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New and Different to Come Your Way with Regard to Our Upcoming 2019 Sea Technology Buyers Guide/Directory
WATCH FOR SOMETHING NEW AND DIFFERENT TO COME YOUR WAY WITH REGARD TO OUR UPCOMING 2019 SEA TECHNOLOGY BUYERS GUIDE/DIRECTORY PROCEED TO MAGAZINE from Surface to Seabed Position / Heading Weather Monitoring Electromagnetic / Smart™ Depth Sensor Ultrasonic Speed Acoustic Communications (ACOMMs) ADCP / DVL Acoustic Communications (ACOMMs) Altimeter Side Scan Forward-looking Sonar Multibeam Sonar Collecting and connecting from surface to seafloor, AIRMAR and MSI push the boundaries of ultrasonic technology to deliver multi-sensor and array solutions that ensure the highest level of data integrity. Consult with our engineering teams to source or design the perfect combination of sensors to achieve your mission’s goals. AIRMAR.COM MSITRANSDUCERS.COM 2 ST | June 2018 www.sea-technology.com High Performance Cable Handling Systems RESEARCH INSTITUTIONS • MILITARY • GOVERNMENT AGENCIES # Custom and Standard Configurations # Mil-Spec, ABS, DNV and 46CFR Certifications # Easy to Operate and Maintain InterOcean Systems has been supplying specialized winches and cable handling systems for over 45 years. Let our experienced application engineers assist you in reviewing and developing performance specifications for your specialized application. Contact us to discuss your oceanographic winch and cable handling system needs! InterOcean Systems, LLC Tel. (858) 565-8400 • Fax (858) 268-9695 www.interoceansystems.com An affiliate of Delmar Systems, Inc. ANY APPLICATION • ANY LOAD • RUGGED AND RELIABLE www.sea-technology.com June 2018 | ST 3 The SeaBat T-series Modular, compact multibeam sonar family that grows with your business The unique modular design concept of the SeaBat T-series allows you to configure exactly the sonar survey system for the job at hand. -
The Coral Reef Another, Budding New Members As They Go, Near St
Closeup on a Caribbean Reef view of St. Croix and the reef areas, take the Construction of a typical aquatic housing Surpassing even the familiar beauty of the Virgi trail to the top of Buck Island. The National project begins when the free-swimming coral Islands is the world of the tropical reef. At its Park Service provides picnic tables, charcoal larva attaches itself to some firm surface, be best, this world is incredibly colorful and variec grilles, a small house for changing clothes, a comes a full-fledged polyp, and begins secreting Intensely alive, the reef is nothing less than a sheltered pavilion, and restrooms. its own limy exterior skeleton. This single polyp joy to the senses. Swimming and snorkeling in and all its many descendants, building on one the crystal-clear lagoon just off Buck Island The Coral Reef another, budding new members as they go, near St. Croix is an ideal way to see one of the Of all the reef residents, the corals have the erect their communal skeleton outward and up best Caribbean reefs firsthand. Well suited to most extraordinary habits; these are the archi ward toward the all-important rays of the sun. beginner and expert alike, Buck Island Reef tects, the builders, and the landlords of the reef. Colony after colony in hundreds of shapes and offers shallow water snorkeling above the inner Ranging in size from a pinhead to a raindrop, sizes ultimately create the reefs that decorate reef and deep water exploring along the outer billions of tiny master builders, called polyps, the ocean floor—spires, trees, shrubs, stone- barrier. -
Notes on Diving in Ancient Egypt
A Brief History of Underwater Enterprise and Exploration The incentives to risk one’s life underwater from the earliest records of diving: 1) Subsistence and general aquatic harvest 2) Commerce/salvage 3) Warfare A sponge diver about to take the plunge, Classical Greece ca. 500 BCE The beginnings: subsistence in Ancient Egypt: skin divers netting fish in the Nile th Tomb of Djar, 11 Dynasty (ca. 2000 BCE) ‘Pull out well! (It is) a Happy day! Measure you, measure you, for you, good great fishes’ Text and image from the tomb of Ankhtifi (ca. 2100 BCE) The beginnings: other kinds of aquatic/underwater harvest: mother of pearl (left) and sponge diving (right) Mesopotamia (southern Iraq, ca. 2500 BCE) Classical Greece (ca. 500 BCE) The so-called ‘Standard of Ur’: a mosaic of lapis lazuli A sponge diver about to take the (from the exotic region of Afghanistan) and mother of plunge with a knife and a sack, the pearl (from the exotic source of a seabed), deposited in jar was also deposited in an elite tomb an elite tomb in Mesopotamia The beginnings: in search of exotic and high value things (things difficult to access/procure) Epic of Gilgamesh (composed in Mesopotamia no later than ca. 2100 BCE) records a heroic dive after a ‘plant of immortality’ on the seabed ‘He tied heavy stones *to his feet+ They pulled him down into the deep [and he saw the plant] He took the plant though it pricked his hands He cut the heavy stones from his feet The sea cast him up upon the shore’ The value of mother of pearl and sea sponge resides, in part, in the process of procuring them The beginnings: salvaging lost cargoes (lost valuable things) Scyllias and his daughter Hydna: the first professional divers known by name, famed for salvaging huge volumes of gold and silver (tribute and booty) from a Persian fleet in the Aegean that lost many ships in a storm (ca. -
History of Scuba Diving About 500 BC: (Informa on Originally From
History of Scuba Diving nature", that would have taken advantage of this technique to sink ships and even commit murders. Some drawings, however, showed different kinds of snorkels and an air tank (to be carried on the breast) that presumably should have no external connecons. Other drawings showed a complete immersion kit, with a plunger suit which included a sort of About 500 BC: (Informaon originally from mask with a box for air. The project was so Herodotus): During a naval campaign the detailed that it included a urine collector, too. Greek Scyllis was taken aboard ship as prisoner by the Persian King Xerxes I. When Scyllis learned that Xerxes was to aack a Greek flolla, he seized a knife and jumped overboard. The Persians could not find him in the water and presumed he had drowned. Scyllis surfaced at night and made his way among all the ships in Xerxes's fleet, cung each ship loose from its moorings; he used a hollow reed as snorkel to remain unobserved. Then he swam nine miles (15 kilometers) to rejoin the Greeks off Cape Artemisium. 15th century: Leonardo da Vinci made the first known menon of air tanks in Italy: he 1772: Sieur Freminet tried to build a scuba wrote in his Atlanc Codex (Biblioteca device out of a barrel, but died from lack of Ambrosiana, Milan) that systems were used oxygen aer 20 minutes, as he merely at that me to arficially breathe under recycled the exhaled air untreated. water, but he did not explain them in detail due to what he described as "bad human 1776: David Brushnell invented the Turtle, first submarine to aack another ship. -
"Aquarius" Undersea Habitat As an Analog for Long- Duration Space Flight
https://ntrs.nasa.gov/search.jsp?R=20110011365 2019-08-30T15:38:42+00:00Z Source of Acquisiti on NASA Jolmson Space Center The NEEMO Project: A Report on how NASA Utilizes the "Aquarius" Undersea Habitat as an Analog for Long- Duration Space Flight. Bill ToddlUnited Space Alliance Marc Reagan/NASA NEEMO Project Leads Spaceflight Training, NASAJJSC October, 2003 Abstract NEEMO is the NASA Extreme Environment Mission Operations, a cooperative project between NASA and the National Oceanic and Atmospheric Administration (NOAA). NEEMO was created and is managed by the Mission Operations Directorate at the Johnson Space Center in Houston, Texas. On the NOAA side, the National Undersea Research Center (NURC) in Key Largo, FL, with the help of the University of North Carolina at Wilmington, manages and operates the Aquarius Program. NEEMO was developed by astronaut training specialists to utilize an undersea research habitat as a multi-objective mission analog for long-duration space flight. Each mission was designed to expose astronauts to extreme environments for training purposes and to research crew behavior, habitability, and space analog life sciences. All of this was done much in the model of a space mission utilizing specific crew procedures, mission rules and timelines. Objectives of the missions were very diverse and contained many of the typical space mission type activities such as EV As (also known as extra vehicular activities), in-habitat science and research, and educational, public outreach, and media events. Five missions, dubbed NEEMO 1-5, were conducted between October 2001 and July 2003, the longest of which (NEEMO 5) lasted 14 days. -
