125 research outputs found
Computational Modelling of Compaction in Asphaltic Mixtures and Geomaterials
No full textAsphaltic mixtures are heterogeneous composite materials consisting of aggregates coated and bound by asphalt binder. The long term performance of asphaltic pavements is highly dependent on the mechanical behaviour of the asphaltic mixture during construction (mixing and compaction) and operation; inadequate mixture compaction leads to faster moisture and oxygen diffusion, ravelling, rutting and poor fatigue life
Podcasting and input and output-based language learning of English modal verbs
No full textThis study investigates the effectiveness of podcasts in teaching EFL learners English modal verbs (EMVs). It argues that current deductive exercises are ineffective and proposes a more engaging alternative through podcasts. A quasi-experimental design with pre-test, post-test, and control group was employed. The Oxford Quick Placement Test ensured homogeneity among 193 initial EFL students at Islamic Azad University in Rasht, with 157 participants selected and randomly assigned to five experimental groups (n=26) and one control group (n=27). The experimental groups received training on EMVs via six podcast episodes, incorporating input-based (e.g., comprehension tasks) or output-based (e.g., speaking tasks) exercises. In contrast, the control group used traditional paper-and-pencil drills. All groups took pre-tests and post-tests on EMVs, with item order varied to mitigate practice effects. Results were analyzed for statistical significance, revealing a significant and promising improvement in EFL learners’ EMV knowledge. The podcasts naturally integrated EMVs into the conversation rather than explicitly explaining grammar rules, making the learning process more engaging. Findings suggest practical applications for teachers designing podcast-based exercises to maximize language acquisition. The findings are discussed in light of current perspectives on language learning and development, and suggestions for future research are provided
AN ANOMALY BEHAVIOR ANALYSIS METHODOLOGY FOR NETWORK-CENTRIC SYSTEMS By
No full textRights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Downloaded 3-Mar-2016 23:35:4
Particles Inside Particles: The Flow of Energy in Quarks, Gluons, and Jets
No full textThis thesis presents the author’s work in developing probes of the inner structure of jets in high-energy particle collisions. We begin by introducing QCD and the scattering of partons (quarks and gluons), discussing jets as theoretical and experimental proxies for partonic physics, and presenting the partonic cascade model of jet formation and jet substructure. Noting the ubiquitous presence of low-energy pollution in particle collision events, in the forms of hadronization, detector effects, the underlying event (UE), and pileup (PU), we then move towards the modern research area of developing pollution-insensitive probes of jet substructure. Pollution-insensitive features of jet substructure are often accessed theoretically either through jet grooming or energyweighted correlation functions. We present the basics of the modern theory of jet grooming as well as the work of the author in developing the Piranha paradigm for continuous jet grooming, introduced by the author in Ref. [1], and explore the formal and phenomenological benefits of continuous grooming techniques as pollutioninsensitive probes of jet substructure. We introduce the basics of the simplest energy-weighted correlation function – the energy-energy correlator (EEC), which probes angular correlations between particle pairs – and discuss its multi-particle analogues. We focus on the efficient and visually intuitive projected and resolved energy correlators introduced by the author in Ref. [2], which provide computationally-realistic, pollution-insensitive probes of angular many-body correlations in QCD jets. Finally, we exposit the generic theory of energy-weighted observable correlations (EWOCs), introduced by the author in Ref. [3], which utilizes the energy weighting of the EEC to provide pollution-insensitive probes of non-angular correlations within jets.Ph.D
Empirical Evaluation of Test Coverage for Functional Programs
No full textThe correlation between test coverage and test effectiveness is important to justify the use of coverage in practice. Existing results on imperative programs mostly show that test coverage predicates effectiveness. However, since functional programs are usually structurally different from imperative ones, it is unclear whether the same result may be derived and coverage can be used as a prediction of effectiveness on functional programs. In this paper we report the first empirical study on the correlation between test coverage and test effectiveness on functional programs. We consider four types of coverage: as input coverages, statement/branch coverage and expression coverage, and as oracle coverages, count of assertions and checked coverage. We also consider two types of effectiveness: raw effectiveness and normalized effectiveness. Our results are twofold. (1) In general the findings on imperative programs still hold on functional programs, warranting the use of coverage in practice. (2) On specific coverage criteria, the results may be unexpected or different from the imperative ones, calling for further studies on functional programs
Integration Axiomatic Design with Quality Function Deployment and Sustainable Design for the Satisfaction of an Airplane Tail Stakeholders
No full textAbstractOne of the most important criteria to remain competitive in the marketplace is a suitable product design that satisfy requirements of a diverse range of stakeholders. But, ambiguous, different and general description of customer needs, major technological advance and significant change from traditional requirements (cost, performance etc.) to new requirements such as, economic, environmental, ecological and societal consideration make the design process more complicate. It should be noticed too, while the new requirements have a major effect on the product successfully, the traditional requirement should not be forgotten by designers. Unfortunately, new issues sometimes are deeply coupled with traditional functions, so the current design methodologies are not able to consider them in the product design process. In this regard, the development of new design methods and tools that facilitate design process by consideration new requirements is vital. The Axiomatic Design (AD) approach is one of the most promising design methodology in the field of conceptual design. This method is emerging as a superior method of design, particularly when innovation versus incremental design is needed. This paper focuses on setting up the redesign of the Beech Baron 58 tail, by using AD method that integrate with Quality Function Deployment (QFD) and Eco-Design concepts
