X-ray burster - перевод на русский
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X-ray burster - перевод на русский

CLASS OF X-RAY BINARY STARS
X-ray bursts; X-ray burst; X-Ray Burster; Rapid burster

X-ray burst         

[eksrei'bə:st]

общая лексика

всплеск рентгеновского излучения

астрономия

рентгеновская вспышка

вспышка рентгеновского (космического) излучения

X-ray burster         

[eksrei'bə:stə]

астрономия

(космический) источник рентгеновских вспышек

X-ray diffraction analysis         
  • Model of the arrangement of water molecules in ice, revealing the [[hydrogen bond]]s (1) that hold the solid together.
  • The incoming beam (coming from upper left) causes each scatterer to re-radiate a small portion of its intensity as a spherical wave. If scatterers are arranged symmetrically with a separation ''d'', these spherical waves will be in sync (add constructively) only in directions where their path-length difference 2''d'' sin θ equals an integer multiple of the [[wavelength]] λ. In that case, part of the incoming beam is deflected by an angle 2θ, producing a ''reflection'' spot in the [[diffraction pattern]].
  • Three methods of preparing crystals, A: Hanging drop. B: Sitting drop. C: Microdialysis
  • tetrahedrally]] and held together by single [[covalent bond]]s, making it strong in all directions. By contrast, graphite is composed of stacked sheets. Within the sheet, the bonding is covalent and has hexagonal symmetry, but there are no covalent bonds between the sheets, making graphite easy to cleave into flakes.
  • access-date=2018-11-28}}</ref> The electron density is obtained from experimental data, and the ligand is modeled into this electron density.
  • Structure of a protein alpha helix, with stick-figures for the covalent bonding within electron density for the crystal structure at ultra-high-resolution (0.91&nbsp;Å). The density contours are in gray, the helix backbone in white, sidechains in cyan, O atoms in red, N atoms in blue, and hydrogen bonds as green dotted lines.<ref>From PDB file 2NRL, residues 17–32.</ref>
  • Animation showing the five motions possible with a four-circle kappa goniometer. The rotations about each of the four angles φ, κ, ω and 2θ leave the crystal within the X-ray beam, but change the crystal orientation. The detector (red box) can be slid closer or further away from the crystal, allowing higher resolution data to be taken (if closer) or better discernment of the Bragg peaks (if further away).
  • backbone]] from its N-terminus to its C-terminus.
  • Rocknest]]", October 17, 2012).<ref name="NASA-20121030" />
  • A protein crystal seen under a [[microscope]]. Crystals used in X-ray crystallography may be smaller than a millimeter across.
  • An X-ray diffraction pattern of a crystallized enzyme. The pattern of spots (''reflections'') and the relative strength of each spot (''intensities'') can be used to determine the structure of the enzyme.
  • Workflow for solving the structure of a molecule by X-ray crystallography.
TECHNIQUE USED FOR DETERMINING THE ATOMIC OR MOLECULAR STRUCTURE OF A CRYSTAL, IN WHICH THE ORDERED ATOMS CAUSE A BEAM OF INCIDENT X-RAYS TO DIFFRACT INTO SPECIFIC DIRECTIONS
X-ray structure; X-Ray Crystallography; X-Ray Diffraction Pattern; X ray diffraction; X-ray diffraction analysis; Crystallography, x-ray; Protein Crystallography; Protein crystallography; Xray crystallography; Xray Crystallography; X-ray Crystallography; X-ray crystalography; Crystallographic resolution; Laue diffraction; X-ray diffraction; History of X-ray crystallography; X ray crystallography; X-ray single-crystal analysis; X-ray crystal structure; Single-crystal X-ray crystallography; X-ray crystallographer; Laue method; X-ray diffraction crystallography; Single-crystal X-ray diffraction; X-ray structural analysis

общая лексика

рентгеноструктурный анализ

строительное дело

рентгенографический дифракционный анализ (грунта)

Определение

АЛЬФОНС X
Мудрый (1221-84) , король Кастилии и Леона с 1252. Отвоевал у арабов Херес, Кадис и др. Централизаторская политика Альфонса Х натолкнулась на сопротивление знати, в 1282 фактически был лишен власти (править стал его сын Санчо).

Википедия

X-ray burster

X-ray bursters are one class of X-ray binary stars exhibiting X-ray bursts, periodic and rapid increases in luminosity (typically a factor of 10 or greater) that peak in the X-ray region of the electromagnetic spectrum. These astrophysical systems are composed of an accreting neutron star and a main sequence companion 'donor' star. There are two types of X-ray bursts, designated I and II. Type I bursts are caused by thermonuclear runaway, while type II arise from the release of gravitational (potential) energy liberated through accretion. For type I (thermonuclear) bursts, the mass transferred from the donor star accumulates on the surface of the neutron star until it ignites and fuses in a burst, producing X-rays. The behaviour of X-ray bursters is similar to the behaviour of recurrent novae. In the latter case the compact object is a white dwarf that accretes hydrogen that finally undergoes explosive burning.

The compact object of the broader class of X-ray binaries is either a neutron star or a black hole; however, with the emission of an X-ray burst, the compact object can immediately be classified as a neutron star, since black holes do not have a surface and all of the accreting material disappears past the event horizon. X-ray binaries hosting a neutron star can be further subdivided based on the mass of the donor star; either a high mass (above 10 solar masses (M)) or low mass (less than 1 M) X-ray binary, abbreviated as HMXB and LMXB, respectively.

X-ray bursts typically exhibit a sharp rise time (1–10 seconds) followed by spectral softening (a property of cooling black bodies). Individual burst energetics are characterized by an integrated flux of 1032–1033 joules, compared to the steady luminosity which is of the order 1030 W for steady accretion onto a neutron star. As such the ratio α of the burst flux to the persistent flux ranges from 10 to 1000 but is typically on the order of 100. The X-ray bursts emitted from most of these systems recur on timescales ranging from hours to days, although more extended recurrence times are exhibited in some systems, and weak bursts with recurrence times between 5–20 minutes have yet to be explained but are observed in some less usual cases. The abbreviation XRB can refer either to the object (X-ray burster) or to the associated emission (X-ray burst).

Как переводится X-ray burst на Русский язык