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Shrinking Medical Devices Get Smarter Too

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Engineering 2021年第1期7卷 8-10页

作者： Chris palmer Senior Technology Writer

Medical devices designed to be implanted in the body have gotten impressively *** a great extent,this miniaturization has also decreased the invasiveness of the devices,simplifying implantation and reducing patient ***,the devices are also getting *** to both transmit and measure clinically relevant physiological signals,two new state-of-the-art devices—a pacemaker and a deep brain stimulator(DBS)—can use sophisticated algorithms to autonomously modulate the electrical stimulation they *** addition to improving patient outcomes,these smart features are also expanding the potential clinical utility of the devices.

关键词： Engine smart implantation

Simplified Instruction Set Architecture Accelerates Chip Development and Wins the 2022 Draper Prize

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Engineering 2022年第10期17卷 7-9页

作者： Chris palmer Senior Technology Writer

The previously slow and steady rise in the adoption of a streamlined computer chip instruction set architecture(ISA),the fifth generation of reduced instruction set computer(RISC-V),has officially entered *** early Fe... 详细信息

关键词： computer Win ISA

The Boeing 737 Max Saga: Automating Failure

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Engineering 2020年第1期6卷 2-3页

作者： Chris palmer 不详

When Boeing announced the 737 Max in 2011, the plane was hailed as the next generation of the manufacturer’s dependable workhorse airliner. The Max, which first entered service in 2017 with new, more fuel-efficient e... 详细信息

关键词： Max horse service

Advanced Devices Ease Burden of Glucose Monitoring for Diabetics

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Engineering 2021年第5期7卷 547-549页

作者： Chris palmer 机构不详

For most of the world's many diabetics,monitoring blood sugar remains a time-consuming,inaccurate,and painful multiple-times-a-day,chemistry-laboratory-in-the-kitchen ***,hope for easing this burden is being delivered by medical device manufacturers with striking advances in monitoring *** latest generation of glucose monitors are highly accurate,easy to use,and relatively *** directly to the skin for weeks at a time,these small sensors make tracking glucose levels as simple as glancing at a *** also take medical technology one step closer to the holy grail of fully automated,"closed-loop"delivery systems for insulin,which could go a long way to effectively freeing diabetics from the shackles-and perhaps worst health effects and risks-of their disease.

关键词： closer striking sugar

Neuromorphic Computing Advances Deep-Learning Applications

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Engineering 2020年第8期6卷 854-856页

作者： Chris palmer Senior Technology Writer

In the quest for ever faster and more efficient computing,researchers and manufacturers are busy exploring novel processing *** these,neuromorphic computing—the emulation of brain function inside computer chips—is showing particular promise for applications involving deep learning,an increasingly common form of artificial intelligence(AI)that uses neural networks inspired by brains to uncover patterns in large datasets.

关键词： Deep computer artificial

The Drive for Electric Motor Innovation

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Engineering 2022年第4期8卷 9-11页

作者： Chris palmer 机构不祥

Since 2018,Turntide Technologies’highly efficient electric motors—based on an updated version of an early 19th century design—have turned cooling fans in dairy barns across the United States;in addition,more than a dozen companies,including BMW and Amazon,have saved an estimated average of 64%on heating and cooling costs by retrofitting their rooftop heating,ventilation,and air conditioning(HVAC)systems with the company’s“smart motor system”[1].Now,as announced in June and July 2021[1,2],the Sunnyvale,CA,USA-based company,backed by Bill Gates and Amazon,is shifting its focus to electric vehicles(EVs)after securing 225 million USD in funding and acquiring three startup firms—Hyperdrive Innovation,BorgWarner Gateshead,and Avid Technology—that make batteries,drivetrains,and EV controls,respectively.

关键词： Amazon companies shifting

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Google Takes a Big Step Toward Quantum Computing

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Engineering 2020年第4期6卷 381-383页

作者： Chris palmer Senior Technology Writer

Google scientists set the computing world abuzz in October 2019 by announcing its quantum computer had solved a problem in just 200 sec that a classical computer would take years-10000 by Google’s estimation-to solve[1].The achievement,since disputed by scientists at the International Business Machines Corporation(IBM)and downplayed by many experts in the field as too esoteric,signaled proof to Google investigators that quantum computers can achieve“quantum supremacy”and overwhelmingly outperform even the world’s most powerful classical computers on certain *** the future,more robust,powerful versions of quantum computers like Google’s,which exploit the properties of matter at subatomic scales to significantly improve processing power,could revolutionize computing,encrypting data,and investigating some of the most mysterious aspects of nature.

关键词： Google computer Quantum

Astronauts Hitch First Ride Aboard Private Rocket to Space Station

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Engineering 2020年第11期6卷 1207-1209页

作者： Chris palmer 不详

On 30 May 2020,two National Aeronautics and Space Administration(NASA)astronauts,Robert Behnken and Douglas Hurley,made history as the first two people to travel to the International Space Station(ISS)aboard a private spacecraft(Fig.1).Nine weeks later,on 2 August 2020,the SpaceX(Hawthorne,CA,USA)built and operated Crew Dragon returned Behnken and Hurley back to Earth,safely completing the mission.

关键词： Rocket astronauts travel

Two-Dimensional Variational Analysis of Near-Surface Moisture from Simulated Radar Refractivity-Related Phase Change Observations

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Advances in Atmospheric Sciences 2013年第2期30卷 291-305页

作者： Ken-ichi SHIMOSE Ming XUE Robert D.palmer Jidong GAO Boon Leng CHEONG david J.BODINE Center for Analysis and Prediction of Storms University of OklahomaNorman OKUSA Department of Earth and Planetary Sciences Kyushu UniversityFukuokaJapan School of Meteorology University of OklahomaNorman OKUSA Atmospheric Radar Research Center University of OklahomaNorman OKUSA National Severe Storms Laboratory NOAANorman OKUSA

Because they are most sensitive to atmospheric moisture content, radar refractivity observations can provide high-resolution information about the highly variable low-level moisture field. In this study, simulated radar refractivity-related phase-change data were created using a radar simulator from realistic highresolution model simulation data for a dryline case. These data were analyzed using the 2DVAR system developed specifically for the phase-change data. Two sets of experiments with the simulated observations were performed, one assuming a uniform target spacing of 250 m and one assuming nonuniform spacing between 250 m to 4 km. Several sources of observation error were considered, and their impacts were examined. They included errors due to ground target position uncertainty, typical random errors associated with radar measurements, and gross error due to phase wrapping. Without any additional information, the 2DVAR system was incapable of dealing with phase-wrapped data directly. When there was no phase wrapping in the data, the 2DVAR produced ex- cellent analyses, even in the presence of both position uncertainty and random radar measurement errors. When a separate pre-processing step was applied to unwrap the phase-wrapped data, quality moisture anal- yses were again obtained, although the analyses were smoother due to the reduced effective resolution of the observations by interpolation and smoothing involved in the unwrapping procedure. The unwrapping procedure was effective even when significant differences existed between the analyzed state and the state at a reference time. The results affirm the promise of using radar refractivity phase-change measurements for near-surface moisture analysis.

关键词： radar refractivity variational analysis low-level moisture