Sheikh Ali Ahmed

Teaching

I teach different courses in Masters and Bachelor levels mainly focusing on wood properties, wood anatomy, liquid impregnation, preservation and research methodology.

Research

My field of research interest is in liquid movement in wood, wood anatomy, wood modification, preservation and wood drying. I am also interested in non-destructive evaluation of wood and wood-based composites. I give emphasis on wood modification in an environmental benign way.

My research groups

Forestry and Wood In the Forestry and Wood field of research we are engaged in the entire chain, from forest to finished product, and with the development of new wood products for construction and…
Group of Forest Products (GoFP) The goal of the Group of Forest Products is to provide new knowledge and solutions that will lead to a more sustainable utilisation of raw materials from forests. We do…
The Bridge The Bridge is a unique long-term and strategic investment in research and education with a focus on forestry, innovation and sustainability through a partnership between Linnaeus…

My ongoing research projects

My completed research projects

Publications

Article in journal (Refereed)

Ahmed, S.A., Hosseinpourpia, R., Brischke, C., Adamopoulos, S. (2022). Anatomical, Physical, Chemical, and Biological Durability Properties of Two Rattan Species of Different Diameter Classes. Forests. 13 (1).
Status: Published
Jiang, W., Hosseinpourpia, R., Biziks, V., Ahmed, S.A., Militz, H., et al. (2021). Preparation of Polyurethane Adhesives from Crude and Purified Liquefied Wood Sawdust. Polymers. 13.
Status: Published
Sjökvist, T., Blom, Å., Ahmed, S.A. (2020). Liquid water absorption in coated Norway spruce : Impact of heartwood, sapwood, density and weather exposure. MADERAS : Ciencia y Tecnología. 22 (3). 335-346.
Status: Published
Bobadilha, G.S., Stokes, C.E., Kirker, G., Ahmed, S.A., Ohno, K., et al. (2020). Effect of exterior wood coatings on the durability of cross-laminated timber against mold and decay fungi. BioResources. 15 (4). 8420-8433.
Status: Published
Sivrikaya, H., Hosseinpourpia, R., Ahmed, S.A., Adamopoulos, S. (2020). Vacuum-heat treatment of Scots pine (Pinus sylvestris L.) wood pretreated with propanetriol. Wood Material Science & Engineering. 1-9.
Status: Epub ahead of print
Ahmed, S.A., Adamopoulos, S., Li, J., Kovacikova, J. (2020). Prediction of mechanical performance of acetylated MDF at different humid conditions. Applied Sciences. 10 (23). 1-16.
Status: Published
Ahmed, S.A., Adamopoulos, S., Poggi, F., Walther, T. (2020). Resonance and time-of-flight methods for evaluating the modulus of elasticity of particleboards at different humid conditions. Wood research. 65 (3). 365-380.
Status: Published
Van Blokland, J., Adamopoulos, S., Ahmed, S.A. (2020). Performance of thermally modified spruce timber in outdoor above-ground conditions : Checking, dynamic stiffness and static bending properties. Applied Sciences. 10 (11). 1-25.
Status: Published
Hemmilä, V., Adamopoulos, S., Hosseinpourpia, R., Ahmed, S.A. (2019). Ammonium Lignosulfonate Adhesives for Particleboards with pMDI and Furfuryl Alcohol as Crosslinkers. Polymers. 11 (10). 1-17.
Status: Published
Ahmed, S.A., Adamopoulos, S. (2018). Acoustic properties of modified wood under different humid conditions and their relevance for musical instruments. Applied Acoustics. 140. 92-99.
Status: Published
Ahmed, S.A., Morén, T., Sehlstedt-Persson, M., Blom, Å. (2017). Effect of oil impregnation on water repellency, dimensional stability and mold susceptibility of thermally-modified European aspen and downy birch wood. Journal of Wood Science. 63 (1). 74-82.
Status: Published
Wang, X.A., Björnberg, J., Hagman, O., Ahmed, S.A., Wan, H., et al. (2016). Effect of Low Temperatures on the Block Shear Strength of Norway Spruce Glulam Joints. BioResources. 11 (4). 9638-9648.
Status: Published
Elustondo, D., Ahmed, S.A., Oliveira, L. (2014). Drying western red cedar with superheated steam. Drying Technology. 32 (5). 550-556.
Status: Published
Ahmed, S.A., Sehlstedt-Persson, M., Morén, T. (2013). Development of a new rapid method for mould testing in a climate chamber : preliminary tests. European Journal of Wood and Wood Products. 71 (4). 451-461.
Status: Published
Ahmed, S.A., Sehlstedt-Persson, M., Morén, T. (2013). Mould susceptibility of Scots pine (Pinus sylvestris L.) sapwood : Impact of drying, thermal modification, and copper-based preservative. International Biodeterioration & Biodegradation. 85. 284-288.
Status: Published
Ahmed, S.A., Morén, T., Hagman, O., Cloutier, A., Fang, C., et al. (2013). Anatomical properties and process parameters affecting blister/blow formation in densified European aspen and downy birch sapwood boards by thermo-hygro-mechanical compression. Journal of Materials Science. 48 (24). 8571-8579.
Status: Published
Ahmed, S.A., Yang, Q., Sehlstedt-Persson, M., Morén, T. (2013). Accelerated Mold Test on Dried Pine Sapwood Boards : Impact of Contact Heat Treatment. Journal of wood chemistry and technology. 33 (3). 174-187.
Status: Published
Qian, Y., Karlsson, O., Ahmed, S.A., Morén, T. (2013). Dimensional Stability and Water Repellency of European Aspen Improved by Oxidized Carbohydrates.. BioResources. 8 (1). 487-498.
Status: Published
Ahmed, S.A., Hansson, L., Morén, T. (2013). Distribution of preservatives in thermally modified Scots pine and Norway spruce sapwood. Wood Science and Technology. 47 (3). 499-513.
Status: Published
Ahmed, S.A., Sehlstedt-Persson, M., Hansson, L., Morén, T. (2013). Evaluation of preservative distribution in thermally modified European aspen and birch boards using computed tomography and scanning electron microscopy. Journal of Wood Science. 59 (1). 57-66.
Status: Published
Ahmed, S.A., Sehlstedt-Persson, M., Karlsson, O., Morén, T. (2012). Uneven distribution of preservative in kiln-dried sapwood lumber of Scots pine : Impact of wood structure and resin allocation. Holzforschung. 66 (2). 251-258.
Status: Published
Ahmed, S.A., Morén, T. (2012). Moisture properties of heat-treated Scots pine and Norway spruce sapwood impregnated with wood preservatives. Wood and Fiber Science. 44 (1). 85-93.
Status: Published

