What's the difference between orthogonal and perpendicular?

Orthogonal


Definition:

  • (a.) Right-angled; rectangular; as, an orthogonal intersection of one curve with another.

Example Sentences:

  • (1) Specifically, we apply techniques of data preprocessing, orthogonality constraints, and validation of solutions in a complete TC analysis, for the first time using actual MEP data.
  • (2) In 92 percent of the patients the thoraco-abdominal aorta and its branches were well documented on 2 orthogonal projections performed in one single session.
  • (3) Orthogonal field electrophoresis of the eleven strains still carrying pBR322 sequences revealed at least seven different integrating sites for the transforming DNA.
  • (4) Similar results were obtained for either direction of motion (orthogonal to a cell's optimum orientation) and for either polarity of contrast (dark centre, light ends or the reverse).
  • (5) Orthogonal regression analysis of the GC method (y) and the CDC reference method (X) resulted in y = 0.996 X + 0.000 with a correlation coefficient of 0.999.
  • (6) Three-dimensional analysis of patient position over an 8-week course of daily radiation treatment has been performed for nine patients from digitization of anatomic points identified on orthogonal radiographs.
  • (7) Spatial and lateral R-wave amplitudes were derived from the orthogonal Frank (XYZ) lead system.
  • (8) An airjet perturbation device is attached to the wrist with a special cuff, and provides high-frequency stochastic perturbations in potentially three orthogonal directions.
  • (9) Rather than individual voxels, a new exact algorithm is presented that considers the CT data as consisting of the intersection volumes of three orthogonal sets of equally spaced, parallel planes.
  • (10) A cortical patch representing a given orientation was regularly surrounded by both neighboring and orthogonal orientations.
  • (11) Inactive dummies with the same dimensions as the radioactive sources are loaded into the capsules before obtaining the orthogonal radiographs.
  • (12) Trend analysis of the fatigue patterns revealed that a cubic orthogonal polynomial equation was sufficient to describe the profile of MVC decrement for all conditions.
  • (13) Using various self-report indices of these constructs we found that (a) defensive self-enhancement is composed of two orthogonal components: grandiosity and social desirability; (b) grandiosity and social desirability independently predict self-esteem and may represent distinct confounds in the measurement of self-esteem, (c) narcissism is positively related to grandiose self-enhancement (as opposed to social desirability), (d) narcissism is positively associated with both defensive and nondefensive self-esteem, and (e) authority, self-sufficiency, and vanity are the narcissistic elements most indicative of nondefensive self-esteem.
  • (14) Thus, the axial and orientational components are orthogonal (Wörgötter and Eysel 1989).
  • (15) In other experiments, 2 or 3 rows of tracer injections were made at different dorsoventral levels of AI, over a large frequency range (5-38 kHz); each injection row was oriented orthogonal to the IFCs and contained a different tracer.
  • (16) Our calculations also predict a different trap stability in the directions orthogonal and parallel to the polarization direction of the incident light.
  • (17) We describe a nearly orthogonal two-level design that involves use of a weighted analysis to estimate drift and very low amounts of sample-to-sample carryover simultaneously.
  • (18) The perceived cyclopean motion was examined under five different conditions, in which the cyclopean pattern was moving either up or down, the luminant dots were: (1) moving in the cyclopean direction; (2) moving opposite to the cyclopean direction; (3) moving orthogonal to the cyclopean direction, (4) stationary; or (5) dynamic (dots uncorrelated in successive frames).
  • (19) Regulatory and B-lymphocytes showed a low orthogonal light scatter signal, whereas cytotoxic lymphocytes identified with leu-7, leu-11 and leu-15 revealed a large orthogonal light scatter signal.
  • (20) The orthogonal catheter has three sets of four electrodes spaced evenly around the circumference.

Perpendicular


Definition:

  • (a.) Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth.
  • (a.) At right angles to a given line or surface; as, the line ad is perpendicular to the line bc.
  • (n.) A line at right angles to the plane of the horizon; a vertical line or direction.
  • (n.) A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.

Example Sentences:

  • (1) Our data support the hypothesis that evoked and epileptiform magnetic fields result from intradendritic currents oriented perpendicular to the cortical surface.
  • (2) Right ventricular volumes were determined in 12 patients with different levels of right and left ventricular function by magnetic resonance imaging (MRI) using an ECG gated multisection technique in planes perpendicular to the diastolic position of the interventricular septum.
  • (3) We attribute the greater strength of the step-cut repair to the additional number of epitendinous loops, which lie perpendicular to the long axis of the tendon.
  • (4) The helix axes, penetrating the hydrophobic region of the bilayers, were oriented neither parallel nor perpendicular to the membrane normal.
  • (5) We show that over a limited range of high spatial frequencies this noise takes on a striated appearance, with the striations running perpendicular to the true fringe orientation.
  • (6) The AFB1 moiety is face-stacked in the major groove with its long axis approximately perpendicular to the helix axis.
  • (7) The two molecules in the asymmetric unit form a dimer with its 2-fold axis perpendicular to and intersecting with a crystallographic 4(1) axis.
  • (8) Interestingly, the helical motif prefers to assemble parallel to the wall, whereas the beta-barrel, predominantly assembles with its principal axis perpendicular to the wall.
  • (9) The numerals were either upright, or inverted, or rotated perpendicular to the arm axis.
  • (10) Parameters measured from simulator films included: (a) the perpendicular distance from the posterior tangential field edge to the posterior part of the anterior chest wall at the center of the field (CLD); (b) the maximum perpendicular distance from the posterior tangential field edge to the posterior part of the anterior chest wall (MLD); and (c) the length of lung (L) as measured at the posterior tangential field edge on the simulator film.
  • (11) Our results suggest that the first stage is much more selective for orientation than are lateral geniculate nucleus cells, but that the first-stage orientation bandwidth is rather wide with some interaction occurring between perpendicular orientations.
  • (12) In slices cut parallel to the pyramidal neurons (perpendicular to the brain surface) one can study chemosensitivity of the various parts of the dendritic tree and the soma.
  • (13) The bands encircle the muscle fiber perpendicular to the long axis of the fiber and they matched the sites of attachment of the sarcomeres to the plasma membrane.
  • (14) Thin section analysis of capped cells revealed an abundance of microtubules immediately beneath the cap which were arranged approximately perpendicular to the plane of the membrane.
  • (15) This procedure allowed both light and electron microscopic examination of serial-step sections of individual cells cut in a plane perpendicular to the monolayer.
  • (16) If a segment of a line differs in luminance or color from the rest of the line, three illusory phenomena may be perceived: a reduction in contrast of the line segment relative to the background, subjective contours running perpendicularly to the ends of the line segment, and spread of color or brightness surrounding the line segment.
  • (17) Typically they lie perpendicular to the cell membrane of the pinealocyte polar process and in close proximity to a polar process of a neighboring cell.
  • (18) The results of the scattering experiments were almost independent of whether the NaDNA fibers were oriented parallel or perpendicular to the momentum transfer.
  • (19) Instruments should be rotated perpendicular to the margin from gold to enamel.
  • (20) The method uses overlapping of Pi1, 3 and 4 in perfect centering of the lens in the axis of the eye (it is assessed by drawing a perpendicular line on the centre of the cornea) and marked dislocation of Pi3 in the direction of decentration of the planoconvex lens with the convexity facing the cornea.