Publicaties
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Unaltered soil microbial community composition, but decreased metabolic activity in a semiarid grassland after two years of passive experimental warming Universiteit Antwerpen
Soil microbial communities regulate soil carbon feedbacks to climate warming through microbial respiration (i.e., metabolic rate). A thorough understanding of the responses of composition, biomass, and metabolic rate of soil microbial community to warming is crucial to predict soil carbon stocks in a future warmer climate. Therefore, we conducted a field manipulative experiment in a semiarid grassland on the Loess Plateau of China to evaluate ...
Long-term experimental warming alters community composition of ascomycetes in Alaskan moist and dry arctic tundra KU Leuven
Arctic tundra regions have been responding to global warming with visible changes in plant community composition, including expansion of shrubs and declines in lichens and bryophytes. Even though it is well known that the majority of arctic plants are associated with their symbiotic fungi, how fungal community composition will be different with climate warming remains largely unknown. In this study, we addressed the effects of long-term (18 ...
Long-term warming alters richness and composition of taxonomic and functional groups of arctic fungi KU Leuven
Fungi, including symbionts, pathogens and decomposers, play crucial roles in community dynamics and nutrient cycling in terrestrial ecosystems. Despite their ecological importance, the response of most arctic fungi to climate warming is unknown, so are their potential roles in driving the observed and predicted changes in tundra communities. We carried out deep DNA sequencing of soil samples to study the long-term effects of experimental warming ...
Decoupling multivariate polynomials: interconnections between tensorizations Vrije Universiteit Brussel KU Leuven
Decoupling multivariate polynomials is useful for obtaining an insight into the workings of a nonlinear mapping, performing parameter reduction, or approximating nonlinear functions. Several different tensor-based approaches have been proposed independently for this task, involving different tensor representations of the functions, and ultimately leading to a canonical polyadic decomposition. We first show that the involved tensors are related ...
Decoupling multivariate polynomials using first-order information and tensor decompositions Vrije Universiteit Brussel KU Leuven
We present a method to decompose a set of multivariate real polynomials into linear combinations of univariate polynomials in linear forms of the input variables. The method proceeds by collecting the first-order information of the polynomials in a set of operating points, which is captured by the Jacobian matrix evaluated at the operating points. The polyadic canonical decomposition of the three-way tensor of Jacobian matrices directly returns ...
Modulation of TE Propagation Modes in Rectangular Metal Waveguide with Integrated Graphene Structure in the Sub-Terahertz Frequency Range Vrije Universiteit Brussel
Propagation of TE modes in a rectangular metal waveguide with an integrated structure of finite length containing a graphene monolayer was studied by modal decomposition method. The modal decomposition method generates a number of linear algebraic equations related to waveguide modes taken into account. The system of linear algebraic equations for the amplitudes of all modes was derived taking into account propagating as well as a number of ...
Multi-Modal Dictionary Learning for Image Separation With Application In Art Investigation Vrije Universiteit Brussel
In support of art investigation, we propose a new
source separation method that unmixes a single X-ray scan
acquired from double-sided paintings. In this problem, the X-ray
signals to be separated have similar morphological characteristics,
which brings previous source separation methods to their
limits. Our solution is to use photographs taken from the frontand
back-side of the panel to drive the ...
source separation method that unmixes a single X-ray scan
acquired from double-sided paintings. In this problem, the X-ray
signals to be separated have similar morphological characteristics,
which brings previous source separation methods to their
limits. Our solution is to use photographs taken from the frontand
back-side of the panel to drive the ...
Effect of polyethylene glycol on pore structure and separation efficiency of silica-based monolithic capillary columns Vrije Universiteit Brussel
Monolithic silica materials (first unclad monolith rods, then monolithic capillary columns) were prepared using various amounts of polyethylene glycols (PEGs) with different molecular weight (MW). The monolith rods were used to examine the mesoporosity by argon physisorption technique, and the macro porosity by mercury intrusion porosimetry. Subsequently, silica-based monolithic capillary columns with an inner diameter of 100 p.m were produced ...