منابع مشابه
A Simple Bioelecrical Signal Simulator for Measurement Device Testing
− A very simple PC based system for simulation of bioelectrical signals is presented. In addition to a regular PC with an audio card and the constructed software only few passive components are needed to accurately mimic the waveforms of the original recorded bioelectrical signals stored in the PC’s hard drive. Alternatively, the simulated signals that are generated from the original recordings...
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skillful questioning of the Scottish Highlands drew forth revealing answers, telling of the origin of mountain ranges and their evolution in the past. SIR JOSEPH BARCROFT-An investigator of many phases of the respiration of higher animals; a beloved guide to younger men on both sides of the Atlantic. FRIEDRICH BERGIUS-A modern magician; his knowing touch transforms coal to oil. NORMAN LEVI BOWE...
متن کاملA Simple Device for Gravimetric Sampling.
In view of the increased importance attached to the gravimetric sampling of airborne dust in mines and other working places, it was recently decided to start regular gravimetric sampling in the experimental animal dusting rooms in this Unit. As no suitable sampling instrument was available, a Hexhlet dust sampler was modified by fitting it with a probe in place of the elutriator. This instrumen...
متن کاملA new device for simple and accurate urinary pH testing by the Stone-former patient
PURPOSE Urinary pH is an important factor linked to renal stone disease and a useful marker in the treatment of urolithiasis. Although the gold standard for measuring urinary pH utilizes a glass electrode and a pH meter, at present dipstick testing is largely used to estimate urinary pH. However, the accuracy and precision of this method may be insufficient for making clinical decisions in pati...
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Background: Peritoneal dialysis (PD) is an efficient alternative for hemodialysis. Removal of waste metabolites and excess water from the blood circulation are the two main tasks done during dialysis. These are done by using a filter; in PD, the naturally semi-permeable peritoneal membrane acts as the filter. Automated PD machines control intelligently the operations to enhance the efficiency a...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1945
ISSN: 0007-1161
DOI: 10.1136/bjo.29.7.376