Materials Literature
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Abstract Metal oxide nanoparticle resists have attracted much attention as the next-generation resist used for the high-volume production of semiconductor devices. However, the sensitization mechanism of the metal oxide nanoparticle resists is unknown. Understanding the sensitization mechanism is important for the eff…
The thermal issues in heat-assisted magnetic recording (HAMR) technology have drawn much attention in the recent literature. In this paper, the head flying characteristics and thermal performance of a HAMR system during the touch-down process considering different nanoscale heat transfer models across the head-disk in…
We investigate the effects of long-ranged Coulomb interactions in a tilted Dirac semimetal in two dimensions by using the perturbative renormalization-group (RG) method. Depending on the magnitude of the tilting parameter, the undoped system can have either Fermi points (type I) or Fermi lines (type II). Previous stud…
The origin of substrate preference in promiscuous enzymes was investigated by enzyme isotope labelling of the alcohol dehydrogenase from Geobacillus stearothermophilus (BsADH). At physiological temperature, protein dynamic coupling to the reaction coordinate was insignificant. However, the extent of dynamic coupling w…
High Resolution Image Download MS PowerPoint Slide In this work, synthesis of two cross-linked polymeric systems through isoxazoline ring formation using nitrile oxide–acrylate click chemistry has been described. In the first system, styrenic block copolymer with oxime-functionalized middle block was synthesized using…
Abstract The physical properties and thermal decomposition kinetics of wood-inorganic composites (WICs) were in focus, which were prepared from methyltriethoxysilane (MTEOS), tetraethoxysilane (TEOS) and titanium (IV) isopropoxide (TTIP) by the sol-gel process. The hydrophobicity and dimensional stability of the compo…
There is an increasing interest in developing porous metals or metallic foams for functional and structural applications. The study of the physical and mechanical properties of porous metals is very important and helpful for their application. In this paper, a novel sintered multilayer wire mesh porous plate material…
In this study, a characteristic analysis of irreversible demagnetization in brushless dc motors (BLDCMs) according to the winding connection type, wye, and delta, is conducted. Depending on the excitation sequence and inverter output current for each winding method, different irreversible demagnetization characteristi…
The polytetrafluroethylene (PTFE) mixed with different particles, such as SiO 2 , MoS 2 , and graphite, were prepared by using cold briquetting and hot sintering technologies. In order to investigate the influence of different mixture ratios of particles on the wear properties of PTFE composite under natural seawater…
Nanosized spinel Li4Ti5O12 was successfully synthesized by a solid state reaction method at 800°C according to the Li4Ti5O12 cubic spinel phase structure. In this synthesizing process, anatase TiO2 and Li2CO3 were used as reactants. The average grain size of the synthesized powders was around 200 nm. The synthesized L…
We study the magnetic dynamics of magnetoelectric antiferromagnetic thin films, where an unconventional boundary ferromagnetism coexists with the bulk N\'eel phase below the N\'eel temperature. The spin exchange between the two order parameters yields an effective low-energy theory that is formally equivalent to that…
The filtering performance of series hybrid active power filter (SHAPF) based on fundamental magnetic flux compensation positively correlates with the magnetising impedance of the transformer. However, excessive magnetising impedance will decrease reliability while increasing capacity and costs of the whole system. In…
Although the list of proteins that localize to the bacterial cell poles is constantly growing, little is known about their temporal behavior. EI, a major protein of the phosphotransferase system (PTS) that regulates sugar uptake and metabolism in bacteria, was shown to form clusters at the Escherichia coli cell poles.…
ABSTRACT Polystyrene (PS) microencapsulated paraffin wax (MePW) and PS–SiO2 MePW were used to improve the form‐stability of PW in hydroxyl‐terminated polybutadiene‐derived polyurethane (HTPB) binder. HTPB matrix containing different contents of PS MePW, PS–SiO2 MePW, and PW were prepared. The chemical composition, cry…
Perovskite-related layered cuprates are considered the basis of all high- T c superconductors. Considerable effort has been put into understanding these materials. Deposition of phase-pure and oriented thin films can help shed light on the unusual interplay between the structure and properties, as the copper layers wi…
A family of mPEG- b -polycarbonate (mPEG-PC) diblock pendant polymers were synthesized from trimethylene carbonate and other cyclic carbonate monomers bearing hydrophobic guest ligands via organocatalytic ring-opening polymerization using 1,4,5-triazabicyclo[4.4.0]dec-5-ene catalyst or 1,8-diazabicyclo[5.4.0]undec-7-e…
Bonding agents as additional modifiers are used to improve the reinforcement effect between binder and high solid filler in propellant formula. However, polar bonding agents are easily soluble with polar plasticizer and weak bonding effect. Thus, grafting the bonding group into binder to form neutral polymeric is a no…
TiO2 nanoparticles and Halloysite nanotubes were used together to modify epoxy matrix. They were introduced into the matrix using two different approaches: (a) both TiO2 nanoparticles and Halloysite nanotubes were incorporated into epoxy in their original form; (b) TiO2/Halloysite hybrid prepared by hydrothermal react…
Centrifugal barrel polishing (CBP) is a simple and environmentally friendly method that can be applied for mechanical abrasion of the cavity interior in order to remove the mechanically damaged surface after its production. The CBP recipes described in the literature, however, require CBP to be performed in many stage…
The European ALARA Network regularly organises workshops on topical issues in radiation protection. In light of the Fukushima accident, the most recent workshop questioned the application of the ALARA principle in emergency exposure situations. This memorandum presents the conclusions and recommendations of this works…