The art of texturing glass for Photovoltaics: Processing and optical characterisation

Thin-film silicon technology creates electricity out of micrometer thick silicon absorber layers, which makes this technology less material heavy compared to classic crystalline technology. This advantage can be further exploited with the transition towards flexible thin-film technology, where the non-modular cost can be further reduced compared...

Analyzing the current manure processing and recycling niche in the Netherlands to see how business models can help innovators in the niche succeed

Farming has been essential for thousands of years, but recently climate change and environmental concerns began to arise, putting pressure on the agricultural industry since they are a significant contributor of nitrogen emissions, especially from livestock manure. Fortunately, there are start-ups that try to overcome the nitrogen problem by...

The selection and (economic) evaluation of ammonia recycling processes of manure from farms

Nitrogen emissions contribute significantly to climate change, especially in the Netherlands around Natura-2000 areas, and one of the main contributors is manure. However, not only does manure usually have high nitrogen emissions, a lot of it is in the form of ammonia, which in itself is very energy-intensive to create. Therefore MEZT developed...

Short-time Oxidation of Fe-Mn Alloys

The global production of steel in a year is in the range of several millions of tonnes due to its essential function in industries such as automotive, manufacturing, and construction among others. However, a major challenge faced by the steel industry in the development of new steel grades is the inability to predict surface behaviour, such as...

Processability and Characterisation of Innovative Materials for Cutting Elements

Essential criteria to a shaving blade include wear resistance, corrosion resistance and a sharp cutting edge. The material selection for improved cutting elements as well as increasing the longevity of the blade would provide benefits not only to the consumer experience of a more efficient shaving performance, but also a more sustainable...

Source deghosting of coarsely sampled common-receiver data using a convolutional neural network

It is well known that source deghosting can best be applied to common-receiver gathers, whereas receiver deghosting can best be applied to common-shot records. The source-ghost wavefield observed in the common-shot domain contains the imprint of the subsurface, which complicates source deghosting in the common-shot domain, in particular when the...

A tour of Marchenko redatuming: Focusing the subsurface wavefield

Marchenko redatuming can retrieve the impulse response to a subsurface virtual source from the single-sided surface reflection data with limited knowledge of the medium. We illustrate the concepts and practical aspects of Marchenko redatuming on a simple 1D acoustic lossless medium in which the coupled Marchenko equations are exact. Defined...

Improving Rock Fragmentation at the Ahafo Gold Mine Site: Enhancing Improvements in Production Efficiency and Reducing Operational Costs Through Drill & Blast Pattern Optimization

An efficient production is essential for an economic continuation of most gold mining companies, due to a moderate gold price and a competitive market. Recently, the Ahafo South Mining operations owned by the Newmont Mining Corporation and located on a Proterozoic gold belt in the south west of Ghana, indicated that the cost of production must...