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Biodegradable and Edible Milli‐Fluidic Logic Circuits
Advanced Materials Technologies, EarlyView.Fully biodegradable and edible fluidic circuits are developed using gelatin‐based valves that operate at low pressure. Logic gates, a one‐bit memory, and a ring oscillator are demonstrated, showing that biodegradable materials can perform computation and control.
Shuhang Zhang +3 more
wiley +1 more source
Chemical Physics Letters, 2018 WOS: 000443278800024We have computed the ground and excited state energies and the wave functions of a spherical quantum dot with finite potential barrier in the presence of magnetic field.
Ayhan Özmen, Yusuf Yakar
exaly +2 more sources
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Minimum Field Strength in Precessional Magnetization Reversal
Science, 1999Ultrafast magnetic field pulses as short as 2 picoseconds are able to reverse the magnetization in thin, in-plane, magnetized cobalt films. The field pulses are applied in the plane of the film, and their direction encompasses all angles with the magnetization. At a right angle to the magnetization, maximum torque is exerted on the spins.
Back CH +6 more
openaire +3 more sources
The strength of galactic magnetic fields
Nature, 1993THE magnitudes of galactic magnetic fields are usually estimated from measurements of the radio synchroton emission arising from acceleration of cosmic-ray electrons in the magnetic field. To interpret the emission spectrum, it is usually assumed that the energy density in the magnetic field is equal to that in the cosmic-ray protons (which are assumed
X. Chi, A. W. Wolfendale
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Concomitant magnetic field gradients and their effects on imaging at low magnetic field strengths
Magnetic Resonance Imaging, 1990Low-field NMR imaging systems which use large amplitude field gradient pulses (e.g., in flow velocity encoding) may be subject to the undesirable effects of concomitant gradients. We demonstrate the effects of these extra gradients, which arise from Maxwell's equations, and show that the resultant image phase shifts and amplitude changes are consistent
D G, Norris, J M, Hutchison
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Perturbation to the magnetic field strength
Physics of Plasmas, 2006The variation in the magnetic field strength on a magnetic surface as a function of the magnetic angles is one of the most important properties of an equilibrium because it determines the trajectories of the charged particles. Even a small change in the field strength can produce a qualitative change in the trajectories.
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Prediction of the interplanetary magnetic field strength
Journal of Geophysical Research: Space Physics, 1995A new model of the coronal and interplanetary magnetic field can predict both the interplanetary magnetic field strength and its polarity from measurements of the photospheric magnetic field. The model includes the effects of the large‐scale horizontal electric currents flowing in the inner corona, of the warped heliospheric current sheet in the upper ...
Xuepu Zhao, J. Todd Hoeksema
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High-Field-Strength Magnetic Resonance
Topics in Magnetic Resonance Imaging, 2007To expatiate on the possible advantages and disadvantages of high magnetic field strengths for magnetic resonance imaging and, in particular, for magnetic resonance angiography.A review of the available literature is given, presenting many of the advantages and disadvantages of imaging at higher field strengths.
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Magnetic resonance imaging: effects of magnetic field strength.
Radiology, 1984Magnetic resonance images of the head, abdomen, and pelvis of normal adult men were obtained using varying magnetic field strength, and measurements of T1 and T2 relaxations and of signal-to-noise (SN) ratios were determined. The T1 relaxation of gray matter, white matter, and muscle increases and T2 decreases with field strength, while T1 of fat ...
L E, Crooks +5 more
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A Magnetic Field Strength Meter Using the Proton Magnetic Moment
Review of Scientific Instruments, 1949A simple, portable instrument is described which employs the nuclear absorption method and the known value of the proton magnetic moment to determine magnetic field strength. No known fields and no geometrical calculations are required for calibration. The range covered by the present instrument is approximately 3000 to 19,000 gauss.
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