What's the difference between diffraction and interference?

Diffraction


Definition:

  • (n.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by the action of a grating of fine lines or bars.

Example Sentences:

  • (1) Thin films (OD approximately 0.7) of glucose-embedded membranes, prepared as a control, showed virtually 100% conversion to the M state, and stacks of such thin film specimens gave very similar x-ray diffraction patterns in the bR568 and the M412 state in most experiments.
  • (2) The electron spectroscopic diffraction (ESD) mode of operation of an energy-filtering electron microscope offers the possibility of being able to avoid the background from inelastic scattering in selected-area electron diffraction patterns.
  • (3) The calculation, based on analytical expression derived by Cowley, has been shown previously to give an almost quantitative description of kinematical diffraction from linear chain systems.
  • (4) X-ray diffraction spectrum of 1:8 coprecipitate (COPPT) showed no crystalline structure of AD.
  • (5) A laser diffraction technique has been developed for registering small changes in sarcomere length.
  • (6) The crystals diffract to at least 2.2 A Bragg spacing and are stable to x-rays.
  • (7) The crystals grown at 5 degrees C did not diffract X-rays, while those grown at 18 degrees C and 37 degrees C did.
  • (8) Optical diffraction measurements on electron micrographs of the bend demonstrate that the axostyle tubules slide over one another and that the tubules on the inside of a bend usually contract, sometimes by as much as 25%.
  • (9) In contrast, the number of substructural lines within the diffraction maxima is large even for microscopically homogeneous fibers.
  • (10) Each sarcomere position is stored in a three-dimensional (3-D) matrix array from which Fraunhofer light diffraction patterns have been calculated using numerical methods based on Fourier transforms.
  • (11) X-ray diffraction analysis of the crystals showed a diffraction pattern characteristic of struvite (ammonium magnesium phosphate).
  • (12) Crystallinity of the hydroxyapatites, measured by X-ray diffraction peak broadening as full width at the half-maximum value (FWHM), increased with the synthesis temperature, although HAP500 showed a decrease.
  • (13) A systemic formalism is developed that shows how the results for absolute specific volumes of multilamellar lipid dispersions may be combined with results from diffraction studies to obtain quantitative characterizations of the average structure of fully hydrated lipid bilayers.
  • (14) Diffraction rings below Tc indicate the existence of solid lipid domains.
  • (15) One lattice was trigonal, as in purple membrane, and showed a high-resolution electron diffraction pattern from glucose-sustained patches.
  • (16) The crystal structures of Forms A, B, and C were further analyzed using the X-ray diffraction method, and the results are discussed in comparison with the thermal behavior of the crystalline forms.
  • (17) The structure of native bovine pancreatic ribonuclease A, without the inhibitory sulfate anion normally bound at the active site, has been determined by X-ray diffraction at 1.53-A resolution.
  • (18) All but two patients noted monocular diplopia; in three patients this was so intolerable that the diffractive lens was explanted and exchanged for a monofocal lens, following which the visual acuity improved by an average of two Snellen lines and complaints of monocular diplopia disappeared.
  • (19) The crystalline-like structure of horizontally sectioned Langerhans cell granules has been studied by optical diffraction.
  • (20) We have also obtained diffraction patterns attributable to the protein envelopes of the corneocytes.

Interference


Definition:

  • (n.) The act or state of interfering; as, the stoppage of a machine by the interference of some of its parts; a meddlesome interference in the business of others.
  • (n.) The mutual influence, under certain conditions, of two streams of light, or series of pulsations of sound, or, generally, two waves or vibrations of any kind, producing certain characteristic phenomena, as colored fringes, dark bands, or darkness, in the case of light, silence or increased intensity in sounds; neutralization or superposition of waves generally.
  • (n.) The act or state of interfering, or of claiming a right to the same invention.

Example Sentences:

  • (1) Four cytotoxic antibiotics, bikaverin, duclauxine, PSX-1 and vermiculine, were examined with respect to their interference with glycolysis and respiration and their possible ionophoric or cytolytic activity.
  • (2) A similar interference colour appeared after incubating sections of rat skin with chymase.
  • (3) With this system, a brain region loaded with fura-2 was illuminated by a rotating disc bearing three different interference filters of 340, 360 and 380 nm at a rate of 600 rpm.
  • (4) These results indicate that both racemic and L-baclofen inhibit trigeminal transmission in man, probably because they interfere with excitatory transmission through the interneurons of the lateral reticular formation.
  • (5) An operant delayed-matching task was used to assess the role of proactive interference (PI) effects on short-term memory capacity of rats.
  • (6) The last time Vince Cable had a seat in the business department, it was during a high noon of industrial action and state interference in the economy.
  • (7) Electromagnetic interference presented as inhibition and resetting of the demand circuitry of a ventricular-inhibited temporary external pacemaker in a 70-year-old man undergoing surgical implantation of a permanent bipolar pacemaker generator and lead.
  • (8) We tested the hypothesis that furosemide interferes with energy generation in the cochlea, and determined its effect on CO2 formation from glucose and glyceroaldehyde-3-phosphate dehydrogenase (GAPDH) activity by examining biochemical and histochemical changes in the cochlea, the kidney, and the liver.
  • (9) Agents that lower total plasma or LDL cholesterol in hypercholesterolaemic patients by interfering with cholesterol reabsorption from the gut (cholestyramine, cholestipol) or reduction of hepatic VLDL release (fibrates) do not appear to interfere with platelet hyperreactivity and do not change platelet-derived thromboxane formation.
  • (10) Blockade of beta-adrenoceptors interferes with haemodynamic and metabolic adaptations and ion balance during dynamic exercise.
  • (11) For each theory, a constraint on preformance is proposed based on interference between the "analytic" and "synthetic" pitch perception modes.
  • (12) It is important for this commission to get to the truth of what happened and it's able to carry on without interference and disruption.
  • (13) Treatment of bacterial cells with inhibitors of gyrase at high concentration leads to relaxation of DNA supercoils, presumably through interference with the supercoiling activity of gyrase.
  • (14) Although the general guiding principle of pharmacotherapy for anxiety disorders--the lowest effective dose for the shortest possible time--remains, this rule should not interfere with the judicious use of medications as long as the benefits justify it.
  • (15) 3H-phorbol ester binding experiments reveal that inhibition by BP may be due to its interference with the phorbol ester binding site and consequently diacylglycerol binding.
  • (16) Both types of interference can be eliminated by selectively precipitating protein with deoxycholate and trichloroacetic acid (A. Bensadoun and D. Weinstein (1976) Anal.
  • (17) We conclude that cigarette smoking does interfere with the treatment of hypertension in general, and especially with reduction of blood pressure by propranolol in black patients.
  • (18) Glutathion and ascorbic acid interfere with the test strip method but this error is neglectable because of physiological low concentrations of these substances.
  • (19) I called it following the Star Trek Non-Interference Directive.
  • (20) The absence of uniform definitions prevents meaningful intersystem comparisons, prohibits explorations of hypotheses about effective interventions, and interferes with the efforts of quality assurance.