Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
In this study, chemical composition and morphology of gunshot residue (GSR) of 9 × 19 mm Parabellum-type MKE (Turkey)-brand ammunition were analyzed by scanning electron microscope and energy dispersive X-ray spectrometer. GSR samples were collected by "swab" technique from the shooter's right hand immediately after s…
Newly discovered Bi-O-S compounds remain an enigma in attempts to understand their electronic properties. A recent study of Bi4O4S3 has shown it to be a mixture of two phases, Bi2OS2 and Bi3O2S3, the latter being superconducting (Phelan et al 2013 J. Am. Chem. Soc. 135 5372-4). Using density functional theory, we expl…
ABSTRACT The oxygen and water vapor permeability at high relative humidity was studied for composite films formed by incorporation of three different bentonites (MMT) into an ethylene‐modified, water‐soluble poly(vinyl alcohol), EPVOH. The oxygen permeability decreased linearly with an increased addition of hydrophili…
In this work, the corrosion resistance of X190CrVMo20‐4‐1 martensitic stainless steel and the hardness are correlated with the tempering temperature. The steel was hardened from a typical austenitisation temperature, quenched in oil and tempered up to 600 °C. The corrosion resistance was investigated by means of elect…
Streptococcus pneumoniae is a human pathogen whose principal virulence factor is its capsule. This structure allows the bacterium to evade the human immune system. Treatment of infections caused by this bacterium is based on antibiotics; however, the emergence of antibiotic-resistant strains makes this task increasing…
We present a nonlinear Langevin model to investigate the early-stage dynamics of electrified polymer jets in electrospinning experiments. In particular, we study the effects of air drag force on the uniaxial elongation of the charged jet, right after ejection from the nozzle. Numerical simulations show that the elonga…
We aim at becoming released from the invisible hand of de Vries scenario that a small temperature change in the smectic layer spacing must be caused by ‘the far-fetched orientational distribution called the de Vries diffused cone’ or ‘the in-layer directors statically tilted and randomly distributed around the smectic…
Abstract In this work, an overview of three different through‐plane resistivity measurement methods accompanied with the in‐plane resistivity measurement method is given and the methods thoroughly evaluated. It is found that the accuracy of the results is highly dependent on the measurement method. The gold coated ele…
During a severe nuclear accident, the UO2 fuel rods, Zircaloy cladding, guide tubes, absorber and steel structural components inside the reactor pressure vessel overheat and a series of interactions between these elements and the steam atmosphere occur. These produce more heat in addition to the decay heat and result…
Thermal–hydraulic design and analysis is an important step for blanket design to determine the temperature of the material, hydraulics parameter and radial building, especially in scope optimization phase. Traditionally, thermal–hydraulic calculation is a tedious work for designer while combining with neutronic design…
This paper describes the effects of particle sphericity, interfacial thermal resistance, stereography, and heat generation on the thermal conductivity of U–Mo/Al dispersion fuel. The ABAQUS finite element method (FEM) tool was used to calculate the effective thermal conductivity of U–Mo/Al dispersion fuel by implement…
The effect of dispersion of polyaniline on the mechanical, morphology, electrical, and thermal properties of the PS/PMMA blends prepared by solution casting fabrication process was investigated. PS/PMMA (50/50) wt% blend with 3% pluronic and 1% polyaniline gave the best tensile strength in comparison with other blends…
Configurations of supercooled liquids residing in their local potential minimum (i.e., in their inherent structure, IS) were found to support a non-zero shear stress. This IS stress was attributed to the constraint to the energy minimization imposed by boundary conditions, which keep size and shape of the simulation c…
In this letter, we report an analog small signal amplifier based on semiconducting black phosphorus (BP), the most recent addition to the family of 2D crystals. The amplifier, consisting of a BP load resistor and a BP field-effect transistor (FET), was integrated on a single flake. The gain of the amplifier was found…
The surface enhanced raman scattering (SERS) signal from the l-tyrosine (tyr) molecule adsorbed on gold nanoparticles (Au-tyr) is compared with the SERS signal assisted by the presence of gadolinium ions (Gd(3+)) coordinated with the Au-tyr system. An enhancement factor of the SERS signal in the presence of Gd(3+) ion…
Since they were discovered in 1991 [2], CARBON nanotubes (CNTs) have attracted enormous attention because of their remarkable properties [1], such as high electrical conductivity, ultrasmall diameter, and large aspect ratio. In addition, CNTs exhibit significant electromechanical properties [3] that could be useful in…
Wet fabric clinging to human skin brings physical and mental discomfort. In order to characterize the adhesion force sticking the fabric to human skin, a theoretical model is developed by analyzing the configuration of the liquid bridge between a fabric and large volume of liquid beneath. A new testing method is propo…
Testacean traditional Chinese medicine (TTCM), derived from the outer shell of sea or freshwater mollusks, is a special and important category of Chinese medicinal materials. To ensure the effective use of TTCM, a comparative identification study was performed on five commonly-used testacean drugs, including Haliotidi…
Patterning based on directed self-assembly (DSA) of block copolymer (BCP) has been demonstrated to be a cost-effective manufacturing technique for advanced sub-20-nm structures. This paper describes the application of Mueller matrix spectroscopic ellipsometry (MMSE) based scatterometry to optically characterize polyst…
In this work, crude oil characterization based on surface plasmon resonance (SPR) is demonstrated. Oil characterization plays a crucial role in both the upstream and downstream oil industry. The application of SPR to these opaque, high index fluids is made possible here using infrared light (λ = 1550 nm) for which cru…