| 1. |
- Amano, Tatsuya, et al.
(författare)
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Transforming Practice : Checklists for Delivering Change
- 2022
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Ingår i: Transforming Conservation : A Practical Guide to Evidence and Decision Making - A Practical Guide to Evidence and Decision Making. - 9781800648586 - 9781800648562 ; , s. 367-386
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Bokkapitel (refereegranskat)abstract
- Delivering a revolution in evidence use requires a cultural change across society. For a wide range of groups (practitioners, knowledge brokers, organisations, organisational leaders, policy makers, funders, researchers, journal publishers, the wider conservation community, educators, writers, and journalists), options are described to facilitate a change in practice, and a series of downloadable checklists is provided.
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| 2. |
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| 3. |
- Ali, Dalia A., et al.
(författare)
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Modelling of coal-biomass blends gasification and power plant revamp alternatives in Egypt's natural gas sector
- 2016
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Ingår i: Chemical Engineering Transactions. - 2283-9216. - 9788895608426 ; 52, s. 49-54
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Bokkapitel (refereegranskat)abstract
- Recently, there has been a growing research interest in the co-gasification of biomass with coal to produce syngas and electricity in a sustainable manner. Co-gasification technology do not only decrease potentially the exploitation of a significant amount of conventional coal resources, and thus lower greenhouse gases (GHG) emissions, but also boost the overall gasification process efficiency. In the present work, a rigorous simulation model of an entrained flow gasifier is developed using the Aspen Plus® software environment. The proposed simulation model is tested for an American coal and the model validation is performed in good agreement with practical data. The feedstocks used in the proposed gasifier model are dry Egyptian coal and a blend of an Egyptian coal and rice straw that is gathered locally. The proposed gasifier model mainly consists of three reactors. The first one is a yield reactor where the coal pyrolysis occurs, the second reactor is a stoichiometric reactor where the gasification reactions arise, and the third reactor is a Gibbs reactor where the water-gas and steam-methane reforming reactions take place. The influence of using a feed mixture of 90 % coal and 10 % rice straw on the gasifier efficiency is investigated. The developed model provides a robust basis for revamping of an existing Egyptian natural gas-based power plant to replace its standard fuel with a coal-rice straw blend, in case of low natural gas supply. The model is further employed to assess different revamping scenarios and alternatives within the natural gas power plant. For a dry blend of (90 % Egyptian coal and 10 % rice straw), the cold gas efficiency is estimated as 85.7 %, while for dry Egyptian it is calculated as 79.61 %. The revamped Egyptian natural gas power plant decreases the total annualized cost (TAC) by 52.7 % with respect to a new constructed integrated gasification combined cycle (IGCC) plant. Besides, the payback period decreases to 1.24 y rather than 12 y in case of the construction of a new IGCC power plant.
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| 5. |
- Raza, Rizwan, et al.
(författare)
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Low-temperature solid oxide fuel cells with bioalcohol fuels
- 2017
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Ingår i: Bioenergy Systems for the Future. - : Elsevier. - 9780081010266 - 9780081010310 ; , s. 521-539
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Bokkapitel (refereegranskat)abstract
- Energy and environmental issues become key factors for sustainable development of society and national economy. Sustainable energy targeting opportunities for economic friendly growth of a country are commonly recognized. The growing interest is focused on the renewable energy resources because of the global energy demands increasing day by day. To meet the demands, an extensive research is aimed to develop sustainable energy devices such as solar cells, rechargeable batteries, and fuel cells. In recent years, solid oxide fuel cell (SOFC) among fuel-cell types has got more attention especially due to its fuel flexibility (e.g., different hydrocarbons, alcohols, and gasoline/diesel), high efficiency, and low emission. Thus, LTSOFC fed by direct bioethanol is receiving considerable attention as a clean, highly efficient for the production of both electricity and high-grade waste heat. These multifuel advantages provide the opportunities to develop an advanced SOFC system especially bioalcohol SOFC systems. This is a very dynamic area for SOFC applications with a promising future. It may create great energy savings and pollution reductions, if the bioalcohol fuel-based-technologies in these applications come into practical use.This chapter is focused on the development of LTSOFC operated by direct bioalcohol (bioethanol and biomethanol) for sustainable development. The content of this chapter is divided into three parts: (i) development of materials, (ii) characterization and analysis, (iii) demonstration of the nanocomposite materials in a bioalcohol FC, and (iv) case studies. Such bioalcohol FC research and development can enhance the use of sustainable/renewable energy for the society, and results achieved for applications have great potential to revolutionize the energy technology in an environmentally friendly and sustainable way.
