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Plos One : Multi-signal Sedimentation Velocity Analysis with Mass Conservation for Determining the Stoichiometry of Protein Complexes, Volume 8

By: Hendrik W. Van Veen

...Description : Multi-signal sedimentation velocity analytical ultracentrifugation (MSSV) is a powerful tool for the determination of the number, stoichiometry, and hydrodynamic shape of reversible protein complexes in two- and three-component systems. I...

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Sedimentation coefficient

Encyclopedia Article

...n coefficient s of a particle is used to characterize its behaviour in sedimentation processes, notably centrifugation . It is defined as the ra... ...sses, notably centrifugation . It is defined as the ratio of a particle's sedimentation velocity to the acceleration that is applied to it (causi... ...tation velocity to the acceleration that is applied to it (causing the sedimentation). : s = \frac{v_t}{a} The sedimentation speed v_t (in ms−1... ...inal formula: : s = \frac{v_t}{r\omega^2} = \frac{m}{6\pi \eta r_0} The sedimentation coefficient has the dimension s of a unit of time and is e... ... : s = \frac{v_t}{r\omega^2} = \frac{m}{6\pi \eta r_0} The sedimentation coefficient has the dimension s of a unit of time and is expressed in s... ...berg s. One svedberg is defined as exactly 10−13  s . Essentially the sedimentation coefficient serves to normalize the sedimentation rate of a p... ...edberg is defined as exactly 10−13  s . Essentially the sedimentation coefficient serves to normalize the sedimentation rate of a particle by the... ...ies of the particle and the medium in which it is suspended. Sedimentation coefficients quoted in literature usually pertain to sedimentation in water... ...r at 20°C. Bigger particles sediment faster and have higher sedimentation coefficients (svedberg, or S values). Sedimentation coefficients are, howev...

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Plos Biology : Α-actinin-4-mediated Fsgs ; an Inherited Kidney Disease Caused by an Aggregated and Rapidly Degraded Cytoskeletal Protein, Volume 2

By: Peter Mundel

...says, cell-based studies, and the development of a new mouse model. We found that a fraction of the mutant protein forms large aggregates with a high sedimentation coefficient. Localization of mutant a-actinin-4 in transfected and injected cells, as well as in situ glomeruli, showed aggregates of the mutant protein. Video microscopy showed the mutant a-actinin-4 to be mark...

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Sedimentation

Encyclopedia Article

...e due to gravity, centrifugal acceleration or electromagnetism. In geology sedimentation is often used as the polar opposite of erosion, i.e., the ter... ...Settling is the falling of suspended particles through the liquid, whereas sedimentation is the termination of the settling process. Sedimentation ma... ...n be difficult to apply a sufficiently strong force to produce significant sedimentation. The term is typically used in geology, to describe the depo... ... industry to separate out cells from the culture media. Experiments In a sedimentation experiment called tripothsis, the applied force accelerates t... ...athrm{app} = q E_\mathrm{app}. Hence, it is generally possible to define a sedimentation coefficient s \ \stackrel{\mathrm{def />{=}\ q/f that depen... ... E_\mathrm{app}. Hence, it is generally possible to define a sedimentation coefficient s \ \stackrel{\mathrm{def />{=}\ q/f that depends only on the... ...ason–Weaver equation, which has a simple exact solution. The sedimentation coefficient s in this case equals m_{b}/f, where m_{b} is the buoyant mass.... ...the Lamm equation, which likewise has an exact solution. The sedimentation coefficient s also equals m_{b}/f, where m_{b} is the buoyant mass. However...

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Applied Sedimentation

By: Trask, Parker D. (Parker Davies), 1899-1961; National Research Council (U.S.). Committee on Symposium on Sedimentation

...r Libraries http://www.archive.org/details/appliedsedimenta50tras APPLIED SEDIMENTATION COMMITTEE MEMBERS Roland F. Beers Robert F. Black Carl B. Br... ...zaghi Frank C. Whitmore, Jr. Parker D. Trask, Chairman 13* ^M > C APPLIED SEDIMENTATION Edited by PARKER D. TRASK Supervising Geologist Division of S... ...rancisco, California Prepared under direction of Committee on Symposium on Sedimentation Division of Geology and Geography National Research Council W... ...roblems; and (3) acquaint students with the many practical applications of sedimentation so that they may be more fully informed as to possibilities f... ...k has been prepared under the sponsorship of the Committee on Symposium on Sedimentation of the Division of Geology and Ge- ography of the National Re... ... the angle and smoothness of the slope along which the material moves, the coefficient of friction, and the amount (mass) of material that moves. Orga... ...locity of the water, the degree of sorting of the constituents (uniformity coefficient of the engineers) is not the same. Slowly moving water seemingl... ...iments and the more poorly they are sorted, the higher is their uniformity coefficient and the less permeable they become. When considering the releas... ...be the flow by its shear stress only. In some of these formulas one or two coefficients have been introduced which may change in value somewhat for di...

