The molecular formula CHClNO may refer to: | https://en.wikipedia.org/wiki?curid=37703017 |
Glycogenin-1 is an enzyme that is involved in the biosynthesis of glycogen. It is capable of self-glucosylation, forming an oligosaccharide primer that serves as a substrate for glycogen synthase. This is done through an inter-subunit mechanism. It also plays a role in glycogen metabolism regulation. Recombinant human ... | https://en.wikipedia.org/wiki?curid=37705238 |
Glycogenin-1 These mechanisms are based mainly on the differences on structure and on the regulation of the enzymes that catalyze synthesis, glycogen synthase (GS), and degradation, glycogen phosphorylase (GF). Glycogenin is the initiator of the glycogen biosynthesis. This protein is a glycosyl transferase that have th... | https://en.wikipedia.org/wiki?curid=37705238 |
Glycogenin-1 There are also nine E-boxes that bind the basic helix-loop-helix of muscle-specific transcription factors. The GYG1 gene is located on the long arm of the chromosome 3, between positions 24 and 25, from base pair 148,709,194 to base pair 148,745,455. Transcription of human glycogenin-1 is mainly initiated ... | https://en.wikipedia.org/wiki?curid=37705238 |
Glycogenin-1 The mutations in the glycogenin-1 gene GYG1 are also a cause of cardiomyopathy and arrhythmia. | https://en.wikipedia.org/wiki?curid=37705238 |
Spiropyran A spiropyran is a type of organic chemical compound, known for photochromic properties that provide this molecule with the ability of being used in medical and technological areas. Spiropyrans were discovered in the early twentieth century. However, it was in the middle twenties when Fisher and Hirshbergin o... | https://en.wikipedia.org/wiki?curid=37706672 |
Spiropyran A spiropyran is a 2H-pyran isomer that has the hydrogen atom at position two replaced by a second ring system linked to the carbon atom at position two of the pyran molecule in a spiro way. So there is a carbon atom which is common on both rings, the pyran ring and the replaced ring. The second ring, the rep... | https://en.wikipedia.org/wiki?curid=37706672 |
Spiropyran It is possible in solution and in the dry state that radiation between 250 nm and 380 nm (approximately) is able to, by breaking the C-O binding, transform the spiropyrans into its colour emitting merocyanin-form. The structure of the colourless molecules, the substrate of the reaction (N), is more thermodyn... | https://en.wikipedia.org/wiki?curid=37706672 |
Spiropyran Thanks to the creation of novel media sensitive to IR radiation and the potential of spiropyrans for optical recording data, semiconductor lasers as activating source of radiation are possible. Spiropyrans with ion complexes and spiropyran copolymers which are part of powdered and film materials have been us... | https://en.wikipedia.org/wiki?curid=37706672 |
Spiropyran Spiropyrans can be used to probe the conformational state of DNA, as certain derivatives can intercalate into DNA when in the open form. Spiropyrans are used in photo controlled transfer of amino acids across bilayers and membranes because of nucleophilic interaction between zwitterionic merocyanine and pola... | https://en.wikipedia.org/wiki?curid=37706672 |
Einsteinium(III) iodide Einsteinium triiodide is an iodide of the synthetic actinide einsteinium which has the molecular formula EsI. This crystalline salt is an amber-coloured solid. It glows red in the dark due to einsteinium's intense radioactivity. It crystallises in the hexagonal crystal system in the space group ... | https://en.wikipedia.org/wiki?curid=37712157 |
Einsteinium(III) oxide is an oxide of the synthetic actinide einsteinium which has the molecular formula EsO. It is a colourless solid. Three modifications are known. The body-centered cubic form has lattice parameter "a" = 1076.6 ± 0.6 pm; this allows the ionic radius of the Es ion to be calculated as 92.8 pm. The oth... | https://en.wikipedia.org/wiki?curid=37712468 |
SIE Neftehim () is a Russian joint stock company based in Krasnodar, undertaking research and development in the petrochemical industry. Its origins lie in the research laboratory attached to Krasnodar Refinery, which first developed the use of aluminium-platinum catalysts in the Soviet Union. Established in its presen... | https://en.wikipedia.org/wiki?curid=37713528 |
SIE Neftehim The company searches for and develops technologies and catalysts for Russian and foreign refineries. The enterprise is operated in accordance with the ISO 9001:2008 quality management system in the sphere of development and introduction of petrochemical processes. JSC is directed by its major shareholders ... | https://en.wikipedia.org/wiki?curid=37713528 |
