746 research outputs found
The Quantum Frontier of Software Engineering: A Systematic Mapping Study
Context. Quantum computing is becoming a reality, and quantum software
engineering (QSE) is emerging as a new discipline to enable developers to
design and develop quantum programs.
Objective. This paper presents a systematic mapping study of the current
state of QSE research, aiming to identify the most investigated topics, the
types and number of studies, the main reported results, and the most studied
quantum computing tools/frameworks. Additionally, the study aims to explore the
research community's interest in QSE, how it has evolved, and any prior
contributions to the discipline before its formal introduction through the
Talavera Manifesto.
Method. We searched for relevant articles in several databases and applied
inclusion and exclusion criteria to select the most relevant studies. After
evaluating the quality of the selected resources, we extracted relevant data
from the primary studies and analyzed them.
Results. We found that QSE research has primarily focused on software
testing, with little attention given to other topics, such as software
engineering management. The most commonly studied technology for techniques and
tools is Qiskit, although, in most studies, either multiple or none specific
technologies were employed. The researchers most interested in QSE are
interconnected through direct collaborations, and several strong collaboration
clusters have been identified. Most articles in QSE have been published in
non-thematic venues, with a preference for conferences.
Conclusions. The study's implications are providing a centralized source of
information for researchers and practitioners in the field, facilitating
knowledge transfer, and contributing to the advancement and growth of QSE
Spatial extension of dark subhalos as seen by Fermi-LAT and the implications for WIMP constraints
Spatial extension has been hailed as a "smoking gun"in the gamma-ray search of dark galactic subhalos, which would appear as unidentified sources for gamma-ray telescopes. In this work, we study the sensitivity of the Fermi-LAT to extended subhalos using simulated data based on a realistic sky model. We simulate spatial templates for a set of representative subhalos, whose parameters were derived from our previous work with N-body cosmological simulation data. We find that detecting an extended subhalo and finding an unequivocal signal of angular extension requires, respectively, a flux 2 to 10 times larger than in the case of a pointlike source. By studying a large grid of models, where parameters such as the WIMP mass, annihilation channel, or subhalo model are varied significantly, we obtain the response of the LAT as a function of the product of annihilation cross-section times the J factor. Indeed, we show that spatial extension can be used as an additional "filter"to reject subhalos candidates among the pool of unidentified LAT sources, as well as a smoking gun for positive identification. For instance, typical angular extensions of a few tenths of a degree are expected for the considered scenarios. Finally, we also study the impact of the obtained LAT sensitivity to such extended subhalos on the achievable dark matter constraints, which are a few times less constraining than comparable point-source limit
Quantify resilience enhancement of UTS through exploiting connect community and internet of everything emerging technologies
This work aims at investigating and quantifying the Urban Transport System
(UTS) resilience enhancement enabled by the adoption of emerging technology
such as Internet of Everything (IoE) and the new trend of the Connected
Community (CC). A conceptual extension of Functional Resonance Analysis Method
(FRAM) and its formalization have been proposed and used to model UTS
complexity. The scope is to identify the system functions and their
interdependencies with a particular focus on those that have a relation and
impact on people and communities. Network analysis techniques have been applied
to the FRAM model to identify and estimate the most critical community-related
functions. The notion of Variability Rate (VR) has been defined as the amount
of output variability generated by an upstream function that can be
tolerated/absorbed by a downstream function, without significantly increasing
of its subsequent output variability. A fuzzy based quantification of the VR on
expert judgment has been developed when quantitative data are not available.
Our approach has been applied to a critical scenario (water bomb/flash
flooding) considering two cases: when UTS has CC and IoE implemented or not.
The results show a remarkable VR enhancement if CC and IoE are deploye
Which scenarios reflect innovation at the Brazilian university?
Innovation is the result of complex, dynamic relationships. As Science and Technology Institutions in universities are part of the National Innovation System, generating knowledge through Teaching, Research, and Extension and Innovation, our aim is to present the current innovation scenarios in the Brazilian university. Therefore, a qualitative/descriptive study is conducted after a literature review and analysis of documents of public domain. Considering the university hybridism and a timid emergence of new helices contemplating community and environmental sustainability, the findings show that there is a need for increasing approximation between university, companies, governments, communities and environmental issues in order to transfer research, development, innovation and technology to the productive sector and to a sustainable life
Reliability Abstracts and Technical Reviews January-December 1968
No abstract availabl
- …