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SPE VAI DEBATER DURANTE TRÊS DIAS AS NOVAS OPORTUNIDADES NO SETOR DE PRODUÇÃO DE PETRÓLEO

SPE VAI DEBATER DURANTE TRÊS DIAS AS NOVAS OPORTUNIDADES NO SETOR DE PRODUÇÃO DE PETRÓLEO
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Nanotechnology Now - Press Release: Compression or strain - the material expands always the same

Regardless if strained or compressed, the new material always expands. CREDIT Thomas Heine et al. Abstract: If you stretch an elastic band, it becomes thinner - a physical behavior that applies to most common materials. Since the 20th century, an opposite behavior has been known in materials research: The so-called auxetic (from ancient Greek auxetos, meaning stretchable ) materials expand in the direction orthogonal to the strain. Likewise, they shrink when they are compressed. Scientifically, they are characterized by a negative Poisson s ratio. Probably the best known and oldest application of unusual Poisson s ratios is the bottle cork, which has a Poisson s ratio of zero. This has the effect that the cork can be put into the thinner neck of the bottle.

Nanotechnology Now - Press Release: CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs): OPAs with Solid-State Beam Steering Can Reduce the Cost and Size of LiDAR Systems & Improve Performance; Results Reported at Photonics West 2021

Our NanoNews Digest Sponsors Home > Press > CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs): OPAs with Solid-State Beam Steering Can Reduce the Cost and Size of LiDAR Systems & Improve Performance; Results Reported at Photonics West 2021 Abstract: Taking a critical step toward developing LiDAR systems for widespread commercial applications, CEA-Leti has developed genetic algorithms to calibrate high-channel-count optical phased arrays (OPAs), as well as an advanced measurement setup enabling wafer-scale OPA characterization. CEA-Leti Envisions Widespread Use of LiDAR Systems Based on Integrated Optical Phased Arrays (OPAs): OPAs with Solid-State Beam Steering Can Reduce the Cost and Size of LiDAR Systems & Improve Performance; Results Reported at Photonics West 2021

Dubai inmates learn basics of volunteer work

Dubai inmates learn basics of volunteer work Team KT/Dubai Supplied photo Through programme, the police seek to give inmates a chance to start afresh and channel their energy into productivity. Twenty-seven inmates in Dubai have learnt the basics of volunteer work and community service in two virtual workshops recently organised by the emirate’s General Department of Punitive and Correctional Institutions. The programme was part of the Dubai Police’s Fina Khaer (The Goodness Within) initiatives, and the force’s goal of encouraging more inmates to serve the community as volunteers. Various activities and sessions were lined up for the group as part of the educational programme.

Nanotechnology Now - Press Release: Instrument at BESSY II shows how light activates MoS2 layers to become catalysts

Nanotechnology Now Home > Press > Instrument at BESSY II shows how light activates MoS2 layers to become catalysts A new instrument at BESSY II can be used to study molybdenum-sulfide thin films that are of interest as catalysts for solar hydrogen production. A light pulse triggers a phase transition from the semiconducting to the metallic phase and thus enhances the catalytic activity. CREDIT Martin Künsting /HZB Abstract: MoS2 thin films of superposed alternating layers of molybdenum and sulfur atoms form a two-dimensional semiconducting surface. However, even a surprisingly low-intensity blue light pulse is enough to alter the properties of the surface and make it metallic. This has now been demonstrated by a team at BESSY II.

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