Results 1 to 10 of about 1,811,375 (146)

How can ultrasonic scouring of sheep’s wool chemically modify its surface? [PDF]

open access: yesUltrasonics Sonochemistry
Ultrasonic wool scouring has the potential to replace the traditional method using detergents and other additives. This study aims to investigate the effect of important parameters of an ultrasonic bath operating at 38 kHz frequency on the possible ...
Mária Porubská   +2 more
doaj   +2 more sources

Research progress in mechanisms of swelling pressures of compacted bentonite under chemical conditions

open access: yesYantu gongcheng xuebao, 2023
Chemical compositions affect the long-term stabilization of the swelling properties of bentonites, which is significant to the safety of deep geological repositories.
MA Jing , CHEN Yonggui , LIU Cong , YE Weimin , WANG Qiong
doaj   +1 more source

Experimental and Numerical Study on the Combustion Characteristics of a Laminar Non-Premixed Methane Jet Flame in Oxygen/Carbon Dioxide Coflow

open access: yesFrontiers in Energy Research, 2022
The combustion characteristics of laminar non-premixed CH4 jet flame in an O2/CO2 coflows with different oxygen mole fractions were studied experimentally. The flame heights at different oxygen concentrations and fuel jet velocity were obtained.
Fan Zhang   +7 more
doaj   +1 more source

Comparisons of the Uncoupled Effects of CO2 on the CH4/O2 Counterflow Diffusion Flame under High Pressure

open access: yesApplied Sciences, 2021
A comprehensive numerical investigation of the uncoupled chemical, thermal, and transport effects of CO2 on the temperature of CH4/O2 counterflow diffusion flame under high pressure up to 5 atm was conducted.
Ying Chen   +3 more
doaj   +1 more source

Techno-economic analysis of glycerol carbonate production by glycerolysis of crude glycerol and urea with multi-functional reactive distillation

open access: yesCase Studies in Chemical and Environmental Engineering, 2023
Waste crude glycerol from the production of biodiesel could be used as a raw material for a product with added value. The purpose of this research was to assess the technical and economic aspects of the production process for glycerol carbonate.
Jakkrapong Jitjamnong   +3 more
doaj   +1 more source

Chemical reaction, Dufour and Soret effects on the stability of magnetohydrodynamic blood flow conveying magnetic nanoparticle in presence of thermal radiation: A biomedical application

open access: yesHeliyon, 2023
Nowadays ferrofluids (magnetic nanofluids) are at the center of many researches because of their major biomedical applications such as drug delivery and cancer treatment.
Cédric Gervais Njingang Ketchate   +6 more
doaj   +1 more source

Numerical Investigation of the Chemical Effect and Inhibition Effect Improvement of C3H2F3Br (2-BTP) Using the Perfectly Stirred Reactor Model

open access: yesEnergies, 2018
The overall chemical rate and chemical effect of CF3Br, 2-BTP and 2-BTP/CO2 with hydrocarbon flames are calculated using the perfectly stirred reactor (PSR) model. The chemical effects of CF3Br with CH4/air flames always inhibit combustion.
Ping Li   +3 more
doaj   +1 more source

The Determination of M Shell Average Fluorescence Parameters From 70Yb to 92U and of Hg, Pb and Bi Compounds Using 5.96 keV Photons

open access: yesCumhuriyet Science Journal, 2018
In this study, the empirical average Mshell fluorescence yields were calculated from 70Yb to 92U.These obtained values will supply more experimental data for theoreticalestimations of atomic structure calculations and spectroscopic analysis whichis used ...
Engin Tıraşoğlu   +3 more
doaj   +1 more source

Evaluation of well water in the site Technical Agricultural College - Mosul for its validity in the growth and yield of three varieties of the cotton plant (Gossypium hirsutum L.)

open access: yesNTU Journal of Pure Sciences, 2021
Groundwater is one of the most important sources of water storage in the world, which is used as an alternative when rains are scarce and the drainage of the Tigris River is low.
Arwa M. Othman   +2 more
doaj   +1 more source

Predicting Chemical Toxicity Effects Based on Chemical-Chemical Interactions

open access: yesPLoS ONE, 2013
Toxicity is a major contributor to high attrition rates of new chemical entities in drug discoveries. In this study, an order-classifier was built to predict a series of toxic effects based on data concerning chemical-chemical interactions under the assumption that interactive compounds are more likely to share similar toxicity profiles.
Lei Chen   +5 more
openaire   +4 more sources

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