What's the difference between convection and convergence?

Convection


Definition:

  • (n.) The act or process of conveying or transmitting.
  • (n.) A process of transfer or transmission, as of heat or electricity, by means of currents in liquids or gases, resulting from changes of temperature and other causes.

Example Sentences:

  • (1) Two sets of equations have been proposed to estimate the convective or sensible (WCV) and the evaporative or insensible (WEV) respiratory heat exchanges.
  • (2) These convective streaming motions combine with molecular diffusion to produce augmented diffusion which transports O2 and CO2 between the trachea and the peripheral alveoli.
  • (3) The results indicate that after the fifth breath the increase in Sn during a MBNW is diffusion independent and may constitute a sensitive index of convection-dependent inhomogeneity (CDI).
  • (4) Hemodiafiltration (HDF) is a new dialysis treatment that combines convective and diffusive forces.
  • (5) We must accept a non-convective triggering of nystagmus in extraterrestrial space.
  • (6) The findings suggest that patients with pseudotumour cerebri have a convective transependymal flow of water causing an interstitial brain oedema and in addition an intracellular brain water accumulation.
  • (7) The recovery of fluorescence due to diffusion and convection within the medium was monitored and analyzed to yield values of the diffusion coefficient and the fluid velocity.
  • (8) The O2 transfer mechanisms in this model include diffusion and reaction within the RBC and diffusion and convection in the medium surrounding the RBC.
  • (9) The "kinetic" comparison of PFD and HDF to HBD, using equal quantities of dialysate, showed no significant change in the mention of uremic toxins of small molecular weight and a more efficient capacity to extract beta 2M by the diffusive-convective methods.
  • (10) The airway deadspace is the volume of the airway in which gas moves chiefly by convection.
  • (11) The 1st breeding phase coincides with the South-West monsoons and the 2nd with the convectional rains in the month of March.
  • (12) Calculated values of residual compressive stress for tempered specimens were considerably higher than those for specimens that were slowly cooled and those that were cooled by free convection.
  • (13) Because maximum expiratory flow-volume rates in normal subjects are dependent on gas density, the resistance between alveoli and the point at which dynamic compression begins (R(us)) is mostly due to convective acceleration and turbulence.
  • (14) In any situation where heat production as a result of physical exercise exceeds heat elimination from the body by radiation and convection, the body will depend on sweat secretion and evaporation for its thermoregulation.
  • (15) Due to the energy input and the associated thermal convection a separation of the three differently charged cell types in distinct peaks was not possible under 1 g-conditions as shown by reference experiments on the ground before launch.
  • (16) These mechanisms include: convective graviosmosis and related effects, gravidiffusional graviosmosis, and osmotic transport aided by gravitational force in multi-membrane systems.
  • (17) Both theoretical and experimental evidence indicates that only the first of these mechanisms could result in the steady-state caloric response that is observed in the absence of convection (e.g., in spaceflight and after canal plugging) and that contributes to the prone-supine asymmetry seen in caloric testing.
  • (18) The dead spaces for hydrogen and sulfur hexafluoride are predicted from the solution of a partial differential equation, applied to Weibel's morphometric data of the lung, and including longitudinal convection and diffusion coupled with instantaneous radial diffusion.
  • (19) It is concluded that in the conditions of the experiments convective mixing by the cardiac action played an insignificant role in promoting intrapulmonary mixing and transport.
  • (20) the circulation of blood through a cuprophane dialyzer with the dialysate compartment closed to avoid diffusion and convective transport of fluid and solutes.

Convergence


Definition:

  • (n.) Alt. of Convergency

Example Sentences:

  • (1) The ophthalmic headache's crisis is caused, in fact, by a spasm of convergence on an unknown exophory of which the amplitude of fusion is satisfying, and the presence of which can only be seen with test under screen.
  • (2) Since only a few of these medium sized terminals in any one cluster degenerate after tectal lesions, and none degenerate after cortical lesions, it is suggested that the morphological arrangement of these clusters may permit the convergence of axons from several sources, some of which are unidentified, onto the same dendritic segment.
  • (3) Eye movements of convergence and divergence were recorded by a limbus tracker.
  • (4) The silver impregnated axons of these cells converge to a paired centrosuperficial tract forming terminal enlargements at the ventrolateral surface of the spinal cord.
  • (5) The aim was to find out to what extent information from homonymous muscles of the forelimbs converge on the same CBM neurons and whether the probability of such a convergence depends on location (axial, proximal, distal) or function (flexor, extensor) of the tested muscles.
  • (6) However, only a small fraction of the neurons (2 of 13 tested) which received such convergent inputs could be antidromically driven from the upper thoracic spinal cord.
  • (7) This modification improves the convergence properties of the network and is used to control a switch which activates the learning or template formation process when the input is "unknown".
  • (8) Regions within the desmosome where the two plasma membranes converged suggested that gap junctions were a component of the desmosome-like junctions.
  • (9) The association constants and the binding capacities of association of small molecules with macromolecules have been determined by the tangent analysis, the graphical analysis, and the computer data analysis, by trial and convergence of the Scatchard plot.
  • (10) After a short review of the literature the reduction of earning capacity on the common labour market in cases of decrease of fusion, convergence and accommodation caused by head injuries is discussed and percentual values are proposed.
  • (11) The developed apparatus included ultrasonic generators operating at a frequency of 0.5-3 MHz, piezoceramic radiators of various design providing the heating of an object with convergent, divergent and plane ultrasonic waves, thermoprobes in the form of single or multiple thermocouples with the bends from 5 points at a 5 mm distance from one another, temperature meters and various auxiliaries.
  • (12) Indeed this procedure is the only one which can act in a fitted manner on muscular spasms responsible of more than 60% of convergent squints.
  • (13) Consistent with the convergence hypothesis, only those sites that specify amino acids in the mature lysozyme are shared uniquely with ruminant lysozyme genes.
  • (14) Prism fixation disparity curves were determined in three different experimental situations: the routine method according to Ogle, a method to stimulate the synkinetic convergence (Experiment I, with one fixation point as sole binocular stimulus) and a method to stimulate the fusion mechanism (Experiment II, with random dot stereograms).
  • (15) Convergent validity between the two non-verbal memory tests, discriminant validity against tests of verbal memory, and criterion-related validity in relation to the influence of different treatment modalities, indicate the tests as valid instruments for measuring non-verbal memory.
  • (16) Because current family systems theory indicates that positive individual relationships within a dyad (e.g., child-mother) should be related to an overall favorable impression of the family system, we hypothesized that these two instruments should demonstrate convergence on selected dimensions.
  • (17) Convergence to similar structures obtained with root-mean-square deviations between resulting structures of 0.37 to 0.92 A for the central hexamer of the octamer.
  • (18) Convergent results from a multimethod assessment of the issue show that methadone maintenance has long-term and short-term suppressive effects on narcotics use and property crime.
  • (19) Several conventional internal fixation techniques and a three converging screw method were used.
  • (20) These neurons showed a high degree of synaptic convergence, also responding synaptically with a high-frequency burst of spikes to stimulation of both visual area 2 and the corpus callosum.