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Sedimentation equilibrium

Encyclopedia Article

...ts when the rate of transport of each material in any one direction due to sedimentation equals the rate of transport in the opposite direction due to... ...n equals the rate of transport in the opposite direction due to diffusion. Sedimentation is due to an external force, such as gravity (for very large ... ...eveloped from the Mason-Weaver equation. The advantage of using analytical sedimentation equilibrium analysis for Molecular Weight of proteins and the... ...teracting mixtures is the avoidance of need for derivation of a frictional coefficient, otherwise required for interpretation of dynamic sedimentation... ...a frictional coefficient, otherwise required for interpretation of dynamic sedimentation. It was discovered for large particles by... ... Application in determining molecular mass Sedimentation equilibrium can be used to determine molecular mass. It forms...

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Erosion and Sedimentation

By: Termier, Henri.; Termier, Genevieve.

...ic Literature Collection World Public Library.org Title: EROSION AND SEDIMENTATION Author: D. W. HUMPHRIES Language: English Subject: Fiction... ...... ...ssor of Geology, Columbia University Termier, Henri and Genevieve Erosionand Sedimentation Sehwarzbach, Martin Climates of the Past Additional titles ... ...ches at the Centre Nationale des Recherches Scienlifiques, Paris Erosion and Sedimentation Translated by D. W. Humphries Department of Geology , Unive... ...tions. Secondly, we have stressed the close relationship between erosion and sedimentation on the land surfaces and in the seas: detrital sedimentatio... ...countries, to the disintegration of rocks whose components possess different coefficients of expansion. 3. Agents of the Biosphere The biosphere plays...

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Svedberg

Encyclopedia Article
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Partition Coefficients for Metals in Surface Water, Soil, And Waste

By: Jerry D. Allison

...EPA/600/R-05/074 July 2005 PARTITION COEFFICIENTS FOR METALS IN SURFACE WATER, SOIL, AND WASTE by Jerry D. ... ...c pollutants from treatment facilities. In this project, metal partition coefficients were developed for the watershed, surface water, and source mo... ...ion Athens, Georgia iii ABSTRACT This report presents metal partition coefficients for the surface water pathway and for the source model used i... ...under development by the U.S. Environmental Protection Agency. Partition coefficients values are presented for partitioning between soil and water; ... ...lution species in the water of streams, rivers, and lakes. Some partition coefficients are also presented to represent metal partitioning between th... ...L. Diamond, 1996. The role of phytoplankton in the removal of arsenic by sedimentation from surface waters. Hydrobiologia, 324:117-123. [Fa96] Fern...

...TABLE OF CONTENTS page 1.0 INTRODUCTION AND BACKGROUND ................................ 1-1 2.0 LITERATURE SURVEY FOR METAL PARTITION COEFFICIENTS ........ 2-1 2.1 SELECTION CRITERIA FOR PARTITION COEFFICIENTS .......... 2-3 2.2 RESULTS OF THE LITERATURE SURVEY ....................... 2-3 3.0 ANALYSIS OF RETRIEVED DATA AND DEVELOPMENT OF PARTITION COEFFICIE...

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Unit operations

Encyclopedia Article

...ation Pultrusion S Sedimentation coefficient Separation process ... ... Pultrusion S Sedimentation coefficient Separation process ... ...ation Pultrusion S Sedimentation coefficient Separation process ... ... Pultrusion S Sedimentation coefficient Separation process ...

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Depositional Behavior of Cohesive Sediments

By: Mehta, Ashish J

...ycle. 267 xiii NOMENCLATURE a elevation of lowest sample tap a' empirical coefficient in the exponential relation between W' and time s A cross-secti... ...ealized estuary A Angstrb'm unit A area of ring as well as false bottom A. coefficient in the exponential solution for T b annular channel width B wid... ...ediment concentration C suspended sediment concentration at y = a Cj. drag coefficient for drag exerted on a settling floe C lift coefficient C„ refer... ...ments of Etter and Hoyer C initial suspended sediment concentration C drag coefficient in near-bed zone T C equilibrium concentration eq C fraction of... ...m d depth of flow measured from bed surface d floe diameter Dj^ dispersion coefficient f(T, ) function of t. D b F gage factor F" cohesive force at se... ...ding to the Task Committee on Preparation of Sediment Manual, Committee on Sedimentation of the Hydraulics Division (1972), fine sediment carried in s... ...ima Hamilton, Inc., Waltham, Mass., 1968. Task Committee on Preparation of Sedimentation Manual, Committee on Sedimentation of the Hydraulics Division...

