39 research outputs found
A Norm Utilisation for Scarce Hospital Resources: Evidence from Operating Rooms in a Dutch University Hospital
Association between operational indexes and the utilization rate of a general surgery center
Detection and estimation of frequency hopping signals using wavelet transforms
This thesis investigates the use of wavelet transforms in the detection and estimation of spread spectrum frequency hopping signals. The technique developed in this work makes only two basic assumptions of a minimum hopping time and a minimum frequency hopping differential. The approach is based on the phase information of the temporal correlation function and the resulting discrete wavelet transform is used to estimate the hopping time of frequency hopping signals. Results show the proposed scheme is robust to additive white noise for SNR levels of 3 dB and above.http://archive.org/details/detectionndestim1094531944NANAU.S. Marine Corps (U.S.M.C.) author.Approved for public release; distribution is unlimited
Processing of Second Order Statistics via Wavelet Transforms
The views expressed in this report are those of the author and do not reflect the offical policy or position of the Department of Defense or the United States Government.Research was conducted to evaluate the feasibility of wavelet transforming second order statistics. To identify the modulation type and to extract signal modulation parameters of frequency hopped signals wavelet functions are applied to the two-dimensional instantaneous correlation function. Parameters of interest are switching times and hop frequencies. The characteristics of the wavelet transform of the correlation function is derived. The wavelet transform is applied along the delay and the time axes. Processing along the delay axis allows the identification of frequency hopped signals and estimation of frequencies and switching times. Processing along the time axis allows detection of the transition times of frequency and time hopped signals.Prepared for: Space and Naval Warfare Systems CommandMIPR 97245TApproved for public release; distribution is unlimited
5. FUNDING NUMBERS
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, t
Perimortem cesarean delivery in a pregnant patient with goiter, preeclampsia, and morbid obesity
Cardiopulmonary arrest during pregnancy is a devastating event necessitating rapid intervention from experienced practitioners to reduce the incidence and severity of adverse maternal and fetal outcomes. Perimortem cesarean delivery is rarely performed within the recommended time frame to meet these goals. We describe a case of a successful perimortem cesarean delivery after the 4-minute rule in a morbidly obese parturient with goiter and preeclampsia
Opioid-induced respiratory depression in paediatrics: a review of case reports
Perioperative Medicine: Efficacy, Safety and Outcom
Pharmacovigilance: A Review of Opioid-Induced Respiratory Depression in Chronic Pain Patients
Perioperative Medicine: Efficacy, Safety and Outcom