Many factors influence the quality of turbine meter flow measurement. Recognizing these factors allows a user to optimize the flow measurement performance of a turbine metering system. In order to ensure that turbine meters in the field are operating at their best, turbine metering stations must be properly designed, calibrated, installed, and maintained on a regular basis. This paper explains ...

We use several variants of the detrended fluctuation analysis to study the appearance of long-term persistence in temperature records, obtained at 95 stations all over the globe. Our results basically confirm earlier studies. We find that the persistence, characterized by the correlation C(s) of temperature variations separated by s days, decays for large s as a power law, C(s) approximately s(...

At the Calibration Laboratory of IPEN/CNEN-SP (LCI) several radiation qualities were established, and they are in use for the calibration of radiation detectors for clinical and industrial uses. In order to follow international recommendations, a new quantity has been established at the LCI, the practical peak voltage (PPV). In this work, an analysis of this quantity was made for the computed t...

This paper presents a study in the framework of the ISHT – Interior sound design of high-speed trains project. During a train journey between the cities of Stockholm and Gävle, Sweden, 9 travellers participated in a listening experiment to evaluate the use of sonification to convey nonspeech based information about the travel. We tested sonification for communicating the distance between two st...

Solar surface irradiance is an important variable in many different fields, e.g., climate monitoring and solar energy. Remote sensing data are nowadays well established and the only observational data source in many regions of the world. Aerosols significantly affect the clear sky radiation and hence also the all sky radiation. In order to achieve the optimal accuracy for surface radiation, inf...

BACKGROUND Evidence about a possible causal relationship between non-specific physical symptoms (NSPS) and exposure to electromagnetic fields (EMF) emitted by sources such as mobile phone base stations (BS) and powerlines is insufficient. So far little epidemiological research has been published on the contribution of psychological components to the occurrence of EMF-related NSPS. The prior obj...