Results 11 to 20 of about 672,837 (245)

Ultraviolet absorption of contaminants in water

open access: yesScientific Reports, 2021
Contaminants in water were studied using ultraviolet absorption with light emitting diode and deuterium lamp sources, and a thresholding detector. The absorption spectra of potassium hydrogen pthalate, clothianidin, tryptophan, thiamethoxam, uric acid ...
Martin Spangenberg   +5 more
doaj   +1 more source

Capillary Water Absorption Characteristics of Recycled Concrete in Freeze-Thaw Environment

open access: yesAdvances in Materials Science and Engineering, 2020
In order to study the capillary water absorption characteristics of recycled concrete (RAC) with different replacement rates of recycled coarse aggregate (0, 20%, 40%, and 60%) in freeze-thaw environment, the standard test method of measuring the water ...
Qianhui Xiao   +3 more
doaj   +1 more source

FACTORS WATER CHARACTERISTIC AS PREDICTING DIARRHEA UNDER 5 YEARS

open access: yesJurnal Riset Kesehatan, 2021
Risk Factors diarrhea deaths associated to unsafe water and inadequate sanitation. Water supply is very important to decrease of diarrhea disease. Living around canal is a one of risk diarrhea incident.
Nugroho Susanto
doaj   +1 more source

Ozone absorption in raw waters [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2008
The ozone absorption in raw water entering the main ozonization step at the Belgrade drinking water supply plant was investigated in a continuous stirred tank reactor (CSTR). A slow chemical reaction rate of dissolved ozone and pollutants present in raw water have been experimentally determined. The modified Hatta number was defined and calculated as a
Ljiljana Takic   +2 more
openaire   +2 more sources

Study on Moisture Absorption and Water Absorption of PMMA Wood-plastic Composites Based on TD-NMR

open access: yesChinese Journal of Magnetic Resonance, 2023
In this study, time-domain nuclear magnetic resonance (TD-NMR) technology was employed to explore the moisture state and spin-spin relaxation (T2) characteristics of polymethyl methacrylate (PMMA) wood-plastic composites during the moisture absorption ...
ZHAO Wanlei   +3 more
doaj   +1 more source

Hot water lower limit temperature characteristics of hot water fired absorption chiller using multi-stage absorption

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The design limits of a hot water fired absorption chiller in a cycle simulation were examined. The authors have already proposed how to determine the lowest limiting value of the smaller of the two temperature differences to get a logarithmic mean ...
Shuji ESAKI   +3 more
doaj   +1 more source

Water Absorption Capacity of Irind Mine Pumice

open access: yesJournal of Architectural and Engineering Research, 2021
Water absorption capacity  of   Irind  mine pumice depending on the particle size and absorption time is presented in the  paper.  Irind pumice  is an aluminosilicate rock, with well-developed porosity, mechanical strength, high buoyancy, chemically ...
Marine Ashot Kalantaryan   +1 more
doaj   +1 more source

Analisis Kapilaritas Air pada Kain

open access: yesJurnal Fisika, 2019
Kajian mengenai kapilaritas serapan air pada kain merupakan hal yang sifatnya sederhana namun penting dilakukan untuk memberikan informasi kepada masyarakat mengenai karakteristik kain serta demi berkembangnya penelitian mengenai daya serap berbagai ...
Septia Ardiani   +2 more
doaj   +1 more source

Study on micromechanism of water absorption and its softening effect on shale rock in deep coal measures

open access: yes矿业科学学报, 2019
Water absorption experiments under different water pressures were carried out on a series of shale samples collected from Shenyang of Liaoning province using a self-developed hydrophilic experimental system.At the same time,X-ray diffraction,high ...
Zhang Na   +4 more
doaj   +1 more source

Study on capillary water absorption properties of polypropylene fibre coal gangue ceramsite concrete under freeze-thaw damage

open access: yesThe Journal of Engineering, 2019
In order to probe the effects of freeze-thaw damage and polypropylene (PP) fibres on the capillary water absorption of coal gangue ceramsite concrete (CGCC), the freeze-thaw cycle test and capillary water absorption test were carried out to study the ...
Jisheng Qiu   +4 more
doaj   +1 more source

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