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Petuvirus

Encyclopedia Article

...s have a buoyant density in CsCl of 1.31 g cm-3 and there are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient... ...nt density in CsCl of 1.31 g cm-3 and there are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient is 218–251.5–...

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Longshore Current and Sediment Transport

By: Thornton, Edward Bennett, 1939

...ed of wave energy propagation c = wave celerity in deep water C, = Chezy's coefficient d = mean sand grain size D = n + h, total depth of water D^ = t... ...r D^ = total depth of water at location of breaking v;aves e^ = efficiency coefficient associated with bed load transport ^s ^ efficiency coefficient ... ...ve number K(a) = ratio between set-up slope and beach slope K = refraction coefficient r K = shoaling coefficient s *= L = wave length L = wave length... ...ansport per unit width associated with fluctuating motion n = transmission coefficient N, = normal stress at the bed N^ = normal stress at level of su... ...tic viscosity w = wave frequency cf) = velocity potential $ = permeability coefficient p = density of fluid Pg = density of sediments a = local wave f... ...niv. Civil Eng. Res. Rept. 14, 1959. 41. Bagnold, R.A. Mechanics of Marine Sedimentation, The Sea . Inter- science Publishers, New York, 2=507-528, 19...

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Dianthovirus

Encyclopedia Article

...he capsid is 31-35 nm in diameter. The buoyant density in CsCl of virions is between 1.363-1.366 g cm-3(1). They have a sedimentation coefficient... ...1-35 nm in diameter. The buoyant density in CsCl of virions is between 1.363-1.366 g cm-3(1). They have a sedimentation coefficient of 126-132-13...

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The Environmental Toxicology of Polycyclic Aromatic Hydrocarbons : Report

...tography Indole Acetic Acid Intra-Peritoneal Capacity Factor Sorption Rate Coefficient of freely dissolved PAH to DOC Depuration Rate Coefficient Octa... ... dissolved PAH to DOC Depuration Rate Coefficient Octanol -Water Partition coefficient Sorption Rate Coefficient of freely dissolved PAH to DHM Sorpti... ...ent Sorption Rate Coefficient of freely dissolved PAH to DHM Sorption Rate Coefficient derived through reverse phase separation. Uptake Rate Coefficie... ... therefore lipophilic, their chemical properties (octanol -water partition coefficient - Kq^, water solubility, etc.) favour their partition into biot... ...on factors for fish tend to be low relative to their lipid-water partition coefficients (Southworth et aK 1979b, Spacie et aK 1983), (Tables 2.1.20 an...

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Centrifugation

Encyclopedia Article

...ugation is a process that involves the use of the centrifugal force for the sedimentation of mixture s with a centrifuge, used in industry and in ... ...ing concentration (" gradient "). Molecular properties can be modeled through sedimentation velocity analysis or sedimentation equilibrium analysis.... ...inde had successfully analyzed large grained sols terms of their gravitational sedimentation.Van Holde, K. E. (1998). Analytical ultracentrifugation f... ...e main protein of interest. Through a series of experiments, utilizing the sedimentation equilibrium technique, two important observations were ... ...was needed, and thus the ultracentrifuge was created to apply the theory of sedimentation-diffusion. The same molecular mass was determined, and t... ...geneous Protein-Protein Interactions: Lamm Equation Modeling and Sedimentation Coefficient Distributions c(s). Biophysical Journal, Vol. 89, 2005. pp....

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Oligocene Sedimentation, Stratigraphy, Paleoecology and Paleoclimatology in the Big Badlands of South Dakota : Fieldiana, Geology Memoirs, Volume 5

