Results 11 to 20 of about 4,970,035 (308)

High-Speed Electrochemical Imaging [PDF]

ACS Nano, 2015
The design, development, and application of high-speed scanning electrochemical probe microscopy is reported. The approach allows the acquisition of a series of high-resolution images (typically 1000 pixels μm(-2)) at rates approaching 4 seconds per frame, while collecting up to 8000 image pixels per second, about 1000 times faster than typical imaging
Dmitry Momotenko, Joshua C. Byers, Kim McKelvey, Minkyung Kang, Patrick R. Unwin   +4 more
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High-speed high-security signatures [PDF]

Journal of Cryptographic Engineering, 2011
This paper shows that a $390 mass-market quad-core 2.4GHz Intel Westmere (Xeon E5620) CPU can create 108000 signatures per second and verify 71000 signatures per second on an elliptic curve at a 2128 security level. Public keys are 32 bytes, and signatures are 64 bytes.
Bernstein, D.J., Duif, N., Lange, T., Schwabe, P., Yang, B.Y.   +4 more
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Ultrafast flow of interacting organic polaritons [PDF]

, 2016
The strong-coupling of an excitonic transition with an electromagnetic mode results in composite quasi-particles called exciton-polaritons, which have been shown to combine the best properties of their bare components in semiconductor microcavities ...
Ballarini, Dario, Cannavale, Alessandro, De Giorgi, Milena, Dominici, Lorenzo, Fieramosca, Antonio, Gambino, Salvatore, Genco, Armando, Gigli, Giuseppe, Lerario, Giovanni, Mangione, Federica, Sanvitto, Daniele   +10 more
core   +2 more sources

A Position Estimator Using Kalman Filter With a Data Rejection Filter for a Long-Stator Linear Synchronous Motor of Maglev

IEEE Access, 2020
As a maglev levitates with a small air gap and runs very fast, securing the levitation system's stability is crucial. Thus, the high-performance decoupling control between the propulsion control system and the levitation system is of critical importance.
Jeong-Min Jo, Seok Y. Lee, Kwangjoo Lee, Ye Jun Oh, Su Y. Choi, Chang-Young Lee, Kwansup Lee   +6 more
doaj   +1 more source

High-speed imaging in fluids [PDF]

, 2013
High-speed imaging is in popular demand for a broad range of experiments in fluids. It allows for a detailed visualization of the event under study by acquiring a series of image frames captured at high temporal and spatial resolution. This review covers
Versluis, M.
core   +4 more sources

Analysis and Optimization of the Causes of Cracks in the Pavement of Highway and Railway Intersections [PDF]

E3S Web of Conferences
Firstly, an in-depth analysis is conducted on the principle of crack formation in the pavement panel of highway and railway level crossings and the reasons for cracks under load. Then, based on the characteristics of crack formation in the pavement panel,
Huang Xingqi, Liu Dashun, Lian Dong, Liu Fengmao   +3 more
doaj   +1 more source

Building vulnerability assessment on an urban scale: A case study on heavy rainfall events [PDF]

E3S Web of Conferences
This paper presents a semi-automated approach for assessing building vulnerability on an urban scale, specifically focusing on floods and heavy rainfall events.
Rosin Julia, Vetter Joanna Zarah, Neuhaeuser Stefan, Stolz Alexander   +3 more
doaj   +1 more source

Influence of unsupported sleepers on the dynamic stability of ballasted bed based on wheelset impact tests

Railway Engineering Science, 2023
The unsupported sleeper can change the load characteristics of ballast particles and thus affect the dynamic stability of a ballasted bed. In this work, a laboratory test was constructed on a ballasted track containing unsupported sleepers. The ballasted
Juzhen Liu, Shuai Du, Ganzhong Liu, Ping Wang, Rong Chen, Xiankui Wei, Hao Liu   +6 more
doaj   +1 more source

Research on Variable-Step-Size Adaptive Filter Algorithm with a Momentum Term

Applied Sciences, 2023
To address the contradiction between the convergence error and convergence rate in the LMS algorithm, this study proposes a variable-step-size adaptive filter algorithm with a momentum term based on the logistic function.
Binbin Li, Bo Lu, Xiping Kou, Yang Shi, Li Yu, Hongtao Guo, Binbin Lv, Kaichun Zeng   +7 more
doaj   +1 more source

Ultra high‐speed sorting [PDF]

Cytometry Part A, 2005
AbstractBackgroundCell sorting has a history dating back approximately 40 years. The main limitation has been that, although flow cytometry is a science, cell sorting has been an art during most of this time. Recent advances in assisting technologies have helped to decrease the amount of expertise necessary to perform sorting.MethodsDroplet‐based ...
openaire   +3 more sources