Potin (also known as billon) is a base metal silver-like alloy used in coins. It is typically a mixture of copper, tin and lead (in varying proportions) and it is debated whether any actual silver needs to be present. While the term "billon" is more commonly applied to ancient Roman coinage, "potin" is usually used for... | https://en.wikipedia.org/wiki?curid=37720517 |
Stripping reaction (chemistry) In chemistry, a stripping reaction is a chemical process, studied in a molecular beam, in which the reaction products are scattered forward with respect to the moving centre of mass of the system. | https://en.wikipedia.org/wiki?curid=37722838 |
Double layer forces An electrical double layer develops near charged surfaces (or another charged objects) in aqueous solutions. Within this double layer, the first layer corresponds to the charged surface. These charges may originate from tightly adsorbed ions, dissociated surface groups, or substituted ions within th... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces The corresponding Poisson's equation reads in SI units where "ρ" is the charge density per unit volume, "ε" the dielectric permittivity of the vacuum, and "ε" the dielectric constant of the liquid. For a symmetric electrolyte consisting of cations and anions having a charge ±"q", the charge density ... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces The starting point is the Gibbs–Duhem relation for a two component system at constant temperature Introducing the concentrations "c" and using the expressions of the chemical potentials "μ" given above one finds The concentration difference can be eliminated with the Poisson equation and the resulti... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces In practice, the DH approximation remains rather accurate up to surface potentials that are comparable to the limiting values given above. The disjoining pressure can be obtained from the PB equation given above, which can also be simplified to the DH case by expanding into Taylor series. The result... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces This approximation turns out to be exact provided the plate-plate separation is large compared to the Debye length and the surface potentials are low. This result can be simply generalized to highly charged surfaces, but only at larger separations. Even if the potential is large close to the surface... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces The boundary conditions play an important role, and the surface potential and surface charge density formula_19 and formula_20 become functions of the surface separation "h" and they may differ from the corresponding quantities "ψ" and "σ" for the isolated surface. When the surface charge remains co... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces By solving the DH equation one can show that diffuse layer potential varies upon approach as while the surface charged density obey a similar relation The swelling pressure can be found by inserting the exact solution of the DH equation into the expressions above and one finds Repulsion is strongest... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces Interactions between various objects were studied within the DH and PB models by many researchers. Some of the relevant results are summarized in the following. Non-planar geometries: Objects of other than planar geometries can be treated within the Derjaguin approximation, provided their size is su... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces Such surfaces are referred to have a mosaic or patch-charge distribution. One important conclusion from these studies is that there is an additional attractive electrostatic contribution, which also decays exponentially. When the non-uniformities are arranged in a quadratic lattice with spacing "b",... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces This model was studied in much detail in the theoretical community. Explicit expressions for the forces are mostly not available, but they are accessible with computer simulations, integral equations, or density functional theories. The important finding from these studies is that the PB description... | https://en.wikipedia.org/wiki?curid=37732235 |
Double layer forces The experimental findings were mostly based on video-microscopy, but the underlying data analysis was questioned concerning the role of impurities, appropriateness of image processing techniques, and the role of hydrodynamic interactions. The majority of the scientific community remains skeptical co... | https://en.wikipedia.org/wiki?curid=37732235 |
Surprisal analysis is an information-theoretical analysis technique that integrates and applies principles of thermodynamics and maximal entropy. is capable of relating the underlying microscopic properties to the macroscopic bulk properties of a system. It has already been applied to a spectrum of disciplines includin... | https://en.wikipedia.org/wiki?curid=37737648 |
