6,814 research outputs found

    Waste Reduction, Construction and Demolition Debris: Guide for Building, Construction and Environmental Professionals, Revised November 2008

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    This document is intended to lay the foundation for resource reduction strategies in new construction, renovation and demolition. If you have an innovative idea or information that you believe should be included in future updates of this manual please email Shelly Codner at [email protected] or Jan Loyson at [email protected]. Throughout this manual, we use the term “waste reduction” to define waste management initiatives that will result in less waste going to the landfill. In accordance with the waste management hierarchy these practices include reducing (waste prevention), reusing (deconstruction and salvage), recycling and renewing (making old things new again) - in that order. This manual will explain what these practices are and how to incorporate them into your projects

    Quality assessment technique for ubiquitous software and middleware

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    The new paradigm of computing or information systems is ubiquitous computing systems. The technology-oriented issues of ubiquitous computing systems have made researchers pay much attention to the feasibility study of the technologies rather than building quality assurance indices or guidelines. In this context, measuring quality is the key to developing high-quality ubiquitous computing products. For this reason, various quality models have been defined, adopted and enhanced over the years, for example, the need for one recognised standard quality model (ISO/IEC 9126) is the result of a consensus for a software quality model on three levels: characteristics, sub-characteristics, and metrics. However, it is very much unlikely that this scheme will be directly applicable to ubiquitous computing environments which are considerably different to conventional software, trailing a big concern which is being given to reformulate existing methods, and especially to elaborate new assessment techniques for ubiquitous computing environments. This paper selects appropriate quality characteristics for the ubiquitous computing environment, which can be used as the quality target for both ubiquitous computing product evaluation processes ad development processes. Further, each of the quality characteristics has been expanded with evaluation questions and metrics, in some cases with measures. In addition, this quality model has been applied to the industrial setting of the ubiquitous computing environment. These have revealed that while the approach was sound, there are some parts to be more developed in the future

    Surface MIMO: Using Conductive Surfaces For MIMO Between Small Devices

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    As connected devices continue to decrease in size, we explore the idea of leveraging everyday surfaces such as tabletops and walls to augment the wireless capabilities of devices. Specifically, we introduce Surface MIMO, a technique that enables MIMO communication between small devices via surfaces coated with conductive paint or covered with conductive cloth. These surfaces act as an additional spatial path that enables MIMO capabilities without increasing the physical size of the devices themselves. We provide an extensive characterization of these surfaces that reveal their effect on the propagation of EM waves. Our evaluation shows that we can enable additional spatial streams using the conductive surface and achieve average throughput gains of 2.6-3x for small devices. Finally, we also leverage the wideband characteristics of these conductive surfaces to demonstrate the first Gbps surface communication system that can directly transfer bits through the surface at up to 1.3 Gbps.Comment: MobiCom '1

    Semantic multimedia remote display for mobile thin clients

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    Current remote display technologies for mobile thin clients convert practically all types of graphical content into sequences of images rendered by the client. Consequently, important information concerning the content semantics is lost. The present paper goes beyond this bottleneck by developing a semantic multimedia remote display. The principle consists of representing the graphical content as a real-time interactive multimedia scene graph. The underlying architecture features novel components for scene-graph creation and management, as well as for user interactivity handling. The experimental setup considers the Linux X windows system and BiFS/LASeR multimedia scene technologies on the server and client sides, respectively. The implemented solution was benchmarked against currently deployed solutions (VNC and Microsoft-RDP), by considering text editing and WWW browsing applications. The quantitative assessments demonstrate: (1) visual quality expressed by seven objective metrics, e.g., PSNR values between 30 and 42 dB or SSIM values larger than 0.9999; (2) downlink bandwidth gain factors ranging from 2 to 60; (3) real-time user event management expressed by network round-trip time reduction by factors of 4-6 and by uplink bandwidth gain factors from 3 to 10; (4) feasible CPU activity, larger than in the RDP case but reduced by a factor of 1.5 with respect to the VNC-HEXTILE

