What's the difference between isotropic and nonisotropic?
Isotropic
Definition:
(a.) Having the same properties in all directions; specifically, equally elastic in all directions.
Example Sentences:
(1) The myocardium was assumed to be composed of a nonlinear viscoelastic, inhomogeneous, anisotropic (transversely isotropic) and incompressible material operating under adiabatic and isothermal conditions.
(2) Deviations from isotropic motion observed for the non-aromatic moieties are discussed.
(3) This systematic deviation in the motional parameters appears to be due to the use of a single-site isotropic model for the atomic fluctuations.
(4) A phosphate-containing spin label demonstrated strong an isotropic motion in the lipid-water system above the phase transition but not below.
(5) Ultracentrifugation for determination of isotropic concentrations of fatty acids is widely used.
(6) This exponential mixture rule is proposed for the study of the mechanical properties of isotropic dental composites.
(7) The human tension-area relation for isotropic loading could be described by an exponential function and was found to shift significantly to the left of the canine.
(8) As in the isotropic case, fundamental boundary-layer conditions are introduced containing only one transverse or normal mass or stiffness.
(9) In preparations stained by congo-rot and covered with arabic gumm amyloid deposits reveal intensive, positive bi refringement, collagen is isotrop, or shows a mild bi refringement.
(10) The changes in the integral of the extracellular action potentials (EAPs) generated by an infinite homogeneous fibre in an infinite homogeneous and isotropic volume conductor were studied at different radial distances (yo) from the fibre axis, depending on the propagation velocity (v), duration (Tin) and asymmetry of the intracellular action potential (IAP).
(11) A 630 nanometer wavelength of light was delivered through a quartz-optical fiber with either a regular flat end for focal illumination or a bulb-type end which produced an isotropic light pattern.
(12) An equation describing the isotropical dissolution of soluble nondisintegrating disks was developed.
(13) It was found that the correlation times of the protonated carbons were equal within experimental error, and this equality of correlation times of different sites of the molecule suggests strongly isotropic random motion of the molecule.
(14) The three-dimensional structure of the stalk porin has been determined to an almost isotropic resolution of 1.7 nm.
(15) They suggest that for a realistic situation translational diffusion should be about four times faster in relation to rotational diffusion than in the isotropic case.
(16) In strong contrast, the 31P-NMR spectra of the extracted lipids are characteristic for the hexagonal HII phase and an isotropic phase.
(17) The changes of T1 and T2 were treated based on the assumption of two types of molecular motions: (1) isotropic "slow" motions with times approximately greater than 10(-8) s (including the rotation of a molecule as a whole) and (2) anisotropic "fast" motions with times approximately less than 10(-10) s. Experimental data show an essential increase of the scale of intramolecular mobility for the majority of side groups upon transition of the protein from the native to the molten globule state.
(18) The photoretinoscope, which is a novel modification of an isotropic photorefractor, is also described.
(19) The isotropically shifted resonances in both the oxidized and reduced forms show a complex pH dependence due to the presence of three ionizable residues (Glu-44, His-20, and His-42).
(20) Using glass and low temperature isotropic (LTI) carbon adsorbents, i.e., a known procoagulant and a relevant biomaterial, respectively, the adsorption properties and the potential surface-induced conformational changes of high-purity native human fibrinogen (clottability greater than or equal to 92%) were studied, at 25 degrees C, by 3 independent methods.
Nonisotropic
Definition:
Example Sentences:
(1) Values of bulk moduli of fibers, calculated from the compression experiments, and preliminary measurements of Young's modulus from stretch experiments, are quantitatively consistent with the idea that skinned fibers behave as nonisotropic elastic bodies.
(2) A quantitative study of nonisotropic attenuation in SPECT imaging is presented.
(3) The method described was devised to facilitate rapid and reasonably accurate estimations of the length of a nonisotropic linear feature in a micrograph.
(4) In our approximations we have investigated the effective transmembrane pressure difference which is given both by the true pressure drop, determined by the hydrodynamic flow through a small gap between the cell tongue and the pipette wall and the interaction between the tongue and the wall, as well as by the nonisotropic part of the membrane tension.
(5) In many sections, the Purkinje cell layer was markedly nonisotropic, and the length obtained by this method varied very considerably depending on the orientation of the section relative to the test lines.
(6) It has been found that the technique can be carried out efficiently and reliably by relatively inexperienced personnel, and the results are obtained more rapidly than when alternative methods for estimating dimensions of nonisotropic features are used.
(7) The problems of nonisotropic sampling and the limited eight-bit dynamic range are discussed.