Search Results - "Aggelis, G"

High lipid accumulation in Yarrowia lipolytica cultivated under double limitation of nitrogen and magnesium by Bellou, S., Triantaphyllidou, I.-E., Mizerakis, P., Aggelis, G.

“…•Yarrowia lipolytica seems to be an unusual oleaginous microorganism.•Under double nitrogen and magnesium limitation Y. lipolytica accumulated 47.5%…”
Get full text

Non-Destructive Evaluation for Corrosion Monitoring in Concrete: A Review and Capability of Acoustic Emission Technique by Zaki, Ahmad, Chai, Hwa Kian, Aggelis, Dimitrios G, Alver, Ninel

“…Corrosion of reinforced concrete (RC) structures has been one of the major causes of structural failure. Early detection of the corrosion process could help…”
Get full text

Classification of cracking mode in concrete by acoustic emission parameters by Aggelis, Dimitrios G.

“…The study occupies with acoustic emission monitoring of several types of concrete during bending. The signals emitted at the different fracturing stages…”
Get full text

Lipid production by yeasts growing on biodiesel‐derived crude glycerol: strain selection and impact of substrate concentration on the fermentation efficiency by Tchakouteu, S.S, Kalantzi, O, Gardeli, Chr, Koutinas, A.A, Aggelis, G, Papanikolaou, S

“…AIMS: To screen yeasts in relation to the potential to produce single cell oil (SCO) from biodiesel‐derived glycerol and to enhance SCO production in Lipomyces…”
Get full text

Sensor Size Effect on Rayleigh Wave Velocity on Cementitious Surfaces by Ospitia, Nicolas, Aggelis, Dimitrios G, Lefever, Gerlinde

“…Concrete properties and damage conditions are widely evaluated by ultrasonics. When access is limited, the evaluation takes place from a single surface. In…”
Get full text

Investigation of different fracture modes in cement-based materials by acoustic emission by Aggelis, D.G., Mpalaskas, A.C., Matikas, T.E.

“…Characterization of the cracking mode in cementitious materials allows evaluations concerning the remaining life of the structure since in general, shear-like…”
Get full text

The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media by Lefever, Gerlinde, Snoeck, Didier, De Belie, Nele, Van Vlierberghe, Sandra, Van Hemelrijck, Danny, Aggelis, Dimitrios G

“…To mitigate autogenous shrinkage in cementitious materials and simultaneously preserve the material's mechanical performance, superabsorbent polymers and…”
Get full text

Evaluation of the Self-Healing Ability of Mortar Mixtures Containing Superabsorbent Polymers and Nanosilica by Lefever, Gerlinde, Snoeck, Didier, Aggelis, Dimitrios G, De Belie, Nele, Van Vlierberghe, Sandra, Van Hemelrijck, Danny

“…Addition of superabsorbent polymers (SAPs) to cementitious mixtures promotes the self-healing ability of the material. When cracking occurs; SAPs present…”
Get full text

Improved crack monitoring in structural concrete by combined acoustic emission and digital image correlation techniques by Omondi, Benard, Aggelis, Dimitrios G, Sol, Hugo, Sitters, Cox

“…Crack monitoring is crucial for safety, cost-effective design and maintenance of concrete structures. Most stand-alone crack monitoring techniques have some…”
Get full text

Single cell oil production from rice hulls hydrolysate by Economou, Ch.N., Aggelis, G., Pavlou, S., Vayenas, D.V.

“…► Rice hull hydrolysate was used as feedstock for microbial lipids production. ► The oleaginous fungus Mortierella isabellina is able to convert…”
Get full text

Lipid production and characterization by Mortierella (Umbelopsis) isabellina cultivated on lignocellulosic sugars by Gardeli, C., Athenaki, M., Xenopoulos, E., Mallouchos, A., Koutinas, A.A., Aggelis, G., Papanikolaou, S.

