ImageJ

PUBLICATIONS

PhD Thesis                                                                       [Publications-pdf]

Chinga-Carrasco, G.:  "Structural studies of LWC paper coating layers using SEM and image analysis techniques".  PhD thesis 2002:14, Inst. for chemical engineering, NTNU (February 2002, 108 p). ISBN 82-471-5406-4 / ISSN 0809-103X

MSc Thesis

Chinga-Carrasco, G.:“Three-dimensional reconstruction of plant cells exposed to different gravity conditions", 112 p., 1997

JOURNAL PUBLICATIONS

• Chinga-Carrasco, G., Johnsen, P.O. and Øyås, K. "Structural quantification of wood fibres surfaces - morphological effects of pulping and enzymatic treatment". Micron, in press (2010).
• Chinga-Carrasco, G., Lenes, M., Johnsen, P.O. and Hult, E.-L. "Computer-assisted scanning electron microscopy of wood pulp fibres: dimensions and spatial distributions in a polypropylene composite". 

• Chinga-Carrasco, G. and Syverud, K. "Computer-assisted quantification of the multiscale structure of films made of nanofibrillated cellulose ". J. Nanoparticle research, in press (2009).
• Mörseburg, K. and Chinga-Carrasco, G. "Assessing the combined benefits of clay and nanofibrillated cellulose in layered TMP-based sheets". Cellulose DOI 10.1007/s10570-009-9290-4. (2009). 
• Chinga-Carrasco, G. "Exploring the multi-scale structure of printing paper - A review of modern technology"  J. Microscopy-Oxford 234(3): 211-242 (2009).
• Chinga-Carrasco, G., Kauko, H., Myllis, M., Timonen, J., Wang, B., Zhou, M. and Fossum, J.O.: "New advances in the 3D characterization of mineral coating layers on paper". J. Microscopy-Oxford 232(2): 212-224 (2008).
• Chinga-Carrasco, G., Axelsson, M, Eriksen, Ø. and Svensson, S: “Structural characteristics of pore networks affecting print-through". J. Pulp Paper Sci. 34(1): 13-22 (2008).
• Antoine, C., Leirset, I., Chinga-Carrasco, G.: "On the oil extraction process during print-through three components quantification - Part 1: The oil extraction efficiency".  Nordic Pulp Paper Res. J.  23(1): 24-28 (2008).
• Chinga, G., Solheim, O. and Mörseburg, K.: "Cross-sectional dimensions of fiber and pore networks based on Euclidean distance maps".  Nordic Pulp Paper Res. J. 22(4): 500-507 (2007).
• Chinga, G. and Syverud, K.: "On structural properties affecting the picking tendency of newsprints". Nordic Pulp and Paper Res. J. 22(4): 447-451 (2007).
• Chinga, G. and Syverud, K.: "Quantification of paper mass distributions within local picking areas". Nordic Pulp and Paper Res. J. 22(4): 441-446 (2007).
• Chinga, G., Eriksen, Ø. and Eilertsen, M: “On the suitability of desktop scanners for assessing print-through". J. Pulp Paper Sci. 33(3): 125-132 (2007).
• Chinga, G., Diserud, O. and Lunden-Berli, E.: “On surface details affecting the quality of commercial SC papers for gravure printing". Nordic Pulp Paper Res. J. 22(3): 331-335 (2007).
• Chinga, G., Johnssen, P.O., Dougherty, R, Lunden-Berli, E. and Walter, J.: “Quantification of the 3-D micro-structure of SC surfaces". J. Microscopy-Oxford 227(3): 254-265 (2007).
