758 Result(s)
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English
Industrial Chemistry/Chemical Engineering
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Article
H2O2 decomposition on X12Y12 (X = B, Al, Ga and Y = N, P) nanocage catalysts: a density functional theory study
The decomposition mechanism of H2O2 on X12Y12 (X = B, Al, Ga and Y = N, P) nanocages is studied by density functional theory (DFT) calculations. Generally, the decomposition of H2O2 proceeds through a direct dehy...
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Article
Designing an End Effector and a Thickness Adaptive Compression Molding Process for Wet Fiber Placement
Wet Fiber Placement (WFP) is a manufacturing technology for continuous fiber-reinforced composites. It serves as an alternative to Automated Fiber/Tape Placement processes, offering cost-effective machinery an...
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Article
MoVN-coated MoNi4-MoO2 nanorods as a bifunctional electrode for electrochemical water splitting
MoVN/MoNi4-MoO2 nanorods are synthesized using a two-step fabrication process consisting of the hydrothermal method and DC(V) and RF(Mo) magnetron co-sputtering technique. The resulting electrode exhibits a high ...
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Article
Clogging reduction by addition of small particles of various material densities
We present an experimental investigation on the flow and clogging of bi-disperse mixtures of coarse and fine grains of different densities passing through small orifices. We vary the density ratio (coarse/fine...
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Article
Open AccessOpen-hole extension limit of offshore extended-reach well considering formation collapse
The current extension limit prediction model for offshore extended-reach well (ERW) in mudstone does not consider the formation collapse, which poses a huge risk to offshore drilling construction. To address t...
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Article
Effect of Differences in Anchoring Sites on the Hydrogenation Performance of Diethyl Oxalate in Cu–Al Catalyzed Systems
Aiming to optimize the product distribution of the Cu–Al catalytic system in the oxalate hydrogenation reaction as a way to optimize and improve the product structure of the coal-to-ethylene glycol process (Co...
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Article
Chemical profile and antithrombotic activity of the essential oil of Levisticum officinale W.D.J.Koch (Apiaceae)
Cardiovascular diseases generate high costs for public health systems, making it necessary to develop/discover anticoagulant or antiplatelet agents. In this context, the present study investigated the antithro...
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Article
Gas film/regenerative composite cooling characteristics of the liquid oxygen/liquid methane (LOX/LCH4) rocket engine
The thermal protection of rocket engines is a crucial aspect of rocket engine design. In this paper, the gas film/regenerative composite cooling of the liquid oxygen/liquid methane (LOX/LCH4) rocket engine thr...
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Article
Open AccessEfficient Hydrogen Evolution from Dimethylamine Borane, Ammonia Borane and Sodium Borohydride Catalyzed by Ruthenium and Platinum Nanoparticles Stabilized by an Amine Modified Polymer Immobilized Ionic Liquid: a Comparative Study
Platinum and ruthenium nanoparticles stabilised by an amine modified polymer immobilised ionic liquid (MNP@NH2-PEGPIILS, M = Pt, Ru) catalyse the hydrolytic liberation of hydrogen from dimethylamine borane (DMAB)...
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Article
Damage Recognition of Acoustic Emission and Micro-CT Characterization of Bi-adhesive Repaired Composites Based on the Machine Learning Method
Bi-adhesive repair method is one of several repair technologies that use the adhesive bonding approach for patch-repaired composites. However, these repairs are subject to matrix-cracking and interface debondi...
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Article
Open AccessInfluence of the Textile Reinforcement on the Joint Formation of Pin-Joined Composite/Metal Parts
Hybrid components consisting of continuous fiber reinforced thermoplastic (CFRT) and steel components exhibit promising potential in advanced lightweight construction. However, the joining operation presents a...
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Article
Open AccessRelative permeability estimation using mercury injection capillary pressure measurements based on deep learning approaches
Relative permeability (RP) curves which provide fundamental insights into porous media flow behavior serve as critical parameters in reservoir engineering and numerical simulation studies. However, obtaining a...
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Article
An Effective Approach for the Preparation of High Performance Thermal Conductive Polymer Composites Containing Liquid Metal
The preparation of high-performance thermal conductive composites containing liquid metals (LM) has attracted significant attention. However, the stable dispersion of LM within polymer solution and effective p...
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Article
Open AccessDurability of photocatalytic ZnO-based surface coatings and preservation of their antibacterial effect after simulated wear
This study focused on antibacterial durability testing of surface coatings based on acrylic matrix-embedded UVA-activated ZnO. Such coatings on stainless steel were treated by dry rubbing, wet rubbing, and abr...
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Article
Performance and optimization of diclofenac and ibuprofen adsorption onto activated carbon synthesized from sunflower seed shell (Helianthus annuus) in natural groundwater samples
In this study, activated carbon (AC) obtained from biomass waste materials (sunflower seed shells -SSS) was synthesized by combining chemical (H3PO4 80% wt.) and thermal activation (at 544 °C). Synthesized AC exh...
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Article
Open AccessWettability evaluation of shale oil reservoirs and its impact on the post-fracturing shut-in duration of horizontal wells: a quantitative study for Ordos Basin, NW China
Shale oil development in Ordos Basin, China, primarily relies on the displacement of crude oil during the post-fracturing shut-in stage (PFSIS) of horizontal wells. Reservoir wettability significantly influenc...
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Article
Effect of Exposure Time to UV Radiation on Mechanical Properties of Glass/Epoxy Composites
Glass Fiber Reinforced Polymer (GFRP) is commonly used in outdoor applications that expose it to environmental conditions capable of degrading its properties, notably ultraviolet (UV) radiation. In this study,...
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Article
Open AccessMicrobial reduction of antimony under anaerobic conditions by inocula from different sources
Antimony (Sb) is a toxic and carcinogenic metalloid that can be present in contaminated water generated by mining operations and other industrial activities. Dissimilatory Sb(V) reduction to Sb(III) under anae...
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Article
Effects of different plasticizers on the physicochemical properties of cellulose nanocrystals-reinforced corn starch films
This study reports biodegradable films composed of corn starch and cellulose nanocrystals (CNC) for food packaging applications. The films were developed using 5% (w/w) CNC and three different plasticizers (gl...
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Article
Open AccessHigh-speed slot-die coating of primer layers for Li-ion battery electrodes: model calculations and experimental validation of the extended coating window depending on coating speed, coating gap and viscosity
In the battery industry, very thin primer layers are used to improve electrode adhesion on substrates or act as blocker layers to prevent corrosion in case of aqueous cathodes. For these material configuration...