Where are you going next? A practical multi-dimensional look at mobility prediction
No full textUnderstanding and predicting mobility are essential for the design and evaluation of future mobile edge caching and networking. Consequently, research on human mobility prediction has drawn significant attention in the last decade. Employing information-theoretic concepts and machine learning methods, earlier research has shown evidence that human behavior can be highly predictable. Whether high predictability manifests itself for different modes of device usage, across spatial and temporal dimensions is still debatable. Despite existing studies, more investigations are needed to capture intrinsic mobility characteristics constraining predictability, to explore more dimensions (e.g. device types) and spatiotemporal granularities, especially with the change in human behavior and technology. We investigate practical predictability of next location visitation across three different dimensions: device type, spatial granularity and temporal spans using an extensive longitudinal dataset, with fine spatial granularity (AP level) covering 16 months. The study reveals device type as an important factor affecting predictability. Ultra-portable devices such as smartphones have”on-the-go” mode of usage (and hence dubbed”Flutes”), whereas laptops are”sit-to-use” (dubbed”Cellos”). The goal of this study is to investigate practical prediction mechanisms to quantify predictability as an aspect of human mobility modeling, across time, space and device types. We apply our systematic analysis to wireless traces from a large university campus. We compare several algorithms using varying degrees of temporal and spatial granularity for the two modes of devices; Flutes vs. Cellos. Through our analysis, we quantify how the mobility of Flutes is less predictable than the mobility of Cellos. In addition, this pattern is consistent across various spatio-temporal granularities, and for different methods (Markov chains, neural networks/deep learning, entropy-based estimators). This work substantiates the importance of predictability as an essential aspect of human mobility, with direct application in predictive caching, user behavior modeling and mobility simulations.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Information and Communication Technolog
Status of information resource organization in Iranian digital libraries
No full textThis research aimed to determine the status of information resource organization in Iranian digital libraries. The research method was analytical survey. Researcher-made questionnaire was used to collect data in order to study the status of research population about information resources organization. In fact, 38 Iranian digital libraries were made research population of this research. Findings showed that studied digital library applications have many capabilities to organize information resources. Some of these capabilities are relation between bibliographic records and related records in documentation format, Using Z39.50 in client side, allows entering group of resources, and so on. Moreover, digital libraries have a lot of chaos in organizing information resources. For instance, digital libraries just fill title, author, subject, publisher, year of publication, author (added entity) in more than 70 percent for Farsi book database. This status is not demonstrated for other databases in digital libraries
A journey through the Unity Atlantic Rhythm Map | software demonstration
No full textWith Team Rhythm Code: 2023 Unity Map Full-stack HTML Christina Mifsud | Delnia Alipour | Irianni Munoz | Man Sang SinAnd Mentor Dr. Gregory DykeInternational audienceA software demonstration in which all who have headphones and wifi can participate. I will present my audio-visual map of Black Atlantic intangible heritage, including a collection of rhythms performed by myself with my dance partner.Map teaser : 82 sec: (2024)Explore the Unity Atlantic Rhythm Map : https://unityatlantic.org/AUTHOR IS IDENTIFIED IN SOME MOVIE CREDITS/ IN TEXT TEXT TABS / ON CREDITS PAGE Technical requirements for all: fast WIFI CONNECTION. AUTHOR FEATURES IN MOVIES. Tech requirement for presenter: A HDMI projector connected to loudspeakers in a dim room with a projection screen.Tech requirements participants: tablet or computer or smartphone with browser, wifi and headphones. I cannot provide these, but most attendees can bring their own if requested to in advance / in the event listing.When white dots appear on the continents, the Map is ready to use. Open a list of rhythms by clicking on a white dot. Enjoy rhythm video/audio by clicking on a pink arrow. For each video, activate sound by clicking on the speaker icon or ‘Unmute’ button. Click on the [ X ] in the modal window corner to return to the Map.The Unity Map is a brower-based application, freely available for the public to interact with. Built to my design in a co-production with Gerador (Portugal) and Code Your Future (UK), the Map was launched to the public at l'Atelier, Manifest exhibition, Nantes, France 2024.09.19 – 10.06. In the map, rhythm refers to music and dance as one. The demonstration will illustrate the map design, creative process, international collaborations, and multi-archival integrations.Unity Atlantic Rhythm Map: the software demonstration was conducted by my collegues, Team Rhythm Code/Code Your Future with materials by the author after a 4hr flight delay caused me to miss the conference. Team Rhythm Code: 2023 Unity Map Full-stack HTML Christina Mifsud | Delnia Alipour | Irianni Munoz | Man Sang Sin2025.06.17 Glasgow: UK-Ireland Digital Humanities Association : Collaboration beyond Boundaries : University of Glasgow. For this presentation, the author D. Molloy was awarded a travel bursary of £300 from University of London
- …
