78,197 research outputs found

    The potential of additive manufacturing in the smart factory industrial 4.0: A review

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    Additive manufacturing (AM) or three-dimensional (3D) printing has introduced a novel production method in design, manufacturing, and distribution to end-users. This technology has provided great freedom in design for creating complex components, highly customizable products, and efficient waste minimization. The last industrial revolution, namely industry 4.0, employs the integration of smart manufacturing systems and developed information technologies. Accordingly, AM plays a principal role in industry 4.0 thanks to numerous benefits, such as time and material saving, rapid prototyping, high efficiency, and decentralized production methods. This review paper is to organize a comprehensive study on AM technology and present the latest achievements and industrial applications. Besides that, this paper investigates the sustainability dimensions of the AM process and the added values in economic, social, and environment sections. Finally, the paper concludes by pointing out the future trend of AM in technology, applications, and materials aspects that have the potential to come up with new ideas for the future of AM explorations

    Energy and Smart Growth: It's about How and Where We Build

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    By efficiently locating development, smarter growth land use policies and practices offer a viable way to reduce U.S. energy consumption. Moreover, by increasing attention on how we build, in addition to where we build, smart growth could become even more energy smart. The smart growth and energy efficiency movements thus are intrinsically linked, yet these two fields have mostly operated in separate worlds. Through greater use of energy efficient design, and renewable energy resources, the smart growth movement could better achieve its goals of environmental protection, economic security and prosperity, and community livability. In short, green building and smart growth should go hand in hand. Heightened concern about foreign oil dependence, climate change, and other ill effects of fossil fuel usage makes the energy-smart growth collaboration especially important. Strengthening this collaboration will involve overcoming some hurdles, however, and funders can play an important role in assisting these movements to gain strength from each other. This paper contends there is much to be gained by expanding the smart growth movement to include greater attention on energy. It provides a brief background on current energy trends and programs, relevant to smart growth. It then presents a framework for understanding the connections between energy and land use which focuses on two primary issues: how to build, which involves neighborhood and building design, and where to build, meaning that location matters. The final section offers suggestions to funders interesting in helping accelerate the merger of these fields

    Review of Literature and Curricula in Smart Supply Chain & Transportation

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    This study provides a review of existing smart supply chain management (SCM) literature and current course offerings in order to identify unexplored implications of smart SCM. Specifically, the study focuses on curricula within the state of California to derive potential opportunities for the relevant practitioners in the Bay Area. In addition, the study further extends curriculum review to other well-recognized SCM programs around the U.S. By exploring current relevant course offerings from different academic institutions for higher education (i.e., universities), this research aims to deliver general ideas useful to knowledge practitioners in fields concerning SCM. Finally, the research illustrates a conceptual framework aimed at fostering familiarity with the necessary research topics for the evolving smart SCM

    It's About How and Where We Build: Connecting Energy and Smart Growth

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    In recent years, energy issues have become a growing concern for Americans. Largely missing from present energy discussions, however, is the role that land-use practices have on energy consumption and the use of alternative energy resources. By efficiently locating development, we can reduce the amount of energy needed for transportation and for other infrastructure as compared with spread-out, suburban development. Moreover, by including greater use of energy efficient design, these "smart growth" land-use practices could become even smarter -- and better achieve their goals of environmental protection, economic prosperity, and community livability. The smart growth land-use and energy efficiency movements are intrinsically linked, yet these two fields have mostly operated in separate worlds. Greater coordination between these two professions is warranted, yet substantial barriers exist. A recent survey reveals that planners' technical knowledge of energy issues is limited, as is their inclusion of energy factors in comprehensive planning, zoning, and development review. Heightened concern about foreign oil dependence, climate change, and the other ill effects of fossil fuel usage makes the energy-land-use collaboration especially important. Recently, there have been some hopeful signs of collaboration between energy professionals and community developers

    Low Carbon Land Use: Paris, Pittsburgh, and the IPCC

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    This article describes strategies that local governments are employing to both mitigate and adapt to climate change, using their state-given powers to plan community development and to regulate private building. Local governments have significant legal authority to shape human settlements and, in so doing, lower CO2 emissions from buildings and vehicles, increase the sequestration of carbon by the natural environment, and promote distributed energy systems and renewable energy facilities that lower fossil fuel consumption. Local elected leaders are highly motivated to avoid the on-the-ground consequences of our changing climate. The effects of climate change manifest themselves at the local level, where people are killed or injured, property is destroyed, businesses are shuttered, ecosystems are fouled, and where our democratic system is most vibrant and able to respond. In 2014, the international community caught up with local governments in the global race against climate change. That year the Intergovernmental Panel on Climate Change embraced the critical role of municipal governments in mitigating the causes of climate change. In 2015, the Paris Climate Agreement adopted by the Conference of the Parties followed suit. This has encouraged localities to redouble their efforts and creates new and exciting opportunities for intergovernmental partnerships to manage climate change

    Housing and Mobility Toolkit for San Mateo County

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    Since the end of the Great Recession, San Mateo County has attracted new workers at a record rate without building anywhere near enough housing. This jobs-housing imbalance drives the cost of housing up and forces many moderate and lower-income employees and their families out of the County. A lack of access to quality affordable housing in the County and the entire Bay Area along with limited transportation options means that an increased number of employees drive in and out of the County every workday. The resultant congestion, gridlock, and long commutes along with other negative environmental, social, and economic impacts create a major concern for communities in the County and beyond. Clearly, this problem has two distinct but interrelated dimensions: housing development and transportation planning. A select group of Mineta Transportation Institute (MTI) Research Associates worked closely with representatives from the San Mateo County Home for All initiative to help address this challenge by developing a toolkit of successful case studies with a holistic approach to housing development and transportation planning

    Taking the High Road: Protecting Open Space Along America's Highways

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    Examines the environmental impacts of road construction and the spiraling of land prices along new roads, and promotes best practices for linking land use and road construction. Includes success stories and recommendations for policymakers
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