Results 41 to 50 of about 2,021,055 (195)

Singular extremals for the time-optimal control of dissipative spin 1/2 particles

open access: yes, 2010
We consider the time-optimal control by magnetic fields of a spin 1/2 particle in a dissipative environment. This system is used as an illustrative example to show the role of singular extremals in the control of quantum systems. We analyze a simple case
Braun, M.   +4 more
core   +3 more sources

Magnetic and electric phase control in epitaxial EuTiO$_3$ from first principles

open access: yes, 2006
We propose a design strategy - based on the coupling of spins, optical phonons, and strain - for systems in which magnetic (electric) phase control can be achieved by an applied electric (magnetic) field.
C. Ederer   +3 more
core   +1 more source

Magnetic Hydrogel Micromachines with Active Release of Antibacterial Agent for Biofilm Eradication

open access: yesAdvanced Intelligent Systems
Bacterial biofilms are widely found in nature, and they can be a major factor in many local chronic infections inside the human body. To date, effective elimination of biofilms is intractable for conventional antibiotic therapies due to the existence of ...
Bonan Sun   +8 more
doaj   +1 more source

Mapping optogenetically-driven single-vessel fMRI with concurrent neuronal calcium recordings in the rat hippocampus

open access: yesNature Communications, 2019
Detailed characterization of large-scale hemodynamic responses linked to specific neural activity remains to be elucidated at the single-vessel level across the subcentimeter scale hippocampal vasculature in vivo.
Xuming Chen   +8 more
doaj   +1 more source

Magnetic states in multiply-connected flat nano-elements [PDF]

open access: yes, 2015
Flat magnetic nano-elements are an essential component of current and future spintronic devices. By shaping an element it is possible to select and stabilize chosen metastable magnetic states, control its magnetization dynamics.
Andrei B. Bogatyrev   +5 more
core   +2 more sources

Reconfigurable Liquid‐Bodied Miniature Machines: Magnetic Control and Microrobotic Applications

open access: yesAdvanced Intelligent Systems
Soft miniature machines demonstrate multimodal actuation and morphology change capabilities in narrow spaces smaller than their dimension. The wirelessly controlled soft‐bodied features make them promising candidates for microrobotic manipulation and ...
Qianqian Wang   +5 more
doaj   +1 more source

Cell Injection Millirobot Development and Evaluation in Microfluidic Chip

open access: yesMicromachines, 2018
We propose an innovative design of millirobot, which can achieve donor cell suction, delivery, and injection in a mammalian oocyte on a microfluidic chip.
Lin Feng   +6 more
doaj   +1 more source

Zinc oxide/graphene oxide nanocomposites efficiently inhibited cadmium-induced hepatotoxicity via releasing Zn ions and up-regulating MRP1 expression

open access: yesEnvironment International, 2022
Environmental cadmium (Cd) pollution has been verified to associated with various hepatic diseases, as Cd has been classified as one of the TOP 20 Hazardous Substances and liver is the main target of Cd poisoning.
Yun Liu   +9 more
doaj   +1 more source

Electric-field control of spin-orbit torque in a magnetically doped topological insulator

open access: yes, 2015
Electric-field manipulation of magnetic order has proved of both fundamental and technological importance in spintronic devices. So far, electric-field control of ferromagnetism, magnetization and magnetic anisotropy has been explored in various magnetic
Akyol, Mustafa   +18 more
core   +1 more source

Characteristics of the magnetic control of separable ferrous impurities contained in raw construction materials [PDF]

open access: yesИнженерно-строительный журнал, 2013
Currency of using the method of magnetic control of ferrous impurities for construction materials was noted. Especially it is important because of magnetic separators which are widely used for elimination of these impurities.
A.V. Sandulyak   +3 more
doaj   +1 more source

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