Digital twins: a survey on enabling technologies, challenges, trends and future prospects

Digital Twin (DT) is an emerging technology surrounded by many promises, and potentials to reshape the future of industries and society overall. A DT is a system-of-systems which goes far beyond the traditional computer-based simulations and analysis. It is a replication of all the elements, processes, dynamics, and firmware of a physical system into a digital counterpart. The two systems (physical and digital) exist side by side, sharing all the inputs and operations using real-time data communications and information transfer. With the incorporation of Internet of Things (IoT), Artificial Intelligence (AI), 3D models, next generation mobile communications (5G/6G), Augmented Reality (AR), Virtual Reality (VR), distributed computing, Transfer Learning (TL), and electronic sensors, the digital/virtual counterpart of the real-world system is able to provide seamless monitoring, analysis, evaluation and predictions. The DT offers a platform for the testing and analysing of complex systems, which would be impossible in traditional simulations and modular evaluations. However, the development of this technology faces many challenges including the complexities in effective communication and data accumulation, data unavailability to train Machine Learning (ML) models, lack of processing power to support high fidelity twins, the high need for interdisciplinary collaboration, and the absence of standardized development methodologies and validation measures. Being in the early stages of development, DTs lack sufficient documentation. In this context, this survey paper aims to cover the important aspects in realization of the technology. The key enabling technologies, challenges and prospects of DTs are highlighted. The paper provides a deep insight into the technology, lists design goals and objectives, highlights design challenges and limitations across industries, discusses research and commercial developments, provides its applications and use cases, offers case studies in industry, infrastructure and healthcare, lists main service providers and stakeholders, and covers developments to date, as well as viable research dimensions for future developments in DTs

Women's business ownership : a review of the academic, popular and internet literature

The objective of this review is to present a detailed analysis of the research and popular literature on women entrepreneurs. The review includes an appraisal of the academic research, the popular literature and Internet based information sources

U.S. Commission on Immigration Reform

The U.S. Commission on Immigration Reform was created by Congress to assess U.S. immigration policy and make recommendations regarding its implementation and effects. Mandated in the Immigration Act of 1990 to submit an interim report in 1994 and a final report in 1997, the Commission has undertaken public hearings, fact-finding missions, and expert consultations to identify the major immigration-related issues facing the United States today.LBJ School of Public Affair

Energy Efficiency Technologies for Central and Eastern Europe

This report focuses on the improvement of energy efficiency. It reviews how energy is used in the former centrally planned economies. Then it analyzes the potential effectiveness of modern technology in reducing energy waste and the factors that constrain improvements. The report also examines government programs assisting energy efficiency technology transfer and opportunities for U.S. businesses. Finally, it discusses congressional policy options to support technology transfer

Global Arms Trade: Commerce in Advanced Military Technology and Weapons

This report, the final product of OTA’s assessment on international collaboration in defense technology, explores the form and dynamics of the international defense industry, the intricacies of technology transfer and equipment sales, and the implications for U.S. policy

Scholarly Communication Librarianship and Open Knowledge

The intersection of scholarly communication librarianship and open education offers a unique opportunity to expand knowledge of scholarly communication topics in both education and practice. Open resources can address the gap in teaching timely and critical scholarly communication topics—copyright in teaching and research environments, academic publishing, emerging modes of scholarship, impact measurement—while increasing access to resources and equitable participation in education and scholarly communication. Scholarly Communication Librarianship and Open Knowledge is an open textbook and practitioner’s guide that collects theory, practice, and case studies from nearly 80 experts in scholarly communication and open education. Divided into three parts: *What is Scholarly Communication? *Scholarly Communication and Open Culture *Voices from the Field: Perspectives, Intersections, and Case Studies The book delves into the economic, social, policy, and legal aspects of scholarly communication as well as open access, open data, open education, and open science and infrastructure. Practitioners provide insight into the relationship between university presses and academic libraries, defining collection development as operational scholarly communication, and promotion and tenure and the challenge for open access. Scholarly Communication Librarianship and Open Knowledge is a thorough guide meant to increase instruction on scholarly communication and open education issues and practices so library workers can continue to meet the changing needs of students and faculty. It is also a political statement about the future to which we aspire and a challenge to the industrial, commercial, capitalistic tendencies encroaching on higher education. Students, readers, educators, and adaptors of this resource can find and embrace these themes throughout the text and embody them in their work

Looking BK and Moving FD: Toward a Sociocultural Lens on Learning with Programmable Media

Part of the Volume on Digital Young, Innovation, and the Unexpected This chapter is a look back at ideas about programming as a form of digital media for learning in the mid-1990s to help realize more of the potential of these tools in the future. It presents a close examination of the work of children who became fluent in programming animations, games, and interactive stories using MicroWorlds Logo. A vignette from the creation of a movie remix by African American girls in a culturally relevant school is analyzed. Their work supports a constructionist perspective that children can learn both programming and other subject-matter ideas through creating personally meaningful projects with programmable media. Unexpected from this view is that the children brought practices from living culturally to define and produce their project and that these cultural practices were integral to their learning. Implications are outlined for educators, policy makers, and researchers to use views of culture in learning with programmable media to connect more children to the benefits of these media

Brigham-Kanner Property Rights Conference Journal, Volume 1

Comparative Property Rights October 14-15, 2011 Panel 1: Legal Protection of Property Rights: A Comparative Look Panel 2: Reflections on Justice O\u27Connor\u27s Important Property Rights Decisions Panel 3: Property as an Instrument of Social Policy Panel 4: Culture and Property Panel 5: Property as an Economic Institution Panel 6: Property Rights and the Environmenthttps://scholarship.law.wm.edu/propertyjournal/1001/thumbnail.jp