When it comes to hard to solve problems, the significance of situational knowledge construction and network coordination must not be underrated. Professional deliberation is directed toward understanding, acting and analysis. We need smart and flexible ways to direct systems information from practice to network reflection, and to guide results from network consultation to practice. This article presents a case study proposal, as follow-up to a recent dissertation about online simulation gaming for youth care network exchange (Van Haaster, 2014).
Introducing a hyperbolic vortex into a showerhead is a possibility to achieve higher spray velocities for a given discharge without reducing the nozzle diameter. Due to the introduction of air bubbles into the water by the vortex, the spray is pushed from a transition (dripping faucet) regime into a jetting regime, which results in higher droplet and jet velocities using the same nozzle diameter and throughput. The same droplet and jet diameters were realized compared to a showerhead without a vortex. Assuming that the satisfaction of a shower experience is largely dependent on the droplet size and velocity, the implementation of a vortex in the showerhead could provide the same shower experience with 14% less water consumption compared to the normal showerhead. A full optical and physical analysis was presented, and the important chemical parameters were investigated.
MULTIFILE
20-11-2019
Application of animal manure to soils results in the introduction of manure-derived bacteria and their antimicrobial resistance genes (ARGs) into soils. ResCap is a novel targeted-metagenomic approach that allows the detection of minority components of the resistome gene pool without the cost-prohibitive coverage depths and can provide a valuable tool to study the spread of antimicrobial resistance (AMR) in the environment. We used high-throughput sequencing and qPCR for 16S rRNA gene fragments as well as ResCap to explore the dynamics of bacteria, and ARGs introduced to soils and adjacent water ditches, both at community and individual scale, over a period of three weeks. The soil bacteriome and resistome showed strong resilience to the input of manure, as manuring did not impact the overall structure of the bacteriome, and its effects on the resistome were transient. Initially, manure application resulted in a substantial increase of ARGs in soils and adjacent waters, while not affecting the overall bacterial community composition. Still, specific families increased after manure application, either through the input of manure (e.g., Dysgonomonadaceae) or through enrichment after manuring (e.g., Pseudomonadaceae). Depending on the type of ARG, manure application resulted mostly in an increase (e.g., aph(6)-Id), but occasionally also in a decrease (e.g., dfrB3) of the absolute abundance of ARG clusters (FPKM/kg or L). This study shows that the structures of the bacteriome and resistome are shaped by different factors, where the bacterial community composition could not explain the changes in ARG diversity or abundances. Also, it highlights the potential of applying targeted metagenomic techniques, such as ResCap, to study the fate of AMR in the environment.
MULTIFILE
19-05-2021
Many lithographically created optical components, such as photonic crystals, require the creation of periodically repeated structures [1]. The optical properties depend critically on the consistency of the shape and periodicity of the repeated structure. At the same time, the structure and its period may be similar to, or substantially below that of the optical diffraction limit, making inspection with optical microscopy difficult. Inspection tools must be able to scan an entire wafer (300 mm diameter), and identify wafers that fail to meet specifications rapidly. However, high resolution, and high throughput are often difficult to achieve simultaneously, and a compromise must be made. TeraNova is developing an optical inspection tool that can rapidly image features on wafers. Their product relies on (a) knowledge of what the features should be, and (b) a detailed and accurate model of light diffraction from the wafer surface. This combination allows deviations from features to be identified by modifying the model of the surface features until the calculated diffraction pattern matches the observed pattern. This form of microscopy—known as Fourier microscopy—has the potential to be very rapid and highly accurate. However, the solver, which calculates the wafer features from the diffraction pattern, must be very rapid and precise. To achieve this, a hardware solver will be implemented. The hardware solver must be combined with mechatronic tracking of the absolute wafer position, requiring the automatic identification of fiduciary markers. Finally, the problem of computer obsolescence in instrumentation (resulting in security weaknesses) will also be addressed by combining the digital hardware and software into a system-on-a-chip (SoC) to provide a powerful, yet secure operating environment for the microscope software.
DISCO aims at fast-tracking upscaling to new generation of urban logistics and smart planning unblocking the transition to decarbonised and digital cities, delivering innovative frameworks and tools, Physical Internet (PI) inspired. To this scope, DISCO will deploy and demonstrate innovative and inclusive urban logistics and planning solutions for dynamic space re-allocation integrating urban freight at local level, within efficiently operated network-of-networks (PI) where the nodes and infrastructure are fixed and mobile based on throughput demands. Solutions are co-designed with the urban logistics community – e.g., cities, logistics service providers, retailers, real estate/public and private infrastructure owners, fleet owners, transport operators, research community, civil society - all together moving a paradigm change from sprawl to data driven, zero-emission and nearby-delivery-based models.
Aanleiding Nieuwe stoffen en producten van de farmaceutische sector en de (agro)chemie moeten uitgebreid getest worden voordat ze op de markt kunnen verschijnen. Voor die testen is nu nog een groot aantal proefdieren nodig. Dit stuit echter op een aantal bezwaren: de uitkomsten van deze studies zijn niet altijd goed vertaalbaar naar effecten bij de mens, proefdierstudies zijn duur en de ethische kant van dierproeven staat steeds vaker ter discussie. Bedrijven zijn naarstig op zoek naar alternatieve testsystemen die ervoor kunnen zorgen dat proefdierstudies met zoogdieren worden verminderd, verfijnd en vervangen (de drie V's). Doelstelling In twee eerdere RAAK-projecten is ontdekt dat nematode C. elegans een kansrijk alternatief voor dierproeven is. Het is nu aan het multidisciplinaire team van Elegant! om de potentie van deze rondworm uit te bouwen en te ontwikkelen in een gevalideerd onderzoeksmodel voor de chemische, agrochemische en farmaceutische sector. Zij gaan C. elegans inzetten als alternatief testmodel om complexe responsen te meten. De vragen die zij willen beantwoorden met het onderzoek zijn: " Hoe effectief is het gebruik van C. elegans als alternatief testsysteem in het voorspellen van mogelijke toxische effecten en farmaceutische activiteiten? " In hoeverre kan C. elegans een meerwaarde hebben met betrekking tot het bestuderen en begrijpen van het onderliggende werkingsmechanisme? Beoogde resultaten Het resultaat van het project is kennis over de effectiviteit van C. elegans als alternatief systeem voor het screenen van stoffen op veiligheid en activiteit. Tijdens het onderzoek wordt er ook nieuwe technologie ontwikkeld, waaronder: " een productieproces voor de continue aanlevering van wormen; " lab-on-chipmodule voor high-throughput microscopie; " zelfregulerende mappingtool voor verzameling en interpretatie van data.