By: Clark, John, 1909-1967; Kietzke, Kenneth K., Joint Author

...° 'V Univ ""V -*V IUINOIS UBRJdP »t APR lo OCT^ DEC o 7 Mb© • ^ OLIGOCENE SEDIMENTATION, STRATIGRAPHY, PALEOECOLOGY AND PALEOCLIMATOLOGY IN THE BIG... ...r I ^/cAgO FIELD MUSEUM OF NATURAL HISTORY CHICAGO, U.S.A. 1967 OLIGOCENE SEDIMENTATION, STRATIGRAPHY, PALEOECOLOGY AND PALEOCLIMATOLOGY IN THE BIG... ...COLOGY AND PALEOCLIMATOLOGY IN THE BIG BADLANDS OF SOUTH DAKOTA OLIGOCENE SEDIMENTATION, STRATIGRAPHY, PALEOECOLOGY AND PALEOCLIMATOLOGY IN THE BIG... ...25 Stratigraphic Paleontology 55 Paleogeography 59 Interpretation of Chadron Sedimentation 60 Paleoecology 67 Interpretative Summary 72 Conclusions 74... ...erpretation of the Scenic Member 92 Relationship to Orellan Stratigfaphy and Sedimentation in Nebraska 102 VII. Paleoecology of the Lower Nodular Zone... ...eja Formation of Texas appear to fall into two morphological groups, and the coefficients of variability of dental measurements likewise suggest that ... ...ngth ofM 2 (range, 9.1- 12.0 mm; mean, 10.07 mm; standard deviation 1.06 mm; coefficient of variability, 10.5). So far as known, this population is li... ...e in length ofM 2, 9.4-10.5 mm; mean, 10.02 mm; standard deviation, .519 mm; coefficient of variability, 5.16). In addition, there are very minor diff... ...h of M 2 ; range, 11.0-15.0 mm; mean, 12.92 mm; standard deviation, 1.06 mm; coefficient of variability, 8.21. The rather high variability of the hypo...

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Differential centrifugation

Encyclopedia Article

...he centrifugal force . Finally, purification may be done through equilibrium sedimentation, and the desired layer is extracted for further analysis.... ...ting centrifugal speed forces of 800, 000g to 1, 000, 000g. This force causes sedimentation of macromolecules, and can even cause non-uniform distri... ...Additional steps can be taken to further refine each of the obtained pellets. Sedimentation depends on mass, shape, and partial specific volume of ... ...acromolecule, as well as solvent density, rotor size and rate of rotation. The sedimentation velocity can be monitored during the experiment to calcul... ...be monitored during the experiment to calculate molecular weight . Values of sedimentation coefficient (S) can be calculated. Large values of S (fa... ...uring the experiment to calculate molecular weight . Values of sedimentation coefficient (S) can be calculated. Large values of S (faster sedimenta... ...nse particle sediments more rapidly. Elongated proteins have larger frictional coefficients, and sediment more slowly to ensure accuracy. Techniques ...

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A Simple Inverse Method for the Distribution of Basal Sliding Coefficients Under Ice Sheets, Applied to Antarctica : Volume 6, Issue 2 (12/04/2012)

By: D. Pollard; R. M. Deconto

...enland and Antarctic ice sheets. Here a very simple model-based method is described for deducing the modern spatial distribution of basal sliding coefficients. The model is run forward in time, and the basal sliding coefficient at each grid point is periodically increased or decreased depending on whether the local ice surface elevation is too high or too low com...

... Amsterdam, 704 pp., 2010.; Dowdeswell, J. A. and Siegert, M. J.: Ice-sheet numerical modeling and marine geophysical measurements of glacier-derived sedimentation on the Eurasian Arctic continental margins, Geol. Soc. Am. Bull., 111, 1080–1097, 1999.; Drewry, D. J.: Sedimentary basins of the East Antarctic craton from geophysical evidence, Tectonophys., 36, 301–314, 1976....

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Centrifuge

Encyclopedia Article

...parate the components of blood in blood banks. The centrifuge works using the sedimentation principle, where the centripetal acceleration causes de... ...action, its mitigation, and comparison with centrifuge tests * Lamm equation Sedimentation Centrifugal force Centrifugation Gas centrifuge Sedim... ...edimentation Centrifugal force Centrifugation Gas centrifuge Sedimentation coefficient Clearing factor Hydroextractor RCF Calculator and Nomo...

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Observations and Modelling of Microphysical Variability, Aggregation and Sedimentation in Tropical Storm Cirrus Outflow Regions : Volume 11, Issue 8 (22/08/2011)

By: K. N. Bower; A. Heymsfield; T. W. Choularton; M. J. Flynn; J. Hacker; P. J. Connolly; G. Allen; M. W. Gallagher; G. Vaughan

...ormed. The observed microphysics has been compared to a bulk and explicit microphysical model of the anvil region including crystal aggregation and sedimentation. <br></br> It has been found that in flights made using straight and level runs perpendicular to the storm that the number of ice crystals initially decreased with distance from the storm as aggregation took...

...lly, P. J., and Lee, C.: Testing an ensemble model of cirrus ice crystals using midlatitude in situ estimates of ice water content, volume extinction coefficient and the total solar optical depth, J. Quant. Spectrosc. Ra., 110, 1579–1598, 2009.; Baumgärdner, D., Jonsson, H., Dawson, W., O'Connor, D., and Newton, R.: The Cloud, Aerosol and Precipitation Spectrometer: a new ...

