Results 31 to 40 of about 5,363,306 (301)

Heat buffers improve capacity and exploitation degree of geothermal energy sources [PDF]

, 2008
This research focuses on the role of heat buffers to support optimal use of combinations of traditional and renewable heat sources like geothermal heat for greenhouse heating.
Janssen, E.G.O.N., Ooster, A., van 't, Ruigrok, J., Wit, J., de   +3 more
core   +2 more sources

Detection of Pipeline Leaks Using Fractal Analysis of Acoustic Signals

Fractal and Fractional
In 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, Shamil Ziganshin, Eugenia Izmailova, Yuri Vankov, Ilya Klyukin, Roman Alexandrov   +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, Futyma Kamil, Milewski Jarosław, Szczęśniak Arkadiusz   +3 more
doaj   +1 more source

Methods for increasing the efficiency of climate control systems for electric buses [PDF]

E3S Web of Conferences
Increasing 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, Salakhov Rishat, Hafizov Ildar, Zakirov Arslan   +3 more
doaj   +1 more source

Monitoring Pipeline Leaks Using Fractal Analysis of Acoustic Signals

Fractal and Fractional
This 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, Shamil Ziganshin, Eugenia Izmailova, Yuri Vankov, Ilya Klyukin, Roman Alexandrov   +5 more
doaj   +1 more source

COMPARATIVE ANALYSIS OF COMPLEX MECHANICAL PROPERTIES OBTAINED IN TESTS ON FINISHED BOLTS AND TURNED SAMPLES

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, A. V. Ivchenko, P. V. Kondratenko, G. I. Perchun   +3 more
doaj   +1 more source

Advancing our Understanding of Heat Wave Criteria and Associated Health Impacts to Improve Heat Wave Alerts in Developing Country Settings. [PDF]

, 2019
Health effects of heat waves with high baseline temperatures in areas such as India remain a critical research gap. In these regions, extreme temperatures may affect the underlying population's adaptive capacity; heat wave alerts should be optimized to ...
Azhar, Gulrez Shah, Bell, Michelle L, Benmarhnia, Tarik, Gupta, Prakash, Nori-Sarma, Amruta, Pednekar, Mangesh S, Rajiva, Ajit   +6 more
core   +2 more sources

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, Cieślak Ilona, Jach Agnieszka, Pyszczek Rafał, Teodorczyk Andrzej, Cao Weiyu   +5 more
doaj   +1 more source

Climate change and the kidney [PDF]

, 2019
The worldwide increase in temperature has resulted in a marked increase in heat waves (heat extremes) that carries a markedly increased risk for morbidity and mortality.
Butler-Dawson, Jaime, Diaz, Henry F., Garcia, Gabriela, Hernando, Ana Andres, Johnson, Richard J., Lanaspa, Miguel A., Lemery, Jay, Newman, Lee S., Rodriguez-Iturbe, Bernardo, Roncal-Jimenez, Carlos A., Sato, Yuka, Sánchez-Lozada, Laura G., Tolan, Dean R.   +12 more
core   +1 more source

Newton’s law of heating and the heat equation [PDF]

Involve, a Journal of Mathematics, 2009
Newton’s law of heating models the average temperature in an object by a simple ordinary differential equation, while the heat equation is a partial differential equation that models the temperature as a function of both space and time. A series solution of the heat equation, in the case of a spherical body, shows that Newton’s law gives an accurate ...
Gockenbach, Mark, Schmidtke, Kristin
openaire   +2 more sources