• Ersoy, O., Gourgaud, A., Aydar, E., Chinga, G. and Thouret, J.-C.: "Quantitative SEM analysis of ash surfaces: Application to the 1982-83 Galunggung eruption (Indonesia). Geol Soc Am Bull 119: 743-752 (2007).
• Syverud, K., Chinga, G., Johnssen, P.O., Leirset, I. and Wiik, K.: “Analysis of lint particles from full-scale printing trials". Appita J. 60(4): 286-290 (2007).
• Eriksen, Ø., Chinga, G. and Gregersen, Ø.: “A mathematical morphology-based method for the quantification of fines in the Z-direction of paper”. Journal of pulp and paper science 32(2):95-99 (2006).
• Ersoy, O., Chinga, G., Aydar, E., Gourgaud, A., Cubukcu, H.E. and Ulusoy, I. :” Texture discrimination of volcanic ashes from different fragmentation mechanisms: a case study, Mount Nemrut stratovolcano, eastern Turkey”. Computers & Geosciences 32(7): 936-946 (2006).
• Chinga, G.: “A quadtree decomposition approach for surface assessment”. Pattern Analysis and Applications Journal 9(4): 94-101 (2006).
• Chinga, G.: “Detailed paper surface characterization for gloss assessment”. J. Pulp Paper Sci. 30(8):222-227 (2004).
• Holmstad, R., Kure, K.-A., Chinga, G. and Gregersen, Ø.: “Effect of temperature gradient multi-nip calendering on the structure of SC paper”. Nordic pulp and paper research J. 19(4): 489-494 (2004).
• Chinga, G., Stoen, T. and Gregersen, Ø.: ”On the roughening effect of laboratory heatset offset printing on SC and LWC paper surfaces”. Journal of Pulp and Paper Science 30(11): 307-311 (2004).
• Chinga, G., Johnsen, P.O. and Diserud, O. "Controlled serial grinding for high-resolution 3-D reconstruction". J. Microscopy-Oxford 214(1): 13-21 (2004).
• Chinga, G, Gregersen, Ø, Dougherty, B. "Paper surface characterisation by laser profilometry and image analysis", J. of Microscopy and Analysis, 84: 5-7 (2003).    
• Chinga,G. and Helle,T.: "Staining with OsO4 as a means to explore paper coating  structure".  Paperi ja Puu 85(1): 1-5 (2003).
• Chinga,G. and Helle,T.: "Relationships between the coating surface structural variation and print quality". Journal of Pulp and Paper Science 29(6): 179-184 (2003)  
• Chinga,G. and Helle,T.: "3-Dimensional reconstruction of a coating layer  structure". Journal of Pulp and Paper Science 29(4): 119-122 (2003)
• Chinga, G. "Análisis de células vegetales expuestas a microgravedad", Ciencia al dia internacional, 5(1): 4 (2003) 
• Chinga,G. and Helle,T.:  "Structure characterisation of pigment coating layer on paper by scanning electron microscopy and image analysis". Nordic Pulp and Paper Research Journal 17(3): 307-312 (2002)
• Chinga,G., Helle,T. and Forseth,T.: "Quantification of structure details of LWC paper coating layers". Nordic Pulp and Paper Research Journal 17(3): 313-318 (2002).
• Chinga, G., Skagen, E.B., Beisvåg, T., Briarty, L.G. & Iversen, T.-H. "3-D reconstruction of Arabidopsis thaliana root statocytes exposed to different gravity conditions". Microscopy and Analysis, p. 17-19, March, 2000.