Conference paper (Refereed)

Adamopoulos, S., Ahmed, S.A., Lankveld, C. (2018). Acoustic properties of acetylated wood under different humid conditions and its relevance for musical instruments. Proceedings of the 9th European Conference on Wood Modification 2018, Arnhem, The Netherlands. 236-243.
Sidorova, E., Ahmed, S.A., Diego, E. (2014). Wood thermal-modification at Luleå University of Technology. Final Cost Action FP0904 Conference “Recent Advances in the Field of TH and THM Wood Treatment” May 19-21, 2014, Skellefteå, Sweden : Books of Abstracts. 75-75.

Conference paper (Other academic)

Kovacikova, J., Kroon, M., Ahmed, S.A., Hosseinpourpia, R., Adamopoulos, S. (2021). Mechanical properties of fiberboard composite bonded with polymer matrixcomputed by mean-field homogenization methods. 25th International Congress of Theoretical and Applied Mechanics, August 22-27, 2021 : Book of Abstracts. 1984-1985.

Report (Other academic)

Sehlstedt-Persson, M., Ahmed, S.A. (2014). Metodutveckling för mögeltestning av trä - förstudie : Slutrapport. TräCentrum Norr. 23.
Sehlstedt-Persson, M., Persson, F., Karlsson, O., Ahmed, S.A. (2013). Virkestorkningens inverkan på impregnerbarhet i furusplint – Del II : Delrapport 1. TräCentrum Norr. 42.
Ahmed, S.A., Morén, T. (2012). Förstudie: värmebehandling av trä : slutrapport. 5.
Sehlstedt-Persson, M., Wamming, T., Karlsson, O., Ahmed, S.A. (2011). Modern torknings inverkan på impregnerbarhet i furusplint : Förstudie. TräCentrum Norr. 21.