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This study employs an innovative dynamic switching test system to investigate the dynamic switching characteristics of three p-GaN HEMT devices. The dynamic switching characteristics are different from the previous research on the dynamic resistance characteristics of GaN devices, and the stability of GaN devices can be analyzed from the perspective of switching characteristics. Based on the theory of dynamic changes in threshold opening voltage and capacitance caused by electrical stress, the mechanism of dynamic switching characteristics of GaN HEMT devices is studied and analyzed in detail. The test results have shown that electrical stress induces trap ionization within the device, resulting in fluctuations in electric potential and ultimately leading to alterations in two critical factors of the dynamic switching characteristics of GaN HEMT devices, the parasitic capacitance and the threshold voltage. The dynamic changes in capacitance before and after electrical stress vary among devices, resulting in different dynamic switching characteristics. The test system is capable of extracting the switching waveform for visual comparison and quantitatively calculating the changes in switching parameters before and after electrical stressing. This test provides a prediction for the drift of switch parameters, offering pre-guidance for the robustness of the optimized application scheme.
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http://dx.doi.org/10.3390/mi15080993 | DOI Listing |
Neural Netw
September 2025
School of Mathematics and Information Science, Guangxi University, Nanning, 530004, China. Electronic address:
This study presents a novel variable gain intermittent boundary control (VGIBC) approach for stabilizing delayed stochastic reaction-diffusion Cohen-Grossberg neural networks (SRDCGNN). In contrast to traditional constant gain intermittent boundary control (CGIBC) methods, the proposed VGIBC framework dynamically adjusts the control gain based on the operational duration within each control cycle, thereby improving adaptability to variations in work interval lengths. The time-varying control gain is designed using a piecewise interpolation method across work intervals, defined by a finite set of static gain matrices.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan.
In adult mammals and other highly developed animals, incomplete wound healing, scar formation, and fibrosis occur. No treatment for complete tissue regeneration is currently available. However, in mice, at up to 13 days of gestation, early embryonic wounds regenerate without visible scarring.
View Article and Find Full Text PDFNPJ Biol Phys Mech
September 2025
Department of Biology, Drexel University, Philadelphia, PA USA.
While migratory cells can quickly change their mode of migration in complex three-dimensional environments, it is not clear why. Understanding the dynamic and reciprocal relationship migrating cells have with their microenvironments may help reveal why migratory plasticity, or mode-switching, is a common feature of eukaryotic cell motility. In this review, we discuss the physical and mechanical properties of cells and the environments they move through, and how those properties can influence each other.
View Article and Find Full Text PDFMedComm (2020)
September 2025
Department of Laboratory Medicine Zhongnan Hospital of Wuhan University Wuhan China.
RNA modifications, including N6-methyladenosine (m6A), 5-methylcytosine, and pseudouridine, serve as pivotal regulators of gene expression with significant implications for human health and disease. These dynamic modifications influence RNA stability, splicing, translation, and interactions, thereby orchestrating critical biological processes such as embryonic development, immune response, and cellular homeostasis. Dysregulation of RNA modifications is closely associated with a variety of pathologies.
View Article and Find Full Text PDFMater Today Bio
October 2025
Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
Clinically, even in patients diagnosed with non-obstructive azoospermia, spermatogenesis may be present in some seminiferous tubules, which gives the patient hope of having biological offspring of his own. However, there is still a blank for high-precision detection technologies to support accurate diagnosis and effective treatment. In this work, we successfully developed a minimally invasive fine needle detection memristive device that features a structure composed of Ag/CH-MnO/FTO by utilizes the organic-inorganic heterojunction as functional layer.
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