Results 11 to 20 of about 430,339 (312)

Development of analysis methods for ensuring the reliability of gas distribution systems in the problems of complex energy supply [PDF]

open access: yesE3S Web of Conferences, 2019
The paper deals with the issues devoted to reliability studies of gas distribution systems for complex energy supply of large industrialized areas. Given is a brief review of the reliability assessment methods, existing models for reliability assessment ...
Ilkevich Nikolay I.   +2 more
doaj   +1 more source

Seasonal Dynamics of Gaseous CO2 Concentrations in a Karst Cave Correspond with Aqueous Concentrations in a Stagnant Water Column

open access: yesGeosciences, 2023
Dissolved CO2 in karst water is the key driving force of karstification. Replenishment of CO2 concentrations in karst water occurs by meteoric water that percolates through the vadose zone, where CO2 produced from microbial activity is dissolved. CO2 can
Holger Class   +5 more
doaj   +1 more source

Indirect downscaling of hourly precipitation based on atmospheric circulation and temperature [PDF]

open access: yesHydrology and Earth System Sciences, 2013
The main source of information on future climate conditions are global circulation models (GCMs). While the various GCMs agree on an increase of surface temperature, the predictions for precipitation exhibit high spread among the models, especially in ...
F. Beck, A. Bárdossy
doaj   +1 more source

The sharing of flood waters in the Ksours of Ghardaia and Berriane (Algeria) hydraulic study [PDF]

open access: yes, 2019
The present article deals with two systems of sharing flood waters used in the oases of Ghardaïa and Berriane. Based on bibliographic work, and data collection and investigations performed during the period between 2006 and 2018 near the Ksourian ...
Khelifa, Ali, Remini, Boualem
core   +1 more source

PHOTOSED—PHOTOgrammetric Sediment Erosion Detection

open access: yesGeosciences, 2018
This work presents a novel high-resolution photogrammetric measuring technique (PHOTOSED) to study in detail the erosion behavior of cohesive sediments, or cohesive/non-cohesive sediment mixtures.
Markus Noack   +4 more
doaj   +1 more source

Integration and Analysis of Multi-Modal Geospatial Secondary Data to Inform Management of at-Risk Archaeological Sites

open access: yesISPRS International Journal of Geo-Information, 2021
Climate change poses an imminent physical risk to cultural heritage sites and their surrounding landscape through intensifying environmental processes such as damaging wetting and drying cycles that disrupt archaeological preservation conditions, and ...
Rebecca Guiney   +7 more
doaj   +1 more source

Justification criteria for Inter-Basin Water Transfer Projects [PDF]

open access: yesE3S Web of Conferences, 2021
When implemented on a large scale, Interbasin Water Transfer (IBWT) projects are one of the most significant human interventions in natural environmental processes.
Laassilia Oussama   +3 more
doaj   +1 more source

Investigation the stability of reservoir sediments in the lab and field

open access: yesMATEC Web of Conferences, 2018
To investigate the erosion stability of reservoir sediments, two measuring strategies were applied. Next to in situ measurements, sediment cores were extracted and analysed in the laboratory.
Noack Markus   +3 more
doaj   +1 more source

Bio-Inspired New Hydraulic Actuator Imitating the Human Muscles for Mobile Robots

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Limited load capacity is the bottleneck for the practical application of mobile multi-joint legged robots. And improving the efficiency of the drive system is a key factor in improving the load capacity.
Xiangjuan Bai   +5 more
doaj   +1 more source

Energy-efficient control of pump units based on neural-network parameter observer [PDF]

open access: yes, 2020
An observer based on an artificial neural network was designed. The observer determines the pumping unit performance depending on the operating point. Determination is based on the measured technological coordinates of the system and the pressure of the ...
Burian, S. O.   +4 more
core   +1 more source

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