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60.760  Articles
1 of 6.076 pages  |  10  records  |  more records»
In the present study, experimental research was carried out to determine the effect of the processing tool wear on the mutual change in the average statistical amplitude parameters of acoustic emission signals. Acoustic emission signals were recorded when... see more

The experimental regularity of acoustic emission amplitude parameters change at ascending of composite material machining speed is reviewed. Is determined, that ascending of acoustic emission signal amplitude average level and its standard deviations are ... see more

The complexity of the electric power network causes a lot of distortion, such as a decrease in power quality (PQ) in the form of voltage variations, harmonics, and frequency fluctuations. Monitoring the distortion source is important to ensure the availab... see more

The results of acoustic emission signals experimental researches at composite material machiningare reviewed. It is shown, that the registered acoustic emission signal is a continuous signal withthe hardly bluffly form. The statistical acoustic emission a... see more

Introduction: Ocular Pulse Amplitude (OPA) is the fluctuation of IOP with the cardiac cycle which is equal to the difference between systolic and diastolic IOP. These variations in IOP are thought to be caused by the blood volume that is pumped into the e... see more

INTRODUCTION: Although strict selection criteria are used to select patients for cardiac resynchronisation therapy, up to 30% of patients do not have a positive clinical response.PATIENTS: A total of 102 consecutive patients who had biventricular pacemake... see more

The questions of design maintenance of a given fatigue longevity of rods of complex form during the intensification of load modes without changing of geometric, inertial and rigidity parameters of roads are considered. The study is conducted on the exampl... see more

The results of experimental studies of acoustic radiation energy during processing tool wear are considered. The regularities of acoustic emission signal statistical energy parameters changes at normal and catastrophic processing tool wear are determined.... see more

A radiação solar global (Rs) é um parâmetro de entrada necessária para estimativa da evapotranspiração e em modelos de crescimento, desenvolvimento e simulação do rendimento das culturas. Em locais com ausência de dados de Rs, podem ser utilizados métodos... see more

1 of 6.076 pages  |  10  records  |  more records»