Results 21 to 30 of about 346,176 (326)
Long distance manipulation of a levitated nanoparticle in high vacuum [PDF]
, 2015 Accurate delivery of small targets in high vacuum is a pivotal task in many branches of science and technology. Beyond the different strategies developed for atoms, proteins, macroscopic clusters and pellets, the manipulation of neutral particles over ...
Berthelot, Johann +5 more
core +3 more sources
An Asymmetric Feature Enhancement Network for Multiple Object Tracking of Unmanned Aerial Vehicle
Remote Sensing, 2023 Multiple object tracking (MOT) in videos captured by unmanned aerial vehicle (UAV) is a fundamental aspect of computer vision. Recently, the one-shot tracking paradigm integrates the detection and re-identification (ReID) tasks, striking a balance ...
Jianbo Ma +5 more
doaj +1 more source
Coherent manipulation of atomic qubits in optical micropotentials [PDF]
, 2007 We experimentally demonstrate the coherent manipulation of atomic states in far-detuned dipole traps and registers of dipole traps based on two-dimensional arrays of microlenses.
A. Kaplan +24 more
core +2 more sources
Sensors, 2018 This paper proposes and demonstrates a phase-sensitive optical time domain reflectometry (Φ-OTDR) sensing system with multi-spatial resolution (MSR) analysis property.
Yuanyuan Shan +6 more
doaj +1 more source
Bayesian Model for 3D Undulating Terrain Depth Estimation Using Photon Counting LiDAR
Remote Sensing, 2023 Photon counting LiDAR can capture the 3D information of long-distance targets and has the advantages of high sensitivity and high resolution. However, the noise counts restrict improvements in the photon counting imaging quality.
Rui Wang +5 more
doaj +1 more source
IEEE Photonics Journal, 2019 In phase-sensitive optical time-domain reflectometry (Φ-OTDR), the frequency drift of the laser source induces the fluctuation of signal, which limits the measurement capacity of Φ-OTDR for low frequency severely.
Quan Yuan +4 more
doaj +1 more source
Independent trapping and manipulation of microparticles using dexterous acoustic tweezers [PDF]
, 2014 An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap ...
Cochran, Sandy +6 more
core +4 more sources
Localized optical manipulation in optical ring resonators
Optics Express, 2015 We propose a tunable optical trapping system for nanoparticles based on generating standing wave by coupling two coherent beams into a ring resonator in opposite directions, respectively. The distributions of the mode field excited in three types of the ring-resonators-based trapping systems (microring, microdisk and slot ring) and the corresponding ...
Haotian, Wang, Xiang, Wu, Deyuan, Shen
openaire +2 more sources
Optical Trapping and Manipulation [PDF]
, 2010 A number of applications of microsystem technology require manipulation with high accuracy. Microreactors and microdiagnostic devices can be easily constructed with millimetre accuracy [1], but micrometre precision appears also to be realistic (see for example Fig. 3 below).
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Remote Sensing, 2023 Star identification plays a key role in spacecraft attitude measurement. Currently, most star identification algorithms tend to perform well only in a scene without noise and are highly sensitive to noise.
Zijian Zhu +7 more
doaj +1 more source