Development of MgB2-based, bulk supermagnets
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Materials Literature
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Article title: “Synthesis and Characterization of Zn3Nb2O8 Nanopowders Via a Rapid Vibro-Milling Technique”Authors: P. Pakawanit, P. Amonpattaratkit, R. Yimnirun, and S. AnantaJournal: Ferroelectri...
Determination of wear of the shaft of generator wave of power wave transmission
The article is devoted to the determination of wear of power transmission wave generator in the design phase and during operation. It is shown how the wear affects efficiency of lift mechanisms for different types of distribution of the specific load over the length of the working surface of the discs of wave generato…
Magnetic Components Precise Modeling for Power Converters
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Effect of cathode movement on properties of electroplated nickel coating on irregular parts
In fabrication of vacuum electronics device, one of the most important steps is electroplating nickel coating on irregular parts. Ni coatings on the surface of irregular parts were prepared by moving-cathode electroplating technology. The effects of cathode movement on the propertieselectrodeposition rate, micro morph…
Terahertz metal bi-grating fabrication using ultra-thick photoresist process
As a key part of terahertz vacuum electronic device, metal grating cant be fabricated using traditional methods due to its tiny dimension. The photoetching process of metal bi-grating for radiation source at some terahertz band was presented. The influence of the procedure (including substrate preparation, spin-coatin…
Critical behavior of the energy gap and its relation with the Berry phase close to the excited state quantum phase transition in the Lipkin model
In our previous work [Phys. Rev. A \textbf{85}, 044102 (2012)], we have studied the Berry phase of the ground state and exited states in the Lipkin model. In this paper, using Hellmann-Feynman theorem, we derive the relation between the energy gap and the Berry phase close to the excited state quantum phase transition…
Spark Plasma Sintering Of Aluminum-Based Composites Reinforced By Nanocrystalline Carbon-Coated Intermetallic Particles
Aluminum Matrix Composites reinforced with nanocrystalline Ni3Al carbon-coated intermetallic particles, were synthesized by powder metallurgy. Powder mixture of aluminum with 0.5-volume fraction of reinforcement particles was compacted by spark plasma sintering (SPS) technique and the compared with conventional sinter…
Fabrication and Mechanical Characterization of Thai Silk Fibroin Nanofibrous Scaffolds
Silk fibroin from Thai Bombyx mori (Nangnoi Srisaket-I) cocoons was interested to use as biomaterial for tissue engineering scaffolds. In this paper, Thai silk fibroin based nanofibrous scaffolds were fabricated by electrospinning technique. The effects of electrospinning parameters, such as silk fibroin/formic acid s…
Terahertz Optical Conductance of n-type Monolayer MoS2
We present a theoretical study on optoelectronic properties of n-type monolayer MoS2 under long-wavelength light radiation. The optical conductance for such material system is evaluated using the energy-balance equation derived from the Boltzmann equation in the presence of linearly polarized radiation field. For n-ty…
Uniform and Duty Cycle Tunable Photonic Crystal LEDs Fabricated by Intermediate Mask Layer: Soft UV Nanoimprint Lithography
As an improvement of the conventional nanoimprint lithography, an intermediate mask layer process is invited for photonic crystal pattern transfer on LEDs. Benefit from the smooth effect of the under-layer resist, uniform photonic crystal structure is successfully transferred to the p-GaN surface. The intermediate SiO…
Tunable Synthesis of 3D ZnS Architectures and the Optical Properties
The complex 3D ZnS architectures with two morphologies—sea urchin-like and flower-like structure—have been synthesized by changing the solvent under solvothermal conditions. The morphology, phase structure and optical properties of the products have been characterized by field emission scanning electron microscopy (FE…
Effect of Surface Nanocrystals on the Plastic Deformation Behavior in Micro Compression
When the geometry of metal specimen is scaled down to micro scale, it is difficult to predict the plastic deformation behavior because of size effects. In this paper, the object is focused on the effect of surface nanocrystals on the plastic deformation behavior in micro scale. Micro cylinders of pure copper with surf…
Films for Modified Atmosphere Packaging Applications
Oxygen and carbon dioxide transmission rates (OTR and CO2TR, respectively) of lowdensity polyethylene (LDPE) films were measured at 5, 10, and 26oC (ambient condition) using an exponential decay method. Commercially available LDPE films with a nominal thickness of 25, 40, and 50 μm were used; transmission rates of unp…
Lasiorhinus latifrons: Woinarski, J. & Burbidge, A.A.
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
Hidden Invariants in Rheology: The Persistent Granular Nature of Liquids
This article will use arguments derived from the deformation driven component of mixing, especially important for microfluidics, to show that the standard invariant based approaches to rheology are lacking. It is shown that the deviator, $D_{ij}$, after the process of symmetrization, loses microscopically determined i…
Recent Trends in Industrial Applications
Lightweight, thermal clothes that breathe made of specially designed chemical fiber; smart phones equipped with a high-resolution liquid crystal display and a long-life lithium battery; low-emission hybrid/electric vehicles powered by a high-capacity battery and high-efficient electric motor—we benefit richly from the…
Photoluminescence Quenching in Single-layer MoS2 via Oxygen Plasma Treatment
By creating defects via oxygen plasma treatment, we demonstrate optical properties variation of single-layer MoS2. We found that, with increasing plasma exposure time, the photoluminescence (PL) evolves from very high intensity to complete quenching, accompanied by gradual reduction and broadening of MoS2 Raman modes,…
Graphene-based membranes – a new opportunity for CO2separation
Currently, membrane separation processes play a very significant role in the separation industry. Widely used membrane processes include microfiltration, ultrafiltration, nanofiltration, reverse os...
Investigation of an axial flux machine for hybrid and electric cars regarding magnet losses and protecting against thermal demagnetization
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