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List of scientific units named after people

Encyclopedia Article

...scale, psychoacoustical scale Heinrich Barkhausen brewster (B), stress optic coefficient David Brewster centimorgan, recombinantion frequency Thoma... ...nits, capsaicin content of chili peppers Wilbur Scoville svedberg (S or Sv), sedimentation rate Theodor Svedberg sverdrup (Sv), volume transport r...

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Materials processing in space

By: NON

... are common. Although reducing gravity may have some value for preventing sedimentation, little or nothing new of scientific value is to be learned ... ...the local equilibrium equations of state, local contact angles, transport coefficients, and intrinsic phase-transforma- tion rate constants are all ... ...ference across a swarm becomes significant. Equations of state, transport coefficients, and transformation rate constants then depend on gravity in ... ...d, though they are basically impor- tant to materials science. Diffusion coefficients tend toward zero None of the dynamic processes in vicinities ... ...more dense and upward if they are less dense than the contin- uous fluid. Sedimentation of microscopic particles and macromolecules . occurs in the ... ...oided, even by going to a low-gravity environment if possible. tling and sedimentation. for many of the past suggestions for low-gravity experiment... ...ic pressure in fluids; settling of particles freely suspended in fluids; sedimentation of colloids and macromolecules; and buoyancy force in non-un... ... the diffusivity or conductivity. Similarly, the effects of convection on sedimentation regimes depend on the convec- tive velocity, the particle co... ...bute to the measurement of basic material properties such as distribution coefficients and diffusion coefficients, and possibly lead to the producti...

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Bovine serum albumin

Encyclopedia Article

...66.5 kDa) isoelectric point in water at 25 °C: 4.7 Extinction coefficient of 43, 824 M−1cm−1 at 279 nm Dimensions: 140 × 40 × 4... ....2-7 Optical Rotation: 259: -61°; 264: -63° Stokes Radius (rs): 3.48 nm Sedimentation constant, S20, W × 1013: 4.5 (monomer), 6.7 (dimer) Diffusio...

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Feasibility study and model development for a ferrofluid viscous damper Final report, 8 Nov. 1966 - 8 Mar. 1967

By: NON

... 40 VI Silicone Surfactants Obtained for Screening Tests ......... 42 VI1 Sedimentation Tests in Dimethyl Silicone Fluid ........... 44 VI11 List... ...e dissipative element. Given the proper natur- al frequencies and a damping coefficient within the specified bounds, the satel- lite motion can be h... ... co- efficient of viscosity of a suspension is higher than the temperature coefficient of the carrier fluid, The thickness S is a 4. Desired Prop... ...n of the carrier fluid between 0°F and 70°F has to be such that the damping coefficient variation is less than 5.0 to 1 in this temperature range. ... ...all mill set at 505 rpm, with the following ingredients: -41- TABLE VI1 SEDIMENTATION TESTS IN DIMETHYL SILICONE FLUID (THREE CENTISTOKES) 60 ml... ...perty. This would be harmful because of the direct influence on the damping coefficient of the viscous damper. Change of viscosity of the ferromagne... ...48 pound. (Note: satisfy peak combinations of angular velocity and damping coefficient. The magnetic system is designed to operate with a safety fa...

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Eukaryotic Small Ribosomal Subunit (40S)

Encyclopedia Article

...Ribosomal particles are denoted according to their sedimentation coefficient s in Svedberg units . The 40S subunit is the s... ...Ribosomal particles are denoted according to their sedimentation coefficient s in Svedberg units . The 40S subunit is the small subunit o...

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Geopotential Research Mission (GRM)

By: NON

...odeling presentations were by D.T. Sandwell and C. Liu on the influence of sedimentation of the gravity signal of basement topography, and by P. Olson... ...O'Connell obtains two high a heat flow with Hager's viscosity ratio if the coefficient of thermal expansion is 3 x 10-5 throughout the mantle. A study... ... map and those of the lithospheric magnetic susceptibility. Their harmonic coefficients are related through the fundamental causality relationship gov... ...tantly changing because of mass redistribution associated with erosion and sedimentation. To understand just the effect of sedimentation on the contin... ...I discussed the possibility of a mathematical connection between the geoid coefficients and the spherical harmonic components of the flow (Runcorn, 19... ...malies are linearly related to seismic velocity anomalies through standard coefficients of proportionality, leads to inferred variations of - _+300° C... ...ccuracy is the inaccuracy in the values assigned to the spherical harmonic coefficients used to model the earth's gravity field. This presentation des...

