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A combustion Large Eddy Simulation (LES) is used to examine the flow, mixing, fuel-injection and combustion dynamics of a ramjet combustor with a cavity flame holder. The combustor is a running 50/50, in mole, ethylene/hydrogen fuel mixture. A direct-connect facility dual-mode ramjet/scramjet combustor presents the target case, with in the literature available experimental data is used in the pres

Microsoft Word - Masters_Thesis_Jamalya_Imanova_30.05.2011 Renewable Energy [R]evolution through Institutional Analysis in Azerbaijan: Case Study of Solar Photovoltaic Local Application LUMES Master Thesis By: Jamalya Imanova jamalya.imanova@gmail.com Supervisor: Dr. Barry NESS Lund University Center for Sustainability Science Lund, Sweden Barry.ness@lucsus.lu.se LUMES 2011 2 Abstract The objectiv

https://www.lumes.lu.se/sites/lumes.lu.se/files/imanova_jamalya_thesis_2011.pdf - 2026-06-24

Northern Saw-whet Owls (Aegolius acadicus) breed throughout the boreal forest of North America, but little is known about their population trends or distribution within this region. Analysis of stable hydrogen isotopes (delta H-2) in feathers can delineate origins of a variety of avian migrants, but raptors are reported to have high infra-feather isotopic variance and mean delta H-2 values higher

Large scale, homogeneous quasi-free standing monolayer graphene is obtained on cubic silicon carbide, i.e., the 3C-SiC(111) surface, which represents an appealing and cost effective platform for graphene growth. The quasi-free monolayer is produced by intercalation of hydrogen under the interfacial, (6 root 3 x 6 root 3)R30 degrees-reconstructed carbon layer. After intercalation, angle resolved ph

Popular Abstract in Swedish Tillgången på energi har varit av stor betydelse för utvecklingen av det det moderna industrisamhället. Samtidigt skapar energianvändningen ett flertal miljöproblem med lokal, regional och global utbredning. Syftet med denna avhandling är att studera olika strategier för att minska miljöpåverkan från det svenska energisystemet och bedöma strategiernas tekniska och ekonoEnergy use accounts for the dominating fraction of total sulphur dioxide (SO2), nitrogen oxide (NOx), volatile organic compounds (VOCs) and carbon dioxide (CO2) emissions. In this thesis, different strategies for reducing these emissions are evaluated, using a bottom-up approach. The thesis is divided in two parts. Part I (two articles) deals with how energy efficiency improvements and the increas

We present the development of a specialized concrete for neutron shielding at neutron research facilities, based on the addition of hydrogen atoms in the form of polyethylene and also B4C for enhancing the neutron capture properties of the concrete. We show information on the mechanical properties of the concrete and the neutronics, in particular its relevance to modern spallation neutron sources,

Self-pressurization in a cylindrical ribbed tank which is partially filled with liquid hydrogen is investigated numerically under different rib spacing-to-height ratios. The Volume of Fluid (VOF) method is employed as well as a phase change model. Appropriate models are incorporated into the Ansys Fluent by the user-defined functions to carry out the computations. The ribbed surface is modeled as

The model peptides A 8 K and A 10 K self-assemble in water into ca. 100 nm long ribbon-like aggregates. These structure

Having found that carbonyl sulfide (COS), works well as a catalyst in the transformation of amino acids to polypeptides, we have now tested COS as a catalyst also for the formation of substances that might be thought of as partners in the building of RNA. The model used was selective energy transfer (SET). This model implies that a certain number of vibrational quanta are donated from the catalyst

Even among the most irradiated gas giants, so-called ultra-hot Jupiters, KELT-9b stands out as the hottest planet thus far discovered with a dayside temperature of over 4500 K. At these extreme irradiation levels, we expect an increase in heat redistribution efficiency and a low Bond albedo owed to an extended atmosphere with molecular hydrogen dissociation occurring on the planetary dayside. We p

The modeling of fuel cells requires the coupling of fluid transport with electro-chemical reactions. There are two approaches commonly used. Firstly, the electrodes can be treated as two planes, where the potential gradient can be considered as being locally one-dimensional. In this case a two dimensional current density distribution is obtained. Secondly, the two electrode layers can be spatially

Lund University International Master's Programme in Environmental Science (LUMES) Lithuania's Energy System: Towards SustainabiJity Master Thesis Author: Elena Talockaite Vilnius Gediminas Technical University, Environment Protection Department, Sauletekio al. 11, LT-2040 Vilnius, Lithuania Phone: + 3702 765298 Fax: + 3702 700497 E-mail: vtuaak@ap. vtu.lt Lund, 1998 Acknowledgements First of all,

https://www.lumes.lu.se/sites/lumes.lu.se/files/talockaite_elena.pdf - 2026-06-24

Biogas Energy- An Alternative Solutions for Sustainable Energy in Rural Areas of Bangladesh Prepared by, Anjuman Ara Rahman c/o. Monju Ara Begum (Asst. Teacher) Daulatput Govt Primary Girls School Daulatpur, Khiulna Bangladesh E-mail: Kona badhan@Eudoramai1.com Phone: +88041 774015 Supervised by, Tor Gunnar Jantsch Tor Gunnar.Jantsch@biotek.1u.se Biotechnology tIf +46 46 222 80 97 Chernical Centre

https://www.lumes.lu.se/sites/lumes.lu.se/files/rahman_anjuman.pdf - 2026-06-24

Understanding polymorphism in pharmaceutical ingredients is a long-standing challenge in formulation science. A well-known example is paracetamol, C8H9NO2. The marketed stable form I crystallizes with corrugated molecular layers. In contrast, form II, which is thermodynamically favorable at high pressures, has relatively planar layers that can slip over each other without difficulty, but is metast

Abstract in UndeterminedBackgroundCaldicellulosiruptor saccharolyticus has the ability to produce hydrogen (H2) at high yields from a wide spectrum of carbon sources, and has therefore gained industrial interest. For a cost-effective biohydrogen process, the ability of an organism to tolerate high partial pressures of H2 (PH2) is a critical aspect to eliminate the need for continuous stripping of