Surprisal analysis This enables surprisal analysis to be an effective method of information quantification and compaction and of providing an unbiased characterization of systems. is particularly useful to characterize and understand dynamics in small systems, where energy fluxes otherwise negligible in large systems, ... | https://en.wikipedia.org/wiki?curid=37737648 |
Surprisal analysis These deviations are ranked on the degree of deviation from the balance state and ordered on the most to least influential to the system. This ranking is provided through the use of Lagrange multipliers. The most important constraint and usually the constraint sufficient to characterize a system exhi... | https://en.wikipedia.org/wiki?curid=37737648 |
Surprisal analysis was initially applied to characterize a small three molecule system that did not seemingly conform to principles of thermodynamics and a single dominant constraint was identified that was sufficient to describe the dynamic behavior of the three molecule system. Similar results were then observed in n... | https://en.wikipedia.org/wiki?curid=37737648 |
Sonali Mukherjee is a woman from Dhanbad, India, whose face was permanently disfigured by an acid attack in 2003 when she was 18. Her family has spent all their savings on her treatment. Mukherjee was born in Dhanbad. She was a National Cadet Corps cadet, which she had to quit after her attack. In 2003, almost one and ... | https://en.wikipedia.org/wiki?curid=37740436 |
Sonali Mukherjee of Jharkhand appointed as Grade III clerk in the welfare department of the Bokaro deputy commissioner's office. Mukherjee drew global attention when she appealed for euthanasia. Her wish to meet Amitabh Bachchan on the sets of "Kaun Banega Crorepati", season 6 was granted in 2012. Accompanied by Lara D... | https://en.wikipedia.org/wiki?curid=37740436 |
Lead smelting Plants for the production of lead are generally referred to as lead smelters. Primary lead production begins with sintering. Concentrated lead ore is fed into a sintering machine with iron, silica, limestone fluxes, coke, soda ash, pyrite, zinc, caustics or pollution control particulates. Smelting uses su... | https://en.wikipedia.org/wiki?curid=37745974 |
Lead smelting In this step elemental sulphur, usually in solid form is added to the molten crude lead bullion to react with the contained copper. A "matte" layer forms in this step, containing most of the copper originating from the crude lead bullion and some other impurities as metal sulfides. The speiss and the matt... | https://en.wikipedia.org/wiki?curid=37745974 |
Lead smelting (PbO and SO) The sulfur dioxide (like the carbon dioxide in the example above) is expelled, and the lead oxide is reduced. Anglesite, Cerussite, Pyromorphite, Mimetite and Wulfenite are other lead ores. Other elements frequently present with lead ores include zinc and silver. Most of the lead produced com... | https://en.wikipedia.org/wiki?curid=37745974 |
Lead smelting Although lead poisoning is one of the oldest known work and environmental hazards, the modern understanding of the small amount of lead necessary to cause harm did not come about until the latter half of the 20th century. No safe threshold for lead exposure has been discovered—that is, there is no known a... | https://en.wikipedia.org/wiki?curid=37745974 |
Lead smelting However, being easy to cast and shape, it came to be extensively used in the classical world of Ancient Greece and Ancient Rome for piping and storage of water. It was also used as a mortar in stone buildings, and as a writing material. Smeltmills were water-powered mills used to smelt lead or other metal... | https://en.wikipedia.org/wiki?curid=37745974 |
Vinylpyridine may refer to: | https://en.wikipedia.org/wiki?curid=37748488 |
C28H48O2 The molecular formula CHO may refer to: | https://en.wikipedia.org/wiki?curid=37749002 |
Copper in heat exchangers Heat exchangers are devices that transfer heat to achieve desired heating or cooling. An important design aspect of heat exchanger technology is the selection of appropriate materials to conduct and transfer heat fast and efficiently. Copper has many desirable properties for thermally efficien... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers New copper heat exchanger technologies for specific applications are also introduced. Heat exchangers using copper and its alloys have evolved along with heat transfer technologies over the past several hundred years. Copper condenser tubes were first used in 1769 for steam engines. Initially,... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Heat transfer across materials of high thermal conductivity occurs at a higher rate than across materials of low thermal conductivity. In the International System of Units (SI), thermal conductivity is measured in watts per meter Kelvin (W/(m•K)). In the Imperial System of Measurement (British... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers , stress corrosion cracking, ammonia attack) along with titanium’s excellent corrosion resistance. A duplex tube with inner aluminium brass or copper-nickel and outer stainless or mild steel can be used for cooling in the oil refining and petrochemical industries. Copper and copper-nickel allo... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Hence, the surfaces of copper-based heat exchangers are cleaner for longer periods of time than heat exchangers made from other metals. This benefit offers a greatly expanded heat exchanger service life and contributes to improved air quality. Heat exchangers fabricated separately from antimic... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Internally grooved copper tube of smaller diameters is more thermally efficient, materially efficient, and easier to bend and flare and otherwise work with. It is generally easier to make inner grooved tubes out of copper, a very soft metal. Copper alloys are extensively used as heat exchanger... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Aluminium-brass, 90% Cu-10% Ni and 70% Cu-30% Ni alloys show good corrosion resistance in hot de-aerated seawater and in brines in multi-stage flash desalination plants. Fixed tube liquid-cooled heat exchangers especially suitable for marine and harsh applications can be assembled with brass s... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Further information about copper alloy heat exchangers for industrial facilities is available. Solar water heaters can be a cost-effective way to generate hot water for homes in many regions of the world. Copper heat exchangers are important in solar thermal heating and cooling systems because... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers As the solution circulates through the copper header, the temperature rises. Other components in solar thermal water systems that contain copper include solar heat exchanger tanks and solar pumping stations, along with pumps and controllers. Air conditioning and heating in buildings and motor ... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Gas-water heat exchangers that transfer heat from gaseous fuels to water between 3 and 300 kilowatts thermal (kWth) have widespread residential and commercial use in water heating and heating boiler appliance applications. Demand is increasing for energy-efficient compact water heating systems... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers These units, which are considerably more efficient than their air-source counterparts, rely on the constancy of ground temperatures below the frost zone for heat transfer. The most efficient ground source heat pumps use ACR, Type L or special-size copper tubing buried into the ground to transf... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers Heat pipes are used to move heat away from central processing units (CPUs) and graphics processing units (GPUs) and towards heat sinks, where thermal energy is dissipated into the environment. Copper and aluminium heat pipes are used extensively in modern computer systems where increased power... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers CuproBraze is particularly suited for charge air coolers and radiators in capital intensive industries where machinery must operate for long periods of time under harsh conditions without premature failures. For these reasons, CuproBraze is particularly suited for the off-road vehicle, truck, ... | https://en.wikipedia.org/wiki?curid=37749393 |
Copper in heat exchangers MicroGroove uses a grooved inner surface of the tube to increase the surface to volume ratio and increase turbulence to mix the refrigerant and homogenize temperatures across the tube. | https://en.wikipedia.org/wiki?curid=37749393 |
War sand is sand contaminated by remains of projectiles used in war. This kind of sand has been found in Normandy, since the invasion of Normandy, among other places. In 1988, the sand on Omaha Beach was discovered to contain man-made metal and glass particles deriving from shrapnel; 4% of the sand in the sample was co... | https://en.wikipedia.org/wiki?curid=37750865 |
Internally grooved copper tube Internally grooved copper tubes also known as "microfin tubes" are a small diameter coil technology for modern air conditioning and refrigeration systems. Grooved coils facilitate more efficient heat transfer than smooth coils. Small diameter coils have better rates of heat transfer than ... | https://en.wikipedia.org/wiki?curid=37753951 |