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Absolute molar mass

Encyclopedia Article

...to the molar mass. The most useful of these were membrane osmometry and sedimentation . Another absolute instrumental approach was also possible w... ...nd others. The problem with measurements made using membrane osmometry and sedimentation was that they only characterized the bulk properties of the ... ... . Batch mode measurements can also be used to determine the second virial coefficient (A2), a value that gives a measure of the likelihood of crystal...

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Space programs summary no. 37-48, volume 3 for the period October 1, 1967 to November 30, 1967. Supporting research and advanced development

By: NON

...storage or non- availability of the data, not all of the rows of the k X n coefficient matrix A = (aij} can be processed at each entry into SEQLSQ. e.... ...at for a given prob- lem such as Eq. (3) where the condition number of the coefficient matrix exceeds 10 _, there are vectors b_, (i = 1, • • • , m), ... ...e obtains the real and complex roots of an nth degree polynomial with real coefficients. e. Mathematical method. This routine uses a combined Newton-M... ...strength and elongation, shrinkage, tear- ing strength, folding endurance, coefficient of linear expansion, moisture absorption, dielectric strength, ... ...on credited to Eyring: _kT [ --AG \ rr : --_-- exp _) where = transmission coefficient h = Planck's constant G = Gibb's free energy Since AG = AH -- T... ...ery small particles, high-speed centrifugation is usually used to speed up sedimentation of the slurry (Ref. 1). Using this technique on glass beads (... ...oser, B. G., and Landel, R. F., "Rheology of Slurries III: A Theory of the Sedimentation Volume for Systems Containing Uniform Spheres." Paper present...

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Condensed matter physics

Encyclopedia Article

...ena Electroluminescence Electromechanical coupling coefficient Electron-hole droplets Electron cyclotr... ...s) Screening effect Secondary emission Sedimentation potential Selected area diffraction S... ...ena Electroluminescence Electromechanical coupling coefficient Electron-hole droplets Electron cyclotr... ...s) Screening effect Secondary emission Sedimentation potential Selected area diffraction S...

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Workshop on the Tectonic Evolution of Greenstone Belts

By: NON

...uvial fan deposits in the rapidly subsiding Kaldurga basin (4). Subsequent sedimentation and volcanism proceeded in essentially deep marine environmen... ...ivated pre-existing lineaments, formation of broad basin(s), volcanism and sedimentation concomitant with variable rates of subsidence of the basin(s)... ...preting both statistical measures of relationship (such as the correlation coefficient) and empathetic analysis of "patterns and trends" expressed in ... ...deformation. A Dl event affected the calc-alkaline sequences and pre-dated sedimentation and eruption of alkaline volcanic rocks (e.g. Tamiskaming seq... ...is indicates that the felsic intrusions were emplaced along thrusts during sedimentation and a prolonged period of horizontal compressional stress exe... ...0±9 1.16*0.51 11 where n is the number of data pairs, r is the correlation coefficient, Q* is the mean heat flow and A* is the mean heat generation of... ... Pongola basin(6). Minor contemporaneous volcanism accompanied the fluvial sedimentation and heralded a period of subaerial extrusion of lavas (the 2.... ...use of REE concentra- tions in megacrysts in conjunction with distribution coefficients for plagio- clase and basaltic melts were fraught with problem... ...oclases [7], These values in conjunction with the most recent distribution coefficients indicate melts with nearly flat REE patterns at 10X to 20X cho...

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Ostwald ripening

Encyclopedia Article

...ume of the particle material align = "right" D = diffusion coefficient of the particle material align = "right" R_g = ... ...can lead to the destabilization of emulsions (for example, by creaming and sedimentation). Specific examples An everyday example of Ostwald ripeni...

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Toward an understanding of global change: Initial priorities for US contributions to the International Geosphere-Biosphere Program

By: NON

... reservoir for phosphorus and nitrogen. As a result, processes that affect sedimentation and resuspension may exert a major influence on the flux of p... ...lack of direct global- scale documentation of the relationship betaeen the sedimentation and geochemistry of fossils and the physical and chemical pro... ...hniques are developed over the next decade. Cores taken in regions of high sedimentation rates are needed to provide information on rates of change th... ...s particularly important to encourage the study of authigenic phospho- rus sedimentation in these environments. The success of these efforts will depe... ... depend on significant breakthroughs in the methods of studying phosphorus sedimentation. The importance of the phosphorus mass balance justifies sign... ...Even in the carbon dioxide case, howev__r, com- parable input/output (I/0) coefficients for various types of land use conversion activities are still ... ...in global change. For example, the uncritical use of contemporary emission coefficients for assessment of historical carbon monoxide emissions in the ... ...en:_. Rcflcctla_, Chanses in Human Economy and Tedmology Methane Emissions Coefficients (metric tons CH4/melric ton of fuel) 1800 1860 1890 1920 1950 ... ... 2: A83) on the impact of world development on the atmosphere. Tile listed coefficients are expressed as tons of CH4/ton of fuel. Dashes reflect missi...

