Results 31 to 40 of about 1,079,684 (305)
Synthesis of MA-SAS-HEMA terpolymers and their scale inhibition properties
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]
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]
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]
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
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]
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
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
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]
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
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

