miscible barrier ? uid heavier than seawater (sg=1.026) and lighter than the battery electrolyte (sg=1.265). The original cell vent cap was screwed into the top of the riser pipe to vent the gases associated with charging. Wires were soldered to the lead (Pb) posts. The lead-acid battery was additionall
TECH FEATURE IMR There are also weaknesses in terms of accuracy because of FiGS Operations and Bene? ts signal noise and the ability to detect small ? eld gradients. In Conventional approaches to evaluating cathodic protection this process there is a risk that possible issues like coating (CP)
TECH FEATURE IMR Image courtesy FORCE Technology OPTIMIZING CATHODIC PROTECTION SURVEY USING NON-CONTACT SENSORS By Svenn Magen Wigen, FORCE Technology he principle behind sacri? cial anodes, which are water structures, reducing the need for frequent repairs and used to safeguard underwater pipelines
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SIMULATION "A simulated vessel ? ooding can help teams work together to solve the challenge using different systems on the bridge." – Jussi Siltanen, Lead, "The gami? cation of Product Marketing, learning makes it fun." Safety Solutions at NAPA – Captain Pradeep Chawla, Founder, MarinePALS Image
Book Review Approach to Meeting Underwater Radiated Noise Limits Def ned By Raymond Fischer uantitative underwater radiated noise limits will construction inspections, 5) possible training with respect to be developed shortly by IMO, and/or countries salient design/construction essentials, 6) compliance
Feature Navigation cables, 9 miles of cables connecting substations and up to blurred, undependable information for vessel crews. two export transmission cables with “associated secondary In the fairways Notice, the USCG references the NAS cable protection” (text is from the permit) within a 42-mile-
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TECH FEATURE Ammonia and the 15,00 A project initiated by Seaspan Corporation and the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping (MMMCZCS) has set out to develop a design for a large 15,000-TEU ammonia-fueled container vessel. Image Seaspan Corporation/Foreship By Greg Trauthwein orking with
Feature Marine Simulation “We enable workers to develop critical worksite-speci? c competencies by engaging them in challenging simulation training programs,” said Clayton Burry, vice president of sales at Virtual Marine. “We’ve been involved heavily in the research associated with simulation as well
SHOW PREVIEW OCEANOLOGY INTERNATIONAL 2024 All images courtesy Oceanology International • ANB Sensors, developers of revolutionary, calibration updates on information, meeting customers, meeting poten- free pH sensors for ocean monitoring; tial suppliers, hearing what’s happening in the industry – you •
JIM MCNEILL: LEADING EARTH’S CITIZEN WARRIORS ACROSS THE SEA By Celia Konowe n the face of intensifying climate change and McNeill, former scientist and internationally renowned associated environmental unknowns, one world British explorer, has more than 36 years of experience travel- explorer has
Editorial bout 12 years ago I was invited to the home of then Chief of Naval Operations, Admiral Gary A Roughead, for “a discussion on unmanned underwater systems.” When I ? rst received the invite, my ? rst thought was © Jason Adelaars MBARI 2023 www.marinetechnologynews.com “how did I get on this
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MEET THE CTO has grown to 90 people across several something that is scalable.” fuels, resulting in an overall reduction world regions, and this technical talent Next the CMB.TECH team targeted of 65% of traditional fuel consump- base is central to Campe completing the Crew Transfer Vessel (CTV) used
SEAFLOOR MAPPING All images courtesy Curtin University Digital 3D model of WA Shipwreck he underwater remains of a ship built in Fremantle in reconstruction,” Professor Woods said. 1876 and which sunk off the coast several years later can “The new 3D model of the Star allows the wreck site to be now be
s policy makers and energy developers look to de- power, 10 more HVDC cables and associated converters at velop and interconnect large offshore wind proj- several hundreds of millions of US dollars each would be re- ects in the most economically ef? cient and least quired if the 1,200 MW single source
lows us to undertake more science. More science means more I recognize I have given the characteristically “political” understanding of our ocean and this is a good thing. When we view here; the pro’s, the con’s and no de? nitive answer. Let step into the world of data visualization through AI then
... WHAT DOES IT MEAN FOR SCIENCE? By Huw Gullick, Associate Director, NOC Innovations y family and I have recently moved house. (and here is me thinking that he could have shelves for all I’m at that classic time in life when needs are his Lego). Intrigued, but secretly thinking I could catch him
Authors & Contributors Frank Ewing Gullick Konowe Skucas Lundquist Paradise Strachan Ewing Konowe the changing landscape of the electric Tom Ewing is a freelance writer Celia Konowe is from Reston, Va., and industry, advising clients regarding specializing in energy and environmental has a bachelor’s
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McAllister Towing’s new tug Jane McAllister entered service this summer as one of the most advanced and powerful shipdocking tractor tugs operating in the Port of Virginia. Constructed by Washburn & Doughty Associates, Inc. in East Boothbay, Maine, the 6,770-horsepower vessel packs a punch, equipped
remains a recognized ? oating nuclear facility by the NRC. ing was well attended with congressional support, and the The decommissioning continues in capable hands with brie? ng was followed by an American Bureau of Shipping members of the U.S. Maritime Administration who have (ABS) Global Forum –
gains from vessel sales by excluding from taxable income any the United States or, if manufactured outside the United amounts from such sources that are deposited into a CCF States, not produced in the United States in suf? cient and account established through a contract with MARAD. Earn- reasonably