Results 21 to 30 of about 10,149,286 (408)

Methodology for assessing technological efficiency and safety at the enterprise for production of reinforced concrete structures [PDF]

open access: yesE3S Web of Conferences, 2020
This paper considers the main results of instrumental analysis of technological efficiency and safety, and suggestions for improving the working conditions of workers engaged in steaming of reinforced concrete products in steam curing chambers operating ...
Sinitsyn Anton   +3 more
doaj   +1 more source

Water Supply and Health

open access: yesPLoS Medicine, 2010
As one article in a four-part PLoS Medicine series on water and sanitation, Paul Hunter and colleagues argue that much more effort is needed to improve access to safe and sustainable water supplies.
Hunter, Paul R.   +2 more
openaire   +5 more sources

Development of a New Burner Device Based on Injection-Radiation Method for Gas Fuel Combustion [PDF]

open access: yesE3S Web of Conferences, 2020
This paper presents the results of designing a promising burner device that combines injection and radiation methods for gaseous fuel combustion. Infrared radiation from the heated surface of nozzle of radiation burner provides intensive heat transfer in
Sinitsyn A. A.   +3 more
doaj   +1 more source

Deformation and Stability Analysis of a Core Rockfill Dam with Leakage

open access: yesShock and Vibration, 2022
The No. 4 clay core rockfill dam of the Gongming Reservoir experienced leakages when the reservoir water level was low. To analyze the leakage causes, a series of seepage tests were conducted on the dam materials in this paper.
Yuanzhong Chen, Guobing Lin, Yangyang Lu
doaj   +1 more source

Electro-Conductive Composite Gold-Polyethersulfone-Ultrafiltration-Membrane: Characterization of Membrane and Natural Organic Matter (NOM) Filtration Performance at Different In-Situ Applied Surface Potentials

open access: yesMembranes, 2018
Next to the pore size distribution, surface charge is considered to be one main factor in the separation performance of ultrafiltration (UF) membranes.
Tomi Mantel   +3 more
doaj   +1 more source

Analysis of Water Losses and Assessment of Initiatives Aimed at Their Reduction in Selected Water Supply Systems

open access: yesWater, 2019
This paper presents the analysis and assessment of water losses in water distribution systems of three water supply companies operating water supply networks in the area of effect of underground mining. The analysis of water losses was conducted based on
E. Ociepa, M. Mrowiec, I. Deska
semanticscholar   +1 more source

Seasonal and Annual Rainfall Variability and Their Impact on Rural Water Supply Services in the Wami River Basin, Tanzania

open access: yesWater, 2019
In some parts of Africa, rainfall variability has resulted in widespread droughts and floods, thus posing a substantial challenge to water availability in rural areas, especially drinking water.
Sekela Twisa, M. Buchroithner
semanticscholar   +1 more source

Multi-Component Remote Sensing for Mapping Buried Water Pipelines

open access: yesRemote Sensing
Accurate localization of buried water pipelines in rural areas is crucial for maintenance and leak management but is often hindered by outdated maps and the limitations of traditional geophysical methods.
John Lioumbas   +8 more
doaj   +1 more source

Insecure Security: Emergency Water Supply and Minimum Standards in Countries with a High Supply Reliability

open access: yesWater, 2019
Drinking water supply is at the core of both, humanitarian action in times of crisis, as well as national policies for regular and emergency supply. In countries with a continuous water supply, the population mostly relies ingenuously on the permanent ...
L. Bross   +5 more
semanticscholar   +1 more source

A New Multi-Criteria Decision Analysis Methodology for the Selection of New Water Supply Infrastructure

open access: yesWater, 2019
Reliable and safe access to drinking water is necessary to ensure the economic and social sustainable development of human communities. This task requires a multi-criteria decision analysis (MCDA) methodology to select alternatives for new water supply ...
Henry Amorocho-Daza   +3 more
semanticscholar   +1 more source

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