1,170 research outputs found

    JetWeb: A WWW Interface and Database for Monte Carlo Tuning and Validation

    Full text link
    A World Wide Web interface to a Monte Carlo validation and tuning facility is described. The aim of the package is to allow rapid and reproducible comparisons to be made between detailed measurements at high-energy physics colliders and general physics simulation packages. The package includes a relational database, a Java servlet query and display facility, and clean interfaces to simulation packages and their parameters.Comment: See http://jetweb.hep.ucl.ac.uk for further informatio

    ViBe (Virtual Berlin) - Immersive Interactive 3D Urban Data Visualization - Immersive interactive 3D urban data visualization

    Get PDF
    The project investigates the possibility of visualizing open source data in a 3D interactive virtual environment. We propose a new tool, 'ViBe'. We programmed 'ViBe' using Unity for its compatibility with HTC VIVE glasses for virtual reality (VR). ViBe offers an abstract visualization of open source data in a 3D interactive environment. The ViBe environment entails three main topics a) inhabitants, b) environmental factors, and c) land-use; acting as representatives of parameters for cities and urban design. Berlin serves as a case study. The data sets used are divided according to Berlin's twelve administrative districts. The user immerses into the virtual environment where they can choose, using the HTC Vive controllers, which district (or Berlin as a whole) they want information for and which topics they want to be visualized, and they can also teleport back and forth between the different districts. The goal of this project is to represent different urban parameters an abstract simulation where we correlate the corresponding data sets. By experiencing the city through visualized data, ViBe aims to provide the user with a clearer perspective onto the city and the relationship between its urban parameters. ViBe is designed for adults and kids, urban planners, politicians and real estate developers alike

    Timaeus on Color Mixture

    Get PDF
    Now with extra footnotes, by editorial demand! Final version accepted by Oxford Studies in Ancient Philosophy. This essay consists in a trick and a potential insight. The trick consists in a minimalist interpretation of color mixture. The account of color mixture is minimalist in the sense that, given certain background assumptions, there is no more to Timaeus’ account of color mixture than the list of the chromatic pathēmata and the list of how these combine to elicit perceptions of all the colors. The only potential controversial elements of the minimalist interpretation are the relevant background assumptions and the interpretation of the chromatic pathēmata. The potential insight concerns a motive that Plato, in the guise of Timaeus, may have for presenting an account of color mixture. Specifically, I shall argue that on the minimalist interpretation, Plato may be read as reconciling the Democritrean four color scheme with an older tradi- tion where white and black are the fundamental chromatic opposition. As we shall see, this bears on the interpretation of the chromatic pathēmata

    Determination of nanoscale ferroelectric domain distribution in multilayer piezoelectric actuators

    Get PDF
    Caratterizzazione in scala nanometrica della distribuzione di domini ferroelettrici in attuatori piezoelettrici multistrato, utilizzati negli iniettori dei motori diesel. Le analisi sono state fatte attraverso la tecnica: Piezoresponse Force Microscopy (PFM). Essa consiste in un microscopio a forza ionica (AFM),in cui viene applicata una differenza di potenziale alla punta che entra in contatto con il materiale.ope

    Localized Ferromagnetic Resonance in Inhomogeneous Thin Films

    Get PDF
    The effect of sample inhomogeneity on the ferromagnetic resonance linewidth is determined by diagonalization of a spin wave Hamiltonian for ferromagnetic thin films with inhomogeneities spanning a wide range of characteristic length scales. A model inhomogeneity is used that consist of size D grains and an anisotropy field Hp that varies randomly from grain to grain in a film with thickness d and magnetization Ms. The resulting linewidth agrees well with the two-magnon model for small inhomogeneity, HpD « πMsd. For large inhomogeneity, HpD » πMsd the precession becomes localized and the spectrum approaches that of local precession on independent grains

    Document Comparison Based on the Color Scheme

    Get PDF
    Tato práce pojednává o porovnávání webových dokumentů na základe jejich barevného schématu. Zaměřujeme se na problematiku získávání barevné schémy, pro ktorou byly navrženy dvě metody spracování dokumentu, obě využívajíci knihovnu CSSBox [1]. Dále je také představen návrh normalizace dokumentu, která získavání barevného schématu předchází. Její hlavním cílem je identifikovat a zjednotit možný promněnlivý obsah zkoumaného dokumentu, aby neovlivňoval výsledky nežádoucím spůsobem. Řeší se také implementace těchto navrhovaných postupů do knihovny, která byla v závěru práce testována na vzorové sade webových dokumentů.This paper proposes the method of web document comparison based on the color scheme. It focuses on issues of color scheme retrieving. There are suggested two methods that are using CSSBox library [1]. Also, a suggestion for a document normalization is introduced. Its main goal is to identify and unite possible dynamic content of given document which could negatively affect results of retrieving. Suggested procedures are implemented in the library. It was tested on a set of web documents.

    Aesthetic Preference Prediction in Interior Design: Fuzzy Approach

    Full text link
    Interior design is all about creating spaces that look and feel good. However, the subjective nature of aesthetic preferences presents a significant challenge in defining and quantifying what makes an interior design visually appealing. The current paper addresses this gap by introducing a novel methodology for quantifying and predicting aesthetic preferences in interior design. Our study combines fuzzy logic with image processing techniques. We collected a dataset of interior design images from social media platforms, focusing on essential visual attributes such as color harmony, lightness, and complexity. We integrate these features using weighted average to compute a general aesthetic score. Our approach considers individual color preferences in calculating the overall aesthetic preference. We initially gather user ratings for primary colors like red, brown, and others to understand their preferences. Then, we use the pixel count of the top five dominant colors in the image to get the color scheme preference. The color scheme preference and the aesthetic score are then passed as inputs to the fuzzy inference system to calculate an overall preference score. This score represents a comprehensive measure of the user's preference for a particular interior design, considering their color choices and general aesthetic appeal. We used the 2AFC (Two-Alternative Forced Choice) method to validate our methodology, achieving a notable hit rate of 0.7. This study can help designers and professionals better understand and meet people's interior design preferences, especially in a world that relies heavily on digital media.Comment: Submitted to IEEE conference for consideratio
    corecore