Publications

Conventional drinking water treatment includes four stages: coagulation-flocculation, sedimentation, filtration, and disinfection. One of the most essential steps of the treatment train is coagulation-flocculation, because it significantly impacts the flocs' settleability and filterability, which in turn affects the efficiency of subsequent steps. Moreover, it has been observed that this treatment step can potentially remove micropollutants, ...

With the increased interest in silicon photonics, integration and packaging technologies are essential to transforming photonic integrated circuits (PICs) into functional photonic systems. We describe in detail the process to obtain a fully packaged miniature photonic temperature sensor starting from bare PIC dies having Bragg grating sensors in a silicon waveguide. It is also shown that PICs fabricated via multi-project wafer services can show ...

By-products from the potato processing industry, like potato trimmings, are sustainable sources of proteins. Here, a size-exclusion high performance liquid chromatography (SE-HPLC) method was applied to simultaneously determine the extractability and aggregation state of proteins from three batches of potato trimmings of different cultivars. Obtained SE-HPLC profiles allowed distinguishing between the patatin and protease inhibitor fractions of ...

This research aims to evaluate the feasibility of a laboratory-scale batch electrocoagulation system for removing hardness, SO42−, and manganese from groundwater in San Cristobal, a rural community in the Austro region of Ecuador. The efficiency of the electrocoagulation process was compared to the conventional chemical precipitation with lime and alum coagulation. Various variables were analyzed to evaluate the performance of the ...

With the increased interest in silicon photonics, smart integration and packaging technologies are essential to transform photonic integrated circuits (PICs) into functional photonic systems. Especially for sensing, the currently existing standard packaging technologies are too expensive and bulky. We developed a solution for integrating a 1 mm x 1 mm sensor PIC with a single mode fiber and packaging it in a 1.5 mm inner-diameter metal ...

The monogenic Hua-Radon transform is defined as an orthogonal projection on holomorphic functions in the Lie sphere. Extending the work of Sabadini and Sommen (J Geom Anal 29:2709-2737, 2019), we determine its reproducing kernel. Integrating this kernel over the Stiefel manifold yields a linear combination of the zonal spherical monogenics. Using the reproducing properties of those monogenics, we obtain an inversion for the monogenic Hua-Radon ...

We propose a simple optical interface for coupling between a single mode fiber and a grating on a Photonic Integrated Circuit (PIC), by coupling from the back side using a ball lens. This way, the top side of the PIC remains accessible for sensing.

A user-friendly and highly efficient mechanochemical strategy for the synthesis of a number of well-defined, catalytically relevant N-heterocyclic carbene-metal complexes under aerobic conditions is reported. This protocol proceeds in good to excellent yields and limits solvent usage to the purification step, which can be carried out, after judicious selection, using minimal amounts of environmentally benign solvents.