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Low-Energy Device Rapidly Reroutes Light in Computer Chips

  • Magazine Article
  • TBMG-35962
Published 2020-02-01 by Tech Briefs Media Group in United States

Researchers have developed an optical switch that routes light from one computer chip to another in just 20 billionths of a second — faster than any other similar device. The compact switch is the first to operate at voltages low enough to be integrated onto low-cost silicon chips and redirects light with very low signal loss.

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Volvo CE showcases 100-ton EC950F excavator, new hybrid assist that cuts fuel use by 15%

SAE Truck & Off-Highway Engineering: February 2020

Ryan Gehm
  • Magazine Article
  • 20TOFHP02_13
Published 2020-02-01 by SAE International in United States

The entrance to Volvo Construction Equipment's ConExpo-Con/Agg exhibit (F3432), through what the company has dubbed “excavator alley,” will lead to the manufacturer's largest excavator offered in North America: the 100-ton (90-tonne) EC950F crawler excavator. The reason Volvo CE is emphasizing its excavator lineup is simple, according to Ray Gallant, VP of sales support: more than half of the units sold in construction equipment are excavators.

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Bomb Detection Method Detects Peroxide-Based Explosives

  • Magazine Article
  • TBMG-35966
Published 2020-02-01 by Tech Briefs Media Group in United States

Researchers have developed a detection method that improves upon current thermal-based methods used in today's airports, while reducing false positives. The technique is able to detect key explosives in just 30 seconds.

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Isuzu dual-fuel system simplifies fuel changeovers

SAE Truck & Off-Highway Engineering: February 2020

Terry Costlow
  • Magazine Article
  • 20TOFHP02_09
Published 2020-02-01 by SAE International in United States

Isuzu is making it easier for equipment owners to switch fuels from natural gas to liquid propane, letting users switch by merely sending a signal to the engine. Released in October 2019, the dual-fuel 4HV1 engines and power units also have a higher compression ratio that helps conserve fuel.

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Portable Sample Preparation for Chemical and Biological Analysis

  • Magazine Article
  • TBMG-35964
Published 2020-02-01 by Tech Briefs Media Group in United States

Preparing samples for chemical or biological analysis is often time-consuming and a critical step function to assure an accurate analysis. This invention provides an automated, hands-free, highly accurate device to prepare industrial, chemical, or biological samples for instrumental analysis methods.

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Facility Focus: NASA Goddard Space Flight Center

  • Magazine Article
  • TBMG-35969
Published 2020-02-01 by Tech Briefs Media Group in United States

Dr. Robert Hutchings Goddard is considered the father of modern rocket propulsion. A physicist, Goddard also had a unique genius for invention. It is in his honor that NASA's Goddard Space Flight Center in Greenbelt, MD, was established on May 1, 1959 as NASA's first space flight complex.

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Low-latency cameras, onboard computing combine to offer advanced operator assistance

SAE Truck & Off-Highway Engineering: February 2020

Ken Lindfors
  • Magazine Article
  • 20TOFHP02_07
Published 2020-02-01 by SAE International in United States

Modern industrial machines have been using cameras for years to improve visibility and eliminate blind spots. With the introduction of Ethernet cameras, an accepted standard for networked computing, more complex and cost-effective camera configurations can be implemented into on- and off-highway vehicles.

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Breathalyzer Detects Marijuana

  • Magazine Article
  • TBMG-35971
Published 2020-02-01 by Tech Briefs Media Group in United States

As recreational marijuana legalization becomes more widespread in the U.S., so has concern about what that means for enforcing driving-under-the-influence (DUI) laws. Unlike a breathalyzer used to detect alcohol, police do not have a device that can be used in the field to determine if a driver is under the influence of marijuana.

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Engineering the world's fastest tractor

SAE Truck & Off-Highway Engineering: February 2020

Stuart Birch
  • Magazine Article
  • 20TOFHP02_05
Published 2020-02-01 by SAE International in United States

JCB worked with design and engineering specialists to build a spectacular speed record-breaker that topped 150 mph.

For farmers in a hurry, JCB's Fastrac series agricultural tractors are capable of speeds up to 43 mph (69 km/h) in stock form. But the British company believes in challenging its engineers to improve the breed, and in doing so they've taken the concept of a high-speed ag tractor to new heights.

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ICE ADVANCES

SAE Truck & Off-Highway Engineering: February 2020

Terry Costlow
  • Magazine Article
  • 20TOFHP02_01
Published 2020-02-01 by SAE International in United States

Engine developers employ revised electronic architectures, mechanical tweaks to boost fuel efficiency and performance of internal-combustion engines.

Engineers are leaving no stone unturned in their unceasing drive to improve fuel economy, leveraging electronics, monitoring airflow and using data from outside the vehicle. Computer architectures are being revised to simplify controls and reduce sensor counts, helping keep costs in line.

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