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Traveling surface wave propagation on shallow water with variable bathymetry and current
Announce Type: replace Abstract: Energy transmission over long distances by waves is a key mechanism for many natural processes. This possibility arises when an inhomogeneous medium is arranged in such a manner that it enables a certain type of wave to propagate with virtually no reflection or scattering. By application of the Laplace cascade method for integrating second-order hyperbolic equations, a general algorithm for finding the parameters of inhomogeneous non-reflecting flows is proposed.
Plasma wakefield dynamics of self-generated electron bunch trains
Announce Type: new Abstract: Laser plasma accelerators can deliver high-energy, quasi-monoenergetic electron beams over centimeter-scale distances. In this work, we report on the generation of narrow, quasi-monoenergetic electron bunch trains with periodic energy spacing issued from downramp injection in a laser driven wakefield accelerator. The periodicity in energy is shaped via relativistic lengthening of the wakefield during the acceleration phase, while the spatial periodicity is...
Static Electric Fields as a Model for Hydrogen-Bond-Induced Dissociation of HF and HCl
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Theoretical Analysis of Engression and Reverse Markov Engression
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Wasserstein normalized autoencoder for anomaly detection
Announce Type: replace-cross Abstract: A novel anomaly detection algorithm is presented. The Wasserstein normalized autoencoder (WNAE) is a normalized probabilistic model that minimizes the Wasserstein distance between the learned probability distribution--a Boltzmann distribution where the energy is the reconstruction error of the autoencoder--and the distribution of the training data. This algorithm has been developed and applied to the identification of semivisible jets--conical sprays of...
Managing hydrogen emissions is key to maximizing climate benefits as hydrogen use expands, say researchers
Managing hydrogen emissions is key to maximizing climate benefits as hydrogen use expands, say researchers Lisa Lock Scientific Editor Robert Egan Associate Editor Current estimates of hydrogen's climate impact are now sufficiently robust to inform policy and business decision-making, according to researchers in a new review article on the climate impacts of hydrogen emissions. Hydrogen is expected to be an important component of future low-carbon energy and industrial systems, particularly...
A distributed routing protocol for sending data from things to the cloud leveraging fog technology in the large-scale IoT ecosystem
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Scientists think they solved the mystery of the Amaterasu particle
Scientists think they solved the mystery of the Amaterasu particle - Date: - June 9, 2026 - Source: - Penn State - Summary: - The mysterious Amaterasu particle may not be a proton at all. New research suggests that some of the most extreme cosmic rays could be ultraheavy atomic nuclei, heavier than iron, which are better able to retain their energy while traveling through space. This idea could help explain how these rare particles reach Earth and provide new clues about the powerful cosmic...
World’s longest building cost £1.6bn to build and takes 40 minutes to walk across
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How the electromagnetic spectrum opened our eyes to the universe
The following is an extract from our Lost in Space-Time newsletter. Each month, we dive into fascinating ideas from around the universe. You can sign up for Lost in Space-Time here.