1,721,416 research outputs found
Second Generation of Freescoo Solar DEC Prototypes for Residential Applications
No full textFreescoo is an innovative all-in-one compact solar Desiccant Evaporative Cooling (DEC) air conditioner concept. Results of the first prototype developed were presented at SHC Conference last year. Now a second generation of freescoo prototypes for applications in residential and small office buildings have been installed in Italy at ENEA Casaccia and at UNIPA. The thermodynamic cycle is based on the use of fixed and cooled adsorption beds and advanced evaporative cooling concepts. The adsorption bed, which is a fin and tube heat exchanger packed with silica gel grains, allows simultaneous dehumidification and cooling of the process air. The indirect evaporative cooling process, operated downstream to the dehumidification, is realized usingan optimized configuration with two wet plate heat exchangers connected in series. Low wet bulb temperatures reached on the secondary flow, allow supply air temperatures to the room below 20 °C. Systems are designed also for stand-alone operation thanks to a battery accumulator and PV cells installed. No auxiliary device is used for cold production. The main features of the second generation prototype system are first discussed, as well as some optimizations carried out from the first to the second generation prototype. Results are related both to field monitoring data. Performance indicators such EER and thermal COP, maximum cooling power achieved, stand alone operation data and control issues are presented and discussed. © 2015 The Authors. Published by Elsevier Ltd
B Virus -- 1955-58 -- Correspondence, General -- letter, 1958-05-15
No full textLetter from Calabrese, A. D. to Sabin, Albert B. dated 1958-05-15.Sabin Collection Fair Use Policy</a
Vicende climatiche e vicende umane nel Salento. Dal manoscritto di un Anonimo "Discorso dell'Anno calamitoso Mille settecento venti sette".
No full textCommunication Rights and Global Justice: Reflections on transnational mobilizations
No full textThe present volume offers historical perspectives on social mobilizations related to communication, information and culture as human rights (part I and II) in order to put contemporary mobilizations (part III) in perspective. It does so through an intergenerational and multi-vocal dialogue: different generations of scholars, activists and practitioners who have been engaged with mobilizations at different times, present their views; some adopting a more academic style, others reflecting autobiographically on personal experiences. In line with recent analyses that reflect awareness of the global dimension of contemporary social mobilizations around communication, the book aims at showing that locally-grounded mobilizations have been active in different geographical and cultural contexts for a long time: by moving beyond the prominent focus on the North American context that can be found in most studies in the field, the book aims at acknowledging the plural geo-cultural roots that compose what have in recent years become transnational mobilizations (part II on regional roots of mobilizations). Finally, the book intends to clarify the language and conceptual frames that accompany mobilizations also by positioning historically aware contributions in the transformed context in which mobilizations occur today - global, digitally mediated, multi-actors transnational policy making – and reflecting on new and transformed challenges (section III)
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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