(Askeri) KAPSÜL; FÜNYE: Bir infilak maddesini veya ateşleme zincirini ateşlemek için kullanılan tertibat. Bu tertibat; sürme, çarpma, basınç veya elektrikle faaliyete geçirilebilir. İçinde, az miktarda kapsül eczası bulunur
(Askeri) KAPSÜL; FÜNYE: Bir infilak maddesini veya ateşleme zincirini ateşlemek için kullanılan tertibat. Bu tertibat; sürme, çarpma, basınç veya elektrikle faaliyete geçirilebilir. İçinde, az miktarda kapsül eczası bulunur
short nucleotide sequence with a reactive end that can bind and initiate DNA synthesis along a template
Primer/sealers work to eliminate stains (including stains from water and fire damage), cover wood imperfections, hide wallpaper designs and serve as a foundation coat on metals over which a finish coat is applied They also seal the surface evenly so a topcoat will have uniform gloss
Coatings that are designed for application to a surface to provide a firm bond between the substrate and subsequent coatings
A small charge that burns furiously when given sufficient electrical current (Explosive primer) or when struck with force (percussion caps) that ignites the main combustable substances in explosives or ammunition
A device used to provide a flame for the purpose of setting fire to a propellant charge Also called an "igniter " Primers are divided into two types, depending upon the type of ammunition used by the gun: 1) Case and 2) Lock Case primers, as their name implies, are used for guns firing case ammunition Lock primers are used for bag guns, and are inserted by hand into the firing lock of the gun Primers are also divided into three classes, depending upon the method of firing: 1) Percussion, 2) Electric and 3) Combination Percussion primers are fired by the mechanical impact of a firing pin Electric primers are fired by passing a current through a resistance element surrounded by an initiating mixture Combination primers may be fired by either of these methods, which allows for a mechanical backup if the electric supply system of the gun fails
A small segment of DNA which binds to a complementary strand of DNA Primers are necessary to start the DNA polymerase enzyme and therefore are necessary in PCR
The first layer of a coating system Applied to an unpainted surface Its' role is to protect the substrate and to prepare it for the application of a surfacer or topcoat It must therefore have above all, excellent adhesion to the substrate and to the coating which will follow
First coat of paint applied to a surface Such paints are designed to provide adhesion to new surfaces or are formulated to meet the special requirements of the surfaces Most textile paints won't attach to a primer
An essential undercoat layer of paint Primer kills stains, retards moisture absorption and provides a good surface for a top coat of paint to adhere to Primer comes in water- and oil-based formulas It is imperative that new or bare wood, and metal, be primed
The first complete coat of paint applied in a painting system Many primers are designed to provide adequate adhesion between the surface and subsequent topcoats Most primers contain some pigment, some lend uniformity to the topcoat, some inhibit corrosion of the substrate, and some stop the discoloration of the topcoat
A short sequence of DNA that is paired with one strand of the template DNA in the Polymerase Chain Reaction (PCR) technique In PCR testing, the primer is selected to be complementary to the target sequence of DNA Without a DNA primer sequence a new DNA chain cannot be constructed as the polymerase requires a binding site on the DNA molecule
A kind of type, of which there are two species; one, called long primer, intermediate in size between bourgeois and small pica [see Long primer]; the other, called great primer, larger than pica
Acrylic paint-like product applied to the wall prior to the installation of wallpaper, specially designed to promote slip, adhesion and stripability Used in place of size
Or friction primer; a small brass tube filled with powder, inserted in the vent and used to ignite the main charge For a detailed description, see the Ammunition page