Joint impacts of hardware impairments,imperfect CSIs,and interference constraints on underlay cooperative cognitive networks with reactive relay selection

Telecommunication Systems - In this paper, we investigate joint impacts of hardware impairments, imperfect channel state information (CSI) and interference constraints at secondary users in an...     

You Said That?: Synthesising Talking Faces from Audio

International Journal of Computer Vision - We describe a method for generating a video of a talking face. The method takes still images of the target face and an audio speech segment as inputs, and...     

Statistical optimization of culture medium for improved production of antimicrobial compound by Streptomyces rimosus AG-P1441

Food Science and Biotechnology - The nutritional requirements for antimicrobial activity of Streptomyces rimosus AG-P1441 were optimized using statistically-based experimental designs at a flask...     

Palladium nanoparticles from surfactant/fast-reduction combination one-pot synthesis for the liquid fuel cell applications

We report a facile one-pot synthesis of well-dispersed Pd nanoparticles on a carbon nanofiber (CNF) support, achieved via the unique sequential processes of supramolecular self-assembly and fast reduction of the Pd source. Pd ions attached to the sulfate ends of sodium dodecyl sulfate (SDS) molecules self-assembled on a CNF, and subsequent fast reduction suppressed particle coarsening, in contrast to the slow reduction processes in previous works. The particle size and dispersion uniformity were comparable to those of particles synthesized by combined SDS/high-energy irradiation. The Pd nanoparticles prepared using the present one-pot approach were superior or comparable to those obtained using non-one-pot approaches in previous works in terms of electrocatalytic activity and long-term stability in the electrooxidation of liquid fuels at the anodes of direct formic acid, direct methanol, and direct ethanol fuel cells.     

Stability Analysis of a Nonlinear PID Controller

International Journal of Control, Automation and Systems - In our previous work, the authors presented an effective nonlinear proportional-integral-derivative (PID) controller by incorporating a...     

Biocompatible Magnetic Micro- and Nanodevices: Fabrication of FePt Nanopropellers and Cell Transfection

The application of nanoparticles for drug or gene delivery promises benefits in the form of single-cell-specific therapeutic and diagnostic capabilities. Many methods of cell transfection rely on unspecific means to increase the transport of genetic material into cells. Targeted transport is in principle possible with magnetically propelled micromotors, which allow responsive nanoscale actuation and delivery. However, many commonly used magnetic materials (e.g., Ni and Co) are not biocompatible, possess weak magnetic remanence (Fe₃O₄), or cannot be implemented in nanofabrication schemes (NdFeB). Here, it is demonstrated that co-depositing iron (Fe) and platinum (Pt) followed by one single annealing step, without the need for solution processing, yields ferromagnetic FePt nanomotors that are noncytotoxic, biocompatible, and possess a remanence and magnetization that rival those of permanent NdFeB micromagnets. Active cell targeting and magnetic transfection of lung carcinoma cells are demonstrated using gradient-free rotating millitesla fields to drive the FePt nanopropellers. The carcinoma cells express enhanced green fluorescent protein after internalization and cell viability is unaffected by the presence of the FePt nanopropellers. The results establish FePt, prepared in the L1₀ phase, as a promising magnetic material for biomedical applications with superior magnetic performance, especially for micro- and nanodevices.     

Second Order Training and Sizing for the Multilayer Perceptron

Neural Processing Letters - An algorithm is developed for automated training of a multilayer perceptron with two nonlinear layers. The initial algorithm approximately minimizes validation error...     

Analysis and elimination of noise-induced temperature error in processor thermal control

Real-Time Systems - Processor thermal control in real-time systems is crucial because overheated processors may result in critical performance degradation or even system failure. The main...     

TCR Transgenic Mice: A Valuable Tool for Studying Viral Immunopathogenesis Mechanisms

Viral infectious diseases are a significant burden on public health and the global economy, and new viral threats emerge continuously. Since CD4⁺ and CD8⁺ T cell responses are essential to eliminating viruses, it is important to understand the underlying mechanisms of anti-viral T cell-mediated immunopathogenesis during viral infections. Remarkable progress in transgenic (Tg) techniques has enabled scientists to more readily understand the mechanisms of viral pathogenesis. T cell receptor (TCR) Tg mice are extremely useful in studying T cell-mediated immune responses because the majority of T cells in these mice express specific TCRs for partner antigens. In this review, we discuss the important studies utilizing TCR Tg mice to unveil underlying mechanisms of T cell-mediated immunopathogenesis during viral infections.