E mergency physicians face numerous questions regarding proper management of patients and selection ofthe best laboratory test or imaging every day. Knowledge on screening performance characteristics of the diagnostic tools used in this department plays an important role in finding the answers to these questions. We assessed these characteristics in the previous parts of educational article ser...

This paper describes two novel algorithms based on the time-modulo reconstruction method intended for detection of the parametric faults in analogue-to-digital converters (ADC). In both algorithms, a pulse signal, in its slightly adapted form to allow sufficient time for converter settling, is taken as the test stimulus relieving the burden placed on the accuracy requirement of the excitation s...

The Project German Indexing and Retrieval Test Data base (GIRT) provides a framework for the comparison of indexing and retrieval systems using German scientific information which is based on the social sciences. The aims and methods of the test environment are described. Some results of the pre-test, which was carried out with the retrieval systems Messenger and freeWAISsf, are shown and the c...

Abstract This article uses an image processing method to study the hydrophobicity of transformer composite insulators, and then determine surface aging performance insulators. In order meet requirements randomness ambiguity hydrophobic image, this paper a series algorithms process insulator: enhancement based on adaptive histogram equalization, wavelet transform Filtering segmentation grade cla...