These tubes may differ both in the choice of the electron optical system and in the design of the coupling members.

These qualities make UV curing adhesives essential to the manufacturing of items in many industrial markets such as electronics, telecommunications, medical, aerospace, glass, and optical.

These authors proved, however, that no optical system can justify these suppositions, since they are contradictory to the fundamental laws of reflexion and refraction.

These different factors affect the diamond's hardness, smoothness, conductivity, optical properties and more.

These lenses are analogous to but different from the glass lenses of an optical microscope that form a magnified image by focusing light on or through the specimen.

These characteristics make Hall effect devices better for position sensing than alternative means such as optical and electromechanical sensing.

These microscopes have the same resolution limit as wide field optical and electron microscopes.

These three-wave mixing processes correspond to the nonlinear effects known as second harmonic generation, sum frequency generation, difference frequency generation and optical rectification respectively.

These laws were discovered empirically as far back as 984 AD and have been used in the design of optical components and instruments from then until the present day.

These pearls, which are often pink in color, are a by-product of the conch fishing industry, and the best of them display a shimmering optical effect related to chatoyance known as ' flame structure '.

These photons are fed back into the laser medium, usually by an optical resonator.

These issues are more difficult for optical approaches as the timescales are orders of magnitude shorter and an often-cited approach to overcoming them is optical pulse shaping.

These include photon scanning microscopy ( PSTM ), which uses an optical tip to tunnel photons ; scanning tunneling potentiometry ( STP ), which measures electric potential across a surface ; spin polarized scanning tunneling microscopy ( SPSTM ), which uses a ferromagnetic tip to tunnel spin-polarized electrons into a magnetic sample, and atomic force microscopy ( AFM ), in which the force caused by interaction between the tip and sample is measured.

These include meso compounds, cis-trans ( E-Z ) isomers, and non-enantiomeric optical isomers.

These cables are known as optical ground wire ( OPGW ).

These pattern sequences are used to measure jitter and eye mask of TX-Data in electrical and optical data links.

These connections are made either with twisted pair wire, normally referred to as jumper wire, or with optical fiber cables, normally referred to as jumper cables.

These will contain within them an optical switch, which will, in some cases, be a photonic switch.

These spatially varying optical parameters do not correspond to any natural material, but may be implemented using metamaterials.

These structures may be the edge of a lens or mirror, or a ring or other fixture that holds an optical element in place, or may be a special element such as a diaphragm placed in the optical path to limit the light admitted by the system.

These hybridized glasses have a very low level of optical dispersion ; only two compiled lenses made of these substances can yield a high level of correction.

These kinds of crystals have one or two optical axes.

These probes will seek their complement among the base pairs of an individual's genome.

These birds are generally solitary or found in pairs early in the year, but family groups are common in the late summer and winter roosts may have two dozen or more birds in a single covey.

These simple ciphers and examples are easy to crack, even without plaintext-ciphertext pairs.

These voids are adjacent to the base pairs and may provide a binding site.

These evidently weaker axiom pairs are trivial consequences of A3 and A4.

These insights led Watson to deduce the true biological relationships of the A: T and C: G pairs.

These pairs combine to create the familiar 16D Dirac spinor matrices of SO ( 10 ).

These kits consist of pairs of needles with usually nylon cables or cords.

These pairs are called doublet are often close semantically.

These were used extensively in the copper mines at Rio Tinto in Spain, where one sequence comprised 16 such wheels arranged in pairs, and lifting water about.

These base pairs have a higher thermal stability ( melting point, see also DNA-DNA hybridization ) than adenine-thymine, a property that might convey, among organisms living in high-temperature environments, a selective advantage on variants enriched in GC content.

These decay events obey the various conservation laws, and as a result, pairs of particles can be generated so that they are in some specific quantum states.

These have two pairs of terminals.

These tacos are typically served in pairs, and also include salsa, onion and cilantro with occasional use of guacamole.

These allow the storage of a number of name / value pairs attached to a file.

These tetrahedra sometimes occur as isolated SiO < sub > 4 </ sub >< sup > 4 -</ sup > centres, but most commonly, the tetrahedra are joined together in various ways, such as pairs ( Si < sub > 2 </ sub > O < sub > 7 </ sub >< sup > 6 -</ sup >) and rings ( Si < sub > 6 </ sub > O < sub > 18 </ sub >< sup > 12 -</ sup >).

These are pairs of parallel channels cut into the surface of the rock, and extending for considerable distances, often in an exactly straight line.

These cables contain fifty or more twisted pairs.

These obscurely segmented organisms have tiny eyes, antennae, multiple pairs of legs and slime glands.

These electron-hole pairs can only move along the surface.

These include some that do not superconduct at high temperatures, such as the strontium ruthenate oxide compounds, but that, like the high-temperature superconductors, are unconventional in other ways ( for example, the origin of the attractive force leading to the formation of Cooper pairs may be different from the one postulated in BCS theory ).

These judgments find themselves if two pairs of two dual operators, and each operator is the negation of another, relationships that Aristotle summarised with his square of oppositions.

These cocci are facultatively intracellular and typically appear in pairs ( diplococci ), in the shape of coffee beans.

These colonies are composed of clans of two or three pairs, their helpers, and offspring.