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See detailA design for living: metaleptic devices and trends of gnostic imagination in contemporary science-fiction
Claisse, Frédéric ULg

Conference (2012, October)

As a narrative pattern and a cultural motif, the confusion between fictional worlds and reality traditionally leads to metaphysical arguments about liberty and destiny. Despite their drawing heavily on ... [more ▼]

As a narrative pattern and a cultural motif, the confusion between fictional worlds and reality traditionally leads to metaphysical arguments about liberty and destiny. Despite their drawing heavily on scientific imagination and technoscientific artefacts, science fiction movies exploring that theme never really broke with the way it has been treated since Calderon de la Barca’s Life is a dream: the hero’s quest leads him to doubt his own identity and dispute the ontological status of the world he lives in, leaving him and the viewer perplexed as to the ultimate nature of things. Yet, in the last fifteen years, an increasing number of science-fiction movies renewed that interrogation, notably by placing the issue of design at the centre of the plot: fictional worlds are not only denounced as fictional, but also shown as works in progress, literally rebuilt according to the plan of not-so-hidden designers acting as demiurges. In Dark City, Vanilla Sky or, more recently, Inception and The Adjustment Bureau, the emphasis on design and architecture together with the use of computational metaphors result in the promotion of one particular world to the status of “reference” universe, to be held as more “real” than other, fabricated and computed worlds made accessible by sophisticated devices operating as metaleptic instruments (such as Neo’s cable plug or the “bio-ports” in ExistenZ). This paper wishes to explore this shift towards “gnostic", Matrix-like science-fictional narratives, particularly in relation to the dramatic development of networking and surveillance capabilities that occurred during the same period. [less ▲]

Detailed reference viewed: 114 (12 ULg)
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See detailDesign for polarizing holographic optical elements
Habraken, Serge ULg; Renotte, Yvon; Roose, Stéphane ULg et al

in Applied Optics (1995), 34(19), 3595-3602

We present results of the application of a three-dimensional rigorous-vector coupled-wave theory to the design of polarizing holographic optical elements. Two different cases have been selected giving ... [more ▼]

We present results of the application of a three-dimensional rigorous-vector coupled-wave theory to the design of polarizing holographic optical elements. Two different cases have been selected giving rise to two types of element, one of which is completely original. Experimental realizations were performed. The recording material was dichromated gelatin because of its outstanding performance related to diffraction efficiency. A fair agreement between the theoretical previsions and the experimental results was achieved. [less ▲]

Detailed reference viewed: 28 (9 ULg)
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See detailDesign guidelines for construction of energy efficient buildings in North-East India
Singh, Manoj Kumar ULg; Mahapatra, Sadhan

Scientific conference (2006, February)

Energy and Built Environment are closely related, the more is the energy consumption the worse is the environment degradation. The use of natural lighting and the use of solar energy for heating and ... [more ▼]

Energy and Built Environment are closely related, the more is the energy consumption the worse is the environment degradation. The use of natural lighting and the use of solar energy for heating and cooling as well as enhanced natural ventilation not only reduce the commercial energy demand but minimize the impact on environment too. Traditional buildings constructed long back in the different climatic zones of the region have a number of passive features which help in controlling the indoor environment mostly by promoting ventilation, as humidity level is alarmingly high in this region. There are exhibits of indigenous use of locally available materials and techniques to construct buildings that are adapted to local climatic conditions or even to the ethnicity of the community. Guidelines are prepared taking into consideration the different features like site, orientation & planform, building envelope and daylight for low-rise residential buildings; since these are very common in this region. [less ▲]

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See detailDesign guidlines - Deliverable D.13 - Robustimpact
Charlier, Marion; Hanus, François; Vassart, Olivier et al

Report (2016)

The present document details the design guidelines which emanates from the RobustImpact project. The reasoning used is depicted below in Figure 1-1. The first step is to define the impact scenario and its ... [more ▼]