Internally grooved copper tube To use smaller tubes instead of conventional-sized tubes in air conditioners, heat exchangers must be redesigned. This includes redesigning the fin and tube circuits. Design optimization requires the use of computational fluid dynamics to analyze airflow around the tubes and fins, as well... | https://en.wikipedia.org/wiki?curid=37753951 |
Internally grooved copper tube In China, Chigo, Gree, and Kelon are producing air conditioners with coils that have 5-mm diameter tubes. A variety of fin designs have been developed for use with small-diameter copper tubes. The performance of slotted and louvered fin designs have been evaluated and compared as a functi... | https://en.wikipedia.org/wiki?curid=37753951 |
Internally grooved copper tube Carbon dioxide (R744) refrigerants are used in modern vending machines, refrigerated supermarket display cases, ice-skating rinks, and other emerging applications. Microgroove’s smaller diameter copper tubes have the strength to withstand the very high gas cooler and burst pressures of R7... | https://en.wikipedia.org/wiki?curid=37753951 |
Internally grooved copper tube Copper is an antimicrobial material. Bio buildup can be reduced with copper coils. This helps to maintain high levels of energy efficiency for longer periods of time and avoids energy efficiency drop off over time. The use of copper coils to inhibit the growth of fungi and bacteria is a r... | https://en.wikipedia.org/wiki?curid=37753951 |
Internally grooved copper tube Existing air conditioner coils made of round copper tubes and aluminium fins (CTAF coils) typically are mechanically assembled using tube expansion. The equipment used in manufacturing Microgroove products expands the tubes circumferentially (i.e., the circumference of the tube is increas... | https://en.wikipedia.org/wiki?curid=37753951 |
Internally grooved copper tube ACR coils from original equipment manufacturers (OEMs) Gree, Haier, Midea, Chigo and HiSense Kelon are also available. Copper in heat exchangers Simulation-Based Comparison of Optimized AC Coils Using Small Diameter Copper and Aluminium Microchannel Tubes, by John Hipchen, Robert Weed, Mi... | https://en.wikipedia.org/wiki?curid=37753951 |
Surface and bulk erosion are two different forms of erosion that describe how a degrading polymer erodes. In surface erosion, the polymer degrades from the exterior surface. The inside of the material does not degrade until all the surrounding material around it has been degraded. In bulk erosion, degradation occurs th... | https://en.wikipedia.org/wiki?curid=37755119 |
Surface and bulk erosion If the degradation process is faster than the diffusion process, surface erosion will occur since the material’s surface will quickly degrade before water has time to diffuse and penetrate through the material. If the diffusion process is faster than the degradation process bulk erosion will oc... | https://en.wikipedia.org/wiki?curid=37755119 |
Surface and bulk erosion The rate of degradation is modeled by the following equation formula_2 Where M= molecular weight of polymer, N=Avogadro's number, N=degree of polymerization, p=density of polymer, k=degradation rate The ratio between diffusion time and degradation time gives us a dimensionless parameter ε calle... | https://en.wikipedia.org/wiki?curid=37755119 |
C9H16O The molecular formula CHO may refer to: | https://en.wikipedia.org/wiki?curid=37758885 |
David Logan (chemist) Professor David Edwin Logan (born 27 August 1956)' is a Northern Irish chemist, and has been Coulson Professor of Theoretical Chemistry at the University of Oxford since 2005. He went to Gilnahirk Primary School in east Belfast. He attended the grammar school Sullivan Upper School in Holywood, Cou... | https://en.wikipedia.org/wiki?curid=37759215 |
Oxychlorination In organic chemistry oxychlorination is a process for making C-Cl bonds. In contrast with direct use of Cl, oxychlorination uses hydrogen chloride in combination with oxygen. This process is attractive industrially because hydrogen chloride is less expensive than chlorine. The reaction is usually initia... | https://en.wikipedia.org/wiki?curid=37764606 |
NRF51 series The nRF51 Series SoCs are a family of ultra low-power wireless SoCs from Nordic Semiconductor. The nRF51 series are designed to enable a wide range of wireless embedded systems and consumer electronic products in many different fields of wireless connectivity including wearable devices, computer peripheral... | https://en.wikipedia.org/wiki?curid=37771398 |
List of countries by titanium production This is a list of countries by titanium sponge production in 2010–2016 based on USGS figures. The production figures are for titanium sponge, units are in metric tons. | https://en.wikipedia.org/wiki?curid=37771544 |
