521 research outputs found

    Characterization of flow rate and Heat Loss in Heating, Ventilation and Air Conditioning (HVAC) Duct System for Office Building

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    A building is an assemblage that is firmly attached to the ground and provides the performance of human activities and need to be considered in the daily operation in that building. The improvements in building performance are focused on improving the energy efficiency of buildings. This is approach by designing heating, ventilation and air conditioning (HVAC) duct system due to one of the most utilized energy in maintaining building performance and environment. The objectives of this research is to calculate the air (CFM) supply in office building, to characterize the velocity and head loss in a round and rectangular HVAC ducting system at various duct thickness and to optimize the thickness of the duct in HVAC system according to ASHRAE Standard. The increasing of velocity in duct system shows the increasing of head loss. The round duct design gives the lowest velocity and head loss in HVAC system approximately around 9.35% as compared to rectangular duct at 0.06 inches thickness. Hence, the trends of the head loss and duct thickness has influenced in reducing noise in HVAC duct system in order to select the best design concepts which is round shape design

    Digitization to Support Generations of Refugees: How Can IS Research and Researchers Make a Difference?

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    In recent years, a new refugee crisis has been sweeping the world due to the continuous violence in different places and countries. These developments have caused unexpected challenges on different levels, ranging from individuals (including migrants and refugees and hosting populations) to organizations, countries, and continents (including those fleeing violence and hosting countries of fleeing individuals). Despite the urgency and the potential risks associated with the current refugee situation, relatively little work has been carried out by IS researchers on how to find the intersection between this societal topic and the use of technology to alleviate this crisis. The outcomes of the panel have implications for both academia and practice. We would like to uncover the beneficial use of digital transformation solutions that could help and empower refugees and host communities using the bright side of existing technologies in integrating refugees into society

    Socializing accountability for improving primary healthcare: an action research program in rural Karnataka

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    The Alma Ata Declaration of 1978 invoked a socialising form of accountability through which communities and health workers participated in and were jointly accountable for primary healthcare. Aside from a few experiments, by the 1990s these ideals were quickly replaced by policy prescriptions based on increasing efficiency in data quality and reporting through the introduction of health information systems. More recently, there has been a revival of interest in community participation as a mechanism for improving the poor status of primary healthcare in developing countries through the constitution of village health committees. This paper documents and reflects on nine years of research on interventions aimed at improving primary healthcare accountability in rural Karnataka. Over this period, our focus has shifted from studying how computerised health information systems can strengthen conventional accountability systems to a period of extended participatory action research aimed at socialising accountability practices at village level. The findings from this study constitute vital knowledge for reforming the primary healthcare sector through different policy measures including the design of appropriate technology-based solutions
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