Results 31 to 40 of about 17,107,897 (345)

The impact of inlet flash evaporation conditions on erosion damage characteristics of coal gasification black water angle valve and prevention strategies

open access: yesMechanics & Industry, 2020
In view of the three-stage flash evaporation system of the coal gasification plant, a combination of theoretical analysis and numerical simulation was used to establish the erosion damage evaluation model in the black water angle valve.
Xu Yan   +4 more
semanticscholar   +1 more source

Machine learning techniques in estimation of eggplant crop evapotranspiration

open access: yesApplied Water Science, 2023
This study predicted the daily evapotranspiration of eggplant (Solanum melongena L.) under full and deficit irrigation in the Bafra district of Samsun province, Turkey, using machine learning methods.
Bilal Cemek   +4 more
doaj   +1 more source

Contribuição à hidroquímica de drenagens no Município de Manaus - AM Contribution to the hydrochemistry of drainages in the municipality of Manaus-AM

open access: yesActa Amazonica, 2005
O rio Puraquequara, e seu afluente direito, o igarapé Água Branca, localizam-se fora da zona urbana de Manaus e estão com a bacia ainda protegida por floresta primária.
Adriana Maria Coimbra Horbe   +3 more
doaj   +1 more source

Future rice farming threatened by drought in the Lower Mekong Basin

open access: yesScientific Reports, 2021
The Lower Mekong River basin (LMB) has experienced droughts in recent decades, causing detrimental economic losses and food security conundrums. This study quantified the impact of climate change on drought, and rainfed rice production in the LMB.
Hyunwoo Kang   +3 more
doaj   +1 more source

Applying a Hand-Held Laser Scanner to Monitoring Gully Erosion: Workflow and Evaluation

open access: yesRemote Sensing, 2021
Detailed understanding of gully erosion processes is essential for monitoring gully remediation and requires fine-scale monitoring. Hand-held laser scanning systems (HLS) enable rapid ground-based data acquisition at centimeter precision and ranges of 10–
Anne Kinsey-Henderson   +4 more
doaj   +1 more source

Numerical Study of Erosion Wear Characteristics in a High-pressure Black Water Angle Valve by Using CFD-VOF-DPM Method

open access: yesJournal of Applied Fluid Mechanics
High-pressure black water angle valves are essential equipment of black water flash treatment systems in the coal gasification process, and they usually suffer from a high risk of erosion wear failure.
H. Jin   +5 more
semanticscholar   +1 more source

Evaluation of an anaerobic baffled reactor for pretreating black water: Potential application in rural China.

open access: yesJournal of Environmental Management, 2019
Black water is highly concentrated human waste water but represents only a minor portion of domestic sewage. A modified type of anaerobic baffled reactor (ABR) was studied to assess its potential for pretreating black water in rural China.
X. Zha   +3 more
semanticscholar   +1 more source

Water Masses of the Mediterranean Sea and Black Sea: An Overview

open access: yesWater, 2023
This overview presents the different water masses present in the various primary and secondary marine regions of the Mediterranean Sea and Black Sea, providing information on their main physical characteristics (i.e., temperature, salinity, density), the
S. Poulos
semanticscholar   +1 more source

Actinella species (Bacillariophyta) from an Amazon black water floodplain lake (Amazonas - Brazil) Espécies de Actinella (Bacillariophyta) de um lago de inundação amazônico de águas pretas (Amazonas - Brasil)

open access: yesActa Amazonica, 2010
The genus Actinella Lewis was studied using planktonic samples from a black water floodplain lake in Central Amazon region. For species identification the taxa were morphological and morphometricaly analyzed on base in light microscope (LM) and scanning ...
Sérgio Melo   +2 more
doaj   +1 more source

Feasibility of closing nutrient cycles from black water by microalgae-based technology

open access: yes, 2019
Microalgae can recover macronutrients and trace elements from wastewaters. The microalgae biomass can then be used as fertilizer to enrich impoverished agricultural soils by increasing the soil´s carbon content and providing essential nutrients for soil ...
G. S. Silva   +5 more
semanticscholar   +1 more source

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