25 research outputs found

    Smartphone Start-ups: Navigating the iPhone Revolution

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    This book provides detailed examination of start-up companies which entered the smartphone industry following the revolution triggered by Apple with its iPhone in 2007. Analytical case studies explore the rationale behind the business models, financing cycles, and factors that helped start-ups sustain their own growth and survival. By studying these companies through the lens of entrepreneurship and competitor analysis, the author investigates not only the opportunities that can arise from technological evolution, but also the uncertainty that has developed surrounding the industry's future. Topics covered include value proposition development, evaluation of the effectiveness of business models, and market competition analysis, unveiling thought-provoking results about this rapidly changing industry. Scholars of entrepreneurship, business strategy and innovation management will find this timely book a valuable contribution to the field

    Syn-eruptive hydration of volcanic ash records pyroclast-water interaction in explosive eruptions

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    © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Hudak, M. R., Bindeman, I. N., Loewen, M. W., & Giachetti, T. Syn-eruptive hydration of volcanic ash records pyroclast-water interaction in explosive eruptions. Geophysical Research Letters, 48(23), (2021): e2021GL094141, https://doi.org/10.1029/2021GL094141.Magma-water interaction can dramatically influence the explosivity of volcanic eruptions. However, syn- and post-eruptive diffusion of external (non-magmatic) water into volcanic glass remains poorly constrained and may bias interpretation of water in juvenile products. Hydrogen isotopes in ash from the 2009 eruption of Redoubt Volcano, Alaska, record syn-eruptive hydration by vaporized glacial meltwater. Both ash aggregation and hydration occurred in the wettest regions of the plume, which resulted in the removal and deposition of the most hydrated ash in proximal areas 400°C) are more important than the cooling rate in facilitating hydration. These observations suggest that syn-eruptive glass hydration occurred where meltwater was entrained at high temperature, in the plume margins near the vent. Ash in the drier plume interior remained insulated from entrained meltwater until it cooled sufficiently to avoid significant hydration.This work was supported by a Geological Society of America Bruce L. "Biff" Reed Scholarship Award and NSF Grant EAR 1822977.2022-05-1

    Riflessioni a margine di una proposta di legge sulla liberazione anticipata

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    The author examines the bill AC 552 presented by MP Giachetti on the subject of early releases. In particular, he addresses the critical issues of the proposal, both theoretical and practical, in order to contribute to the elimination or correction of its systematic defects

    Utilizando un enfoque dirigido por modelos, realizar un análisis y diseño de un sistema de gestión basado en BarBocca Pub & Restaurant

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    Tesis (Ingeniería Civil en Computación e Informática)Resumen Para este proyecto de titulo se realizará un análisis y diseño de un sistema de gestión para la empresa BarBocca Pub&Restaurant, en el cual se utilizará una metodología Model-Dri ven, donde se desarrolla el sistema 1 00% de manera automática. Se plantean como objetivos la creación íntegramente del sistema bajo el enfoque Model- Driven. Además de la integración de nuevos patrones al desarrollo de Software conocidos normalmente. La integración de modelos de procesos de negocio a los casos de uso para formar un correcto y completo modelo de requisitos. Para esto la metodología utilizada es Model-Driven Architecture en conjunto con una metodología basada en prototipos DSDM. Las que en conjunto logran satisfacer todo el proyecto y cumplir con los objetivos. Después de realizar cuatro prototipos funcionales, se logra llegar al sistema final, el que cumple con todos los requisitos solicitados por el cliente, además de generar el producto final 100% automáticamente a partir de un modelo conceptual bien realizado

    Advanced interaction paradigms to define smart visit experiences in the internet of things era

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    The growing spread of smart objects is changing the way humans interact with technologies since the interaction they propose is more and more physical and less virtual. From an HCI perspective, one of the most interesting aspects regards how non-technical end users can program the behavior of such smart objects. This poster presents an ongoing project on three novel interaction paradigms that support the creation of smart visit experiences. Copyright is held by the author/owner(s)

    Valuation of capabilities and system architectural options to meet affordability requirement