The present document details the design guidelines which emanates from the RobustImpact project. The reasoning used is depicted below in Figure 1-1. The first step is to define the impact scenario and its key parameters. Then the impact can be characterized as a hard impact or as a soft impact. The first option assumes that the kinetic energy of the impactor is absorbed by the impactor itself while the second option assumes that the kinetic energy of the impactor is mainly absorbed by the column, thus leading to plastic deformations and the activation of geometrical non-linear effects in the column. If the soft impact is considered, the buckling resistance of the column must be examined in order to evaluate if the impacted column shows sufficient residual resistance after the impact. If this is not the case, the structure will resist if it is able to sustain the load initially carried by the impacted column by redistributing it in the damaged structure, i.e. if it is able to activate alternative load path. The resistance brought by other structural elements will then be evaluated. If the impacted column is a peripheral column, the yield line theory is used to evaluate the resistance of both slab and beams. In case of a central column, Bailey’s method evaluating the slab resistance taking into account the membrane effect is used to determine the contribution of the slab. The contribution of the beams is then quantified by evaluating the corresponding P-u curve. All the methods have been validated using FEM softwares. Since the project concerns structures whose columns are impacted by vehicles, the accidental load combination must be considered. In addition, the yield strength of the steel should be considered as 𝑓𝑦,𝑑𝑦𝑛= 𝜇.𝑓𝑦> 𝑓𝑦 . Indeed was proved than the steel mechanical properties are better under dynamic loading. Nevertheless, there is for the moment no available quantification for the majoring coefficient that should apply to 𝑓𝑦 : this could be done realizing tests. [less ▲]

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See detailDesign handbook for frame design including joint behaviour
Jaspart, Jean-Pierre ULg; Maquoi, René ULg

in Proceedings of the First Annual Workshop, Targeted Research Action of the European Communities on Environmentally Friendly Construction Technologies (1997)

Detailed reference viewed: 254 (11 ULg)
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See detailDesign handbook for frame design including joint behaviour
Jaspart, Jean-Pierre ULg; Maquoi, René ULg

in Proceedings of the IABSE Colloquium on Semi-Rigid Structural Connections (1996)

Detailed reference viewed: 29 (1 ULg)
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See detailDesign Method for Subsonic and Transonic Cascade with Prescribed Mach Number Distribution
Léonard, Olivier ULg; Van den Braembussche, René

in Proceedings of the ASME Turbo Expo 1991 (1991, June)

A iterative procedure for blade design, using a time marching procedure to solve the unsteady Euler equations in the blade-to-blade plane, is presented. A flow solver, which performs the analysis of the ... [more ▼]

A iterative procedure for blade design, using a time marching procedure to solve the unsteady Euler equations in the blade-to-blade plane, is presented. A flow solver, which performs the analysis of the flow field for a given geometry, is transformed into a design method. This is done by replacing the classical slip condition (no normal velocity component) by other boundary conditions, in such a way that the required pressure or Mach number distribution may be imposed directly on the blade. The unknowns are calculated on the blade wall using the so-called compatibility relations. Since the blade shape is not compatible with the required pressure distribution, a nonzero velocity component normal to the blade wall evolves from the new flow calculation. The blade geometry is then modified by resetting the wall parallel to the new flow field, using a transpiration technique, and the procedure is repeated until the calculated pressure distribution has converged to the required one. Examples for both subsonic and transonic flows are presented and show a rapid convergence to the geometry required for the desired Mach number distribution. An important advantage of the present method is the possibility to use the same code for the design and the analysis of a blade. [less ▲]

Detailed reference viewed: 46 (1 ULg)
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See detailDesign Method for Subsonic and Transonic Cascade with Prescribed Mach Number Distribution
Léonard, Olivier ULg; Van den Braembusche, René

in Journal of Turbomachinery (1992), 114(3), 553-560

An iterative procedure for blade design, using a time marching procedure to solve the unsteady Euler equations in the blade-to-blade plane, is presented. A flow solver, which performs the analysis of the ... [more ▼]

An iterative procedure for blade design, using a time marching procedure to solve the unsteady Euler equations in the blade-to-blade plane, is presented. A flow solver, which performs the analysis of the flow field for a given geometry, is transformed into a design method. This is done by replacing the classical slip condition (no normal velocity component) by other boundary conditions, in such a way that the required pressure or Mach number distribution may be imposed directly on the blade. The unknowns are calculated on the blade wall using the so-called compatibility relations. Since the blade shape is not compatible with the required pressure distribution, a nonzero velocity component normal to the blade wall evolves from the new flow calculation. The blade geometry is then modified by resetting the wall parallel to the new flow field, using a transpiration technique, and the procedure is repeated until the calculated pressure distribution has converged to the required one. Examples for both subsonic and transonic flows are presented and show a rapid convergence to the geometry required for the desired Mach number distribution. An important advantage of the present method is the possibility to use the same code for the design and the analysis of a blade. [less ▲]

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See detailDesign Methods
Rigo, Philippe ULg; Karr, D.; Comité IV.2, ISSC

in Report of the Technical Committee IV.2 of ISSC (2009)

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See detailDESIGN METHODS Report of Technical Committee IV.2 of ISSC
Pradillon, Jean Yves; Rigo, Philippe ULg; ISSC IV.2 Commiteee

in 18th INTERNATIONAL SHIP AND OFFSHORE STRUCTURES CONGRESS (ISSC) (2012)

