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This paper presents experimental and numerical investigations of liquid droplet/air two-phase flow through face masks. The study aims to provide a deeper understanding of the droplet filtration process, generate experimental data for modeling droplet/air two-phase flow across face masks, and develop and validate numerical models to simulate droplet motion through the mask and downstream. Droplet i
In a world where the challenges of climate change, social inequality, economic instability, and geopolitical tensions are ever-present, educators have a unique opportunity—and responsibility—to prepare their students to navigate these complexities. However, educators are also juggling teaching and research, competing deadlines, shifting expectations, institutional paradigms, and limited time and s
LIDAR techniques have been extensively used for studies of aerosol particles. Fluorescence LIDAR was employed for studying natural bio aerosols, such as pollen, but also possible warfare agents. Insects, being "large aerosol" particles clearly give rise to LIDAR returns. Recently, honey bees were studied by polarization reflectance LIDAR and their superior olfactory abilities were used in attempts
The antitumour effect of applied high voltage exponential pulses was investigated on rats with subcutaneously implanted N32 brain tumours. Superficial tumours on the thigh were produced by the injection of 100 000 N32 glioma cells on Fischer-344 rats. Four weeks after inoculation, a solid tumour has grown to a size of about 1 cm located directly under the skin. Short electric high voltage pulses w
Moisture is decisive for a large number of reaction, binding and transport processes in concrete affecting the durability, shrinkage and performance in various environments. Consequently, the role of moisture must be assessed and quantified in a diagnosis of concrete degradation by moisture measurements and a survey of environmental actions. The paper gives an over-view of the role of moisture in
We consider the problem of link capacity dimensioning and routing optimization in networks that support elastic flows and maintain proportional fairness among these flows. We assume that each demand between the origin-destination (O-D) pairs is associated with a minimum and a maximum bandwidth requirement and that a certain allocated bandwidth to a user demand (which must be between these minimum
This paper illustrates a novel method to analyze artificial neural networks so as to gain insight into their internal functionality. To this purpose, the elements of a feedforward-backpropagation neural network, that has been trained to detect edges in images, are described in terms of differential operators of various orders and with various angles of operation.
We present an educational math game, including a teachable agent and an off-task conversation module in the form of a social chat. A recent study [1] indicates that the added off-task conversation module can i) improve students' game experience, ii) improve learning outcomes, and iii) engage learners in voluntary on-domain chat
We discuss the use of the Mechatronics Control Kit from Mechatronic Systems, Inc. for control education and research. The Mechatronics Control Kit can be configured with several distinct plants, including a simple DC motor, an inertia wheel pendulum and a Pendubot. The digital electronics are fully integrated and include a Texas Instruments DSP development system, the TMS320C6711 DSK Board (a DSP
Three species of Caloplaca are described as new to science: Caloplaca caesiosorediata Arup & van den Boom, a corticolous species and two saxicolous species, Caloplaca catillarioides Arup & van den Boom, and C. caesioisidiata Arup & van den Boom, all from the archipelago of Cape Verde. They are dark-fruited and have a pale to dark greyish crustose thallus. None of the new species are ph
It is well-known that the morphology of urban areas modifies the variations of climate variables at microscale; known as microclimate conditions. The complexity of urban morphology can lead to undesired wind conditions or excessive air temperature; particularly in extreme weather conditions. This study attempts to quantify the impacts of urban morphology on the evolution of wind speed and air temp
Bild 1 BBd/2008 1 Klystron BBd/2008 2 BBd/2008 3 Magnetron BBd/2008 4 Magnetron BBd/2008 5 Magnetron Resonansfrekvens ca 3 GHz BBd/2008 6 Automatisk frekvensreglering (AFC) Magnetron Motor S/H Frequency selection Wave-guide Cavities PRF Water of constant temperature BBd/2008 7 Magnetron Magnetspole S/H PRF Phase adjuster Hybrid coupler Tuning probe drive Frequency selector Automatisk frekvensregle
https://www.msf.lu.se/sites/msf.lu.se/files/19._medicinska_linjaracceleratorer_2.pdf - 2026-05-14
(Microsoft Word - Naturvetenskaplig masterexamen i geografisk informationsve\205) 1. Study programme for the Master of Science in Geo-information Science and Earth Observation for Environmental Modelling and Management, 120 Higher Education Credits, at Lund University The study programme was approved by the Board of the Faculty of Science on 7 February 2007, in accordance with the Higher Education
https://www.nateko.lu.se/sites/nateko.lu.se/files/gem_syllabus.pdf - 2026-05-14
Brevmall Postadress Box 117, 221 00 Lund Besöksadress Arkivcentrum Syd, Porfyrvägen 20, Telefon 046-222 16 71, e-post asa.berglund@legal.lu.se Legal Div is ion and Records Management Records Management and Arch ives Of f ice Åsa Berg lund, head of d iv is ion Disposal of research documents within Lund University Background The management of research documents within Lunds University is based on th
https://www.staff.lu.se/sites/staff.lu.se/files/2021-05/Disposal-of-research-documents-within-Lund-University.pdf - 2026-05-14
Administrative Procedure for the Staff Disciplinary Board at Lund University and Reporting to the Government Disciplinary Board for Higher Officials Page 1 of 5 Vice-Chancellor DECISION Reg. no STYR 2023/2570 Date 1 February 2024 Administrative Procedure for the Staff Disciplinary Board at Lund University and Reporting to the Government Disciplinary Board for Higher Officials According to a decisi
Microsoft Word - GLOW_Sheehan_Biolinguistics_2012_1.docx A parameter hierarchy approach to alignment Michelle Sheehan, University of Cambridge Following the format in [1], this paper presents an attempt to characterize the general parameter hierarchy governing case/agreement alignment in (i) clauses and (ii) ditransitives, arguing that a unified approach has rich empirical support as well as conce
