A 3-field earth-heat-exchange system for a school building in Imola, Italy: Monitoring results

The present study reports the results of a 12-month-long monitoring campaign of an earth-to-air horizontal heat exchanger (EAHX) system in a school complex in Imola, Italy. With more than 2kmof buried pipes, it represents one of the biggest Italian applications of this technology. Considerable differences between inlet and outlet air temperature have been noticed both in winter and in summer. Air temperature and relative humidity have been represented over a psychrometric chart while the energy performance of the system was analysed based on data of sensible heat exchange.The monitored results have been compared with three other cases presented in literature in order to verify the parameter values of different EAHX in various climates and design condition

An evaluation on the effect of night ventilation on thermal mass to reduce overheating in future climate scenarios

The aim of this study was to evaluate the influence of night ventilation on thermal mass benefits, with a view to alleviating the impact of future climate scenarios in terms of overheating. Dynamic thermal simulations were used to analyse the overheating performance of a test room with exposed thermal mass. A range of night ventilation rates were simulated to evaluate their effect on thermal mass behaviour with regard to overheating according to different future climate and emission scenarios for London Islington. The study shows that night ventilation rates of at least 8 acph are needed to provide significant overheating reductions. In the long term, ventilation rates under 10 acph will have little effect, allowing overheating reductions of less than 3% for high emissions scenarios and less than 8% for medium emissions scenarios. Different strategies must be in place if overheating is to be avoided due to warmer outdoor temperatures

Euler buckling in red blood cells: An optically driven biological micromotor

We investigate the physics of an optically-driven micromotor of biological origin. A single, live red blood cell, when placed in an optical trap folds into a rod-like shape. If the trapping laser beam is circularly polarized, the folded RBC rotates. A model based on the concept of buckling instabilities captures the folding phenomenon; the rotation of the cell is simply understood using the Poincar\`e sphere. Our model predicts that (i) at a critical intensity of the trapping beam the RBC shape undergoes large fluctuations and (ii) the torque is proportional to the intensity of the laser beam. These predictions have been tested experimentally. We suggest a possible mechanism for emergence of birefringent properties in the RBC in the folded state

Constrained pattern of viral evolution in acute and early HCV infection limits viral plasticity

Cellular immune responses during acute Hepatitis C virus (HCV) and HIV infection are a known correlate of infection outcome. Viral adaptation to these responses via mutation(s) within CD8+ T-cell epitopes allows these viruses to subvert host immune control. This study examined HCV evolution in 21 HCV genotype 1-infected subjects to characterise the level of viral adaptation during acute and early HCV infection. Of the total mutations observed 25% were within described CD8+ T-cell epitopes or at viral adaptation sites. Most mutations were maintained into the chronic phase of HCV infection (75%). The lack of reversion of adaptations and high proportion of silent substitutions suggests that HCV has structural and functional limitations that constrain evolution. These results were compared to the pattern of viral evolution observed in 98 subjects during a similar phase in HIV infection from a previous study. In contrast to HCV, evolution during acute HIV infection is marked by high levels of amino acid change relative to silent substitutions, including a higher proportion of adaptations, likely reflecting strong and continued CD8+ T-cell pressure combined with greater plasticity of the virus. Understanding viral escape dynamics for these two viruses is important for effective T cell vaccine design

RoofKIT – Building simulation in sustainable housing at the Solar Decathlon Europe 21/22

The contribution of the RoofKIT student team to the SDE 21/22 competition is the extension of an existing café in Wuppertal, Germany, to create new functions and living space for the building with simultaneous energetic upgrading. A demonstration unit is built representing a small cut-out of this extension. The developed energy concept was thoroughly simulated by the student team in seminars using Modelica. The system uses mainly solar energy via PVT collectors as the heat source for a brine-water heat pump (space heating and hot water). Energy storage (thermal and electrical) is installed to decouple generation and consumption. Simulation results confirm that carbon neutrality is achieved for the building operation, consuming and generating around 60 kWh/m2a

Bibliothekseinrichtung und technische Ausstattung

Das Praxishandbuch Bibliotheksmanagement erscheint in zweiter, völlig neubearbeiteter Auflage. Aus Sicht der Bibliothekspraxis bietet es eine aktuelle Standortbestimmung und einen Überblick über alle Aspekte des Managements wissenschaftlicher Bibliotheken in Deutschland. Besonderer Wert wird dabei auf die Darstellung von aktuellen Entwicklungen unter Berücksichtigung des internationalen Kontexts gelegt. Zu ausgewählten Themen wird auch deren wissenschaftspolitische Einordnung behandelt.From the point of view of library practice, the Practical Handbook on Library Management offers an up-to-date assessment of the current situation and an overview of all aspects of the management of academic libraries in Germany. Special emphasis is placed on the presentation of current developments, taking into account the international context. On selected topics, their classification in terms of science policy is also dealt with

Googlest Du noch oder recherchierst Du schon?: wie die AG Informationskompetenz der wissenschaftlichen Bibliotheken Thüringens aufgrund vielfältiger Nachfragen eine Fortbildung organisierte

Die AG Informationskompetenz der Direktorenkonferenz Thüringer Wissenschaftlicher Bibliotheken (DTWB) setzt sich zum Ziel, eine verbesserte Qualität bei der Vermittlung von Informationskompetenz, vor allem bei den Hochschulangehörigen des Freistaats zu erreichen. Dabei liegt ein wichtiges Augenmerk auch auf der eigenen Fortbildung. Mit dem ersten von der AG ausgerichteten Workshop "Googlest Du noch oder recherchierst Du schon?", der am 14. September 2016 an der UB Ilmenau stattfand, wurden neben dem Wissenserwerb in Bezug auf lernpsychologische Kenntnisse auch Berufserfahrungen durch Impulsreferate ausgetauscht. The working group “Informationskompetenz” of the Direktorenkonferenz Thüringer Wissenschaftlicher Bibliotheken (DTWB) aims at improving the quality of information literacy teaching, especially in academic environments. One focus lies on enhancing our own skills. A first workshop concerning that matter took place at the University Library in Ilmenau in September 2016 and was entitled "Googlest Du noch oder recherchierst Du schon?". Objectives of the workshop were insights in the psychology of learning and keynote speeches about different information literacy activities followed by exchange of experiences

Das Ilmenauer Discovery Tool: Erfahrungen und Eindrücke aus 3 Monaten Beta Version

Workshop der MitarbeiterInnen der EDV-Abteilungen der wissenschaftlichen Bibliotheken in Thüringen am 14. Mai 2013 im Goethe- und Schiller-Archiv Weima