The development of alternative energy sources has attracted worldwide interest given the adverse effects fossil fuels on global climate as well their unsustainability. This study examines feasibility marine power generation off East Coast Trinidad and Tobago focuses mainly Vertical Axis Marine Turbine generator. At this location where data was collected, measurement depth varied between 3 to 10...

The Adaptable Monitoring Package (AMP), along with a remotely operated vehicle (ROV) and custom tool skid, is being developed to support near-field (≤10 meters) monitoring of hydrokinetic energy converters. The AMP is intended to support a wide range of environmental monitoring in harsh oceanographic conditions, at a cost in line with other aspects of technology demonstrations. This paper, whic...

In this paper it is presented a volcanic seismic acquisition equipment that has been developed together with an energy harvesting system, based on piezoelectric elements, in order to work in autonomous conditions. The energy harvesting system has been developed to convert the wind or marine currents energy into electrical energy through a new method based on piezoelectrics. For the deployment o...

the qom formation in ghohrud area, have been investigated in order to determine its biostratigraphy and palaeoecology. the thickness of qom formation is 325 meters at the study area and consists of thin, medium to thick bedded and massive limestons. they underline on eocene volcanic with disconformably and its upper boundary is overlain by alluvium. based on thin section studies 14 genera and 2...

Marine renewable energy is emerging as one of the fast-growing industry in the last decades, as modern society pushes for technologies that can convert energy contained from winds, waves, tides and stream flows. The implementation of renewable energy technologies impose high demands on both structural and environmental engineering, as the energy converters have to work under extreme conditions ...

Current mitigation levels for noise transients impinging on marine mammals are specified by rms pressures. The rms measure critically relies upon choosing the size of averaging window for the squared pressures. Derivation of this window is not standardized, which can lead to 2-12 dB differences in rms sound pressure for the same wave forms. rms pressure does not represent the energy of the nois...

effects of sound on Aquatic life Current expansion of offshore industrial activities has led to concern about the impact of man-made sounds upon marine animals (Southall et al., 2007; Hastings, 2008; Popper and Hawkins, 2012, 2014). Offshore oil and gas exploration and developments, wind farm construction and operations, other renewable energy sources, dredging, construction activities, naval s...

COMPARING MANUAL AND SEMI-AUTOMATIC UNDERWATER IMAGERY ANALYSIS 1 APPROACHES FOR HARD BOTTOM BENTHIC MACROFAUNA MONITORING AT OFFSHORE 2 RENEWABLE ENERGY INSTALLATIONS 3 4 Aleksej Šaškov, Thomas G. Dahlgren, Yuri Rzhanov, Marie-Lise Schläppy 5 1 Marine Science and Technology Center, Klaipėda University, Lithuania 6 2 Uni Research, Bergen, Norway 7 Center for Coastal and Ocean Mapping/Joint Hydr...

The recognition of a new family of rhodopsins in marine planktonic bacteria, proton-pumping proteorhodopsin, expanded the known phylogenetic range, environmental distribution, and sequence diversity of retinylidene photoproteins. At the time of this discovery, microbial ion-pumping rhodopsins were known solely in haloarchaea inhabiting extreme hypersaline environments. Shortly thereafter, prote...