| 1. |
- Yang, Junkai, et al.
(författare)
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A mechanism of timing variability underlying the association between the mean and SD of asynchrony
- 2019
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Ingår i: Human Movement Science. - : Elsevier. - 0167-9457 .- 1872-7646. ; 67
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Tidskriftsartikel (refereegranskat)abstract
- Sensorimotor timing behaviors typically exhibit an elusive phenomenon known as the negative asynchrony. When synchronizing movements (e.g. finger taps) with an external sequence (e.g. a metronome), people’s taps precede event onsets by a few tens of milliseconds. We recently reported that asynchrony is less negative in participants with lower asynchrony variability. This indicates an association between negative asynchrony and variability of timing. Here, in 24 metronome-synchronization data sets, we modeled asynchrony series using a sensorimotor synchronization model that accounts for serial dependence of asynchronies. The results showed that the modeling well captured the negative correlation between the mean and SD of asynchrony. The finding suggests that serial dependence in asynchronies is an essential mechanism of timing variability underlying the association between the mean and SD of asynchrony.
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| 2. |
- Yang, Junkai, et al.
(författare)
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Tapping ahead of time : its association with timing variability
- 2020
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Ingår i: Psychological Research. - : Springer Berlin/Heidelberg. - 0340-0727 .- 1430-2772. ; 84, s. 343-351
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Tidskriftsartikel (refereegranskat)abstract
- Researchers have puzzled over the phenomenon in sensorimotor timing that people tend to tap ahead of time. When synchronizing movements (e.g., finger taps) with an external sequence (e.g., a metronome), humans typically tap tens of milliseconds before event onsets, producing the elusive negative asynchrony. Here, we present 24 metronome-tapping data sets from 8 experiments with different experimental settings, showing that less negative asynchrony is associated with lower tapping variability. Further analyses reveal that this negative mean-SD correlation of asynchrony is likely to be observed for sequence types appropriate for synchronization, as indicated by the statistically negative lag 1 autocorrelation of inter-response intervals. The reported findings indicate an association between negative asynchrony and timing variability.
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| 3. |
- Yang, Hui, et al.
(författare)
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Improving Electrical Performance of Few-Layer MoS2 FETs via Microwave Annealing
- 2019
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Ingår i: IEEE Electron Device Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 0741-3106 .- 1558-0563. ; 40:7, s. 1116-1119
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Tidskriftsartikel (refereegranskat)abstract
- A few-layer molybdenum disulfide (MoS2) has attracted great attention because of its novel electrical and optoelectrical properties for devices. In this letter, we perform a systematic study on the evolution of the electrical performance of the few-layer MoS2 field-effect transistors (FETs) under microwave annealing. As a result, obvious improvements on electrical properties are achieved for the sample annealed in N-2 ambience between 420 and 840 W. The on/off current ratio of similar to 8.34 x 10(8) and the hysteresis of 2.1 V, which are similar to 150 times higher and similar to 2.1 times smaller compared with that of fabricated MoS2 FET, respectively. The proposed technique provides a new method to approach high-performance few-layer MoS2 FETs with minimized parasitic resistances.
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| 4. |
- Zeng, Ruixue, et al.
(författare)
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Modelling and Characterization of Novel Reference-Less Semiconductor Ion Sensor for pH Sensing
- 2019
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Ingår i: Sensors and actuators. B, Chemical. - : Elsevier BV. - 0925-4005 .- 1873-3077. ; 281, s. 60-71
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Tidskriftsartikel (refereegranskat)abstract
- A SPICE macromodel is developed for a novel reference-less semiconductor ion sensor (RELESIS), which has been proposed to eliminate the use of reference electrode in the field effect based sensor detection. The working principle of the RELESIS, previously validated by a prototype device via pH sensing, is featured by non-constant bulk solution potential, which distincts itself from any conventional ion sensitive field effect transistor. Simulations are performed here using the macromodel and the results fit well with the experimental data. The proposed SPICE macromodel can be used to predict the behavior of the RELESIS and carry out performance optimizations for the RELESIS to be used in various applications.
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