This review article revisits the role of static mixers in process industry nowadays and summarizes most relevant developments literature available on this type handling liquid-phase systems. In particular, seeks to discuss depth progress that has been made hydrodynamic understanding immiscible liquid–liquid dispersions emulsion formation using motionless types mixers, both through experimental ...

The balanced mixer is fabricated on a 2 x 1 mm quartz substrate which contains an RF quadrature hybrid and two SIS mixers. These components are realized in capacitively-loaded coplanar waveguide, which minimizes stray coupling between adjacent components and coupling to undesired modes in the thick quartz substrate. Signal and LO waveguides are coupled to separate ports of the main substrate vi...

A novel approach toward the needs of a versatile chip-based microfluidic system with unique properties and functionality is reviewed. Like for microarrays and in contrast to many existing technologies, the fluid handling is performed on the flat surface of a programmable chip, where fluidic tracks and functional blocks such as valves, dispensers, mixers, and sensing elements are chemically defi...

Efficient models based on behavioural modelling techniques are needed for RF and microwave mixers in order to check the performances of communication systems. Here, we propose a model consisting on the cascade connection of an input equivalent filter, characterising the linear transmission and reflection memory effects, and an ideal nonlinear mixer model, providing the frequency translation and...

We have designed and constructed a Fourier Transform Spectrometer (FTS) for the study of submillimeter-wave mixers and optical components. The FTS has a large aperture (up to 25.4 cm) and small focal ratio (as fast as f/2.5) to achieve a large throughput. It operates in the 100-3750 GHz (3.3125 cm 1) frequency range with a resolution of up to 75 MHz (0.0025 cm ). Here we discuss the design goal...

Dry dispersible substances are used as raw materials in almost all branches of production, mainly chemical, pharmaceutical, food, construction and other industries. Therefore, there is always a need for facilities that process this product. One the most important these devices mixer. First all, it an task to create efficient energy-efficient mixers suitable product type production process. Mixe...

The aim of microfluidic mixing is to achieve a thorough and rapid mixing of multiple samples in microscale devices. In such devices, sample mixing is essentially achieved by enhancing the diffusion effect between the different species flows. Broadly speaking, microfluidic mixing schemes can be categorized as either "active", where an external energy force is applied to perturb the sample specie...

In this paper we present the development of low-noise waveguide mixers with NbN/AlN/NbN tunnel junctions at frequency approaching 1THz. The mixer was designed to be compatible with MgO substrate. Mixers of such a design demonstrated much improved receiver sensitivity. The improvement is a result of reduction of signal dissipation in waveguide and leakage into IF port by adopting a full-height w...