Materials Literature
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Negative linear compressibility, i.e., the phenomenon of expansion rather than shrinkage in at least one direction upon the application of a hydrostatic compressive pressure is an unusual mechanical property which is attracting more interest in the recent years. Here, through analysis of published data by Hu et al. [J…
Unprecedented expansion of native direct current (DC) powered equipment (computers and consumer electronics) has increased household DC electricity consumption over the past decade. Since power utilities deliver alternating current (AC) rather than DC, the conversion process (rectifier) used to supply DC loads is very…
Voltage unbalance is one of the main concerns in power quality studies. In the work here three-phase transmission system analysis is used to simulate voltage unbalance. Distributed Series Reactors (DSRs) are employed to improve voltage unbalance due to asymmetry in line parameters, unbalanced loading, and other causes…
Transformer failures in transmission and distribution systems can cause substantial service interruptions and take an extended period of time to recover from. Situational awareness in a proactive way about the state-of-health of transformers can greatly help operators and asset managers prepare for emergencies and opt…
Robust and precise control of piezoelectric actuators is quite challenging due to the existence of strong hysteresis nonlinearities. In this paper, a control strategy is proposed based on the uncertainty and disturbance estimator (UDE) to improve the performance of the positioning control of piezoelectric actuators. C…
The additive manufacturing of structures and devices in nanoscale yields the possibility of extending the functionalities of nanoelectronics and developing the alternative nanofabrication technologies for the post-silicon era. The nanorobotic spot-welding that is implemented by the transporting of mass inter/intra thr…
Abstract The most fundamental phenomena in the immobilising of biomolecules on the nanostructured materials for energy, environmental and health applications are the control of interfaces between the nanostructures/nanopores and the immobilized biomaterials. Thus, the throughput of all those biobased nanostructured ma…
The Chinese Academy of Science has launched a thorium-based molten-salt reactor (TMSR) research project with a mission to research and develop a fission energy system of the fourth generation. The TMSR project intends to construct a liquid fuel molten-salt reactor (TMSR-LF), which uses fluoride salt as both the fuel a…
The domain walls dynamics and generation and evolution of magnetic inhomogeneities of soliton type, emerging in a thin flat layer with the parameters of the magnetic anisotropy, which are different from other two thick layers of the five-layer ferromagnetic structure, were investigated.
We investigate the periodically patterned cross-shaped graphene arrays from far-infrared to THz region as wavelength tunable absorbers. By increasing the cross-arm width, the absorption of the single-layer array can essentially exceeds the continuous graphene sheet due to the surface plasmon resonance, even for small…
With more and more wearable electronics entering the market, the bottleneck of batteries attracts considerable attentions because of its limited lifetime and energy storage capacity. To solve this problem, triboelectric nanogenerators (TENG) have recently been researched to be applied on harvesting mechanical energy f…
In this work, we present the fabrication of a 3D graphene and polydimethylsiloxane (PDMS) composite for strain sensing applications. A three-dimensional (3D) graphene foam (GF) was synthesized by chemical vapor deposition (CVD) with nickel foam as a template. GF/PDMS composite was then formed by dip coating the graphe…
The influence of carboxylic-functional-groups (-COOH) on the phase transformation from amorphous calcium phosphate (ACP) to octacalcium phosphate (OCP) was investigated. 11-Mercaptoundecanoic acid, a carboxylic thiol, was immobilized on gold nanoparticles via covalent bond formation. Time-resolved static light scatter…
This study was carried out to investigate the effect of beating process to the characteristics of pulp and paper produced from oil palm oil male flower spikes (OPMFS). OPMFS pulp was prepared according to chemical Soda-AQ pulping process. 60 gsm handsheet of oil palm male flower spikes paper were prepared from OPMFS p…
Abstract Low molecular weight interconnection monomers including polyepichlorohydrin, poly(propylene oxide), poly(ethylene glycol adipate), and poly(butylene adipate) were synthesized to evaluate the effects of the molecular structure of interconnection monomers on the bonding efficiency of borate ester bonding agents…
The catalytic decomposition of ammonia on (C 2 B 10 H 4 ) n organoboron nanoparticles deposited onto SiO 2 , Al 2 O 3 , and graphite substrates at 750 K and 10 –6 Torr is studied. The effect of the substrate material on the rate of NH 3 decomposition is established. It is demonstrated that the replacement of SiO 2 by…
Laser peening is a well-known process applicable to surface treat metals and alloys in various industrial sectors. Research in the area of laser peening of ceramics is still scarce and a complete laser-ceramic interaction is still unreported. This paper focuses on laser peening of SiC ceramics employed for cutting too…
The effect of adding oxygen or hydrogen to a reaction mixture (CH 4 + N 2 ) on the pyrolysis of methane in the temperature range of 700 to 1400°C over an electrically heated fechral coil precalcinated in air is studied. It is shown that the process occurs in two temperature regions that differ from each other in their…
The rheology of suspensions and mechanical properties of green bodies with cordierite composition (raw materials 37 wt% kaolin, 41 wt% talc, 22 wt% alumina, resulting in 46.6 wt% SiO 2 , 38.1 wt% Al 2 O 3 , 13.6 wt% MgO) and two types of starch (corn or potato) are investigated. Rotational viscometry of suspensions wi…
Abstract Zinc zirconium phosphate (ZPZn) nanoparticles have been used as an efficient catalyst for the selective oxidation of a wide range of alcohols to their corresponding ketones or aldehydes using H2O2 as an oxidizing agent without any organic solvent, phase transfer catalyst, or additive. The steric factors assoc…