Results 61 to 70 of about 2,356,950 (226)
Cross-lingual Question Answering with QED [PDF]
, 2004 We present improvements and modifications of the QED open-domain question answering system developed for TREC-2003 to make it cross-lingual for participation in the CrossLinguistic Evaluation Forum (CLEF) Question Answering Track 2004 for the source ...
Johan Bos +11 more
core
Precision Turned Parts Manufacturer Germany
, 2020 Sanjay Precision Industries one of the leading manufacturers and exporters of CNC Turned Parts, Precision Turned Parts and Precision Custom Components in ...
Sanjay Precision Industries
core +1 more source
Electron and photon structure functions at two loops
Journal of High Energy PhysicsWe present a fully analytic computation of the complete electron and photon structure functions, or QED lepton parton distribution functions (PDFs) up to two-loop order.
Marvin Schnubel, Robert Szafron
doaj +1 more source
Towards a precision calculation of N eff in the Standard Model. Part III. Improved estimate of NLO contributions to the collision integral [PDF]
Journal of Cosmology and Astroparticle PhysicsWe compute the dominant QED correction to the neutrino-electron interaction rate in the vicinity of neutrino decoupling in the early universe, and estimate its impact on the effective number of neutrino species N eff in cosmic microwave background ...
M. Drewes +4 more
semanticscholar +1 more source
Performance change detection and recovery in inferential control loops
The Canadian Journal of Chemical Engineering, EarlyView.Abstract In most industrial environments, soft sensors are crucial for estimating variables that are hard to measure. It is critical that these variables be estimated quickly and accurately because they are closely linked to plant safety and profit. Therefore, performance drift in the soft sensors cannot be ignored.
Xuanhui Zhai, Yuri A. W. Shardt
wiley +1 more source
Entanglement and Bell nonlocality in τ + τ − at the BEPC
Journal of High Energy PhysicsQuantum entanglement and Bell nonlocality are two phenomena that occur only in quantum systems. In both cases, these are correlations between two subsystems that are classically absent.
Tao Han, Matthew Low, Youle Su
doaj +1 more source
Theory uncertainties in predictions of strong-field QED [PDF]
Physical Review ResearchExperiments using high-power lasers and relativistic electron beams will soon be capable of precision testing of the theory of strong-field quantum electrodynamics. The comparison between experiment and theory always occurs via numerical simulations, but
T. Blackburn
semanticscholar +1 more source
Contributions to Plasma Physics, EarlyView.ABSTRACT The properties of plasmas in the low‐density limit are described by virial expansions. Analytical expressions are known for the lowest virial coefficients from Green's function approaches. Recently, accurate path‐integral Monte Carlo (PIMC) simulations were performed for the hydrogen plasma at low densities by Filinov and Bonitz (Phys. Rev.
Gerd Röpke +3 more
wiley +1 more source
Laser-assisted Light-by-light scattering in Born-Infeld and axion-like particle theories
Journal of High Energy PhysicsThe precision measurements of well-known light-by-light reactions lead to important insights of nonlinear quantum electrodynamics (QED) vacuum polarization.
Kai Ma, Tong Li
doaj +1 more source
Few‐Photon Fluorescence From Ultracold Bosons in an Optical Cavity
Contributions to Plasma Physics, EarlyView.ABSTRACT Within a cavity quantum electrodynamics framework, we analyse the fluorescent spectrum of ultracold bosons in resonant and second‐harmonic generation (SHG) regimes. Two settings are considered: (i) (few) bosons in an optical lattice and (ii) a trapped two‐component dilute Bose–Einstein condensate (2BEC) within the Bogoliubov scheme.
Megha Gopalakrishna +2 more
wiley +1 more source