PEMFC model identification using a squeezenet developed by modified transient search optimization algorithm.

Proton Exchange Membrane Fuel Cells (PEMFCs) are promising sources of clean and renewable energy, but their performance and efficiency depend on an accurate modeling and identification of their system parameters. However, existing methods for PEMFC modeling suffer from drawbacks, such as slow convergence, high computational cost, and low accuracy. To address these challenges, this research work proposes an enhanced approach that combines a modified version of the SqueezeNet model, a deep learning architecture that reduces the number of parameters and computations, and a new optimization algorithm called the Modified Transient Search Optimization (MTSO) Algorithm, which improves the exploration and exploitation abilities of the search process.

Sutures positioning technique enhances the predictability and concordance between preoperative simulation and actual outcomes in rhinoplasty.

Background: The predictability and concordance between simulated and actual outcomes in rhinoplasty are uncertain. Here, we introduce a suture positioning technique (SPT), a simple and low-cost method to minimize the gap between the simulated and actual outcomes of rhinoplasty.

Methods: Seventy patients were enrolled in this study between January 2018 and January 2021.

GaN surface acoustic wave filter with low insertion loss.

Surface acoustic wave (SAW) filter with a low insertion loss (IL) of 4.415 dB has been demonstrated on Carbon-doped semi-insulating c-plane bulk GaN without external lumped element matching. The center frequency, 3 dB bandwidth, out-of-band attenuation, return loss of the filter are 477.

An Experimental and Theoretical Study of Impact of Device Parameters on Performance of AlN/Sapphire-Based SAW Temperature Sensors.

The impact of device parameters, including AlN film thickness (), number of interdigital transducers (), and acoustic propagation direction, on the performance of -plane AlN/sapphire-based SAW temperature sensors with an acoustic wavelength () of 8 μm, was investigated. The results showed that resonant frequency () decreased linearly, the quality factor () decreased and the electromechanical coupling coefficient (Kt2) increased for all the sensors with temperature increasing from -50 to 250 °C. The temperature coefficients of frequency (TCFs) of sensors on AlN films with thicknesses of 0.

E/D-Mode GaN Inverter on a 150-mm Si Wafer Based on p-GaN Gate E-Mode HEMT Technology.

AlGaN/GaN E/D-mode GaN inverters are successfully fabricated on a 150-mm Si wafer. P-GaN gate technology is applied to be compatible with the commercial E-mode GaN power device technology platform and a systematic study of E/D-mode GaN inverters has been conducted with detail. The key electrical characters have been analyzed from room temperature (RT) to 200 °C.

Aurora A inhibition disrupts chromosome condensation and spindle assembly during the first embryonic division in pigs.

As common overexpression of Aurora A in various tumours, much attention has focused on its function in inducing cancer, and its value in cancer therapeutics, considerably less is known regarding its role in the first cleavage division of mammalian embryos. Here, we highlight an indispensable role of Aurora A during the first mitotic division progression of pig embryos just after meiosis. The expression and spatiotemporal localization of Aurora A were initially assessed in pig embryos during the first mitotic division by Western blot analysis and indirect immunofluorescent staining.

Circular RNA ITCH downregulates GLUT1 and suppresses glucose uptake in melanoma to inhibit cancer cell proliferation.

Background: Circular RNA ITCH has been proved as a tumor suppressor in several types of cancer. Genetic alterations are known to play important roles in melanoma development. However, the function of circular RNAs and the role of ITCH in melanoma are still hardly known.

Wound natural healing in treatment of tumor-like hypertrophic scar.

Background:: Surgical sutures, wound tension, additional skin incisions and other factors may result in recurrence of tumor-like scar.

Objective:: To investigate the role of wound natural healing therapy in tumor-like hypertrophic scar.

Methods:: In this study, tumor-like hypertrophic scars of 47 cases were excised completely and the residual wounds were treated with natural healing.

In vitro activity of fosfomycin in combination with linezolid against clinical isolates of methicillin-resistant Staphylococcus aureus.

The objective of this paper was to investigate the in vitro effects of fosfomycin combined with linezolid against methicillin-resistant Staphylococcus aureus (MRSA). A total of 102 MRSA isolates isolated from clinical specimens of human infections from three hospitals in China were studied. The microdilution checkerboard method was used to determine whether combinations act synergistically against these isolates.

In vitro activity of two old antibiotics against clinical isolates of methicillin-resistant Staphylococcus aureus.

The objective of this paper was to investigate the in vitro effects of fusidic acid combined with fosfomycin against methicillin-resistant Staphylococcus aureus (MRSA). In all, 196 MRSA strains isolated from three clinical specimens of human infections from hospitals in China were used in this study. The checkerboard method was used to determine whether combinations act synergistically against these strains.