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Natural building

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Recent progress in alkynylation with hypervalent iodine reagents

Jérôme Waser, Eliott Hugo Joran Le Du

Although alkynes are one of the smallest functional groups, they are among the most versatile building blocks for organic chemistry, with applications ranging from biochemistry to material sciences. Alkynylation reactions have traditionally relied on the u ...

ROYAL SOC CHEMISTRY2023

Harvesting the fragment-based nature of bifunctional organocatalysts to enhance their activity

Rubén Laplaza Solanas, Simone Gallarati

Bifunctional hydrogen-bond donors/amines are commonly encountered organocatalysts in asymmetric synthesis. Existing computational tools do not take full advantage of their modularity to suggest tailored designs because they generally rely on evaluating the ...

ROYAL SOC CHEMISTRY2022

augmented-stacking

Katrin Beyer, Yves Weinand, Julien Gamerro, Andrea Settimi, Qianqing Wang, David Rebiffe

Augmented Stacking is an augmented system designed to guide inexperienced users through the stacking of complex and irregular geometries. This digital fabrication system was applied to the assembly of one layer of a half-timber dry-stone wall. Augmented St ...

2022

Activation of aminocyclopropanes via radical intermediates

Jérôme Waser, Mingming Wang

Aminocyclopropanes are versatile building blocks for accessing high value-added nitrogen-containing products. To control ring-opening promoted by ring strain, the Lewis acid activation of donor-acceptor substituted systems is now well established. Over the ...

2022

When designed and operated adequately, natural ventilation (NV) can improve the buildings' energy efficiency and indoor environmental quality. There is a plethora of factors that limit the effectiveness of NV, such as the climate, surrounding buildings, no ...

AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS2022

In recent years, the necessity of using renewable and sustainable resources in the construction sector has become obvious. This has led to a revived interest in the natural advantages of timber as a building material. To this end, the Laboratory for Timber ...

2022

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This research investigates the robotic assembly of timber structures connected by wood–wood connections. As the digitization of the timber construction sector progresses, digital tools, such as industrial robotic arms and Computer Numerical Control machine ...

2022

South Sudan - Building Resources & Shelter Practices

Edisson Xavier Estrella Arcos, André Ullal

Seasonal floods are a common and extended problem across several regions in South Sudan, causing considerable damage to houses, crops, and livelihoods. In this context, new housing and shelter solutions, besides being flood resilient, should take into acco ...

2022

Modelling historical masonry aggregates using the Equivalent Frame approach

Katrin Beyer, Francesco Vanin, Igor Tomic

Many historical centres in Europe, including the city centre of Zagreb, feature masonry building aggregates, which developed as the building layout of the city was densified. Adjacent buildings in aggregates often share a structural wall and the building t ...

2021

Blind predictions of shake table testing of aggregate masonry buildings

Katrin Beyer, Igor Tomic, Andrea Penna

In many historical centers in Europe, stone masonry is part of building aggregates, which developed when the layout of the city or village was densified. The analysis of such building aggregates is very challenging and modelling guidelines missing. Advance ...

2021