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Asparagus virus 1

Encyclopedia Article

...chemical and Physical Properties There are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient... ...hysical Properties There are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient is 146 S20w. ...

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Investigation of the Martian environment by infrared spectroscopy on Mariner 9

By: Conrath, H. R. ; Conrath, B. J. ; Novis, W. ; Kunde, V. G. ; Lowman, P. ; Maguire, W. ; Pearl, J. C. ; Pirraglia, J. ; Prabhakara, C. ; Schlachman, B., et al

...e T was chosen as 4 days, corresponding approximately to an eddy transport coefficient of 2 x 10 7 cm 2 /sec. With these assumptions, the greatly simp... ...s, this issue. Krumbein, W. S., and Sloss, L. L. (1951). "Stratigraphy and Sedimentation", W. H. Freeman Co., San Francisco, p. 71. Leighton, R. B., a...

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Particle aggregation

Encyclopedia Article

...ce they may settle to the bottom of the container, which is referred to as sedimentation). Alternatively, a colloidal gel may form in concentrated sus... ...ons, they may also be coupled to droplet coalescence, and not only lead to sedimentation but also to creaming. In aerosols, airborne particles may equ... ...dimers. The rate of this reaction is characterized by the aggregation rate coefficient k. Since doublet formation is a second order rate process, the ... ... Since doublet formation is a second order rate process, the units of this coefficients are m3s−1 since particle concentrations are expressed as parti... ...ensionless stability ratio W = kfast/k where kfast is the aggregation rate coefficient in the fast regime, and k the coefficient at the conditions of ... ...ss. Each of these reactions is characterized by the respective aggregation coefficients kAA, kBB, and kAB. For example, when particles A and B bear po... ...regation of the suspended solids. The aggregates are normally separated by sedimentation, leading to sewage sludge. Commonly used flocculating agents ...

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Large impacts in the Baltic shield with special attention to the Uppland structure

By: Henkel, H. ; Lilljequist, R

...ried meteorite crater that formed contemporaneously with marine or fluvial sedimentation during Silurian or Devonian time. An examination of drill cor...

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Cauliflower mosaic virus

Encyclopedia Article

...mals. The promoter was named CaMV 35S promoter ("35S promoter") because the coefficient of sedimentation of the viral transcript, whose expression... ...moter was named CaMV 35S promoter ("35S promoter") because the coefficient of sedimentation of the viral transcript, whose expression is naturally d...

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Stormwater and the Construction Industry

By: Environmental Protection Agency

... Plan is updated as necessary to reflect changes on the site. Erosion and sedimentation control practices are only as good as their installation and... ...sure the site area n Determine the drainage areas n Calculate the runoff coefficient The next step is assessing the impact the project will have on ... ...off amounts and velocities. For more information on calculatng the runoff coefficient, go to www.epa.gov/npdes/pubs/chap02_conguide.pdf, page 11. 3. ... ... exposed soils and stabilization with vegetation, mulch, and geotextiles. Sedimentation control measures designed to remove sediment from stormwate... ...ences, and sediment traps. No single BMP will meet all of the erosion and sedimentation control needs of a construction site. A combination of BMPs ... ...y trash or debris! • Dispose of hazardous materials properly. Erosion and sedimentation control practices are only as good as their installation a... ...MPs), construction site operators are the key defense against erosion and sedimentation. As stormwater flows over a construction site, it picks up po...

...lakes, wetlands, and oceans. Through the use of best management practices (BMPs), construction site operators are the key defense against erosion and sedimentation. As stormwater flows over a construction site, it picks up pollutants like sediment, debris, and chemicals. High volumes of stormwater can also cause stream bank erosion, and destroy downstream aquatic habitat. ...

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Deposition (geology)

Encyclopedia Article

...gravitational acceleration (m/s2), Cd is the drag coefficient, and ws is the particle's settling vel... ...locity (in m/s). In order to calculate the drag coefficient, the grain's Reynolds number needs to be discovered, which is b... ...ed harbour breezes create surface currents and chop influencing the marine sedimentation processess.[6] Deposits of loess from subsequent glacial peri...

