Results 21 to 30 of about 152,483 (320)

Development of the drilling mud composition for directional wellbore drilling considering rheological parameters of the fluid

open access: yesЗаписки Горного института, 2020
Article presents investigations on the development of a drilling mud composition for directional wells in an oil field located in the Republic of Tatarstan (Russia).
Nadezhda M. Ulyasheva   +2 more
doaj   +1 more source

Ecological Life Cycle Assessment Modified Novolaks Waste Used in Industrial Wastewater Treatment [PDF]

open access: yes, 2017
Ecological Life Cycle Assessment (LCA) applied in the assessment of the impact of products on the environment is a technique that allows for the evaluation of the environmental impact of polymeric flocculants used in industrial wastewater treatment ...
Bajdur, Wioletta M.   +3 more
core   +2 more sources

THE STUDY OF PROPERTIES OF SODA PRODUCTION WASTES AS ANTI-ICING REAGENTS

open access: yesEnvironmental Problems, 2022
The article considers the possibility of reducing the man-made load on surface and ground waters in Lysychansk-Severodonetsk industrial agglomeration caused by numerous sludge collectors and tailings storage facilities of ...
Oleksandr Suvorin   +4 more
doaj   +1 more source

The effect of mechanical activation methods on the properties of local clays and waste bentonites [PDF]

open access: yesE3S Web of Conferences, 2023
One of the most important indicators of mechanical activation of clay minerals is the effect of activation time on the strength of the mixture. One of the most important parameters in the preparation of drilling fluid based on clays is their ability to ...
Usmanov Safar   +4 more
doaj   +1 more source

Influence of Polymer Reagents in the Drilling Fluids on the Efficiency of Deviated and Horizontal Wells Drilling

open access: yesEnergies, 2020
Improving the efficiency of well drilling process in a reservoir is directly related to subsequent well flow rates. Drilling of deviated and horizontal wells is often accompanied by an increase in pressure losses due to flow resistance caused by small ...
Tianle Liu   +8 more
doaj   +1 more source

PELATIHAN PRAKTIKUM KIMIA SKALA KECIL: PEMBUATAN INDIKATOR ASAM BASA BERUPA BOLA ALGINAT UNGU UNTUK GURU-GURU KIMIA DI SMA SANTA FAMILIA

open access: yesAbdimas Altruis, 2023
The practicum management of chemistry teachers at senior high school on the topic of acid-base is quite good, although the majority are monotonous in testing acid-base properties using large amounts of solution.
Johnsen Harta   +6 more
doaj   +1 more source

Research into the process of preparation of Ukrainian coal by the oil aggregation method [PDF]

open access: yes, 2017
We conducted a study into concentration of Donetsk coal with varying degrees of coalification – anthracite and grade G – by the method of oil aggregation. We determined the character of impact of the following factors on the results of oil aggregation of
Biletskyi, V. S.   +8 more
core   +2 more sources

Colorimetric isothermal nucleic acid detection of SARS-CoV-2 with dye combination

open access: yesHeliyon, 2021
RT-LAMP detection of SARS-CoV-2 has been demonstrated to be a valuable diagnostic method for the diagnosis of COVID-191,2, which can rapidly screen carriers of the virus to effectively control the spread of the SARS-CoV-2.
Shanshan Wu   +6 more
doaj   +1 more source

A comparison of enhancement techniques for footwear impressions on dark and patterned fabrics [PDF]

open access: yes, 2013
The use of chemical enhancement techniques on porous substrates, such as fabrics, poses several challenges predominantly due to the occurrence of background staining and diffusion as well as visualisation difficulties.
Bandey, Helen   +3 more
core   +3 more sources

Fluorescent Probes and Labels for Cellular Imaging

open access: yesCHIMIA, 2009
Metal-responsive fluorescent indicators are powerful tools for visualizing trace metals with subcellular resolution. By taking advantage of the diverse photophysical properties of organic fluorophores, metal ion-selective fluorescent indicators ...
Christoph J. Fahrni
doaj   +1 more source

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