Muammer Nurduhan’s Post

World’s Most Advanced Megaproyects! #part1 ELT - Extremely Large Telescope not the most initiative name; the project is half way finish to be ready in 2027. Ocean Cleanup - System 03 as this structure is known, has a U - shaped barrier which runs for a total of 2.2km. #megaprojects #construction #engineering

In this blog post, we will explore the technology behind the 100 amp hour deep cycle marine battery and why it is the preferred choice for boaters https://lnkd.in/e__TWWDP

If you are interested in the application of Satellite derived shoreline (SDS) data in equilibrium model calibration, then I believe you will find our paper in Coastal Engineering journal quite interesting. My co-authors Bruno Castelle, Vincent Marieu, Déborah Idier and I, explored the challenges and opportunities offered by optical satellite imagery to provide useful information for equilibrium shoreline model calibration on a cross-shore transport dominated site. Through a series of numerical experiments, we investigated the application of alongshore averaged, uncorrected SDS timeseries with large errors and seasonal/interannual patterns barely depictable, in the calibration of a data driven equilibrium shoreline model at a high energy meso-macrotidal beach, assuming no a priori knowledge of the site. Though further validation is needed, we believe that the present work opens new perspectives in modelling, understanding and predicting sandy shoreline change in sites lacking field data. The full article is available with open access at the link below. Please have a look and let us know what you think :) . https://lnkd.in/ePzGkWxQ

Vulnerability Heatmapping in Debris Management | Journal of Management in Engineering | Vol 40, No 4 https://lnkd.in/ecXym8S6

Underwater acoustics is a specialized field within marine engineering that focuses on the propagation of sound waves in aquatic environments. One of the primary challenges in this domain is the issue of impedance mismatches, which occur due to the significant differences in the acoustic properties of air and water. Acoustic impedance refers to how much resistance a medium offers to sound wave transmission. Since air and water have vastly different densities and sound speeds, sound waves behave very differently when moving between these two environments. In marine engineering systems such as sonar, which relies on the transmission and reflection of sound waves to detect and identify objects underwater, these impedance mismatches can cause sound waves to reflect or scatter, leading to signal distortion or energy loss. This undermines the accuracy and effectiveness of sonar systems. To mitigate this, engineers develop strategies to minimize these mismatches. This might involve designing special transducers that are optimized to efficiently transfer sound energy from one medium to another or using impedance-matching layers that reduce reflection at the interface between air and water. By carefully managing these acoustic transitions, sonar systems can achieve clearer, more reliable sound transmission, essential for tasks like navigation, object detection, and underwater communication. #UnderwaterAcoustics #MarineEngineering #SonarTechnology #AcousticImpedance #SoundPropagation #MarineInnovation #AcousticEngineering #UnderwaterDetection #MarineScience Source: https://lnkd.in/d38JzKAg

🌊Experience the exceptional capabilities of the #HydroBoat1200 up close. With its sleek design and #ADCP integration, the HydroBoat 1200 #USV promises a revolution in ensuring navigational safety, supercharging efficiency, and cutting operational costs. 🌏 Don’t miss the boat on innovation – join us to see how the HydroBoat 1200 is charting a new course for maritime operations. Your journey into the depths of waterway wisdom starts here! Set sail for details: bit.ly/3PNFZfE #satlab #greaterbayarea #hydroboat1200 #USV #HydrographicSurveys #WaterDepth #SeabedFeatures #SurveyEquipment #HydrographicCharts #Mapping #ProjectPlanning #Oceanography #MarineScience #OceanMapping #UnderwaterExploration #NavigationalSafety #EnvironmentalMonitoring #CoastalManagement #MarineEngineering #OceanTechnology #GeospatialMapping #AquaticResearch #MaritimeIndustry

Did you know that several international organizations are developing uncrewed vessels to perform various types of underwater operations, such as bathymetric surveys? Canada's marine sector boasts deep roots in the development of uncrewed vessels. For example, B.C.-based organizations have been driving innovation, testing and deploying autonomous surface and subsurface craft, both locally and globally for several years. Join us for the Canadian Forum for Maritime Autonomous Surface Ships’ (CFMASS) next webinar on April 11, from 2pm to 3:30pm Eastern time, to learn more about research and development trends to enable MASS in Canadian waters. Hosted by us and Transport Canada - Transports Canada, presenters will include: - Jelmer de Winter, Regional Commercial Strategy MAI & Uncrewed Solutions Manager, Fugro speaking on “Subsea Inspection using uncrewed surface vessels – Changing the operational model of asset inspection.” - Jason Goldsworthy, Ph.D., P.Eng.; Executive Director – COAST (Centre for Ocean Applied Sustainable Technologies), speaking on “Autonomous Marine Systems in Pacific Canada - the past, present and future.” The presentations will be followed by a question-and-answer period. Join us on Zoom on April 11: https://ow.ly/So6W50Rbpp2 Meeting ID: 814 8388 1322 If you have any questions or require assistance accessing the webinar, please contact piscesrpm@piscesrpm.com. #DiscoverTheNRC #CanadianTech #NRCOceanResearch

Curious about the science behind the Newterra Triton's effectiveness? For a free PDF to learn about the benefits of aeration and mixing, click here: https://hubs.la/Q02gh5kY0

Three-dimensional acoustic propagation of noise from impact pile driving in a complex costal environment and its effects on large yellow croaker (Pseudosciaena crocea) - Frontiers in Marine Science: The effects of high-intensity impulsive noise generated by pile driving on fish are a major concern in environmental impact assessments. Numerical acoustic models are essential for predicting underwater-acoustic-related problems in complex coastal environments prior to offshore construction. However, underwater noise modeling for impact pile driving has often been performed using simplistic propagation models that are inadequate for three-dimensional (3D) environments. A 3D parabolic equation method (PE) was established in this study to better predict broadband transmission loss (TL) from impact pile driving in complex coastal environments and its influence on the large yellow croaker (Pseudosciaena crocea). The effects of 3D propagation were investigated using two realistic scenarios with different bathymetric complexities. The values and attenuation rate of the broadband TL for the steeply sloped bottom were significantly greater than those for the flat and weakly varying bottoms over 3 km. At a water depth of 5 m, a difference of approximately 10 dB was observed between the two TL scenarios at a distance of 4.5 to 5 km. The simulation results are in reasonable agreement with the field measurement data, with a difference of less than 3 dB. The zones of behavioral response and injury in the large yellow croaker were estimated using the For3D model. The results showed that the effects of the noise generated by the impact pile driving on the large yellow croaker were evident and three-dimensional. Therefore, 3D propagation effects should be considered when analyzing the influence of underwater noise on marine animals. https://lnkd.in/eJ-p_bWk

We’re back with PART 2 with @JamesMosimann of Reality Capture Network and our own Kirill Safrin, P.E.. Here Kirill talks about why we employ the use of terrestrial scanning at Chief Engineering. If you missed Part 1, be sure to check out our post feed here: https://vist.ly/3mii5sj #staytuned for Part 3! #laserscanning #terrestrialscanning #reverseengineering #webinar #accuracy #precision #structuralscanning