Sökresultat

In this paper, the effects of axial gap distance between the first stage stator and rotor blades and multiblocking on aerodynamics and performance of partial admission turbines are analyzed numerically. The selected test case is a two stage axial steam turbine with low reaction blades operating with compressed air. The multiblocking effect is studied by blocking the inlet annulus of the turbine in

ABSTRACT Biological invasions have intensified in recent decades, mostly driven by international trade and travel, raising significant concerns, particularly regarding insect pests. Once non-native species establish, they can disrupt natural ecosystem stability, undermine agroecosystem sustainability and cause substantial economic losses. The urgency to anticipate these socio-economic impacts has

Many forms of small-size radars suffer from minor clock oscillations due to crystalline impurities in their internal clocks, causing time-varying clock offsets between the transmitter and the receivers. This offset causes a bias and an increased variance in the positioning of close-range targets, limiting the achievable accuracy well beyond the expected estimation limitations. Furthermore, an appr

HTML clipboard Numerical analysis of partial admission in axial turbines is performed in this work. Geometrical details of an existing two stage turbine facility with low reaction blades is used for this purpose. For validation of the numerical results, experimental measurements of one partial admission configuration at design point was used. The partial admission turbine with single blockage had

The ALICE Collaboration reports measurements of the large relative transverse momentum (kT) component of jet substructure in pp and Pb-Pb collisions at center-of-mass energy per nucleon pair sNN=5.02 TeV. Enhancement in the yield of such large-kT emissions in head-on Pb-Pb collisions is predicted to arise from partonic scattering with quasiparticles of the quark-gluon plasma. The analysis utilizes

The most prevailing hypothesis regarding mechanisms behind specific language impairment today is the hypothesis of general limitations of processing capacity. Such an hypothesis can hardly be tested by available language assessment tools, especially not by instruments in use for clinical assessment of the lexical-semantic domain in children. Reduced naming speed is by some researchers considered a

Here we report an investigation of ultrathin tin oxide films on Pt3Sn(111) using low-energy electron microscopy (LEEM), microspot low-energy electron diffraction (μ-LEED), scanning tunneling microscopy (STM), surface X-ray diffraction (SXRD), and high-resolution X-ray photoelectron spectroscopy (XPS). Oxidation at ∼390–410 °C produces triangular, two-dimensional oxide islands that nucleate rapidly

BACKGROUNDThe Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with the ability to infest and kill vigorous trees through pheromone-mediated mass attacks. During outbreaks, I. typographus has been observed to occasionally attack Scots pine (SP, Pinus sylvestris). We investigated in the laboratory whether I. typographus is attracted

Localizer orientation can significantly impact the automatic tube-current modulation (ATCM) in computed tomography (CT). The purpose of this study was to introduce a methodology for assessing ATCM consistency and to compare the outcomes in image noise and radiation dose between a single anterior–posterior (AP) localizer and a combination of lateral and AP (LAT + AP) localizers. A total of 299 pros

Background:Preparing for the end of life is believed to help mitigate emotional suffering for both patients and their caregivers. However, empirical evidence on the emotional benefits of feeling prepared for death remains limited.Aim:This study uses data from the international iLIVE project to examine how perceived end-of-life preparedness is associated with emotional suffering among patients and

Performance Walk with Interconnected BodiesIn Community Walk, it is the garments that set the framework. In pairs, you move out into the landscape—physically connected by a specially designed costume created by the playful artist Charlotte Østergaard. She guides you in exploring and challenging the costume together.The costume creates a new relation between you, shaping how you move forward. You f

Denna rapport undersöker relationen mellan arkitektur och identitet genom en jämförande studie av Västra Hamnen i Malmö, Sverige, och Beirut waterfront vid Beiruts kust, Libanon. Genomanalys av bostads design, arkitektoniska uttryck, material och utformning av offentliga rum belyses hur stadsbyggnad kan skapa eller underminera känslan av tillhörighet, minne och identitet i olika kulturella och kliArchitecture plays a crucial role in shaping not only the physical fabric of cities but also the emotional and psychological experiences of those who inhabit them. It holds the power to evoke memory, identity, and a sense of belonging, especially in cities with complex histories or contrasting urban trajectories. Having the privilege to feel at home in two cities so geographically distant yet emot

The book is a summary of excursion guides for the Lund University course NGEA 04 “Ecosystem analysis”—a field course week held on Öland 2000 to 2025. The guide serves as an introduction and overview of basic information about certain physical geographical environments, features, and general physiographic and ecological traits of southern Öland. Primarily, it offers a general introduction to the is