Bat ear bio-mimicry locates sound source to half a degree

A single twanged rubber bat ear, backed by artificial intelligence, is enough to locate the direction from which a sound arrived to within half a degree, according to researchers at Virginia Tech. “I have long admired bats for their uncanny ability to navigate complex natural environments based on ultrasound and suspected that the unusual mobility ...

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32bit DAC for Hi-Fi

Rohm has announced a 32bit mono/stereo Hi-Fi DAC, claiming for it a typical signal to noise ratio of 130dB and -115dB THD+noise. Called BD34301EKV, it can accept PCIM inputs from 32 to 768kHz and DSD at 2.8, 5.6, 11.2 or 22.4MHz. FIR filters are provided for: PCIM sharp roll-off, PCIM slow roll-off and DSD. The two outputs ...

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Haptic touch display activated by LEDs

LEDs could be used to deform and vibrate a haptic touch display, according to researchers at Korea’s Electronics and Telecommunications Research Institute (ETRI). Proving the concept, the team made a 3 x 3 matrix with nine 10 x 10mm vibrating units (touchels perhaps?). Its mechanism involves a plastic bi-morph layer – the two-dimensional polymer equivalent of a ...

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Wireless-to-DALI Gateway specification from DALI Alliance

The DALI Alliance has specified wireless-to-DALI gateways to link existing DALI wired products with Bluetooth mesh or Zigbee wireless ecosystems. “Wireless to DALI gateways provide the flexibility to incorporate DALI luminaires and other DALI devices into the control network, so it becomes straightforward to add lighting capabilities alongside the other features of the wireless ecosystem,” ...

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Compact air quality particulate sensor detects PM10, PM2.5 and PM1

Panasonic is aiming at indoor air quality monitoring with a particulate matter sensor based on laser scattering. “SN-GCJA5 features an innovative optical sensor assembly to provide reliable operation over a long lifetime while accurately detecting particles as small as 0.3µm,” according to Farnell, which is stocking the sensor. It has an “optimised air pathway structure ...

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TSMC on a roll

TSMC’s Q1 profit was up 19.4% at $4.93 billion with revenues up 25.4% at $13.92 billion. TSMC expects 2021 capex of  $30 billion after spending $8.8 billion in Q1. Q2  sales may reach $13.2 billion, while full-year revenue may be up  20%. “We see the demand continue to be high and the shortage will continue throughout this ...

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Groq raises $300m

Groq, which designs accelerators for AI, ML and HPC, has closed its Series C fundraising. Groq raised $300 million in new funding, co-led by Tiger Global Management and D1 Capital, with participation from The Spruce House Partnership, Addition, GCM Grosvenor, Xⁿ, Firebolt Ventures, General Global Capital, and Tru Arrow Partners, as well as follow-on investments from ...

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Q2 server shipments to grow 20% q-o-q

Global server shipment for 2Q21 is expected to increase by 20% QoQ and remain unaffected by material shortage, says TrendForce. The hyperscalers were responsible for more than 40% of total demand for servers in 4Q20, says TrendForce, and this may rise to  45% this year. For 2021, TrendForce expects global server shipment to increase by ...

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Lensless imaging enables cost-effective phage-therapy diagnosis

Leti scientists have demonstrated a lensless imaging  technique that could be implemented in cost-effective and compact devices in phage laboratories to accelerate phage-therapy diagnosis. The growing number of drug-resistant bacterial infections worldwide is driving renewed interest in phage therapy. The WHO has warned of “a slow tsunami” of antibiotic resistance that by 2050 could result ...

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Arianespace opens contest for cubesat launch

Arianespace, is organising a contest where first prize will be a spot on a rideshare mission for a cubesat-sized satellite. The Paris-based launch services company is the running competition in conjunction with the VivaTech international innovation show. It writes: Participating teams will try to convince the members of the Arianespace jury by presenting the potential ...

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