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Earlier work has derived the storage complexity of the bounded distance decoder (BDD) for binary-channel convolutional codes. We extend this work to the Gaussian noise channel and to partial-response codes. We show that the storage requirement similar to(2(1-R) - 1)(-t) paths for rate-R convolutional codes over the binary channel becomes similar to2(2Rt) over the Gaussian channel, where the decode
Production of glycidyl ethers is industrially carried Out by reacting alcohols with epichlorhydrin, a potentially carcinogenic compound. This paper investigates a less hazardous alternative-that of a chemo-enzymatic process in which Candida antarctica lipase B catalysed generation of peracid from a carboxylic acid is followed by a Prileshajev epoxidation of the corresponding allyl ether. Trimethyl
PhD student Contact details Email: jonas [dot] allesson [at] LUCSUS [dot] lu [dot] se Phone: +46 46 222 03 04Organisation LUCSUS (Lund University Centre for Sustainability Studies) Service point: 59 WebpageJonas Allessons profile in Lund University research portalI’m a PhD student in the project “Burying Problems? Imaginaries of Carbon Capture and Storage in Scandinavia”, together with my colleagu
https://www.lucsus.lu.se/jonas-allesson - 2026-06-21
A significant surface wettability transition from hydrophobicity to hydrophilicity after long-term operation is observed in graphite bipolar plates of a proton exchange membrane fuel cell (PEMFC). Extensive in-situ electrochemical characterization was performed to investigate the impact of bipolar plate wettability on the performance and durability of two PEMFCs (named “New cell” and “Old cell”),
A solid oxide fuel cell (SOFC) is a clean and high-efficiency energy conversion device, which undergoes improvement of performance continuously. The transport of gas species and charges proceed in the porous electrodes. The porous electrodes are also responsible for the removal of exhaust gases. In this paper, a fully coupled 3D single-channel multiphysics computational fluid dynamics (CFD) model
Engine tests have been performed on a 9.6 liter spark-ignited engine fueled by natural gas and a mixture of 25/75 hydrogen/natural gas by volume. The scope of the work was to test two strategies for low emissions of harmful gases; lean burn operation and stoichiometric operation with EGR and a three-way catalyst. Most gas engines today, used in city buses, utilize the lean burn approach to achieve
Liquid water within the cathode Gas Diffusion Layer (GDL) and Gas Channel (GC) of Proton Exchange Membrane Fuel Cells (PEMFCs) is strongly coupled to gas transport properties, thereby affecting the electrochemical conversion rates. In this study, the GDL and GC regions are utilized as the simulation domain, which differs from previous studies that only focused on any one of them. A Volume of Fluid
One of the key elements in a polymer electrolyte fuel cell (PEFC) is the gas diffusion layer (GDL). The GDL offers mechanical support to the cell and provides the medium for diffusing the reactant gases from the flow plates to the electrolyte enabling the electrochemical reactions, and therefore the energy conversion. At the same time, it has the task of transporting the electrons from the active
The European Spallation Source (ESS), Lund, Sweden will be a 5MW long-pulse neutron spallation research facility and will enable new opportunities for researchers in the fields of life sciences, energy, environmental technology, cultural heritage and fundamental physics. Neutrons are produced by accelerating a high-energy proton beam into a rotating helium-cooled tungsten target. These neutrons pa
Microsoft Word - DAUGHERTY_MSc Full THESIS.doc Lund University International Master’s Programme In Environmental Science M.Sc. (LUMES) Biomass Energy Systems Efficiency: Analyzed through a Life Cycle Assessment Erik Christian Daugherty Master’s of Science Thesis Renewable Energy Analysis February 2001 _______________________________________________________________________________ Supervisor: Autho
https://www.lumes.lu.se/sites/lumes.lu.se/files/daugherty_erik.pdf - 2026-06-22
A study of complex formation of Zn(II) tetraarylporphyrin dendrimers with carbazolylphenyl branches towards 1,4-diazabicyclo-[2.2.2]octane, pyridine, imidazole, N-methylimidazole and 1,2,3-triazole was carried out by spectrophotometric and H-1 NMR titration methods. It has been shown that the binding ability of the porphyrin receptors towards mono and bidentate N-containing substrates depends on t
We present the design, prototype developments and test results of the new time-of-flight detector (ToFD) which is part of the R3B experimental setup at GSI and FAIR, Darmstadt, Germany. The ToFD detector is able to detect heavy-ion residues of all charges at relativistic energies with a relative energy precision σΔE/ΔE of up to 1% and a time precision of up to 14 ps (sigma). Together with an el
Electrification usually implies more than just swapping fuels or components and must be studied at a system level to ensure reliable, robust and resilient operation. Renewable electricity appears as the most promising alternative to replace fossil fuels in most applications in order to reduce GHG emissions. Moreover, it constitutes a virtually unlimited resource that is present in some form almost
https://www.iea.lth.se/en/research/electrification - 2026-06-21
Senior lecturer Contact details Email: philip [dot] peck [at] iiiee [dot] lu [dot] se Phone: +46 46 222 02 25 Mobile: +46 70 922 07 39Organisation The International Institute for Industrial Environmental Economics Service point: 53 WebpagePhilip Pecks profile in Lund University research portalOther affiliations Associate professor The International Institute for Industrial Environmental EconomicsI
https://www.iiiee.lu.se/philip-peck - 2026-06-21
This thesis presents the simulations of and experiments with the so-called CECOST burner. The CECOST burner is a gas turbine model combustor equipped with an axial swirler and placed in a laboratory for the lean premixed turbulent combustion of a range of fuels at atmospheric pressure. The operation with natural gas, methane, hydrogen-enriched methane and syngas from black-liquor gasification was
The MAX IV laboratory is a Swedish national laboratory for synchrotron radiation hosted by the Lund University. It will operate two storage rings to produce synchrotron light of very high intensity and quality over a broad wavelength range. A linear accelerator will feed these storage rings in topping up mode as well as serve as an electron source for a short pulse facility built on its extension.
Advances in synchrotron storage rings and beamline automation have pushed data-collection rates to thousands of data sets per week. With this increase in throughput, massive projects such as in-crystal fragment screening have become accessible to a larger number of research groups. The quality of support offered at large-scale facilities allows medicinal chemistry-focused or biochemistry-focused g
Öresundskraft – A bright internship NGEA51, January 20 – March 20 2020 Isabell Plars At the start of 2020, I did an internship at Öresundskraft in Helsingborg. Öresundskraft is an energy company owned by the city of Helsingborg. The purpose of Öresundskraft is to supply the citizens of Helsingborg with energy in the form of both electricity and heat. Öresundskraft is also involved in a lot of inno
https://www.nateko.lu.se/sv/sites/nateko.lu.se.sv/files/oresundskraft_2020.pdf - 2026-06-22
