Green Method for the Preparation of Durable Superhydrophobic Antimicrobial Polyester Fabrics with Micro-Pleated Structures.

To produce functional protective textiles with minimal environmental footprints, we developed durable superhydrophobic antimicrobial textiles. These textiles are characterized by a micro-pleated structure on polyester fiber surfaces, achieved through a novel plasma impregnation crosslinking process. This process involved the use of water as the dispersion medium, water-soluble nanosilver monomers for antimicrobial efficacy, fluorine-free polydimethylsiloxane (PDMS) for hydrophobicity, and polyester (PET) fabric as the base material. The altered surface properties of these fabrics were extensively analyzed using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometry (XPS), thermogravimetric analysis (TGA), and water contact angle (WCA) measurements. The antimicrobial performance of the strains was evaluated using Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. After treatment, the fabrics exhibited enhanced hydrophobic and antimicrobial properties, which was attributed to the presence of a micro-pleated structure and nanosilver. The modified textiles demonstrated a static WCA of approximately 154° and an impressive 99.99% inhibition rate against both test microbes. Notably, the WCA remained above 140° even after 500 washing cycles or 3000 friction cycles.

Optical design and precision analysis of a single-line-array pendulum sweep high-resolution mapping camera.

With the improvement of the satellite resolution, it is urgent to develop the single-line-array mapping camera. However, the camera accuracy is influenced by the satellite attitude's rapid maneuvering during the imaging process. In our study, a coaxial four-mirror optical system with a field bias with a focal length of 7050 mm, F-number of 10.8, field of view of 1.2°, and spectral range of 450-800 nm is designed. By combining mathematical modeling and ray tracing, the offset of the camera interior orientation elements caused by the misalignment of the secondary mirror is derived. The simulation results show that the maximum relative error does not exceed 2.119%. Besides, a desensitization design method based on the magnification parameter control method is proposed, and the results show that the sensitivity of camera interior orientation elements to the secondary mirror is reduced, indicating the effectiveness of the system desensitization design, which is of great significance for the improvement of camera accuracy.

On Pinning Linear and Adaptive Synchronization of Multiple Fractional-Order Neural Networks With Unbounded Time-Varying Delays.

In this article, the synchronization of multiple fractional-order neural networks with unbounded time-varying delays (FNNUDs) is investigated. By introducing a pinning linear control, sufficient conditions are provided for achieving the synchronization of multiple FNNUDs via an extended Halanay inequality. Moreover, a new effective adaptive control which applies to the fractional differential equations with unbounded time-varying delays is designed, under which sufficient criteria are presented to ensure the synchronization of multiple FNNUDs. The introduced control in this article is also workable in traditional integer-order neural networks. Finally, the validity of obtained results is demonstrated by a numerical example.

Cluster Synchronization of Multiple Fractional-Order Recurrent Neural Networks With Time-Varying Delays.

This article focuses on the cluster synchronization of multiple fractional-order recurrent neural networks (FNNs) with time-varying delays. Sufficient criteria are deduced for realizing cluster synchronization of multiple FNNs via a pinning control by applying an extended Halanay inequality applicable for time-delayed fractional-order differential equations. Moreover, an adaptive control applicable for the synchronization of fractional-order systems with time-varying delays is proposed, under which sufficient criteria are derived for realizing cluster synchronization of multiple FNNs with time-varying delays. Finally, two examples are presented to illustrate the effectiveness of the theoretical results.

Optical design of a cooled mid-wave infrared off-axis three-mirror system with a low F-number and wide field of view.

Infrared imaging systems with a wide detection scale, excellent precision, and high resolution are playing an increasingly important role in many fields. Compared with uncooled infrared detectors, the cooled infrared detectors have the advantages of high precision, long detection distance, and a high signal-to-noise ratio due to the low working temperature. In this paper, a cooled off-axis three-mirror mid-wave infrared (MWIR) optical system with a wide field of view (FOV), long focal length, and large relative aperture is designed. We first establish the initial coaxial three-mirror system based on the third-order Seidel aberration theory and then make the aperture stop offset to eliminate central obscuration. During the process of optimization, the FOV of the system is expanded stepwise, and it is not biased to avoid the extra aberration. In order to increase the optimizing degrees of freedom to improve the aberration elimination ability of the system, we apply the XY polynomial surface on the tertiary mirror (TM). After optimization, we finally obtain a cooled off-axis three-mirror MWIR optical system with a FOV of 5.3∘×4.4∘, a focal length of 500 mm, and a relative aperture of 1/2. The image quality of our system is excellent, and the aperture stop is between the focal plane and the TM, and coaxial with the focal plane, meeting the conditions of matching with the cold stop of the infrared detector. The tolerance analysis is also carried out, and the result shows that the system meets the requirements of practical fabrication and alignment.

Effects of I125 seed stent implantation combined with arterial infusion chemoembolization on tumor markers, p53 expression, and prognosis in patients with cholangiocarcinoma.

Cholangiocarcinoma is a common malignant tumor. Advanced treatment is difficult and the prognosis is poor. It is of great significance to find an effective method to treat cholangiocarcinoma and improve the prognosis of patients. Therefore, 78 patients with cholangiocarcinoma treated in our hospital were divided into group A and group B according to different treatment methods. The clinical effect, bilirubin, tumor size, bile duct patency time, tumor marker level To evaluate the therapeutic effect of I125 seed stent implantation combined with arterial infusion chemoembolization in patients with cholangiocarcinoma. The results showed that I125 seed stent implantation combined with TACE in the treatment of patients with cholangiocarcinoma can play an obvious clinical effect, effectively reduce the level of tumor markers and p53, reduce tumor lesions, improve the survival rate of patients, and play an important role in tumor treatment.