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Peer Reviewed
See detailDevelopment of a digital accelerometer for low-frequency structural vibration measurement
Kraft, Michaël ULiege; Lewis, Christopher P.; Hesketh, Thomas G.

in The 1996 Sensor and Transducer Conference Proceedings (1996)

Detailed reference viewed: 9 (1 ULiège)
Peer Reviewed
See detailThe development of a digital accelerometer
Lewis, Christopher P.; Kraft, Michaël ULiege; Hesketh, Thomas G.

in Proceedings 27th ISATA - International Symposium on Automotive Technology and Automation (1994)

Detailed reference viewed: 14 (0 ULiège)
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See detailDEVELOPMENT OF A DISCRETE EVENT SIMULATION BASED TOOL FOR OFFSHORE LOGISTICS IN WIND FARM INSTALLATION
Muhabie, Yohannes Tekle ULiege

Doctoral thesis (2016)

The o shore wind energy development has shown a progress in the last ten years. Distance from the coast and the depth of the water are increasing continuously. The transport and installation of o -shore ... [more ▼]

The o shore wind energy development has shown a progress in the last ten years. Distance from the coast and the depth of the water are increasing continuously. The transport and installation of o -shore wind turbines is highly dependent on weather condition at sea. Delaying an activity in the logistics chain could have a signi cant impact on overall project completion. Hence there is a need to have a well-organized and thoroughly analyzed planning of the overall processes starting from the producers sites until the o shore site where the turbines will be installed. The weather conditions and the installation strategies are the major limit factors in uencing the o shore wind farm installations. In this thesis a Discrete Event Simulation (DES) based tool has been developed for o shore logistics in wind farm installation. It takes into account the weather restriction limits (wind speed and wave height), distance matrix, vessel characteristics and installation strategies. The logistics model maps out the activities of the o shore wind farm installations. Both historical and probabilistic weather data approaches have been implemented, analyzed and compared. The results indicated that the probabilistic approach is highly a ected by the random seed numbers used to set up the stochastic behavior of the input variable. Application of the developed tools to real O shore Wind Farm (OWF) con guration illustrated that there is a good agreement between the results obtained from the two approaches. However, it has been identi ed that the probabilistic approach may slightly underestimate the project lead time compared to the results obtained using historical data. Furthermore, weather downtime and sensitivity analysis have been carried out for di erent weather scenarios in order to identify the parameters that a ect the logistic chain signi cantly during the o shore wind farm installation. In this context, it is indicated that the lifting operation (limited by wind speed) causes the highest down time compared to other activities and improving the lifting operations could result in a signi cant reduction (10-15 %) in the overall project completion time. In conclusion, overall analysis indicated that the application of a DES tool improves the decision support system including the planning and control of the logistics processes of the o shore wind farm installation, reducing the associated risks. [less ▲]

Detailed reference viewed: 31 (5 ULiège)
Peer Reviewed
See detailDevelopment of a Dynamic 3-D Nonlinear Computer Program
Fonder, Ghislain ULiege; Charlier, Robert ULiege; Habraken, Anne ULiege et al

in Convention Européenne de la Construction métallique (1986)

Detailed reference viewed: 45 (5 ULiège)
Peer Reviewed
See detailDevelopment of a dynamic guidance model for car drivers in the city center of Liège, Belgium.
Marchal, Jean ULiege; Ndiaye, Alassane-Ballé ULiege

in Proceedings of the INFORMS Montreal Spring meeting 1998 (1998)

Detailed reference viewed: 14 (1 ULiège)
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Peer Reviewed
See detailThe development of a European questionnaire for quality of life in patients with vertebral osteoporosis
Lips, P; Agnusdei, D; Caulin, F et al

in Scandinavian Journal of Rheumatology (1996), 25(103), 84-85

Detailed reference viewed: 8 (2 ULiège)
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Peer Reviewed
See detailDevelopment of a field test to evaluate colostral immunity transfer in young calves
Guyot, Hugues ULiege; Dubreucq, Pierre ULiege; Lebreton, Pascal et al

Poster (2015, June)

Failure of transfer of immunity from dam’s colostrum generates a negative effect on calves’ health leading to increased morbidity and mortality (De Nise et al., 1989; Wittum and Perino, 1995). Unawareness ... [more ▼]

Failure of transfer of immunity from dam’s colostrum generates a negative effect on calves’ health leading to increased morbidity and mortality (De Nise et al., 1989; Wittum and Perino, 1995). Unawareness of the colostral quality and variation in the calf’s capability to efficiently absorb immunoglobulins (IgG) supports the need for specific evaluation of the immunity transfer at a herd level. The aim of the study was to evaluate the performances of a field test for passive immunity transfer (PIT) in calves. [less ▲]

Detailed reference viewed: 80 (15 ULiège)
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Peer Reviewed
See detailDevelopment of a field test to evaluate colostrum quality (IgG) in cattle
Guyot, Hugues ULiege; Dubreucq, Pierre ULiege; Lebreton, Pascal et al

Poster (2015, June)

Failure of transfer of immunity from dam’s colostrum generates a negative effect on calves’ health leading to increased morbidity and mortality (De Nise et al., 1989; Wittum and Perino, 1995 ... [more ▼]