    Wireless Handheld Solution for the Gaming Industry

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    of the essential elements of success in the gaming industry is the requirement of providing exceptional customer service. Technology plays a significant role in bringing state of the art solutions that enhance the overall customer experience. Currently a guest must go through multiple steps and a variety of departments to simply resolve issues with their player accounts (loyalty programs), update customer profiles, book hotel and restaurant reservations, sign up for promotions, etc. In order to effectively take care of these customers in both a timely and efficient manner, a wireless handheld device is needed that employees can carry with them to resolve and address these concerns. This project is aimed at identifying the proper wireless infrastructure for the gaming environment and also the wireless handheld device, such as an Ultra Mobile PC (UMPC) to effectively and efficiently take care of customers

    M-health review: joining up healthcare in a wireless world

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    In recent years, there has been a huge increase in the use of information and communication technologies (ICT) to deliver health and social care. This trend is bound to continue as providers (whether public or private) strive to deliver better care to more people under conditions of severe budgetary constraint

    Pandemic Policy Preparedness: Unintentional Student Discrimination in the Wake of COVID-19

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    Educational leadership requires a set of skills and practices that are shaped by professional ethics. Professional ethics are the dynamics of both personal and professional ethics and requires educational leaders to understand how these ethical codes drive interactions and decisions especially in difficult situations (Shapiro & Stefkovich, 2016). Anderson (2014) argues that educational leaders may not have the deeper understanding of social justice necessary to “better scholarship, but also to better practice” (pp. x) due to the current expectations of leaders including increasing test scores and accountability ratings and addressing social and emotional learning. Adding to the current expectations of school leaders are unparalleled situations such as Coronavirus Disease 2019 (COVID-19), a fast spreading, communicable disease. On March 11, 2020, the World Health Organization declared COVID-19 a global pandemic and with growing cases in the United States, unprecedented closures resulted. The U. S. Department of Education (2020) communicated that even during this time, districts must be “mindful of the requirements of Section 504, Title II, and Title VI, to ensure that all students are able to study and learn in an environment that is safe and free from discrimination” (p. 1). Legislative policy is also enacted as a result of the health crisis. On March 27, 2020, the United States Congress passed the Coronavirus Aid, Relief, and Economic Security (CARES) Act which provides an economic relief plan and educational provisions for public and private schools. Indefinite school closures have left some school districts unprepared to manage the necessary provisions to provide an equitable education for all students. As learning hubs were launched for at-home learning guided by parents and students, accommodations for English Learners (EL), students with disabilities, and students receiving Special Education services were not on the forefront of the design in every district, potentially providing larger gaps in learning. The launch of online at-home learning also requires internet access and devices to even access the learning, providing another potential inequitable gap, especially in low socioeconomic households. This necessary response to COVID-19 placed a burden on parents who may be working from home, or not at home, or not capable of assisting with the level of instruction their child requires to replace the daily instruction of a classroom teacher. The purpose of this paper will be to evaluate State of Texas local school board policies FB (LEGAL) and FB (Local) Equal Education Opportunity in the wake of the World Health Organization declaration of coronavirus disease 2019 (COVID-19) as a pandemic and the resulting actions of school closures. We will investigate the potential discrimination under Section 504, Title II, and Title VI during an unprecedented time of transitioning from learning at school to learning at home is reasonable to ensure that educational opportunities are equitable. The need to understand how such a pandemic closure impacts the teaching and learning of all students is essential to policy change for educational leaders in the way of a new reality of learning and lesson delivery during a time of a global pandemic

    A review of activity trackers for senior citizens: research perspectives, commercial landscape and the role of the insurance industry

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    The objective assessment of physical activity levels through wearable inertial-based motion detectors for the automatic, continuous and long-term monitoring of people in free-living environments is a well-known research area in the literature. However, their application to older adults can present particular constraints. This paper reviews the adoption of wearable devices in senior citizens by describing various researches for monitoring physical activity indicators, such as energy expenditure, posture transitions, activity classification, fall detection and prediction, gait and balance analysis, also by adopting consumer-grade fitness trackers with the associated limitations regarding acceptability. This review also describes and compares existing commercial products encompassing activity trackers tailored for older adults, thus providing a comprehensive outlook of the status of commercially available motion tracking systems. Finally, the impact of wearable devices on life and health insurance companies, with a description of the potential benefits for the industry and the wearables market, was analyzed as an example of the potential emerging market drivers for such technology in the future
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