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Peer Reviewed
See detailCharacterizing of protein dataset with GO ontology
Dmitrieva, Joelia Borisnova; Florea, B; Li, N et al

Poster (2012, September 09)

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See detailCharacterizing simpler recognizable sets of integers
Rigo, Michel ULg

in Lecture Notes in Computer Science (2002), 2420

For the k-ary numeration system, we characterize the sets of integers such that the corresponding representations make up a star-free regular language. This result can be transposed to some linear ... [more ▼]

For the k-ary numeration system, we characterize the sets of integers such that the corresponding representations make up a star-free regular language. This result can be transposed to some linear numeration systems built upon a Pisot number like the Fibonacci system and also to k-adic numeration systems. Moreover we study the problem of the base dependence of this property and obtain results which are related to Cobham's Theorem. [less ▲]

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See detailCharacterizing Simpler recognizable sets of integers
Rigo, Michel ULg

in Studia Logica (2004), 76

For a given numeration system U, a set X of integers is said to be U-star-free if the language of the normalized U-representations of the elements in X is star-free. Adapting a result of McNaughton and ... [more ▼]

For a given numeration system U, a set X of integers is said to be U-star-free if the language of the normalized U-representations of the elements in X is star-free. Adapting a result of McNaughton and Papert, we give a first-order logical characterization of these sets for various numeration systems including integer base systems and the Fibonacci system. For k-ary systems, the problem of the base dependence of this property is also studied. Finally, the case of k-adic systems is developed. [less ▲]

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See detailCharacterizing the morphology of suburban settlements: a method based on a semi-automatic classification of building clusters
de Smet, Fabian; Teller, Jacques ULg

in Landscape Research (2016), 41(1), 113-130

Urban sprawl is transforming our landscapes and rural areas at a spectacular pace. Measuring the strength of the phenomenon and proposing dynamic ways to delineate suburban areas have been the object of ... [more ▼]

Urban sprawl is transforming our landscapes and rural areas at a spectacular pace. Measuring the strength of the phenomenon and proposing dynamic ways to delineate suburban areas have been the object of much debate amongst scientists. The present article takes the view that, beyond measuring and delineating suburban areas, more efforts should be directed to qualifying the morphology of built settlements within these areas. Therefore it proposes a method based on a semi-automatic classification system of building clusters, designed to describe and interpret the phenomenon from a morphological perspective. This method is based on a combination of field surveys with numerical analyses of digital land cadastre maps. The application of this classification system to the suburban area around Liege reveals that, far from developing in a complete indifference of local conditions, contemporary suburban settlements are influenced by landscape structures inherited from the past. [less ▲]

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See detailCharacterizing the operability limits of the HyShot II scramjet through RANS simulations
Emory, Michael; Terrapon, Vincent ULg; Pecnik, René et al

in 17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference 2011, Vol. 2; No AIAA 2011-2282 (2011, April)

Experimental and flight data for hypersonic air-breathing vehicles are both difficult and extremely expensive to obtain, motivating the use of computational tools to enhance our understanding of the ... [more ▼]

Experimental and flight data for hypersonic air-breathing vehicles are both difficult and extremely expensive to obtain, motivating the use of computational tools to enhance our understanding of the complex physics involved. One of the major difficulties in simulating this regime is the interaction between combustion and turbulence, both of which are intrinsically complex processes. This work represents a first attempt at addressing assumptions introduced by physical models representing the turbulent reacting flow on the resulting predictions of the scramjet performance. A combustion model for high-speed flows is introduced and tested for the HyShot II vehicle. A reduced order chemistry model is then derived to investigate the effect of certain chemistry modeling assumptions within the combustion model. These models are used to investigate the unstart of the engine due to thermal choking by increasing the fuel flow rate. It is shown that an abrupt change occurs where a normal shock forms and moves upstream accompanied by a large region of subsonic flow. Additionally scalar metrics are described which are used as early indicators of unstart, to formulate safe operating limits for the scramjet engine. [less ▲]

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See detailCharaktères and voces magicae in the Greek and Latin Iatromagical Papyri
de Haro Sanchez, Magali ULg

Scientific conference (2010, December 08)

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Peer Reviewed
See detailCharakteriseiring des bronchialen remodelligs in eimen model von felinem asthma
Kirschvink, Nathalie; Delvaux, Francois; Vincke, G. et al

Conference (2004)

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See detailCharakterisierung des bronchialen “remodellings” in einem Modell von felinem Asthma
Kirschvink, N.; Delvaux, François ULg; Vincke, G. et al

in 45. Kongress der Deutschen Gesellschaft für Pneumologie - Frankfurt - Allemangne - Mars 2004 (2004, March)