No Limits Freediving
1 No Limits Freediving "The challenges to the respiratory function of the breath-hold diver' are formidable. One has to marvel at the ability of the human body to cope with stresses that far exceed what normal terrestrial life requires." Claes Lundgren, Director, Center for Research and Education in Special Environments A woman in a deeply relaxed state floats in the water next to a diving buoy. She is clad in a figure-hugging wetsuit, a dive computer strapped to her right wrist, and another to her calf. She wears strange form-hugging silicone goggles that distort her eyes, giving her a strange bug-eyed appearance. A couple of meters away, five support divers tread water near a diving platform, watching her perform an elaborate breathing ritual while she hangs onto a metal tube fitted with two crossbars. A few meters below the buoy, we see that the metal tube is in fact a weighted sled attached to a cable descending into the dark-blue water. Her eyes are still closed as she begins performing a series of final inhalations, breathing faster and faster. Photographers on the media boats snap pictures as she performs her final few deep and long hyperventilations, eliminating carbon dioxide from her body. Then, a thumbs-up to her surface crew, a pinch of the nose clip, one final lungful of air, and the woman closes her eyes, wraps her knees around the bottom bar of the sled, releases a brake device, and disappears gracefully beneath the waves. The harsh sounds of the wind and waves suddenly cease and are replaced by the effervescent bubbling of air being released from the regulators of scuba-divers. -
Sponge Fishing in Tarpon Springs, Florida Michael Suver University of South Florida, [email protected]
University of South Florida Scholar Commons Graduate Theses and Dissertations Graduate School January 2012 Environmental Change and Place-Based Identities: Sponge Fishing in Tarpon Springs, Florida Michael Suver University of South Florida, [email protected] Follow this and additional works at: http://scholarcommons.usf.edu/etd Part of the Geography Commons Scholar Commons Citation Suver, Michael, "Environmental Change and Place-Based Identities: Sponge Fishing in Tarpon Springs, Florida" (2012). Graduate Theses and Dissertations. http://scholarcommons.usf.edu/etd/4410 This Thesis is brought to you for free and open access by the Graduate School at Scholar Commons. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. Environmental Change and Place-Based Identities: Sponge Fishing in Tarpon Springs, Florida by Michael Suver A thesis submitted in partial fulfillment of the requirements for the degree of Master of Arts Department of Geography, Environment, and Planning College of Arts and Sciences University of South Florida Major Professor: Pratyusha Basu, Ph.D. M. Martin Bosman, Ph.D. Jayajit Chakraborty, Ph.D. Date of Approval: November 8, 2012 Keywords: climate change, Greek ethnicity, environmental geography, Gulf of Mexico Copyright © 2012, Michael Suver Acknowledgments I could not have completed this thesis without the strength of the Lord which has enabled me to lay aside all of my weight and finish the race set before me. I am also very thankful to Gabrielle, my fiancé who has been an encouragement and a comfort to get me through the writing process. -
The Amazon River Without Secrets
