Results 31 to 40 of about 6,062,734 (352)
Detection of Pipeline Leaks Using Fractal Analysis of Acoustic Signals
Fractal and FractionalIn this paper, the possibility of using monofractal and multifractal analysis of acoustic signals of pipelines to detect leaks is considered. An experimental stand has been created to study the fractal characteristics of acoustic signals of pipelines ...
Ayrat Zagretdinov +5 more
doaj +1 more source
A model of the novel concept liquid piston engine sourced by waste heat
MATEC Web of Conferences, 2018 This paper describes the model of the novel concept liquid piston engine, which is designed to convert low-grade waste heat into electricity. The proposed dynamic oriented model is implemented in Aspen Hysys that enables simulations dynamic simulation of
Bujalski Wojciech +3 more
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Methods for increasing the efficiency of climate control systems for electric buses [PDF]
E3S Web of ConferencesIncreasing the range of an electric bus on a single battery charge is an important task facing electric bus developers. The auxiliary system that consumes the largest amount of electricity is the air conditioning system.
Ermakov Andrey +3 more
doaj +1 more source
Numerical resolution of an exact heat conduction model with a delay term [PDF]
, 2019 In this paper we analyze, from the numerical point of view, a dynamic thermoelastic problem. Here, the so-called exact heat conduction model with a delay term is used to obtain the heat evolution.
Campo, Marco +2 more
core +2 more sources
Monitoring Pipeline Leaks Using Fractal Analysis of Acoustic Signals
Fractal and FractionalThis paper proposes a method for searching for pipeline leaks by analyzing the Hurst exponent of acoustic signals. The investigations conducted on the laboratory setup and the current pipelines of the water supply system.
Ayrat Zagretdinov +5 more
doaj +1 more source
Nauka ta progres transportu, 2015 Purpose. The purpose of the work is provided by the system experimental study of the effect of strengthening the level of the ratio of complex mechanical properties of the finished bolts and peeled samples and analysis of the data on the basis of ...
Y. P. Gul +3 more
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Improvement of energy efficiency of natural gas combustion by applying a homogeneous combustion
E3S Web of Conferences, 2017 In many heat devices designers and operators meet the problem of low efficiency of combustion and restricted emission standards. This process should be improved to maximize its efficiency and satisfy additional requirements as, for example, uniform ...
Szymczyk Jacek +5 more
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“Perversity, Futility, Jeopardy”: An Economic Analysis of the Attack on Gun Control [PDF]
, 1996 A relatively new way for utilizing the thermal performance of heat pipes is to use nanofluids as working fluids in the heat pipes. Heat pipes are effective heat transfer devices in which the nanofluid operates in the two phases, evaporation and ...
Cook, Philip J., Leitzel, James A.
core +2 more sources
Vortex rope patterns at different load of hydro turbine model
MATEC Web of Conferences, 2017 Operation of hydraulic turbines beyond optimal conditions leads to formation of precessing vortex core in a draft tube that generates powerful pressure pulsations in a hydraulic system.
Skripkin Sergey +3 more
doaj +1 more source
Energies, 2018 This paper reports the overall thermal performance of a cylindrical parabolic concentrating solar water heater (CPCSWH) with inserting nail type twisted tape (NTT) in the copper absorber tube for the nail twist pitch ratios, 4.787, 6.914 and 9.042 ...
Amit K. Bhakta +2 more
doaj +1 more source