Failure of transfer of immunity from dam’s colostrum generates a negative effect on calves’ health leading to increased morbidity and mortality (De Nise et al., 1989; Wittum and Perino, 1995). Immunoglobulins (IgG) content of colostrum is highly variable and cannot be predicted. Distinguishing good from poor quality colostrum allows to adapt the volume administered or to initiate ancillary procedures for a sufficient transfer of IgG. The aim of the study was to evaluate the performances of a field test for colostrum quality determination. [less ▲]

Detailed reference viewed: 88 (10 ULiège)
See detailDevelopment of a financial model for Geriatric Day Hospitals
Gillain, Daniel ULiege; Fecher-Bourgeois, Fabienne ULiege; Velghe, A. et al

Poster (2009)

Detailed reference viewed: 33 (19 ULiège)
Peer Reviewed
See detailDevelopment of a flow cytometry method for the characterization of yeast cells surface hydrophobicity
Aguedo, Mario ULiege; Waché, Y.; Sequeira-Le Grand, A. et al

in Morphologie : Bulletin de l'Association des Anatomistes (2001, October), 85(270), 30

Detailed reference viewed: 24 (0 ULiège)
Full Text
See detailDevelopment of a full fiber-coupled laser ultrasound robotic system using two-wave mixing 1064 nm detection and 532 nm YAG generation
Vandenrijt, Jean-François ULiege; Simar, Juan Felipe ULiege; Thizy, Cédric ULiege et al

in Laser Ultrasonics and Advanced Sensing (2015, June)

An all-fibered laser ultrasonic system for complex shape composite parts is presented. It is based on two-wave mixing detection and a long pulse laser working at 1064 nm and generation by a fibered YAG Q ... [more ▼]

An all-fibered laser ultrasonic system for complex shape composite parts is presented. It is based on two-wave mixing detection and a long pulse laser working at 1064 nm and generation by a fibered YAG Q-switch laser working at 532 nm. A compact optical head combining both beams is interfaced to a robot system for scanning. Some practical issues of this system are studied. [less ▲]

Detailed reference viewed: 73 (18 ULiège)
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Peer Reviewed
See detailDevelopment of a general method for the verification of composite beams against lateral torsional buckling in the erection phase
Boissonnade, N.; Cajot, L. G.; Haller, M. et al

in Proceedings of the 2005 Eurosteel Conference on Steel and Composite Structures (2005)

Detailed reference viewed: 30 (3 ULiège)
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Peer Reviewed
See detailDevelopment of a generalized steady-state simulation framework for positive displacement compressors and expanders
Bell, Ian ULiege; Lemort, Vincent ULiege; Groll, Eckhard et al

in Proceedings of the International Conference on Compressors and their Systems 2013 (2013)

In this paper, a generalized framework is presented that can be used to simulate the steady-state performance of a wide range of positive displacement compressors and expanders (scroll, piston, screw ... [more ▼]

In this paper, a generalized framework is presented that can be used to simulate the steady-state performance of a wide range of positive displacement compressors and expanders (scroll, piston, screw, rotary, spool, etc.). The complete simulation algorithm is described, and an emphasis is placed on the numerical methods required to obtain robust behavior of the simulation. This formulation has been implemented into an open-source software package entitled PDSim written in the Python language. PDSim is the first open-source generalized compressor and expander simulation package. The source code can be freely obtained from http://pdsim.sf.net [less ▲]

Detailed reference viewed: 168 (7 ULiège)
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Peer Reviewed
See detailDevelopment of a generic micellar electrokinetic chromatography method for the separation of 15 antimalarial drugs as a tool to detect medicine counterfeiting
Lamalle, Caroline ULiege; Marini Djang'Eing'A, Roland ULiege; Debrus, Benjamin ULiege et al

in Electrophoresis (2012), 33

Since antimalarial drugs counterfeiting is dramatically present on the African market, the development of simple analytical methods for their quality control is of great importance. This work consists in ... [more ▼]

Since antimalarial drugs counterfeiting is dramatically present on the African market, the development of simple analytical methods for their quality control is of great importance. This work consists in the CE analysis of 15 antimalarials (artesunate, artemether, amodiaquine, chloroquine, piperaquine, primaquine, quinine, cinchonine, mefloquine, halofantrine, sulfadoxine, sulfalen, atovaquone, proguanil, and pyrimethamine). Since all these molecules cannot be ionized at the same pH, MEKC was preferred because it also allows separation of neutral compounds. Preliminary experiments were first carried out to select the most crucial factors affecting the antimalarials separation. Several conditions were tested and four parameters as well as their investigation domain were chosen: pH (5–10), SDS concentration (20–90 mM), ACN proportion (10–40%), and temperature (20–35°C). Then, the experimental design methodology was used and a central composite design was selected. Mathematical modeling of the migration times allowed the prediction of optimal conditions (29°C, pH 6.6, 29 mM SDS, 36% ACN) regarding analyte separation. The prediction at this optimum was verified experimentally and led to the separation of 13 compounds within 8 min. Finally, the method was successfully applied to the quality control of African antimalarial medicines for their qualitative and quantitative content. [less ▲]

Detailed reference viewed: 63 (14 ULiège)