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Although carbonate-carbon (C), an integral part of biochar-C, contributes to the liming properties of that material, it also interferes with the estimation of the stable organic C fraction in biochars. In this study, four methods were compared in order to quantify the carbonate-C in biochars: two direct (a titrimetric procedure and thermogravimetric analysis, TGA), and two indirect (acid treatment
In order to move away from fossil fuels many governments and industries are focusing their new investments in electricity and alternative fuels such as green hydrogen from electrolyzers using renewable electricity. High investment costs and electricity costs are a hindrance for the future development of a hydrogen economy which can utilize an increasing intermittent power generation. The aim of th
Untitled Master’s Dissertation Structural Mechanics JUAN CARDENAL BASTÉ Report TV SM -5150 JU A N C A RD EN A L BA STÉ D ESIG N M ETH O D FO R STR U T-B EA M C O N N EC TIO N IN H IN G ED FR A M ES DESIGN METHOD FOR STRUT-BEAM CONNECTION IN HINGED FRAMES Detta är en tom sida! Copyright © 2012 by Structural Mechanics, LTH, Sweden. Printed by Media-Tryck LU, Lund, Sweden, July, 2012 (Pl). For inform
https://www.byggmek.lth.se/fileadmin/byggnadsmekanik/publications/tvsm5000/web5150.pdf - 2026-07-09
Abstract in UndeterminedTRIPS is a trade-off between the interest of the developed world in having its technology respected and the need for technology transfer especially to the least-developed countries. But this balance of interests is poorly expressed in the Agreement, which is primarily devoted to protection of intellectual property rights and only marginally addresses the other side of the c
Human Ecology DivisionCarl Nordlund "Social Ecography; International trade, network analysis, and an Emmanuelian conceptualization of ecological unequal exchange"Presentation: Defence date: 11th October 2010. This thesis demonstrates how network analysis, ecological economics and the world-system perspective can be combined into an ecographic framework that can yield new insights into the unde
https://www.keg.lu.se/en/research/research-projects/finished-phd-projects/2010-finished-phd-projects - 2026-07-09
Given the importance of copper prices to investors, governments, and policymakers, this paper investigates short-term price predictability using VAR and XGBoost models. All models are trained with historical data from November 2021 to December 2022 and using MSE, RMSE and MAE for evaluating the model performance. The results show that the XGBoost model outperforms VAR models, implying that machine
Riktlinjer för utformning av Sida 1 av 1 FÖRSÄTTSSIDA STYRDOKUMENT Riktlinjer för utformning av examensbevis från utbildning på grundnivå och avancerad nivå vid Lunds universitet Typ av styrdokument: Riktlinjer Definition av typen av styrdokument: Riktlinjer fastställer hur någon ska eller bör handla inom det område riktlinjerna omfattar. En ska- regel ska följas medan en bör-regel mer har karaktä
Lägg till titel FÖRSÄTTSSIDA STYRDOKUMENT Kvalitetspolicy för Lunds universitet Typ av styrdokument: Policy Definition av typen av styrdokument: En policy uttrycker ledningens övergripande viljeriktning eller värden som ska beaktas inom det område policyn omfattar och sätter ramarna för ett visst handlande och utgör en stark rekommendation om ett visst handlingssätt. Beslutsfattare: Universitetsst
Uncertainty quantification (UQ) tasks, such as sensitivity analysis and parameter estimation, entail a huge computational complexity when dealing with input-output maps involving the solution of nonlinear differential problems, because of the need to query expensive numerical solvers repeatedly. Projection-based reduced order models (ROMs), such as the Galerkin-reduced basis (RB) method, have been
Questions about institutional stability and change are critically important for any understanding of political institutions. The field of Historical institutionalism in political science has described, studied and theorized institutions for decades. One of the most recurring concepts utilized in the explanation of institutional stability is path dependence, describing theoretical and empirical mec
Accessibility of LUP Statistics, lup.lub.lu.se/lupStat LUP Statistics is run by the University Library of Lund University. We want as many people as possible to be able to use this website, and this document describes how LUP Statistics complies with the accessibility regulations, any known accessibility issues, and how you can report problems so that we can fix them. How accessible is LUP Statist
https://www.ub.lu.se/accessibility-lup-statistics - 2026-07-09
This thesis concerns estimation in partially observed continuous and discrete time Markov models and focus on both inference about the conditional distribution of the unobserved process as well as parameter inference for the dynamics of the unobserved process. Paper A concerns calibration of advanced stock price models, in particular the Bates and NIG-CIR models, using options data observed th