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    Disclaimer: The views represented in this report are those of the author and do not reflect the official policy position of the Navy, the Department of Defense, or the federal government.Sponsored Report (for Acquisition Research Program)This research addresses the problem of how to (1) value architectural options that deliver capabilities to the warfighter not inherently measured in dollar values and (2) conduct a trade study of architectural options, the option’s cost, and the option’s risk to support the affordability mandate for a more effective and efficient acquisition decision-making process. The research models acquisition as a sequential decision process with an options framework but with two significant distinctions: First, it identifies and values system architectural options available in the system design, and not options on the project, and second, it measures capabilities in terms of mission effectiveness compatible with how defense managers think. Architectural options provide flexibility to deal with technical and operational uncertainty. The research contributes to the performance of trade studies in acquisition through the definition of architectural options in terms consistent with defense acquisition (capabilities and not cash flows) and a theory for how program managers can value the capabilities those options provide. The research is intended to support the evolutionary acquisition of system capabilities. As RADM Rowden (2014), the director of Surface Warfare stated, "We cannot afford to build ships that are retired because they have been outpaced by the threat; rather, they will need to be retired because they have reached the end of their service life. Defined interfaces and modular designs will treat capability as a commodity, enabling continuous modernization to stay one step ahead of the threat. These “designed-in” features will dramatically lower the complexity of modernizing ships, reducing the time spent in overhauls, increasing operational availability, and reducing total ownership cost."Approved for public release; distribution is unlimited.Naval Postgraduate School Acquisition Research Progra

    Mathematics in health care with applications

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    The Author aims to show how mathematics can be useful in supporting key activities in a hospital, including: noninvasive measurement of a patient’s status (see chapter 1), evaluation of quality of services (see chapter 2), business and clinical administration (see chapter 3), and diagnosis and prognosis (see chapter 4). Such applications suggest the development of innovative projects to improve health care processes, services and systems. In this way, mathematics can be a very important tool for technological and societal development

    Systems Engineering Perspective of the Cruise Industry

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    The maturation of the cruise industry has led to increased competition which demands more efficient operations. Systems engineering, a discipline that studies complex organizations of material, people, and information, is traditionally only applied in the manufacturing sector; however, it can make significant contributions to service industries such as the cruise industry. The author describes this type of engineering, explores how it can be applied to the cruise industry, and presents two case studies demonstrating applications to the cruise industry luggage delivery process and the information technology help desk process. The results show that this approach can make the processes more productive and enhance profitability for the cruise lines

    Advanced interaction paradigms to define smart visit experiences in the internet of things era

    No full text
    The growing spread of smart objects is changing the way humans interact with technologies since the interaction they propose is more and more physical and less virtual. From an HCI perspective, one of the most interesting aspects regards how non-technical end users can program the behavior of such smart objects. This poster presents an ongoing project on three novel interaction paradigms that support the creation of smart visit experiences. Copyright is held by the author/owner(s)

    RESILIENCE ASSESSMENT OF ISLANDED RENEWABLE ENERGY MICROGRIDS

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    The military’s installations on remote islands have the highest power costs and demand resilient and reliable power for mission assurance. These installations have no electrical connection to an external utility provider and encounter numerous challenges in incorporating renewable energy, and there is a pronounced gap in both defining resilience and measuring it for off-grid islanded microgrids at islanded naval installations (INIs). This work’s research objective was to develop a methodology to choose renewable energy microgrid designs that maximize resilience and minimize costs on remote islands with applications for INIs. The deliverable is a tool that incorporates the methodology to identify the cost of resilience using a measure that captures the area under the resilience curve. The tool uses the models developed in this research to create the resilience and cost trade-off curves for different microgrid design and maintenance options to enable decision makers to choose an optimal microgrid design primarily for remote islanded military installations like San Nicolas Island. The research concluded that resilience can be improved by using optimal power capacity ratios for a renewable energy microgrids, that redundancy improves resilience for less costs, and that more maintenance only improves resilience when the generation capacity is closer to the demand and for microgrids with less redundancy.Approved for public release. distribution is unlimitedCivilian, Department of the Nav
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