Prestressed high-strength concrete (PHC) pipe pile has the advantages of high single bearing capacity, a wide range applications, good driving resistance, fast construction speed, etc. It been widely used in high-rise buildings, bridges, ports, and other industries. The application extra-long PHC piles with length more than 50 m is increasing. However, there are few studies on drivability hamme...

The development of a robotic-driven maintenance solution capable of automatically maintaining reconfigurable vibrating screen (RVS) machine when utilized in dangerous and hazardous underground mining environment has called for the design of a multifunctional robotic end-effector capable of carrying out all the maintenance tasks on the RVS machine. In view of this, the paper presents a bio-inspi...

Geotechnical survey is an important prerequisite to the construction of offshore wind farms. However, impact underwater noises has not yet been studied in details. In this paper, we transmission from exploratory drilling (OED) at Xiamen port. The were categorized into three types: hammering (hammering down casings, which 180-mm diameter steel pipes), vibrating (vibration casings that had hammer...

Structures consisting of a single Si nanodot buried within an insulating nanometric ${\mathrm{SiO}}_{2}$ layer stacked between two layers show promising properties for room temperature operational single-electron transistors. Moreover, such structures are highly compatible with modern complementary metal-oxide semiconductor technologies. Metastable ${\mathrm{SiO}}_{\mathrm{x}}$ phase separates ...

We introduce Flip Feng Shui (FFS), a new exploitation vector which allows an attacker to induce bit flips over arbitrary physical memory in a fully controlled way. FFS relies on hardware bugs to induce bit flips over memory and on the ability to surgically control the physical memory layout to corrupt attacker-targeted data anywhere in the software stack. We show FFS is possible today with very...

But over the past 150 years, the noise levels in our oceans have increased significantly. This is due to human activity. The propeller noise from shipping has raised the baseline for low-frequency ambient ocean sound worldwide. There is noise produced by undersea construction, such as pile-driving (e.g., hammering posts into the seafloor, such as for docks or drilling platforms). Sonar is used ...