Results 41 to 50 of about 1,471,016 (341)

Determination of the arrival time of seismic signals based on the analysis of their phase characteristics [PDF]

open access: yesГеосистемы переходных зон
The article discusses methodological issues of applying phase characteristics in determining the arrival time of seismic waves. The accuracy of earthquake location depends on the precision with which the arrival times of longitudinal, transverse, and ...
Aleksandrov, Pavel N., Stasenko, Liya V.
doaj   +1 more source

Quantum Arrival Time For Open Systems

open access: yes, 2012
We extend previous work on the arrival time problem in quantum mechanics, in the framework of decoherent histories, to the case of a particle coupled to an environment.
A. Abramowitz   +8 more
core   +1 more source

Times of arrival: Bohm beats Kijowski

open access: yes, 2005
We prove that the Bohmian arrival time of the 1D Schroedinger evolution violates the quadratic form structure on which Kijowski's axiomatic treatment of arrival times is based. Within Kijowski's framework, for a free right moving wave packet, the various
Berndl K   +9 more
core   +1 more source

Time of arrival in the presence of interactions [PDF]

open access: yes, 2000
We introduce a formalism for the calculation of the time of arrival t at a space point for particles traveling through interacting media. We develop a general formulation that employs quantum canonical transformations from the free to the interacting ...
A. M. Steinberg   +39 more
core   +3 more sources

Dexamethasone for Chemotherapy‐Induced Nausea and Vomiting Prevention in Pediatric Patients: International Consensus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background An international Delphi panel of experts developed consensus statements to delineate the circumstances where the risks of dexamethasone as an antiemetic do and do not outweigh its benefits. Procedure Experts in supportive care of pediatric patients were invited to participate.
Negar Shavandi   +20 more
wiley   +1 more source

Artificial neural network model for arrival time computation in gate level circuits

open access: yesAutomatika, 2019
Advances in the VLSI process technology lead to variations in the process parameters. These process variations severely affect the delay computation of a digital circuit. Under such variations, the various delays, i.e. net delay, gate delay, etc., are no
S. R. Ramesh, R. Jayaparvathy
doaj   +1 more source

MagInfoNet: Magnitude Estimation Using Seismic Information Augmentation and Graph Transformer

open access: yesEarth and Space Science, 2022
In this study, we propose a reliable data‐driven tool, MagInfoNet, to enhance the accuracy of magnitude estimation. Its architecture was assembled using the Pre‐Inform and Mag‐Pred modules to replace and update the key functions of traditional seismic ...
Ziwei Chen   +4 more
doaj   +1 more source

Exact Energy-Time Uncertainty Relation for Arrival Time by Absorption

open access: yes, 2011
We prove an uncertainty relation for energy and arrival time, where the arrival of a particle at a detector is modeled by an absorbing term added to the Hamiltonian.
Andreas Ruschhaupt   +11 more
core   +1 more source

Analysis and Computation of the Joint Queue Length Distribution in a FIFO Single-Server Queue with Multiple Batch Markovian Arrival Streams [PDF]

open access: yes, 2014
This paper considers a work-conserving FIFO single-server queue with multiple batch Markovian arrival streams governed by a continuous-time finite-state Markov chain.
Masuyama, Hiroyuki, Takine, Tetsuya
core   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

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