65 results on '"Figueiredo, M. Ondina"'
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2. Lateritos da Guiné-Bissau. Morfologia e geodiversidade
3. Tungsten-bearing molybdenite from Borralha
4. Contribution to the knowledge of laterite formations in Guinea-Bissau
5. X-ray absorption near-edge spectroscopy (XANES) applied to the speciation of tungsten in Panasqueira mine debris
6. A utilização da radiação de sincrotrão no estudo de materiais geológicos; breve abordagem sobre experiências recentes de um grupo de utilizadores
7. The recovery of scarce critical metals in environmental treatments of mining residues : rhenium in Panasqueira tungsten mine tailings
8. Towards a sustainable recovery of valuable metals from mining residues : a XANES approach to tungsten speciation in debris from the Panasqueira mine
9. Selenium in wastes from the old mine of São Domingos in southern Portugal (IPB) : already attached to oxygen or retained in relics of former chalcogenide minerals?
10. Valorisation of mineral resources : contributions of MinReMol project to a sustainable rhenium recovery from mining residues
11. Molybdenite as a rhenium carrier : first results of a spectroscopic approach using synchrotron radiation
12. Opportunities for recovering critical raw materials from mine wastes : the type-case of rhenium in residues from the exploitation of old portuguese mines
13. A new light into old gold
14. Diagnostics of glaze pathologies in ancient (XVII-XVIII cents.) decorative blue-and-white ceramic tiles with the aim of implementing innovative conservation techniques
15. Scarce industrial commodities : a glance at the possible rhenium availability in mining residues from the exploitation of Portuguese ore deposits
16. X-ray absorption spectroscopy at Re L3-edge applied to mine waste materials : a possible input to the sustainable recovery of rhenium
17. Rhenium incorporation in molybdenite : first results of a XANES study
18. Retention of hazardous metals by secondary iron sulphates in acid mine drainage processes : the positive environmental contribution of jarosite by efficiently sequestering lead
19. Rhenium in waste material of the sulphur factory from the S. Domingos abandoned mine (Iberian Pyrite Belt, southern Portugal) : an X-ray absorption spectroscopy approach
20. Inferring the formal oxidation state of 3d metal ions from K-edge XANES spectra : how far can we go for cobalt in ancient chinese porcelain glazes?
21. Lead in jarosite : an X-ray absorption spectroscopy approach
22. Environmental effects on glazed ceramics : green stains in 18th century blue-and-white portuguese tile glazes
23. Synchrotron radiation (SR) in materials science : a brief retrospective on first approaches towards the use of SR at European research facilities
24. An approach to the binding state of indium in natural chalcogenides through the analysis of In L3 edge XANES spectra
25. Indium-carrier minerals in polymetallic sulphide ore deposits : a crystal chemical insight into an indium binding state supported by X-ray absorption spectroscopy data
26. Ancient Chinese blue-and-white porcelain glazes : can we measure the oxidation state of cobalt through X-ray absorption spectroscopy?
27. Tomografia de neutrões aplicada a azulejos do séc. XVII - visualização para caracterização, diagnóstico e optimização de técnicas de conservação
28. Ascertaining the degradation state of ceramic tiles : a preliminary non-destructive step in view of conservation treatments using gamma radiation
29. Datação, autenticidade, materiais e pigmentos. Estudos laboratoriais sobre faiança portuguesa e porcelana chinesa produzida para o mercado português, séculos XVI a XVIII
30. Fingerprints for mining products and wastes of the S. Domingos, Aljustrel and Neves Corvo mines : a sustainable perspective
31. Indium before entering thin films
32. X-ray spectroscopic techniques apllied to the characterization of pigments in ancient glazes : from portuguese tiles to chinese porcelains
33. Quartzo de pegmatitos graníticos : uma matéria-prima para alta tecnologia
34. Tile pathologies : green stains in blue-and-white glazes from an 18th century tile panel figuring Lisbon
35. Natural nanomaterials : reaprising the elusive structure of the nanosized mineral ferrihydrite through X-ray absorption spectroscopy at the iron K-edge
36. Nanophases in the mineral world : the unique case of ferrihydrite
37. The positive environmental contribution of jarosite by retaining lead in acid mine drainage areas
38. Oceanic biological productivity changes off Iberia during MIS 5 and its relation to the Atlantic Meridional Overturning Circulation [Abstract]
39. The binding state of indium and tin in natural sulphides : first results of a comparative study by X-ray absorption spectroscopy at the L-edge [Abstract]
40. Sedimentos marinhos : caracterização química expedita por espectrometria de fluorescência de raios X = Marine sediments : an easy-and-quick chemical characterization through X-ray fluorescence spectrometry
41. Variações da produtividade oceânica ao largo da Península Ibérica durante o MIS 5 e a sua relação com a Circulação Thermohalina = Open ocean productivity changes off Iberia during MIS 5 and its relation to the Atlantic Meridional Overturning Circulation
42. Non-destructive and micro-invasive techniques for cultural heritage diagnosis : a case study of glazed tiles from Portuguese historial buildings [Abstract]
43. Óxidos, da superfície ao interior da Terra : cristaloquímica e mineralogia
44. Open oceanic productivity changes at mid-latitudes during interglacials and its relation to the Atlantic Meridional Overturning Circulation [Abstract]
45. How metallic is the binding state of indium hosted by excess-metal chalcogenides in ore deposits [Abstract]
46. Secondary iron sulphates in AMD : a minerochemical analysis on jarosite supporting the valorization of its geoenvironmental contribution [Abstract]
47. Blue pigments in XVI-XVII century glazes : a comparative study between portuguese faiences and chinese porcelains
48. Optimisation of preparation and measurement protocols for luminescence dating of small samples from a suite of porcelains and faiences
49. Indium crystal chemistry : from thin-fill materials to natural bulk chalcogenides
50. The binding state of indium in natural chalcogenides : a XANES approach through the L.3 absorption edge
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