Tetragon

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Related to tetragonal: tetragonal lattice

Tetragon

(religion, spiritualism, and occult)

Tetragon is an alternate, though rarely used, term for square, an aspect of 90°.

References in periodicals archive ?
[USPRwire, Thu Aug 08 2019] Zeolites are micro porous crystalline solid structures made of aluminum, silicon and oxygen that form a tetragonal framework with cavities wherein cations such as water, sulfur and other small molecules may reside.
[ClickPress, Thu Aug 08 2019] Zeolites are micro porous crystalline solid structures made of aluminum, silicon and oxygen that form a tetragonal framework with cavities wherein cations such as water, sulfur and other small molecules may reside.
A quantum mechanical study showed that the presence of Er atoms in the PT structure favors a transition from tetragonal to cubic that reduces the tetragonality (c/a) generated by a small disturbance in the energy levels of the atomic orbitals within the structure [1, 17].
The egg-shaped was observed in 20.67 % subjects (males 12% and females 8.67 %), heptagonal shape in 18.67 % (males 11.33 % and females 7.33 %), hexagonal shape in 16 % subjects (males 9.33 % and females 6.67 %), tetragonal shape in 12 % subjects (males 8.67 % and females 3.33 %), round shape in 9.33 % (males 7.33 % and 2 % females), irregular shape 8.67 % subjects (males 4 % and females 4.67 %) and oval shape in 1.33 % subjects (0.67 % in both males and females).
Following calcination at 450 AoC, the SZWA catalyst was mainly monoclinic phase, whereas the catalyst calcined at 550 AoC predominantly contained the tetragonal phase.
(2006) showed that this perovskite had a tetragonal structure with I4/m space group and changed to a cubic symmetry above 550 [degrees]C (space group Fm-3m).
The novel Al-ZrHf[O.sub.2] with a tetragonal phase-based high dielectric constant (~47), deposited by ALD method, allowed a reliable switching effect as well as low operation voltage (<[+ or -]3 V) while there was no switching effect on [Al.sub.2][O.sub.3]-based CNT FET device as control device.
where [I.sub.m] (111) and [I.sub.m] (111) are the monoclinic peak intensities at 2[theta] = 28.175[degrees] and 31.468[degrees], respectively, and [I.sub.t] (101) is the tetragonal peak intensity at 2[theta] = 29.807[degrees] [23].
Pure tetragonal CIS powder was synthesized during the reaction at 10 hours; when time was increased to 20 hours a second phase tetragonal CuGaSe was observed.
Caption: Figure 4: High power view showing sickled and tetragonal erythrocytes.
The compounds LiFeAs and NaFeAs have a structure of tetragonal symmetry (P4/nmm), and a-PbO-type layers of edge-sharing Fe[As.sub.4/4] tetrahedra interspersed with Li and Na atoms at interstitial sites of the As layer, which is shown in Figure 1.
Because of the body-centered tetragonal lattice of S-Sn unit cell, the mechanical properties of the one-grain Sn microbumps are remarkably anisotropic, which are proved by the difference of the elastic modulus and the stiffness in the different orientations.