Results 111 to 120 of about 116,272 (167)

Taking the Pulse of the Current State of Simulation

Critical Care Clinics, 2023
Simulation in health-care professions has grown in the last few decades. We provide an overview of the history of simulation in other fields, the trajectory of simulation in health professions education, and research in medical education, including the learning theories and tools to assess and evaluate simulation programs.
Anisha, Kshetrapal, Mary E, McBride, Candace, Mannarino   +2 more
openaire   +2 more sources

Current Pulses in β-Carotene

Nature, 1964
WE are at present investigating the absorption spectra and photoconduction behaviour, as well as the electric properties of polyene molecules, in particular, of the molecule β-carotene. This molecule occurs widely in plants and animals. Although β-carotene itself does not occur in the visual pigments it can be considered a precursor of retinene, the ...
D, CHAPMAN, R J, CHERRY
openaire   +2 more sources

Pulse-by-Pulse Predictive Current Limiter

Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06., 2006
This paper presents a predictive based current limiting controller for a boost converter that was developed to charge an electric vehicle battery from the vehicle propulsion bus in an automotive bi-directional conversion system. To meet aggressive power density requirements, it was necessary to operate the three-stage interleaved converter magnetics ...
B.S. Borowy, L.F. Casey
openaire   +1 more source

Surface roughening in pulse current and pulse reverse current electroforming of nickel

Surface and Coatings Technology, 1997
Abstract Electrodeposition of metals to the thickness required for electroforming inevitably results in roughening of the deposited surface. Although in some cases, post machining can be adopted to improve the texture of deposited surfaces, it is not feasible for micro-electroformed components because of their small size.
N.S. Qu, K.C. Chan, D. Zhu
openaire   +1 more source

PULSING AND CIRCULATION IN RIP CURRENT SYSTEM

Coastal Engineering 2004, 2005
Current pulsations from a longshore bar and trough rip system located on the eastern coast of Moreton Island, Australia are presented. These pulsations occur over 10-20minute intervals through the rip system and are correlated to both water level gradients and wave energy variations.
Callaghan, D., Baldock, T. E., Nielsen, P., Hanes, D., Haas, K., MacMahan, J.   +5 more
openaire   +3 more sources

Diffusion of Pulsed Currents in Conductors

Journal of Applied Physics, 1954
The density distribution and the equivalent depth of penetration of pulsed currents produced by a plane wave incident normally upon a plane conductor are investigated. In particular the cases i(t)=I0p(t), [I0/(t)12]p(t), I0e−αtp(t), where p(t)=U(t)[minus]U(t[minus]T0), are considered.
openaire   +1 more source

Influence of Internal Pulsed Current on the Sintering Behavior of Pulsed Current Sintering Process

Materials Science Forum, 2010
To clarify the influence of internal pulsed current upon the sintering behavior of powder materials during spark plasma sintering processing, simultaneous measurement of internal current using magnetic probe was carried out. Magnetic probe is installed to the side of the sintering ZnO powder material through the carbon graphite sintering die, and ...
Tatsuya Misawa, Noburo Shikatani, Yuji Kawakami, Takashi Enjoji, Yasunori Ohtsu   +4 more
openaire   +1 more source

Simple pulse current transformer to check magnetron pulse current

Journal of Scientific Instruments, 1967
A simple pulse current transformer can give more faithful pulse reproduction and avoid the problems inherent in the conventional series-resistance circuit to measure magnetron pulse current. The design equations for such a transformer are given and a practical unit to measure 6-10 A pulses of 0.05-2 μsec duration in a 15 kv magnetron pulser is ...
openaire   +1 more source

Current adder with programmable pulse shaping

2007 16th IEEE International Pulsed Power Conference, 2007
Advancements in fusion research and Equation of State (EOS) experiments have led to a need for greater control over the shape of the current waveform in the load. This added complexity will necessitate more sophisticated pulsed power designs. Challenges introduced by these new systems include the requirement for more elaborate control systems to ...
F. E. White, S.F. Glover, K.W. Reed, M.J. Harden   +3 more
openaire   +1 more source