نتایج جستجو برای: meter measurement
تعداد نتایج: 463964 فیلتر نتایج به سال:
Small airway disease in infants is characterised by abnormal lung volume and uneven ventilation distribution. An inert tracer gas washin/washout technique using a pulsed ultrasonic flow meter is presented to measure functional residual capacity (FRC) and ventilation distribution in spontaneously breathing and unsedated infants. With a pulsed ultrasound sent through the main stream of the flow m...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
........................................................................................................... 1 PREFACE ............................................................................................................... 3 ACKNOWLEDGEMENTS.......................................................................................... 5 PURPOSE AND CONTRIBUTION ..................................
INTRODUCTION Glucose test strips vary slightly from batch to batch. These variations are accounted for by a batch-specific "code": a set of parameters defining the relationship between the signal change induced on the glucose test strip and the blood glucose concentration. METHODS We assessed the impact on accuracy of miscoding the ACCU-CHEK Aviva system across a wide range of glucose test st...
There are two methods for evaluating noise exposure in the workplace: dosimetry using a Personal Sound Exposure Meter (PSEM) and sampling using a sound level meter (SLM). This paper discusses the advantages and disadvantages of both methods in the context of the fundamental objectives of an occupational noise survey, i.e. identification of exposed workers, determination of exposure magnitude, a...
Rapid yet accurate measurement of the I activity in the thyroid gland as well as in the air, water and vegetation may have an important role in obtaining quantitative information on internal doses for the people living in the vicinity of nuclear facilities shortly after an accidental release of radionuclides (1-2). Whole body counting technique is still the standard method for measuring radionu...
The aim of this study is to develop oil content measurement system using transmitted and scattered intensity. Two fluorescence analyses would be suggested with methods that it can use rapidly, continuously, conveniently and accurately in long-distance cruise vessels. The present paper consists of the structure of fluorescence measurement hardware and an interpretative analysis of experimental d...
We present a method for measurement of human tissue compliance in vivo using a commercial haptic interface to apply known step changes in force while recording the resulting displacements. We introduce our system, the Softcometer (SOFT-tissue COmpliance METER). Our motivation was to improve the compliance realism of our Virtual Haptic Back model, but there are many potential applications for th...
A new procedure of the linear position measurement which allows to obtain sensitivity better than the Standard Quantum Limit and close to the Energetic Quantum Limit is proposed and analyzed in detail. Proposed method is based on the principles of strobo-scopic quantum measurement and variation quantum measurement and allows to avoid main disadvantages of both these procedures. This method can ...
A measurement method presented by John R. Juroshek (NIST) in conjunction with the Vector Network Analyzers R&S ZVM or R&S ZVK from Rohde & Schwarz allows fast and accurate determination of the equivalent reflection coefficient of power splitters or directional couplers. If the magnitude and phase of reflection coefficients of source (e.g. power splitter) and sink (e.g. power meter) are known, a...
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