Association of Dual Decline in Cognition and Gait Speed With Risk of Dementia in Older Adults
Sign Up to like & getrecommendations! Published in 2022 at "JAMA Network Open"
DOI: 10.1001/jamanetworkopen.2022.14647
Abstract: Key Points Question Which cognitive measure among global cognition, memory, processing speed, and verbal fluency is most useful in assessing risk of future dementia when combined with gait decline? Findings In this cohort study of… read more here.
Keywords: speed; risk; risk dementia; dementia ... See more keywords
Unusual features of negative leaders' development in natural lightning, according to simultaneous records of current, electric field, luminosity, and high-speed video
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2016jd025891
Abstract: The development of downward and upward leaders that formed two negative cloud-to-ground return strokes in natural lightning, spaced only about 200 µs apart and terminating on ground only a few hundred meters away, was monitored at… read more here.
Keywords: electric field; simultaneous records; records current; speed ... See more keywords
Ultrahigh Speed and Broadband Few‐Layer MoTe2/Si 2D–3D Heterojunction‐Based Photodiodes Fabricated by Pulsed Laser Deposition
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201907951
Abstract: 2D transition metal dichalcogenides are promising candidates for high‐performance photodetectors. However, the relatively low response speed as well as the complex transfer process hinders their wide applications. Herein, for the first time, the fabrication of… read more here.
Keywords: layer mote2; pulsed laser; speed; heterojunction ... See more keywords
A Semi‐Floating Memory with 535% Enhancement of Refresh Time by Local Field Modulation
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201908089
Abstract: The recently proposed semi‐floating gate memory technology shows the potential to balance conflicts between writing speed and data storage. Although the introduction of the p–n junction greatly improves device writing speed, the inevitable junction leakage… read more here.
Keywords: time; time local; speed; refresh time ... See more keywords
In Situ Formed Gradient Bandgap-Tunable Perovskite for Ultrahigh-Speed Color/Spectrum-Sensitive Photodetectors via Electron-Donor Control.
Sign Up to like & getrecommendations! Published in 2020 at "Advanced materials"
DOI: 10.1002/adma.201908108
Abstract: Integration of various photodetectors with different light-sensitive materials and detection capacity is an inevitable way to achieve entire color/spectrum detection. However, the uneven capacity of each photodetector would drag the overall performance behind, especially the… read more here.
Keywords: color; spectrum sensitive; spectrum; speed ... See more keywords
Video Speed Switching of Plasmonic Structural Colors with High Contrast and Superior Lifetime.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202103217
Abstract: Reflective displays or "electronic paper" technologies provide a solution to the high energy consumption of emissive displays by simply utilizing ambient light. However, it has proven challenging to develop electronic paper with competitive image quality… read more here.
Keywords: structural colors; video speed; speed; speed switching ... See more keywords
Toward the Speed Limit of Phase‐Change Memory
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202208065
Abstract: Phase‐change memory (PCM) is one of the most promising candidates for next‐generation data‐storage technology, the programming speed of which has enhanced within a timescale from milliseconds to sub‐nanosecond (≈500 ps) through decades of effort. As… read more here.
Keywords: speed; change memory; phase change;
3D Printing Customized Optical Lens in Minutes
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Optical Materials"
DOI: 10.1002/adom.201901646
Abstract: Synergizing grayscale photopolymerization and meniscus coating processes, rapid 3D printing of optical lenses is reported previously using projection microstereolithography (PµSL) process. Despite its 14 000‐fold‐improved printing speed over the femtosecond 3D printing process, PµSL still… read more here.
Keywords: customized optical; speed; optical lens; printing customized ... See more keywords
A New Full‐Order Sliding Mode Observer Based Rotor Speed and Stator Resistance Estimation for Sensorless Vector Controlled Pmsm Drives
Sign Up to like & getrecommendations! Published in 2019 at "Asian Journal of Control"
DOI: 10.1002/asjc.1812
Abstract: Sensorless control of a permanent magnetsynchronous motor (PMSM) at low speed remains a challenging task. In this paper, a sensorless vector control of PMSM using a new structure of a sliding mode observer (SMO) is… read more here.
Keywords: stator resistance; control; speed; sensorless ... See more keywords
Speed observer of induction machine based on backstepping and sliding mode for low‐speed operation
Sign Up to like & getrecommendations! Published in 2020 at "Asian Journal of Control"
DOI: 10.1002/asjc.2244
Abstract: This paper presents a speed observer design based on backstepping and sliding mode approaches. The inputs to the observer are the stator current and the voltage vector components. This observer structure is extended to the… read more here.
Keywords: based backstepping; speed; sliding mode; speed observer ... See more keywords
A study on nonlinear model predictive control for helicopter/turboshaft engine with variable rotor speed based on piecewise objective function
Sign Up to like & getrecommendations! Published in 2020 at "Asian Journal of Control"
DOI: 10.1002/asjc.2448
Abstract: In order to obtain the high‐quality fast response control for helicopter/turboshaft engine with variable rotor speed, a nonlinear model predictive control (NMPC) method based on piecewise objective function is proposed. The piecewise objective function takes… read more here.
Keywords: objective function; speed; variable rotor; rotor speed ... See more keywords