Spoilers in the ILC Beam Delivery System are required to survive a minimum of 1-2 direct impacts from each energetic electron or positron bunch of charged particles without failure, in addition to maintaining low geometric and resistive wall wakefields. The transient shock wave resulting from rapid localised beam heating and its implications for spoiler design are studied using ANSYS. The reali...

We consider simulation games played between Spoiler and Duplicator on two Büchi automata in which the choices made by Spoiler can be buffered by Duplicator in two different buffers before she executes them on her structure. Previous work on such games using a single buffer has shown that they are useful to approximate language inclusion problems. We study the decidability and complexity and sho...

Spoilers—critical plot information about works of fiction that “spoil” a viewer’s enjoyment—have prompted elaborate conventions on social media to allow readers to insulate themselves from spoilers. However, these solutions depend on the conscientiousness and rigor of Internet posters and are thus an imperfect system. We create an automatic alternative that could alert users when a piece of tex...

Given a movie comment, does it contain a spoiler? A spoiler is a comment that, when disclosed, would ruin a surprise or reveal an important plot detail. We study automatic methods to detect comments and reviews that contain spoilers and apply them to reviews from the IMDB (Internet Movie Database) website. We develop topic models, based on Latent Dirichlet Allocation (LDA), but using linguistic...

Introduction T2and diffusion-weighted imaging are useful as non-contrast-enhanced MRI techniques; however both are limited by low-resolution and blurring [1,2]. The Fast Acquisition Double Echo (FADE) sequence is a 3D steady-state sequence with two echoes per TR; spoiler gradients that separate the echoes provide diffusion weighting. FADE enables high-resolution T2and diffusion-weighting imagin...

This study discusses hydrodynamic effects of horizontal spoilers fixed on submarine pipelines. Numerical calculations are conducted to investigate the influences of the spoiler on flow profile, vortex shedding frequency, drag coefficients and lift coefficients. The calculation results demonstrate that attached horizontal spoilers could change the wake flow and enhance the self-burial of the pip...

In this paper, we investigate Duplicator-Spoiler Games, a method of comparing the properties of structures. These games are especially significant because they have deep connections to logical expressibility. Traditionally, Duplicator-Spoiler Games were played with a preset, finite number of turns. We do not examine such situations but instead consider games of arbitrary lengths, which we repre...

When high-speed train runs in the environment with a large number of airborne particles, these particles may accumulate on bogie train, which will further challenge normal operation and reduce riding comfort safety. In order to prevent entering into area, different protective devices around are used. However, up present, systematical analysis effects diverse measures against types still very li...

Seiring dengan perkembangan teknologi yang semakin cepat, penggunaan komponen aerodinamika tipe aktif mulai banyak diterapkan pada mobil. Salah satunya adalah spoiler dinamis. Spoiler dinamis suatu memiliki sinergitas ketika mobil melakukan pengereman maupun gerakan membelok serta dapat juga bekerja secara simultan. Penelitian ini bertujuan untuk merancang mekanisme sudut putar pergerakan maksi...

On-line chain partition is a two-player game between Spoiler and Algorithm. Spoiler presents a partially ordered set, point by point. Algorithm assigns incoming points (immediately and irrevocably) to the chains which constitute a chain partition of the order. The value of the game for orders of width w is a minimum number val(w) such that Algorithm has a strategy using at most val(w) chains on...