Results 1 to 10 of about 11,654,333 (303)

Feedforward equilibrium trajectory optimization with GSPulse

open access: yesNuclear Fusion
One of the common tasks required for designing new plasma scenarios or evaluating capabilities of a tokamak is to design the desired equilibria using a Grad-Shafranov (GS) equilibrium solver.
J.T. Wai   +7 more
doaj   +1 more source

Ferroelectric Control of Magnetic Anisotropy

open access: yesNano Letters, 2011
We demonstrate unambiguous evidence of the electric field control of magnetic anisotropy in a wedge-shaped Co film of varying thickness. A copolymer ferroelectric of 70% vinylidene fluoride with 30% trifluoroethylene, P(VDF-TrFE) overlays the Co wedge, providing a large switchable electric field. As the ferroelectric polarization is switched from up to
Mardana, Abhijit   +2 more
openaire   +3 more sources

High‐Efficiency Thermal Battery Regulated by Ultralow Magnetic Fields

open access: yesSmall Science
Controllable thermal storage has emerged as a central theme in advanced energy management, where external stimuli such as light, stress, and pressure can be exploited to precisely regulate heat release.
Lingli Li   +5 more
doaj   +1 more source

Magnetically Guided Microcatheter for Targeted Injection of Magnetic Particle Swarms

open access: yesAdvanced Science
The initial delivery of small‐scale magnetic devices such as microrobots is a key, but often overlooked, aspect for their use in clinical applications. The deployment of these devices within the dynamic environment of the human body presents significant ...
Harun Torlakcik   +15 more
doaj   +1 more source

Design of Attitude Control System of an Axisymmetric Satellite with Gravity Gradient Stabilization and Slow Spinning about Yaw Axis [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2008
In this paper, attitude control system of an axisymmetric satellite will be designed in such a way that required stability is provided with slow spinning about yaw axis.
H. Bolandi, B. Ghorbani Vaghei
doaj  

Reference frames and reference networks

open access: yesGeodesy and Cartography, 2015
The summary of research activities concerning reference frames and reference networks performed in Poland in a period of 2011-2014 is presented. It contains the results of research on implementation of IUGG2011 and IAU2012 resolutions on reference ...
Bosy Jaroslaw, Krynski Jan
doaj   +1 more source

Automated shot-to-shot optimization of the plasma start-up scenario in the TCV tokamak

open access: yesNuclear Fusion
Plasma start-up is typically achieved manipulating poloidal magnetic fields, gas injection and possibly auxiliary heating. Model-based design techniques have been gaining increasing attention in view of future large tokamaks which have more stringent ...
Luigi Emanuel di Grazia   +15 more
doaj   +1 more source

On-Surface Locomotion of Particle Based Microrobots Using Magnetically Induced Oscillation

open access: yesMicromachines, 2017
The low Reynolds number condition presents a fundamental constraint on designing locomotive mechanisms for microscale robots. We report on the use of an oscillating magnetic field to induce on-surface translational motion of particle based microrobots ...
U Kei Cheang   +4 more
doaj   +1 more source

Knockdown of RRM1 in tumor cells promotes radio-/chemotherapy induced ferroptosis by regulating p53 ubiquitination and p21-GPX4 signaling axis

open access: yesCell Death Discovery, 2022
Ferroptosis, a type of regulated cell death brought about by lipid peroxidation, has been discovered to suppress tumor growth. Here, we report that targeting RRM1 promotes ferroptosis and affects sensitivity to radiation and chemotherapeutics in cancer ...
Yang Gao   +6 more
doaj   +1 more source

Magnetic attitude control for satellites [PDF]

open access: yes2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601), 2004
In this paper it is proven that three-axis stabilization of satellites using magnetorqers is uniformly globally asymptotically stable (UGAS). The application of Matrosovs theorem allows for removal of the assumption that the geomagnetic (internal and external) field is periodic in order to establish this stability result.
openaire   +1 more source

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