| 释义 |
divergence
di·ver·gence D0301700 (dĭ-vûr′jəns, dī-)n.1. a. The act or process of diverging.b. The state of being divergent.c. The degree by which things diverge.2. A departure from a norm; a deviation. See Synonyms at deviation.3. A difference between or among items: "riven as the country was with competing interests and a wide divergence of incomes and ambitions" (James Conaway). See Synonyms at difference.4. Biology The evolutionary tendency or process by which animals or plants that are descended from a common ancestor evolve into different forms when living under different conditions.5. Mathematics The property or manner of diverging; failure to approach a limit.6. Physiology A turning of both eyes outward from a common point or of one eye when the other is fixed.7. Meteorology A condition characterized by the uniform expansion in volume of a mass of air over a region, usually accompanied by fair dry weather.divergence (daɪˈvɜːdʒəns) n1. the act or result of diverging or the amount by which something diverges2. the condition of being divergent3. (Physical Geography) meteorol the outflowing of airstreams from a particular area, caused by expanding air4. (Mathematics) maths a. the scalar product of the operator, ∇, and a vector function, A, where ∇= i∂/∂x + j∂/∂y+ k∂/∂z, and i, j, and k are unit vectors. Usually written: div A, ∇A, or ∇A.. See curl11, gradient4b. the property of being divergent5. (General Physics) the spreading of a stream of electrons as a result of their mutual electrostatic repulsion6. (Physiology) the turning of the eyes outwards in order to fixate an object farther away than that previously being fixated. Compare convergence77. (Biology) Also called: divergent evolution the evolutionary development of structures or organisms that differ from each other in form and function but have evolved from the same basic structure or organism. Compare convergence5 Also called (for senses 1, 2): divergency or divergementdi•ver•gence (dɪˈvɜr dʒəns, daɪ-)
n. 1. an act or instance of diverging. 2. a divergent state or quality. 3. the degree or point of diverging. 4. a difference of structure in related organisms caused by different environmental pressures. 5. the net flow of air from a given region. [1650–60; < Medieval Latin] di·ver·gence (dĭ-vûr′jəns)1. Mathematics The property or manner of failing to approach a limit, such as a point, line, or value.2. Biology The evolution of different forms or structures in related species as they adapt to different environments. An example of divergence is the development of wings in bats from the same bones that form the arm and hand or paw in most other mammals. Also called divergent evolution. Compare convergence.Thesaurus| Noun | 1. |  divergence - the act of moving away in different direction from a common point; "an angle is formed by the divergence of two straight lines"divergencyseparation - the act of dividing or disconnecting | | 2. | divergence - a variation that deviates from the standard or norm; "the deviation from the mean"deviation, difference, departurevariation, fluctuation - an instance of change; the rate or magnitude of changevariance, variant, discrepancy - an event that departs from expectationsdriftage - the deviation (by a vessel or aircraft) from its intended course due to driftingflection, flexion, inflection - deviation from a straight or normal course | | 3. | divergence - an infinite series that has no limitdivergencyseries - (mathematics) the sum of a finite or infinite sequence of expressionsconvergency, convergence - the approach of an infinite series to a finite limit | | 4. |  divergence - a difference between conflicting facts or claims or opinions; "a growing divergence of opinion"discrepancy, disagreement, variancedifference - the quality of being unlike or dissimilar; "there are many differences between jazz and rock"leeway, allowance, tolerance, margin - a permissible difference; allowing some freedom to move within limits |
divergencenoun difference, varying, departure, disparity, deviation, separation There's substantial divergence of opinion in the party.divergencenoun1. The condition of being unlike or dissimilar:difference, discrepance, discrepancy, disparity, dissimilarity, dissimilitude, distinction, divarication, divergency, unlikeness.2. A departing from what is prescribed:aberration, departure, deviation, divergency, diversion.3. An instance of digressing:aside, deviation, digression, divagation, divergency, excursion, excursus, irrelevancy, parenthesis, tangent.4. The condition of being divided, as in opinion:disunion, disunity, divergency, division, schism.Translationsdiverge (daiˈvəːdʒ) verb1. to separate and go in different directions. The roads diverge three kilometres further on. 分岔 （道路）分叉 2. to differ (from someone or something else); to go away (from a standard). This is where our opinions diverge. (意見等)分岐，偏離(標準) （意见等）分岐，偏离（标准） diˈvergence noun 分岔，散度，歧見，偏差 分叉，（数）散度，分歧，背离 diˈvergent adjective 岔開的，分歧的 叉开的，发散的 Divergence
divergence[də′vər·jəns] (electronics) The spreading of a cathode-ray stream due to repulsion of like charges (electrons). (fluid mechanics) The ratio of the area of any section of fluid emerging from a nozzle to the area of the throat of the nozzle. (mathematics) For a vector-valued function, the sum of the diagonal entries of the Jacobian matrix; it is the scalar product of the del operator and the vector. (meteorology) The two-dimensional horizontal divergence of the velocity field. (nucleonics) In a nuclear reactor, the condition wherein the number of neutrons produced increases in each succeeding generation. (oceanography) A horizontal flow of water, in different directions, from a common center or zone. (physics) The spreading apart of a beam of particles of light. Divergence in biology, the divergence of characters of organisms in the process of evolution. The concept of divergence was proposed by C. Darwin to explain the appearance of diverse varieties of cultivated plants, breeds of domestic animals, and biological species in nature. In artificial selection divergence within each group of cultivated plants and domestic animals depends on the needs of man. Darwin used the principle of divergence to explain species formation in nature. If a species has a broad distribution and adapts to various ecological conditions, divergence takes place. Divergence is expressed in the appearance of differences in populations that were originally similar and is caused by the inevitably slightly different direction of natural selection in various parts of a species’ range. Divergence leads to the appearance of organisms that vary in structure and function; this in turn assures more complete use of environmental conditions, since, according to Darwin, the greatest “sum of life” is realized by the broadest variety of structures. Divergence is supported by the struggle for existence: usually even slightly specialized forms have selective advantages, which brings about more rapid extinction of intermediate forms and development of various types of isolation. The principle of divergence also explains the process of formation of larger (supraspecies) systematic groups and the rise of gaps between them. A. V. IABLOKOV
Divergence [of a vector field a(M) at a point (x, y, z)], the scalar quantity div a = σP/σx + σQ/σy + σRR/σZ where P, Q, and R are components of the vector a. The divergence is the limit of the ratio of the flux of a vector field through a closed surface surrounding the given point, to the volume delimited by it when the surface contracts toward the point. Divergence plays an important role in the applications of mathematics to physics. For example, if the vector field a(M) is considered to be a velocity field in a steady flow of an incompressible fluid, then div a at a point designates the intensity of the source (div a > 0) or of the flow (div a < 0) located at this point, or the absence of source and flow (div a = 0). The properties of divergence are: div (a + b) = div a + div b div (φa) = φ div a + a grad φ div rot a =0 div grad φ = Δφ where Δ is a Laplace operator. divergence Directional divergence or divergence due to diffluent flow.i. A static instability due to the aerodynamic loads which deform the control surface or body being greater than the elastic restoring forces.
