Results 31 to 40 of about 1,079,684 (305)

Synthesis of MA-SAS-HEMA terpolymers and their scale inhibition properties

open access: yesXi'an Gongcheng Daxue xuebao, 2023
In order to solve the problem of water pollution caused by traditional phosphorus-containing scale inhibitors, a phosphorus-free MA-SAS-HEMA copolymer scale inhibitor was prepared by aqueous solution free radical polymerization using maleic anhydride (MA)
YU Rong   +4 more
doaj   +1 more source

Dissecting the dynamics of signaling events in the BMP, WNT, and NODAL cascade during self-organized fate patterning in human gastruloids. [PDF]

open access: yes, 2019
During gastrulation, the pluripotent epiblast self-organizes into the 3 germ layers-endoderm, mesoderm and ectoderm, which eventually form the entire embryo.
Chhabra, Sapna   +4 more
core   +1 more source

Significance of KRAS/PAK1/Crk pathway in non-small cell lung cancer oncogenesis. [PDF]

open access: yes, 2015
BackgroundKey effector(s) of mutated KRAS in lung cancer progression and metastasis are unknown. Here we investigated the role of PAK1/Crk axis in transduction of the oncogenic KRAS signal in non-small cell lung cancer (NSCLC).MethodsWe used NSCLC ...
Aljilani, Amir   +7 more
core   +2 more sources

Reaction diffusion processes on random and scale-free networks [PDF]

open access: yes, 2004
We study the discrete Gierer-Meinhardt model of reaction-diffusion on three different types of networks: regular, random and scale-free. The model dynamics lead to the formation of stationary Turing patterns in the steady state in certain parameter ...
De Wit A.   +4 more
core   +2 more sources

Review of Synthesis and Evaluation of Inhibitor Nanomaterials for Oilfield Mineral Scale Control

open access: yesFrontiers in Chemistry, 2020
Oilfield flow assurance is the subject to study the impact on the flow of production fluids due to physicochemical changes in the production system. Mineral scale deposition is among the top 3 water-related flow assurance challenges in petroleum industry,
Ping Zhang
doaj   +1 more source

An In-depth Study of Calcium Carbonate Scale Formation and Inhibition [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2014
A fundamental study of scale formation of calcium carbonate (CaCO3) for producing oil wells has been carried out. This article presents the study of the prediction of salt deposition in two different synthetic formation waters and investigates the ...
Azizollah Khormali   +2 more
doaj   +1 more source

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

open access: yesPetroleum Science, 2019
Inorganic scale deposits are a major water-related problem encountered in producing oil and gas wells. The harshness of scale deposits is dependent on the field operating conditions. Scale deposits can vary from mild scaling tendencies to extreme.
Musa Mpelwa, Shan-Fa Tang
doaj   +1 more source

Theoretical and Experimental Antiscaling Performance Study of Several Inhibitors to Prevent Barium Sulfate Formation during Water Injection in Oil Reservoirs

open access: yesGeofluids, 2023
One of the hazards from mineral precipitation during oilfield production is scaling, which mainly manifests in the following three aspects: it leads to reduction in permeability, in deliverability, and in water intake capacity of reservoir; the flowing ...
Haitao Li, Ran Li
doaj   +1 more source

The Origin And Loss Of Periodic Patterning In The Turtle Shell [PDF]

open access: yes, 2014
The origin of the turtle shell over 200 million years ago greatly modified the amniote body plan, and the morphological plasticity of the shell has promoted the adaptive radiation of turtles. The shell, comprising a dorsal carapace and a ventral plastron,
Cebra-Thomas, J. A.   +9 more
core   +2 more sources

Study on Scale and Corrosion Inhibition Performance of Ethane-1,2-diaminium O,O'-dicyclohexyldithiophosphate

open access: yesInternational Journal of Electrochemical Science, 2020
Ethane-1,2-diaminium O,O′-dicyclohexyldithiophosphate (Et-DDD) as novel corrosion and scale inhibitor was successfully synthesized by cyclohexanol (C6H11OH) reaction with phosphorus pentasulfide (P2S5) and ethylenediamine (H2NCH2CH2NH2) in toluene (PhCH3)
Chuan Lai   +5 more
doaj   +1 more source

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