Geographic Society of Lima Jr. Puno 450, Lima; post office box 100-1176 Lima, Peru; phone (511) 4273723; (511) 4269930 e-mail: [email protected]; http://socgeolima.org Press Release THE AMAZON RIVER WITHOUT SECRETS Geographic Society of Lima resolves controversial hypotheses concerning the source of the Queen of all Rivers The mystery concerning the sources of the Amazon River, similar to the one concerning those of the Nile, has long been subject to never-ending speculations and academic disputes. The identification of the main river’s source section poses many difficulties for researchers, as all the hydrological criteria are rarely met at the same time. In the case of such a vast hydrographical system and such an important water artery as the Amazon River, the complications increase even more. Hydrologists believe that the stream which runs the most water, which is the longest, and who’s source lies highest above the sea level should be considered the main river. Equally important are criteria concerning the riverbed gradient, the basin activity or the morphology of the terrain. Also, the importance of culture is unquestionable. Sometimes the traditions preserved through history and the culture of a region are arguments influencing the choice of the main river. Since the time of Humboldt, the Marañón has been considered the source tributary of the Amazon River. In 1934 the geodesist Colonel Gerardo Dianderas formulated the insight that it would rather be the Ucayali as it is longer, of higher importance to the history of the region, navigable to a greater extend, and as it plays a more important economic role. -
18. Fluctuations in Productivity and Upwelling Intensity at Site 1083
Wefer, G., Berger, W.H., and Richter, C. (Eds.) Proceedings of the Ocean Drilling Program, Scientific Results Volume 175 18. FLUCTUATIONS IN PRODUCTIVITY AND UPWELLING INTENSITY AT SITE 1083 DURING THE INTENSIFICATION OF THE 1Ettwein, V.J., Stickley, C.E., Maslin, M.A., Laurie, E.R., Rosell-Melé, A., NORTHERN HEMISPHERE GLACIATION Vidal, L., and Brownless, M., 2001. Fluctuations in productivity and (2.40–2.65 MA)1 upwelling intensity at Site 1083 during the intensification of the Northern Hemisphere glaciation V.J. Ettwein,2,3 C.E. Stickley,2 M.A. Maslin,2 E.R. Laurie,2,3 (2.40–2.65 Ma). In Wefer, G., Berger, A. Rosell-Melé,4 L. Vidal,5 and M. Brownless6 W.H., and Richter, C. (Eds.), Proc. ODP, Sci. Results,175, 1–25 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/ publications/175_SR/VOLUME/ CHAPTERS/SR175_18.PDF>. [Cited YYYY-MM-DD] 2Environmental Change Research Centre, Department of Geography, University College London, 26 Bedford Way, London WC1H 0AP, United Kingdom. Correspondence ABSTRACT author: [email protected] 3Centre for Quaternary Research, Coastal upwelling regions play an important role in regulating the Department of Geography, Royal Holloway, University of London, partial pressure of CO2, because they are zones of intense productivity and therefore contribute considerably to the drawdown mechanism. Egham, Surrey TW20 0EX, United Kingdom. One of the major aims of Leg 175 was to develop an understanding of 4Quaternary Environmental Change the relationship between wind-driven upwelling intensity and surface Research Group, Department of water productivity. In this paper, such a relationship during the late Geography, University of Durham, Pliocene intensification of the Northern Hemisphere glaciation (INHG) Science Site, South Road, Durham ~2.54 Ma is examined. -
Optimal Breathing Gas Mixture in Professional Diving with Multiple Supply
Proceedings of the World Congress on Engineering 2021 WCE 2021, July 7-9, 2021, London, U.K. Optimal Breathing Gas Mixture in Professional Diving with Multiple Supply Orhan I. Basaran, Mert Unal compressors and cylinders, it was limited to surface air Abstract— Professional diving existed since antiquities when supply lines. In 1978, Fleuss introduced the first closed divers collected resources from the bottom of the seas and circuit oxygen breathing apparatus which removed carbon lakes. With technological advancements in the recent century, dioxide from the exhaled gas and did not form bubbles professional diving activities also increased significantly. underwater. In 1943, Cousteau and Gangan designed the Diving has many adverse effects on human physiology which first proper demand-regulated air supply from compressed are widely investigated in order to make dives safer. In this air cylinders worn on the back. The scuba equipment with study, we focus on optimizing the breathing gas mixture minimizing the dive costs while ensuring the safety of the the high-pressure regulator on the cylinder and a single hose divers. The methods proposed in this paper are purely to a demand valve was invented in Australia and marketed theoretical and divers should always have appropriate training by Ted Eldred in the early 1950s [1]. and certificates. Also, divers should never perform dives With the use of Siebe dress, the first cases of decompression without consulting professionals and medical doctors with expertise in related fields. sickness began to be documented. Haldane conducted several experiments on animal and human subjects in Index Terms—-professional diving; breathing gas compression chambers to investigate the causes of this optimization; dive profile optimization sickness and how it can be prevented. -
