In this paper, multipath error on Global Navigation Satellite System (GNSS) signals in urban environments is characterized with the help of Light Detection and Ranging (LiDAR) measurements. For this purpose, LiDAR equipment and Global Positioning System (GPS) receiver implementing a multipath estimating architecture were used to collect data in an urban environment. This paper demonstrates how ...

Four methods used for the identification of ratoon stunting disease have been described previously (Steindl and Teakle 1974) and the relative merits of these methods discussed. An additional method using phase-contrast or dark-field microscopy has also been described (Gillaspie, Davis and Worley 1973). In view of the fact that this can be carried out in approximately the same time as the electr...

A-scans from ultrasonic testing of long shafts are complex signals. The discrimination of different types of echoes is of importance for non-destructive testing and equipment maintenance. Research has focused on selecting features of physical significance or exploring classifier like Artificial Neural Networks and Support Vector Machines. This paper confirms the observation that there seems to ...

The electrowinning of copper ions derived from leaching, or solvent extraction is a significant contributor to the global copper commodity supply. The process of electrolysis for copper was first developed in the late 19th century and despite numerous advancements in technology the principles and basic equipment remain the same. The first part of this paper deals with the theoretical requiremen...

AIM To examine the attitudes and intentions of general dental practitioners (GDPs) who work within the remit of the National Health Service (NHS) to provide relative analgesia (RA) for paediatric extractions. METHODS All 45 GDPs working within the boundaries of one Trust were asked to complete a questionnaire to assess demography, etc., intention and attitudes to provide RA for paediatric ext...

The performance of 2D digital imaging systems depends on several factors related with both optical and electronic processing. These concepts have originated standards, which have been conceived for photographic equipment and bi-dimensional scanning systems, and which have been aimed at estimating different parameters such as resolution, noise or dynamic range. Conversely, no standard test proto...

The medical imaging is the fastest growing subject in the field of clinical medicine. It runs through the whole process of clinical medicine. This paper chooses the edge feature of brain CT image. The classical operator of pixel level edge feature extractions were compared with the Zernike moments sub-pixel level edge feature extraction. And then the edge detection of improved Zernike moments f...

We have developed a reliable, rapid, and economical assay for the quantification of triacylglycerol (TG) in cells and animal tissues. In a few hours, this assay quantifies microgram amounts of TG from tens or even hundreds of samples. The protocol includes an organic extraction to partition TG away from proteins and other hydrophilic molecules found in cells and tissues that may interfere with ...

The process of quality assurance should demonstrate that the method and the analytical instrument provide accurate and precise results, or whether deterioration occurs. For this, the quality procedure should include tests which provide information on the characteristic performance of the method. According to the recent literature, useful procedures contributing to the overall quality of analyti...

A gaze tracking system, based on a novel neural approach, is proposed. The work is part of a wider research project concerning the development of human computer interfaces (HCI) addressed to disabled people, that could overcome the drawbacks of most of the existing methods for gaze tracking that require either intrusive devices or expensive equipment. This work, instead, aims at developing a lo...