Results 91 to 100 of about 21,579 (256)
The total energy--momentum tensor for electromagnetic fields in a dielectric
, 2017 There are various formulations of energy--momentum tensors for an electromagnetic field in a linear dielectric. The total energy--momentum tensor, comprised of electromagnetic and material components, must be unique.
Crenshaw, Michael E.
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Dynamic stereo microscopy for studying particle sedimentation [PDF]
, 2014 We demonstrate a new method for measuring the sedimentation of a single colloidal bead by using a combination of optical tweezers and a stereo microscope based on a spatial light modulator.
Ashkin +25 more
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CHROMOSOME MICROMANIPULATION [PDF]
The Journal of Cell Biology, 1969 Kinetochore reorientation is the critical process ensuring normal chromosome distribution. Reorientation has been studied in living grasshopper spermatocytes, in which bivalents with both chromosomes oriented to the same pole (unipolar orientation) occur but are unstable: sooner or later one chromosome reorients, the stable, bipolar orientation results,
R. Bruce Nicklas, Carol A. Koch
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Multimodal Locomotion of Soft Robots
Advanced Intelligent Systems, EarlyView.This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan +4 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.This work shows the successful integration of intrinsic bistability into thermoresponsive soft microactuators, fabricated by two‐photon polymerization utilizing the (E)–(Z)‐isomerization of azobenzenes. The bistable behavior accounts for a reversible volume change of Azo_pNIPAM microactuators initiated by light irradiation, at constant ambient ...
Chantal Barwig +13 more
wiley +1 more source
Experimental investigation of a SMC high precision control [PDF]
, 2006 In this paper a discrete-time Sliding-Mode (SM) based controller for high accuracy position control is investigated. The controller is designed for a general SISO system with nonlinearity and external disturbance. It will be shown that application of the
Abidi, Khalid Seyed +2 more
core
, 2005 Holographic optical tweezers use computer-generated holograms to create arbitrary three-dimensional configurations of single-beam optical traps useful for capturing, moving and transforming mesoscopic objects.
Allen +40 more
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Semi‐autonomous Navigation of Magnetic Microcarriers for Knee Cartilage Regeneration
Advanced Intelligent Systems, EarlyView.Autonomous navigation of magnetic microcarriers in complex 3D environments is investigated through a semi‐autonomous strategy integrating magnetic actuation with monocular visual feedback. Real‐time global tracking is achieved via radio‐frequency‐based localization and depth estimation, while model‐based computation determines optimal steering forces ...
Kim Tien Nguyen +3 more
wiley +1 more source
Micromachines, 2019 Sorting rare cells from heterogeneous mixtures makes a significant contribution to biological research and medical treatment. However, the performances of traditional methods are limited due to the time-consuming preparation, poor purity, and recovery ...
Huaping Wang +7 more
doaj +1 more source
Force feedback pushing scheme for micromanipulation applications [PDF]
, 2009 Pushing micro-objects using point contact provides more flexibility and less complexity compared to pick and place operation. Due to the fact that in micro-world surface forces are much more dominant than inertial forces and these forces are ...
Khan, Shahzad, Şabanoviç, Asif
core +1 more source