The gold standard of surgical treatment for superficial bladder tumor is transurethral resection (TUR). However, the procedure has drawbacks: it needs skill to avoid perforation of the bladder wall, while burns on the resected tissue are disadvantageous for histological examination. We developed an endoscopic ultrasonic aspiration system which is easy to manipulate and makes no burns on aspirat...

Versatile system for ultrasound equipment parameters measurement is presented. The system is based on single direct digital synthesis (DDS) generator which is used for excitation and dual simultaneous sampling analog-to-digit (ADC) conversion channels. System is dedicated for ultrasound equipment frequency domain parameters measurement: transduction AC response, insertion loss AC response, harm...

A-scans from ultrasonic testing of long shafts are complex signals, thus 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 summarizes and reports on our comprehens...

BACKGROUND Nowadays Medical equipment plays an important role in the treatment and in the medical education. Using outdated preventive maintenance (PM) system may cause problems in the cutting edge medical equipment, Nervous system disease's equipment (In diagnosis and treatment) which are crucial for every medical center. Based on above facts we focused on nervous system treat units' equipment...

A perfluorocarbon nanodroplet formulation is shown to be an effective cavitation enhancement agent, enabling rapid and consistent fragmentation of genomic DNA in a standard ultrasonic water bath. This nanodroplet-enhanced method produces genomic DNA libraries and next-generation sequencing results indistinguishable from DNA samples fragmented in dedicated commercial acoustic sonication equipmen...

5 Demeo DL, Campbell EJ, Barker AF, et al. IL10 polymorphisms are associated with airflow obstruction in severe alpha1-antitrypsin deficiency. We read with interest the article ''Paediatrics in Berlin'' [1] in a recent issue of the European Respiratory Journal, which sum-marised the paediatric topics of the European Respiratory Society's Annual Congress in Berlin. In this article, inert gas mul...

The National Institute of Standards and Technology (NIST) Standard Ultrasonic Source (SUS) is a system comprising a transducer capable of output power levels up to 1 W at multiple frequencies between 1 MHz and 30 MHz, and an electrical impedance-matching network that allows the system to be driven by a conventional 50 Ω rf (radio-frequency) source. It is designed to allow interlaboratory replic...