Concern for the synthesis of the overall design process for marine structures, and its integration with production, maintenance and repair. Particular attention shall be given to the roles and ... [more ▼]

Concern for the synthesis of the overall design process for marine structures, and its integration with production, maintenance and repair. Particular attention shall be given to the roles and requirements of computer-based design and production, and to the utilization of information technology. [less ▲]

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See detailDesign Monopile Foundation of Offshore Wind Turbines
Mai, Anh Quang ULg

Master's dissertation (2012)

Design optimization is crucial to the development of the offshore wind turbine industry. This time consuming process is better to be done with a number of input parameters that is as short as possible ... [more ▼]

Design optimization is crucial to the development of the offshore wind turbine industry. This time consuming process is better to be done with a number of input parameters that is as short as possible. Whether the foundation pile part can be neglected in the design optimization process of an offshore wind turbine structure is a question need to be answer. In order to see the importance of the presence of the foundation pile in dynamic behavior of the whole structure, dimensions of the foundation pile must be determined basing on requirements in ultimate limit state and serviceability limit state in current design standards. Afterward, the differences in dynamic behavior between a fixed- at-seabed tower model and a tower with foundation model must be observed. Beam nonlinear Winkler Foundation model in addition to gapping and non-gapping behavior in pile-soil interface were used to model the foundation. With the chosen offshore wind turbine project of 7MW and 115m high to seabed, a foundation pile with a penetration length of 26m, diameter of 6m and wall thickness of 8cm had been found. The dynamic behavior of the two models showed that it was not on the safe side if the foundation was neglected in design optimization process. And that the internal damping of the soil was the most important factor in behavior of the structure. These results will be useful for reconsidering parameters in design optimization process of monopile offshore wind turbines as well as choosing suitable methods to solve dynamic equations in the optimization procedure. [less ▲]

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See detailDesign of a biofilm reactor comprising a metal structured packing for the production of lipopeptides by B. subtilis
Zune, Quentin ULg; Ongena, Marc ULg; Toye, Dominique ULg et al

Poster (2012, February 08)

Abstract : The design of a new single species biofilm bioreactor has been investigated. Bacillus subtilis S499 has been chosen as a model organism for the production of lipopetides. Nevertheless ... [more ▼]

Abstract : The design of a new single species biofilm bioreactor has been investigated. Bacillus subtilis S499 has been chosen as a model organism for the production of lipopetides. Nevertheless, considering the surface active properties for this kind of metabolite, processes based on submerged culture in stirred-tank bioreactor involve the use of important amount of antifoam and therefore downstream processes are tedious. In this work, an original process was developed with an experimental setting leading to the suppression of foam formation during the culture. B. subtilis S499 makes a biofilm on a stainless steel structured packing in the top of a bioreactor, nutrient and oxygen supply being carried out by the media recirculation as liquid film on the packing. Lipopeptides secreted by biofilm are accumulated in the liquid phase under the packing and can reach concentrations as high as 800 mg/l. The colonization of the packing by the biofilm has been monitored by X-ray tomography. [less ▲]

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See detailDesign of a convective labscale dryer working either with superheated steam or air
Fraikin, Laurent ULg; Salmon, Thierry ULg; Léonard, Angélique ULg

in Proceedings of the 5th European Drying Conference (EuroDrying'2015) (2015)

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See detailDesign of a decision tool for hydromorphological restoration of water bodies in Walloon Region
Peeters, Alexandre ULg; Hallot, Eric ULg; Verniers, Gisèle et al

Poster (2010, May 05)

The pilot project WALPHY (LIFE + Environment LIFE07 ENV/B/000038, UE-funded) develops a structured approach aiming at improving hydromorphological quality of the upstream Meuse basin in order to achieve ... [more ▼]

