Crushing Behaviors and Energy Absorption Evaluation Methods of Hexagonal Steel Tubular Columns with Triangular Cells.

Under axial compression, multi-cell tubes are considered more effective than single-cell tubes. Regular hexagonal multi-cell tubes (HMT) were designed, tested, and analyzed by finite element modeling (FEM). The crushing mechanism of the HMT was revealed by compression testing and FEM.

Upconversion nanoparticles coupled with hierarchical ZnInS nanorods as a near-infrared responsive photocatalyst for photocatalytic CO reduction.

Developing near-infrared responsive (NIR) photocatalysts is very important for the development of solar-driven photocatalytic systems. Metal sulfide semiconductors have been extensively used as visible-light responsive photocatalysts for photocatalytic applications owing to their high chemical variety, narrow bandgap and suitable redox potentials, particularly the benchmark ZnInS. However, their potential as NIR-responsive photocatalysts is yet to be reported.

Improved technology using transmitting currents with short shutdown times for surface nuclear magnetic resonance.

Surface nuclear magnetic resonance (SNMR) technology is widely used in the detection of groundwater. However, the dead time arising from the coupling effect of the transmitting circuit on the receiving coil results in partial or complete loss of the SNMR signal. This situation is especially unfavorable for the detection of short relaxation time targets.

A four-microorganism three-step fermentation process for producing medium-chain-length polyhydroxyalkanoate from starch.

In this study, a four-microorganism three-step fermentation process was established for producing medium-chain-length polyhydroxyalkanoate (mcl-PHA) from starch, which was used as the sole carbon source. The four microorganisms used for this process were , L2612, , and KT2440-. The initial carbon source starch concentration was set to 30 g/L, the maximum glucose concentration reached 17.

A lock-in amplifier modeling recovery method to extract the surface nuclear magnetic resonance signal from residual noise.

Surface nuclear magnetic resonance (SNMR) could provide direct insights for hydrological investigations but is often limited because of its low signal-to-noise ratio. Many types of residual noise remain after denoising procedures, including despiking, power harmonic noise cancellation, and random noise attenuation. This residual noise prevents the detection of valid signals, especially in strong noise environments, such as cities and industrial areas.

Production of medium chain length polyhydroxyalkanoate from acetate by engineered Pseudomonas putida KT2440.

Pseudomonas putida was metabolically engineered to produce medium chain length polyhydroxyalkanoate (mcl-PHA) from acetate, a promising carbon source to achieve cost-effective microbial processes. As acetate is known to be harmful to cell growth, P. putida KT2440 was screened from three Pseudomonas strains (P.

Design of a Matching Network for a High-Sensitivity Broadband Magnetic Resonance Sounding Coil Sensor.

The magnetic resonance sounding (MRS) technique is a non-invasive geophysical method that can provide unique insights into the hydrological properties of groundwater. The Cu coil sensor is the preferred choice for detecting the weak MRS signal because of its high sensitivity, low fabrication complexity and low cost. The tuned configuration was traditionally used for the MRS coil sensor design because of its high sensitivity and narrowband filtering.