The development of the next generation of ultra-low energy antiproton and ion facilities requires precise information about the beam emittance to guarantee optimum performance. In the Extra-Low ENergy Antiproton storage ring (ELENA) the transverse emittances will be measured by scraping. However, this diagnostic measurement faces several challenges: non-zero dispersion and systematic errors due...

The halo experiment presently being conducted at the Low Energy Demonstration Accelerator (LEDA) at Los Alamos National Laboratory utilizes a generally traditional wire scanner for measurement of the beam core profile and a graphite scraper for measurement of the tails of the beam distribution. A lossy integrator is used to detect the replacement charge flowing to the wire and scraper. Independ...

Male katydids (Orthoptera: Tettigoniidae) produce mating calls by rubbing the wings together, using specialized structures in their forewings (stridulatory file, scraper and mirror). A large proportion of species (ca. 66%) reported in the literature produces ultrasonic signals as principal output. Relationships among body size, generator structures and the acoustic parameters carrier frequency ...

The extraction of information from social media is an essential yet complicated step for data analysis in multiple domains. In this paper, we present Vigi4Med Scraper, a generic open source framework for extracting structured data from web forums. Our framework is highly configurable; using a configuration file, the user can freely choose the data to extract from any web forum. The extracted da...

Wake eld studies using calorimetric methods are reported. Measurements show interference between wake elds generated by two bunches. The described technique can be used to determine which elements introduce bunch coupling. Introduction Due to nite resistance and irregularities of beam pipe wall the bunch of charged particles traveling through a beam pipe leaves behind a wake eld. The structure ...

Males of most species of crickets and katydids produce species-specific calling songs to attract conspecific females. The typical stridulatory apparatus of the Ensifera consists of a file-and-scraper system in the basal dorsal region of the forewings (tegmina): the file on the underside of the cubital vein of one tegmen is composed of a series of lamelliform teeth and is run against the sclerot...

A numerical simulation of the Mechanofusion (MF) device, which is used for powder surface modification (dry particle coating, mixing, etc.), is carried out using the discrete element modeling (DEM) technique. An existing, widely used, cohesionless contact model (Walton– Braun) is used for two-dimensional simulation studies, in which the particles are assumed to be frictional, elastic-plastic sp...