CONFERENCES WITH PROCEEDINGS

• Syverud, K., Chinga-Carrasco, G., Toledo, J. & Toledo, P: “Cellulose nanofibrils production: A comparison of hardwood and softwood never-dried kraft pulp fibres” Oral presentation in CELL symposia at the American Chemical Society, National Meetings, Cellulose and Renewable Materials Division - Session Micro and Nanofibers from Sustainable Materials. San Francisco, USA (2010). 
• Chinga-Carrasco, G., Syverud, Toledo, J., Toledo, P., K., Øyaas, K. & Gregersen, Ø.: "A survey of Chilean natural resources - focus on novel materials and bio-energy solutions". First NorLARNet conference. Oslo, November 12-13 (2009).
• Syverud, K., Chinga-Carrasco, G. & Stenius, P: "Preparation, characterization and modification of nano-sized cellulose fibrils". 15th International Symposium on Wood, Fibre and Pulping Chemistry - ISWFPC, Oslo June 15 - 18 (2009).
• Preston, J., Toivakka, M., Heard, P. & Chinga-Carrasco, G.: "Coated Paper Microstructure: Particle shape - Microstructure Interrelations. PaperCon , Renaissance St. Louis, 800 Washington Ave., St. Louis, MO 63101, USA.  (2009).
• Syverud, K., Gregersen, Ø., Chinga-Carrasco, G. & Eriksen, Ø.: ”The influence of microfibrillated cellulose, MFC, on paper strength and surface properties” Oral presentation in the 14th Fundamental Research Symposium, to be held at St. Anne's College, Oxford, UK between 14 and 18 September (2009) 
• Syverud, K., Chinga-Carrasco, G. & Stenius, P: “On the tensile characteristics of model films and membranes with different MFC loadings” Oral presentation in CELL symposia at the American Chemical Society, National Meetings Cellulose and Renewable Materials Division Salt Lake City (2009) 
• Dickson, A. and Chinga, G.: "Analysing the relationship between ink coverage and variations in sheet grammage and topography", Oral presentation in 62nd Appita annual conference and exhibition, Rotorua New Zealand, April 20-23  (2008).
• Mettänen, M and Chinga, G.: "Surface reconstruction methods for the characterization of paper topography". COST E32 Action - Characterization of Paper Surfaces for Improved Printing Paper Grades: Paper in Printing Processes Seminar. Grenoble, France, Oct. 4-5 (2007) . 
• Chinga, G., Johnsen, P.O., Kauko, H., Myllys, M. and Timonen, J.: “On the three-dimensionality of glossy surfaces". PTS coating symposium, Baden-Baden, Germany (2007).
• Chinga, G. and Syverud, K.: “Simultaneous quantification of paper mass distribution and print details".  International Paper Physics Conference, Broadbeach, Australia (2007).
• Chinga, G. and Syverud, K.: “Explaining picking tendency by local formation analysis". International Paper Physics Conference, Broadbeach, Australia (2007).
• Mörseburg, K. and Chinga, G.: "Tailoring printing paper properties - Potential and weaknesses of mechanical pulp in multilayered sheets", International Mechanical Pulp Conference, USA  (2007).
• Chinga, G. and Dougherty, R.: "Quantification of surfaces structures". ImageJ Conference, Luxembourg, May (2006).
• Antoine, C. and Chinga, G., “Wavelet analysis of paper surface structure”, Progress in Paper Physics Seminar, Trondheim, Norway (2004).
• Holmstad, R., Gregersen, Ø. and Chinga, G. "A method for the evaluation of the true density distribution in the Z-direction of paper", Progress in Paper Physics Seminar, Finger Lakes/Sycurase, New York, September 8-13, pp 43-47 (2002)
• Chinga,G., Helle,T. and Johnsen, P.O.:  "Characterization of pigment coating layer  structure using SEM and Digital Image Analysis techniques". 2000 Tappi Coating Conference and Trade Fair, Washington, DC, USA, 1-4 May, pp 309-316 (2000)
• Chinga,G., Helle,T. and Johnsen, P.O.:  "Pigment coating structure details, its relationship to coating processes and effect on printing ink absorption". PAPTAC 86th Annual meeting, Montreal, Que, Canada, 1-3 Feb., pp A119-A124 (2000)
• Chinga,G. and Helle,T.:  "Variations of LWC paper surfaces and their implications for the printing ink behaviour". COST Workshop Action E-11 "Characterisation methods for fibres and paper", Grenoble, France , November 30^th – December 1^st  (2000)
• Holmstad, R. and  Chinga, G.:  "Cross-sectional image analysis of paper structure as a step towards three-dimensional structural analysis". COST Workshop Action E-11 "Characterisation methods for fibres and paper", Grenoble, November 2000.
• Iversen T-H ., Johnsson, A., Skagen, E.B., Beisvåg, T., Chinga, G., Andreassen, P., Kittang, A.I., Wold A.B., Kristensen, A. & Rasmussen O S, Immobilized protoplasts under microgravity conditions. Preliminary results from the S/MM-03 mission, Proc. 6th Europ. Symp. Life Sci. in Space, ESA SP -390, 29-36. 1997

