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。
Starting from reflectarray principles, we derive a formulation to readily predict the electromagnetic scattering of a metasurface when illuminated by an incident plane wave. Examples are shown to illustrate the range of validity and accuracy of the formulation. The formulation provides a quick means of predicting the…
The present paper examines the influence of the tribofinishing process on the surface state of steel parts XC48, while taking into account the variation in hardness and mass. The tribofinishing process is a mechanical-chemical process, which comprises the use of low frequency impact vibration in the presence of abrasi…
In the last few decades, there has been a shift to using more lightweight materials for the potential of fuel consumption reduction. In the Aerospace Industry, conventional metal structures are being replaced by advanced composite structures. The major advantage of an advanced composite structure is the huge reduction…
The propagating modes on a magnetically biased curved graphene microstrip are thoroughly examined in the present work by means of an efficient finite element modal solver. The influence of the anisotropic surface conductivity due to the magnetic bias is carefully addressed and investigated through a multitude of numer…
This paper studies the formation of iron boride on the surface in ductile iron 100-70-03 class exposed to a thermochemical treatment boron dehydrated paste. The formation of iron boride layers Fe2B/FeB-type were obtained at temperatures of 1173 K, 1223 K and 1273 K, with exposure times of 8 hours of treatment. The stu…
In this work we present the design, numerical and experimental results for an ultrathin Soret fishnet metamaterial lens working at fexp = 96.45 GHz. The fishnet metamaterial with effective refractive index close to zero (n = -0.06) is introduced on the back side of the classical Soret lens in order to improve its effi…
W pracy przedstawiono badania właściwości mechanicznych dwóch wytopów staliwa L20HNM o różnym składzie chemicznym i poddanych różnym procesom obróbki cieplnej. Dodatkowo przeprowadzono badania fraktograficzne przełomów udarnościowych i po próbie statycznego rozciągania. Badania wykazały znaczną różnicę we właściwościa…
Room temperature bonding of Polymethylglutarimide was performed for a damage-free layer transfer method. The PMGI layer was bonded to support Si wafer by using the Surface activated bonding method using nano-adhesion layers. Using SAB, bonded area covering around 90% of the wafer surface, with a room temperature bond…
This study investigated the effect of pretreatments including annealing and air plasma irradiation, on the surface roughness and mechanical properties in the subsurface region of Cu blocks, as well as joint strength of directly-bonded samples. Remarkably, high temperature annealing caused a significant reduction in jo…
In this work, the effect of the magnetron sputtering system parameters on the optical properties of the Mn doped GeTe were investigated. The optical properties of the Ge1-xMnxTe thin films with different thicknesses are determined by analyzing the transmittance and reflectance data. The energy band gaps of the amorpho…
We describe a novel class of ultrathin plasmonic metasurfaces able to provide nonlinear conversion efficiencies many orders of magnitude larger than any other nonlinear flat setup previously reported. This large efficiency is achieved over subwavelength thickness, avoiding the use of cumbersome phase matching techniqu…
A direct hybrid bonding of PEEK-Pt is feasible at low temperature of 150 °C through surface treatment technologies of vacuum ultraviolet (VUV) and fast atom bombardment (FAB). The X-ray photoelectron spectroscopy showed the VUV treatment was capable of creating hydrate bridge layers on both PEEK and Pt surfaces, which…
RESUMO Neste trabalho, teve-se como objetivo o ajuste de equações que possibilitassem a estimativa do gradiente de pressão estática do ar, quando insuflado em camadas de resíduos orgânicos misturados com diferentes proporções de cama de frango. As medições do gradiente de pressão estática do ar foram realizadas em um…
Abstract The presence of cancer stem–like cells and the epithelial–mesenchymal transition (EMT) cancer cells serves as one of the primary mechanisms for causing metastasis in cancer. However, there is no clear and universal cell surface markers for identifying these types of cells though multiple intracellular markers…
The concept of increase of characteristics x-ray tubes by use nano-and monocrystal materials is offered in the report.
The object of investigations was alloys based on lead and cadmium used as fuse monitors to control the maximum irradiation temperature (fuse temperature monitors, FTM) of samples from structural steels under irradiation in a research reactor IR-8. The result of the work was selected and tested initial materials for pr…
Abstract Cancer stem cells (CSC) responsible for disease progression and therapeutic resistance have been identified in several human malignancies, including colorectal cancer (CRC). However, the molecular mechanisms through which CSC drive tumor growth are incompletely understood. ABCB5, a member of the ATP-binding c…
The process gas released from the fuel pellets of uranium fuel during fuel burn-up reduces the thermal conductivity of the rod-shell gap, enhances hydrogen embrittlement of the cladding material, causes it's carbonization, as well as transport processes in the fuel. In this study a technique of investigating the therm…
Non covalent interactions through pi-stacking between carbon aromatic cores appear as an essential building block to engender the structural stability and electronic coupling of organic and biologic supramolecular assemblies (DNA, proteins, photosynthetic reaction center...). Interestingly pi-stacking functionalizatio…
In light of worldwide tendency to extension of service life of operating nuclear power plants - VVER-type in the first place - recently a special attention is concentrated on phenomena taking place in reactor pressure vessel materials that are able to lead to increased level of mechanical characteristics degradation (…