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Z-line may refer to: J/Z (New York City Subway service) Z-line (IRC), a type of Internet Relay Chat access ban; Gastroesophageal junction, that joins the oesophagus to the stomach; Z-line, a border that separates and links sarcomeres within a skeletal muscle
A sarcomere is defined as the segment between two neighbouring Z-lines (or Z-discs). In electron micrographs of cross-striated muscle, the Z-line (from the German "zwischen" meaning between) appears in between the I-bands as a dark line that anchors the actin myofilaments. Surrounding the Z-line is the region of the I-band (for isotropic). I ...
atomic number (Z) The number of protons found in the nucleus of an atom. It is most often used to classify elements within the periodic table. atomic orbital atomic packing factor atomic physics A branch of physics that studies atoms as isolated systems of electrons and an atomic nucleus. Compare nuclear physics. atomic structure atomic weight (A)
Z 0. The W ± bosons have either a positive or negative electric charge of 1 elementary charge and are each other's antiparticles. The Z 0 boson is electrically neutral and is its own antiparticle. The three particles each have a spin of 1. The W ± bosons have a magnetic moment, but the Z 0 has none.
The input impedance of an infinite line is equal to the characteristic impedance since the transmitted wave is never reflected back from the end. Equivalently: The characteristic impedance of a line is that impedance which, when terminating an arbitrary length of line at its output, produces an input impedance of equal value. This is so because ...
The facet joints (also zygapophysial joints, zygapophyseal, apophyseal, or Z-joints) are a set of synovial, plane joints between the articular processes of two adjacent vertebrae. There are two facet joints in each spinal motion segment and each facet joint is innervated by the recurrent meningeal nerves.
The axes of the original frame are denoted as x, y, z and the axes of the rotated frame as X, Y, Z.The geometrical definition (sometimes referred to as static) begins by defining the line of nodes (N) as the intersection of the planes xy and XY (it can also be defined as the common perpendicular to the axes z and Z and then written as the vector product N = z × Z).
In fusion power research, the Z-pinch (zeta pinch) is a type of plasma confinement system that uses an electric current in the plasma to generate a magnetic field that compresses it (see pinch). These systems were originally referred to simply as pinch or Bennett pinch (after Willard Harrison Bennett ), but the introduction of the θ-pinch ...