definition
A thin outer layer.
example
They painted on a coating to protect it from the weather.
definition
Cloth for making coats.
definition
A telling-off; a reprimand.
definition
A thin outer layer.
example
They painted on a coating to protect it from the weather.
definition
Cloth for making coats.
definition
A telling-off; a reprimand.
The central conductor is covered with several continuous coatings of guttapercha, the total weight of which varies between 70 and 650 lb to the mile.
The famous cameo glass was formed by covering a mass of molten glass with one or more coatings of a differently coloured glass.
For if C l and C2 are the capacities and Q i and Q2 are the charges after contact, then Qi/CI and Q2/C2 are the potential differences of the coatings and must be equal.
If a charged condenser is suddenly discharged and then insulated, the reappearance of a potential difference between its coatings is analogous to the reappearance of a torque In the case of a glass fibre which has been twisted, released suddenly, and then gripped again at the ends.
The study of electricity he took up in 1746 when he first saw a Leyden jar, in the manipulation of which he became expert and which he improved by the use of granulated lead in the place of water for the interior armatures; he recognized that condensation is due to the dielectric and not to the metal coatings.
The blister if unbroken was heated, pricked, and then rubbed level with a burnisher; if, as sometimes happened, the silver had flaked away it was replaced by coatings of pure leaf silver rubbed in with a burnisher.
This transfer will take place because the inner coatings of the Leyden jars have greater capacity with respect to the earth than the balls.
If two Leyden jars L, L were hung upon the conductors which supported the combs, with their outer coatings put in connexion with one another by M, a series of strong spark discharges passed between the discharge balls.
These combs on opposite sides are connected respectively to the inner coatings of two Leyden jars whose outer coatings are in connexion with one another.
Hall proposed to overcome this difficulty by coating the plate thickly with copper on both sides, and deducing the difference of temperature between the two surfaces of junction of the iron and the copper from the thermo-electric force observed by means of a number of fine copper wires attached to the copper coatings at different points of the disk.
Various artificial protective coatings are applied to the plates of steel ships.
Dr John Bevis of London suggested, in 1746, the use of sheet lead coatings within and without the jar, and subsequently the use of tin foil or silver leaf made closely adherent to the glass.
For charging in parallel a number of jars are collected in a box, and all the outside coatings are connected together metallically and all the inside coatings brought to one common terminal.
To Franklin also we owe the important knowledge that the electric charge resides really in the glass and not in the metal coatings, and that when a condenser has been charged the metallic coatings can be exchanged for fresh ones and yet the electric charge of the condenser remains.
The jar can be charged so that a certain potential difference V, reckoned in volts, exists between the two coatings.
The energy stored up in the jar in joules is expressed by the value of CV 2, where C is the capacity measured in farads and V the potential difference of the coatings in volts.
The tubes have walls thicker at the ends than in the middle, as the tendency to puncture the glass is greatest at the edges of the coatings.
Owing to the variation in the value of the dielectric constant of glass with the temperature and with the frequency of the applied electromotive force, and also owing to electric glow discharge from the edges of the tin foil coatings, the capacity of an ordinary Leyden jar is not an absolutely fixed quantity, but its numerical value varies somewhat with the method by which it is measured, and with the other circumstances above mentioned.
The positive and negative electrifications of the two coatings of the Leyden jar were therefore to be regarded as the result of a transformation of something called electricity from one coating to the other, by which process a certain measurable quantity became so much less on one side by the same amount by which it became more on the other.
The spark may be obtained from the secondary of an induction coil, whose terminals are in connexion with the coatings of a Leyden jar.
But in reservoir work such coatings are not to be trusted, and a single horizontal crack might admit sufficient water to cause an uplift.
At present I am investigating techniques of quantification of biofilms on marine antifouling coatings and relating these to antifouling release agents.
Composite coatings of electroless nickel containing silicon carbide exhibits superior abrasive wear resistance to hard chromium plate in some applications.
Its research will also examine ink adhesion; food contact; and the affects of non-stick coatings.
With the correct polymer design, stable liquid polyester coatings can be produced in a high-water content volatile phase.
I am using the modification of the Eshelby approach to model for the elastic constants of porous coatings.
Research focussed on methods of generating and stabilizing emulsion droplets using cross-linked polymer coatings derivatised with various ligands.
They can also be used to deposit coatings and do fairly fearsome things to surfaces.
Meade Optical Coatings Aluminum Coatings with magnesium fluoride over coat provides bright images full of detail.
Please finish the door with coatings specifically formulated for the use with external doors.
These materials can be used, for example, as coatings on dental and orthopedic implants.
Cadmium coatings also have good lubricity, easy solderability and other properties, which are essential for reliable service life in many engineering components.
Nanoindentation is a fast and convenient way to quantitatively characterize the complex microstructures of plasma sprayed coatings.
It is used mainly in thermoplastic polyurethanes, resins for surface coatings, adhesives and synthetic leather and fabrics.
Pre-finished hardwood floors with 6 coatings of UV cured acrylic polyurethane.
The coatings also meet or exceed military standards for moderate abrasion resistance.
Coatings made by direct esterification of wood rosins are also temporarily acceptable at an application rate of 50 mg/kg.
We work with a wide variety of flooring materials from epoxy resin coatings to high temperature steam cleanable polyurethane screeds.
Materials grown and studied include superconductors, high index dielectrics, magnetic films, and metallic coatings.
Coatings that keep wood buildings from burning.
Frictionless coatings that never wear out in machines that last for centuries.
Nowadays they are also used widely within the food and coatings industries to simulate processes such as pumping and spraying.
At AWE the application of sol gels for the manufacture of thin film coatings for the optical components of the Helen laser is described.
However, at elevated temperatures, long term exposures eventually result in the spallation of the protective coatings.
Learning Pathways - Certificate in Coatings Technology Flexible training in surface coatings technology Learning Pathways - finding the right modules for you.
The new research published today supports the proposal that work with textured coatings will no longer require a license.
Organic solvent based paints are being replaced by environmentally acceptable alternatives, most importantly, waterborne coatings.
It can also be used for the formulation of high-gloss topcoats with good chemical and weathering resistance, or even effect coatings.
Nonstick cookware sets have manmade coatings that keep foods from sticking to the pan.
A variety of finishes and colors from standard pebbled, to more expensive fingerprint-resistant stainless with clear coatings.
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