history of underwater diving dates back to antiquity. breath-hold technique in diving was known to the ancient nations. however, deep diving progressed only in the early decades of the 19 th century as the result of advancements in efficient underwater technologies which subsequently led to invention of sophisticated sets of scuba diving in the 20 th century. currently, diving is performed for ...

Mechanization is necessary for safer and more efficient underwater construction work in port areas. Teleoperated underwater construction machines are under developing. The problem is that conventional TV camera system is useless in water because of turbidity. Haptic information is introduced as the aid to control construction machines substituting for visual information. Components of control t...

The main goal of this paper was to design and construct a hybrid autonomous underwater glider (HAUG) with torpedo shape, size 230 cm in length 24 diameter. control, navigation, guidance system were executed simultaneously using Udoo X86 minicomputer as the server three BeagleBone Black single-board computers clients. simulations showed controlled horizontal speed 0.5 m/s AUV mode 0.39 0.51 glid...

1. This paper summarises recent progress and future work relating to the development, construction and testing of a device that sets hooks several metres underwater to avoid detection by seabirds. 2. The underwater setter is a stern-mounted hydraulically-driven device. It comprises components that are fixed to the vessel and a component (a capsule that holds the baited hook) that is driven down...

This paper presents an automated approach to correcting for colour inconsistency in underwater images collected from multiple perspectives during the construction of 3D structure-from-motion models. When capturing images underwater, the water column imposes several effects on images that are negligible in air such as colour-dependant attenuation and lighting patterns. These effects cause proble...

The new territories exploration for housing construction and production facilities within the country increase in export of hydrocarbons require constant development improvement pipeline transport. There are often cases when need network crossing by various obstacles is recognized as only possible design solution economically reasonable, among most difficult which there water bodies. Natural wa...

History of underwater diving dates back to antiquity. Breath-hold technique in diving was known to the ancient nations. However, deep diving progressed only in the early decades of the 19th century as the result of advancements in efficient underwater technologies which subsequently led to invention of sophisticated sets of scuba diving in the 20th century. Currently, diving is performed for va...