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Abstract  

The character and values of corrections are discussed which are required in the application of monitors (in particular, copper monitors) for the activation analysis of copper, zinc and manganese in biological samples.

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Lorenzovi, G., (2000): Monitoring of heavy metal deposition in Northern Italy by moss analysis. — Environ. Pollut. 108 : 201–208. Lorenzovi G. Monitoring of heavy metal deposition in

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monitoring the sample dimension by means of Thermomechanical Analysis (TMA). The aim of this article is to describe the application of such a method of measurement in the study of crystallization kinetics of Ge 38 S 62 glass that has been previously studied

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the Gemenc-Béda-Karapancsa floodplain 2009 BME-Bioaqua Pro Consortium, Monitoring system plans in the pilot areas and for the

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Il’ichev, A. L. (2004): First Australian trials of ethyl (2 E , 4 Z )-2,4-decadienoate for monitoring of female and male codling moth Cydia pomonella L. (Lepidoptera: Tortricidae) in pome fruit orchards. Gen. Appl. Entomol. 33, 15

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fluid responsiveness in patients with hypotension. Here, we present the case of a hypotensive patient monitored with TDI measurements of the RV. Case Report A 75-year-old male patient was admitted to the emergency department

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Abstract  

The Preparatory Commission of Comprehensive Nuclear Test-Ban-Treaty Organization is setting up a global network capable to monitor treaty compliance. Specific monitoring systems and methodologies that match the needs of the International Monitoring System (IMS), namely to clarify the nuclear character of suspect explosions, had to be developed for monitoring purposes during the last decade. Four xenon isotopes, namely 133Xe, 135Xe, 133mXe and 131mXe play a key role here. A complex background from medical isotope production facilities and nuclear power plants, varying over four orders of magnitude, challenges the system’s capability to distinguish these from treaty-relevant events. Available measurement data are compared with model calculations. The importance of atmospheric transport modelling is demonstrated both for completely understanding the civilian background and for explaining peak concentrations and abnormal events. New methodologies for backtracking nuclide detections improved the capability to locate sources and corroborate the role of radioxenon monitoring.

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Abstract  

Pacific Northwest National Laboratory (PNNL) has deployed a large array of radiation portal monitors for the Department of Homeland Security and U.S. Customs and Border Protection. These portal monitors scan incoming vehicles crossing the U.S. border and shipping containers leaving international ports for radioactive material via gamma-ray and neutron detection. Data produced and captured by these systems are recorded for every vehicle related to radiation signature, sensor/system status, local background, as well as a host of other variables. Within the Radiation Portal Monitor Project at PNNL, state-of-health observation and analysis for the whole RPM array using these data to determine functionality and performance is ongoing. Advanced state-of-health analysis and monitoring algorithms are being developed. Preparations are underway to incorporate the more difficult state-of-health monitoring of the mobile RPM and Advanced Spectroscopic Portals.

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Abstract

Introduction

In the current era of acute coronary interventions, patients who suffer a myocardial infarction (MI) are discharged either to home or to a rehabilitation facility very rapidly, after just a few days. Mortality, however, is highest during the first month after MI. Patients with decreased left ventricular systolic function who lost a significant percentage of their myocardium are at the highest risk. Given the advances of telemedicine, it may therefore be important to develop new methods of home arrhythmia monitoring for these patients.

Objective

To determine the reliability of an internet-based continuous home arrhythmia monitoring during the first month after discharge in patients with decreased left ventricular function who suffered an acute MI and underwent coronary intervention.

Methods

Numerous telephone-based ECG monitoring systems exist but the authors present their experiences with a new technology involving continuous internet-based ECG monitoring which does not require activation by the patient. A mobile internet-based device was developed for patients who had no access to internet.

Results

We monitored 10 post-MI patients with an ejection fraction of less than 40% who were discharged home. Cumulative monitoring time was 170 days. The completely noise-free and error-free ECG periods amounted to 98 % and 99%, respectively. Average time to response to the 66 alarms raised was 27 seconds. The average number of alarms per day was 0.39 while the positive predictive value was 0.106. Total alarm time was 29.8 minutes which works out to 10.5 seconds per day.

Conclusions

As the unique chest band we developed makes it possible to record error-free ECGs during most of the monitoring period, our method appears to be suitable for home monitoring of patients discharged from hospital. The low alarm time means that many patients can be monitored simultaneously without compromising patient safety.

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Journal of Radioanalytical and Nuclear Chemistry
Authors: Yang Ya-xin, Liu Qing-cheng, Wu Xin-min, Huang Yan-jun, Lin Jun, Wu Ya-mei, Li Shu-zhen, and Hsia Yuan-fu

Summary  

A new air radon monitor is proposed based on the combination of an aluminum disk and an electric multilevel clearance system (EMCS). The positively charged, small aluminum disk has a high collection ability to radon with a collection efficiency of about 60%. The old radon progenies were eliminated by the EMCS in the air entrance of the monitor with an efficiency of about 99%. The monitor was calibrated in the national standard radon chamber in Hengyang, China. Compared to the radon double-filter equipment, the results, gained by both apparatus, coincide with each other.

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