Calcium phosphate biocements based on calcium phosphate chemistry are well-established biomaterials for the repair of non-load bearing bone defects due to the brittle nature and low flexural strength of such cements. This article features reinforcement strategies of biocements based on various intrinsic or extrinsic material modifications to improve their strength and toughness. Altering partic...

in this paper, an intelligent controller is applied to control omni-directional robots motion. first, the dynamics of the three wheel robots, as a nonlinear plant with considerable uncertainties, is identified using an efficient algorithm of training, named lolimot. then, an intelligent controller based on brain emotional learning algorithm is applied to the identified model. this emotional lea...

This study describes the onset process of auroral substorms in connection with the vertical evolution of auroral particle acceleration, on the basis of auroral kilometric radiation (AKR) dynamics. We show that the auroral acceleration process at substorm onset basically consists of two stages: (1) appearance/intensification of a low-altitude acceleration region at 4000–5000 km accompanied by in...

In this present study, A356.2 Al/Rice hush ash (RHA) metal matrix composites (MMCs) were fabricated by vortex method. Different weight fractions of reinforcement were used to fabricate the composites. Scanning electron microscope equipped with energy dispersive Xray analyzer is used for micro structural characterization. The properties like density, hardness, and ultimate tensile strength were ...

The SWarm Intelligence-based Reinforcement Learning (SWIRL) method is proposed in this paper to efficiently generate Artificial Neural Network (ANN) based solutions to various problems. Basically, two swarm intelligence based algorithms are combined together in SWIRL to train the ANN models. Ant Colony Optimization (ACO) is applied to optimize ANN topology, while Particle Swarm Optimization (PS...

Composites have been used as the needed material of current interest to curb deficiencies and meeting ever-increasing demand in science technology. In this study, production was done by stir casting method mechanical properties AA606l/clay were assessed. The cast manufactured with liquid metallurgy route through reinforcement 2 - 8 weight percentages particle sizes 75 µm clay. microstructural t...

The current work aims to investigate the mechanical properties of rare oxide reinforced Mg alloy based MMCs. Magnesium matrix considered in study is AZ91D alloy, whereas earth oxides were CeO2 and Y2O3. Y2O3 particulate reinforcement percentage was varied from 1 3% steps 1% its influence on Stir casting route adopted fabricate sample for study. Microstructure analysis illustrated uniform distri...

The application of Static Random-Access Memory (SRAM), becomes more and more widely in aviation. However, the large amount of SRAM cells is very vulnerable to radiation included single-event upset (SEU). Based on the detection requirement of SRAM’s SEU, the detected circuit of the SEU on SRAM is designed. Then the method of redundancy check is used in the reinforcement of the SEU. The test resu...

Particle composites are materials reinforcement of which is formed by non fibrous particles. The particle size is in all directions equal. The properties of polymeric particle composites are defined by the synergic sum of the matrix properties and the filler properties. The polymeric particle composite, the filler of which was the waste in form of sawdust, chips and grit blasted material coming...

Semiconductor, quantum dot (QD) nanoparticles (including CdSe/ZnS, CdTe/ZnS, and CdSe) were encapsulated within cross-linked shells of amphiphilic polystyrene-block-poly(acrylic acid) block copolymer. Transmission electron microscopy revealed that each particle was surrounded by a uniform, layer of copolymer, and that the average diameter of the resulting QD-core micelles was between 25 and 50 ...