Micro heat exchangers have been revealed to be efficient devices for improved transfer due short distances and increased surface-to-volume ratios. Further augmentation of the behaviour within microstructured can achieved with enhancement techniques, more precisely this study, passive techniques. Pin fin geometries influence flow path and, therefore, were chosen as option further improvement per...

Passive daytime radiative cooling has recently become an attractive approach to address the global energy demand associated with modern refrigeration technologies. One technique increase performance is engineer surface of a polar dielectric material enhance its emittance at wavelengths in atmospheric infrared transparency window (8–13 µm) by outcoupling surface-phonon polaritons (SPhPs) into fr...

The Silicon Tracking System (STS) serves the CBM experiment as a track reconstruction and momentum measurement detector. It is designed to provide high tracking efficiency and good momentum resolution for the charged particles produced in nuclear interactions in the target. As the multiplicities in central Au + Au collisions at FAIR energies reach 1000 charged particles a high granularity and l...

You are probably deploying different types of small cells from multiple vendors, including residential small cells, indoor small cells for buildings, and public small cells in indoor hotspots. Most 3G small cells today are passive in operation they do some auto-configuration on start-up but can’t react to changes in traffic or in their radio environment. Others, such as Cisco Universal Small Ce...

Planar micro-optic concentrators are passive optical structures which combine a lens array with faceted microstructures to couple sunlight into a planar slab waveguide. Guided rays propagate within the slab to edge-mounted photovoltaic cells. This paper provides analysis and preliminary experiments describing modifications and additions to the geometry which increase concentration ratios along ...

Continuous monitoring of in vivo biological processes and their evolution at the cellular level would enable major advances in our understanding of biology and disease. As a stepping stone towards chronic cellular monitoring, we demonstrate massively parallel fabrication and delivery of 3D multilayer micro-Tags (μTags) into living cells. Both 10 μm × 10 μm × 1.5 μm and 18 μm × 7 μm × 1.5 μm dev...

Diffraction with asymmetric enhancement and suppression, and alternating contrast for symmetric diffraction orders is demonstrated from planar two-component optical gratings made of passive/lossy materials. Simulations agree well with the experimental diffraction pattern of the fabricated sample. Our fabrication approach uses simple, standard planar micro/nano lithography employing one photores...

This paper presents a power supply module targeted for low-power applications in the sub-mW range incorporating a passive μDMFC fuel cell (μFC) acting as energy source and a customized boost converter for the energy conversion. The low power budget of such energy sources mandates the adoption of efficient circuit solutions, hence the design of the boost converter is challenging. To maximize the...

This paper describes a new functional electromagnetic cell material (EMCM) for EMC use. This novel material is composed of passive or active micro-electronic circuit elements and they are connected with loss or conductive wirings. If it is composed of active circuit elements, this material is able to exhibit a special feature of changeable characteristics of EM-wave absorber. As an example of E...

Self-localization is one of the most challenging problems for deploying micro autonomous underwater vehicles ( μ AUV) in confined underwater environments. This paper extends a recently-developed self-localization method that is based on the attenuation of electro-magnetic waves, to the μ AUV domain. We demonstrate a compact, low-cost architecture that is able to perform all signal processing st...