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Article
Effect of Epoxy Sealant Loaded with Modified Montmorillonite on the Corrosion Resistance of Fe-Based Amorphous Metallic Coating
An epoxy resin loaded with modified montmorillonite (OMMT) was successfully employed to seal a Fe-based amorphous metallic coating (AMC). The OMMT was prepared by first modifying octadecylamine followed by int...
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Article
Numerical simulation of particle concentration and size on the slurry erosion on the surface of V-shaped groove microstructure
Sand concentration and particle size are the main factors that affect the erosion of solid surfaces under the impact of solid particles in liquid–solid two-phase flow. In this study, five sand concentrations (...
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Article
Two components model for TeV \(\gamma \) -ray emission from extreme high-energy BL Lac objects
Extreme high-energy peaked BL Lac objects (EHBLs) are an emerging class of blazars with exceptional spectral properties, e.g., enhanced emission in the hard X-ray region and a hard spectrum at very high ...
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Article
HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
Fast radio bursts (FRBs) are short pulses observed in the radio band from cosmological distances1. One class of models invokes soft gamma-ray repeaters (SGRs), or magnetars, as the sources of FRBs2. Some radio pu...
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Article
Establishing a particle distribution for multi-wavelength emission from BL Lac objects
Electrons are accelerated at the shock wave diffuse and advect outward, and subsequently drift away into the emitting region of the jet that is located in the downstream flow from the plane shock. The current ...
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Article
Cavitation Erosion and Corrosion Behavior of NiTi Cladding with Cu and Nb Interlayers
Cavitation erosion resistance of NiTi claddings by tungsten inert gas with/without Cu, Nb and Cu + Nb interlayers was investigated. The NiTi-TIG and NiTi-Nb-TIG claddings cannot resist the cavitation erosion d...
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Article
Large deformation and wrinkling analyses of bimodular structures and membranes based on a peridynamic computational framework
In this paper, the quasi-static large deformation, wrinkling and fracture behaviors of bimodular structures and membranes are studied with an implicit bond-based peridynamic computational framework. Firstly, t...
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Article
GeV-TeV \(\gamma \) -ray energy spectral break of BL Lac objects
In this paper, we compile the very-high-energy and high-energy spectral indices of 43 BL Lac objects from the literature. Based on a simple math model, ...
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Article
Effects of dissolved oxygen on the electrochemical corrosion behavior of pure titanium in fluoride-containing weakly acidic solutions
The effects of dissolved oxygen (DO) on the electrochemical behavior of titanium in fluoride-containing weakly acidic solutions (pH = 5.0) were evaluated quantitatively by electrochemical methods, such as open...
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Article
Corrosion Behavior of Cu40Zn in Sulfide-Polluted 3.5% NaCl Solution
The corrosion behavior of a duplex-phase brass Cu40Zn in clean and sulfide-polluted 3.5% NaCl solutions was investigated by conducting electrochemical and gravimetric measurements. The corrosion product films ...
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Article
Effects of Sodium Thiosulfate and Sodium Sulfide on the Corrosion Behavior of Carbon Steel in an MDEA-Based CO2 Capture Process
The corrosion behavior of carbon steel has been tested in the presence of sodium thiosulfate and sodium sulfide in an MDEA-based CO2 capture system using electrochemical methods, weight loss measurements and surf...
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Article
Evaluation of the dissolved oxygen-related electrochemical behavior of pure titanium in acidic fluoride-containing solutions
The effects of dissolved oxygen (DO) on the corrosion behavior of pure titanium in acidic fluoride-containing acids (pH = 0.6–2.0) were evaluated by electrochemical methods, such as open circuit potential (OCP...
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Article
Corrosion Protection Performance of Nano-SiO2/Epoxy Composite Coatings in Acidic Desulfurized Flue Gas Condensates
Five kinds of nano-SiO2/epoxy composite coatings were prepared on mild steels, and their corrosion protection performance was evaluated at room temperature (RT) and 50 °C (HT) using electrochemical methods combin...
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Article
Power Spectrum Density of Stochastic Oscillating Accretion Disk
In this paper, we employ a stochastic oscillating accretion disk model for the power spectral index and variability of BL Lac object S5 0716+714. In the model, we assume that there is a relativistic oscillatio...
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Article
Open AccessWater filling and electric field-induced enhancement in the mechanical property of carbon nanotubes
The effects of water filling and electric field on the mechanical property of carbon nanotubes (CNTs) are investigated with molecular dynamics simulations. The simulation results indicate that the water fillin...
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Article
Failure Analysis of a Reboiler in the Waste Water Strip** Tower of a Petrochemical Plant
A severe leak occurred on the heat-exchanger tubes of a reboiler after approximately 9-month operation in the waste water strip** tower of a petrochemical plant. Failure analyses were carried out through the...
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Article
Corrosion Inhibition Performance of Triazole Derivatives on Copper-Nickel Alloy in 3.5 wt.% NaCl Solution
This study investigates the performance of three triazole derivatives with different molecular structures as corrosion inhibitors for the copper-nickel alloy CuNi 90/10 in 3.5 wt.% NaCl solution. Inhibition be...
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Article
Reversible stretching of pre-strained water-filled carbon nanotubes under electric fields
As a two-phase structure, the water-filled carbon nanotubes (CNTs) have been successfully observed and separated in laboratory, which provide an ideal choice for functional building blocks at nanoscale. In thi...
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Article
Electrochemical behavior of phenylalanine and its cobalt complex as corrosion inhibitors for mild steel in H2SO4
Corrosion inhibition of phenylalanine (phe) and its its cobalt complex(Co-phe) were evaluated using electrochemical polarization and electrochemical impedance spectroscopy (EIS) for mild steel in 0.1 M H2SO4 solu...
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Article
Delta-function Approximation SSC Model in 3C 273
We obtain an approximate analytical solution using δ approximate calculation on the traditional one-zone synchrotron self-Compton (SSC) model. In this model, we describe the electron energy distribution by a brok...