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See detailCharakterisierung des Koaleszenzsverhaltens in Extraktionskolonnen
Kopriwa, Nicole; Pfennig, Andreas ULg

Conference (2013)

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See detailCharakterisierung des Koaleszenzverhaltens in Extraktionskolonnen basierend auf einfachen Laborversuchen
Kopriwa, Nicole; Pfennig, Andreas ULg

in Chemie Ingenieur Technik (2013), 85(9), 1397

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See detailCharakterisierung und Abtrennung von Feinsttrübungen mithilfe von Zentrifugalabscheidern
Macher, Robert; Bol, PornPrapa; Pfennig, Andreas ULg

in Chemie Ingenieur Technik (2014), 86(9), 1465-1465

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See detailCharakterisierung und Abtrennung von Feinsttübungen mithilfe von Zentrifugalabscheidern.
Macher, R; Bol, P; Pfennig, Andreas ULg

in Chemie Ingenieur Technik (2014), 86(9), 1465-1465

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See detailCharakterisierung von Vielstoffgemischen
Reiter, A M; Wallek, T; Mair-Zelenka, P et al

in Book of Abstracts zum 8. Minisymposium der Verfahrenstechnik, 54-56 (2012, May 02)

Peer Reviewed
See detailCharcoal production at mound kiln sites affects pedogenesis and soil capacity to stabilize organic carbon
Cornelis, Jean-Thomas ULg; hardy, Brieuc; Delvaux, Bruno et al

Conference (2011)

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See detailCharcoal records reveal past occurrences of perturbations in the forests of the Kisangani region(RDC): vegetation history of the semi-deciduous rainforest
Tshibamba Mukendi, John; Hubau, Wannes; Morin-Rivat, Julie ULg et al

Poster (2014, April 28)

Introduction. Past disturbances have modified the structure and the floristic composition of Central African rainforests. These perturbations represent a driving force for forest dynamics and they are ... [more ▼]

Introduction. Past disturbances have modified the structure and the floristic composition of Central African rainforests. These perturbations represent a driving force for forest dynamics and they are presumably at the origin of present-day forest mosaics. Fire is a prominent forest disturbance, leaving behind charcoal as a witness of past forest dynamics. The question arises whether quantification, dating and botanical identification of ancient charcoal fragments found in soil layers (pedoanthracology) allows a detailed reconstruction of forest history, including the possible occurrence of past disturbances. Material & methods. We organized pedoanthracological excavations in 6 regrowth sites and 48 sites of primary forests of Yangambi, Yoko, Masako and Kole in the Kisangani (RDC). We performed a detailed sampling in different vegetation types of a semi -deciduous rainforest (Yoko). Charcoal sampling was conducted in pit intervals of 10 cm. The charcoal was quantified whereby pottery fragments were also registered. A selection of charcoal fragments has been dated through AMS 14C measurement. Floristic identifications were conducted using. former protocols based on wood anatomy, which is largely preserved after charcoalification. Results. Charcoal was found in most pit intervals. The anthracomass in the soil of regrowth forests (secondary forests) is much higher than in the primary forest: 27,59 mg/kg for secondary forests et 2,53 mg/kg for primary forests. The specific soil anthracomass of the primary forest of the Yoko reserve is higher (7,7 mg/kg) than in Yangambi (1,9 mg/kg) , Masako (1,7 mg/kg) and Kole (0,8 mg/kg). No systematic differences have been found between soil charcoal content of the different forest type representing different forest histories. Gilbertiodendron dewevrei (De Wild.) J. Leonard forests showed surprisingly a higher concentration of soil charcoal. Discussion. Forest disturbances in the Kisangani region appear to be more recent than those in the Mayombe forest in Western RDC ( 3000-2000 calBP (Hubau, 2013)) and those of the Cameroon forest (2300-1300 calBP) (Morin-Rivat, J et al., 2014). Stratified charcoal conserved in the soil is a useful indicator of past forest disturbances. [less ▲]

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See detailThe charge conjugation quantum number in multiquark systems
Stancu, Floarea ULg

in AIP Conference Proceedings (2008), 1038

We discuss the charge conjugation quantum number for tetraquarks or meson‐meson molecules, seen as possible interpretations of the newly found XYZ charmonium‐like resonances.

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See detailCharge critique et longueur de flambement des éléments à inertie variable et aux conditions d'extrémité élastiques
Latteur, Pierre ULg

in revue scientifique des Instituts supérieurs industriels francophones de Belgique (2001), 15

Detailed reference viewed: 136 (2 ULg)