Mostrando 361 - 380 Resultados de 875 Para Buscar '"Xenón"', tiempo de consulta: 0.13s Limitar resultados
  1. 361
    “…The splitting was reduced by the presence of water vapor that presumably influences xenon-surface interactions. The hp (131)Xe spectrum shows differential line broadening, suggesting the presence of strong adsorption sites. …”
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  2. 362
    “…Even though their chemical shifts are compatible with xenon dissolved in bulk polymers, variable temperature experiments rule out this possibility. …”
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  3. 363
    “…In recent years, inert gases such as helium, argon, and xenon have gained considerable attention for their medical value. …”
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  4. 364
    “…The use of the scintillation produced in the charge avalanches in GEM holes as signal amplification and readout is investigated for xenon. A VUV-sensitive avalanche photodiode has been used as photosensor. …”
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  5. 365
    “…OBJECTIVE: To evaluate the effect of varying concentrations of brilliant blue green (BBG) and their different biochemical characteristics on retinal pigment epithelial (RPE) cells under xenon light source illumination at varying distances to identify safe parameters for intraoperative use. …”
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  6. 366
    “…A K-edge imaging method has been developed at the Canadian Light Source to very accurately obtain measurements of the concentration of iodinated contrast agent in the pulmonary vasculature and inhaled xenon in the airspaces of rats. To compare the iodine and xenon concentration maps, a scout projection image was acquired to define the region of interest within the thorax for imaging and to ensure the same locations were imaged in each K-edge subtraction (KES) acquisition. …”
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  7. 367
    “…We explore these two possibilities in detail for semiconductor (silicon and germanium) and xenon targets, considering several possibilities for the unmeasured ionization efficiency at low energies. …”
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  8. 368
    “…Here we show that the micromolar threshold can easily be reached by employing laser-polarized xenon and cage molecules reversibly hosting it. Indirect detection of caged xenon is made via chemical exchange, using ultra-fast Z spectroscopy based on spatio-temporal encoding. …”
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  9. 369
    “…Three dark matter direct detection experiments, DAMA, COGENT and CRESST, have reported a possible signal of WIMP interaction corresponding to very light particles, close to the edge of the XENON 100 and CDMS sensitivity. Imposing the latest constraints from colliders, flavour physics, electroweak precision tests and direct and indirect dark matter searches, we show that viable MSSM scenarios with a light neutralino, in agreement with all the present data, are feasible. …”
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  10. 370
    por Dobrigkeit Chinellato, David
    Publicado 2019
    “…These results will be systematically compared to measurements from xenon-xenon (Xe-Xe) and Pb-Pb collisions as well as to predictions from Monte Carlo event generators that include the latest developments in pQCD-inspired phenomenology. …”
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  11. 371
    “…Recently, the ALICE Collaboration reported an enhancement of the yield ratio of strange and multi-strange hadrons to charged pions as a function of multiplicity at mid-rapidity in proton-proton, proton-lead, lead-lead, and xenon-xenon scattering. ALICE observations provide a strong indication that a quark-gluon plasma is partly formed in high multiplicity events of both small and large colliding systems. …”
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  12. 372
    por CMS Collaboration
    Publicado 2021
    “…Material about the calibration of the luminosity delivered to the CMS experiment during the lead-lead (PbPb) and xenon-xenon (XeXe) data-taking periods in 2018 and 2017 at nucleon-nucleon center-of-mass energies of 5.02 and 5.44 TeV, respectively, is presented. …”
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  13. 373
    “…The effect of isotope shifts of nuclear magnetic resonance (NMR) frequency in xenon isotopes $^{129}$Xe and $^{131}$Xe polarized by optically-oriented alkali metal atoms is not only of fundamental interest, but also of practical significance, since it is the main factor limiting the accuracy of a whole class of prospective navigation and metrological devices. …”
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  14. 374
    por CMS Collaboration
    Publicado 2023
    “…Comparisons are made to various Monte Carlo event generators, and to previous measurements of PbPb and xenon-xenon collisions at similar collision energies. …”
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  15. 375
    “…Using additional data sets of proton-lead, proton-proton, and xenon-xenon collisions, the program has also included many advances, for example, in the understanding of the partonic nuclear structure, collectivity in smaller collision systems, and electromagnetic interactions. …”
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  16. 376
    “…Of note are trifunctionalized, water-soluble cryptophane-A derivatives, which exhibit exceptional affinity for xenon in aqueous solution. In this paper, we report high-resolution X-ray structures of cryptophane-A and trifunctionalized derivatives in crown–crown and crown–saddle conformations, as well as in complexes with water, methanol, xenon or chloroform. …”
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  17. 377
    por Han, Huijong, Kursula, Petri
    Publicado 2017
    “…Crystals of periaxin were derivatized with tungsten and xenon prior to data collection, and diffraction data for these crystals are reported at 3 and 1 wavelengths, respectively. …”
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  18. 378
    “…We determine the exclusion bands for the different dark-matter models from several experiments—SENSEI, CDMS-HVeV, XENON10, XENON100, and DarkSide-50—using a combination of Monte Carlo simulations and analytic estimates. …”
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  19. 379
    “…PURPOSE: This study aimed to assess the color stability of resin cements subjected to xenon radiation and evaluate their color change (ΔE) during time. …”
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  20. 380
    “…While hyperpolarized xenon-129 (HXe) MRI offers a wide array of tools for assessing functional aspects of the lung, existing techniques provide only limited quantitative information about the impact of an observed pathology on overall lung function. …”
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