ii. A situation in which a control application by the pilot results in uncommanded and/or undesirable behavior of the aircraft that is unintended by the pilot, such as a steepening spiral descent, spin, pitch-up, etc. Divergence may result in severe deformation or even breakup of the aircraft.
iii. A condition that exists when the distribution of winds within a given area results in a net horizontal flow of air outward from the region.divergence
divergence [di-ver´jens] a moving apart, or inclination away from a common point. adj., adj divergent.di·ver·gence (dī-vĕr'jens), 1. A moving or spreading apart or in different directions. 2. The spreading of branches of the neuron to form synapses with several other neurons. [L. di-, apart, + vergo, to incline] divergence (dĭ-vûr′jəns, dī-)n.1. a. The act or process of diverging.b. The state of being divergent.c. The degree by which things diverge.2. A departure from a norm; a deviation.3. Biology The evolutionary tendency or process by which animals or plants that are descended from a common ancestor evolve into different forms when living under different conditions.4. Physiology A turning of both eyes outward from a common point or of one eye when the other is fixed.di·ver·gence (di-vĕr'jĕns) 1. A moving or spreading apart or in different directions. 2. The spreading of branches of the neuron to form synapses with several other neurons. [L. di-, apart, + vergo, to incline]divergence 1. The act or state of moving off in different directions from a point. 2. The departure from each other of two processes, modes of action or courses of evolution. 3. In genetics, the degree, usually expressed as a percentage, to which two related DNA lengths differ in nucleotide sequences, or two similar proteins differ in amino acid sequence. divergence1. Movement of the eyes turning away from each other. 2. Characteristic of a pencil of light rays, as when emanating from a point source. Syn. negative convergence. See vergence.
divergence excess A high exophoria at distance associated with a much lower exophoria at near. It may occasionally give rise to diplopia in distance vision.
fusional divergence A movement of the eyes away from each other in response to retinal disparity, in order to restore single binocular vision. It occurs most commonly when induced by a base-in prism.
divergence insufficiency A high esophoria at distance associated with esophoria at near. It often gives rise to symptoms of asthenopia in both distance and near vision.
divergence paralysis See divergence paralysis.
vertical divergence Relative vertical movement between the two eyes.Divergence
DivergenceWhen two or more averages or indexes fail to show confirming trends.DivergenceIn technical analysis, a situation in which two indicators move in opposite directions. For example, stock prices may decline while bond prices may increase. This can be either a bullish or a bearish indicator, depending on the nature of the divergence. Technical analysts use any number of related indicators to attempt to observe divergence and make investment decisions accordingly. See also: MACD.AcronymsSeeDIVdivergence
Related to divergence: Divergence theoremSynonyms for divergencenoun differenceSynonyms- difference
- varying
- departure
- disparity
- deviation
- separation
Synonyms for divergencenoun the condition of being unlike or dissimilarSynonyms- difference
- discrepance
- discrepancy
- disparity
- dissimilarity
- dissimilitude
- distinction
- divarication
- divergency
- unlikeness
noun a departing from what is prescribedSynonyms- aberration
- departure
- deviation
- divergency
- diversion
noun an instance of digressingSynonyms- aside
- deviation
- digression
- divagation
- divergency
- excursion
- excursus
- irrelevancy
- parenthesis
- tangent
noun the condition of being divided, as in opinionSynonyms- disunion
- disunity
- divergency
- division
- schism
Synonyms for divergencenoun the act of moving away in different direction from a common pointSynonymsRelated Wordsnoun a variation that deviates from the standard or normSynonyms- deviation
- difference
- departure
Related Words- variation
- fluctuation
- variance
- variant
- discrepancy
- driftage
- flection
- flexion
- inflection
noun an infinite series that has no limitSynonymsRelated WordsAntonymsnoun a difference between conflicting facts or claims or opinionsSynonyms- discrepancy
- disagreement
- variance
Related Words- difference
- leeway
- allowance
- tolerance
- margin
|