Results 31 to 40 of about 3,827 (242)

Experimental study and characterisation of a novel two stage bubbling fluidised bed gasification process utilising municipal waste wood

Fuel Processing Technology
Biomass gasification has increased due to its ability to provide high-temperature heat, making it promising for the decarbonisation of industrial processes.
M. Kresta, D. Gurtner, L. Nohel, A. Hofmann, C. Pfeifer   +4 more
doaj   +1 more source

Experimental study on solids circulation patterns and bubble behavior using particle imagevelocimetry combined with digital image analysis [PDF]

, 2008
The hydrodynamics, viz. the solids circulation patterns and\ud bubble behavior, of a freely bubbling gas-solid fluidized bed\ud has been investigated experimentally using Particle Image\ud Velocimetry (PIV) combined with Digital Image Analysis\ud (DIA ...
Kuipers, J.A.M., Laverman, J.A., Roghair, Ivo, Sint Annaland, M. van   +3 more
core   +1 more source

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source

Segregation in dense gas-fluidised beds: validation of a multi-fluid continuum model with non-intrusive digital image analysis measurements. [PDF]

, 2001
A non-intrusive digital image analyses technique is applied to study size driven segregation of a binary mixture of coloured glass beads in a bubbling gas-fluidised bed.
Goldschmidt, M.J.V., Kuipers, J.A.M., Swaaij, W.P.M. van   +2 more
core   +2 more sources

Aerated bunker discharge of fine dilating powders [PDF]

, 1991
The discharge rate of coarse powders (mean particle size 500 ¿m) from bunkers without aeration can be described by both empirical relations and theoretical models. In the case of small particles the discharge rate is largely overestimated.
Frank, M.J.W., Molenaar, H.J., Ouwerkerk, C.E.D.   +2 more
core   +4 more sources

Perfusion Bioreactor Culture Incorporating Mechanical Confinement Enhances Mesenchymal Stem Cell Extracellular Vesicle Production and Wound Healing Potential

Advanced Materials Technologies, EarlyView.
Scalable manufacturing challenges and limited potency remain two of the most intransigent issues limiting clinical translation of EV therapeutics. Mechanical cues can induce phenotypic changes and increased vesiculation in EV source cells without the use of extraneous reagents, chemicals, and/or cargo, thereby potentially drastically improving the ...
Emily H. Powsner, Raith Nowak, Stephanie M. Kronstadt, Nicholas H. Pirolli, Talia J. Solomon, Kristin Nikolov, William Pieper Holeman, Ian M. Smith, Kimberly M. Stroka, John P. Fisher, Steven M. Jay   +10 more
wiley   +1 more source

Performance evaluation of a novel two-stage waste wood gasifier: Influence of steam-to-biomass ratio and in-situ steam generation on tar formation

Fuel Processing Technology
The shift from high-quality woodchips to low-quality feedstocks increasingly shapes biomass gasification. Small- to medium-scale plants face challenges from heterogeneous feedstock and tar formation, with a research gap in producing energetically useable
M. Kresta, D. Weilguni, J. Keifenheim, J. Krüger, R. Salchner, A. Hofmann, C. Pfeifer   +6 more
doaj   +1 more source

A novel approach for modeling bubbling gas–solid fluidized beds [PDF]

, 2011
A phenomenological discrete bubble model is proposed to help in the design and dynamic diagnosis of bubbling fluidized beds. An activation region mechanism is presented for bubble formation, making it possible to model large beds in a timely manner.
Acosta Iborra, Antonio, Santana Santana, Domingo José, Sánchez Delgado, Sergio, Villa Briongos, Javier   +3 more
core   +3 more sources

Enhanced Infection Resistance and Regenerative Healing of Titanium Implants via Peptide‐Loaded Biodegradable Coatings

Advanced Materials Technologies, EarlyView.
This study presents a new biodegradable coating for titanium implants using a natural antimicrobial peptide, caerin 1.9. Applied via solvent casting, the coating offers sustained antibacterial protection and promotes healing. Tested on 3D‐printed porous titanium scaffolds, it effectively prevented infection—including against resistant bacteria—while ...
Hejie Li, Tianfang Wang, Nicolas Soro, Guoying Ni, Meg Allom, D. İpek Kurtböke, Xiaosong Liu, Damon Kent   +7 more
wiley   +1 more source

Study on the state of play of energy efficiency of heat and electricity production technologies [PDF]

, 2012
This report provides an overview of the current state of the art of the technologies used in EU for power and heat generation as well as combined heat and power generation (cogeneration or CHP). The technologies are categorised per fuel but also in terms
ANDREWS DAVID, CARLSSON Johan, PAPAIOANNOU IOULIA, VATOPOULOS KONSTANINOS, ZUBI GHASSAN   +4 more
core   +1 more source