“…Aims To study and characterize the lipids produced by Mortierella (Umbelopsis) isabellina, during its growth on mixtures of glucose and xylose. Methods and…”
Get full text

Dimension Effects on the Acoustic Behavior of TRC Plates by Ospitia, Nicolas, Aggelis, Dimitrios G, Tsangouri, Eleni

“…Acoustic emission (AE) is a monitoring technique that has proven its suitability in and outside of the laboratory in characterizing the structural condition of…”
Get full text

The Influence of Superabsorbent Polymers and Nanosilica on the Hydration Process and Microstructure of Cementitious Mixtures by Lefever, Gerlinde, Aggelis, Dimitrios G., De Belie, Nele, Raes, Marc, Hauffman, Tom, Van Hemelrijck, Danny, Snoeck, Didier

“…Superabsorbent polymers (SAPs) are known to mitigate the development of autogenous shrinkage in cementitious mixtures with a low water-to-cement ratio…”
Get full text

Modeling of single-cell oil production under nitrogen-limited and substrate inhibition conditions by Economou, C.N., Aggelis, G., Pavlou, S., Vayenas, D.V.

“…Sweet sorghum extract was used as substrate for lipid accumulation by the oleaginous fungus Mortierella isabellina in batch cultures. Various initial sugar…”
Get full text

Elastic Wave Monitoring of Cementitious Mixtures Including Internal Curing Mechanisms by Lefever, Gerlinde, Snoeck, Didier, De Belie, Nele, Van Hemelrijck, Danny, Aggelis, Dimitrios G

“…The mitigation of autogenous shrinkage in cementitious materials by internal curing has been widely studied. By the inclusion of water reservoirs, in form of…”
Get full text

Cyclic loading of a SiC-fiber reinforced ceramic matrix composite reveals damage mechanisms and thermal residual stress state by Dassios, Konstantinos G., Aggelis, Dimitris G., Kordatos, Evangelos Z., Matikas, Theodore E.

“…This study reports on the effects of axial thermal residual stresses, cyclic loading and presence of notches on the tensile performance of a…”
Get full text

Crack sealing and damage recovery monitoring of a concrete healing system using embedded piezoelectric transducers by Tsangouri, Eleni, Karaiskos, Grigorios, Aggelis, Dimitrios G, Deraemaeker, Arnaud, Van Hemelrijck, Danny

“…The autonomous healing performance of concrete is experimentally verified by applying a technique based on the ultrasonic pulse velocity method using embedded…”
Get full text

Acoustic Emission for Evaluating the Reinforcement Effectiveness in Steel Fiber Reinforced Concrete by Mpalaskas, Anastasios C., Matikas, Theodore E., Aggelis, Dimitrios G., Alver, Ninel

“…Steel fiber reinforcement in concrete strongly enhances its ductility and toughness. This is basically due to the additional fracture mechanisms and energy…”
Get full text

Reservoir-Vascular Tubes Network for Self-Healing Concrete: Performance Analysis by Acoustic Emission, Digital Image Correlation and Ultrasound Velocity by Tsangouri, Eleni, Van Loo, Corentin, Shields, Yasmina, De Belie, Nele, Van Tittelboom, Kim, Aggelis, Dimitrios G.

“…A novel linear reservoir-vascular tubes network is presented in this work and the design efficacy is explored by testing concrete beams loaded on bending and…”
Get full text

Biotechnological valorisation of raw glycerol discharged after bio-diesel (fatty acid methyl esters) manufacturing process: Production of 1,3-propanediol, citric acid and single cell oil by Papanikolaou, Seraphim, Fakas, Stylianos, Fick, Michel, Chevalot, Isabelle, Galiotou-Panayotou, Maria, Komaitis, Michael, Marc, Ivan, Aggelis, George

“…Raw glycerol, byproduct from bio-diesel production process, is used as carbon substrate in several biotechnological applications. Using Clostridium butyricum…”
Get full text