Darling Marine Center Local Shore Diving Guide
Darling Marine Center Local Shore Diving Guide University of Maine Scientific Diving Program Table of Contents Recommended Equipment List……………………………………………………………..2 Local Information…………………………………………………………………………...3 Recompression Chambers…………………………………………………………………..3 General Emergency Action Plan…………………………………………………………….3-4 Documentation……………………………………………………………………………….4 Dive Sites DMC Pier……………………………………………………………………………5-6 Kresge Point………………………………………………………………………….7-8 Lowes Cove Mooring Field…………………………………………………………..9-10 Pemaquid Point……………………………………………………………………….11-12 Rachel Carson Preserve………………………………………………………………13-15 Sand Cove…………………………………………………………………………….16-17 Thread of life…………………………………………………………………………18-19 Appendix………………………………………………………………………………………20 1 Recommended Equipment List • Dive flag • DAN oxygen and first aid kit • Spare tank • Extra weights • Save-a-dive kit • Dive slate/underwater paper (recording purposes) Recommended Personal Equipment • Exposure suit- minimum7mm wetsuit o Booties o Gloves o Hood o Wool socks • Fins • BCD • Mask, Snorkel • Weights • Surface marker buoy • Dive watch • Dive computer • Knife/cutting tool 2 Local Information: Fire, Medical, Police 911 Emergency Dispatch Lincoln County Emergency (207)563-3200 Center Nearest Hospital Lincoln Health-Miles (207)563-1234 Campus USCG Boothbay (207)633-2661 Divers Alert Network Emergency hotline 1-919-684-9111 Medical information 1-919-684-2948 Diving Safety Officer Christopher Rigaud (207)563-8273 Recompression Chambers: In the event of a diving accident, call 911 and facilitate transport of victim to a hospital or medical facility. The medical staff will determine whether hyperbaric treatment is needed. St. Mary’s Regional Lewiston, ME (207)777-8331 Will NOT accept Medical Center divers after 4:30pm St. Joseph’s Hospital Bangor, ME (207)262-1550 Typically, available after hours Wound and Beverly, MA (978)921-1210 Hyperbaric Medicine Basic Emergency Information: See Appendix for the approved Emergency Action Plan by the UMaine DCB. -
North American Buyers Guide 2013
NORTH AMERICAN BUYERS GUIDE 2013 www.whitesdiving.com www.whitesdiving.com CONTENTS HAZMAT PS DRYSUIT WHAT ARE POlyTEX SEALS? ____________________________________ 19 (PUBLIC SAFETY HAZMAT DIVER) ________________________________ 3 MK0 UNDERGARMENT ___________________________________________ 20 HAZMAT COM DRYSUIT MK1 UNDERGARMENT ___________________________________________ 21 (COMMERCIAL HAZMAT DIVER) __________________________________ 4 MK2 ONE PIECE UNDERGARMENT ______________________________ 22 PRO COM DRYSUIT (GENERAL PURPOSE COMMERCIAL DIVER) ______________________ 5 MK2 JACKET UNDERGARMENT _________________________________ 23 ENVIRO DRYSUIT _________________________________________________ 6 THERMAL FUSION UNDERGARMENT ____________________________ 24 ENVIRO HYBRID DRYSUIT ________________________________________ 7 HOODS - NEOPRENE _____________________________________________ 25 FUSION S.A.R. DRYSUIT HOODS - POLYTEX & CAPS ______________________________________ 26 (DIVE OR SURFACE/SWIMMER) ___________________________________ 8 GLOVES - NEOPRENE ____________________________________________ 27 FUSION L.E.* DRYSUIT (DIVE OR SURFACE/SWIMMER) ___________________________________ 9 GLOVES - COMMERCIAL _________________________________________ 28 KODIAK 360 S.A.R. DRYSUIT ____________________________________ 10 GLOVES & LINERS _______________________________________________ 29 KODIAK 360 L.E.* ________________________________________________ 11 GLOVES - RING SYSTEMS ________________________________________ 30 MOSS* S.A.R. DRYSUIT FOOTWEAR