21,679 research outputs found

    Small Satellite Industrial Base Study: Foundational Findings

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    This report documents findings from a Small Satellite (SmallSat) Industrial Base Study conducted by The Aerospace Corporation between November 2018 and September 2019. The primary objectives of this study were a) to gain a better understanding of the SmallSat communitys technical practices, engineering approaches, requirements flow-downs, and common processes and b) identify insights and recommendations for how the government can further capitalize on the strengths and capabilities of SmallSat offerings. In the context of this study, SmallSats are understood to weigh no more than 500 kg, as described in State of the Art Small Spacecraft Technology, NASA/TP-2018- 220027, December 2018. CubeSats were excluded from this study to avoid overlap and duplication of recently completed work or other studies already under way. The team also touched on differences between traditional space-grade and the emerging mid-grade and other non-space, alternate-grade EEEE (electrical, electronic, electromechanical, electro-optical) piece part categories. Finally, the participants sought to understand the potential effects of increased use of alternate-grade parts on the traditional space-grade industrial base. The study team was keenly aware that there are missions for which non-space grade parts currently are infeasible for the foreseeable future. National security, long-duration and high-reliability missions intolerant of risk are a few examples. The team sought to identify benefits of alternative parts and approaches that can be harnessed by the government to achieve greater efficiencies and capabilities without impacting mission success

    A review of stencil printing for microelectronic packaging

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    PurposeThe purpose of this paper is to present a detailed overview of the current stencil printing process for microelectronic packaging.Design/methodology/approachThis paper gives a thorough review of stencil printing for electronic packaging including the current state of the art.FindingsThis article explains the different stencil technologies and printing materials. It then examines the various factors that determine the outcome of a successful printing process, including printing parameters, materials, apparatus and squeegees. Relevant technical innovations in the art of stencil printing for microelectronics packaging are examined as each part of the printing process is explained.Originality/valueStencil printing is currently the cheapest and highest throughput technique to create the mechanical and electrically conductive connections between substrates, bare die, packaged chips and discrete components. As a result, this process is used extensively in the electronic packaging industry and therefore such a review paper should be of interest to a large selection of the electronics interconnect and assembly community.</jats:sec

    Is China Systematically Buying Up Key Technologies? Chinese M & A transactions in Germany in the context of “Made in China 2025”. Bertelsmann Stiftung GED Study 2018

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    “Made in China 2025” (MIC 2025) is the Chinese central government’s main industrial policy strategy aimed at turning China into the global leader of the fourth industrial revolution. Chinese M & A transactions abroad explicitly belong to the instruments for implementing MIC 2025. Germany is an attractive location for Chinese M & A transactions and offers tailor-made know-how for MIC 2025 due to its large number of “hidden champions”, i. e. technological world market leaders in highly specialized niches. 64 percent or 112 of the 175 analyzed Chinese M & A transactions with a share of at least ten percent in German companies between 2014 and 2017 percent can be assigned to one of the ten key sectors in which China aims to assume global technology leadership with the help of MIC 2025. On the one hand, there is a clear focus on the MIC 2025 sectors of “energy-saving and new-energy vehicles”, “electrical equipment” and “high-end numerical control machinery and robotics” – i. e. sectors in which Germany can in part demonstrate significant competitive technological advantages. Even before the introduction of MIC 2025 in 2015, however, these sectors were already a focus of interest for Chinese investors in Germany. On the other hand, key sectors that played little or no role for Chinese M & A transactions in Germany have also become increasingly important since the introduction of MIC 2025. This is particularly evident in the MIC 2025 sector of “biomedicine and high-performance medical devices”. The majority of the 112 Chinese M & A transactions (just under 60 percent) that are relevant for MIC 2025 are distributed across only three German states: Baden-Württemberg (26), North Rhine-Westphalia (22) and Bavaria (18) – the very regions in which the majority of the German “hidden champions” are located. State-owned investors make up 18 percent of the Chinese M & A transactions examined, and are therefore a minority. However, taking into account only the M & A transactions that can be assigned to the MIC 2025 sectors, their share rises to around 22 percent – a possible indication of state stakeholders’ greater interest in acquiring know-how abroad for the implementation of MIC 2025. However, the formal type of ownership of Chinese companies does not show the full picture of potential state influence due to the complex interplay between the state and companies in China. Therefore, the great challenge for Germany consists in the forms of state influence that are not or only insufficiently reflected in the majority ownership type of Chinese investors

    The Jet Propulsion Laboratory Electric and Hybrid Vehicle System Research and Development Project, 1977-1984: A Review

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    The JPL Electric and Hybrid Vehicle System Research and Development Project was established in the spring of 1977. Originally administered by the Energy Research and Development Administration (ERDA) and later by the Electric and Hybrid Vehicle Division of the U.S. Department of Energy (DOE), the overall Program objective was to decrease this nation's dependence on foreign petroleum sources by developing the technologies and incentives necessary to bring electric and hybrid vehicles successfully into the marketplace. The ERDA/DOE Program structure was divided into two major elements: (1) technology research and system development and (2) field demonstration and market development. The Jet Propulsion Laboratory (JPL) has been one of several field centers supporting the former Program element. In that capacity, the specific historical areas of responsibility have been: (1) Vehicle system developments (2) System integration and test (3) Supporting subsystem development (4) System assessments (5) Simulation tool development

    A Case Study Of E-Supply Chain & Business Process Reengineering Of A Semiconductor Company In Malaysia

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    Penglibatan e-perniagaan dalam rantaian bekalan telah mewujudkan e-rantaian bekalan yang baru (e-SC) di firma-firma tempatan dan global. Due to globalization and advancement in information technology (IT), companies adopt best practices in e-business and supply chain management to be globally competitive as both are realities and prospects in 21st century

    Competitiveness of Indian Manufacturing: Finding of the 2001 National Manufacturing Survey

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    In this paper we present findings of the second national survey on the competitiveness of Indian manufacturing. The paper develops hypotheses on the competitiveness of firms in the manufacturing sector and addresses some key questions on the characteristics of world class firms in India. We analyze the processes and practices that such firms have adopted to become world class. More important, we highlight firm level practices that are preventing Indian firms from becoming globally competitive. The findings point towards three distinct aspects of manufacturing management that define the capabilities of the firm, i.e., strategies related to dynamic control of shop floors, network linkages and innovation. It is found that firms that build distinctive technological and managerial capabilities in these domains are able to compete globally. The paper provides a comparison with manufacturing capabilities of competitors in China and draws lessons for organizing large scale manufacturing. It also provides an assessment of the changes that have happened in manufacturing priorities and strategies in India since our last survey that was conducted in 1997 and highlights the implications of these changes.

    Ancient and historical systems

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    Ghent University-Department of Textiles: annual report 2013

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