Results 111 to 120 of about 1,391,739 (293)

Experimental study on the influence of asphaltenes with small dosage on the rheological and gelation behavior of waxy mixtures

Journal of Pipeline Science and Engineering
Asphaltene, the heaviest and most polar non-hydrocarbon component in crude oil, may interact with waxes and affect the flow and gelation behavior of waxy oils. To further study the effect of asphaltene on the flow and gelation behavior of waxy oils, five
Yun Lei, Shuangshuang Li, Haoran Zhu, Dehua Lai, Shaoliang Zeng, Haoping Peng, Qianqian Shao, Pengfei Yu   +7 more
doaj   +1 more source

NUMERICAL STUDY TO PREDICT PROPERTIES OF WAXY CRUDE OIL UNDER DYNAMIC COOLING

Platform, a Journal of Engineering, 2021
In this paper, a parametric study was conducted via ANSYS-Fluent workbench to predict the properties of waxy crude oil subjected to dynamic cooling. Different case studies were conducted to validate the numerical study, and prediction of temperature for ...
Goh K Hwa, Girma Tadesse Chala
doaj  

RHEOLOGY OF WAXY CRUDE OILS [PDF]

, 2021
openaire   +1 more source

Rheological Study of Light Waxy Crude Oil [PDF]

, 2015
The study of rheological of light waxy crude oil is very important in understanding the flow and performance of the oil from the reservoir to the surface.
Mazenan, Mohamad Nizar
core  

Organic Matter Quality and Microbial Activity in Soils Managed With Brachiaria Succession

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Although succession systems and brachiaria improve soil quality, gaps remain in microbial community dynamics, activity, and soil organic matter stocks. Methods The objective was to evaluate the carbon (C) and nitrogen (N) stocks of soil organic matter fractions and their distribution, molecular characterization, enzyme activity ...
Siro Paulo Moreira, Vanessa Maria de Souza Barros, David Gabriel Campos Pereira, Humberto Josué de Oliveira Ramos, Eric Batista Ferreira, Teogenes Senna de Oliveira   +5 more
wiley   +1 more source

Time-varying Predictability in Crude Oil Markets: The Case of GCC Countries [PDF]

This paper uses a time-varying parameter model with generalized autoregressive conditional heteros-cedasticity effects to examine the dynamic behavior of crude-oil prices for the period 1997-2008.
Thanh Huong Dinh, Mohamed El Hedi Arouri, Duc Khuong Nguyen   +2 more
core  

Gymnema sylvestre: Bioactive constituents, health benefits, and emerging applications in nutraceuticals and functional foods

JSFA reports, EarlyView.
Abstract Gymnema sylvestre (Retz.) R.Br. ex‐Schult., commonly known as “gurmar” or “sugar destroyer,” belongs to the Apocynaceae family and is traditionally used in Ayurveda for diabetes management. This review synthesizes ethnomedicinal evidence with contemporary pharmacological studies, to evaluate the therapeutic properties and mechanistic actions ...
Faiza Saeed, Muhammad Tauseef Sultan, Hassan Raza, Ahmad Mujtaba Noman, Nimra Haroon, Entessar Mohammad Al Jbawi   +5 more
wiley   +1 more source

Opium trade and use during the Late Bronze Age: Organic residue analysis of ceramic vessels from the burials of Tel Yehud, Israel

Archaeometry, EarlyView., 2022
Abstract Organic residue analysis was conducted on various vessels from burials at Tel Yehud, Israel. The analyses led to new reliable evidence for the presence of opioid alkaloids and their decomposition products. This research revitalizes a decades‐old discussion on the presence and function of the opium trade across a cultural region of utmost ...
Vanessa Linares, Eriola Jakoel, Ron Be’eri, Oded Lipschits, Ronny Neumann, Yuval Gadot   +5 more
wiley   +1 more source

Assessing the impact of U.S. ethanol market shocks on global crude oil and U.S. gasoline: A structural VAR approach [PDF]

Structural VAR, ethanol, crude oil, gasoline, shocks, Agricultural and Food Policy, Environmental Economics and Policy, Q1, Q2, Q4,
McPhail, Lihong Lu
core  

Breaking polyphenol–polysaccharide interactions: the promising role of natural deep eutectic solvents

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Food processing generates substantial amounts of byproducts rich in valuable bioactive compounds, particularly polyphenols, known for their antioxidant, anti‐UV, and antimicrobial properties. These molecules hold great potential in sectors such as food, cosmetics, and pharmaceuticals.
Paul Sauvetes, Nathalie Gontard, Chahinez Aouf   +2 more
wiley   +1 more source