Results 21 to 30 of about 46,590 (254)
The R *-operation for Feynman graphs with generic numerators
The R *-operation by Chetyrkin, Tkachov, and Smirnov is a generalisation of the BPHZ R-operation, which subtracts both ultraviolet and infrared divergences of euclidean Feynman graphs with non-exceptional external momenta.
Franz Herzog, Ben Ruijl
doaj +1 more source
The European Shock Tube for High-Enthalpy Research is a new state-of-the-art facility, tailored for the reproduction of spacecraft planetary entries in support of future European exploration missions, developed by an international consortium led by ...
Ricardo Grosso Ferreira +6 more
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The optimal regime of three-photon resonant excitation of a helium atom via a femtosecond ultraviolet (UV) pulse was discovered and numerically studied, at which the maximum power of the third harmonic of the UV field is achieved in the spectrum of ...
Ilias R. Khairulin +5 more
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Vacuum Ultraviolet Source [PDF]
A low inductance three-electrode spark source for the vacuum ultraviolet fed by a 20-kV, 13-μF capacitor is described. Its main feature is its ability to generate spectra of very high degrees of ionization. A 6-kV spark produces spectra of CV and CVI as well as FeXVI, while a 17–18-kV spark yields FeXVIII, AlXII, and AlXIII.
Uri Feldman +2 more
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Spectrum and Energy Levels of Four-Times Ionized Yttrium (Y V)
The analysis of the spectrum of four-times-ionized yttrium, Y V, was extended to provide a large number of new spectrum lines and energy levels. The new analysis is based on spectrograms made with sliding-spark discharges on 10.7 m normal- and grazing ...
Joseph Reader
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Vacuum ultraviolet holography [PDF]
We report the first demonstration of holographic techniques in the vacuum ultraviolet spectral region. Holograms were produced with coherent 1182-Å radiation. The holograms were recorded in polymethyl methacrylate and examined with an electron microscope.
G. C. Bjorklund +2 more
openaire +1 more source
Photofunctionalization of Dental Implants – A Literature Review
Dental implant therapy is a widely utilized procedure for replacing missing teeth, with success heavily dependent on the effective integration of the implant into the bone.
R. Yamuna +4 more
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The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka +9 more
wiley +1 more source
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley +1 more source
We have proposed highly efficient microcavity wavelength conversion devices that do not utilize the birefringence or ferroelectricity of crystals. In this study, we utilized a low-birefringence paraelectric SrB _4 O _7 crystal with significant potential ...
Tomoaki Nambu +8 more
doaj +1 more source