Harold Friedman Harold Leo Friedman (born 24 March 1923 in Manhattan, New York City; died 16 September 2005 in Stony Brook, Long Island, New York) was an American physical chemist who contributed to the study of thermodynamic properties of fluids with applications in oceanography and physiology. | https://en.wikipedia.org/wiki?curid=37774062 |
Golm Metabolome Database The (GMD) is a gas chromatography (GC) – mass spectrometry (MS) reference library dedicated to metabolite profiling experiments and comprises mass spectral and retention index (RI) information for non-annotated mass spectral tags (MSTs, mass spectral information with retention time attached ind... | https://en.wikipedia.org/wiki?curid=37777717 |
Golm Metabolome Database While the different mass detector technologies, namely quadrupole, ion trap and time of flight, can be deemed irrelevant, the chromatography settings such as temperature programming, type of capillary column and choice of column manufacturer heavily affect the empirically determined RI properti... | https://en.wikipedia.org/wiki?curid=37777717 |
Golm Metabolome Database Batch processing is enabled via Simple Object Access Protocol (SOAP)-based web services while web-based data access services expose particular data base entities adapting Representational State Transfer (ReST) principles and mass spectral standards such as NIST-MSP and JCAMP-DX. The GMD visuali... | https://en.wikipedia.org/wiki?curid=37777717 |
Cyclopropyl cyanide is an organic compound consisting of a nitrile group as a substituent on a cyclopropane ring. It is the smallest cyclic compound containing a nitrile. The structure of cyclopropyl cyanide has been determined by a variety of experiments, including microwave spectroscopy, rotational spectroscopy and p... | https://en.wikipedia.org/wiki?curid=37779187 |
Voluntary Protection Program Voluntary Protection Programs (VPP) is an Occupational Safety and Health Administration (OSHA) initiative that encourages private industry and federal agencies to prevent workplace injuries and illnesses through hazard prevention and control, worksite analysis, training; and cooperation bet... | https://en.wikipedia.org/wiki?curid=37784287 |
Voluntary Protection Program This type of certification is for companies whose employees work on location at various sites. Large organizations that implement organization-wide health and safety management programs that extend to it individual sites are able to seek corporate VPP certification. As of 10/31/2012 2,370 e... | https://en.wikipedia.org/wiki?curid=37784287 |
Tensor Contraction Engine The (TCE) is a compiler for a domain-specific language that allows chemists to specify the computation in a high-level Mathematica-style language. It transforms tensor summation expressions to low-level code (C/Fortran) for specific hardware being mindful of memory availability, communication ... | https://en.wikipedia.org/wiki?curid=37784373 |
Thomas–Fermi screening is a theoretical approach to calculate the effects of electric field screening by electrons in a solid. It is a special case of the more general Lindhard theory; in particular, is the limit of the Lindhard formula when the wavevector (the reciprocal of the length-scale of interest) is much smalle... | https://en.wikipedia.org/wiki?curid=37793655 |
Thomas–Fermi screening As the number of electrons in the system increases (with fixed temperature and volume), the internal chemical potential increases. This consequence is largely because electrons satisfy the Pauli exclusion principle: only one electron may occupy an energy level and lower-energy electron states are... | https://en.wikipedia.org/wiki?curid=37793655 |
Thomas–Fermi screening Nevertheless, the Thomas–Fermi model is likely to be a reasonably accurate approximation as long as the potential does not vary much over lengths comparable or smaller than 1 / "k". This length usually corresponds to a few atoms in metals. Finally, the Thomas–Fermi model assumes that the electron... | https://en.wikipedia.org/wiki?curid=37793655 |
Thomas–Fermi screening This relation can be converted into a wavevector-dependent dielectric function: where At long distances ("q"→0), the dielectric constant approaches infinity, reflecting the fact that charges get closer and closer to perfectly screened as you observe them from further away. If a point charge "Q" i... | https://en.wikipedia.org/wiki?curid=37793655 |
Thomas–Fermi screening In the classical limit formula_31, we find formula_32, while in the degenerate limit formula_33 we find A simple approximate form that recovers both limits correctly is for any power formula_36. A value that gives decent agreement with the exact result for all formula_37 is formula_38, which has ... | https://en.wikipedia.org/wiki?curid=37793655 |
