Results 131 to 140 of about 12,358 (240)
Abstract X‐ray phase contrast imaging (XPCI), when implemented in micro‐computed tomography (micro‐CT) mode, offers high‐contrast 3D imaging of weakly‐attenuating material samples. In the so‐called single‐mask edge illumination approach, a mask with periodically spaced transmitting apertures is used to split the x‐ray beam into narrow beamlets; when ...
Khushal Shah +8 more
wiley +1 more source
Fractional order modeling of prostate cancer with pulsed treatment and the impact of effector cell killing and cell competition. [PDF]
Saber H +5 more
europepmc +1 more source
Do robots boost productivity? A quantitative meta‐study
ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley +1 more source
Controlling worm propagation in wireless sensor networks: Through fractal-fractional mathematical perspectives. [PDF]
Shah MI +5 more
europepmc +1 more source
ABSTRACT We study optimal simple rating systems that partition sellers into a finite number of tiers. We show that optimal ratings must be threshold partitions, and that for linear supply and Cournot competition with constant marginal cost, optimal thresholds solve a k‐means clustering problem requiring only the quality distribution.
Hugo Hopenhayn, Maryam Saeedi
wiley +1 more source
Bifurcation and computational analysis of anthracnose virus spread in plants with splashing-rain under hypersensitive response. [PDF]
Faiz K +5 more
europepmc +1 more source
Validation of machine learning based scenario generators
Abstract Machine learning (ML) methods are becoming increasingly important for designing economic scenario generators for internal models. Validating data‐driven models requires different methods than validating classical, theory‐based models. We discuss two novel aspects of such validation: first, checking the multivariate distribution of risk factors,
Gero Junike, Solveig Flaig, Ralf Werner
wiley +1 more source
Poliomyelitis dynamics with fractional order derivatives and deep neural networks. [PDF]
Al-Quran A +3 more
europepmc +1 more source
Nonparametric Detection of a Time‐Varying Mean
ABSTRACT We propose a nonparametric portmanteau test for detecting changes in the unconditional mean of a univariate time series which may display either long or short memory. Our approach is designed to have power against, among other things, cases where the mean component of the series displays abrupt level shifts, deterministic trending behaviour ...
Fabrizio Iacone, A. M. Robert Taylor
wiley +1 more source
Feedback design to measure the effect of therapies in controlling cancer using the fractional approach. [PDF]
Nisar KS +3 more
europepmc +1 more source

