Results 1 to 10 of about 2,215,063 (343)

WATER QUALITY ASSESSMENT FOR DRINKING AND SANITATION PURPOSES IN SECONDARY SCHOOLS IN PORT HARCOURT METROPOLIS, RIVERS STATE, NIGERIA [PDF]

open access: yesJournal CleanWAS, 2022
Water quality assessment research will go on despite the numerous research previously carried out because water quality is not constant and as exploration activities are being carried out around the world, the quality of water depreciates.
Effiong, E.E.   +3 more
doaj   +1 more source

Modeling using experimental design method of the physicochemical parameters of the water quality in Meknes city, Morocco [PDF]

open access: yesE3S Web of Conferences, 2020
This study was focused on the characterization of physicochemical parameters of drinking water, which are mainly involved during water treatment or analysis processes.
Bouazza Ghariba   +3 more
doaj   +1 more source

Preparation, dielectric and conductivity studies of LiNi1-xMgxO2 cathode materials for lithium-ion batteries [PDF]

open access: yesProcessing and Application of Ceramics, 2017
A layered structure cathode materials LiNi1-xMgxO2 (where x = 0.0 and 0.02) were prepared by solid state reaction from Li2CO3, MgO and NiO. The thermal analysis of the precursor materials up to 750 °C showed the weight loss of about 30%.
Nandigam Murali, Valaparla Veeraiah
doaj   +1 more source

La3+ substitution impact on structural, magnetic, and electrical properties of CoFe2O4 synthesized via sucrose auto-combustion

open access: yesMaterials Research Express, 2023
Lanthanum (La)-substituted cobalt ferrites CoFe _2- _x La _x O _4 ( x = 0.00–0.09) were successfully prepared using the sucrose sol-gel auto-combustion route.
A A Al-Juaid
doaj   +1 more source

Effect of La and Mo co-doping on the properties of AgSnO2 contact material

open access: yesMaterials Research Express, 2021
For the shortage of the AgSnO _2 contact material, the models of SnO _2 , La–SnO _2 , Mo–SnO _2 , and La–Mo–SnO _2 were built to calculate their electrical and mechanical properties based on the first principles of density functional theory in this study.
Jingqin Wang   +4 more
doaj   +1 more source

TESTS OF pH, CONDUCTIVITY, TOTAL DISSOLVED SOLIDS, SALINITY AND TURBIDITY IN THE BATANG ARAU RIVER SURROUNDING, PADANG CITY-WEST SUMATRA

open access: yesBioLink, 2023
Humans need fresh water for many functions, including cleaning, irrigating plants, drinking, cooking, industrial uses, and more. It cannot be denied that the excessive exploitation of the environment by humans is the cause of the current decline in water
Rusli HAR   +4 more
doaj   +1 more source

Influence factors of unpropped fracture conductivity of shale

open access: yesEnergy Science & Engineering, 2020
Hydraulic fracture is widely performed to enhance oil and gas production in the development of unconventional reservoirs. This paper proposes a numerical model for the calculation of the unpropped fracture conductivity of shale.
Cong Lu   +5 more
doaj   +1 more source

Preparation and properties of conductive anticorrosive coatings using Eucommia Ulmoides gum/carbon nanotube modified epoxy

open access: yesHecheng xiangjiao gongye, 2022
Conductive anticorrosive coatings were prepared by using Eucommia Ulmoides gum(EUG)and epoxy resin (E-51) as matrix and carbon nanotubes (CNT) as conductive filler.
ZHANG Yan; KANG Hai-lan; FANG Qing-hong
doaj   +1 more source

Densest-Packed Columnar Structures of Hard Spheres: An Investigation of the Structural Dependence of Electrical Conductivity

open access: yesFrontiers in Physics, 2021
Identical hard spheres in cylindrical confinement exhibit a rich variety of densest-packed columnar structures. Such structures, which generally vary with the corresponding cylinder-to-sphere diameter ratio D, serve as structural models for a variety of ...
Panpan Ma, Ho-Kei Chan
doaj   +1 more source

Development of Pressure-Responsive PolyPropylene and Biochar-Based Materials

open access: yesMicromachines, 2020
In this research paper, we reported the synthesis of biochar-based composites using biochar derived from exhausted tea leaves and polypropylene. The resulting materials were deeply characterized investigating mechanical (dynamic mechanical thermal ...
Amir Noori   +5 more
doaj   +1 more source

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