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| 6. |
- Berglund, Mats, et al.
(författare)
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Summary of comparative effectiveness.
- 2004
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Ingår i: Proposal for the Inclusion of Methadone in the Who Model List of Essential Medicines. ; , s. 13-22
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Bokkapitel (refereegranskat)
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| 7. |
- Braz, C. G., et al.
(författare)
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Dynamic modelling of non-isothermal open-cell foam catalyst packings : selective sugar hydrogenation to sugar alcohols as a case study
- 2022
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Ingår i: 32<sup>nd</sup> European Symposium on Computer Aided Process Engineering. - : Elsevier B.V.. ; , s. 73-78
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Bokkapitel (refereegranskat)abstract
- A comprehensive multiphase model was developed for a trickle bed reactor with solid foam packings. Three-dimensional dynamic mass and energy balances in the three phases of heterogeneously catalysed reaction systems were implemented, and the mass and heat transfer resistances in the gas-liquid and liquid-solid phases and inside the pores of the catalyst were included in the model. Hydrogenation of arabinose and galactose mixtures on a ruthenium catalyst supported by carbon-coated aluminium foams was applied as an industrially relevant case study for the multiphase model. The kinetic parameters were estimated with confidence intervals within 10% error, indicating a good accuracy of the parameters, and the model results present a good adjustment to the experimental values. Finally, a sensitivity analysis on several model parameters demonstrated that the model could be applied to industrially sized reactors and various multiphase catalytic systems.
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| 8. |
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| 9. |
- Enayat, Ali, 1959, et al.
(författare)
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New Constructions of Satisfaction Classes
- 2015
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Ingår i: Unifying the Philosophy of Truth / Theodora Achourioti, Henri Galinon José Martínez Fernández, Kentaro Fujimoto Editors. - Dordrecht : Springer. - 2214-9775. - 9789401796736 ; , s. 321-335
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Bokkapitel (refereegranskat)abstract
- We use model-theoretic ideas to present a perspicuous and versatile method of constructing full satisfaction classes on models of Peano arithmetic. We also comment on the ramifications of our work on issues related to conservativity and interpretability.
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| 10. |
- Kermani, Ali A., et al.
(författare)
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Advances in X-ray crystallography methods to study structural dynamics of macromolecules
- 2022
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Ingår i: Advanced Spectroscopic Methods to Study Biomolecular Structure and Dynamics. - 9780323991278 - 9780323993661 ; , s. 309-355
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Bokkapitel (refereegranskat)abstract
- X-ray crystallography has long been a key method in solving the three-dimensional structure of proteins. Structural information is essential for unraveling the molecular function of proteins and structure-based drug design. However, there are several obstacles associated with the structural determination of proteins using X-ray crystallography, such as the generation of a large amount of protein samples, instability of purified proteins, and difficulty in obtaining large and well-diffracting crystals, all of which can prolong the process of determining the crystal structure, from months to years. Over the past decade, new techniques and strategies have been developed to assist X-ray crystallographers in overcoming some of these obstacles. In this chapter, we discuss some of these technological advances. Familiarity with these new developments would benefit researchers in both academic and industrial environments who study macromolecular structural dynamics using X-ray crystallography.
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