CONFERENCES, SEMINARS, SCIENTIFIC MEETINGS WITHOUT PROCEEDINGS

• Øyaas, K., Syverud, K. & Chinga-Carrasco, G.: ”The effect of enzymatic modification on the surface nano-structure of wood fibres” Oral presentation in The 2nd Annual Workshop of COST FP0602 Enzymatic fiber modification and hydrolysis December 4-5, Biel, Switzerland (2008).
• Chinga-Carrasco, G.: “Nano-characterisation of cellulose-based materials” Oral presentation in PFI Research Seminar: “Recent advances in fibrillar nanocellulose research – Characterisation and applications”. PFI, Norway, November 12-13 (2008). 
• Chinga-Carrasco, G.: "Assessment of coldset print quality - Structure-property relationships", Oral presentation in the STFI research seminar, September 30  (2008).
• Syverud, K. and Chinga-Carrasco, G.: "Structural characterisation of nanocellulose films - from macro to nano". Oral presentation in the E50 Workshop - Characterisation and application of cell wall macromolecules. Dübendorf, Switzerland, October 27-29 (2008).
• Chinga-Carrasco, G.: "Modern methods for characterisation of fibres, paper and prints - from desktop scanners to x-ray microtomography", Oral presentation in the PFI seminar, June 5  (2008).
• Chinga, G.: "Microscopy studies of fibre and paper structures". Presentaion in Avancell seminar, Gothenburg, Sweden, November 29 (2007)
• Chinga, G.: "Automatisert billedanalyse effektiviserer utviklingen av papirkvaliteter og nye materialer". Presentation in Treforedlingsforum, Oslo, Norway, November 20-21 (2007) - 
• Chinga, G.: "ImageJ as a tool for the quantification of paper and print defects". Presentation in Mikroskopiklubben, Espoo, Finland, Oct. 4-5 (2007) .
• Chinga, G., : “Surface structure characterization for mottling assessment on coated papers”, Paper/Ink Properties and their Relation to Offset Printability, Presentation in Symposium COST E32 Action: Characterization of Paper Surfaces for Improved Printing Paper Grades, October 6-7, Madrid (2005)
• Gregersen, Ø., Eriksen, Ø. and Chinga, G., :Ink distribution and surface roughening in cold- and heatset printed surfaces”, Paper/Ink Properties and their Relation to Offset Printability, Presentation in Symposium COST E32 Action: Characterization of Paper Surfaces for Improved Printing Paper Grades, October 6-7, Madrid (2005)
• Chinga, G., “Structural characterisation of coating layers”, Presentation in New concepts in paper surface treatment seminar, Stockholm, October (2004).
• Chinga, G., “Comparison of optical devices for assessing paper surface structure”, COST Action E32: Characterization of paper surfaces for improved paper grades, Presentation in 2nd Working group meeting, June 18, Trondheim, Norway (2004).

POSTERS

• Chinga-Carrasco G., Johnsen, PO and Syverud, K. "A field-emission SEM study of the nanostructure of cellulose fibrils".  E50 Workshop - Characterisation and application of cell wall macromolecules. Dübendorf, Switzerland, October 27-29 (2008).
• Ersoy O, Gourgaud A, Aydar E, Chinga G, Thouret J-C:. "Prediction of changes in volcanic activity based on ash surface textures: a case study, the 1982-83 eruption of Galunggung volcano (Indonesia)". Cities on Volcanoes 4 conference (IAVCEI), Quito-Ecuador (23-27 January 2006)-Poster presentation (2006).
• Chinga,G., Helle,T. and Johnsen, P.O.:  "Analysis of pigment coating layer structure details using digital image processing and analysis and SEM techniques".  Poster. "Microscopy as a tool in pulp and paper research and development symposium", Stockholm, Sweden, 21-22 June 1999, p. 217 (1999)
• Chinga,G. and Helle,T.:  "On the assessment of coating layer structure details".  Poster. 2000 Progress in  Paper Physics Seminar, Grenoble, Frankrike.