Sparse wavefield reconstruction based on Physics-Informed neural networks.

In recent years, the widespread application of laser ultrasonic (LU) devices for obtaining internal material information has been observed. However, this approach demands a significant amount of time to acquire complete wavefield data. Hence, there is a necessity to reduce the acquisition time.

Response of Soil Bacteria to Short-Term Nitrogen Addition in Nutrient-Poor Areas.

Increasing nitrogen (N) addition induces soil nutrient imbalances and is recognized as a major regulator of soil microbial communities. However, how soil bacterial abundance, diversity, and community composition respond to exogenous N addition in nutrient-poor and generally N-limited regions remains understudied. In this study, we investigated the effects of short-term exogenous N additions on soil bacterial communities using quantitative polymerase chain reaction (PCR) and Illumina Miseq sequencing in an in situ N addition field experiment.

Unique Characteristics of Pulse-Echo Sensing Systems for Ultrasonic Immersion Testing in Harsh Environments.

Ultrasound is an excellent way to acquire data that reveal useful information about systems operating in harsh environments, which may include elevated temperature, ionizing radiation, and aggressive chemicals. The effects of harsh environments on piezoelectric materials have been studied in much more depth than the other aspects of ultrasonic transducers used in pulse-echo mode. Therefore, finite element simulations and laboratory experiments are used to demonstrate the unique characteristics of pulse-echo immersion testing.

Copper peroxide-loaded lignin-based non-isocyanate polyurethane foam for wound repair applications.

Wound healing is a complex process and the mechanism of the tissue repair process involves many complex steps: inflammation, proliferation, and maturation. Wounds can be divided into two main categories: acute and chronic wounds. Non-healing wounds usually follow a bacterial infection.

Itaconic Acid Oligomers for Electrostatically Spun Degradable Implantable Biobased Polyurethane.

Developing implantable medical materials with excellent comprehensive performance has important practical applications. Cardiovascular and bile ducts are characterized by various forms of diseases and high morbidity and mortality. One of the effective treatment modalities for such diseases is replacement surgery.