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Fouling

Encyclopedia Article

...heat exchangers and may cause deterioration of the relevant heat transfer coefficient . They may also create flow blockages, redistribute the flow in... ...\frac {dm} {dt} = {k_a} C_i and then the transport and attachment kinetic coefficients are combined as two processes occurring is series: : k_d = \le... ...Particles larger than those of colloidal dimensions may also foul e.g., by sedimentation ("sedimentation fouling") or straining in small-size openings... ...droxides ( magnetite, hematite, lepidocrocite, maghemite, goethite ); Sedimentation fouling by silt and other relatively coarse suspended matt... ...uling (termed " fouling resistance "), or by development of heat transfer coefficient (W/m²K) with time. If under-deposit or crevice corrosion is... ...esis, diffusiophoresis, Stefan flow (in condensation and evaporation), sedimentation, Magnus force (acting on rotating particles), thermoelectr...

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Poisson's ratio

Encyclopedia Article

...n's effect while under stress. In a geological timescale, excessive erosion or sedimentation of Earth's crust can either create or remove large vertic... ...mpulse excitation technique Orthotropic material Shear modulus Young's modulus Coefficient of thermal expansion Meaning of Poisson's ratio Negative...

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Depth filter

Encyclopedia Article

...ever are resistant to the high flows of the incoming fluid. The uniformity coefficient is a measure of the uniformity of the material used within the ... ..., means the closer the particles are in size. An ideal system would have a coefficient between 1.3 and 1.5 and must not exceed 1.7. Anything less than... ...osmosis Sedimentation ... ...ever are resistant to the high flows of the incoming fluid. The uniformity coefficient is a measure of the uniformity of the material used within the ... ..., means the closer the particles are in size. An ideal system would have a coefficient between 1.3 and 1.5 and must not exceed 1.7. Anything less than... ...osmosis Sedimentation ...

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Chromatography

Encyclopedia Article

...mobile and stationary phases. Subtle differences in a compound's partition coefficient result in differential retention on the stationary phase and th... ... Chromatography is based on the concept of partition coefficient. Any solute partitions between two immiscible solvents. When we... ... components of the sample separate in the column due to their partitioning coefficient between the two immiscible liquid phases used. There are many t... ...osmosis Sedimentation ...

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Tailings

Encyclopedia Article

...ngs where the waterborne refuse material is pumped into a pond to allow the sedimentation (meaning separation) of solid particles from the water. ... ...l in the humans’ daily lives. In other words, those methanogenesis improve the coefficient of utilization. Moreover, these methanogenesis change the s...

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Integrated urban water management in Medellín, Colombia

Encyclopedia Article

... while Medellín alone contributed 55% to the state GDP of 14.7 billion. Colombia has a median value of 57 Gini coefficient indicating moderate income ... ...acts to water resources result from agriculture practices upstream from Medellín in the basin. Impacts include sedimentation and eutrophication of the...

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Index of physics articles (S)

Encyclopedia Article

...r test) Sediment transport Sedimentation Seed crystal ... ... Stewart–Tolman effect Sticking coefficient Sticky bead argume...

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Hydrology

Encyclopedia Article

... Predicting geomorphologic changes, such as erosion or sedimentation. Assessing the impacts of natural an... ...on on Earth Nash–Sutcliffe model efficiency coefficient Socio-hydrology ...

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Nephrotic syndrome

Encyclopedia Article

...leural effusion or due to diaphragmatic compression with ascites. Erythrocyte sedimentation rate is increased due to increased fibrinogen & other pl... ...in can be used in the absence of a 24 hour urine test for total protein. This coefficient will be greater than 200–400 mg/mmol in nephrotic synd...

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Soil mechanics

Encyclopedia Article

...s law provides the theoretical basis to calculate the relationship between sedimentation velocity and particle size. ASTM provides the detailed proced... ...are tested with an oedometer test to determine their compression index and coefficient of consolidation. When stress is removed fr... ...ity. This is the stress exerted on retaining walls. A lateral earth stress coefficient, K, is defined as the ratio of lateral (horizontal) effective s... ...tical effective stress for cohesionless soils (K=σ'h/σ'v). There are three coefficients: at-rest, active, and passive. At-rest stress is the lateral s...

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Proteasome

Encyclopedia Article

... The proteasome subcomponents are often referred to by their Svedberg sedimentation coefficient (denoted S). The proteasome most exclusively used... ...easome subcomponents are often referred to by their Svedberg sedimentation coefficient (denoted S). The proteasome most exclusively used in mammals is...

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Glossary of environmental science

Encyclopedia Article

...s protect land for wildlife into the future. crop coefficient (Kc) – (water management) a variable used to calculate the evap... ...ell of hydrogen sulphide. septic tank - a type of sedimentation tank in which the sludge is retained long enough for the orga... ...s protect land for wildlife into the future. crop coefficient (Kc) – (water management) a variable used to calculate the evap... ...ell of hydrogen sulphide. septic tank - a type of sedimentation tank in which the sludge is retained long enough for the orga...

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