Results 21 to 30 of about 631,049 (308)

Timing precision in population coding of natural scenes in the early visual system [PDF]

, 2008
The timing of spiking activity across neurons is a fundamental aspect of the neural population code. Individual neurons in the retina, thalamus, and cortex can have very precise and repeatable responses but exhibit degraded temporal precision in response
Chong Weng, Jin, Jianzhong, Desbordes, Gaëlle, Jose-Manuel Alonso, Weng, Chong, Stanley, Garrett B., Lesica Nicholas A, Alonso Jose-Manuel, Lesica, Nicholas A., Jin Jianzhong, Jianzhong Jin, Alonso, Jose-Manuel, Desbordes Gaëlle, Garrett B Stanley, Nicholas A Lesica, Gaëlle Desbordes, Weng Chong, Stanley Garrett B   +17 more
core   +1 more source

Multi-Satellite Relative Navigation Scheme for Microsatellites Using Inter-Satellite Radio Frequency Measurements

Sensors, 2021
The inter-satellite relative navigation method—based on radio frequency (RF) range and angle measurements—offers good autonomy and high precision, and has been successfully applied to two-satellite formation missions.
Shiming Mo, Xiaojun Jin, Chen Lin, Wei Zhang, Zhaobin Xu, Zhonghe Jin   +5 more
doaj   +1 more source

GNSS Precise Relative Positioning Using A Priori Relative Position in a GNSS Harsh Environment [PDF]

Sensors, 2021
To enable Global Navigation Satellite System (GNSS)-based precise relative positioning, real-time kinematic (RTK) systems have been widely used. However, an RTK system often suffers from a wrong integer ambiguity fix in the GNSS carrier phase measurements and may take a long initialization time over several minutes, particularly when the number of ...
openaire   +3 more sources

Precision-recall (PR) curves in eligible seed sorting by discriminant models for various crop cultivars.

, 2023
The figure is drawn in the same style as Fig 8. The vertical axis indicates precision (P) in place of relative precision in Fig 8. (TIF)
Yoshinori Ohara (17014574), Osamu Matsuda (756159)   +1 more
core   +1 more source

Design and Development of Array POS for Airborne Remote Sensing Motion Compensation

Remote Sensing, 2022
Multi-antenna airborne remote sensing systems have received more attention recently because they can realize high-resolution three-dimensional (3-D) imaging, such as array Synthetic Aperture Radar (SAR).
Chunyu Qu, Jianli Li, Junfang Bao, Zhuangsheng Zhu   +3 more
doaj   +1 more source

High-precision relative clock synchronization using time stamp counters [PDF]

, 2008
In this paper we show how to use a computer processor's\ud Time Stamp Counter register to provide a precise and\ud stable time reference, via a high-precision relative clock\ud synchronization protocol.
Yu-Chu Tian, Colin Fidge, Tian, Yu-Chu, Guo-Song Tian, Fidge, Colin J., Tian, Guosong   +5 more
core   +1 more source

Small sample parts recognition and localization from unfocused images in precision assembly systems using relative entropy

, 2021
Recognition and localization of mechanical parts using machine vision is a common approach in precision assembly systems. However, positional inaccuracy in assembly systems often produces unfocused images.
Shi, Mingkuan, Sun, Weichen, Kwok, Ngai M. (R13463), Zhang, Zhijing, Zhang, Weimin, Shi, Lingling   +5 more
core   +1 more source

An Approach For Evaluation Of Semantic Performance Of Search Engines: Google, Yahoo, Msn And Hakia [PDF]

مجلة التربية والعلم, 2012
Ten queries of different subjects were run over yahoo, Google, Msn and Hakia search engines. Second set of experiment comprise four phrases of the same meaning but different syntax were attached to each query and the combinations were run over Hakia ...
Marwan S. M. Aldabbagh
doaj   +1 more source

Optimization of Selective Assembly for Shafts and Holes Based on Relative Entropy and Dynamic Programming

Entropy, 2020
Selective assembly is the method of obtaining high precision assemblies from relatively low precision components. For precision instruments, the geometric error on mating surface is an important factor affecting assembly accuracy.
Mingyi Xing, Qiushuang Zhang, Xin Jin, Zhijing Zhang   +3 more
doaj   +1 more source

Precision luminosity measurements at LHCb [PDF]

, 2014
Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy root s. In this paper results are reported from the luminosity calibrations carried out at the LHC interaction point 8 with the LHCb ...
Pescatore, L., Beaucourt, L., Baldini, W., Barschel, C., Barsuk, S., Alexander, M., Ajaltouni, Z., Amerio, S., Aaij, R., Anderlini, L., Williams, M. P., Kenyon, I. R., Bachmann, S., Barlow, R. J., Alves, A. A., Alkhazov, G., Battista, V., Baesso, C., Onderwater, C. J. G., Cartelle, P. Alvarez, Bedeschi, F., Belous, K., Mazurov, A., Artuso, M., An, L., Gutierrez, O. Aquines, Ali, S., Auriemma, G., Artamonov, A., Alves, Jr A., Archilli, F., Lazzeroni, C., Appleby, R. B., Beddow, J., Bediaga, I., Adeva, B., Affolder, A., Andreassen, R., Batozskaya, V., Anderson, J., Baalouch, M., Bifani, S., McCarthy, J., Onderwater, C. J. G.; id_orcid, Badalov, A., Watson, N. K.; id_orcid, Barter, W., Belogurov, S., Andrews, J. E., Griffith, P., Adinolfi, M., Aslanides, E., Farley, N., Andreotti, M., Amato, S., Akar, S., Alessio, F., Bay, A., Albrecht, J., Alvarez Cartelle, P., Amhis, Y., Back, J. J., Pellegrino, A., Parkinson, C. J.   +63 more
core   +1 more source