The pilot project WALPHY (LIFE + Environment LIFE07 ENV/B/000038, UE-funded) develops a structured approach aiming at improving hydromorphological quality of the upstream Meuse basin in order to achieve the “good ecological status” required by the Water Framework Directive (WFD 2000/60). It began in January 2009 for a period of 5 years. River’s biological recovery needs the recovery of river’s structure and physical dynamics. Returning to "good ecological status" inevitably involves physical restoration of affected rivers. Physical component of aquatic environment acts as a limiting factor for their functioning. Three types of modification are key obstacles for river good ecological status: (i) fluxes alteration (discharge, sedimentation. . . ), (ii) forms alteration (uniform facies. . . ) and (iii) biotopes access alteration (lateral connections breaks, modification of the continuity upstream/ downstream. . . ). Therefore hydromorphology is needed to implement the WFD. To respond to this legal necessity, we develop a unique, useful and suitable methodology in Walloon Region to determine and schedule river physical quality restoration works. This methodology has been applied on 3 “risk water bodies”. The works are based on two axes : longitudinal continuity and transversal continuity. The two first selected water bodies (Bocq river, eastern tributary of the Meuse) seem to be convenient for the restoration works which concern the longitudinal continuity due to the presence of dams and other obstacles usually between 1 and 3 m high. These works consist in dam management (weir removal or fish passage) taking into account hydromorphological (bedload transport) and biological (invertebrate or fish species free movement) impacts. The third water bodies (Eau Blanche river, western tributary of the Meuse) presents straightened rivers with artificial banks, witch consequently own bad connections between the stream and its floodplain. This water bodies should therefore be appropriated for the works based on the transversal continuity recovery. They consist in enhancing straightened river channels, restoring meanders or bank restoration. The first river restoration works will take place from summer 2010. A monitoring has already been undertaken to draw up the situation before the restoration works, witch will be able to compare to the situations during and after works. In addition, a natural site has been chosen to enable any comparison with the intervention sites. The geomorphological monitoring is based on physical and sedimentological parameters (substrate cartography, velocity measures, stream channel DEM, topography and sedimentological index). The ecological monitoring consists in analysing the physical and chemical parameters (turbidity, suspended sediment load). It also analyses the biological quality through 3 indicators: macrophytes, macroinvertebrates and fishes. Among other, a microhabitats method has been improved and applied on 3 intervention sites and 1 natural site. The microhabitats cartography results from both the flow velocity cartography and the substrate cartography. With this method, the physical quality of each intervention site could be compared with the natural site and above all with the future situation. Our method is also useful to inventory precisely invertebrates and to characterise fish habitats. [less ▲]

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See detailDesign of a foil-coiled inductor for the heating of steel wires
De Coster, Jeroen; Deliège, Geoffrey ULg; Henrotte, François et al

in Computation in Electromagnetics, CEM 2002, Bournemouth, UK, 8-11 April, 2002 (2002)

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See detailDesign of a foil-coiled inductor for the heating of steel wires
De coster, Jeroen; Deliège, Geoffrey ULg; Henrotte, François et al

in IEE Proceedings - Science, Measurement & Technology (2002), 149(5), 203-206

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See detailDesign of a fungal biofilm reactor for recombinant protein production from Aspergillus oryzae
Zune, Quentin ULg; Delepierre, Anissa ULg; Bauwens, Julien ULg et al

Poster (2014, September 07)

Fungi are microorganisms exhibiting high secretive power of various metabolites and have the ability to perform post-translational modifications during protein synthesis. In the field of fermentation ... [more ▼]

Fungi are microorganisms exhibiting high secretive power of various metabolites and have the ability to perform post-translational modifications during protein synthesis. In the field of fermentation industry, they are ideal hosts for secondary metabolites and recombinant protein production. At the industrial-scale, equipments usually required for solid-state or submerged fermentation of filamentous fungi have demonstrated their limitations in terms of productivity, mass transfers or products recovery (1, 2). Recently, fungal biofilm reactors were designed to combine advantages from submerged and solid-state culture and reveal their usefulness for greater secondary metabolites production relative to submerged culture conditions (3). In our work, we propose the design of a fungal biofilm reactor for a recombinant protein production from an Aspergillus oryzae strain containing a GFP reporter gene system under the control of a promoter specifically induced in solid-state conditions. The fungal biofilm reactor is composed of a metal structured packing, having the function of inert support for biofilm growth, immerged or aspersed by a liquid medium. Whereas recombinant protein production is not significantly different at the flask-scale between submerged and biofilm conditions, productivity is higher in the submerged conditions at the bioreactor-scale. Presence of recombinant proteins entrapped in the biofilm matrix highlights a diffusion constraint and a lower mass transfer in our fungal biofilm reactor. However, persistence of a free liquid biomass of low viscosity and fungal biomass retention on the support are attractive for the implementation of a continuous process in our fungal biofilm reactor. Further studies will consider a 2-D proteomic comparison of the extracellular medium from fungal biofilm reactor and submerged culture conditions in order to better understand proteins secretion and identify over-expressed proteins in biofilm conditions. [less ▲]

Detailed reference viewed: 124 (14 ULg)
See detailDesign of a linear transverse flux actuator
Vande Sande, Hans; Deliège, Geoffrey ULg; Hameyer, Kay et al

in 15th International conference on electrical machines (ICEM), n°152, Brugge, Belgium, August 25-28, 2002 (2002)

Detailed reference viewed: 23 (2 ULg)