Results 261 to 270 of about 1,454,719 (294)
Some of the next articles are maybe not open access.
The American Journal of Emergency Medicine, 1990
The accuracy of the paramedic's estimated time until arrival (ETA) to an emergency department has never been studied. Two hundred and eighty paramedic runs were prospectively studied in a suburban, residency-affiliated emergency department. The average ETA was 7.39 +/- 3.72 minutes.
D A, Propp, C A, Rosenberg
openaire +2 more sources
The accuracy of the paramedic's estimated time until arrival (ETA) to an emergency department has never been studied. Two hundred and eighty paramedic runs were prospectively studied in a suburban, residency-affiliated emergency department. The average ETA was 7.39 +/- 3.72 minutes.
D A, Propp, C A, Rosenberg
openaire +2 more sources
Passive Source Localization Using Time Differences of Arrival and Gain Ratios of Arrival
IEEE Transactions on Signal Processing, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ho, K. C., Sun, Ming
openaire +2 more sources
Estimated time of arrival and debiasing the time saving bias
Ergonomics, 2015The time saving bias predicts that the time saved when increasing speed from a high speed is overestimated, and underestimated when increasing speed from a slow speed. In a questionnaire, time saving judgements were investigated when information of estimated time to arrival was provided.
Gabriella, Eriksson +3 more
openaire +2 more sources
Time of Arrival in Quantum Mechanics
Annals of Physics, 1995Abstract An expression for the quantum time of arrival based on the current density is discussed and justified operationally by means of complex potentials that absorb the incoming wave in a finite distance without reflection or transmission. Previous arguments denying the possibility of defining the time of arrival in quantum mechanics are refuted.
J.G. Muga, S. Brouard, D. Macias
openaire +1 more source
Quantum first time-of-arrival operators
Journal of Physics A: Mathematical and Theoretical, 2008This paper undertakes the problem of constructing first time-of-arrival operators for arbitrary everywhere analytic potentials in the space of operators spanned by the Bender?Dunne basis (Bender and Dunne 1989 Phys. Rev. D 40 3504). The operators are conjugate with their respective system Hamiltonians and reduce to their corresponding classical time-of-
Eric A Galapon, Anthony Villanueva
openaire +1 more source
Comment on “Arrival time in quantum mechanics” and “Time of arrival in quantum mechanics”
Physical Review A, 1999Contrary to claims contained in papers by Grot, Rovelli, and Tate [Phys. Rev. A 54, 4676 1996)] and Delgado and Muga [Phys. Rev. A 56, 3425 (1997)], the ``time operator,'' which I have constructed [Rep. Math. Phys. 6, 361 (1974)] in an axiomatic way, is a self-adjoint operator existing in a usual Hilbert space of (nonrelativistic or relativistic ...
openaire +1 more source
Navigation from time differences of arrival
The Journal of the Acoustical Society of America, 2004A brief history and a few modern developments are given for hyperboliclike navigation systems in which location is estimated from measurements of the difference in the propagation time of a signal from two or more known locations. Today, hyperbolic navigation is used in locating ships, calling animals, GPS receivers, cellular telephones, and other ...
openaire +1 more source