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A novel approach to analyse Quality of Service (QoS) and Data Transfer in a flexible and robust field area network (FAN) is presented. Based on the special fieldbus system architecture an analysing tool using the cables near field information was implemented. Contactless access to the network traffic is an approach to minimize retroactive effects of the analysing tool onto the network. Therefore,...
A novel approach to identify nodes in a flexible and robust field area network (FAN) is presented. Based on the special fieldbus system architecture a master node may identify unknown slave nodes, collect them and form a running network. The paper shows how the identification is done and presents calculations for the probability and the expected time to find all nodes. Optimal parameters for the identification...
A novel approach for a very flexible and robust field area network (FAN) was developed. To fulfill the particular timing constraints given by the communication of the highly dynamic processes at lower FAN levels, the packet-based approach uses discrete multitone for parallel access to many devices. This paper gives a description of the packet based approach. Several aspects of the medium access organization,...
Trace metal accumulation in tree rings of Jeffrey pines (Pinus jeffreyi) from the Lake Tahoe basin (Sierra Nevada, CA, USA) was determined using high resolution inductively coupled plasma mass spectrometry (HR-ICP–MS). The objectives of this study were (1) to establish baseline values for aluminium (Al), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), strontium...
Study objective: Determine the sensitivity and specificity of [F-18]-fluorine-2-deoxy-d-glucose positron emission tomography (FDG-PET) in differentiating non-small cell lung cancer (NSCLC) from benign solitary pulmonary nodules (SPNs) in a region with a high endemic rate of histoplamosis. Design: Prospective, clinical study. Setting: University, tertiary referral hospital in the upper Mississippi...
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