Objective: Provide an overview of range of variability (ROV) concepts and their application in landscape planning and management. Highlight the use of historic range of variability (HRV) in establishing context for the current landscape condition and its potential role in guiding specification of desired future landscape condition. Topics covered: 1. Origins of range of variability (ROV) concep...

Transferring data between the ocean surface and an operating Autonomous Underwater Vehicle (AUV) is a difficult and slow process. Current methods of un-tethered submersible communication have either a very limited data transfer rate or a prohibitively short range. In this paper, students of the University of Florida propose a new data transfer method that will supply the high data rates of a te...

This paper presents the development and modeling of low cost underwater Remotely Operated Vehicle (ROV) for depth control using system identification technique. The ROV was developed by the Underwater Technology Research Group (UTeRG). For Unmanned Underwater Vehicle (UUV), the most crucial issue is the control system. It is needed for the ROV to perform several underwater applications and task...

Norovirus (NoV) and Rotavirus (RoV) are the major cause of outbreaks and sporadic gastroenteritis worldwide. NoV has become the leading cause of acute gastroenteritis (AGE) in all age groups.1 The aim of the study was to identify NoV infection, to know the clinical characteristics and its association with RoV infection in children aged less than five years hospitalized at the Havana Centre Paed...

This paper presents a control scheme for obtaining high maneuverability of underwater robot manipulators mounted on a remotely operated vehicle (ROV). The motions of an underwater manipulator can affect the attitude and position of the ROV which should remain stationary in seabed operation. To compensate for the dynamic effect of the underwater manipulator on the ROV, force-torque (F/T) informa...

In this paper, the design of the overall architecture and the development of specific components of a supervised, automatic system for guidance of an ROV are described. Basically, automation is achieved by inserting a PC, equipped with A/D-D/A boards, in the operator/ROV loop. In this way, the original configuration of the ROV manual guidance system is substituted by a more versatile, user-frie...

Adjuvants potentiate antigen-specific protective immune responses and can be key elements promoting vaccine effectiveness. We previously reported that the Onchocerca volvulus recombinant protein rOv-ASP-1 can induce activation and maturation of naïve human DCs and therefore could be used as an innate adjuvant to promote balanced Th1 and Th2 responses to bystander vaccine antigens in mice. With ...

In this paper the investigation of Adaptive Single Input Fuzzy Logic Controller (ASIFLC) as robust control of an Unmanned Underwater Vehicle (UUV). Robust control methods are designed to function properly with a present of uncertain parameters or disturbances. Robust control methods aim to achieve robust performance and stability in the presence of bounded modeling errors. The UUV applied in th...

ROV (Remotely Operated Vehicle) is applied widely currently which is an important tool for detecting in the water, salving on the ocean floor and resources surveying in the ocean. However it is common for ROV that is affected by surging and altering barycenter in the practice, and it is easy for pitching usually, and then ROV is low efficiency. Aiming at the problem, we designed a system of pit...

In the early 1990s, Houston-based Anadarko Petroleum Corporation outbid competitors for the Tanzanite block in the Gulf of Mexico. It found oil and gas there in 1998 and was producing within three years. The Tanzanite discovery is significant not so much for an abundance of oil and gas, but that in bidding for it Anadarko broke with industry tradition. Rather than using only conventional discou...