Trisoxazolines (Often abbreviated TRISOX or TOX) are a class of tridentate, chiral ligands composed of three oxazoline rings. Despite being neutral they are able to form stable complexes with high oxidation state metals, such as rare earths, due to the chelate effect. The ligands have been investigated for molecular re... | https://en.wikipedia.org/wiki?curid=37796415 |
Trisoxazolines In general synthesis involves the generation of separate mono‑oxazoline (typically halogenated) and bis-oxazoline units, which are then coupled using a strong base such as BuLi or KN(SiMe). In addition to the inclusion of heterochirality, modular synthesis also allows for the synthesis of 'lopsided' stru... | https://en.wikipedia.org/wiki?curid=37796415 |
Speciality chemicals (also called specialties or effect chemicals) are particular chemical products which provide a wide variety of effects on which many other industry sectors rely. Some of the categories of speciality chemicals are adhesives, agrichemicals, cleaning materials, colors, cosmetic additives, construction... | https://en.wikipedia.org/wiki?curid=37805597 |
Speciality chemicals In the USA the speciality chemical manufacturers are members of the Society of Chemical Manufacturers and Affiliates (SOCMA). In the United Kingdom such companies are members of the British Association for Chemical Specialties (BACS). SOCMA state that “Specialty chemicals differ from commodity chem... | https://en.wikipedia.org/wiki?curid=37805597 |
Speciality chemicals Most speciality chemicals are organic chemicals that are used in a wide range of every day products used by consumers and industry. It is a consumer driven sector and as such the specialty chemical industry has to be innovative, entrepreneurial and consumer-driven. In contrast to the production of ... | https://en.wikipedia.org/wiki?curid=37805597 |
Speciality chemicals These speciality products are marketed as pesticides, speciality polymers, electronic chemicals, surfactants, construction chemicals, Industrial Cleaners, flavors and fragrances, speciality coatings, printing inks, water-soluble polymers, food additives, paper chemicals, oil field chemicals, plasti... | https://en.wikipedia.org/wiki?curid=37805597 |
Speciality chemicals The 10 largest European speciality chemical companies are BASF, AkzoNobel, Clariant, Evonik, Cognis, Kemira, Lanxess, Rhodia, Wacker and Croda. By definition, speciality chemicals are produced in relatively small quantities but they represent 28 per cent of EU chemical sales. The 10 largest USA Spe... | https://en.wikipedia.org/wiki?curid=37805597 |
Speciality chemicals As Speciality Chemical manufacturers, unlike commodity chemical manufacturers, are less dependent on large scale infrastructure, therefore Speciality Chemical companies can be found in almost all regions of the UK. Some 80% of the United Kingdom Chemical industry is based in the north of the countr... | https://en.wikipedia.org/wiki?curid=37805597 |
Ruizite is a sorosilicate mineral with formula CaMnSiO(OH)·2HO. It was discovered at the Christmas mine in Christmas, Arizona, and described in 1977. The mineral is named for discoverer Joe Ana Ruiz. is translucent and orange to red-brown in color with an apricot yellow streak. The mineral occurs as euhedral prisms up ... | https://en.wikipedia.org/wiki?curid=37807175 |
Ruizite During the investigation of junitoite at the Christmas mine in Christmas, Arizona, Joe Ana Ruiz and Robert Jenkins discovered an unknown brown mineral. Mine geologist Dave Cook located better specimens, and it was determined to be a new mineral species. The mineral was named "ruizite" in honor of Joe Ruiz as di... | https://en.wikipedia.org/wiki?curid=37807175 |
Junitoite is a mineral with formula CaZnSiO·HO. It was discovered at the Christmas mine in Christmas, Arizona, and described in 1976. The mineral is named for mineral chemist Jun Ito (1926–1978). is transparent to translucent and is colorless, milk-white, or colored due to alteration. Crystals grow up to and have high ... | https://en.wikipedia.org/wiki?curid=37807180 |
Junitoite Further samples came from the collections of Ruiz and Raymond Diaz. Williams identified the specimens as a new mineral and described it in the journal "American Mineralogist" in 1976. He named it "junitoite" in honor of Jun Ito, the mineral chemist who noted the compound of which the mineral is composed. The ... | https://en.wikipedia.org/wiki?curid=37807180 |
Concrete (perfumery) Concrete, in perfumery, is a semi-solid mass obtained by solvent extraction of fresh plant material. Concretes are produced mainly from flowers (rose, jasmine, tuberose, jonquil, ylang-ylang, mimosa, boronia, etc.), but also from other plant materials (lavender, lavandin, geranium, clary sage, viol... | https://en.wikipedia.org/wiki?curid=37808027 |
C9H17NO4 The molecular formula CHNO may refer to: | https://en.wikipedia.org/wiki?curid=37811450 |
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