Results 41 to 50 of about 26,316 (252)
Evolució històrica de la contaminació del riu Llobregat [PDF]
, 2010 Informació sobre les diverses formes de contaminació del riu Llobregat al llarg dels anys. Contaminació artificial, principalment d’origen miner (mines de sal i de potassa de Cardona, Súria, Sallent); contaminació per indústries tèxtils (tints i altres ...
Huguet i Ramia, Emili
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Sustainability, Local Environmental Behaviour and Firm Location Decisions
Tijdschrift voor Economische en Sociale Geografie, Volume 116, Issue 1, Page 74-90, February 2025.Abstract This paper uses Mercantile Register data to analyse the location decisions of firms in Catalan municipalities (between 2010 and 2019). Using count data panel estimations, we focus on local sustainability characteristics. The identification of the location patterns and the effects of local environmental policies on firms belonging to different ...
Josep‐Maria Arauzo‐Carod
wiley +1 more source
Oil & Gas Science and Technology, 2006 The worldwide trends in the crude oil supply indicate a continuous increase of the heavy crudes. The increase in the yield of distillation residues is complemented by an increase in their sulfur content.
Furimsky E.
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Estudi sobre les tecnologies de tractament de residus orgànics aplicables a Catalunya [PDF]
, 2002 Anàlisi d'alternatives tecnològiques de tractament de residus orgànics, especialment dejeccions ramaderes, a Catalunya. Inclou propostes per la gestió territorial de les dejeccions ramaderes. Finançant per l'Agència de Residus de Catalunya.Una estratègia
Flotats Ripoll, Xavier +2 more
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Ecological Solutions and Evidence, Volume 6, Issue 1, January–March 2025.Human‐dominated landscapes are accompanied by a myriad of anthropogenic changes that can alter components of plant–soil feedbacks. This research will assess the mechanisms of these effects from the published literature. Abstract Plant–soil feedbacks (PSFs) regulate plant growth, plant community dynamics and ecosystem functioning and are important for ...
Menilek S. Beyene +10 more
wiley +1 more source
Least Squares Residuals and Minimal Residual Methods [PDF]
SIAM Journal on Scientific Computing, 2002 We study Krylov subspace methods for solving unsymmetric linear algebraic systems that minimize the norm of the residual at each step (minimal residual (MR) methods). MR methods are often formulated in terms of a sequence of least squares (LS) problems of increasing dimension. We present several basic identities and bounds for the LS residual.
Liesen, Jörg +2 more
openaire +2 more sources
Digestió anaeròbia per al tractament de residus orgànics [PDF]
, 2006 El presente trabajo consiste en la elaboración de un documento técnico de referencia, en el campo del tratamiento de residuos orgánicos, realizado para “Ciudad Saludable”, organización no lucrativa dedicada a la implantación de sistemas de gestión de ...
Jarauta Rovira, Laura
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Metal Ion–Induced Cross‐Linking in Mucin‐Inspired Peptide Hydrogels
Journal of Peptide Science, Volume 31, Issue 11, November 2025.Short fiber‐forming peptides were modified by histidine substitution and mannose or galactose attachment and combined with different metal ions. Although no generalizable trends were observed, Lys to His substitution at position 25 with galactose in the presence of copper produced a species with highly favorable viscoelastic properties.
Annelie Puhlmann +4 more
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Journal de la Faculté de Médecine d'Oran, 2022 Introduction-L’usage inapproprié des antibiotiques en médecine vétérinaire dans un but thérapeutique ou prophylactique chez la vache laitière peut être à l’origine de la présence de leurs résidus dans le lait. Dans cette étude, nous dressons un état des
Zakaria Lotfi Gaouar +2 more
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Mesurer l’épaisseur des résidus à la surface d’un sol pour estimer leur biomasse
Cahiers Agricultures, 2019 Aujourd’hui, les résidus de culture ne sont plus considérés comme des déchets : leur contribution aux équilibres agronomiques et environnementaux des systèmes de culture est reconnue. Dans ce contexte, connaître leur quantité à la surface d’un sol, après
Thiébeau Pascal
doaj +1 more source