Results 1 to 10 of about 20,656 (242)

Influence of Li Grease Thickener Types on Film Thicknesses Formed between Smooth and Dented Surfaces

open access: diamondTribology Online, 2017
The lubricant film thickness behaviors of lithium (Li) thickener type greases and their base oil were investigated for the contact between a glass disk and a smooth/dented steel ball using an optical interferometry. The main focus is to understand grease
Kazumi Sakai   +5 more
doaj   +3 more sources

Systematic Review of Solubility, Thickening Properties and Mechanisms of Thickener for Supercritical Carbon Dioxide [PDF]

open access: yesNanomaterials
Supercritical carbon dioxide (CO2) has extremely important applications in the extraction of unconventional oil and gas, especially in fracturing and enhanced oil recovery (EOR) technologies.
Xiaohui Wang   +3 more
doaj   +2 more sources

PEWARNAAN MENGGUNAKAN ZAT WARNA DIREK DENGAN PENGENTAL DALAM PEMBUATAN ’KAIN TRITIK

open access: yesBrikolase, 2022
This research was conducted to create a method for dyeing trick using Direct dyestuff. The developed coloring is staining using thickener but not used through printing.
ratna endah santoso   +4 more
doaj   +1 more source

Investigation of Tribological Behavior of Lubricating Greases Composed of Different Bio-Based Polymer Thickeners

open access: yesLubricants, 2021
One commonly used lubricant in rolling bearings is grease, which consists of base oil, thickener and small amounts of additives. Commercial greases are mostly produced from petrochemical base oil and thickener. Recently, the development of base oils from
Seyedmohammad Vafaei   +5 more
doaj   +1 more source

Comparative Studies on Thickeners as Hydraulic Fracturing Fluids: Suspension versus Powder

open access: yesGels, 2022
To overcome the problems of long dissolution time and high investment in surface facilities of powder thickeners in hydraulic fracturing, a novel suspension of a thickener as a fracturing fluid was prepared using powder polyacrylamide, nano-silica, and ...
Shenglong Shi   +8 more
doaj   +1 more source

Study on Factors Influencing Film Formation of Grease and Calculation Model for Grease Film Thickness

open access: yesLubricants, 2022
The grease film thickness was measured in fully flooded elastohydrodynamic lubrication, and the influence of rolling speed, load, consistency, base oil type and thickener type on grease film thickness was analyzed. A new calculation model for grease film
Zhe Zhang   +3 more
doaj   +1 more source

Mathematical relationship between the solid flux of deep cone thickener, flocculant unit consumption, and slurry concentration

open access: yes工程科学学报, 2021
Tailings thickening is an important process of paste filling technology. At present, a deep cone thickener is often used for tailings thickening. The sedimentation rate of tailings affects the solid flux of the deep cone thickener and determines the area
Yong WANG, Chen CAO, Ai-xiang WU
doaj   +1 more source

In Situ Observation of Transient Responses in Grease Lubrication by Micro Infrared Spectroscopy

open access: yesTribology Online, 2020
In situ observation of lubricant films formed with greases was carried out at EHL conditions with a micro-FTIR. Three urea compounds were used as a thickener and 12 mass percent of the thickener was added in PAO, respectively. From the IR spectra, CH and
Yasushi Hoshi   +3 more
doaj   +1 more source

Characterization of Dysphagia Thickeners Using Texture Analysis—What Information Can Be Useful?

open access: yesGels, 2022
Besides shear viscosity, other texture parameters (adhesiveness or cohesiveness) might be relevant for safe swallowing in people suffering from oropharyngeal dysphagia.
Raquel Baixauli   +5 more
doaj   +1 more source

Production of paste from fine tailings streams in a laboratory scale column thickener

open access: yesREM: International Engineering Journal, 2021
The final disposal of tailings in the form of paste is a technological alternative. The objective of the present study is to obtain knowledge and compare different operational conditions that are favorable to the production of paste with the fine ...
Rubén Heriberto Olcay Barreda   +2 more
doaj   +1 more source

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